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33 | (function (root, factory) {
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34 | 'use strict';
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35 |
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36 |
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37 |
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38 |
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39 |
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40 | if (typeof define === 'function' && define.amd) {
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41 | define(['exports'], factory);
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42 | } else if (typeof exports !== 'undefined') {
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43 | factory(exports);
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44 | } else {
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45 | factory((root.esprima = {}));
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46 | }
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47 | }(this, function (exports) {
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48 | 'use strict';
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49 |
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50 | var Token,
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51 | TokenName,
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52 | FnExprTokens,
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53 | Syntax,
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54 | PropertyKind,
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55 | Messages,
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56 | Regex,
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57 | SyntaxTreeDelegate,
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58 | XHTMLEntities,
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59 | ClassPropertyType,
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60 | source,
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61 | strict,
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62 | index,
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63 | lineNumber,
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64 | lineStart,
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65 | length,
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66 | delegate,
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67 | lookahead,
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68 | state,
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69 | extra;
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70 |
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71 | Token = {
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72 | BooleanLiteral: 1,
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73 | EOF: 2,
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74 | Identifier: 3,
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75 | Keyword: 4,
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76 | NullLiteral: 5,
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77 | NumericLiteral: 6,
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78 | Punctuator: 7,
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79 | StringLiteral: 8,
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80 | RegularExpression: 9,
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81 | Template: 10,
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82 | JSXIdentifier: 11,
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83 | JSXText: 12
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84 | };
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85 |
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86 | TokenName = {};
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87 | TokenName[Token.BooleanLiteral] = 'Boolean';
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88 | TokenName[Token.EOF] = '<end>';
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89 | TokenName[Token.Identifier] = 'Identifier';
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90 | TokenName[Token.Keyword] = 'Keyword';
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91 | TokenName[Token.NullLiteral] = 'Null';
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92 | TokenName[Token.NumericLiteral] = 'Numeric';
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93 | TokenName[Token.Punctuator] = 'Punctuator';
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94 | TokenName[Token.StringLiteral] = 'String';
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95 | TokenName[Token.JSXIdentifier] = 'JSXIdentifier';
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96 | TokenName[Token.JSXText] = 'JSXText';
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97 | TokenName[Token.RegularExpression] = 'RegularExpression';
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98 | TokenName[Token.Template] = 'Template';
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99 |
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100 |
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101 | FnExprTokens = ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
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102 | 'return', 'case', 'delete', 'throw', 'void',
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103 |
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104 | '=', '+=', '-=', '*=', '/=', '%=', '<<=', '>>=', '>>>=',
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105 | '&=', '|=', '^=', ',',
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106 |
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107 | '+', '-', '*', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
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108 | '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
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109 | '<=', '<', '>', '!=', '!=='];
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110 |
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111 | Syntax = {
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112 | AnyTypeAnnotation: 'AnyTypeAnnotation',
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113 | ArrayExpression: 'ArrayExpression',
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114 | ArrayPattern: 'ArrayPattern',
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115 | ArrayTypeAnnotation: 'ArrayTypeAnnotation',
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116 | ArrowFunctionExpression: 'ArrowFunctionExpression',
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117 | AssignmentExpression: 'AssignmentExpression',
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118 | BinaryExpression: 'BinaryExpression',
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119 | BlockStatement: 'BlockStatement',
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120 | BooleanTypeAnnotation: 'BooleanTypeAnnotation',
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121 | BreakStatement: 'BreakStatement',
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122 | CallExpression: 'CallExpression',
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123 | CatchClause: 'CatchClause',
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124 | ClassBody: 'ClassBody',
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125 | ClassDeclaration: 'ClassDeclaration',
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126 | ClassExpression: 'ClassExpression',
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127 | ClassImplements: 'ClassImplements',
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128 | ClassProperty: 'ClassProperty',
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129 | ComprehensionBlock: 'ComprehensionBlock',
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130 | ComprehensionExpression: 'ComprehensionExpression',
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131 | ConditionalExpression: 'ConditionalExpression',
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132 | ContinueStatement: 'ContinueStatement',
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133 | DebuggerStatement: 'DebuggerStatement',
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134 | DeclareClass: 'DeclareClass',
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135 | DeclareFunction: 'DeclareFunction',
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136 | DeclareModule: 'DeclareModule',
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137 | DeclareVariable: 'DeclareVariable',
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138 | DoWhileStatement: 'DoWhileStatement',
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139 | EmptyStatement: 'EmptyStatement',
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140 | ExportDeclaration: 'ExportDeclaration',
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141 | ExportBatchSpecifier: 'ExportBatchSpecifier',
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142 | ExportSpecifier: 'ExportSpecifier',
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143 | ExpressionStatement: 'ExpressionStatement',
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144 | ForInStatement: 'ForInStatement',
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145 | ForOfStatement: 'ForOfStatement',
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146 | ForStatement: 'ForStatement',
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147 | FunctionDeclaration: 'FunctionDeclaration',
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148 | FunctionExpression: 'FunctionExpression',
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149 | FunctionTypeAnnotation: 'FunctionTypeAnnotation',
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150 | FunctionTypeParam: 'FunctionTypeParam',
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151 | GenericTypeAnnotation: 'GenericTypeAnnotation',
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152 | Identifier: 'Identifier',
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153 | IfStatement: 'IfStatement',
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154 | ImportDeclaration: 'ImportDeclaration',
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155 | ImportDefaultSpecifier: 'ImportDefaultSpecifier',
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156 | ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
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157 | ImportSpecifier: 'ImportSpecifier',
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158 | InterfaceDeclaration: 'InterfaceDeclaration',
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159 | InterfaceExtends: 'InterfaceExtends',
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160 | IntersectionTypeAnnotation: 'IntersectionTypeAnnotation',
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161 | LabeledStatement: 'LabeledStatement',
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162 | Literal: 'Literal',
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163 | LogicalExpression: 'LogicalExpression',
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164 | MemberExpression: 'MemberExpression',
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165 | MethodDefinition: 'MethodDefinition',
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166 | NewExpression: 'NewExpression',
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167 | NullableTypeAnnotation: 'NullableTypeAnnotation',
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168 | NumberTypeAnnotation: 'NumberTypeAnnotation',
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169 | ObjectExpression: 'ObjectExpression',
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170 | ObjectPattern: 'ObjectPattern',
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171 | ObjectTypeAnnotation: 'ObjectTypeAnnotation',
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172 | ObjectTypeCallProperty: 'ObjectTypeCallProperty',
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173 | ObjectTypeIndexer: 'ObjectTypeIndexer',
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174 | ObjectTypeProperty: 'ObjectTypeProperty',
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175 | Program: 'Program',
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176 | Property: 'Property',
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177 | QualifiedTypeIdentifier: 'QualifiedTypeIdentifier',
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178 | ReturnStatement: 'ReturnStatement',
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179 | SequenceExpression: 'SequenceExpression',
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180 | SpreadElement: 'SpreadElement',
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181 | SpreadProperty: 'SpreadProperty',
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182 | StringLiteralTypeAnnotation: 'StringLiteralTypeAnnotation',
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183 | StringTypeAnnotation: 'StringTypeAnnotation',
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184 | SwitchCase: 'SwitchCase',
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185 | SwitchStatement: 'SwitchStatement',
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186 | TaggedTemplateExpression: 'TaggedTemplateExpression',
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187 | TemplateElement: 'TemplateElement',
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188 | TemplateLiteral: 'TemplateLiteral',
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189 | ThisExpression: 'ThisExpression',
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190 | ThrowStatement: 'ThrowStatement',
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191 | TupleTypeAnnotation: 'TupleTypeAnnotation',
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192 | TryStatement: 'TryStatement',
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193 | TypeAlias: 'TypeAlias',
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194 | TypeAnnotation: 'TypeAnnotation',
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195 | TypeCastExpression: 'TypeCastExpression',
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196 | TypeofTypeAnnotation: 'TypeofTypeAnnotation',
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197 | TypeParameterDeclaration: 'TypeParameterDeclaration',
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198 | TypeParameterInstantiation: 'TypeParameterInstantiation',
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199 | UnaryExpression: 'UnaryExpression',
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200 | UnionTypeAnnotation: 'UnionTypeAnnotation',
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201 | UpdateExpression: 'UpdateExpression',
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202 | VariableDeclaration: 'VariableDeclaration',
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203 | VariableDeclarator: 'VariableDeclarator',
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204 | VoidTypeAnnotation: 'VoidTypeAnnotation',
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205 | WhileStatement: 'WhileStatement',
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206 | WithStatement: 'WithStatement',
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207 | JSXIdentifier: 'JSXIdentifier',
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208 | JSXNamespacedName: 'JSXNamespacedName',
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209 | JSXMemberExpression: 'JSXMemberExpression',
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210 | JSXEmptyExpression: 'JSXEmptyExpression',
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211 | JSXExpressionContainer: 'JSXExpressionContainer',
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212 | JSXElement: 'JSXElement',
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213 | JSXClosingElement: 'JSXClosingElement',
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214 | JSXOpeningElement: 'JSXOpeningElement',
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215 | JSXAttribute: 'JSXAttribute',
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216 | JSXSpreadAttribute: 'JSXSpreadAttribute',
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217 | JSXText: 'JSXText',
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218 | YieldExpression: 'YieldExpression',
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219 | AwaitExpression: 'AwaitExpression'
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220 | };
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221 |
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222 | PropertyKind = {
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223 | Data: 1,
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224 | Get: 2,
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225 | Set: 4
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226 | };
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227 |
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228 | ClassPropertyType = {
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229 | 'static': 'static',
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230 | prototype: 'prototype'
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231 | };
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232 |
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233 |
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234 | Messages = {
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235 | UnexpectedToken: 'Unexpected token %0',
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236 | UnexpectedNumber: 'Unexpected number',
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237 | UnexpectedString: 'Unexpected string',
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238 | UnexpectedIdentifier: 'Unexpected identifier',
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239 | UnexpectedReserved: 'Unexpected reserved word',
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240 | UnexpectedTemplate: 'Unexpected quasi %0',
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241 | UnexpectedEOS: 'Unexpected end of input',
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242 | NewlineAfterThrow: 'Illegal newline after throw',
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243 | InvalidRegExp: 'Invalid regular expression',
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244 | UnterminatedRegExp: 'Invalid regular expression: missing /',
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245 | InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
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246 | InvalidLHSInFormalsList: 'Invalid left-hand side in formals list',
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247 | InvalidLHSInForIn: 'Invalid left-hand side in for-in',
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248 | MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
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249 | NoCatchOrFinally: 'Missing catch or finally after try',
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250 | UnknownLabel: 'Undefined label \'%0\'',
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251 | Redeclaration: '%0 \'%1\' has already been declared',
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252 | IllegalContinue: 'Illegal continue statement',
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253 | IllegalBreak: 'Illegal break statement',
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254 | IllegalDuplicateClassProperty: 'Illegal duplicate property in class definition',
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255 | IllegalClassConstructorProperty: 'Illegal constructor property in class definition',
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256 | IllegalReturn: 'Illegal return statement',
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257 | IllegalSpread: 'Illegal spread element',
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258 | StrictModeWith: 'Strict mode code may not include a with statement',
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259 | StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
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260 | StrictVarName: 'Variable name may not be eval or arguments in strict mode',
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261 | StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
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262 | StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
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263 | ParameterAfterRestParameter: 'Rest parameter must be final parameter of an argument list',
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264 | DefaultRestParameter: 'Rest parameter can not have a default value',
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265 | ElementAfterSpreadElement: 'Spread must be the final element of an element list',
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266 | PropertyAfterSpreadProperty: 'A rest property must be the final property of an object literal',
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267 | ObjectPatternAsRestParameter: 'Invalid rest parameter',
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268 | ObjectPatternAsSpread: 'Invalid spread argument',
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269 | StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
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270 | StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
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271 | StrictDelete: 'Delete of an unqualified identifier in strict mode.',
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272 | StrictDuplicateProperty: 'Duplicate data property in object literal not allowed in strict mode',
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273 | AccessorDataProperty: 'Object literal may not have data and accessor property with the same name',
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274 | AccessorGetSet: 'Object literal may not have multiple get/set accessors with the same name',
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275 | StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
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276 | StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
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277 | StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
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278 | StrictReservedWord: 'Use of future reserved word in strict mode',
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279 | MissingFromClause: 'Missing from clause',
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280 | NoAsAfterImportNamespace: 'Missing as after import *',
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281 | InvalidModuleSpecifier: 'Invalid module specifier',
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282 | IllegalImportDeclaration: 'Illegal import declaration',
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283 | IllegalExportDeclaration: 'Illegal export declaration',
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284 | NoUninitializedConst: 'Const must be initialized',
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285 | ComprehensionRequiresBlock: 'Comprehension must have at least one block',
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286 | ComprehensionError: 'Comprehension Error',
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287 | EachNotAllowed: 'Each is not supported',
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288 | InvalidJSXAttributeValue: 'JSX value should be either an expression or a quoted JSX text',
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289 | ExpectedJSXClosingTag: 'Expected corresponding JSX closing tag for %0',
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290 | AdjacentJSXElements: 'Adjacent JSX elements must be wrapped in an enclosing tag',
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291 | ConfusedAboutFunctionType: 'Unexpected token =>. It looks like ' +
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292 | 'you are trying to write a function type, but you ended up ' +
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293 | 'writing a grouped type followed by an =>, which is a syntax ' +
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294 | 'error. Remember, function type parameters are named so function ' +
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295 | 'types look like (name1: type1, name2: type2) => returnType. You ' +
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296 | 'probably wrote (type1) => returnType'
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297 | };
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298 |
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299 |
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300 | Regex = {
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301 | NonAsciiIdentifierStart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\u0c60\u0c61\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d60\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]'),
|
302 | NonAsciiIdentifierPart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0300-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u0483-\u0487\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u05d0-\u05ea\u05f0-\u05f2\u0610-\u061a\u0620-\u0669\u066e-\u06d3\u06d5-\u06dc\u06df-\u06e8\u06ea-\u06fc\u06ff\u0710-\u074a\u074d-\u07b1\u07c0-\u07f5\u07fa\u0800-\u082d\u0840-\u085b\u08a0\u08a2-\u08ac\u08e4-\u08fe\u0900-\u0963\u0966-\u096f\u0971-\u0977\u0979-\u097f\u0981-\u0983\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bc-\u09c4\u09c7\u09c8\u09cb-\u09ce\u09d7\u09dc\u09dd\u09df-\u09e3\u09e6-\u09f1\u0a01-\u0a03\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a59-\u0a5c\u0a5e\u0a66-\u0a75\u0a81-\u0a83\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abc-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ad0\u0ae0-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3c-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5c\u0b5d\u0b5f-\u0b63\u0b66-\u0b6f\u0b71\u0b82\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd0\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c58\u0c59\u0c60-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbc-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0cde\u0ce0-\u0ce3\u0ce6-\u0cef\u0cf1\u0cf2\u0d02\u0d03\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d-\u0d44\u0d46-\u0d48\u0d4a-\u0d4e\u0d57\u0d60-\u0d63\u0d66-\u0d6f\u0d7a-\u0d7f\u0d82\u0d83\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e01-\u0e3a\u0e40-\u0e4e\u0e50-\u0e59\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb9\u0ebb-\u0ebd\u0ec0-\u0ec4\u0ec6\u0ec8-\u0ecd\u0ed0-\u0ed9\u0edc-\u0edf\u0f00\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e-\u0f47\u0f49-\u0f6c\u0f71-\u0f84\u0f86-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1049\u1050-\u109d\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u135d-\u135f\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176c\u176e-\u1770\u1772\u1773\u1780-\u17d3\u17d7\u17dc\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1820-\u1877\u1880-\u18aa\u18b0-\u18f5\u1900-\u191c\u1920-\u192b\u1930-\u193b\u1946-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u19d0-\u19d9\u1a00-\u1a1b\u1a20-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1aa7\u1b00-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1bf3\u1c00-\u1c37\u1c40-\u1c49\u1c4d-\u1c7d\u1cd0-\u1cd2\u1cd4-\u1cf6\u1d00-\u1de6\u1dfc-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u200c\u200d\u203f\u2040\u2054\u2071\u207f\u2090-\u209c\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d7f-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2de0-\u2dff\u2e2f\u3005-\u3007\u3021-\u302f\u3031-\u3035\u3038-\u303c\u3041-\u3096\u3099\u309a\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua62b\ua640-\ua66f\ua674-\ua67d\ua67f-\ua697\ua69f-\ua6f1\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua827\ua840-\ua873\ua880-\ua8c4\ua8d0-\ua8d9\ua8e0-\ua8f7\ua8fb\ua900-\ua92d\ua930-\ua953\ua960-\ua97c\ua980-\ua9c0\ua9cf-\ua9d9\uaa00-\uaa36\uaa40-\uaa4d\uaa50-\uaa59\uaa60-\uaa76\uaa7a\uaa7b\uaa80-\uaac2\uaadb-\uaadd\uaae0-\uaaef\uaaf2-\uaaf6\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabea\uabec\uabed\uabf0-\uabf9\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\ufe70-\ufe74\ufe76-\ufefc\uff10-\uff19\uff21-\uff3a\uff3f\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]'),
|
303 | LeadingZeros: new RegExp('^0+(?!$)')
|
304 | };
|
305 |
|
306 |
|
307 |
|
308 |
|
309 |
|
310 |
|
311 | function assert(condition, message) {
|
312 |
|
313 | if (!condition) {
|
314 | throw new Error('ASSERT: ' + message);
|
315 | }
|
316 | }
|
317 |
|
318 | function StringMap() {
|
319 | this.$data = {};
|
320 | }
|
321 |
|
322 | StringMap.prototype.get = function (key) {
|
323 | key = '$' + key;
|
324 | return this.$data[key];
|
325 | };
|
326 |
|
327 | StringMap.prototype.set = function (key, value) {
|
328 | key = '$' + key;
|
329 | this.$data[key] = value;
|
330 | return this;
|
331 | };
|
332 |
|
333 | StringMap.prototype.has = function (key) {
|
334 | key = '$' + key;
|
335 | return Object.prototype.hasOwnProperty.call(this.$data, key);
|
336 | };
|
337 |
|
338 | StringMap.prototype.delete = function (key) {
|
339 | key = '$' + key;
|
340 | return delete this.$data[key];
|
341 | };
|
342 |
|
343 | function isDecimalDigit(ch) {
|
344 | return (ch >= 48 && ch <= 57);
|
345 | }
|
346 |
|
347 | function isHexDigit(ch) {
|
348 | return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
|
349 | }
|
350 |
|
351 | function isOctalDigit(ch) {
|
352 | return '01234567'.indexOf(ch) >= 0;
|
353 | }
|
354 |
|
355 |
|
356 |
|
357 |
|
358 | function isWhiteSpace(ch) {
|
359 | return (ch === 32) ||
|
360 | (ch === 9) ||
|
361 | (ch === 0xB) ||
|
362 | (ch === 0xC) ||
|
363 | (ch === 0xA0) ||
|
364 | (ch >= 0x1680 && '\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\uFEFF'.indexOf(String.fromCharCode(ch)) > 0);
|
365 | }
|
366 |
|
367 |
|
368 |
|
369 | function isLineTerminator(ch) {
|
370 | return (ch === 10) || (ch === 13) || (ch === 0x2028) || (ch === 0x2029);
|
371 | }
|
372 |
|
373 |
|
374 |
|
375 | function isIdentifierStart(ch) {
|
376 | return (ch === 36) || (ch === 95) ||
|
377 | (ch >= 65 && ch <= 90) ||
|
378 | (ch >= 97 && ch <= 122) ||
|
379 | (ch === 92) ||
|
380 | ((ch >= 0x80) && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch)));
|
381 | }
|
382 |
|
383 | function isIdentifierPart(ch) {
|
384 | return (ch === 36) || (ch === 95) ||
|
385 | (ch >= 65 && ch <= 90) ||
|
386 | (ch >= 97 && ch <= 122) ||
|
387 | (ch >= 48 && ch <= 57) ||
|
388 | (ch === 92) ||
|
389 | ((ch >= 0x80) && Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch)));
|
390 | }
|
391 |
|
392 |
|
393 |
|
394 | function isFutureReservedWord(id) {
|
395 | switch (id) {
|
396 | case 'class':
|
397 | case 'enum':
|
398 | case 'export':
|
399 | case 'extends':
|
400 | case 'import':
|
401 | case 'super':
|
402 | return true;
|
403 | default:
|
404 | return false;
|
405 | }
|
406 | }
|
407 |
|
408 | function isStrictModeReservedWord(id) {
|
409 | switch (id) {
|
410 | case 'implements':
|
411 | case 'interface':
|
412 | case 'package':
|
413 | case 'private':
|
414 | case 'protected':
|
415 | case 'public':
|
416 | case 'static':
|
417 | case 'yield':
|
418 | case 'let':
|
419 | return true;
|
420 | default:
|
421 | return false;
|
422 | }
|
423 | }
|
424 |
|
425 | function isRestrictedWord(id) {
|
426 | return id === 'eval' || id === 'arguments';
|
427 | }
|
428 |
|
429 |
|
430 |
|
431 | function isKeyword(id) {
|
432 | if (strict && isStrictModeReservedWord(id)) {
|
433 | return true;
|
434 | }
|
435 |
|
436 |
|
437 |
|
438 |
|
439 |
|
440 |
|
441 | switch (id.length) {
|
442 | case 2:
|
443 | return (id === 'if') || (id === 'in') || (id === 'do');
|
444 | case 3:
|
445 | return (id === 'var') || (id === 'for') || (id === 'new') ||
|
446 | (id === 'try') || (id === 'let');
|
447 | case 4:
|
448 | return (id === 'this') || (id === 'else') || (id === 'case') ||
|
449 | (id === 'void') || (id === 'with') || (id === 'enum');
|
450 | case 5:
|
451 | return (id === 'while') || (id === 'break') || (id === 'catch') ||
|
452 | (id === 'throw') || (id === 'const') ||
|
453 | (id === 'class') || (id === 'super');
|
454 | case 6:
|
455 | return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
|
456 | (id === 'switch') || (id === 'export') || (id === 'import');
|
457 | case 7:
|
458 | return (id === 'default') || (id === 'finally') || (id === 'extends');
|
459 | case 8:
|
460 | return (id === 'function') || (id === 'continue') || (id === 'debugger');
|
461 | case 10:
|
462 | return (id === 'instanceof');
|
463 | default:
|
464 | return false;
|
465 | }
|
466 | }
|
467 |
|
468 |
|
469 |
|
470 | function addComment(type, value, start, end, loc) {
|
471 | var comment;
|
472 | assert(typeof start === 'number', 'Comment must have valid position');
|
473 |
|
474 |
|
475 |
|
476 |
|
477 |
|
478 | if (state.lastCommentStart >= start) {
|
479 | return;
|
480 | }
|
481 | state.lastCommentStart = start;
|
482 |
|
483 | comment = {
|
484 | type: type,
|
485 | value: value
|
486 | };
|
487 | if (extra.range) {
|
488 | comment.range = [start, end];
|
489 | }
|
490 | if (extra.loc) {
|
491 | comment.loc = loc;
|
492 | }
|
493 | extra.comments.push(comment);
|
494 | if (extra.attachComment) {
|
495 | extra.leadingComments.push(comment);
|
496 | extra.trailingComments.push(comment);
|
497 | }
|
498 | }
|
499 |
|
500 | function skipSingleLineComment() {
|
501 | var start, loc, ch, comment;
|
502 |
|
503 | start = index - 2;
|
504 | loc = {
|
505 | start: {
|
506 | line: lineNumber,
|
507 | column: index - lineStart - 2
|
508 | }
|
509 | };
|
510 |
|
511 | while (index < length) {
|
512 | ch = source.charCodeAt(index);
|
513 | ++index;
|
514 | if (isLineTerminator(ch)) {
|
515 | if (extra.comments) {
|
516 | comment = source.slice(start + 2, index - 1);
|
517 | loc.end = {
|
518 | line: lineNumber,
|
519 | column: index - lineStart - 1
|
520 | };
|
521 | addComment('Line', comment, start, index - 1, loc);
|
522 | }
|
523 | if (ch === 13 && source.charCodeAt(index) === 10) {
|
524 | ++index;
|
525 | }
|
526 | ++lineNumber;
|
527 | lineStart = index;
|
528 | return;
|
529 | }
|
530 | }
|
531 |
|
532 | if (extra.comments) {
|
533 | comment = source.slice(start + 2, index);
|
534 | loc.end = {
|
535 | line: lineNumber,
|
536 | column: index - lineStart
|
537 | };
|
538 | addComment('Line', comment, start, index, loc);
|
539 | }
|
540 | }
|
541 |
|
542 | function skipMultiLineComment() {
|
543 | var start, loc, ch, comment;
|
544 |
|
545 | if (extra.comments) {
|
546 | start = index - 2;
|
547 | loc = {
|
548 | start: {
|
549 | line: lineNumber,
|
550 | column: index - lineStart - 2
|
551 | }
|
552 | };
|
553 | }
|
554 |
|
555 | while (index < length) {
|
556 | ch = source.charCodeAt(index);
|
557 | if (isLineTerminator(ch)) {
|
558 | if (ch === 13 && source.charCodeAt(index + 1) === 10) {
|
559 | ++index;
|
560 | }
|
561 | ++lineNumber;
|
562 | ++index;
|
563 | lineStart = index;
|
564 | if (index >= length) {
|
565 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
566 | }
|
567 | } else if (ch === 42) {
|
568 |
|
569 | if (source.charCodeAt(index + 1) === 47) {
|
570 | ++index;
|
571 | ++index;
|
572 | if (extra.comments) {
|
573 | comment = source.slice(start + 2, index - 2);
|
574 | loc.end = {
|
575 | line: lineNumber,
|
576 | column: index - lineStart
|
577 | };
|
578 | addComment('Block', comment, start, index, loc);
|
579 | }
|
580 | return;
|
581 | }
|
582 | ++index;
|
583 | } else {
|
584 | ++index;
|
585 | }
|
586 | }
|
587 |
|
588 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
589 | }
|
590 |
|
591 | function skipComment() {
|
592 | var ch;
|
593 |
|
594 | while (index < length) {
|
595 | ch = source.charCodeAt(index);
|
596 |
|
597 | if (isWhiteSpace(ch)) {
|
598 | ++index;
|
599 | } else if (isLineTerminator(ch)) {
|
600 | ++index;
|
601 | if (ch === 13 && source.charCodeAt(index) === 10) {
|
602 | ++index;
|
603 | }
|
604 | ++lineNumber;
|
605 | lineStart = index;
|
606 | } else if (ch === 47) {
|
607 | ch = source.charCodeAt(index + 1);
|
608 | if (ch === 47) {
|
609 | ++index;
|
610 | ++index;
|
611 | skipSingleLineComment();
|
612 | } else if (ch === 42) {
|
613 | ++index;
|
614 | ++index;
|
615 | skipMultiLineComment();
|
616 | } else {
|
617 | break;
|
618 | }
|
619 | } else {
|
620 | break;
|
621 | }
|
622 | }
|
623 | }
|
624 |
|
625 | function scanHexEscape(prefix) {
|
626 | var i, len, ch, code = 0;
|
627 |
|
628 | len = (prefix === 'u') ? 4 : 2;
|
629 | for (i = 0; i < len; ++i) {
|
630 | if (index < length && isHexDigit(source[index])) {
|
631 | ch = source[index++];
|
632 | code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
|
633 | } else {
|
634 | return '';
|
635 | }
|
636 | }
|
637 | return String.fromCharCode(code);
|
638 | }
|
639 |
|
640 | function scanUnicodeCodePointEscape() {
|
641 | var ch, code, cu1, cu2;
|
642 |
|
643 | ch = source[index];
|
644 | code = 0;
|
645 |
|
646 |
|
647 | if (ch === '}') {
|
648 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
649 | }
|
650 |
|
651 | while (index < length) {
|
652 | ch = source[index++];
|
653 | if (!isHexDigit(ch)) {
|
654 | break;
|
655 | }
|
656 | code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
|
657 | }
|
658 |
|
659 | if (code > 0x10FFFF || ch !== '}') {
|
660 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
661 | }
|
662 |
|
663 |
|
664 | if (code <= 0xFFFF) {
|
665 | return String.fromCharCode(code);
|
666 | }
|
667 | cu1 = ((code - 0x10000) >> 10) + 0xD800;
|
668 | cu2 = ((code - 0x10000) & 1023) + 0xDC00;
|
669 | return String.fromCharCode(cu1, cu2);
|
670 | }
|
671 |
|
672 | function getEscapedIdentifier() {
|
673 | var ch, id;
|
674 |
|
675 | ch = source.charCodeAt(index++);
|
676 | id = String.fromCharCode(ch);
|
677 |
|
678 |
|
679 | if (ch === 92) {
|
680 | if (source.charCodeAt(index) !== 117) {
|
681 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
682 | }
|
683 | ++index;
|
684 | ch = scanHexEscape('u');
|
685 | if (!ch || ch === '\\' || !isIdentifierStart(ch.charCodeAt(0))) {
|
686 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
687 | }
|
688 | id = ch;
|
689 | }
|
690 |
|
691 | while (index < length) {
|
692 | ch = source.charCodeAt(index);
|
693 | if (!isIdentifierPart(ch)) {
|
694 | break;
|
695 | }
|
696 | ++index;
|
697 | id += String.fromCharCode(ch);
|
698 |
|
699 |
|
700 | if (ch === 92) {
|
701 | id = id.substr(0, id.length - 1);
|
702 | if (source.charCodeAt(index) !== 117) {
|
703 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
704 | }
|
705 | ++index;
|
706 | ch = scanHexEscape('u');
|
707 | if (!ch || ch === '\\' || !isIdentifierPart(ch.charCodeAt(0))) {
|
708 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
709 | }
|
710 | id += ch;
|
711 | }
|
712 | }
|
713 |
|
714 | return id;
|
715 | }
|
716 |
|
717 | function getIdentifier() {
|
718 | var start, ch;
|
719 |
|
720 | start = index++;
|
721 | while (index < length) {
|
722 | ch = source.charCodeAt(index);
|
723 | if (ch === 92) {
|
724 |
|
725 | index = start;
|
726 | return getEscapedIdentifier();
|
727 | }
|
728 | if (isIdentifierPart(ch)) {
|
729 | ++index;
|
730 | } else {
|
731 | break;
|
732 | }
|
733 | }
|
734 |
|
735 | return source.slice(start, index);
|
736 | }
|
737 |
|
738 | function scanIdentifier() {
|
739 | var start, id, type;
|
740 |
|
741 | start = index;
|
742 |
|
743 |
|
744 | id = (source.charCodeAt(index) === 92) ? getEscapedIdentifier() : getIdentifier();
|
745 |
|
746 |
|
747 |
|
748 | if (id.length === 1) {
|
749 | type = Token.Identifier;
|
750 | } else if (isKeyword(id)) {
|
751 | type = Token.Keyword;
|
752 | } else if (id === 'null') {
|
753 | type = Token.NullLiteral;
|
754 | } else if (id === 'true' || id === 'false') {
|
755 | type = Token.BooleanLiteral;
|
756 | } else {
|
757 | type = Token.Identifier;
|
758 | }
|
759 |
|
760 | return {
|
761 | type: type,
|
762 | value: id,
|
763 | lineNumber: lineNumber,
|
764 | lineStart: lineStart,
|
765 | range: [start, index]
|
766 | };
|
767 | }
|
768 |
|
769 |
|
770 |
|
771 |
|
772 | function scanPunctuator() {
|
773 | var start = index,
|
774 | code = source.charCodeAt(index),
|
775 | code2,
|
776 | ch1 = source[index],
|
777 | ch2,
|
778 | ch3,
|
779 | ch4;
|
780 |
|
781 | if (state.inJSXTag || state.inJSXChild) {
|
782 |
|
783 |
|
784 | switch (code) {
|
785 | case 60:
|
786 | case 62:
|
787 | ++index;
|
788 | return {
|
789 | type: Token.Punctuator,
|
790 | value: String.fromCharCode(code),
|
791 | lineNumber: lineNumber,
|
792 | lineStart: lineStart,
|
793 | range: [start, index]
|
794 | };
|
795 | }
|
796 | }
|
797 |
|
798 | switch (code) {
|
799 |
|
800 | case 40:
|
801 | case 41:
|
802 | case 59:
|
803 | case 44:
|
804 | case 91:
|
805 | case 93:
|
806 | case 58:
|
807 | case 63:
|
808 | case 126:
|
809 | ++index;
|
810 | if (extra.tokenize && code === 40) {
|
811 | extra.openParenToken = extra.tokens.length;
|
812 | }
|
813 |
|
814 | return {
|
815 | type: Token.Punctuator,
|
816 | value: String.fromCharCode(code),
|
817 | lineNumber: lineNumber,
|
818 | lineStart: lineStart,
|
819 | range: [start, index]
|
820 | };
|
821 |
|
822 | case 123:
|
823 | case 125:
|
824 | ++index;
|
825 | if (extra.tokenize && code === 123) {
|
826 | extra.openCurlyToken = extra.tokens.length;
|
827 | }
|
828 |
|
829 |
|
830 |
|
831 |
|
832 | if (index > state.curlyLastIndex) {
|
833 | state.curlyLastIndex = index;
|
834 | if (code === 123) {
|
835 | state.curlyStack.push('{');
|
836 | } else {
|
837 | state.curlyStack.pop();
|
838 | }
|
839 | }
|
840 |
|
841 | return {
|
842 | type: Token.Punctuator,
|
843 | value: String.fromCharCode(code),
|
844 | lineNumber: lineNumber,
|
845 | lineStart: lineStart,
|
846 | range: [start, index]
|
847 | };
|
848 |
|
849 | default:
|
850 | code2 = source.charCodeAt(index + 1);
|
851 |
|
852 |
|
853 | if (code2 === 61) {
|
854 | switch (code) {
|
855 | case 37:
|
856 | case 38:
|
857 | case 42:
|
858 | case 43:
|
859 | case 45:
|
860 | case 47:
|
861 | case 60:
|
862 | case 62:
|
863 | case 94:
|
864 | case 124:
|
865 | index += 2;
|
866 | return {
|
867 | type: Token.Punctuator,
|
868 | value: String.fromCharCode(code) + String.fromCharCode(code2),
|
869 | lineNumber: lineNumber,
|
870 | lineStart: lineStart,
|
871 | range: [start, index]
|
872 | };
|
873 |
|
874 | case 33:
|
875 | case 61:
|
876 | index += 2;
|
877 |
|
878 |
|
879 | if (source.charCodeAt(index) === 61) {
|
880 | ++index;
|
881 | }
|
882 | return {
|
883 | type: Token.Punctuator,
|
884 | value: source.slice(start, index),
|
885 | lineNumber: lineNumber,
|
886 | lineStart: lineStart,
|
887 | range: [start, index]
|
888 | };
|
889 | default:
|
890 | break;
|
891 | }
|
892 | }
|
893 | break;
|
894 | }
|
895 |
|
896 |
|
897 |
|
898 | ch2 = source[index + 1];
|
899 | ch3 = source[index + 2];
|
900 | ch4 = source[index + 3];
|
901 |
|
902 |
|
903 |
|
904 | if (ch1 === '>' && ch2 === '>' && ch3 === '>') {
|
905 | if (ch4 === '=') {
|
906 | index += 4;
|
907 | return {
|
908 | type: Token.Punctuator,
|
909 | value: '>>>=',
|
910 | lineNumber: lineNumber,
|
911 | lineStart: lineStart,
|
912 | range: [start, index]
|
913 | };
|
914 | }
|
915 | }
|
916 |
|
917 |
|
918 |
|
919 | if (ch1 === '>' && ch2 === '>' && ch3 === '>' && !state.inType) {
|
920 | index += 3;
|
921 | return {
|
922 | type: Token.Punctuator,
|
923 | value: '>>>',
|
924 | lineNumber: lineNumber,
|
925 | lineStart: lineStart,
|
926 | range: [start, index]
|
927 | };
|
928 | }
|
929 |
|
930 | if (ch1 === '<' && ch2 === '<' && ch3 === '=') {
|
931 | index += 3;
|
932 | return {
|
933 | type: Token.Punctuator,
|
934 | value: '<<=',
|
935 | lineNumber: lineNumber,
|
936 | lineStart: lineStart,
|
937 | range: [start, index]
|
938 | };
|
939 | }
|
940 |
|
941 | if (ch1 === '>' && ch2 === '>' && ch3 === '=') {
|
942 | index += 3;
|
943 | return {
|
944 | type: Token.Punctuator,
|
945 | value: '>>=',
|
946 | lineNumber: lineNumber,
|
947 | lineStart: lineStart,
|
948 | range: [start, index]
|
949 | };
|
950 | }
|
951 |
|
952 | if (ch1 === '.' && ch2 === '.' && ch3 === '.') {
|
953 | index += 3;
|
954 | return {
|
955 | type: Token.Punctuator,
|
956 | value: '...',
|
957 | lineNumber: lineNumber,
|
958 | lineStart: lineStart,
|
959 | range: [start, index]
|
960 | };
|
961 | }
|
962 |
|
963 |
|
964 |
|
965 |
|
966 |
|
967 | if (ch1 === ch2 && ('+-<>&|'.indexOf(ch1) >= 0) && !state.inType) {
|
968 | index += 2;
|
969 | return {
|
970 | type: Token.Punctuator,
|
971 | value: ch1 + ch2,
|
972 | lineNumber: lineNumber,
|
973 | lineStart: lineStart,
|
974 | range: [start, index]
|
975 | };
|
976 | }
|
977 |
|
978 | if (ch1 === '=' && ch2 === '>') {
|
979 | index += 2;
|
980 | return {
|
981 | type: Token.Punctuator,
|
982 | value: '=>',
|
983 | lineNumber: lineNumber,
|
984 | lineStart: lineStart,
|
985 | range: [start, index]
|
986 | };
|
987 | }
|
988 |
|
989 | if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
|
990 | ++index;
|
991 | return {
|
992 | type: Token.Punctuator,
|
993 | value: ch1,
|
994 | lineNumber: lineNumber,
|
995 | lineStart: lineStart,
|
996 | range: [start, index]
|
997 | };
|
998 | }
|
999 |
|
1000 | if (ch1 === '.') {
|
1001 | ++index;
|
1002 | return {
|
1003 | type: Token.Punctuator,
|
1004 | value: ch1,
|
1005 | lineNumber: lineNumber,
|
1006 | lineStart: lineStart,
|
1007 | range: [start, index]
|
1008 | };
|
1009 | }
|
1010 |
|
1011 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1012 | }
|
1013 |
|
1014 |
|
1015 |
|
1016 | function scanHexLiteral(start) {
|
1017 | var number = '';
|
1018 |
|
1019 | while (index < length) {
|
1020 | if (!isHexDigit(source[index])) {
|
1021 | break;
|
1022 | }
|
1023 | number += source[index++];
|
1024 | }
|
1025 |
|
1026 | if (number.length === 0) {
|
1027 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1028 | }
|
1029 |
|
1030 | if (isIdentifierStart(source.charCodeAt(index))) {
|
1031 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1032 | }
|
1033 |
|
1034 | return {
|
1035 | type: Token.NumericLiteral,
|
1036 | value: parseInt('0x' + number, 16),
|
1037 | lineNumber: lineNumber,
|
1038 | lineStart: lineStart,
|
1039 | range: [start, index]
|
1040 | };
|
1041 | }
|
1042 |
|
1043 | function scanBinaryLiteral(start) {
|
1044 | var ch, number;
|
1045 |
|
1046 | number = '';
|
1047 |
|
1048 | while (index < length) {
|
1049 | ch = source[index];
|
1050 | if (ch !== '0' && ch !== '1') {
|
1051 | break;
|
1052 | }
|
1053 | number += source[index++];
|
1054 | }
|
1055 |
|
1056 | if (number.length === 0) {
|
1057 |
|
1058 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1059 | }
|
1060 |
|
1061 | if (index < length) {
|
1062 | ch = source.charCodeAt(index);
|
1063 |
|
1064 | if (isIdentifierStart(ch) || isDecimalDigit(ch)) {
|
1065 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1066 | }
|
1067 | }
|
1068 |
|
1069 | return {
|
1070 | type: Token.NumericLiteral,
|
1071 | value: parseInt(number, 2),
|
1072 | lineNumber: lineNumber,
|
1073 | lineStart: lineStart,
|
1074 | range: [start, index]
|
1075 | };
|
1076 | }
|
1077 |
|
1078 | function scanOctalLiteral(prefix, start) {
|
1079 | var number, octal;
|
1080 |
|
1081 | if (isOctalDigit(prefix)) {
|
1082 | octal = true;
|
1083 | number = '0' + source[index++];
|
1084 | } else {
|
1085 | octal = false;
|
1086 | ++index;
|
1087 | number = '';
|
1088 | }
|
1089 |
|
1090 | while (index < length) {
|
1091 | if (!isOctalDigit(source[index])) {
|
1092 | break;
|
1093 | }
|
1094 | number += source[index++];
|
1095 | }
|
1096 |
|
1097 | if (!octal && number.length === 0) {
|
1098 |
|
1099 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1100 | }
|
1101 |
|
1102 | if (isIdentifierStart(source.charCodeAt(index)) || isDecimalDigit(source.charCodeAt(index))) {
|
1103 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1104 | }
|
1105 |
|
1106 | return {
|
1107 | type: Token.NumericLiteral,
|
1108 | value: parseInt(number, 8),
|
1109 | octal: octal,
|
1110 | lineNumber: lineNumber,
|
1111 | lineStart: lineStart,
|
1112 | range: [start, index]
|
1113 | };
|
1114 | }
|
1115 |
|
1116 | function scanNumericLiteral() {
|
1117 | var number, start, ch;
|
1118 |
|
1119 | ch = source[index];
|
1120 | assert(isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'),
|
1121 | 'Numeric literal must start with a decimal digit or a decimal point');
|
1122 |
|
1123 | start = index;
|
1124 | number = '';
|
1125 | if (ch !== '.') {
|
1126 | number = source[index++];
|
1127 | ch = source[index];
|
1128 |
|
1129 |
|
1130 |
|
1131 |
|
1132 |
|
1133 | if (number === '0') {
|
1134 | if (ch === 'x' || ch === 'X') {
|
1135 | ++index;
|
1136 | return scanHexLiteral(start);
|
1137 | }
|
1138 | if (ch === 'b' || ch === 'B') {
|
1139 | ++index;
|
1140 | return scanBinaryLiteral(start);
|
1141 | }
|
1142 | if (ch === 'o' || ch === 'O' || isOctalDigit(ch)) {
|
1143 | return scanOctalLiteral(ch, start);
|
1144 | }
|
1145 |
|
1146 | if (ch && isDecimalDigit(ch.charCodeAt(0))) {
|
1147 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1148 | }
|
1149 | }
|
1150 |
|
1151 | while (isDecimalDigit(source.charCodeAt(index))) {
|
1152 | number += source[index++];
|
1153 | }
|
1154 | ch = source[index];
|
1155 | }
|
1156 |
|
1157 | if (ch === '.') {
|
1158 | number += source[index++];
|
1159 | while (isDecimalDigit(source.charCodeAt(index))) {
|
1160 | number += source[index++];
|
1161 | }
|
1162 | ch = source[index];
|
1163 | }
|
1164 |
|
1165 | if (ch === 'e' || ch === 'E') {
|
1166 | number += source[index++];
|
1167 |
|
1168 | ch = source[index];
|
1169 | if (ch === '+' || ch === '-') {
|
1170 | number += source[index++];
|
1171 | }
|
1172 | if (isDecimalDigit(source.charCodeAt(index))) {
|
1173 | while (isDecimalDigit(source.charCodeAt(index))) {
|
1174 | number += source[index++];
|
1175 | }
|
1176 | } else {
|
1177 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1178 | }
|
1179 | }
|
1180 |
|
1181 | if (isIdentifierStart(source.charCodeAt(index))) {
|
1182 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1183 | }
|
1184 |
|
1185 | return {
|
1186 | type: Token.NumericLiteral,
|
1187 | value: parseFloat(number),
|
1188 | lineNumber: lineNumber,
|
1189 | lineStart: lineStart,
|
1190 | range: [start, index]
|
1191 | };
|
1192 | }
|
1193 |
|
1194 |
|
1195 |
|
1196 | function scanStringLiteral() {
|
1197 | var str = '', quote, start, ch, code, unescaped, restore, octal = false;
|
1198 |
|
1199 | quote = source[index];
|
1200 | assert((quote === '\'' || quote === '"'),
|
1201 | 'String literal must starts with a quote');
|
1202 |
|
1203 | start = index;
|
1204 | ++index;
|
1205 |
|
1206 | while (index < length) {
|
1207 | ch = source[index++];
|
1208 |
|
1209 | if (ch === quote) {
|
1210 | quote = '';
|
1211 | break;
|
1212 | } else if (ch === '\\') {
|
1213 | ch = source[index++];
|
1214 | if (!ch || !isLineTerminator(ch.charCodeAt(0))) {
|
1215 | switch (ch) {
|
1216 | case 'n':
|
1217 | str += '\n';
|
1218 | break;
|
1219 | case 'r':
|
1220 | str += '\r';
|
1221 | break;
|
1222 | case 't':
|
1223 | str += '\t';
|
1224 | break;
|
1225 | case 'u':
|
1226 | case 'x':
|
1227 | if (source[index] === '{') {
|
1228 | ++index;
|
1229 | str += scanUnicodeCodePointEscape();
|
1230 | } else {
|
1231 | restore = index;
|
1232 | unescaped = scanHexEscape(ch);
|
1233 | if (unescaped) {
|
1234 | str += unescaped;
|
1235 | } else {
|
1236 | index = restore;
|
1237 | str += ch;
|
1238 | }
|
1239 | }
|
1240 | break;
|
1241 | case 'b':
|
1242 | str += '\b';
|
1243 | break;
|
1244 | case 'f':
|
1245 | str += '\f';
|
1246 | break;
|
1247 | case 'v':
|
1248 | str += '\x0B';
|
1249 | break;
|
1250 |
|
1251 | default:
|
1252 | if (isOctalDigit(ch)) {
|
1253 | code = '01234567'.indexOf(ch);
|
1254 |
|
1255 |
|
1256 | if (code !== 0) {
|
1257 | octal = true;
|
1258 | }
|
1259 |
|
1260 |
|
1261 | if (index < length && isOctalDigit(source[index])) {
|
1262 | octal = true;
|
1263 | code = code * 8 + '01234567'.indexOf(source[index++]);
|
1264 |
|
1265 |
|
1266 |
|
1267 | if ('0123'.indexOf(ch) >= 0 &&
|
1268 | index < length &&
|
1269 | isOctalDigit(source[index])) {
|
1270 | code = code * 8 + '01234567'.indexOf(source[index++]);
|
1271 | }
|
1272 | }
|
1273 | str += String.fromCharCode(code);
|
1274 | } else {
|
1275 | str += ch;
|
1276 | }
|
1277 | break;
|
1278 | }
|
1279 | } else {
|
1280 | ++lineNumber;
|
1281 | if (ch === '\r' && source[index] === '\n') {
|
1282 | ++index;
|
1283 | }
|
1284 | lineStart = index;
|
1285 | }
|
1286 | } else if (isLineTerminator(ch.charCodeAt(0))) {
|
1287 | break;
|
1288 | } else {
|
1289 | str += ch;
|
1290 | }
|
1291 | }
|
1292 |
|
1293 | if (quote !== '') {
|
1294 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1295 | }
|
1296 |
|
1297 | return {
|
1298 | type: Token.StringLiteral,
|
1299 | value: str,
|
1300 | octal: octal,
|
1301 | lineNumber: lineNumber,
|
1302 | lineStart: lineStart,
|
1303 | range: [start, index]
|
1304 | };
|
1305 | }
|
1306 |
|
1307 | function scanTemplate() {
|
1308 | var cooked = '', ch, start, terminated, head, tail, restore, unescaped, code, octal;
|
1309 |
|
1310 | terminated = false;
|
1311 | tail = false;
|
1312 | start = index;
|
1313 | head = (source[index] === '`');
|
1314 |
|
1315 | ++index;
|
1316 |
|
1317 | while (index < length) {
|
1318 | ch = source[index++];
|
1319 | if (ch === '`') {
|
1320 | tail = true;
|
1321 | terminated = true;
|
1322 | break;
|
1323 | } else if (ch === '$') {
|
1324 | if (source[index] === '{') {
|
1325 | ++index;
|
1326 | terminated = true;
|
1327 | break;
|
1328 | }
|
1329 | cooked += ch;
|
1330 | } else if (ch === '\\') {
|
1331 | ch = source[index++];
|
1332 | if (!isLineTerminator(ch.charCodeAt(0))) {
|
1333 | switch (ch) {
|
1334 | case 'n':
|
1335 | cooked += '\n';
|
1336 | break;
|
1337 | case 'r':
|
1338 | cooked += '\r';
|
1339 | break;
|
1340 | case 't':
|
1341 | cooked += '\t';
|
1342 | break;
|
1343 | case 'u':
|
1344 | case 'x':
|
1345 | if (source[index] === '{') {
|
1346 | ++index;
|
1347 | cooked += scanUnicodeCodePointEscape();
|
1348 | } else {
|
1349 | restore = index;
|
1350 | unescaped = scanHexEscape(ch);
|
1351 | if (unescaped) {
|
1352 | cooked += unescaped;
|
1353 | } else {
|
1354 | index = restore;
|
1355 | cooked += ch;
|
1356 | }
|
1357 | }
|
1358 | break;
|
1359 | case 'b':
|
1360 | cooked += '\b';
|
1361 | break;
|
1362 | case 'f':
|
1363 | cooked += '\f';
|
1364 | break;
|
1365 | case 'v':
|
1366 | cooked += '\v';
|
1367 | break;
|
1368 |
|
1369 | default:
|
1370 | if (isOctalDigit(ch)) {
|
1371 | code = '01234567'.indexOf(ch);
|
1372 |
|
1373 |
|
1374 | if (code !== 0) {
|
1375 | octal = true;
|
1376 | }
|
1377 |
|
1378 |
|
1379 | if (index < length && isOctalDigit(source[index])) {
|
1380 | octal = true;
|
1381 | code = code * 8 + '01234567'.indexOf(source[index++]);
|
1382 |
|
1383 |
|
1384 |
|
1385 | if ('0123'.indexOf(ch) >= 0 &&
|
1386 | index < length &&
|
1387 | isOctalDigit(source[index])) {
|
1388 | code = code * 8 + '01234567'.indexOf(source[index++]);
|
1389 | }
|
1390 | }
|
1391 | cooked += String.fromCharCode(code);
|
1392 | } else {
|
1393 | cooked += ch;
|
1394 | }
|
1395 | break;
|
1396 | }
|
1397 | } else {
|
1398 | ++lineNumber;
|
1399 | if (ch === '\r' && source[index] === '\n') {
|
1400 | ++index;
|
1401 | }
|
1402 | lineStart = index;
|
1403 | }
|
1404 | } else if (isLineTerminator(ch.charCodeAt(0))) {
|
1405 | ++lineNumber;
|
1406 | if (ch === '\r' && source[index] === '\n') {
|
1407 | ++index;
|
1408 | }
|
1409 | lineStart = index;
|
1410 | cooked += '\n';
|
1411 | } else {
|
1412 | cooked += ch;
|
1413 | }
|
1414 | }
|
1415 |
|
1416 | if (!terminated) {
|
1417 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1418 | }
|
1419 |
|
1420 | if (index > state.curlyLastIndex) {
|
1421 | state.curlyLastIndex = index;
|
1422 | if (!tail) {
|
1423 | state.curlyStack.push('template');
|
1424 | }
|
1425 |
|
1426 | if (!head) {
|
1427 | state.curlyStack.pop();
|
1428 | }
|
1429 | }
|
1430 |
|
1431 | return {
|
1432 | type: Token.Template,
|
1433 | value: {
|
1434 | cooked: cooked,
|
1435 | raw: source.slice(start + 1, index - ((tail) ? 1 : 2))
|
1436 | },
|
1437 | head: head,
|
1438 | tail: tail,
|
1439 | octal: octal,
|
1440 | lineNumber: lineNumber,
|
1441 | lineStart: lineStart,
|
1442 | range: [start, index]
|
1443 | };
|
1444 | }
|
1445 |
|
1446 | function testRegExp(pattern, flags) {
|
1447 | var tmp = pattern,
|
1448 | value;
|
1449 |
|
1450 | if (flags.indexOf('u') >= 0) {
|
1451 |
|
1452 |
|
1453 |
|
1454 |
|
1455 |
|
1456 |
|
1457 |
|
1458 |
|
1459 | tmp = tmp
|
1460 | .replace(/\\u\{([0-9a-fA-F]+)\}/g, function ($0, $1) {
|
1461 | if (parseInt($1, 16) <= 0x10FFFF) {
|
1462 | return 'x';
|
1463 | }
|
1464 | throwError({}, Messages.InvalidRegExp);
|
1465 | })
|
1466 | .replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, 'x');
|
1467 | }
|
1468 |
|
1469 |
|
1470 | try {
|
1471 | value = new RegExp(tmp);
|
1472 | } catch (e) {
|
1473 | throwError({}, Messages.InvalidRegExp);
|
1474 | }
|
1475 |
|
1476 |
|
1477 |
|
1478 |
|
1479 | try {
|
1480 | return new RegExp(pattern, flags);
|
1481 | } catch (exception) {
|
1482 | return null;
|
1483 | }
|
1484 | }
|
1485 |
|
1486 | function scanRegExpBody() {
|
1487 | var ch, str, classMarker, terminated, body;
|
1488 |
|
1489 | ch = source[index];
|
1490 | assert(ch === '/', 'Regular expression literal must start with a slash');
|
1491 | str = source[index++];
|
1492 |
|
1493 | classMarker = false;
|
1494 | terminated = false;
|
1495 | while (index < length) {
|
1496 | ch = source[index++];
|
1497 | str += ch;
|
1498 | if (ch === '\\') {
|
1499 | ch = source[index++];
|
1500 |
|
1501 | if (isLineTerminator(ch.charCodeAt(0))) {
|
1502 | throwError({}, Messages.UnterminatedRegExp);
|
1503 | }
|
1504 | str += ch;
|
1505 | } else if (isLineTerminator(ch.charCodeAt(0))) {
|
1506 | throwError({}, Messages.UnterminatedRegExp);
|
1507 | } else if (classMarker) {
|
1508 | if (ch === ']') {
|
1509 | classMarker = false;
|
1510 | }
|
1511 | } else {
|
1512 | if (ch === '/') {
|
1513 | terminated = true;
|
1514 | break;
|
1515 | } else if (ch === '[') {
|
1516 | classMarker = true;
|
1517 | }
|
1518 | }
|
1519 | }
|
1520 |
|
1521 | if (!terminated) {
|
1522 | throwError({}, Messages.UnterminatedRegExp);
|
1523 | }
|
1524 |
|
1525 |
|
1526 | body = str.substr(1, str.length - 2);
|
1527 | return {
|
1528 | value: body,
|
1529 | literal: str
|
1530 | };
|
1531 | }
|
1532 |
|
1533 | function scanRegExpFlags() {
|
1534 | var ch, str, flags, restore;
|
1535 |
|
1536 | str = '';
|
1537 | flags = '';
|
1538 | while (index < length) {
|
1539 | ch = source[index];
|
1540 | if (!isIdentifierPart(ch.charCodeAt(0))) {
|
1541 | break;
|
1542 | }
|
1543 |
|
1544 | ++index;
|
1545 | if (ch === '\\' && index < length) {
|
1546 | ch = source[index];
|
1547 | if (ch === 'u') {
|
1548 | ++index;
|
1549 | restore = index;
|
1550 | ch = scanHexEscape('u');
|
1551 | if (ch) {
|
1552 | flags += ch;
|
1553 | for (str += '\\u'; restore < index; ++restore) {
|
1554 | str += source[restore];
|
1555 | }
|
1556 | } else {
|
1557 | index = restore;
|
1558 | flags += 'u';
|
1559 | str += '\\u';
|
1560 | }
|
1561 | throwErrorTolerant({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1562 | } else {
|
1563 | str += '\\';
|
1564 | throwErrorTolerant({}, Messages.UnexpectedToken, 'ILLEGAL');
|
1565 | }
|
1566 | } else {
|
1567 | flags += ch;
|
1568 | str += ch;
|
1569 | }
|
1570 | }
|
1571 |
|
1572 | return {
|
1573 | value: flags,
|
1574 | literal: str
|
1575 | };
|
1576 | }
|
1577 |
|
1578 | function scanRegExp() {
|
1579 | var start, body, flags, value;
|
1580 |
|
1581 | lookahead = null;
|
1582 | skipComment();
|
1583 | start = index;
|
1584 |
|
1585 | body = scanRegExpBody();
|
1586 | flags = scanRegExpFlags();
|
1587 | value = testRegExp(body.value, flags.value);
|
1588 |
|
1589 | if (extra.tokenize) {
|
1590 | return {
|
1591 | type: Token.RegularExpression,
|
1592 | value: value,
|
1593 | regex: {
|
1594 | pattern: body.value,
|
1595 | flags: flags.value
|
1596 | },
|
1597 | lineNumber: lineNumber,
|
1598 | lineStart: lineStart,
|
1599 | range: [start, index]
|
1600 | };
|
1601 | }
|
1602 |
|
1603 | return {
|
1604 | literal: body.literal + flags.literal,
|
1605 | value: value,
|
1606 | regex: {
|
1607 | pattern: body.value,
|
1608 | flags: flags.value
|
1609 | },
|
1610 | range: [start, index]
|
1611 | };
|
1612 | }
|
1613 |
|
1614 | function isIdentifierName(token) {
|
1615 | return token.type === Token.Identifier ||
|
1616 | token.type === Token.Keyword ||
|
1617 | token.type === Token.BooleanLiteral ||
|
1618 | token.type === Token.NullLiteral;
|
1619 | }
|
1620 |
|
1621 | function advanceSlash() {
|
1622 | var prevToken,
|
1623 | checkToken;
|
1624 |
|
1625 |
|
1626 | prevToken = extra.tokens[extra.tokens.length - 1];
|
1627 | if (!prevToken) {
|
1628 |
|
1629 | return scanRegExp();
|
1630 | }
|
1631 | if (prevToken.type === 'Punctuator') {
|
1632 | if (prevToken.value === ')') {
|
1633 | checkToken = extra.tokens[extra.openParenToken - 1];
|
1634 | if (checkToken &&
|
1635 | checkToken.type === 'Keyword' &&
|
1636 | (checkToken.value === 'if' ||
|
1637 | checkToken.value === 'while' ||
|
1638 | checkToken.value === 'for' ||
|
1639 | checkToken.value === 'with')) {
|
1640 | return scanRegExp();
|
1641 | }
|
1642 | return scanPunctuator();
|
1643 | }
|
1644 | if (prevToken.value === '}') {
|
1645 |
|
1646 |
|
1647 | if (extra.tokens[extra.openCurlyToken - 3] &&
|
1648 | extra.tokens[extra.openCurlyToken - 3].type === 'Keyword') {
|
1649 |
|
1650 | checkToken = extra.tokens[extra.openCurlyToken - 4];
|
1651 | if (!checkToken) {
|
1652 | return scanPunctuator();
|
1653 | }
|
1654 | } else if (extra.tokens[extra.openCurlyToken - 4] &&
|
1655 | extra.tokens[extra.openCurlyToken - 4].type === 'Keyword') {
|
1656 |
|
1657 | checkToken = extra.tokens[extra.openCurlyToken - 5];
|
1658 | if (!checkToken) {
|
1659 | return scanRegExp();
|
1660 | }
|
1661 | } else {
|
1662 | return scanPunctuator();
|
1663 | }
|
1664 |
|
1665 |
|
1666 | if (FnExprTokens.indexOf(checkToken.value) >= 0) {
|
1667 |
|
1668 | return scanPunctuator();
|
1669 | }
|
1670 |
|
1671 | return scanRegExp();
|
1672 | }
|
1673 | return scanRegExp();
|
1674 | }
|
1675 | if (prevToken.type === 'Keyword' && prevToken.value !== 'this') {
|
1676 | return scanRegExp();
|
1677 | }
|
1678 | return scanPunctuator();
|
1679 | }
|
1680 |
|
1681 | function advance() {
|
1682 | var ch;
|
1683 |
|
1684 | if (!state.inJSXChild) {
|
1685 | skipComment();
|
1686 | }
|
1687 |
|
1688 | if (index >= length) {
|
1689 | return {
|
1690 | type: Token.EOF,
|
1691 | lineNumber: lineNumber,
|
1692 | lineStart: lineStart,
|
1693 | range: [index, index]
|
1694 | };
|
1695 | }
|
1696 |
|
1697 | if (state.inJSXChild) {
|
1698 | return advanceJSXChild();
|
1699 | }
|
1700 |
|
1701 | ch = source.charCodeAt(index);
|
1702 |
|
1703 |
|
1704 | if (ch === 40 || ch === 41 || ch === 58) {
|
1705 | return scanPunctuator();
|
1706 | }
|
1707 |
|
1708 |
|
1709 | if (ch === 39 || ch === 34) {
|
1710 | if (state.inJSXTag) {
|
1711 | return scanJSXStringLiteral();
|
1712 | }
|
1713 | return scanStringLiteral();
|
1714 | }
|
1715 |
|
1716 | if (state.inJSXTag && isJSXIdentifierStart(ch)) {
|
1717 | return scanJSXIdentifier();
|
1718 | }
|
1719 |
|
1720 |
|
1721 |
|
1722 | if (ch === 96 || (ch === 125 && state.curlyStack[state.curlyStack.length - 1] === 'template')) {
|
1723 | return scanTemplate();
|
1724 | }
|
1725 | if (isIdentifierStart(ch)) {
|
1726 | return scanIdentifier();
|
1727 | }
|
1728 |
|
1729 |
|
1730 |
|
1731 | if (ch === 46) {
|
1732 | if (isDecimalDigit(source.charCodeAt(index + 1))) {
|
1733 | return scanNumericLiteral();
|
1734 | }
|
1735 | return scanPunctuator();
|
1736 | }
|
1737 |
|
1738 | if (isDecimalDigit(ch)) {
|
1739 | return scanNumericLiteral();
|
1740 | }
|
1741 |
|
1742 |
|
1743 | if (extra.tokenize && ch === 47) {
|
1744 | return advanceSlash();
|
1745 | }
|
1746 |
|
1747 | return scanPunctuator();
|
1748 | }
|
1749 |
|
1750 | function lex() {
|
1751 | var token;
|
1752 |
|
1753 | token = lookahead;
|
1754 | index = token.range[1];
|
1755 | lineNumber = token.lineNumber;
|
1756 | lineStart = token.lineStart;
|
1757 |
|
1758 | lookahead = advance();
|
1759 |
|
1760 | index = token.range[1];
|
1761 | lineNumber = token.lineNumber;
|
1762 | lineStart = token.lineStart;
|
1763 |
|
1764 | return token;
|
1765 | }
|
1766 |
|
1767 | function peek() {
|
1768 | var pos, line, start;
|
1769 |
|
1770 | pos = index;
|
1771 | line = lineNumber;
|
1772 | start = lineStart;
|
1773 | lookahead = advance();
|
1774 | index = pos;
|
1775 | lineNumber = line;
|
1776 | lineStart = start;
|
1777 | }
|
1778 |
|
1779 | function lookahead2() {
|
1780 | var adv, pos, line, start, result;
|
1781 |
|
1782 |
|
1783 |
|
1784 | adv = (typeof extra.advance === 'function') ? extra.advance : advance;
|
1785 |
|
1786 | pos = index;
|
1787 | line = lineNumber;
|
1788 | start = lineStart;
|
1789 |
|
1790 |
|
1791 |
|
1792 | if (lookahead === null) {
|
1793 | lookahead = adv();
|
1794 | }
|
1795 | index = lookahead.range[1];
|
1796 | lineNumber = lookahead.lineNumber;
|
1797 | lineStart = lookahead.lineStart;
|
1798 |
|
1799 |
|
1800 | result = adv();
|
1801 | index = pos;
|
1802 | lineNumber = line;
|
1803 | lineStart = start;
|
1804 |
|
1805 | return result;
|
1806 | }
|
1807 |
|
1808 | function rewind(token) {
|
1809 | index = token.range[0];
|
1810 | lineNumber = token.lineNumber;
|
1811 | lineStart = token.lineStart;
|
1812 | lookahead = token;
|
1813 | }
|
1814 |
|
1815 | function markerCreate() {
|
1816 | if (!extra.loc && !extra.range) {
|
1817 | return undefined;
|
1818 | }
|
1819 | skipComment();
|
1820 | return {offset: index, line: lineNumber, col: index - lineStart};
|
1821 | }
|
1822 |
|
1823 | function markerCreatePreserveWhitespace() {
|
1824 | if (!extra.loc && !extra.range) {
|
1825 | return undefined;
|
1826 | }
|
1827 | return {offset: index, line: lineNumber, col: index - lineStart};
|
1828 | }
|
1829 |
|
1830 | function processComment(node) {
|
1831 | var lastChild,
|
1832 | trailingComments,
|
1833 | bottomRight = extra.bottomRightStack,
|
1834 | last = bottomRight[bottomRight.length - 1];
|
1835 |
|
1836 | if (node.type === Syntax.Program) {
|
1837 |
|
1838 | if (node.body.length > 0) {
|
1839 | return;
|
1840 | }
|
1841 | }
|
1842 |
|
1843 | if (extra.trailingComments.length > 0) {
|
1844 | if (extra.trailingComments[0].range[0] >= node.range[1]) {
|
1845 | trailingComments = extra.trailingComments;
|
1846 | extra.trailingComments = [];
|
1847 | } else {
|
1848 | extra.trailingComments.length = 0;
|
1849 | }
|
1850 | } else {
|
1851 | if (last && last.trailingComments && last.trailingComments[0].range[0] >= node.range[1]) {
|
1852 | trailingComments = last.trailingComments;
|
1853 | delete last.trailingComments;
|
1854 | }
|
1855 | }
|
1856 |
|
1857 |
|
1858 | if (last) {
|
1859 | while (last && last.range[0] >= node.range[0]) {
|
1860 | lastChild = last;
|
1861 | last = bottomRight.pop();
|
1862 | }
|
1863 | }
|
1864 |
|
1865 | if (lastChild) {
|
1866 | if (lastChild.leadingComments && lastChild.leadingComments[lastChild.leadingComments.length - 1].range[1] <= node.range[0]) {
|
1867 | node.leadingComments = lastChild.leadingComments;
|
1868 | delete lastChild.leadingComments;
|
1869 | }
|
1870 | } else if (extra.leadingComments.length > 0 && extra.leadingComments[extra.leadingComments.length - 1].range[1] <= node.range[0]) {
|
1871 | node.leadingComments = extra.leadingComments;
|
1872 | extra.leadingComments = [];
|
1873 | }
|
1874 |
|
1875 | if (trailingComments) {
|
1876 | node.trailingComments = trailingComments;
|
1877 | }
|
1878 |
|
1879 | bottomRight.push(node);
|
1880 | }
|
1881 |
|
1882 | function markerApply(marker, node) {
|
1883 | if (extra.range) {
|
1884 | node.range = [marker.offset, index];
|
1885 | }
|
1886 | if (extra.loc) {
|
1887 | node.loc = {
|
1888 | start: {
|
1889 | line: marker.line,
|
1890 | column: marker.col
|
1891 | },
|
1892 | end: {
|
1893 | line: lineNumber,
|
1894 | column: index - lineStart
|
1895 | }
|
1896 | };
|
1897 | node = delegate.postProcess(node);
|
1898 | }
|
1899 | if (extra.attachComment) {
|
1900 | processComment(node);
|
1901 | }
|
1902 | return node;
|
1903 | }
|
1904 |
|
1905 | SyntaxTreeDelegate = {
|
1906 |
|
1907 | name: 'SyntaxTree',
|
1908 |
|
1909 | postProcess: function (node) {
|
1910 | return node;
|
1911 | },
|
1912 |
|
1913 | createArrayExpression: function (elements) {
|
1914 | return {
|
1915 | type: Syntax.ArrayExpression,
|
1916 | elements: elements
|
1917 | };
|
1918 | },
|
1919 |
|
1920 | createAssignmentExpression: function (operator, left, right) {
|
1921 | return {
|
1922 | type: Syntax.AssignmentExpression,
|
1923 | operator: operator,
|
1924 | left: left,
|
1925 | right: right
|
1926 | };
|
1927 | },
|
1928 |
|
1929 | createBinaryExpression: function (operator, left, right) {
|
1930 | var type = (operator === '||' || operator === '&&') ? Syntax.LogicalExpression :
|
1931 | Syntax.BinaryExpression;
|
1932 | return {
|
1933 | type: type,
|
1934 | operator: operator,
|
1935 | left: left,
|
1936 | right: right
|
1937 | };
|
1938 | },
|
1939 |
|
1940 | createBlockStatement: function (body) {
|
1941 | return {
|
1942 | type: Syntax.BlockStatement,
|
1943 | body: body
|
1944 | };
|
1945 | },
|
1946 |
|
1947 | createBreakStatement: function (label) {
|
1948 | return {
|
1949 | type: Syntax.BreakStatement,
|
1950 | label: label
|
1951 | };
|
1952 | },
|
1953 |
|
1954 | createCallExpression: function (callee, args) {
|
1955 | return {
|
1956 | type: Syntax.CallExpression,
|
1957 | callee: callee,
|
1958 | 'arguments': args
|
1959 | };
|
1960 | },
|
1961 |
|
1962 | createCatchClause: function (param, body) {
|
1963 | return {
|
1964 | type: Syntax.CatchClause,
|
1965 | param: param,
|
1966 | body: body
|
1967 | };
|
1968 | },
|
1969 |
|
1970 | createConditionalExpression: function (test, consequent, alternate) {
|
1971 | return {
|
1972 | type: Syntax.ConditionalExpression,
|
1973 | test: test,
|
1974 | consequent: consequent,
|
1975 | alternate: alternate
|
1976 | };
|
1977 | },
|
1978 |
|
1979 | createContinueStatement: function (label) {
|
1980 | return {
|
1981 | type: Syntax.ContinueStatement,
|
1982 | label: label
|
1983 | };
|
1984 | },
|
1985 |
|
1986 | createDebuggerStatement: function () {
|
1987 | return {
|
1988 | type: Syntax.DebuggerStatement
|
1989 | };
|
1990 | },
|
1991 |
|
1992 | createDoWhileStatement: function (body, test) {
|
1993 | return {
|
1994 | type: Syntax.DoWhileStatement,
|
1995 | body: body,
|
1996 | test: test
|
1997 | };
|
1998 | },
|
1999 |
|
2000 | createEmptyStatement: function () {
|
2001 | return {
|
2002 | type: Syntax.EmptyStatement
|
2003 | };
|
2004 | },
|
2005 |
|
2006 | createExpressionStatement: function (expression) {
|
2007 | return {
|
2008 | type: Syntax.ExpressionStatement,
|
2009 | expression: expression
|
2010 | };
|
2011 | },
|
2012 |
|
2013 | createForStatement: function (init, test, update, body) {
|
2014 | return {
|
2015 | type: Syntax.ForStatement,
|
2016 | init: init,
|
2017 | test: test,
|
2018 | update: update,
|
2019 | body: body
|
2020 | };
|
2021 | },
|
2022 |
|
2023 | createForInStatement: function (left, right, body) {
|
2024 | return {
|
2025 | type: Syntax.ForInStatement,
|
2026 | left: left,
|
2027 | right: right,
|
2028 | body: body,
|
2029 | each: false
|
2030 | };
|
2031 | },
|
2032 |
|
2033 | createForOfStatement: function (left, right, body) {
|
2034 | return {
|
2035 | type: Syntax.ForOfStatement,
|
2036 | left: left,
|
2037 | right: right,
|
2038 | body: body
|
2039 | };
|
2040 | },
|
2041 |
|
2042 | createFunctionDeclaration: function (id, params, defaults, body, rest, generator, expression,
|
2043 | isAsync, returnType, typeParameters) {
|
2044 | var funDecl = {
|
2045 | type: Syntax.FunctionDeclaration,
|
2046 | id: id,
|
2047 | params: params,
|
2048 | defaults: defaults,
|
2049 | body: body,
|
2050 | rest: rest,
|
2051 | generator: generator,
|
2052 | expression: expression,
|
2053 | returnType: returnType,
|
2054 | typeParameters: typeParameters
|
2055 | };
|
2056 |
|
2057 | if (isAsync) {
|
2058 | funDecl.async = true;
|
2059 | }
|
2060 |
|
2061 | return funDecl;
|
2062 | },
|
2063 |
|
2064 | createFunctionExpression: function (id, params, defaults, body, rest, generator, expression,
|
2065 | isAsync, returnType, typeParameters) {
|
2066 | var funExpr = {
|
2067 | type: Syntax.FunctionExpression,
|
2068 | id: id,
|
2069 | params: params,
|
2070 | defaults: defaults,
|
2071 | body: body,
|
2072 | rest: rest,
|
2073 | generator: generator,
|
2074 | expression: expression,
|
2075 | returnType: returnType,
|
2076 | typeParameters: typeParameters
|
2077 | };
|
2078 |
|
2079 | if (isAsync) {
|
2080 | funExpr.async = true;
|
2081 | }
|
2082 |
|
2083 | return funExpr;
|
2084 | },
|
2085 |
|
2086 | createIdentifier: function (name) {
|
2087 | return {
|
2088 | type: Syntax.Identifier,
|
2089 | name: name,
|
2090 |
|
2091 |
|
2092 |
|
2093 |
|
2094 |
|
2095 | typeAnnotation: undefined,
|
2096 | optional: undefined
|
2097 | };
|
2098 | },
|
2099 |
|
2100 | createTypeAnnotation: function (typeAnnotation) {
|
2101 | return {
|
2102 | type: Syntax.TypeAnnotation,
|
2103 | typeAnnotation: typeAnnotation
|
2104 | };
|
2105 | },
|
2106 |
|
2107 | createTypeCast: function (expression, typeAnnotation) {
|
2108 | return {
|
2109 | type: Syntax.TypeCastExpression,
|
2110 | expression: expression,
|
2111 | typeAnnotation: typeAnnotation
|
2112 | };
|
2113 | },
|
2114 |
|
2115 | createFunctionTypeAnnotation: function (params, returnType, rest, typeParameters) {
|
2116 | return {
|
2117 | type: Syntax.FunctionTypeAnnotation,
|
2118 | params: params,
|
2119 | returnType: returnType,
|
2120 | rest: rest,
|
2121 | typeParameters: typeParameters
|
2122 | };
|
2123 | },
|
2124 |
|
2125 | createFunctionTypeParam: function (name, typeAnnotation, optional) {
|
2126 | return {
|
2127 | type: Syntax.FunctionTypeParam,
|
2128 | name: name,
|
2129 | typeAnnotation: typeAnnotation,
|
2130 | optional: optional
|
2131 | };
|
2132 | },
|
2133 |
|
2134 | createNullableTypeAnnotation: function (typeAnnotation) {
|
2135 | return {
|
2136 | type: Syntax.NullableTypeAnnotation,
|
2137 | typeAnnotation: typeAnnotation
|
2138 | };
|
2139 | },
|
2140 |
|
2141 | createArrayTypeAnnotation: function (elementType) {
|
2142 | return {
|
2143 | type: Syntax.ArrayTypeAnnotation,
|
2144 | elementType: elementType
|
2145 | };
|
2146 | },
|
2147 |
|
2148 | createGenericTypeAnnotation: function (id, typeParameters) {
|
2149 | return {
|
2150 | type: Syntax.GenericTypeAnnotation,
|
2151 | id: id,
|
2152 | typeParameters: typeParameters
|
2153 | };
|
2154 | },
|
2155 |
|
2156 | createQualifiedTypeIdentifier: function (qualification, id) {
|
2157 | return {
|
2158 | type: Syntax.QualifiedTypeIdentifier,
|
2159 | qualification: qualification,
|
2160 | id: id
|
2161 | };
|
2162 | },
|
2163 |
|
2164 | createTypeParameterDeclaration: function (params) {
|
2165 | return {
|
2166 | type: Syntax.TypeParameterDeclaration,
|
2167 | params: params
|
2168 | };
|
2169 | },
|
2170 |
|
2171 | createTypeParameterInstantiation: function (params) {
|
2172 | return {
|
2173 | type: Syntax.TypeParameterInstantiation,
|
2174 | params: params
|
2175 | };
|
2176 | },
|
2177 |
|
2178 | createAnyTypeAnnotation: function () {
|
2179 | return {
|
2180 | type: Syntax.AnyTypeAnnotation
|
2181 | };
|
2182 | },
|
2183 |
|
2184 | createBooleanTypeAnnotation: function () {
|
2185 | return {
|
2186 | type: Syntax.BooleanTypeAnnotation
|
2187 | };
|
2188 | },
|
2189 |
|
2190 | createNumberTypeAnnotation: function () {
|
2191 | return {
|
2192 | type: Syntax.NumberTypeAnnotation
|
2193 | };
|
2194 | },
|
2195 |
|
2196 | createStringTypeAnnotation: function () {
|
2197 | return {
|
2198 | type: Syntax.StringTypeAnnotation
|
2199 | };
|
2200 | },
|
2201 |
|
2202 | createStringLiteralTypeAnnotation: function (token) {
|
2203 | return {
|
2204 | type: Syntax.StringLiteralTypeAnnotation,
|
2205 | value: token.value,
|
2206 | raw: source.slice(token.range[0], token.range[1])
|
2207 | };
|
2208 | },
|
2209 |
|
2210 | createVoidTypeAnnotation: function () {
|
2211 | return {
|
2212 | type: Syntax.VoidTypeAnnotation
|
2213 | };
|
2214 | },
|
2215 |
|
2216 | createTypeofTypeAnnotation: function (argument) {
|
2217 | return {
|
2218 | type: Syntax.TypeofTypeAnnotation,
|
2219 | argument: argument
|
2220 | };
|
2221 | },
|
2222 |
|
2223 | createTupleTypeAnnotation: function (types) {
|
2224 | return {
|
2225 | type: Syntax.TupleTypeAnnotation,
|
2226 | types: types
|
2227 | };
|
2228 | },
|
2229 |
|
2230 | createObjectTypeAnnotation: function (properties, indexers, callProperties) {
|
2231 | return {
|
2232 | type: Syntax.ObjectTypeAnnotation,
|
2233 | properties: properties,
|
2234 | indexers: indexers,
|
2235 | callProperties: callProperties
|
2236 | };
|
2237 | },
|
2238 |
|
2239 | createObjectTypeIndexer: function (id, key, value, isStatic) {
|
2240 | return {
|
2241 | type: Syntax.ObjectTypeIndexer,
|
2242 | id: id,
|
2243 | key: key,
|
2244 | value: value,
|
2245 | static: isStatic
|
2246 | };
|
2247 | },
|
2248 |
|
2249 | createObjectTypeCallProperty: function (value, isStatic) {
|
2250 | return {
|
2251 | type: Syntax.ObjectTypeCallProperty,
|
2252 | value: value,
|
2253 | static: isStatic
|
2254 | };
|
2255 | },
|
2256 |
|
2257 | createObjectTypeProperty: function (key, value, optional, isStatic) {
|
2258 | return {
|
2259 | type: Syntax.ObjectTypeProperty,
|
2260 | key: key,
|
2261 | value: value,
|
2262 | optional: optional,
|
2263 | static: isStatic
|
2264 | };
|
2265 | },
|
2266 |
|
2267 | createUnionTypeAnnotation: function (types) {
|
2268 | return {
|
2269 | type: Syntax.UnionTypeAnnotation,
|
2270 | types: types
|
2271 | };
|
2272 | },
|
2273 |
|
2274 | createIntersectionTypeAnnotation: function (types) {
|
2275 | return {
|
2276 | type: Syntax.IntersectionTypeAnnotation,
|
2277 | types: types
|
2278 | };
|
2279 | },
|
2280 |
|
2281 | createTypeAlias: function (id, typeParameters, right) {
|
2282 | return {
|
2283 | type: Syntax.TypeAlias,
|
2284 | id: id,
|
2285 | typeParameters: typeParameters,
|
2286 | right: right
|
2287 | };
|
2288 | },
|
2289 |
|
2290 | createInterface: function (id, typeParameters, body, extended) {
|
2291 | return {
|
2292 | type: Syntax.InterfaceDeclaration,
|
2293 | id: id,
|
2294 | typeParameters: typeParameters,
|
2295 | body: body,
|
2296 | extends: extended
|
2297 | };
|
2298 | },
|
2299 |
|
2300 | createInterfaceExtends: function (id, typeParameters) {
|
2301 | return {
|
2302 | type: Syntax.InterfaceExtends,
|
2303 | id: id,
|
2304 | typeParameters: typeParameters
|
2305 | };
|
2306 | },
|
2307 |
|
2308 | createDeclareFunction: function (id) {
|
2309 | return {
|
2310 | type: Syntax.DeclareFunction,
|
2311 | id: id
|
2312 | };
|
2313 | },
|
2314 |
|
2315 | createDeclareVariable: function (id) {
|
2316 | return {
|
2317 | type: Syntax.DeclareVariable,
|
2318 | id: id
|
2319 | };
|
2320 | },
|
2321 |
|
2322 | createDeclareModule: function (id, body) {
|
2323 | return {
|
2324 | type: Syntax.DeclareModule,
|
2325 | id: id,
|
2326 | body: body
|
2327 | };
|
2328 | },
|
2329 |
|
2330 | createJSXAttribute: function (name, value) {
|
2331 | return {
|
2332 | type: Syntax.JSXAttribute,
|
2333 | name: name,
|
2334 | value: value || null
|
2335 | };
|
2336 | },
|
2337 |
|
2338 | createJSXSpreadAttribute: function (argument) {
|
2339 | return {
|
2340 | type: Syntax.JSXSpreadAttribute,
|
2341 | argument: argument
|
2342 | };
|
2343 | },
|
2344 |
|
2345 | createJSXIdentifier: function (name) {
|
2346 | return {
|
2347 | type: Syntax.JSXIdentifier,
|
2348 | name: name
|
2349 | };
|
2350 | },
|
2351 |
|
2352 | createJSXNamespacedName: function (namespace, name) {
|
2353 | return {
|
2354 | type: Syntax.JSXNamespacedName,
|
2355 | namespace: namespace,
|
2356 | name: name
|
2357 | };
|
2358 | },
|
2359 |
|
2360 | createJSXMemberExpression: function (object, property) {
|
2361 | return {
|
2362 | type: Syntax.JSXMemberExpression,
|
2363 | object: object,
|
2364 | property: property
|
2365 | };
|
2366 | },
|
2367 |
|
2368 | createJSXElement: function (openingElement, closingElement, children) {
|
2369 | return {
|
2370 | type: Syntax.JSXElement,
|
2371 | openingElement: openingElement,
|
2372 | closingElement: closingElement,
|
2373 | children: children
|
2374 | };
|
2375 | },
|
2376 |
|
2377 | createJSXEmptyExpression: function () {
|
2378 | return {
|
2379 | type: Syntax.JSXEmptyExpression
|
2380 | };
|
2381 | },
|
2382 |
|
2383 | createJSXExpressionContainer: function (expression) {
|
2384 | return {
|
2385 | type: Syntax.JSXExpressionContainer,
|
2386 | expression: expression
|
2387 | };
|
2388 | },
|
2389 |
|
2390 | createJSXOpeningElement: function (name, attributes, selfClosing) {
|
2391 | return {
|
2392 | type: Syntax.JSXOpeningElement,
|
2393 | name: name,
|
2394 | selfClosing: selfClosing,
|
2395 | attributes: attributes
|
2396 | };
|
2397 | },
|
2398 |
|
2399 | createJSXClosingElement: function (name) {
|
2400 | return {
|
2401 | type: Syntax.JSXClosingElement,
|
2402 | name: name
|
2403 | };
|
2404 | },
|
2405 |
|
2406 | createIfStatement: function (test, consequent, alternate) {
|
2407 | return {
|
2408 | type: Syntax.IfStatement,
|
2409 | test: test,
|
2410 | consequent: consequent,
|
2411 | alternate: alternate
|
2412 | };
|
2413 | },
|
2414 |
|
2415 | createLabeledStatement: function (label, body) {
|
2416 | return {
|
2417 | type: Syntax.LabeledStatement,
|
2418 | label: label,
|
2419 | body: body
|
2420 | };
|
2421 | },
|
2422 |
|
2423 | createLiteral: function (token) {
|
2424 | var object = {
|
2425 | type: Syntax.Literal,
|
2426 | value: token.value,
|
2427 | raw: source.slice(token.range[0], token.range[1])
|
2428 | };
|
2429 | if (token.regex) {
|
2430 | object.regex = token.regex;
|
2431 | }
|
2432 | return object;
|
2433 | },
|
2434 |
|
2435 | createMemberExpression: function (accessor, object, property) {
|
2436 | return {
|
2437 | type: Syntax.MemberExpression,
|
2438 | computed: accessor === '[',
|
2439 | object: object,
|
2440 | property: property
|
2441 | };
|
2442 | },
|
2443 |
|
2444 | createNewExpression: function (callee, args) {
|
2445 | return {
|
2446 | type: Syntax.NewExpression,
|
2447 | callee: callee,
|
2448 | 'arguments': args
|
2449 | };
|
2450 | },
|
2451 |
|
2452 | createObjectExpression: function (properties) {
|
2453 | return {
|
2454 | type: Syntax.ObjectExpression,
|
2455 | properties: properties
|
2456 | };
|
2457 | },
|
2458 |
|
2459 | createPostfixExpression: function (operator, argument) {
|
2460 | return {
|
2461 | type: Syntax.UpdateExpression,
|
2462 | operator: operator,
|
2463 | argument: argument,
|
2464 | prefix: false
|
2465 | };
|
2466 | },
|
2467 |
|
2468 | createProgram: function (body) {
|
2469 | return {
|
2470 | type: Syntax.Program,
|
2471 | body: body
|
2472 | };
|
2473 | },
|
2474 |
|
2475 | createProperty: function (kind, key, value, method, shorthand, computed) {
|
2476 | return {
|
2477 | type: Syntax.Property,
|
2478 | key: key,
|
2479 | value: value,
|
2480 | kind: kind,
|
2481 | method: method,
|
2482 | shorthand: shorthand,
|
2483 | computed: computed
|
2484 | };
|
2485 | },
|
2486 |
|
2487 | createReturnStatement: function (argument) {
|
2488 | return {
|
2489 | type: Syntax.ReturnStatement,
|
2490 | argument: argument
|
2491 | };
|
2492 | },
|
2493 |
|
2494 | createSequenceExpression: function (expressions) {
|
2495 | return {
|
2496 | type: Syntax.SequenceExpression,
|
2497 | expressions: expressions
|
2498 | };
|
2499 | },
|
2500 |
|
2501 | createSwitchCase: function (test, consequent) {
|
2502 | return {
|
2503 | type: Syntax.SwitchCase,
|
2504 | test: test,
|
2505 | consequent: consequent
|
2506 | };
|
2507 | },
|
2508 |
|
2509 | createSwitchStatement: function (discriminant, cases) {
|
2510 | return {
|
2511 | type: Syntax.SwitchStatement,
|
2512 | discriminant: discriminant,
|
2513 | cases: cases
|
2514 | };
|
2515 | },
|
2516 |
|
2517 | createThisExpression: function () {
|
2518 | return {
|
2519 | type: Syntax.ThisExpression
|
2520 | };
|
2521 | },
|
2522 |
|
2523 | createThrowStatement: function (argument) {
|
2524 | return {
|
2525 | type: Syntax.ThrowStatement,
|
2526 | argument: argument
|
2527 | };
|
2528 | },
|
2529 |
|
2530 | createTryStatement: function (block, guardedHandlers, handlers, finalizer) {
|
2531 | return {
|
2532 | type: Syntax.TryStatement,
|
2533 | block: block,
|
2534 | guardedHandlers: guardedHandlers,
|
2535 | handlers: handlers,
|
2536 | finalizer: finalizer
|
2537 | };
|
2538 | },
|
2539 |
|
2540 | createUnaryExpression: function (operator, argument) {
|
2541 | if (operator === '++' || operator === '--') {
|
2542 | return {
|
2543 | type: Syntax.UpdateExpression,
|
2544 | operator: operator,
|
2545 | argument: argument,
|
2546 | prefix: true
|
2547 | };
|
2548 | }
|
2549 | return {
|
2550 | type: Syntax.UnaryExpression,
|
2551 | operator: operator,
|
2552 | argument: argument,
|
2553 | prefix: true
|
2554 | };
|
2555 | },
|
2556 |
|
2557 | createVariableDeclaration: function (declarations, kind) {
|
2558 | return {
|
2559 | type: Syntax.VariableDeclaration,
|
2560 | declarations: declarations,
|
2561 | kind: kind
|
2562 | };
|
2563 | },
|
2564 |
|
2565 | createVariableDeclarator: function (id, init) {
|
2566 | return {
|
2567 | type: Syntax.VariableDeclarator,
|
2568 | id: id,
|
2569 | init: init
|
2570 | };
|
2571 | },
|
2572 |
|
2573 | createWhileStatement: function (test, body) {
|
2574 | return {
|
2575 | type: Syntax.WhileStatement,
|
2576 | test: test,
|
2577 | body: body
|
2578 | };
|
2579 | },
|
2580 |
|
2581 | createWithStatement: function (object, body) {
|
2582 | return {
|
2583 | type: Syntax.WithStatement,
|
2584 | object: object,
|
2585 | body: body
|
2586 | };
|
2587 | },
|
2588 |
|
2589 | createTemplateElement: function (value, tail) {
|
2590 | return {
|
2591 | type: Syntax.TemplateElement,
|
2592 | value: value,
|
2593 | tail: tail
|
2594 | };
|
2595 | },
|
2596 |
|
2597 | createTemplateLiteral: function (quasis, expressions) {
|
2598 | return {
|
2599 | type: Syntax.TemplateLiteral,
|
2600 | quasis: quasis,
|
2601 | expressions: expressions
|
2602 | };
|
2603 | },
|
2604 |
|
2605 | createSpreadElement: function (argument) {
|
2606 | return {
|
2607 | type: Syntax.SpreadElement,
|
2608 | argument: argument
|
2609 | };
|
2610 | },
|
2611 |
|
2612 | createSpreadProperty: function (argument) {
|
2613 | return {
|
2614 | type: Syntax.SpreadProperty,
|
2615 | argument: argument
|
2616 | };
|
2617 | },
|
2618 |
|
2619 | createTaggedTemplateExpression: function (tag, quasi) {
|
2620 | return {
|
2621 | type: Syntax.TaggedTemplateExpression,
|
2622 | tag: tag,
|
2623 | quasi: quasi
|
2624 | };
|
2625 | },
|
2626 |
|
2627 | createArrowFunctionExpression: function (params, defaults, body, rest, expression, isAsync) {
|
2628 | var arrowExpr = {
|
2629 | type: Syntax.ArrowFunctionExpression,
|
2630 | id: null,
|
2631 | params: params,
|
2632 | defaults: defaults,
|
2633 | body: body,
|
2634 | rest: rest,
|
2635 | generator: false,
|
2636 | expression: expression
|
2637 | };
|
2638 |
|
2639 | if (isAsync) {
|
2640 | arrowExpr.async = true;
|
2641 | }
|
2642 |
|
2643 | return arrowExpr;
|
2644 | },
|
2645 |
|
2646 | createMethodDefinition: function (propertyType, kind, key, value, computed) {
|
2647 | return {
|
2648 | type: Syntax.MethodDefinition,
|
2649 | key: key,
|
2650 | value: value,
|
2651 | kind: kind,
|
2652 | 'static': propertyType === ClassPropertyType.static,
|
2653 | computed: computed
|
2654 | };
|
2655 | },
|
2656 |
|
2657 | createClassProperty: function (key, typeAnnotation, computed, isStatic) {
|
2658 | return {
|
2659 | type: Syntax.ClassProperty,
|
2660 | key: key,
|
2661 | typeAnnotation: typeAnnotation,
|
2662 | computed: computed,
|
2663 | static: isStatic
|
2664 | };
|
2665 | },
|
2666 |
|
2667 | createClassBody: function (body) {
|
2668 | return {
|
2669 | type: Syntax.ClassBody,
|
2670 | body: body
|
2671 | };
|
2672 | },
|
2673 |
|
2674 | createClassImplements: function (id, typeParameters) {
|
2675 | return {
|
2676 | type: Syntax.ClassImplements,
|
2677 | id: id,
|
2678 | typeParameters: typeParameters
|
2679 | };
|
2680 | },
|
2681 |
|
2682 | createClassExpression: function (id, superClass, body, typeParameters, superTypeParameters, implemented) {
|
2683 | return {
|
2684 | type: Syntax.ClassExpression,
|
2685 | id: id,
|
2686 | superClass: superClass,
|
2687 | body: body,
|
2688 | typeParameters: typeParameters,
|
2689 | superTypeParameters: superTypeParameters,
|
2690 | implements: implemented
|
2691 | };
|
2692 | },
|
2693 |
|
2694 | createClassDeclaration: function (id, superClass, body, typeParameters, superTypeParameters, implemented) {
|
2695 | return {
|
2696 | type: Syntax.ClassDeclaration,
|
2697 | id: id,
|
2698 | superClass: superClass,
|
2699 | body: body,
|
2700 | typeParameters: typeParameters,
|
2701 | superTypeParameters: superTypeParameters,
|
2702 | implements: implemented
|
2703 | };
|
2704 | },
|
2705 |
|
2706 | createExportSpecifier: function (id, name) {
|
2707 | return {
|
2708 | type: Syntax.ExportSpecifier,
|
2709 | id: id,
|
2710 | name: name
|
2711 | };
|
2712 | },
|
2713 |
|
2714 | createExportBatchSpecifier: function () {
|
2715 | return {
|
2716 | type: Syntax.ExportBatchSpecifier
|
2717 | };
|
2718 | },
|
2719 |
|
2720 | createImportDefaultSpecifier: function (id) {
|
2721 | return {
|
2722 | type: Syntax.ImportDefaultSpecifier,
|
2723 | id: id
|
2724 | };
|
2725 | },
|
2726 |
|
2727 | createImportNamespaceSpecifier: function (id) {
|
2728 | return {
|
2729 | type: Syntax.ImportNamespaceSpecifier,
|
2730 | id: id
|
2731 | };
|
2732 | },
|
2733 |
|
2734 | createExportDeclaration: function (isDefault, declaration, specifiers, src) {
|
2735 | return {
|
2736 | type: Syntax.ExportDeclaration,
|
2737 | 'default': !!isDefault,
|
2738 | declaration: declaration,
|
2739 | specifiers: specifiers,
|
2740 | source: src
|
2741 | };
|
2742 | },
|
2743 |
|
2744 | createImportSpecifier: function (id, name) {
|
2745 | return {
|
2746 | type: Syntax.ImportSpecifier,
|
2747 | id: id,
|
2748 | name: name
|
2749 | };
|
2750 | },
|
2751 |
|
2752 | createImportDeclaration: function (specifiers, src, isType) {
|
2753 | return {
|
2754 | type: Syntax.ImportDeclaration,
|
2755 | specifiers: specifiers,
|
2756 | source: src,
|
2757 | isType: isType
|
2758 | };
|
2759 | },
|
2760 |
|
2761 | createYieldExpression: function (argument, dlg) {
|
2762 | return {
|
2763 | type: Syntax.YieldExpression,
|
2764 | argument: argument,
|
2765 | delegate: dlg
|
2766 | };
|
2767 | },
|
2768 |
|
2769 | createAwaitExpression: function (argument) {
|
2770 | return {
|
2771 | type: Syntax.AwaitExpression,
|
2772 | argument: argument
|
2773 | };
|
2774 | },
|
2775 |
|
2776 | createComprehensionExpression: function (filter, blocks, body) {
|
2777 | return {
|
2778 | type: Syntax.ComprehensionExpression,
|
2779 | filter: filter,
|
2780 | blocks: blocks,
|
2781 | body: body
|
2782 | };
|
2783 | }
|
2784 |
|
2785 | };
|
2786 |
|
2787 |
|
2788 |
|
2789 | function peekLineTerminator() {
|
2790 | var pos, line, start, found;
|
2791 |
|
2792 | pos = index;
|
2793 | line = lineNumber;
|
2794 | start = lineStart;
|
2795 | skipComment();
|
2796 | found = lineNumber !== line;
|
2797 | index = pos;
|
2798 | lineNumber = line;
|
2799 | lineStart = start;
|
2800 |
|
2801 | return found;
|
2802 | }
|
2803 |
|
2804 |
|
2805 |
|
2806 | function throwError(token, messageFormat) {
|
2807 | var error,
|
2808 | args = Array.prototype.slice.call(arguments, 2),
|
2809 | msg = messageFormat.replace(
|
2810 | /%(\d)/g,
|
2811 | function (whole, idx) {
|
2812 | assert(idx < args.length, 'Message reference must be in range');
|
2813 | return args[idx];
|
2814 | }
|
2815 | );
|
2816 |
|
2817 | if (typeof token.lineNumber === 'number') {
|
2818 | error = new Error('Line ' + token.lineNumber + ': ' + msg);
|
2819 | error.index = token.range[0];
|
2820 | error.lineNumber = token.lineNumber;
|
2821 | error.column = token.range[0] - lineStart + 1;
|
2822 | } else {
|
2823 | error = new Error('Line ' + lineNumber + ': ' + msg);
|
2824 | error.index = index;
|
2825 | error.lineNumber = lineNumber;
|
2826 | error.column = index - lineStart + 1;
|
2827 | }
|
2828 |
|
2829 | error.description = msg;
|
2830 | throw error;
|
2831 | }
|
2832 |
|
2833 | function throwErrorTolerant() {
|
2834 | try {
|
2835 | throwError.apply(null, arguments);
|
2836 | } catch (e) {
|
2837 | if (extra.errors) {
|
2838 | extra.errors.push(e);
|
2839 | } else {
|
2840 | throw e;
|
2841 | }
|
2842 | }
|
2843 | }
|
2844 |
|
2845 |
|
2846 |
|
2847 |
|
2848 | function throwUnexpected(token) {
|
2849 | if (token.type === Token.EOF) {
|
2850 | throwError(token, Messages.UnexpectedEOS);
|
2851 | }
|
2852 |
|
2853 | if (token.type === Token.NumericLiteral) {
|
2854 | throwError(token, Messages.UnexpectedNumber);
|
2855 | }
|
2856 |
|
2857 | if (token.type === Token.StringLiteral || token.type === Token.JSXText) {
|
2858 | throwError(token, Messages.UnexpectedString);
|
2859 | }
|
2860 |
|
2861 | if (token.type === Token.Identifier) {
|
2862 | throwError(token, Messages.UnexpectedIdentifier);
|
2863 | }
|
2864 |
|
2865 | if (token.type === Token.Keyword) {
|
2866 | if (isFutureReservedWord(token.value)) {
|
2867 | throwError(token, Messages.UnexpectedReserved);
|
2868 | } else if (strict && isStrictModeReservedWord(token.value)) {
|
2869 | throwErrorTolerant(token, Messages.StrictReservedWord);
|
2870 | return;
|
2871 | }
|
2872 | throwError(token, Messages.UnexpectedToken, token.value);
|
2873 | }
|
2874 |
|
2875 | if (token.type === Token.Template) {
|
2876 | throwError(token, Messages.UnexpectedTemplate, token.value.raw);
|
2877 | }
|
2878 |
|
2879 |
|
2880 | throwError(token, Messages.UnexpectedToken, token.value);
|
2881 | }
|
2882 |
|
2883 |
|
2884 |
|
2885 |
|
2886 | function expect(value) {
|
2887 | var token = lex();
|
2888 | if (token.type !== Token.Punctuator || token.value !== value) {
|
2889 | throwUnexpected(token);
|
2890 | }
|
2891 | }
|
2892 |
|
2893 |
|
2894 |
|
2895 |
|
2896 | function expectKeyword(keyword, contextual) {
|
2897 | var token = lex();
|
2898 | if (token.type !== (contextual ? Token.Identifier : Token.Keyword) ||
|
2899 | token.value !== keyword) {
|
2900 | throwUnexpected(token);
|
2901 | }
|
2902 | }
|
2903 |
|
2904 |
|
2905 |
|
2906 |
|
2907 | function expectContextualKeyword(keyword) {
|
2908 | return expectKeyword(keyword, true);
|
2909 | }
|
2910 |
|
2911 |
|
2912 |
|
2913 | function match(value) {
|
2914 | return lookahead.type === Token.Punctuator && lookahead.value === value;
|
2915 | }
|
2916 |
|
2917 |
|
2918 |
|
2919 | function matchKeyword(keyword, contextual) {
|
2920 | var expectedType = contextual ? Token.Identifier : Token.Keyword;
|
2921 | return lookahead.type === expectedType && lookahead.value === keyword;
|
2922 | }
|
2923 |
|
2924 |
|
2925 |
|
2926 | function matchContextualKeyword(keyword) {
|
2927 | return matchKeyword(keyword, true);
|
2928 | }
|
2929 |
|
2930 |
|
2931 |
|
2932 | function matchAssign() {
|
2933 | var op;
|
2934 |
|
2935 | if (lookahead.type !== Token.Punctuator) {
|
2936 | return false;
|
2937 | }
|
2938 | op = lookahead.value;
|
2939 | return op === '=' ||
|
2940 | op === '*=' ||
|
2941 | op === '/=' ||
|
2942 | op === '%=' ||
|
2943 | op === '+=' ||
|
2944 | op === '-=' ||
|
2945 | op === '<<=' ||
|
2946 | op === '>>=' ||
|
2947 | op === '>>>=' ||
|
2948 | op === '&=' ||
|
2949 | op === '^=' ||
|
2950 | op === '|=';
|
2951 | }
|
2952 |
|
2953 |
|
2954 |
|
2955 |
|
2956 |
|
2957 | function matchYield() {
|
2958 | return state.yieldAllowed && matchKeyword('yield', !strict);
|
2959 | }
|
2960 |
|
2961 | function matchAsync() {
|
2962 | var backtrackToken = lookahead, matches = false;
|
2963 |
|
2964 | if (matchContextualKeyword('async')) {
|
2965 | lex();
|
2966 | matches = !peekLineTerminator();
|
2967 | rewind(backtrackToken);
|
2968 | }
|
2969 |
|
2970 | return matches;
|
2971 | }
|
2972 |
|
2973 | function matchAwait() {
|
2974 | return state.awaitAllowed && matchContextualKeyword('await');
|
2975 | }
|
2976 |
|
2977 | function consumeSemicolon() {
|
2978 | var line, oldIndex = index, oldLineNumber = lineNumber,
|
2979 | oldLineStart = lineStart, oldLookahead = lookahead;
|
2980 |
|
2981 |
|
2982 | if (source.charCodeAt(index) === 59) {
|
2983 | lex();
|
2984 | return;
|
2985 | }
|
2986 |
|
2987 | line = lineNumber;
|
2988 | skipComment();
|
2989 | if (lineNumber !== line) {
|
2990 | index = oldIndex;
|
2991 | lineNumber = oldLineNumber;
|
2992 | lineStart = oldLineStart;
|
2993 | lookahead = oldLookahead;
|
2994 | return;
|
2995 | }
|
2996 |
|
2997 | if (match(';')) {
|
2998 | lex();
|
2999 | return;
|
3000 | }
|
3001 |
|
3002 | if (lookahead.type !== Token.EOF && !match('}')) {
|
3003 | throwUnexpected(lookahead);
|
3004 | }
|
3005 | }
|
3006 |
|
3007 |
|
3008 |
|
3009 | function isLeftHandSide(expr) {
|
3010 | return expr.type === Syntax.Identifier || expr.type === Syntax.MemberExpression;
|
3011 | }
|
3012 |
|
3013 | function isAssignableLeftHandSide(expr) {
|
3014 | return isLeftHandSide(expr) || expr.type === Syntax.ObjectPattern || expr.type === Syntax.ArrayPattern;
|
3015 | }
|
3016 |
|
3017 |
|
3018 |
|
3019 | function parseArrayInitialiser() {
|
3020 | var elements = [], blocks = [], filter = null, tmp, possiblecomprehension = true,
|
3021 | marker = markerCreate();
|
3022 |
|
3023 | expect('[');
|
3024 | while (!match(']')) {
|
3025 | if (lookahead.value === 'for' &&
|
3026 | lookahead.type === Token.Keyword) {
|
3027 | if (!possiblecomprehension) {
|
3028 | throwError({}, Messages.ComprehensionError);
|
3029 | }
|
3030 | matchKeyword('for');
|
3031 | tmp = parseForStatement({ignoreBody: true});
|
3032 | tmp.of = tmp.type === Syntax.ForOfStatement;
|
3033 | tmp.type = Syntax.ComprehensionBlock;
|
3034 | if (tmp.left.kind) {
|
3035 | throwError({}, Messages.ComprehensionError);
|
3036 | }
|
3037 | blocks.push(tmp);
|
3038 | } else if (lookahead.value === 'if' &&
|
3039 | lookahead.type === Token.Keyword) {
|
3040 | if (!possiblecomprehension) {
|
3041 | throwError({}, Messages.ComprehensionError);
|
3042 | }
|
3043 | expectKeyword('if');
|
3044 | expect('(');
|
3045 | filter = parseExpression();
|
3046 | expect(')');
|
3047 | } else if (lookahead.value === ',' &&
|
3048 | lookahead.type === Token.Punctuator) {
|
3049 | possiblecomprehension = false;
|
3050 | lex();
|
3051 | elements.push(null);
|
3052 | } else {
|
3053 | tmp = parseSpreadOrAssignmentExpression();
|
3054 | elements.push(tmp);
|
3055 | if (tmp && tmp.type === Syntax.SpreadElement) {
|
3056 | if (!match(']')) {
|
3057 | throwError({}, Messages.ElementAfterSpreadElement);
|
3058 | }
|
3059 | } else if (!(match(']') || matchKeyword('for') || matchKeyword('if'))) {
|
3060 | expect(',');
|
3061 | possiblecomprehension = false;
|
3062 | }
|
3063 | }
|
3064 | }
|
3065 |
|
3066 | expect(']');
|
3067 |
|
3068 | if (filter && !blocks.length) {
|
3069 | throwError({}, Messages.ComprehensionRequiresBlock);
|
3070 | }
|
3071 |
|
3072 | if (blocks.length) {
|
3073 | if (elements.length !== 1) {
|
3074 | throwError({}, Messages.ComprehensionError);
|
3075 | }
|
3076 | return markerApply(marker, delegate.createComprehensionExpression(filter, blocks, elements[0]));
|
3077 | }
|
3078 | return markerApply(marker, delegate.createArrayExpression(elements));
|
3079 | }
|
3080 |
|
3081 |
|
3082 |
|
3083 | function parsePropertyFunction(options) {
|
3084 | var previousStrict, previousYieldAllowed, previousAwaitAllowed,
|
3085 | params, defaults, body, marker = markerCreate();
|
3086 |
|
3087 | previousStrict = strict;
|
3088 | previousYieldAllowed = state.yieldAllowed;
|
3089 | state.yieldAllowed = options.generator;
|
3090 | previousAwaitAllowed = state.awaitAllowed;
|
3091 | state.awaitAllowed = options.async;
|
3092 | params = options.params || [];
|
3093 | defaults = options.defaults || [];
|
3094 |
|
3095 | body = parseConciseBody();
|
3096 | if (options.name && strict && isRestrictedWord(params[0].name)) {
|
3097 | throwErrorTolerant(options.name, Messages.StrictParamName);
|
3098 | }
|
3099 | strict = previousStrict;
|
3100 | state.yieldAllowed = previousYieldAllowed;
|
3101 | state.awaitAllowed = previousAwaitAllowed;
|
3102 |
|
3103 | return markerApply(marker, delegate.createFunctionExpression(
|
3104 | null,
|
3105 | params,
|
3106 | defaults,
|
3107 | body,
|
3108 | options.rest || null,
|
3109 | options.generator,
|
3110 | body.type !== Syntax.BlockStatement,
|
3111 | options.async,
|
3112 | options.returnType,
|
3113 | options.typeParameters
|
3114 | ));
|
3115 | }
|
3116 |
|
3117 |
|
3118 | function parsePropertyMethodFunction(options) {
|
3119 | var previousStrict, tmp, method;
|
3120 |
|
3121 | previousStrict = strict;
|
3122 | strict = true;
|
3123 |
|
3124 | tmp = parseParams();
|
3125 |
|
3126 | if (tmp.stricted) {
|
3127 | throwErrorTolerant(tmp.stricted, tmp.message);
|
3128 | }
|
3129 |
|
3130 | method = parsePropertyFunction({
|
3131 | params: tmp.params,
|
3132 | defaults: tmp.defaults,
|
3133 | rest: tmp.rest,
|
3134 | generator: options.generator,
|
3135 | async: options.async,
|
3136 | returnType: tmp.returnType,
|
3137 | typeParameters: options.typeParameters
|
3138 | });
|
3139 |
|
3140 | strict = previousStrict;
|
3141 |
|
3142 | return method;
|
3143 | }
|
3144 |
|
3145 |
|
3146 | function parseObjectPropertyKey() {
|
3147 | var marker = markerCreate(),
|
3148 | token = lex(),
|
3149 | propertyKey,
|
3150 | result;
|
3151 |
|
3152 |
|
3153 |
|
3154 |
|
3155 | if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) {
|
3156 | if (strict && token.octal) {
|
3157 | throwErrorTolerant(token, Messages.StrictOctalLiteral);
|
3158 | }
|
3159 | return markerApply(marker, delegate.createLiteral(token));
|
3160 | }
|
3161 |
|
3162 | if (token.type === Token.Punctuator && token.value === '[') {
|
3163 |
|
3164 |
|
3165 | marker = markerCreate();
|
3166 | propertyKey = parseAssignmentExpression();
|
3167 | result = markerApply(marker, propertyKey);
|
3168 | expect(']');
|
3169 | return result;
|
3170 | }
|
3171 |
|
3172 | return markerApply(marker, delegate.createIdentifier(token.value));
|
3173 | }
|
3174 |
|
3175 | function parseObjectProperty() {
|
3176 | var token, key, id, param, computed,
|
3177 | marker = markerCreate(), returnType, typeParameters;
|
3178 |
|
3179 | token = lookahead;
|
3180 | computed = (token.value === '[' && token.type === Token.Punctuator);
|
3181 |
|
3182 | if (token.type === Token.Identifier || computed || matchAsync()) {
|
3183 | id = parseObjectPropertyKey();
|
3184 |
|
3185 | if (match(':')) {
|
3186 | lex();
|
3187 |
|
3188 | return markerApply(
|
3189 | marker,
|
3190 | delegate.createProperty(
|
3191 | 'init',
|
3192 | id,
|
3193 | parseAssignmentExpression(),
|
3194 | false,
|
3195 | false,
|
3196 | computed
|
3197 | )
|
3198 | );
|
3199 | }
|
3200 |
|
3201 | if (match('(') || match('<')) {
|
3202 | if (match('<')) {
|
3203 | typeParameters = parseTypeParameterDeclaration();
|
3204 | }
|
3205 | return markerApply(
|
3206 | marker,
|
3207 | delegate.createProperty(
|
3208 | 'init',
|
3209 | id,
|
3210 | parsePropertyMethodFunction({
|
3211 | generator: false,
|
3212 | async: false,
|
3213 | typeParameters: typeParameters
|
3214 | }),
|
3215 | true,
|
3216 | false,
|
3217 | computed
|
3218 | )
|
3219 | );
|
3220 | }
|
3221 |
|
3222 |
|
3223 |
|
3224 | if (token.value === 'get') {
|
3225 | computed = (lookahead.value === '[');
|
3226 | key = parseObjectPropertyKey();
|
3227 |
|
3228 | expect('(');
|
3229 | expect(')');
|
3230 | if (match(':')) {
|
3231 | returnType = parseTypeAnnotation();
|
3232 | }
|
3233 |
|
3234 | return markerApply(
|
3235 | marker,
|
3236 | delegate.createProperty(
|
3237 | 'get',
|
3238 | key,
|
3239 | parsePropertyFunction({
|
3240 | generator: false,
|
3241 | async: false,
|
3242 | returnType: returnType
|
3243 | }),
|
3244 | false,
|
3245 | false,
|
3246 | computed
|
3247 | )
|
3248 | );
|
3249 | }
|
3250 |
|
3251 | if (token.value === 'set') {
|
3252 | computed = (lookahead.value === '[');
|
3253 | key = parseObjectPropertyKey();
|
3254 |
|
3255 | expect('(');
|
3256 | token = lookahead;
|
3257 | param = [ parseTypeAnnotatableIdentifier() ];
|
3258 | expect(')');
|
3259 | if (match(':')) {
|
3260 | returnType = parseTypeAnnotation();
|
3261 | }
|
3262 |
|
3263 | return markerApply(
|
3264 | marker,
|
3265 | delegate.createProperty(
|
3266 | 'set',
|
3267 | key,
|
3268 | parsePropertyFunction({
|
3269 | params: param,
|
3270 | generator: false,
|
3271 | async: false,
|
3272 | name: token,
|
3273 | returnType: returnType
|
3274 | }),
|
3275 | false,
|
3276 | false,
|
3277 | computed
|
3278 | )
|
3279 | );
|
3280 | }
|
3281 |
|
3282 | if (token.value === 'async') {
|
3283 | computed = (lookahead.value === '[');
|
3284 | key = parseObjectPropertyKey();
|
3285 |
|
3286 | if (match('<')) {
|
3287 | typeParameters = parseTypeParameterDeclaration();
|
3288 | }
|
3289 |
|
3290 | return markerApply(
|
3291 | marker,
|
3292 | delegate.createProperty(
|
3293 | 'init',
|
3294 | key,
|
3295 | parsePropertyMethodFunction({
|
3296 | generator: false,
|
3297 | async: true,
|
3298 | typeParameters: typeParameters
|
3299 | }),
|
3300 | true,
|
3301 | false,
|
3302 | computed
|
3303 | )
|
3304 | );
|
3305 | }
|
3306 |
|
3307 | if (computed) {
|
3308 |
|
3309 | throwUnexpected(lookahead);
|
3310 | }
|
3311 |
|
3312 | return markerApply(
|
3313 | marker,
|
3314 | delegate.createProperty('init', id, id, false, true, false)
|
3315 | );
|
3316 | }
|
3317 |
|
3318 | if (token.type === Token.EOF || token.type === Token.Punctuator) {
|
3319 | if (!match('*')) {
|
3320 | throwUnexpected(token);
|
3321 | }
|
3322 | lex();
|
3323 |
|
3324 | computed = (lookahead.type === Token.Punctuator && lookahead.value === '[');
|
3325 |
|
3326 | id = parseObjectPropertyKey();
|
3327 |
|
3328 | if (match('<')) {
|
3329 | typeParameters = parseTypeParameterDeclaration();
|
3330 | }
|
3331 |
|
3332 | if (!match('(')) {
|
3333 | throwUnexpected(lex());
|
3334 | }
|
3335 |
|
3336 | return markerApply(marker, delegate.createProperty(
|
3337 | 'init',
|
3338 | id,
|
3339 | parsePropertyMethodFunction({
|
3340 | generator: true,
|
3341 | typeParameters: typeParameters
|
3342 | }),
|
3343 | true,
|
3344 | false,
|
3345 | computed
|
3346 | ));
|
3347 | }
|
3348 | key = parseObjectPropertyKey();
|
3349 | if (match(':')) {
|
3350 | lex();
|
3351 | return markerApply(marker, delegate.createProperty('init', key, parseAssignmentExpression(), false, false, false));
|
3352 | }
|
3353 | if (match('(') || match('<')) {
|
3354 | if (match('<')) {
|
3355 | typeParameters = parseTypeParameterDeclaration();
|
3356 | }
|
3357 | return markerApply(marker, delegate.createProperty(
|
3358 | 'init',
|
3359 | key,
|
3360 | parsePropertyMethodFunction({
|
3361 | generator: false,
|
3362 | typeParameters: typeParameters
|
3363 | }),
|
3364 | true,
|
3365 | false,
|
3366 | false
|
3367 | ));
|
3368 | }
|
3369 | throwUnexpected(lex());
|
3370 | }
|
3371 |
|
3372 | function parseObjectSpreadProperty() {
|
3373 | var marker = markerCreate();
|
3374 | expect('...');
|
3375 | return markerApply(marker, delegate.createSpreadProperty(parseAssignmentExpression()));
|
3376 | }
|
3377 |
|
3378 | function getFieldName(key) {
|
3379 | var toString = String;
|
3380 | if (key.type === Syntax.Identifier) {
|
3381 | return key.name;
|
3382 | }
|
3383 | return toString(key.value);
|
3384 | }
|
3385 |
|
3386 | function parseObjectInitialiser() {
|
3387 | var properties = [], property, name, kind, storedKind, map = new StringMap(),
|
3388 | marker = markerCreate(), toString = String;
|
3389 |
|
3390 | expect('{');
|
3391 |
|
3392 | while (!match('}')) {
|
3393 | if (match('...')) {
|
3394 | property = parseObjectSpreadProperty();
|
3395 | } else {
|
3396 | property = parseObjectProperty();
|
3397 |
|
3398 | if (property.key.type === Syntax.Identifier) {
|
3399 | name = property.key.name;
|
3400 | } else {
|
3401 | name = toString(property.key.value);
|
3402 | }
|
3403 | kind = (property.kind === 'init') ? PropertyKind.Data : (property.kind === 'get') ? PropertyKind.Get : PropertyKind.Set;
|
3404 |
|
3405 | if (map.has(name)) {
|
3406 | storedKind = map.get(name);
|
3407 | if (storedKind === PropertyKind.Data) {
|
3408 | if (strict && kind === PropertyKind.Data) {
|
3409 | throwErrorTolerant({}, Messages.StrictDuplicateProperty);
|
3410 | } else if (kind !== PropertyKind.Data) {
|
3411 | throwErrorTolerant({}, Messages.AccessorDataProperty);
|
3412 | }
|
3413 | } else {
|
3414 | if (kind === PropertyKind.Data) {
|
3415 | throwErrorTolerant({}, Messages.AccessorDataProperty);
|
3416 | } else if (storedKind & kind) {
|
3417 | throwErrorTolerant({}, Messages.AccessorGetSet);
|
3418 | }
|
3419 | }
|
3420 | map.set(name, storedKind | kind);
|
3421 | } else {
|
3422 | map.set(name, kind);
|
3423 | }
|
3424 | }
|
3425 |
|
3426 | properties.push(property);
|
3427 |
|
3428 | if (!match('}')) {
|
3429 | expect(',');
|
3430 | }
|
3431 | }
|
3432 |
|
3433 | expect('}');
|
3434 |
|
3435 | return markerApply(marker, delegate.createObjectExpression(properties));
|
3436 | }
|
3437 |
|
3438 | function parseTemplateElement(option) {
|
3439 | var marker, token;
|
3440 |
|
3441 | if (lookahead.type !== Token.Template || (option.head && !lookahead.head)) {
|
3442 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
3443 | }
|
3444 |
|
3445 | marker = markerCreate();
|
3446 | token = lex();
|
3447 |
|
3448 | if (strict && token.octal) {
|
3449 | throwError(token, Messages.StrictOctalLiteral);
|
3450 | }
|
3451 | return markerApply(marker, delegate.createTemplateElement({ raw: token.value.raw, cooked: token.value.cooked }, token.tail));
|
3452 | }
|
3453 |
|
3454 | function parseTemplateLiteral() {
|
3455 | var quasi, quasis, expressions, marker = markerCreate();
|
3456 |
|
3457 | quasi = parseTemplateElement({ head: true });
|
3458 | quasis = [ quasi ];
|
3459 | expressions = [];
|
3460 |
|
3461 | while (!quasi.tail) {
|
3462 | expressions.push(parseExpression());
|
3463 | quasi = parseTemplateElement({ head: false });
|
3464 | quasis.push(quasi);
|
3465 | }
|
3466 |
|
3467 | return markerApply(marker, delegate.createTemplateLiteral(quasis, expressions));
|
3468 | }
|
3469 |
|
3470 |
|
3471 |
|
3472 | function parseGroupExpression() {
|
3473 | var expr, marker, typeAnnotation;
|
3474 |
|
3475 | expect('(');
|
3476 |
|
3477 | ++state.parenthesizedCount;
|
3478 |
|
3479 | marker = markerCreate();
|
3480 |
|
3481 | expr = parseExpression();
|
3482 |
|
3483 | if (match(':')) {
|
3484 | typeAnnotation = parseTypeAnnotation();
|
3485 | expr = markerApply(marker, delegate.createTypeCast(
|
3486 | expr,
|
3487 | typeAnnotation
|
3488 | ));
|
3489 | }
|
3490 |
|
3491 | expect(')');
|
3492 |
|
3493 | return expr;
|
3494 | }
|
3495 |
|
3496 | function matchAsyncFuncExprOrDecl() {
|
3497 | var token;
|
3498 |
|
3499 | if (matchAsync()) {
|
3500 | token = lookahead2();
|
3501 | if (token.type === Token.Keyword && token.value === 'function') {
|
3502 | return true;
|
3503 | }
|
3504 | }
|
3505 |
|
3506 | return false;
|
3507 | }
|
3508 |
|
3509 |
|
3510 |
|
3511 | function parsePrimaryExpression() {
|
3512 | var marker, type, token, expr;
|
3513 |
|
3514 | type = lookahead.type;
|
3515 |
|
3516 | if (type === Token.Identifier) {
|
3517 | marker = markerCreate();
|
3518 | return markerApply(marker, delegate.createIdentifier(lex().value));
|
3519 | }
|
3520 |
|
3521 | if (type === Token.StringLiteral || type === Token.NumericLiteral) {
|
3522 | if (strict && lookahead.octal) {
|
3523 | throwErrorTolerant(lookahead, Messages.StrictOctalLiteral);
|
3524 | }
|
3525 | marker = markerCreate();
|
3526 | return markerApply(marker, delegate.createLiteral(lex()));
|
3527 | }
|
3528 |
|
3529 | if (type === Token.Keyword) {
|
3530 | if (matchKeyword('this')) {
|
3531 | marker = markerCreate();
|
3532 | lex();
|
3533 | return markerApply(marker, delegate.createThisExpression());
|
3534 | }
|
3535 |
|
3536 | if (matchKeyword('function')) {
|
3537 | return parseFunctionExpression();
|
3538 | }
|
3539 |
|
3540 | if (matchKeyword('class')) {
|
3541 | return parseClassExpression();
|
3542 | }
|
3543 |
|
3544 | if (matchKeyword('super')) {
|
3545 | marker = markerCreate();
|
3546 | lex();
|
3547 | return markerApply(marker, delegate.createIdentifier('super'));
|
3548 | }
|
3549 | }
|
3550 |
|
3551 | if (type === Token.BooleanLiteral) {
|
3552 | marker = markerCreate();
|
3553 | token = lex();
|
3554 | token.value = (token.value === 'true');
|
3555 | return markerApply(marker, delegate.createLiteral(token));
|
3556 | }
|
3557 |
|
3558 | if (type === Token.NullLiteral) {
|
3559 | marker = markerCreate();
|
3560 | token = lex();
|
3561 | token.value = null;
|
3562 | return markerApply(marker, delegate.createLiteral(token));
|
3563 | }
|
3564 |
|
3565 | if (match('[')) {
|
3566 | return parseArrayInitialiser();
|
3567 | }
|
3568 |
|
3569 | if (match('{')) {
|
3570 | return parseObjectInitialiser();
|
3571 | }
|
3572 |
|
3573 | if (match('(')) {
|
3574 | return parseGroupExpression();
|
3575 | }
|
3576 |
|
3577 | if (match('/') || match('/=')) {
|
3578 | marker = markerCreate();
|
3579 | expr = delegate.createLiteral(scanRegExp());
|
3580 | peek();
|
3581 | return markerApply(marker, expr);
|
3582 | }
|
3583 |
|
3584 | if (type === Token.Template) {
|
3585 | return parseTemplateLiteral();
|
3586 | }
|
3587 |
|
3588 | if (match('<')) {
|
3589 | return parseJSXElement();
|
3590 | }
|
3591 |
|
3592 | throwUnexpected(lex());
|
3593 | }
|
3594 |
|
3595 |
|
3596 |
|
3597 | function parseArguments() {
|
3598 | var args = [], arg;
|
3599 |
|
3600 | expect('(');
|
3601 |
|
3602 | if (!match(')')) {
|
3603 | while (index < length) {
|
3604 | arg = parseSpreadOrAssignmentExpression();
|
3605 | args.push(arg);
|
3606 |
|
3607 | if (arg.type === Syntax.SpreadElement) {
|
3608 | if (match(')')) {
|
3609 | break;
|
3610 | } else {
|
3611 | throwError({}, Messages.ElementAfterSpreadElement);
|
3612 | }
|
3613 | }
|
3614 |
|
3615 | if (match(')')) {
|
3616 | break;
|
3617 | } else {
|
3618 | expect(',');
|
3619 | if (match(')')) {
|
3620 | break;
|
3621 | }
|
3622 | }
|
3623 | }
|
3624 | }
|
3625 |
|
3626 | expect(')');
|
3627 |
|
3628 | return args;
|
3629 | }
|
3630 |
|
3631 | function parseSpreadOrAssignmentExpression() {
|
3632 | if (match('...')) {
|
3633 | var marker = markerCreate();
|
3634 | lex();
|
3635 | return markerApply(marker, delegate.createSpreadElement(parseAssignmentExpression()));
|
3636 | }
|
3637 | return parseAssignmentExpression();
|
3638 | }
|
3639 |
|
3640 | function parseNonComputedProperty() {
|
3641 | var marker = markerCreate(),
|
3642 | token = lex();
|
3643 |
|
3644 | if (!isIdentifierName(token)) {
|
3645 | throwUnexpected(token);
|
3646 | }
|
3647 |
|
3648 | return markerApply(marker, delegate.createIdentifier(token.value));
|
3649 | }
|
3650 |
|
3651 | function parseNonComputedMember() {
|
3652 | expect('.');
|
3653 |
|
3654 | return parseNonComputedProperty();
|
3655 | }
|
3656 |
|
3657 | function parseComputedMember() {
|
3658 | var expr;
|
3659 |
|
3660 | expect('[');
|
3661 |
|
3662 | expr = parseExpression();
|
3663 |
|
3664 | expect(']');
|
3665 |
|
3666 | return expr;
|
3667 | }
|
3668 |
|
3669 | function parseNewExpression() {
|
3670 | var callee, args, marker = markerCreate();
|
3671 |
|
3672 | expectKeyword('new');
|
3673 | callee = parseLeftHandSideExpression();
|
3674 | args = match('(') ? parseArguments() : [];
|
3675 |
|
3676 | return markerApply(marker, delegate.createNewExpression(callee, args));
|
3677 | }
|
3678 |
|
3679 | function parseLeftHandSideExpressionAllowCall() {
|
3680 | var expr, args, marker = markerCreate();
|
3681 |
|
3682 | expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
|
3683 |
|
3684 | while (match('.') || match('[') || match('(') || (lookahead.type === Token.Template && lookahead.head)) {
|
3685 | if (match('(')) {
|
3686 | args = parseArguments();
|
3687 | expr = markerApply(marker, delegate.createCallExpression(expr, args));
|
3688 | } else if (match('[')) {
|
3689 | expr = markerApply(marker, delegate.createMemberExpression('[', expr, parseComputedMember()));
|
3690 | } else if (match('.')) {
|
3691 | expr = markerApply(marker, delegate.createMemberExpression('.', expr, parseNonComputedMember()));
|
3692 | } else {
|
3693 | expr = markerApply(marker, delegate.createTaggedTemplateExpression(expr, parseTemplateLiteral()));
|
3694 | }
|
3695 | }
|
3696 |
|
3697 | return expr;
|
3698 | }
|
3699 |
|
3700 | function parseLeftHandSideExpression() {
|
3701 | var expr, marker = markerCreate();
|
3702 |
|
3703 | expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
|
3704 |
|
3705 | while (match('.') || match('[') || (lookahead.type === Token.Template && lookahead.head)) {
|
3706 | if (match('[')) {
|
3707 | expr = markerApply(marker, delegate.createMemberExpression('[', expr, parseComputedMember()));
|
3708 | } else if (match('.')) {
|
3709 | expr = markerApply(marker, delegate.createMemberExpression('.', expr, parseNonComputedMember()));
|
3710 | } else {
|
3711 | expr = markerApply(marker, delegate.createTaggedTemplateExpression(expr, parseTemplateLiteral()));
|
3712 | }
|
3713 | }
|
3714 |
|
3715 | return expr;
|
3716 | }
|
3717 |
|
3718 |
|
3719 |
|
3720 | function parsePostfixExpression() {
|
3721 | var marker = markerCreate(),
|
3722 | expr = parseLeftHandSideExpressionAllowCall(),
|
3723 | token;
|
3724 |
|
3725 | if (lookahead.type !== Token.Punctuator) {
|
3726 | return expr;
|
3727 | }
|
3728 |
|
3729 | if ((match('++') || match('--')) && !peekLineTerminator()) {
|
3730 |
|
3731 | if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
|
3732 | throwErrorTolerant({}, Messages.StrictLHSPostfix);
|
3733 | }
|
3734 |
|
3735 | if (!isLeftHandSide(expr)) {
|
3736 | throwError({}, Messages.InvalidLHSInAssignment);
|
3737 | }
|
3738 |
|
3739 | token = lex();
|
3740 | expr = markerApply(marker, delegate.createPostfixExpression(token.value, expr));
|
3741 | }
|
3742 |
|
3743 | return expr;
|
3744 | }
|
3745 |
|
3746 |
|
3747 |
|
3748 | function parseUnaryExpression() {
|
3749 | var marker, token, expr;
|
3750 |
|
3751 | if (lookahead.type !== Token.Punctuator && lookahead.type !== Token.Keyword) {
|
3752 | return parsePostfixExpression();
|
3753 | }
|
3754 |
|
3755 | if (match('++') || match('--')) {
|
3756 | marker = markerCreate();
|
3757 | token = lex();
|
3758 | expr = parseUnaryExpression();
|
3759 |
|
3760 | if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
|
3761 | throwErrorTolerant({}, Messages.StrictLHSPrefix);
|
3762 | }
|
3763 |
|
3764 | if (!isLeftHandSide(expr)) {
|
3765 | throwError({}, Messages.InvalidLHSInAssignment);
|
3766 | }
|
3767 |
|
3768 | return markerApply(marker, delegate.createUnaryExpression(token.value, expr));
|
3769 | }
|
3770 |
|
3771 | if (match('+') || match('-') || match('~') || match('!')) {
|
3772 | marker = markerCreate();
|
3773 | token = lex();
|
3774 | expr = parseUnaryExpression();
|
3775 | return markerApply(marker, delegate.createUnaryExpression(token.value, expr));
|
3776 | }
|
3777 |
|
3778 | if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
|
3779 | marker = markerCreate();
|
3780 | token = lex();
|
3781 | expr = parseUnaryExpression();
|
3782 | expr = markerApply(marker, delegate.createUnaryExpression(token.value, expr));
|
3783 | if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) {
|
3784 | throwErrorTolerant({}, Messages.StrictDelete);
|
3785 | }
|
3786 | return expr;
|
3787 | }
|
3788 |
|
3789 | return parsePostfixExpression();
|
3790 | }
|
3791 |
|
3792 | function binaryPrecedence(token, allowIn) {
|
3793 | var prec = 0;
|
3794 |
|
3795 | if (token.type !== Token.Punctuator && token.type !== Token.Keyword) {
|
3796 | return 0;
|
3797 | }
|
3798 |
|
3799 | switch (token.value) {
|
3800 | case '||':
|
3801 | prec = 1;
|
3802 | break;
|
3803 |
|
3804 | case '&&':
|
3805 | prec = 2;
|
3806 | break;
|
3807 |
|
3808 | case '|':
|
3809 | prec = 3;
|
3810 | break;
|
3811 |
|
3812 | case '^':
|
3813 | prec = 4;
|
3814 | break;
|
3815 |
|
3816 | case '&':
|
3817 | prec = 5;
|
3818 | break;
|
3819 |
|
3820 | case '==':
|
3821 | case '!=':
|
3822 | case '===':
|
3823 | case '!==':
|
3824 | prec = 6;
|
3825 | break;
|
3826 |
|
3827 | case '<':
|
3828 | case '>':
|
3829 | case '<=':
|
3830 | case '>=':
|
3831 | case 'instanceof':
|
3832 | prec = 7;
|
3833 | break;
|
3834 |
|
3835 | case 'in':
|
3836 | prec = allowIn ? 7 : 0;
|
3837 | break;
|
3838 |
|
3839 | case '<<':
|
3840 | case '>>':
|
3841 | case '>>>':
|
3842 | prec = 8;
|
3843 | break;
|
3844 |
|
3845 | case '+':
|
3846 | case '-':
|
3847 | prec = 9;
|
3848 | break;
|
3849 |
|
3850 | case '*':
|
3851 | case '/':
|
3852 | case '%':
|
3853 | prec = 11;
|
3854 | break;
|
3855 |
|
3856 | default:
|
3857 | break;
|
3858 | }
|
3859 |
|
3860 | return prec;
|
3861 | }
|
3862 |
|
3863 |
|
3864 |
|
3865 |
|
3866 |
|
3867 |
|
3868 |
|
3869 |
|
3870 |
|
3871 | function parseBinaryExpression() {
|
3872 | var expr, token, prec, previousAllowIn, stack, right, operator, left, i,
|
3873 | marker, markers;
|
3874 |
|
3875 | previousAllowIn = state.allowIn;
|
3876 | state.allowIn = true;
|
3877 |
|
3878 | marker = markerCreate();
|
3879 | left = parseUnaryExpression();
|
3880 |
|
3881 | token = lookahead;
|
3882 | prec = binaryPrecedence(token, previousAllowIn);
|
3883 | if (prec === 0) {
|
3884 | return left;
|
3885 | }
|
3886 | token.prec = prec;
|
3887 | lex();
|
3888 |
|
3889 | markers = [marker, markerCreate()];
|
3890 | right = parseUnaryExpression();
|
3891 |
|
3892 | stack = [left, token, right];
|
3893 |
|
3894 | while ((prec = binaryPrecedence(lookahead, previousAllowIn)) > 0) {
|
3895 |
|
3896 |
|
3897 | while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {
|
3898 | right = stack.pop();
|
3899 | operator = stack.pop().value;
|
3900 | left = stack.pop();
|
3901 | expr = delegate.createBinaryExpression(operator, left, right);
|
3902 | markers.pop();
|
3903 | marker = markers.pop();
|
3904 | markerApply(marker, expr);
|
3905 | stack.push(expr);
|
3906 | markers.push(marker);
|
3907 | }
|
3908 |
|
3909 |
|
3910 | token = lex();
|
3911 | token.prec = prec;
|
3912 | stack.push(token);
|
3913 | markers.push(markerCreate());
|
3914 | expr = parseUnaryExpression();
|
3915 | stack.push(expr);
|
3916 | }
|
3917 |
|
3918 | state.allowIn = previousAllowIn;
|
3919 |
|
3920 |
|
3921 | i = stack.length - 1;
|
3922 | expr = stack[i];
|
3923 | markers.pop();
|
3924 | while (i > 1) {
|
3925 | expr = delegate.createBinaryExpression(stack[i - 1].value, stack[i - 2], expr);
|
3926 | i -= 2;
|
3927 | marker = markers.pop();
|
3928 | markerApply(marker, expr);
|
3929 | }
|
3930 |
|
3931 | return expr;
|
3932 | }
|
3933 |
|
3934 |
|
3935 |
|
3936 |
|
3937 | function parseConditionalExpression() {
|
3938 | var expr, previousAllowIn, consequent, alternate, marker = markerCreate();
|
3939 | expr = parseBinaryExpression();
|
3940 |
|
3941 | if (match('?')) {
|
3942 | lex();
|
3943 | previousAllowIn = state.allowIn;
|
3944 | state.allowIn = true;
|
3945 | consequent = parseAssignmentExpression();
|
3946 | state.allowIn = previousAllowIn;
|
3947 | expect(':');
|
3948 | alternate = parseAssignmentExpression();
|
3949 |
|
3950 | expr = markerApply(marker, delegate.createConditionalExpression(expr, consequent, alternate));
|
3951 | }
|
3952 |
|
3953 | return expr;
|
3954 | }
|
3955 |
|
3956 |
|
3957 |
|
3958 |
|
3959 |
|
3960 | function reinterpretAsAssignmentBindingPattern(expr) {
|
3961 | var i, len, property, element;
|
3962 |
|
3963 | if (expr.type === Syntax.ObjectExpression) {
|
3964 | expr.type = Syntax.ObjectPattern;
|
3965 | for (i = 0, len = expr.properties.length; i < len; i += 1) {
|
3966 | property = expr.properties[i];
|
3967 | if (property.type === Syntax.SpreadProperty) {
|
3968 | if (i < len - 1) {
|
3969 | throwError({}, Messages.PropertyAfterSpreadProperty);
|
3970 | }
|
3971 | reinterpretAsAssignmentBindingPattern(property.argument);
|
3972 | } else {
|
3973 | if (property.kind !== 'init') {
|
3974 | throwError({}, Messages.InvalidLHSInAssignment);
|
3975 | }
|
3976 | reinterpretAsAssignmentBindingPattern(property.value);
|
3977 | }
|
3978 | }
|
3979 | } else if (expr.type === Syntax.ArrayExpression) {
|
3980 | expr.type = Syntax.ArrayPattern;
|
3981 | for (i = 0, len = expr.elements.length; i < len; i += 1) {
|
3982 | element = expr.elements[i];
|
3983 |
|
3984 | if (element) {
|
3985 | reinterpretAsAssignmentBindingPattern(element);
|
3986 | }
|
3987 | }
|
3988 | } else if (expr.type === Syntax.Identifier) {
|
3989 | if (isRestrictedWord(expr.name)) {
|
3990 | throwError({}, Messages.InvalidLHSInAssignment);
|
3991 | }
|
3992 | } else if (expr.type === Syntax.SpreadElement) {
|
3993 | reinterpretAsAssignmentBindingPattern(expr.argument);
|
3994 | if (expr.argument.type === Syntax.ObjectPattern) {
|
3995 | throwError({}, Messages.ObjectPatternAsSpread);
|
3996 | }
|
3997 | } else {
|
3998 |
|
3999 | if (expr.type !== Syntax.MemberExpression && expr.type !== Syntax.CallExpression && expr.type !== Syntax.NewExpression) {
|
4000 | throwError({}, Messages.InvalidLHSInAssignment);
|
4001 | }
|
4002 | }
|
4003 | }
|
4004 |
|
4005 |
|
4006 |
|
4007 | function reinterpretAsDestructuredParameter(options, expr) {
|
4008 | var i, len, property, element;
|
4009 |
|
4010 | if (expr.type === Syntax.ObjectExpression) {
|
4011 | expr.type = Syntax.ObjectPattern;
|
4012 | for (i = 0, len = expr.properties.length; i < len; i += 1) {
|
4013 | property = expr.properties[i];
|
4014 | if (property.type === Syntax.SpreadProperty) {
|
4015 | if (i < len - 1) {
|
4016 | throwError({}, Messages.PropertyAfterSpreadProperty);
|
4017 | }
|
4018 | reinterpretAsDestructuredParameter(options, property.argument);
|
4019 | } else {
|
4020 | if (property.kind !== 'init') {
|
4021 | throwError({}, Messages.InvalidLHSInFormalsList);
|
4022 | }
|
4023 | reinterpretAsDestructuredParameter(options, property.value);
|
4024 | }
|
4025 | }
|
4026 | } else if (expr.type === Syntax.ArrayExpression) {
|
4027 | expr.type = Syntax.ArrayPattern;
|
4028 | for (i = 0, len = expr.elements.length; i < len; i += 1) {
|
4029 | element = expr.elements[i];
|
4030 | if (element) {
|
4031 | reinterpretAsDestructuredParameter(options, element);
|
4032 | }
|
4033 | }
|
4034 | } else if (expr.type === Syntax.Identifier) {
|
4035 | validateParam(options, expr, expr.name);
|
4036 | } else if (expr.type === Syntax.SpreadElement) {
|
4037 |
|
4038 | if (expr.argument.type !== Syntax.Identifier) {
|
4039 | throwError({}, Messages.InvalidLHSInFormalsList);
|
4040 | }
|
4041 | validateParam(options, expr.argument, expr.argument.name);
|
4042 | } else {
|
4043 | throwError({}, Messages.InvalidLHSInFormalsList);
|
4044 | }
|
4045 | }
|
4046 |
|
4047 | function reinterpretAsCoverFormalsList(expressions) {
|
4048 | var i, len, param, params, defaults, defaultCount, options, rest;
|
4049 |
|
4050 | params = [];
|
4051 | defaults = [];
|
4052 | defaultCount = 0;
|
4053 | rest = null;
|
4054 | options = {
|
4055 | paramSet: new StringMap()
|
4056 | };
|
4057 |
|
4058 | for (i = 0, len = expressions.length; i < len; i += 1) {
|
4059 | param = expressions[i];
|
4060 | if (param.type === Syntax.Identifier) {
|
4061 | params.push(param);
|
4062 | defaults.push(null);
|
4063 | validateParam(options, param, param.name);
|
4064 | } else if (param.type === Syntax.ObjectExpression || param.type === Syntax.ArrayExpression) {
|
4065 | reinterpretAsDestructuredParameter(options, param);
|
4066 | params.push(param);
|
4067 | defaults.push(null);
|
4068 | } else if (param.type === Syntax.SpreadElement) {
|
4069 | assert(i === len - 1, 'It is guaranteed that SpreadElement is last element by parseExpression');
|
4070 | if (param.argument.type !== Syntax.Identifier) {
|
4071 | throwError({}, Messages.InvalidLHSInFormalsList);
|
4072 | }
|
4073 | reinterpretAsDestructuredParameter(options, param.argument);
|
4074 | rest = param.argument;
|
4075 | } else if (param.type === Syntax.AssignmentExpression) {
|
4076 | params.push(param.left);
|
4077 | defaults.push(param.right);
|
4078 | ++defaultCount;
|
4079 | validateParam(options, param.left, param.left.name);
|
4080 | } else {
|
4081 | return null;
|
4082 | }
|
4083 | }
|
4084 |
|
4085 | if (options.message === Messages.StrictParamDupe) {
|
4086 | throwError(
|
4087 | strict ? options.stricted : options.firstRestricted,
|
4088 | options.message
|
4089 | );
|
4090 | }
|
4091 |
|
4092 | if (defaultCount === 0) {
|
4093 | defaults = [];
|
4094 | }
|
4095 |
|
4096 | return {
|
4097 | params: params,
|
4098 | defaults: defaults,
|
4099 | rest: rest,
|
4100 | stricted: options.stricted,
|
4101 | firstRestricted: options.firstRestricted,
|
4102 | message: options.message
|
4103 | };
|
4104 | }
|
4105 |
|
4106 | function parseArrowFunctionExpression(options, marker) {
|
4107 | var previousStrict, previousYieldAllowed, previousAwaitAllowed, body;
|
4108 |
|
4109 | expect('=>');
|
4110 |
|
4111 | previousStrict = strict;
|
4112 | previousYieldAllowed = state.yieldAllowed;
|
4113 | state.yieldAllowed = false;
|
4114 | previousAwaitAllowed = state.awaitAllowed;
|
4115 | state.awaitAllowed = !!options.async;
|
4116 | body = parseConciseBody();
|
4117 |
|
4118 | if (strict && options.firstRestricted) {
|
4119 | throwError(options.firstRestricted, options.message);
|
4120 | }
|
4121 | if (strict && options.stricted) {
|
4122 | throwErrorTolerant(options.stricted, options.message);
|
4123 | }
|
4124 |
|
4125 | strict = previousStrict;
|
4126 | state.yieldAllowed = previousYieldAllowed;
|
4127 | state.awaitAllowed = previousAwaitAllowed;
|
4128 |
|
4129 | return markerApply(marker, delegate.createArrowFunctionExpression(
|
4130 | options.params,
|
4131 | options.defaults,
|
4132 | body,
|
4133 | options.rest,
|
4134 | body.type !== Syntax.BlockStatement,
|
4135 | !!options.async
|
4136 | ));
|
4137 | }
|
4138 |
|
4139 | function parseAssignmentExpression() {
|
4140 | var marker, expr, token, params, oldParenthesizedCount,
|
4141 | startsWithParen = false, backtrackToken = lookahead,
|
4142 | possiblyAsync = false;
|
4143 |
|
4144 | if (matchYield()) {
|
4145 | return parseYieldExpression();
|
4146 | }
|
4147 |
|
4148 | if (matchAwait()) {
|
4149 | return parseAwaitExpression();
|
4150 | }
|
4151 |
|
4152 | oldParenthesizedCount = state.parenthesizedCount;
|
4153 |
|
4154 | marker = markerCreate();
|
4155 |
|
4156 | if (matchAsyncFuncExprOrDecl()) {
|
4157 | return parseFunctionExpression();
|
4158 | }
|
4159 |
|
4160 | if (matchAsync()) {
|
4161 |
|
4162 |
|
4163 |
|
4164 |
|
4165 | possiblyAsync = true;
|
4166 | lex();
|
4167 | }
|
4168 |
|
4169 | if (match('(')) {
|
4170 | token = lookahead2();
|
4171 | if ((token.type === Token.Punctuator && token.value === ')') || token.value === '...') {
|
4172 | params = parseParams();
|
4173 | if (!match('=>')) {
|
4174 | throwUnexpected(lex());
|
4175 | }
|
4176 | params.async = possiblyAsync;
|
4177 | return parseArrowFunctionExpression(params, marker);
|
4178 | }
|
4179 | startsWithParen = true;
|
4180 | }
|
4181 |
|
4182 | token = lookahead;
|
4183 |
|
4184 |
|
4185 |
|
4186 |
|
4187 | if (possiblyAsync && !match('(') && token.type !== Token.Identifier) {
|
4188 | possiblyAsync = false;
|
4189 | rewind(backtrackToken);
|
4190 | }
|
4191 |
|
4192 | expr = parseConditionalExpression();
|
4193 |
|
4194 | if (match('=>') &&
|
4195 | (state.parenthesizedCount === oldParenthesizedCount ||
|
4196 | state.parenthesizedCount === (oldParenthesizedCount + 1))) {
|
4197 | if (expr.type === Syntax.Identifier) {
|
4198 | params = reinterpretAsCoverFormalsList([ expr ]);
|
4199 | } else if (expr.type === Syntax.AssignmentExpression ||
|
4200 | expr.type === Syntax.ArrayExpression ||
|
4201 | expr.type === Syntax.ObjectExpression) {
|
4202 | if (!startsWithParen) {
|
4203 | throwUnexpected(lex());
|
4204 | }
|
4205 | params = reinterpretAsCoverFormalsList([ expr ]);
|
4206 | } else if (expr.type === Syntax.SequenceExpression) {
|
4207 | params = reinterpretAsCoverFormalsList(expr.expressions);
|
4208 | }
|
4209 | if (params) {
|
4210 | params.async = possiblyAsync;
|
4211 | return parseArrowFunctionExpression(params, marker);
|
4212 | }
|
4213 | }
|
4214 |
|
4215 |
|
4216 |
|
4217 |
|
4218 | if (possiblyAsync) {
|
4219 | possiblyAsync = false;
|
4220 | rewind(backtrackToken);
|
4221 | expr = parseConditionalExpression();
|
4222 | }
|
4223 |
|
4224 | if (matchAssign()) {
|
4225 |
|
4226 | if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
|
4227 | throwErrorTolerant(token, Messages.StrictLHSAssignment);
|
4228 | }
|
4229 |
|
4230 |
|
4231 | if (match('=') && (expr.type === Syntax.ObjectExpression || expr.type === Syntax.ArrayExpression)) {
|
4232 | reinterpretAsAssignmentBindingPattern(expr);
|
4233 | } else if (!isLeftHandSide(expr)) {
|
4234 | throwError({}, Messages.InvalidLHSInAssignment);
|
4235 | }
|
4236 |
|
4237 | expr = markerApply(marker, delegate.createAssignmentExpression(lex().value, expr, parseAssignmentExpression()));
|
4238 | }
|
4239 |
|
4240 | return expr;
|
4241 | }
|
4242 |
|
4243 |
|
4244 |
|
4245 | function parseExpression() {
|
4246 | var marker, expr, expressions, sequence, spreadFound, possibleArrow;
|
4247 |
|
4248 | marker = markerCreate();
|
4249 | expr = parseAssignmentExpression();
|
4250 | expressions = [ expr ];
|
4251 |
|
4252 | if (match(',')) {
|
4253 | while (index < length) {
|
4254 | if (!match(',')) {
|
4255 | break;
|
4256 | }
|
4257 |
|
4258 | lex();
|
4259 |
|
4260 | if (match(')')) {
|
4261 | possibleArrow = lookahead2();
|
4262 | if (
|
4263 | possibleArrow.type === Token.Punctuator &&
|
4264 | possibleArrow.value === '=>'
|
4265 | ) {
|
4266 | break;
|
4267 | }
|
4268 | }
|
4269 |
|
4270 | expr = parseSpreadOrAssignmentExpression();
|
4271 | expressions.push(expr);
|
4272 |
|
4273 | if (expr.type === Syntax.SpreadElement) {
|
4274 | spreadFound = true;
|
4275 | if (!match(')')) {
|
4276 | throwError({}, Messages.ElementAfterSpreadElement);
|
4277 | }
|
4278 | break;
|
4279 | }
|
4280 | }
|
4281 |
|
4282 | if (expressions.length > 1) {
|
4283 | sequence = markerApply(marker, delegate.createSequenceExpression(expressions));
|
4284 | }
|
4285 | }
|
4286 |
|
4287 | if (spreadFound && lookahead2().value !== '=>') {
|
4288 | throwError({}, Messages.IllegalSpread);
|
4289 | }
|
4290 |
|
4291 | return sequence || expr;
|
4292 | }
|
4293 |
|
4294 |
|
4295 |
|
4296 | function parseStatementList() {
|
4297 | var list = [],
|
4298 | statement;
|
4299 |
|
4300 | while (index < length) {
|
4301 | if (match('}')) {
|
4302 | break;
|
4303 | }
|
4304 | statement = parseSourceElement();
|
4305 | if (typeof statement === 'undefined') {
|
4306 | break;
|
4307 | }
|
4308 | list.push(statement);
|
4309 | }
|
4310 |
|
4311 | return list;
|
4312 | }
|
4313 |
|
4314 | function parseBlock() {
|
4315 | var block, marker = markerCreate();
|
4316 |
|
4317 | expect('{');
|
4318 |
|
4319 | block = parseStatementList();
|
4320 |
|
4321 | expect('}');
|
4322 |
|
4323 | return markerApply(marker, delegate.createBlockStatement(block));
|
4324 | }
|
4325 |
|
4326 |
|
4327 |
|
4328 | function parseTypeParameterDeclaration() {
|
4329 | var marker = markerCreate(), paramTypes = [];
|
4330 |
|
4331 | expect('<');
|
4332 | while (!match('>')) {
|
4333 | paramTypes.push(parseTypeAnnotatableIdentifier());
|
4334 | if (!match('>')) {
|
4335 | expect(',');
|
4336 | }
|
4337 | }
|
4338 | expect('>');
|
4339 |
|
4340 | return markerApply(marker, delegate.createTypeParameterDeclaration(
|
4341 | paramTypes
|
4342 | ));
|
4343 | }
|
4344 |
|
4345 | function parseTypeParameterInstantiation() {
|
4346 | var marker = markerCreate(), oldInType = state.inType, paramTypes = [];
|
4347 |
|
4348 | state.inType = true;
|
4349 |
|
4350 | expect('<');
|
4351 | while (!match('>')) {
|
4352 | paramTypes.push(parseType());
|
4353 | if (!match('>')) {
|
4354 | expect(',');
|
4355 | }
|
4356 | }
|
4357 | expect('>');
|
4358 |
|
4359 | state.inType = oldInType;
|
4360 |
|
4361 | return markerApply(marker, delegate.createTypeParameterInstantiation(
|
4362 | paramTypes
|
4363 | ));
|
4364 | }
|
4365 |
|
4366 | function parseObjectTypeIndexer(marker, isStatic) {
|
4367 | var id, key, value;
|
4368 |
|
4369 | expect('[');
|
4370 | id = parseObjectPropertyKey();
|
4371 | expect(':');
|
4372 | key = parseType();
|
4373 | expect(']');
|
4374 | expect(':');
|
4375 | value = parseType();
|
4376 |
|
4377 | return markerApply(marker, delegate.createObjectTypeIndexer(
|
4378 | id,
|
4379 | key,
|
4380 | value,
|
4381 | isStatic
|
4382 | ));
|
4383 | }
|
4384 |
|
4385 | function parseObjectTypeMethodish(marker) {
|
4386 | var params = [], rest = null, returnType, typeParameters = null;
|
4387 | if (match('<')) {
|
4388 | typeParameters = parseTypeParameterDeclaration();
|
4389 | }
|
4390 |
|
4391 | expect('(');
|
4392 | while (lookahead.type === Token.Identifier) {
|
4393 | params.push(parseFunctionTypeParam());
|
4394 | if (!match(')')) {
|
4395 | expect(',');
|
4396 | }
|
4397 | }
|
4398 |
|
4399 | if (match('...')) {
|
4400 | lex();
|
4401 | rest = parseFunctionTypeParam();
|
4402 | }
|
4403 | expect(')');
|
4404 | expect(':');
|
4405 | returnType = parseType();
|
4406 |
|
4407 | return markerApply(marker, delegate.createFunctionTypeAnnotation(
|
4408 | params,
|
4409 | returnType,
|
4410 | rest,
|
4411 | typeParameters
|
4412 | ));
|
4413 | }
|
4414 |
|
4415 | function parseObjectTypeMethod(marker, isStatic, key) {
|
4416 | var optional = false, value;
|
4417 | value = parseObjectTypeMethodish(marker);
|
4418 |
|
4419 | return markerApply(marker, delegate.createObjectTypeProperty(
|
4420 | key,
|
4421 | value,
|
4422 | optional,
|
4423 | isStatic
|
4424 | ));
|
4425 | }
|
4426 |
|
4427 | function parseObjectTypeCallProperty(marker, isStatic) {
|
4428 | var valueMarker = markerCreate();
|
4429 | return markerApply(marker, delegate.createObjectTypeCallProperty(
|
4430 | parseObjectTypeMethodish(valueMarker),
|
4431 | isStatic
|
4432 | ));
|
4433 | }
|
4434 |
|
4435 | function parseObjectType(allowStatic) {
|
4436 | var callProperties = [], indexers = [], marker, optional = false,
|
4437 | properties = [], propertyKey, propertyTypeAnnotation,
|
4438 | token, isStatic, matchStatic;
|
4439 |
|
4440 | expect('{');
|
4441 |
|
4442 | while (!match('}')) {
|
4443 | marker = markerCreate();
|
4444 | matchStatic =
|
4445 | strict
|
4446 | ? matchKeyword('static')
|
4447 | : matchContextualKeyword('static');
|
4448 |
|
4449 | if (allowStatic && matchStatic) {
|
4450 | token = lex();
|
4451 | isStatic = true;
|
4452 | }
|
4453 |
|
4454 | if (match('[')) {
|
4455 | indexers.push(parseObjectTypeIndexer(marker, isStatic));
|
4456 | } else if (match('(') || match('<')) {
|
4457 | callProperties.push(parseObjectTypeCallProperty(marker, allowStatic));
|
4458 | } else {
|
4459 | if (isStatic && match(':')) {
|
4460 | propertyKey = markerApply(marker, delegate.createIdentifier(token));
|
4461 | throwErrorTolerant(token, Messages.StrictReservedWord);
|
4462 | } else {
|
4463 | propertyKey = parseObjectPropertyKey();
|
4464 | }
|
4465 | if (match('<') || match('(')) {
|
4466 |
|
4467 | properties.push(parseObjectTypeMethod(marker, isStatic, propertyKey));
|
4468 | } else {
|
4469 | if (match('?')) {
|
4470 | lex();
|
4471 | optional = true;
|
4472 | }
|
4473 | expect(':');
|
4474 | propertyTypeAnnotation = parseType();
|
4475 | properties.push(markerApply(marker, delegate.createObjectTypeProperty(
|
4476 | propertyKey,
|
4477 | propertyTypeAnnotation,
|
4478 | optional,
|
4479 | isStatic
|
4480 | )));
|
4481 | }
|
4482 | }
|
4483 |
|
4484 | if (match(';') || match(',')) {
|
4485 | lex();
|
4486 | } else if (!match('}')) {
|
4487 | throwUnexpected(lookahead);
|
4488 | }
|
4489 | }
|
4490 |
|
4491 | expect('}');
|
4492 |
|
4493 | return delegate.createObjectTypeAnnotation(
|
4494 | properties,
|
4495 | indexers,
|
4496 | callProperties
|
4497 | );
|
4498 | }
|
4499 |
|
4500 | function parseGenericType() {
|
4501 | var marker = markerCreate(),
|
4502 | typeParameters = null, typeIdentifier;
|
4503 |
|
4504 | typeIdentifier = parseVariableIdentifier();
|
4505 |
|
4506 | while (match('.')) {
|
4507 | expect('.');
|
4508 | typeIdentifier = markerApply(marker, delegate.createQualifiedTypeIdentifier(
|
4509 | typeIdentifier,
|
4510 | parseVariableIdentifier()
|
4511 | ));
|
4512 | }
|
4513 |
|
4514 | if (match('<')) {
|
4515 | typeParameters = parseTypeParameterInstantiation();
|
4516 | }
|
4517 |
|
4518 | return markerApply(marker, delegate.createGenericTypeAnnotation(
|
4519 | typeIdentifier,
|
4520 | typeParameters
|
4521 | ));
|
4522 | }
|
4523 |
|
4524 | function parseVoidType() {
|
4525 | var marker = markerCreate();
|
4526 | expectKeyword('void');
|
4527 | return markerApply(marker, delegate.createVoidTypeAnnotation());
|
4528 | }
|
4529 |
|
4530 | function parseTypeofType() {
|
4531 | var argument, marker = markerCreate();
|
4532 | expectKeyword('typeof');
|
4533 | argument = parsePrimaryType();
|
4534 | return markerApply(marker, delegate.createTypeofTypeAnnotation(
|
4535 | argument
|
4536 | ));
|
4537 | }
|
4538 |
|
4539 | function parseTupleType() {
|
4540 | var marker = markerCreate(), types = [];
|
4541 | expect('[');
|
4542 |
|
4543 | while (index < length && !match(']')) {
|
4544 | types.push(parseType());
|
4545 | if (match(']')) {
|
4546 | break;
|
4547 | }
|
4548 | expect(',');
|
4549 | }
|
4550 | expect(']');
|
4551 | return markerApply(marker, delegate.createTupleTypeAnnotation(
|
4552 | types
|
4553 | ));
|
4554 | }
|
4555 |
|
4556 | function parseFunctionTypeParam() {
|
4557 | var marker = markerCreate(), name, optional = false, typeAnnotation;
|
4558 | name = parseVariableIdentifier();
|
4559 | if (match('?')) {
|
4560 | lex();
|
4561 | optional = true;
|
4562 | }
|
4563 | expect(':');
|
4564 | typeAnnotation = parseType();
|
4565 | return markerApply(marker, delegate.createFunctionTypeParam(
|
4566 | name,
|
4567 | typeAnnotation,
|
4568 | optional
|
4569 | ));
|
4570 | }
|
4571 |
|
4572 | function parseFunctionTypeParams() {
|
4573 | var ret = { params: [], rest: null };
|
4574 | while (lookahead.type === Token.Identifier) {
|
4575 | ret.params.push(parseFunctionTypeParam());
|
4576 | if (!match(')')) {
|
4577 | expect(',');
|
4578 | }
|
4579 | }
|
4580 |
|
4581 | if (match('...')) {
|
4582 | lex();
|
4583 | ret.rest = parseFunctionTypeParam();
|
4584 | }
|
4585 | return ret;
|
4586 | }
|
4587 |
|
4588 |
|
4589 |
|
4590 |
|
4591 | function parsePrimaryType() {
|
4592 | var params = null, returnType = null,
|
4593 | marker = markerCreate(), rest = null, tmp,
|
4594 | typeParameters, token, type, isGroupedType = false;
|
4595 |
|
4596 | switch (lookahead.type) {
|
4597 | case Token.Identifier:
|
4598 | switch (lookahead.value) {
|
4599 | case 'any':
|
4600 | lex();
|
4601 | return markerApply(marker, delegate.createAnyTypeAnnotation());
|
4602 | case 'bool':
|
4603 | case 'boolean':
|
4604 | lex();
|
4605 | return markerApply(marker, delegate.createBooleanTypeAnnotation());
|
4606 | case 'number':
|
4607 | lex();
|
4608 | return markerApply(marker, delegate.createNumberTypeAnnotation());
|
4609 | case 'string':
|
4610 | lex();
|
4611 | return markerApply(marker, delegate.createStringTypeAnnotation());
|
4612 | }
|
4613 | return markerApply(marker, parseGenericType());
|
4614 | case Token.Punctuator:
|
4615 | switch (lookahead.value) {
|
4616 | case '{':
|
4617 | return markerApply(marker, parseObjectType());
|
4618 | case '[':
|
4619 | return parseTupleType();
|
4620 | case '<':
|
4621 | typeParameters = parseTypeParameterDeclaration();
|
4622 | expect('(');
|
4623 | tmp = parseFunctionTypeParams();
|
4624 | params = tmp.params;
|
4625 | rest = tmp.rest;
|
4626 | expect(')');
|
4627 |
|
4628 | expect('=>');
|
4629 |
|
4630 | returnType = parseType();
|
4631 |
|
4632 | return markerApply(marker, delegate.createFunctionTypeAnnotation(
|
4633 | params,
|
4634 | returnType,
|
4635 | rest,
|
4636 | typeParameters
|
4637 | ));
|
4638 | case '(':
|
4639 | lex();
|
4640 |
|
4641 | if (!match(')') && !match('...')) {
|
4642 | if (lookahead.type === Token.Identifier) {
|
4643 | token = lookahead2();
|
4644 | isGroupedType = token.value !== '?' && token.value !== ':';
|
4645 | } else {
|
4646 | isGroupedType = true;
|
4647 | }
|
4648 | }
|
4649 |
|
4650 | if (isGroupedType) {
|
4651 | type = parseType();
|
4652 | expect(')');
|
4653 |
|
4654 |
|
4655 |
|
4656 | if (match('=>')) {
|
4657 | throwError({}, Messages.ConfusedAboutFunctionType);
|
4658 | }
|
4659 |
|
4660 | return type;
|
4661 | }
|
4662 |
|
4663 | tmp = parseFunctionTypeParams();
|
4664 | params = tmp.params;
|
4665 | rest = tmp.rest;
|
4666 |
|
4667 | expect(')');
|
4668 |
|
4669 | expect('=>');
|
4670 |
|
4671 | returnType = parseType();
|
4672 |
|
4673 | return markerApply(marker, delegate.createFunctionTypeAnnotation(
|
4674 | params,
|
4675 | returnType,
|
4676 | rest,
|
4677 | null
|
4678 | ));
|
4679 | }
|
4680 | break;
|
4681 | case Token.Keyword:
|
4682 | switch (lookahead.value) {
|
4683 | case 'void':
|
4684 | return markerApply(marker, parseVoidType());
|
4685 | case 'typeof':
|
4686 | return markerApply(marker, parseTypeofType());
|
4687 | }
|
4688 | break;
|
4689 | case Token.StringLiteral:
|
4690 | token = lex();
|
4691 | if (token.octal) {
|
4692 | throwError(token, Messages.StrictOctalLiteral);
|
4693 | }
|
4694 | return markerApply(marker, delegate.createStringLiteralTypeAnnotation(
|
4695 | token
|
4696 | ));
|
4697 | }
|
4698 |
|
4699 | throwUnexpected(lookahead);
|
4700 | }
|
4701 |
|
4702 | function parsePostfixType() {
|
4703 | var marker = markerCreate(), t = parsePrimaryType();
|
4704 | if (match('[')) {
|
4705 | expect('[');
|
4706 | expect(']');
|
4707 | return markerApply(marker, delegate.createArrayTypeAnnotation(t));
|
4708 | }
|
4709 | return t;
|
4710 | }
|
4711 |
|
4712 | function parsePrefixType() {
|
4713 | var marker = markerCreate();
|
4714 | if (match('?')) {
|
4715 | lex();
|
4716 | return markerApply(marker, delegate.createNullableTypeAnnotation(
|
4717 | parsePrefixType()
|
4718 | ));
|
4719 | }
|
4720 | return parsePostfixType();
|
4721 | }
|
4722 |
|
4723 |
|
4724 | function parseIntersectionType() {
|
4725 | var marker = markerCreate(), type, types;
|
4726 | type = parsePrefixType();
|
4727 | types = [type];
|
4728 | while (match('&')) {
|
4729 | lex();
|
4730 | types.push(parsePrefixType());
|
4731 | }
|
4732 |
|
4733 | return types.length === 1 ?
|
4734 | type :
|
4735 | markerApply(marker, delegate.createIntersectionTypeAnnotation(
|
4736 | types
|
4737 | ));
|
4738 | }
|
4739 |
|
4740 | function parseUnionType() {
|
4741 | var marker = markerCreate(), type, types;
|
4742 | type = parseIntersectionType();
|
4743 | types = [type];
|
4744 | while (match('|')) {
|
4745 | lex();
|
4746 | types.push(parseIntersectionType());
|
4747 | }
|
4748 | return types.length === 1 ?
|
4749 | type :
|
4750 | markerApply(marker, delegate.createUnionTypeAnnotation(
|
4751 | types
|
4752 | ));
|
4753 | }
|
4754 |
|
4755 | function parseType() {
|
4756 | var oldInType = state.inType, type;
|
4757 | state.inType = true;
|
4758 |
|
4759 | type = parseUnionType();
|
4760 |
|
4761 | state.inType = oldInType;
|
4762 | return type;
|
4763 | }
|
4764 |
|
4765 | function parseTypeAnnotation() {
|
4766 | var marker = markerCreate(), type;
|
4767 |
|
4768 | expect(':');
|
4769 | type = parseType();
|
4770 |
|
4771 | return markerApply(marker, delegate.createTypeAnnotation(type));
|
4772 | }
|
4773 |
|
4774 | function parseVariableIdentifier() {
|
4775 | var marker = markerCreate(),
|
4776 | token = lex();
|
4777 |
|
4778 | if (token.type !== Token.Identifier) {
|
4779 | throwUnexpected(token);
|
4780 | }
|
4781 |
|
4782 | return markerApply(marker, delegate.createIdentifier(token.value));
|
4783 | }
|
4784 |
|
4785 | function parseTypeAnnotatableIdentifier(requireTypeAnnotation, canBeOptionalParam) {
|
4786 | var marker = markerCreate(),
|
4787 | ident = parseVariableIdentifier(),
|
4788 | isOptionalParam = false;
|
4789 |
|
4790 | if (canBeOptionalParam && match('?')) {
|
4791 | expect('?');
|
4792 | isOptionalParam = true;
|
4793 | }
|
4794 |
|
4795 | if (requireTypeAnnotation || match(':')) {
|
4796 | ident.typeAnnotation = parseTypeAnnotation();
|
4797 | ident = markerApply(marker, ident);
|
4798 | }
|
4799 |
|
4800 | if (isOptionalParam) {
|
4801 | ident.optional = true;
|
4802 | ident = markerApply(marker, ident);
|
4803 | }
|
4804 |
|
4805 | return ident;
|
4806 | }
|
4807 |
|
4808 | function parseVariableDeclaration(kind) {
|
4809 | var id,
|
4810 | marker = markerCreate(),
|
4811 | init = null,
|
4812 | typeAnnotationMarker = markerCreate();
|
4813 | if (match('{')) {
|
4814 | id = parseObjectInitialiser();
|
4815 | reinterpretAsAssignmentBindingPattern(id);
|
4816 | if (match(':')) {
|
4817 | id.typeAnnotation = parseTypeAnnotation();
|
4818 | markerApply(typeAnnotationMarker, id);
|
4819 | }
|
4820 | } else if (match('[')) {
|
4821 | id = parseArrayInitialiser();
|
4822 | reinterpretAsAssignmentBindingPattern(id);
|
4823 | if (match(':')) {
|
4824 | id.typeAnnotation = parseTypeAnnotation();
|
4825 | markerApply(typeAnnotationMarker, id);
|
4826 | }
|
4827 | } else {
|
4828 |
|
4829 | id = state.allowKeyword ? parseNonComputedProperty() : parseTypeAnnotatableIdentifier();
|
4830 |
|
4831 | if (strict && isRestrictedWord(id.name)) {
|
4832 | throwErrorTolerant({}, Messages.StrictVarName);
|
4833 | }
|
4834 | }
|
4835 |
|
4836 | if (kind === 'const') {
|
4837 | if (!match('=')) {
|
4838 | throwError({}, Messages.NoUninitializedConst);
|
4839 | }
|
4840 | expect('=');
|
4841 | init = parseAssignmentExpression();
|
4842 | } else if (match('=')) {
|
4843 | lex();
|
4844 | init = parseAssignmentExpression();
|
4845 | }
|
4846 |
|
4847 | return markerApply(marker, delegate.createVariableDeclarator(id, init));
|
4848 | }
|
4849 |
|
4850 | function parseVariableDeclarationList(kind) {
|
4851 | var list = [];
|
4852 |
|
4853 | do {
|
4854 | list.push(parseVariableDeclaration(kind));
|
4855 | if (!match(',')) {
|
4856 | break;
|
4857 | }
|
4858 | lex();
|
4859 | } while (index < length);
|
4860 |
|
4861 | return list;
|
4862 | }
|
4863 |
|
4864 | function parseVariableStatement() {
|
4865 | var declarations, marker = markerCreate();
|
4866 |
|
4867 | expectKeyword('var');
|
4868 |
|
4869 | declarations = parseVariableDeclarationList();
|
4870 |
|
4871 | consumeSemicolon();
|
4872 |
|
4873 | return markerApply(marker, delegate.createVariableDeclaration(declarations, 'var'));
|
4874 | }
|
4875 |
|
4876 |
|
4877 |
|
4878 |
|
4879 |
|
4880 | function parseConstLetDeclaration(kind) {
|
4881 | var declarations, marker = markerCreate();
|
4882 |
|
4883 | expectKeyword(kind);
|
4884 |
|
4885 | declarations = parseVariableDeclarationList(kind);
|
4886 |
|
4887 | consumeSemicolon();
|
4888 |
|
4889 | return markerApply(marker, delegate.createVariableDeclaration(declarations, kind));
|
4890 | }
|
4891 |
|
4892 |
|
4893 |
|
4894 | function parseModuleSpecifier() {
|
4895 | var marker = markerCreate(),
|
4896 | specifier;
|
4897 |
|
4898 | if (lookahead.type !== Token.StringLiteral) {
|
4899 | throwError({}, Messages.InvalidModuleSpecifier);
|
4900 | }
|
4901 | specifier = delegate.createLiteral(lex());
|
4902 | return markerApply(marker, specifier);
|
4903 | }
|
4904 |
|
4905 | function parseExportBatchSpecifier() {
|
4906 | var marker = markerCreate();
|
4907 | expect('*');
|
4908 | return markerApply(marker, delegate.createExportBatchSpecifier());
|
4909 | }
|
4910 |
|
4911 | function parseExportSpecifier() {
|
4912 | var id, name = null, marker = markerCreate();
|
4913 | if (matchKeyword('default')) {
|
4914 | lex();
|
4915 | id = markerApply(marker, delegate.createIdentifier('default'));
|
4916 |
|
4917 | } else {
|
4918 | id = parseVariableIdentifier();
|
4919 | }
|
4920 | if (matchContextualKeyword('as')) {
|
4921 | lex();
|
4922 | name = parseNonComputedProperty();
|
4923 | }
|
4924 |
|
4925 | return markerApply(marker, delegate.createExportSpecifier(id, name));
|
4926 | }
|
4927 |
|
4928 | function parseExportDeclaration() {
|
4929 | var declaration = null,
|
4930 | possibleIdentifierToken, sourceElement,
|
4931 | isExportFromIdentifier,
|
4932 | src = null, specifiers = [],
|
4933 | marker = markerCreate();
|
4934 |
|
4935 | expectKeyword('export');
|
4936 |
|
4937 | if (matchKeyword('default')) {
|
4938 |
|
4939 |
|
4940 | lex();
|
4941 | if (matchKeyword('function') || matchKeyword('class')) {
|
4942 | possibleIdentifierToken = lookahead2();
|
4943 | if (isIdentifierName(possibleIdentifierToken)) {
|
4944 |
|
4945 |
|
4946 |
|
4947 | sourceElement = parseSourceElement();
|
4948 | return markerApply(marker, delegate.createExportDeclaration(true, sourceElement, [sourceElement.id], null));
|
4949 | }
|
4950 |
|
4951 |
|
4952 |
|
4953 | switch (lookahead.value) {
|
4954 | case 'class':
|
4955 | return markerApply(marker, delegate.createExportDeclaration(true, parseClassExpression(), [], null));
|
4956 | case 'function':
|
4957 | return markerApply(marker, delegate.createExportDeclaration(true, parseFunctionExpression(), [], null));
|
4958 | }
|
4959 | }
|
4960 |
|
4961 | if (matchContextualKeyword('from')) {
|
4962 | throwError({}, Messages.UnexpectedToken, lookahead.value);
|
4963 | }
|
4964 |
|
4965 |
|
4966 |
|
4967 |
|
4968 | if (match('{')) {
|
4969 | declaration = parseObjectInitialiser();
|
4970 | } else if (match('[')) {
|
4971 | declaration = parseArrayInitialiser();
|
4972 | } else {
|
4973 | declaration = parseAssignmentExpression();
|
4974 | }
|
4975 | consumeSemicolon();
|
4976 | return markerApply(marker, delegate.createExportDeclaration(true, declaration, [], null));
|
4977 | }
|
4978 |
|
4979 |
|
4980 | if (lookahead.type === Token.Keyword || matchContextualKeyword('type')) {
|
4981 |
|
4982 |
|
4983 | switch (lookahead.value) {
|
4984 | case 'type':
|
4985 | case 'let':
|
4986 | case 'const':
|
4987 | case 'var':
|
4988 | case 'class':
|
4989 | case 'function':
|
4990 | return markerApply(marker, delegate.createExportDeclaration(false, parseSourceElement(), specifiers, null));
|
4991 | }
|
4992 | }
|
4993 |
|
4994 | if (match('*')) {
|
4995 |
|
4996 |
|
4997 | specifiers.push(parseExportBatchSpecifier());
|
4998 |
|
4999 | if (!matchContextualKeyword('from')) {
|
5000 | throwError({}, lookahead.value ?
|
5001 | Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
|
5002 | }
|
5003 | lex();
|
5004 | src = parseModuleSpecifier();
|
5005 | consumeSemicolon();
|
5006 |
|
5007 | return markerApply(marker, delegate.createExportDeclaration(false, null, specifiers, src));
|
5008 | }
|
5009 |
|
5010 | expect('{');
|
5011 | if (!match('}')) {
|
5012 | do {
|
5013 | isExportFromIdentifier = isExportFromIdentifier || matchKeyword('default');
|
5014 | specifiers.push(parseExportSpecifier());
|
5015 | } while (match(',') && lex());
|
5016 | }
|
5017 | expect('}');
|
5018 |
|
5019 | if (matchContextualKeyword('from')) {
|
5020 |
|
5021 |
|
5022 |
|
5023 | lex();
|
5024 | src = parseModuleSpecifier();
|
5025 | consumeSemicolon();
|
5026 | } else if (isExportFromIdentifier) {
|
5027 |
|
5028 |
|
5029 | throwError({}, lookahead.value ?
|
5030 | Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
|
5031 | } else {
|
5032 |
|
5033 |
|
5034 | consumeSemicolon();
|
5035 | }
|
5036 | return markerApply(marker, delegate.createExportDeclaration(false, declaration, specifiers, src));
|
5037 | }
|
5038 |
|
5039 |
|
5040 | function parseImportSpecifier() {
|
5041 |
|
5042 | var id, name = null, marker = markerCreate();
|
5043 |
|
5044 | id = parseNonComputedProperty();
|
5045 | if (matchContextualKeyword('as')) {
|
5046 | lex();
|
5047 | name = parseVariableIdentifier();
|
5048 | }
|
5049 |
|
5050 | return markerApply(marker, delegate.createImportSpecifier(id, name));
|
5051 | }
|
5052 |
|
5053 | function parseNamedImports() {
|
5054 | var specifiers = [];
|
5055 |
|
5056 | expect('{');
|
5057 | if (!match('}')) {
|
5058 | do {
|
5059 | specifiers.push(parseImportSpecifier());
|
5060 | } while (match(',') && lex());
|
5061 | }
|
5062 | expect('}');
|
5063 | return specifiers;
|
5064 | }
|
5065 |
|
5066 | function parseImportDefaultSpecifier() {
|
5067 |
|
5068 | var id, marker = markerCreate();
|
5069 |
|
5070 | id = parseNonComputedProperty();
|
5071 |
|
5072 | return markerApply(marker, delegate.createImportDefaultSpecifier(id));
|
5073 | }
|
5074 |
|
5075 | function parseImportNamespaceSpecifier() {
|
5076 |
|
5077 | var id, marker = markerCreate();
|
5078 |
|
5079 | expect('*');
|
5080 | if (!matchContextualKeyword('as')) {
|
5081 | throwError({}, Messages.NoAsAfterImportNamespace);
|
5082 | }
|
5083 | lex();
|
5084 | id = parseNonComputedProperty();
|
5085 |
|
5086 | return markerApply(marker, delegate.createImportNamespaceSpecifier(id));
|
5087 | }
|
5088 |
|
5089 | function parseImportDeclaration() {
|
5090 | var specifiers, src, marker = markerCreate(), isType = false, token2;
|
5091 |
|
5092 | expectKeyword('import');
|
5093 |
|
5094 | if (matchContextualKeyword('type')) {
|
5095 | token2 = lookahead2();
|
5096 | if ((token2.type === Token.Identifier && token2.value !== 'from') ||
|
5097 | (token2.type === Token.Punctuator &&
|
5098 | (token2.value === '{' || token2.value === '*'))) {
|
5099 | isType = true;
|
5100 | lex();
|
5101 | }
|
5102 | }
|
5103 |
|
5104 | specifiers = [];
|
5105 |
|
5106 | if (lookahead.type === Token.StringLiteral) {
|
5107 |
|
5108 |
|
5109 | src = parseModuleSpecifier();
|
5110 | consumeSemicolon();
|
5111 | return markerApply(marker, delegate.createImportDeclaration(specifiers, src, isType));
|
5112 | }
|
5113 |
|
5114 | if (!matchKeyword('default') && isIdentifierName(lookahead)) {
|
5115 |
|
5116 |
|
5117 |
|
5118 | specifiers.push(parseImportDefaultSpecifier());
|
5119 | if (match(',')) {
|
5120 | lex();
|
5121 | }
|
5122 | }
|
5123 | if (match('*')) {
|
5124 |
|
5125 |
|
5126 |
|
5127 | specifiers.push(parseImportNamespaceSpecifier());
|
5128 | } else if (match('{')) {
|
5129 |
|
5130 |
|
5131 |
|
5132 | specifiers = specifiers.concat(parseNamedImports());
|
5133 | }
|
5134 |
|
5135 | if (!matchContextualKeyword('from')) {
|
5136 | throwError({}, lookahead.value ?
|
5137 | Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
|
5138 | }
|
5139 | lex();
|
5140 | src = parseModuleSpecifier();
|
5141 | consumeSemicolon();
|
5142 |
|
5143 | return markerApply(marker, delegate.createImportDeclaration(specifiers, src, isType));
|
5144 | }
|
5145 |
|
5146 |
|
5147 |
|
5148 | function parseEmptyStatement() {
|
5149 | var marker = markerCreate();
|
5150 | expect(';');
|
5151 | return markerApply(marker, delegate.createEmptyStatement());
|
5152 | }
|
5153 |
|
5154 |
|
5155 |
|
5156 | function parseExpressionStatement() {
|
5157 | var marker = markerCreate(), expr = parseExpression();
|
5158 | consumeSemicolon();
|
5159 | return markerApply(marker, delegate.createExpressionStatement(expr));
|
5160 | }
|
5161 |
|
5162 |
|
5163 |
|
5164 | function parseIfStatement() {
|
5165 | var test, consequent, alternate, marker = markerCreate();
|
5166 |
|
5167 | expectKeyword('if');
|
5168 |
|
5169 | expect('(');
|
5170 |
|
5171 | test = parseExpression();
|
5172 |
|
5173 | expect(')');
|
5174 |
|
5175 | consequent = parseStatement();
|
5176 |
|
5177 | if (matchKeyword('else')) {
|
5178 | lex();
|
5179 | alternate = parseStatement();
|
5180 | } else {
|
5181 | alternate = null;
|
5182 | }
|
5183 |
|
5184 | return markerApply(marker, delegate.createIfStatement(test, consequent, alternate));
|
5185 | }
|
5186 |
|
5187 |
|
5188 |
|
5189 | function parseDoWhileStatement() {
|
5190 | var body, test, oldInIteration, marker = markerCreate();
|
5191 |
|
5192 | expectKeyword('do');
|
5193 |
|
5194 | oldInIteration = state.inIteration;
|
5195 | state.inIteration = true;
|
5196 |
|
5197 | body = parseStatement();
|
5198 |
|
5199 | state.inIteration = oldInIteration;
|
5200 |
|
5201 | expectKeyword('while');
|
5202 |
|
5203 | expect('(');
|
5204 |
|
5205 | test = parseExpression();
|
5206 |
|
5207 | expect(')');
|
5208 |
|
5209 | if (match(';')) {
|
5210 | lex();
|
5211 | }
|
5212 |
|
5213 | return markerApply(marker, delegate.createDoWhileStatement(body, test));
|
5214 | }
|
5215 |
|
5216 | function parseWhileStatement() {
|
5217 | var test, body, oldInIteration, marker = markerCreate();
|
5218 |
|
5219 | expectKeyword('while');
|
5220 |
|
5221 | expect('(');
|
5222 |
|
5223 | test = parseExpression();
|
5224 |
|
5225 | expect(')');
|
5226 |
|
5227 | oldInIteration = state.inIteration;
|
5228 | state.inIteration = true;
|
5229 |
|
5230 | body = parseStatement();
|
5231 |
|
5232 | state.inIteration = oldInIteration;
|
5233 |
|
5234 | return markerApply(marker, delegate.createWhileStatement(test, body));
|
5235 | }
|
5236 |
|
5237 | function parseForVariableDeclaration() {
|
5238 | var marker = markerCreate(),
|
5239 | token = lex(),
|
5240 | declarations = parseVariableDeclarationList();
|
5241 |
|
5242 | return markerApply(marker, delegate.createVariableDeclaration(declarations, token.value));
|
5243 | }
|
5244 |
|
5245 | function parseForStatement(opts) {
|
5246 | var init, test, update, left, right, body, operator, oldInIteration,
|
5247 | marker = markerCreate();
|
5248 | init = test = update = null;
|
5249 | expectKeyword('for');
|
5250 |
|
5251 |
|
5252 | if (matchContextualKeyword('each')) {
|
5253 | throwError({}, Messages.EachNotAllowed);
|
5254 | }
|
5255 |
|
5256 | expect('(');
|
5257 |
|
5258 | if (match(';')) {
|
5259 | lex();
|
5260 | } else {
|
5261 | if (matchKeyword('var') || matchKeyword('let') || matchKeyword('const')) {
|
5262 | state.allowIn = false;
|
5263 | init = parseForVariableDeclaration();
|
5264 | state.allowIn = true;
|
5265 |
|
5266 | if (init.declarations.length === 1) {
|
5267 | if (matchKeyword('in') || matchContextualKeyword('of')) {
|
5268 | operator = lookahead;
|
5269 | if (!((operator.value === 'in' || init.kind !== 'var') && init.declarations[0].init)) {
|
5270 | lex();
|
5271 | left = init;
|
5272 | right = parseExpression();
|
5273 | init = null;
|
5274 | }
|
5275 | }
|
5276 | }
|
5277 | } else {
|
5278 | state.allowIn = false;
|
5279 | init = parseExpression();
|
5280 | state.allowIn = true;
|
5281 |
|
5282 | if (matchContextualKeyword('of')) {
|
5283 | operator = lex();
|
5284 | left = init;
|
5285 | right = parseExpression();
|
5286 | init = null;
|
5287 | } else if (matchKeyword('in')) {
|
5288 |
|
5289 | if (!isAssignableLeftHandSide(init)) {
|
5290 | throwError({}, Messages.InvalidLHSInForIn);
|
5291 | }
|
5292 | operator = lex();
|
5293 | left = init;
|
5294 | right = parseExpression();
|
5295 | init = null;
|
5296 | }
|
5297 | }
|
5298 |
|
5299 | if (typeof left === 'undefined') {
|
5300 | expect(';');
|
5301 | }
|
5302 | }
|
5303 |
|
5304 | if (typeof left === 'undefined') {
|
5305 |
|
5306 | if (!match(';')) {
|
5307 | test = parseExpression();
|
5308 | }
|
5309 | expect(';');
|
5310 |
|
5311 | if (!match(')')) {
|
5312 | update = parseExpression();
|
5313 | }
|
5314 | }
|
5315 |
|
5316 | expect(')');
|
5317 |
|
5318 | oldInIteration = state.inIteration;
|
5319 | state.inIteration = true;
|
5320 |
|
5321 | if (!(opts !== undefined && opts.ignoreBody)) {
|
5322 | body = parseStatement();
|
5323 | }
|
5324 |
|
5325 | state.inIteration = oldInIteration;
|
5326 |
|
5327 | if (typeof left === 'undefined') {
|
5328 | return markerApply(marker, delegate.createForStatement(init, test, update, body));
|
5329 | }
|
5330 |
|
5331 | if (operator.value === 'in') {
|
5332 | return markerApply(marker, delegate.createForInStatement(left, right, body));
|
5333 | }
|
5334 | return markerApply(marker, delegate.createForOfStatement(left, right, body));
|
5335 | }
|
5336 |
|
5337 |
|
5338 |
|
5339 | function parseContinueStatement() {
|
5340 | var label = null, marker = markerCreate();
|
5341 |
|
5342 | expectKeyword('continue');
|
5343 |
|
5344 |
|
5345 | if (source.charCodeAt(index) === 59) {
|
5346 | lex();
|
5347 |
|
5348 | if (!state.inIteration) {
|
5349 | throwError({}, Messages.IllegalContinue);
|
5350 | }
|
5351 |
|
5352 | return markerApply(marker, delegate.createContinueStatement(null));
|
5353 | }
|
5354 |
|
5355 | if (peekLineTerminator()) {
|
5356 | if (!state.inIteration) {
|
5357 | throwError({}, Messages.IllegalContinue);
|
5358 | }
|
5359 |
|
5360 | return markerApply(marker, delegate.createContinueStatement(null));
|
5361 | }
|
5362 |
|
5363 | if (lookahead.type === Token.Identifier) {
|
5364 | label = parseVariableIdentifier();
|
5365 |
|
5366 | if (!state.labelSet.has(label.name)) {
|
5367 | throwError({}, Messages.UnknownLabel, label.name);
|
5368 | }
|
5369 | }
|
5370 |
|
5371 | consumeSemicolon();
|
5372 |
|
5373 | if (label === null && !state.inIteration) {
|
5374 | throwError({}, Messages.IllegalContinue);
|
5375 | }
|
5376 |
|
5377 | return markerApply(marker, delegate.createContinueStatement(label));
|
5378 | }
|
5379 |
|
5380 |
|
5381 |
|
5382 | function parseBreakStatement() {
|
5383 | var label = null, marker = markerCreate();
|
5384 |
|
5385 | expectKeyword('break');
|
5386 |
|
5387 |
|
5388 | if (source.charCodeAt(index) === 59) {
|
5389 | lex();
|
5390 |
|
5391 | if (!(state.inIteration || state.inSwitch)) {
|
5392 | throwError({}, Messages.IllegalBreak);
|
5393 | }
|
5394 |
|
5395 | return markerApply(marker, delegate.createBreakStatement(null));
|
5396 | }
|
5397 |
|
5398 | if (peekLineTerminator()) {
|
5399 | if (!(state.inIteration || state.inSwitch)) {
|
5400 | throwError({}, Messages.IllegalBreak);
|
5401 | }
|
5402 |
|
5403 | return markerApply(marker, delegate.createBreakStatement(null));
|
5404 | }
|
5405 |
|
5406 | if (lookahead.type === Token.Identifier) {
|
5407 | label = parseVariableIdentifier();
|
5408 |
|
5409 | if (!state.labelSet.has(label.name)) {
|
5410 | throwError({}, Messages.UnknownLabel, label.name);
|
5411 | }
|
5412 | }
|
5413 |
|
5414 | consumeSemicolon();
|
5415 |
|
5416 | if (label === null && !(state.inIteration || state.inSwitch)) {
|
5417 | throwError({}, Messages.IllegalBreak);
|
5418 | }
|
5419 |
|
5420 | return markerApply(marker, delegate.createBreakStatement(label));
|
5421 | }
|
5422 |
|
5423 |
|
5424 |
|
5425 | function parseReturnStatement() {
|
5426 | var argument = null, marker = markerCreate();
|
5427 |
|
5428 | expectKeyword('return');
|
5429 |
|
5430 | if (!state.inFunctionBody) {
|
5431 | throwErrorTolerant({}, Messages.IllegalReturn);
|
5432 | }
|
5433 |
|
5434 |
|
5435 | if (source.charCodeAt(index) === 32) {
|
5436 | if (isIdentifierStart(source.charCodeAt(index + 1))) {
|
5437 | argument = parseExpression();
|
5438 | consumeSemicolon();
|
5439 | return markerApply(marker, delegate.createReturnStatement(argument));
|
5440 | }
|
5441 | }
|
5442 |
|
5443 | if (peekLineTerminator()) {
|
5444 | return markerApply(marker, delegate.createReturnStatement(null));
|
5445 | }
|
5446 |
|
5447 | if (!match(';')) {
|
5448 | if (!match('}') && lookahead.type !== Token.EOF) {
|
5449 | argument = parseExpression();
|
5450 | }
|
5451 | }
|
5452 |
|
5453 | consumeSemicolon();
|
5454 |
|
5455 | return markerApply(marker, delegate.createReturnStatement(argument));
|
5456 | }
|
5457 |
|
5458 |
|
5459 |
|
5460 | function parseWithStatement() {
|
5461 | var object, body, marker = markerCreate();
|
5462 |
|
5463 | if (strict) {
|
5464 | throwErrorTolerant({}, Messages.StrictModeWith);
|
5465 | }
|
5466 |
|
5467 | expectKeyword('with');
|
5468 |
|
5469 | expect('(');
|
5470 |
|
5471 | object = parseExpression();
|
5472 |
|
5473 | expect(')');
|
5474 |
|
5475 | body = parseStatement();
|
5476 |
|
5477 | return markerApply(marker, delegate.createWithStatement(object, body));
|
5478 | }
|
5479 |
|
5480 |
|
5481 |
|
5482 | function parseSwitchCase() {
|
5483 | var test,
|
5484 | consequent = [],
|
5485 | sourceElement,
|
5486 | marker = markerCreate();
|
5487 |
|
5488 | if (matchKeyword('default')) {
|
5489 | lex();
|
5490 | test = null;
|
5491 | } else {
|
5492 | expectKeyword('case');
|
5493 | test = parseExpression();
|
5494 | }
|
5495 | expect(':');
|
5496 |
|
5497 | while (index < length) {
|
5498 | if (match('}') || matchKeyword('default') || matchKeyword('case')) {
|
5499 | break;
|
5500 | }
|
5501 | sourceElement = parseSourceElement();
|
5502 | if (typeof sourceElement === 'undefined') {
|
5503 | break;
|
5504 | }
|
5505 | consequent.push(sourceElement);
|
5506 | }
|
5507 |
|
5508 | return markerApply(marker, delegate.createSwitchCase(test, consequent));
|
5509 | }
|
5510 |
|
5511 | function parseSwitchStatement() {
|
5512 | var discriminant, cases, clause, oldInSwitch, defaultFound, marker = markerCreate();
|
5513 |
|
5514 | expectKeyword('switch');
|
5515 |
|
5516 | expect('(');
|
5517 |
|
5518 | discriminant = parseExpression();
|
5519 |
|
5520 | expect(')');
|
5521 |
|
5522 | expect('{');
|
5523 |
|
5524 | cases = [];
|
5525 |
|
5526 | if (match('}')) {
|
5527 | lex();
|
5528 | return markerApply(marker, delegate.createSwitchStatement(discriminant, cases));
|
5529 | }
|
5530 |
|
5531 | oldInSwitch = state.inSwitch;
|
5532 | state.inSwitch = true;
|
5533 | defaultFound = false;
|
5534 |
|
5535 | while (index < length) {
|
5536 | if (match('}')) {
|
5537 | break;
|
5538 | }
|
5539 | clause = parseSwitchCase();
|
5540 | if (clause.test === null) {
|
5541 | if (defaultFound) {
|
5542 | throwError({}, Messages.MultipleDefaultsInSwitch);
|
5543 | }
|
5544 | defaultFound = true;
|
5545 | }
|
5546 | cases.push(clause);
|
5547 | }
|
5548 |
|
5549 | state.inSwitch = oldInSwitch;
|
5550 |
|
5551 | expect('}');
|
5552 |
|
5553 | return markerApply(marker, delegate.createSwitchStatement(discriminant, cases));
|
5554 | }
|
5555 |
|
5556 |
|
5557 |
|
5558 | function parseThrowStatement() {
|
5559 | var argument, marker = markerCreate();
|
5560 |
|
5561 | expectKeyword('throw');
|
5562 |
|
5563 | if (peekLineTerminator()) {
|
5564 | throwError({}, Messages.NewlineAfterThrow);
|
5565 | }
|
5566 |
|
5567 | argument = parseExpression();
|
5568 |
|
5569 | consumeSemicolon();
|
5570 |
|
5571 | return markerApply(marker, delegate.createThrowStatement(argument));
|
5572 | }
|
5573 |
|
5574 |
|
5575 |
|
5576 | function parseCatchClause() {
|
5577 | var param, body, marker = markerCreate();
|
5578 |
|
5579 | expectKeyword('catch');
|
5580 |
|
5581 | expect('(');
|
5582 | if (match(')')) {
|
5583 | throwUnexpected(lookahead);
|
5584 | }
|
5585 |
|
5586 | param = parseExpression();
|
5587 |
|
5588 | if (strict && param.type === Syntax.Identifier && isRestrictedWord(param.name)) {
|
5589 | throwErrorTolerant({}, Messages.StrictCatchVariable);
|
5590 | }
|
5591 |
|
5592 | expect(')');
|
5593 | body = parseBlock();
|
5594 | return markerApply(marker, delegate.createCatchClause(param, body));
|
5595 | }
|
5596 |
|
5597 | function parseTryStatement() {
|
5598 | var block, handlers = [], finalizer = null, marker = markerCreate();
|
5599 |
|
5600 | expectKeyword('try');
|
5601 |
|
5602 | block = parseBlock();
|
5603 |
|
5604 | if (matchKeyword('catch')) {
|
5605 | handlers.push(parseCatchClause());
|
5606 | }
|
5607 |
|
5608 | if (matchKeyword('finally')) {
|
5609 | lex();
|
5610 | finalizer = parseBlock();
|
5611 | }
|
5612 |
|
5613 | if (handlers.length === 0 && !finalizer) {
|
5614 | throwError({}, Messages.NoCatchOrFinally);
|
5615 | }
|
5616 |
|
5617 | return markerApply(marker, delegate.createTryStatement(block, [], handlers, finalizer));
|
5618 | }
|
5619 |
|
5620 |
|
5621 |
|
5622 | function parseDebuggerStatement() {
|
5623 | var marker = markerCreate();
|
5624 | expectKeyword('debugger');
|
5625 |
|
5626 | consumeSemicolon();
|
5627 |
|
5628 | return markerApply(marker, delegate.createDebuggerStatement());
|
5629 | }
|
5630 |
|
5631 |
|
5632 |
|
5633 | function parseStatement() {
|
5634 | var type = lookahead.type,
|
5635 | marker,
|
5636 | expr,
|
5637 | labeledBody;
|
5638 |
|
5639 | if (type === Token.EOF) {
|
5640 | throwUnexpected(lookahead);
|
5641 | }
|
5642 |
|
5643 | if (type === Token.Punctuator) {
|
5644 | switch (lookahead.value) {
|
5645 | case ';':
|
5646 | return parseEmptyStatement();
|
5647 | case '{':
|
5648 | return parseBlock();
|
5649 | case '(':
|
5650 | return parseExpressionStatement();
|
5651 | default:
|
5652 | break;
|
5653 | }
|
5654 | }
|
5655 |
|
5656 | if (type === Token.Keyword) {
|
5657 | switch (lookahead.value) {
|
5658 | case 'break':
|
5659 | return parseBreakStatement();
|
5660 | case 'continue':
|
5661 | return parseContinueStatement();
|
5662 | case 'debugger':
|
5663 | return parseDebuggerStatement();
|
5664 | case 'do':
|
5665 | return parseDoWhileStatement();
|
5666 | case 'for':
|
5667 | return parseForStatement();
|
5668 | case 'function':
|
5669 | return parseFunctionDeclaration();
|
5670 | case 'class':
|
5671 | return parseClassDeclaration();
|
5672 | case 'if':
|
5673 | return parseIfStatement();
|
5674 | case 'return':
|
5675 | return parseReturnStatement();
|
5676 | case 'switch':
|
5677 | return parseSwitchStatement();
|
5678 | case 'throw':
|
5679 | return parseThrowStatement();
|
5680 | case 'try':
|
5681 | return parseTryStatement();
|
5682 | case 'var':
|
5683 | return parseVariableStatement();
|
5684 | case 'while':
|
5685 | return parseWhileStatement();
|
5686 | case 'with':
|
5687 | return parseWithStatement();
|
5688 | default:
|
5689 | break;
|
5690 | }
|
5691 | }
|
5692 |
|
5693 | if (matchAsyncFuncExprOrDecl()) {
|
5694 | return parseFunctionDeclaration();
|
5695 | }
|
5696 |
|
5697 | marker = markerCreate();
|
5698 | expr = parseExpression();
|
5699 |
|
5700 |
|
5701 | if ((expr.type === Syntax.Identifier) && match(':')) {
|
5702 | lex();
|
5703 |
|
5704 | if (state.labelSet.has(expr.name)) {
|
5705 | throwError({}, Messages.Redeclaration, 'Label', expr.name);
|
5706 | }
|
5707 |
|
5708 | state.labelSet.set(expr.name, true);
|
5709 | labeledBody = parseStatement();
|
5710 | state.labelSet.delete(expr.name);
|
5711 | return markerApply(marker, delegate.createLabeledStatement(expr, labeledBody));
|
5712 | }
|
5713 |
|
5714 | consumeSemicolon();
|
5715 |
|
5716 | return markerApply(marker, delegate.createExpressionStatement(expr));
|
5717 | }
|
5718 |
|
5719 |
|
5720 |
|
5721 | function parseConciseBody() {
|
5722 | if (match('{')) {
|
5723 | return parseFunctionSourceElements();
|
5724 | }
|
5725 | return parseAssignmentExpression();
|
5726 | }
|
5727 |
|
5728 | function parseFunctionSourceElements() {
|
5729 | var sourceElement, sourceElements = [], token, directive, firstRestricted,
|
5730 | oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody, oldParenthesizedCount,
|
5731 | marker = markerCreate();
|
5732 |
|
5733 | expect('{');
|
5734 |
|
5735 | while (index < length) {
|
5736 | if (lookahead.type !== Token.StringLiteral) {
|
5737 | break;
|
5738 | }
|
5739 | token = lookahead;
|
5740 |
|
5741 | sourceElement = parseSourceElement();
|
5742 | sourceElements.push(sourceElement);
|
5743 | if (sourceElement.expression.type !== Syntax.Literal) {
|
5744 |
|
5745 | break;
|
5746 | }
|
5747 | directive = source.slice(token.range[0] + 1, token.range[1] - 1);
|
5748 | if (directive === 'use strict') {
|
5749 | strict = true;
|
5750 | if (firstRestricted) {
|
5751 | throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
|
5752 | }
|
5753 | } else {
|
5754 | if (!firstRestricted && token.octal) {
|
5755 | firstRestricted = token;
|
5756 | }
|
5757 | }
|
5758 | }
|
5759 |
|
5760 | oldLabelSet = state.labelSet;
|
5761 | oldInIteration = state.inIteration;
|
5762 | oldInSwitch = state.inSwitch;
|
5763 | oldInFunctionBody = state.inFunctionBody;
|
5764 | oldParenthesizedCount = state.parenthesizedCount;
|
5765 |
|
5766 | state.labelSet = new StringMap();
|
5767 | state.inIteration = false;
|
5768 | state.inSwitch = false;
|
5769 | state.inFunctionBody = true;
|
5770 | state.parenthesizedCount = 0;
|
5771 |
|
5772 | while (index < length) {
|
5773 | if (match('}')) {
|
5774 | break;
|
5775 | }
|
5776 | sourceElement = parseSourceElement();
|
5777 | if (typeof sourceElement === 'undefined') {
|
5778 | break;
|
5779 | }
|
5780 | sourceElements.push(sourceElement);
|
5781 | }
|
5782 |
|
5783 | expect('}');
|
5784 |
|
5785 | state.labelSet = oldLabelSet;
|
5786 | state.inIteration = oldInIteration;
|
5787 | state.inSwitch = oldInSwitch;
|
5788 | state.inFunctionBody = oldInFunctionBody;
|
5789 | state.parenthesizedCount = oldParenthesizedCount;
|
5790 |
|
5791 | return markerApply(marker, delegate.createBlockStatement(sourceElements));
|
5792 | }
|
5793 |
|
5794 | function validateParam(options, param, name) {
|
5795 | if (strict) {
|
5796 | if (isRestrictedWord(name)) {
|
5797 | options.stricted = param;
|
5798 | options.message = Messages.StrictParamName;
|
5799 | }
|
5800 | if (options.paramSet.has(name)) {
|
5801 | options.stricted = param;
|
5802 | options.message = Messages.StrictParamDupe;
|
5803 | }
|
5804 | } else if (!options.firstRestricted) {
|
5805 | if (isRestrictedWord(name)) {
|
5806 | options.firstRestricted = param;
|
5807 | options.message = Messages.StrictParamName;
|
5808 | } else if (isStrictModeReservedWord(name)) {
|
5809 | options.firstRestricted = param;
|
5810 | options.message = Messages.StrictReservedWord;
|
5811 | } else if (options.paramSet.has(name)) {
|
5812 | options.firstRestricted = param;
|
5813 | options.message = Messages.StrictParamDupe;
|
5814 | }
|
5815 | }
|
5816 | options.paramSet.set(name, true);
|
5817 | }
|
5818 |
|
5819 | function parseParam(options) {
|
5820 | var marker, token, rest, param, def;
|
5821 |
|
5822 | token = lookahead;
|
5823 | if (token.value === '...') {
|
5824 | token = lex();
|
5825 | rest = true;
|
5826 | }
|
5827 |
|
5828 | if (match('[')) {
|
5829 | marker = markerCreate();
|
5830 | param = parseArrayInitialiser();
|
5831 | reinterpretAsDestructuredParameter(options, param);
|
5832 | if (match(':')) {
|
5833 | param.typeAnnotation = parseTypeAnnotation();
|
5834 | markerApply(marker, param);
|
5835 | }
|
5836 | } else if (match('{')) {
|
5837 | marker = markerCreate();
|
5838 | if (rest) {
|
5839 | throwError({}, Messages.ObjectPatternAsRestParameter);
|
5840 | }
|
5841 | param = parseObjectInitialiser();
|
5842 | reinterpretAsDestructuredParameter(options, param);
|
5843 | if (match(':')) {
|
5844 | param.typeAnnotation = parseTypeAnnotation();
|
5845 | markerApply(marker, param);
|
5846 | }
|
5847 | } else {
|
5848 | param =
|
5849 | rest
|
5850 | ? parseTypeAnnotatableIdentifier(
|
5851 | false,
|
5852 | false
|
5853 | )
|
5854 | : parseTypeAnnotatableIdentifier(
|
5855 | false,
|
5856 | true
|
5857 | );
|
5858 |
|
5859 | validateParam(options, token, token.value);
|
5860 | }
|
5861 |
|
5862 | if (match('=')) {
|
5863 | if (rest) {
|
5864 | throwErrorTolerant(lookahead, Messages.DefaultRestParameter);
|
5865 | }
|
5866 | lex();
|
5867 | def = parseAssignmentExpression();
|
5868 | ++options.defaultCount;
|
5869 | }
|
5870 |
|
5871 | if (rest) {
|
5872 | if (!match(')')) {
|
5873 | throwError({}, Messages.ParameterAfterRestParameter);
|
5874 | }
|
5875 | options.rest = param;
|
5876 | return false;
|
5877 | }
|
5878 |
|
5879 | options.params.push(param);
|
5880 | options.defaults.push(def);
|
5881 | return !match(')');
|
5882 | }
|
5883 |
|
5884 | function parseParams(firstRestricted) {
|
5885 | var options, marker = markerCreate();
|
5886 |
|
5887 | options = {
|
5888 | params: [],
|
5889 | defaultCount: 0,
|
5890 | defaults: [],
|
5891 | rest: null,
|
5892 | firstRestricted: firstRestricted
|
5893 | };
|
5894 |
|
5895 | expect('(');
|
5896 |
|
5897 | if (!match(')')) {
|
5898 | options.paramSet = new StringMap();
|
5899 | while (index < length) {
|
5900 | if (!parseParam(options)) {
|
5901 | break;
|
5902 | }
|
5903 | expect(',');
|
5904 | if (!options.rest && match(')')) {
|
5905 | break;
|
5906 | }
|
5907 | }
|
5908 | }
|
5909 |
|
5910 | expect(')');
|
5911 |
|
5912 | if (options.defaultCount === 0) {
|
5913 | options.defaults = [];
|
5914 | }
|
5915 |
|
5916 | if (match(':')) {
|
5917 | options.returnType = parseTypeAnnotation();
|
5918 | }
|
5919 |
|
5920 | return markerApply(marker, options);
|
5921 | }
|
5922 |
|
5923 | function parseFunctionDeclaration() {
|
5924 | var id, body, token, tmp, firstRestricted, message, generator, isAsync,
|
5925 | previousStrict, previousYieldAllowed, previousAwaitAllowed,
|
5926 | marker = markerCreate(), typeParameters;
|
5927 |
|
5928 | isAsync = false;
|
5929 | if (matchAsync()) {
|
5930 | lex();
|
5931 | isAsync = true;
|
5932 | }
|
5933 |
|
5934 | expectKeyword('function');
|
5935 |
|
5936 | generator = false;
|
5937 | if (match('*')) {
|
5938 | lex();
|
5939 | generator = true;
|
5940 | }
|
5941 |
|
5942 | token = lookahead;
|
5943 |
|
5944 | id = parseVariableIdentifier();
|
5945 |
|
5946 | if (match('<')) {
|
5947 | typeParameters = parseTypeParameterDeclaration();
|
5948 | }
|
5949 |
|
5950 | if (strict) {
|
5951 | if (isRestrictedWord(token.value)) {
|
5952 | throwErrorTolerant(token, Messages.StrictFunctionName);
|
5953 | }
|
5954 | } else {
|
5955 | if (isRestrictedWord(token.value)) {
|
5956 | firstRestricted = token;
|
5957 | message = Messages.StrictFunctionName;
|
5958 | } else if (isStrictModeReservedWord(token.value)) {
|
5959 | firstRestricted = token;
|
5960 | message = Messages.StrictReservedWord;
|
5961 | }
|
5962 | }
|
5963 |
|
5964 | tmp = parseParams(firstRestricted);
|
5965 | firstRestricted = tmp.firstRestricted;
|
5966 | if (tmp.message) {
|
5967 | message = tmp.message;
|
5968 | }
|
5969 |
|
5970 | previousStrict = strict;
|
5971 | previousYieldAllowed = state.yieldAllowed;
|
5972 | state.yieldAllowed = generator;
|
5973 | previousAwaitAllowed = state.awaitAllowed;
|
5974 | state.awaitAllowed = isAsync;
|
5975 |
|
5976 | body = parseFunctionSourceElements();
|
5977 |
|
5978 | if (strict && firstRestricted) {
|
5979 | throwError(firstRestricted, message);
|
5980 | }
|
5981 | if (strict && tmp.stricted) {
|
5982 | throwErrorTolerant(tmp.stricted, message);
|
5983 | }
|
5984 | strict = previousStrict;
|
5985 | state.yieldAllowed = previousYieldAllowed;
|
5986 | state.awaitAllowed = previousAwaitAllowed;
|
5987 |
|
5988 | return markerApply(
|
5989 | marker,
|
5990 | delegate.createFunctionDeclaration(
|
5991 | id,
|
5992 | tmp.params,
|
5993 | tmp.defaults,
|
5994 | body,
|
5995 | tmp.rest,
|
5996 | generator,
|
5997 | false,
|
5998 | isAsync,
|
5999 | tmp.returnType,
|
6000 | typeParameters
|
6001 | )
|
6002 | );
|
6003 | }
|
6004 |
|
6005 | function parseFunctionExpression() {
|
6006 | var token, id = null, firstRestricted, message, tmp, body, generator, isAsync,
|
6007 | previousStrict, previousYieldAllowed, previousAwaitAllowed,
|
6008 | marker = markerCreate(), typeParameters;
|
6009 |
|
6010 | isAsync = false;
|
6011 | if (matchAsync()) {
|
6012 | lex();
|
6013 | isAsync = true;
|
6014 | }
|
6015 |
|
6016 | expectKeyword('function');
|
6017 |
|
6018 | generator = false;
|
6019 |
|
6020 | if (match('*')) {
|
6021 | lex();
|
6022 | generator = true;
|
6023 | }
|
6024 |
|
6025 | if (!match('(')) {
|
6026 | if (!match('<')) {
|
6027 | token = lookahead;
|
6028 | id = parseVariableIdentifier();
|
6029 |
|
6030 | if (strict) {
|
6031 | if (isRestrictedWord(token.value)) {
|
6032 | throwErrorTolerant(token, Messages.StrictFunctionName);
|
6033 | }
|
6034 | } else {
|
6035 | if (isRestrictedWord(token.value)) {
|
6036 | firstRestricted = token;
|
6037 | message = Messages.StrictFunctionName;
|
6038 | } else if (isStrictModeReservedWord(token.value)) {
|
6039 | firstRestricted = token;
|
6040 | message = Messages.StrictReservedWord;
|
6041 | }
|
6042 | }
|
6043 | }
|
6044 |
|
6045 | if (match('<')) {
|
6046 | typeParameters = parseTypeParameterDeclaration();
|
6047 | }
|
6048 | }
|
6049 |
|
6050 | tmp = parseParams(firstRestricted);
|
6051 | firstRestricted = tmp.firstRestricted;
|
6052 | if (tmp.message) {
|
6053 | message = tmp.message;
|
6054 | }
|
6055 |
|
6056 | previousStrict = strict;
|
6057 | previousYieldAllowed = state.yieldAllowed;
|
6058 | state.yieldAllowed = generator;
|
6059 | previousAwaitAllowed = state.awaitAllowed;
|
6060 | state.awaitAllowed = isAsync;
|
6061 |
|
6062 | body = parseFunctionSourceElements();
|
6063 |
|
6064 | if (strict && firstRestricted) {
|
6065 | throwError(firstRestricted, message);
|
6066 | }
|
6067 | if (strict && tmp.stricted) {
|
6068 | throwErrorTolerant(tmp.stricted, message);
|
6069 | }
|
6070 | strict = previousStrict;
|
6071 | state.yieldAllowed = previousYieldAllowed;
|
6072 | state.awaitAllowed = previousAwaitAllowed;
|
6073 |
|
6074 | return markerApply(
|
6075 | marker,
|
6076 | delegate.createFunctionExpression(
|
6077 | id,
|
6078 | tmp.params,
|
6079 | tmp.defaults,
|
6080 | body,
|
6081 | tmp.rest,
|
6082 | generator,
|
6083 | false,
|
6084 | isAsync,
|
6085 | tmp.returnType,
|
6086 | typeParameters
|
6087 | )
|
6088 | );
|
6089 | }
|
6090 |
|
6091 | function parseYieldExpression() {
|
6092 | var delegateFlag, expr, marker = markerCreate();
|
6093 |
|
6094 | expectKeyword('yield', !strict);
|
6095 |
|
6096 | delegateFlag = false;
|
6097 | if (match('*')) {
|
6098 | lex();
|
6099 | delegateFlag = true;
|
6100 | }
|
6101 |
|
6102 | expr = parseAssignmentExpression();
|
6103 |
|
6104 | return markerApply(marker, delegate.createYieldExpression(expr, delegateFlag));
|
6105 | }
|
6106 |
|
6107 | function parseAwaitExpression() {
|
6108 | var expr, marker = markerCreate();
|
6109 | expectContextualKeyword('await');
|
6110 | expr = parseAssignmentExpression();
|
6111 | return markerApply(marker, delegate.createAwaitExpression(expr));
|
6112 | }
|
6113 |
|
6114 |
|
6115 |
|
6116 |
|
6117 |
|
6118 |
|
6119 |
|
6120 |
|
6121 | function specialMethod(methodDefinition) {
|
6122 | return methodDefinition.kind === 'get' ||
|
6123 | methodDefinition.kind === 'set' ||
|
6124 | methodDefinition.value.generator;
|
6125 | }
|
6126 |
|
6127 | function parseMethodDefinition(key, isStatic, generator, computed) {
|
6128 | var token, param, propType,
|
6129 | isAsync, typeParameters, tokenValue, returnType;
|
6130 |
|
6131 | propType = isStatic ? ClassPropertyType.static : ClassPropertyType.prototype;
|
6132 |
|
6133 | if (generator) {
|
6134 | return delegate.createMethodDefinition(
|
6135 | propType,
|
6136 | '',
|
6137 | key,
|
6138 | parsePropertyMethodFunction({ generator: true }),
|
6139 | computed
|
6140 | );
|
6141 | }
|
6142 |
|
6143 | tokenValue = key.type === 'Identifier' && key.name;
|
6144 |
|
6145 | if (tokenValue === 'get' && !match('(')) {
|
6146 | key = parseObjectPropertyKey();
|
6147 |
|
6148 | expect('(');
|
6149 | expect(')');
|
6150 | if (match(':')) {
|
6151 | returnType = parseTypeAnnotation();
|
6152 | }
|
6153 | return delegate.createMethodDefinition(
|
6154 | propType,
|
6155 | 'get',
|
6156 | key,
|
6157 | parsePropertyFunction({ generator: false, returnType: returnType }),
|
6158 | computed
|
6159 | );
|
6160 | }
|
6161 | if (tokenValue === 'set' && !match('(')) {
|
6162 | key = parseObjectPropertyKey();
|
6163 |
|
6164 | expect('(');
|
6165 | token = lookahead;
|
6166 | param = [ parseTypeAnnotatableIdentifier() ];
|
6167 | expect(')');
|
6168 | if (match(':')) {
|
6169 | returnType = parseTypeAnnotation();
|
6170 | }
|
6171 | return delegate.createMethodDefinition(
|
6172 | propType,
|
6173 | 'set',
|
6174 | key,
|
6175 | parsePropertyFunction({
|
6176 | params: param,
|
6177 | generator: false,
|
6178 | name: token,
|
6179 | returnType: returnType
|
6180 | }),
|
6181 | computed
|
6182 | );
|
6183 | }
|
6184 |
|
6185 | if (match('<')) {
|
6186 | typeParameters = parseTypeParameterDeclaration();
|
6187 | }
|
6188 |
|
6189 | isAsync = tokenValue === 'async' && !match('(');
|
6190 | if (isAsync) {
|
6191 | key = parseObjectPropertyKey();
|
6192 | }
|
6193 |
|
6194 | return delegate.createMethodDefinition(
|
6195 | propType,
|
6196 | '',
|
6197 | key,
|
6198 | parsePropertyMethodFunction({
|
6199 | generator: false,
|
6200 | async: isAsync,
|
6201 | typeParameters: typeParameters
|
6202 | }),
|
6203 | computed
|
6204 | );
|
6205 | }
|
6206 |
|
6207 | function parseClassProperty(key, computed, isStatic) {
|
6208 | var typeAnnotation;
|
6209 |
|
6210 | typeAnnotation = parseTypeAnnotation();
|
6211 | expect(';');
|
6212 |
|
6213 | return delegate.createClassProperty(
|
6214 | key,
|
6215 | typeAnnotation,
|
6216 | computed,
|
6217 | isStatic
|
6218 | );
|
6219 | }
|
6220 |
|
6221 | function parseClassElement() {
|
6222 | var computed = false, generator = false, key, marker = markerCreate(),
|
6223 | isStatic = false, possiblyOpenBracketToken;
|
6224 | if (match(';')) {
|
6225 | lex();
|
6226 | return undefined;
|
6227 | }
|
6228 |
|
6229 | if (lookahead.value === 'static') {
|
6230 | lex();
|
6231 | isStatic = true;
|
6232 | }
|
6233 |
|
6234 | if (match('*')) {
|
6235 | lex();
|
6236 | generator = true;
|
6237 | }
|
6238 |
|
6239 | possiblyOpenBracketToken = lookahead;
|
6240 | if (matchContextualKeyword('get') || matchContextualKeyword('set')) {
|
6241 | possiblyOpenBracketToken = lookahead2();
|
6242 | }
|
6243 |
|
6244 | if (possiblyOpenBracketToken.type === Token.Punctuator
|
6245 | && possiblyOpenBracketToken.value === '[') {
|
6246 | computed = true;
|
6247 | }
|
6248 |
|
6249 | key = parseObjectPropertyKey();
|
6250 |
|
6251 | if (!generator && lookahead.value === ':') {
|
6252 | return markerApply(marker, parseClassProperty(key, computed, isStatic));
|
6253 | }
|
6254 |
|
6255 | return markerApply(marker, parseMethodDefinition(
|
6256 | key,
|
6257 | isStatic,
|
6258 | generator,
|
6259 | computed
|
6260 | ));
|
6261 | }
|
6262 |
|
6263 | function parseClassBody() {
|
6264 | var classElement, classElements = [], existingProps = {},
|
6265 | marker = markerCreate(), propName, propType;
|
6266 |
|
6267 | existingProps[ClassPropertyType.static] = new StringMap();
|
6268 | existingProps[ClassPropertyType.prototype] = new StringMap();
|
6269 |
|
6270 | expect('{');
|
6271 |
|
6272 | while (index < length) {
|
6273 | if (match('}')) {
|
6274 | break;
|
6275 | }
|
6276 | classElement = parseClassElement(existingProps);
|
6277 |
|
6278 | if (typeof classElement !== 'undefined') {
|
6279 | classElements.push(classElement);
|
6280 |
|
6281 | propName = !classElement.computed && getFieldName(classElement.key);
|
6282 | if (propName !== false) {
|
6283 | propType = classElement.static ?
|
6284 | ClassPropertyType.static :
|
6285 | ClassPropertyType.prototype;
|
6286 |
|
6287 | if (classElement.type === Syntax.MethodDefinition) {
|
6288 | if (propName === 'constructor' && !classElement.static) {
|
6289 | if (specialMethod(classElement)) {
|
6290 | throwError(classElement, Messages.IllegalClassConstructorProperty);
|
6291 | }
|
6292 | if (existingProps[ClassPropertyType.prototype].has('constructor')) {
|
6293 | throwError(classElement.key, Messages.IllegalDuplicateClassProperty);
|
6294 | }
|
6295 | }
|
6296 | existingProps[propType].set(propName, true);
|
6297 | }
|
6298 | }
|
6299 | }
|
6300 | }
|
6301 |
|
6302 | expect('}');
|
6303 |
|
6304 | return markerApply(marker, delegate.createClassBody(classElements));
|
6305 | }
|
6306 |
|
6307 | function parseClassImplements() {
|
6308 | var id, implemented = [], marker, typeParameters;
|
6309 | if (strict) {
|
6310 | expectKeyword('implements');
|
6311 | } else {
|
6312 | expectContextualKeyword('implements');
|
6313 | }
|
6314 | while (index < length) {
|
6315 | marker = markerCreate();
|
6316 | id = parseVariableIdentifier();
|
6317 | if (match('<')) {
|
6318 | typeParameters = parseTypeParameterInstantiation();
|
6319 | } else {
|
6320 | typeParameters = null;
|
6321 | }
|
6322 | implemented.push(markerApply(marker, delegate.createClassImplements(
|
6323 | id,
|
6324 | typeParameters
|
6325 | )));
|
6326 | if (!match(',')) {
|
6327 | break;
|
6328 | }
|
6329 | expect(',');
|
6330 | }
|
6331 | return implemented;
|
6332 | }
|
6333 |
|
6334 | function parseClassExpression() {
|
6335 | var id, implemented, previousYieldAllowed, superClass = null,
|
6336 | superTypeParameters, marker = markerCreate(), typeParameters,
|
6337 | matchImplements;
|
6338 |
|
6339 | expectKeyword('class');
|
6340 |
|
6341 | matchImplements =
|
6342 | strict
|
6343 | ? matchKeyword('implements')
|
6344 | : matchContextualKeyword('implements');
|
6345 |
|
6346 | if (!matchKeyword('extends') && !matchImplements && !match('{')) {
|
6347 | id = parseVariableIdentifier();
|
6348 | }
|
6349 |
|
6350 | if (match('<')) {
|
6351 | typeParameters = parseTypeParameterDeclaration();
|
6352 | }
|
6353 |
|
6354 | if (matchKeyword('extends')) {
|
6355 | expectKeyword('extends');
|
6356 | previousYieldAllowed = state.yieldAllowed;
|
6357 | state.yieldAllowed = false;
|
6358 | superClass = parseLeftHandSideExpressionAllowCall();
|
6359 | if (match('<')) {
|
6360 | superTypeParameters = parseTypeParameterInstantiation();
|
6361 | }
|
6362 | state.yieldAllowed = previousYieldAllowed;
|
6363 | }
|
6364 |
|
6365 | if (strict ? matchKeyword('implements') : matchContextualKeyword('implements')) {
|
6366 | implemented = parseClassImplements();
|
6367 | }
|
6368 |
|
6369 | return markerApply(marker, delegate.createClassExpression(
|
6370 | id,
|
6371 | superClass,
|
6372 | parseClassBody(),
|
6373 | typeParameters,
|
6374 | superTypeParameters,
|
6375 | implemented
|
6376 | ));
|
6377 | }
|
6378 |
|
6379 | function parseClassDeclaration() {
|
6380 | var id, implemented, previousYieldAllowed, superClass = null,
|
6381 | superTypeParameters, marker = markerCreate(), typeParameters;
|
6382 |
|
6383 | expectKeyword('class');
|
6384 |
|
6385 | id = parseVariableIdentifier();
|
6386 |
|
6387 | if (match('<')) {
|
6388 | typeParameters = parseTypeParameterDeclaration();
|
6389 | }
|
6390 |
|
6391 | if (matchKeyword('extends')) {
|
6392 | expectKeyword('extends');
|
6393 | previousYieldAllowed = state.yieldAllowed;
|
6394 | state.yieldAllowed = false;
|
6395 | superClass = parseLeftHandSideExpressionAllowCall();
|
6396 | if (match('<')) {
|
6397 | superTypeParameters = parseTypeParameterInstantiation();
|
6398 | }
|
6399 | state.yieldAllowed = previousYieldAllowed;
|
6400 | }
|
6401 |
|
6402 | if (strict ? matchKeyword('implements') : matchContextualKeyword('implements')) {
|
6403 | implemented = parseClassImplements();
|
6404 | }
|
6405 |
|
6406 | return markerApply(marker, delegate.createClassDeclaration(
|
6407 | id,
|
6408 | superClass,
|
6409 | parseClassBody(),
|
6410 | typeParameters,
|
6411 | superTypeParameters,
|
6412 | implemented
|
6413 | ));
|
6414 | }
|
6415 |
|
6416 |
|
6417 |
|
6418 | function parseSourceElement() {
|
6419 | var token;
|
6420 | if (lookahead.type === Token.Keyword) {
|
6421 | switch (lookahead.value) {
|
6422 | case 'const':
|
6423 | case 'let':
|
6424 | return parseConstLetDeclaration(lookahead.value);
|
6425 | case 'function':
|
6426 | return parseFunctionDeclaration();
|
6427 | case 'export':
|
6428 | throwErrorTolerant({}, Messages.IllegalExportDeclaration);
|
6429 | return parseExportDeclaration();
|
6430 | case 'import':
|
6431 | throwErrorTolerant({}, Messages.IllegalImportDeclaration);
|
6432 | return parseImportDeclaration();
|
6433 | case 'interface':
|
6434 | if (lookahead2().type === Token.Identifier) {
|
6435 | return parseInterface();
|
6436 | }
|
6437 | return parseStatement();
|
6438 | default:
|
6439 | return parseStatement();
|
6440 | }
|
6441 | }
|
6442 |
|
6443 | if (matchContextualKeyword('type')
|
6444 | && lookahead2().type === Token.Identifier) {
|
6445 | return parseTypeAlias();
|
6446 | }
|
6447 |
|
6448 | if (matchContextualKeyword('interface')
|
6449 | && lookahead2().type === Token.Identifier) {
|
6450 | return parseInterface();
|
6451 | }
|
6452 |
|
6453 | if (matchContextualKeyword('declare')) {
|
6454 | token = lookahead2();
|
6455 | if (token.type === Token.Keyword) {
|
6456 | switch (token.value) {
|
6457 | case 'class':
|
6458 | return parseDeclareClass();
|
6459 | case 'function':
|
6460 | return parseDeclareFunction();
|
6461 | case 'var':
|
6462 | return parseDeclareVariable();
|
6463 | }
|
6464 | } else if (token.type === Token.Identifier
|
6465 | && token.value === 'module') {
|
6466 | return parseDeclareModule();
|
6467 | }
|
6468 | }
|
6469 |
|
6470 | if (lookahead.type !== Token.EOF) {
|
6471 | return parseStatement();
|
6472 | }
|
6473 | }
|
6474 |
|
6475 | function parseProgramElement() {
|
6476 | var isModule = extra.sourceType === 'module' || extra.sourceType === 'nonStrictModule';
|
6477 |
|
6478 | if (isModule && lookahead.type === Token.Keyword) {
|
6479 | switch (lookahead.value) {
|
6480 | case 'export':
|
6481 | return parseExportDeclaration();
|
6482 | case 'import':
|
6483 | return parseImportDeclaration();
|
6484 | }
|
6485 | }
|
6486 |
|
6487 | return parseSourceElement();
|
6488 | }
|
6489 |
|
6490 | function parseProgramElements() {
|
6491 | var sourceElement, sourceElements = [], token, directive, firstRestricted;
|
6492 |
|
6493 | while (index < length) {
|
6494 | token = lookahead;
|
6495 | if (token.type !== Token.StringLiteral) {
|
6496 | break;
|
6497 | }
|
6498 |
|
6499 | sourceElement = parseProgramElement();
|
6500 | sourceElements.push(sourceElement);
|
6501 | if (sourceElement.expression.type !== Syntax.Literal) {
|
6502 |
|
6503 | break;
|
6504 | }
|
6505 | directive = source.slice(token.range[0] + 1, token.range[1] - 1);
|
6506 | if (directive === 'use strict') {
|
6507 | strict = true;
|
6508 | if (firstRestricted) {
|
6509 | throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
|
6510 | }
|
6511 | } else {
|
6512 | if (!firstRestricted && token.octal) {
|
6513 | firstRestricted = token;
|
6514 | }
|
6515 | }
|
6516 | }
|
6517 |
|
6518 | while (index < length) {
|
6519 | sourceElement = parseProgramElement();
|
6520 | if (typeof sourceElement === 'undefined') {
|
6521 | break;
|
6522 | }
|
6523 | sourceElements.push(sourceElement);
|
6524 | }
|
6525 | return sourceElements;
|
6526 | }
|
6527 |
|
6528 | function parseProgram() {
|
6529 | var body, marker = markerCreate();
|
6530 | strict = extra.sourceType === 'module';
|
6531 | peek();
|
6532 | body = parseProgramElements();
|
6533 | return markerApply(marker, delegate.createProgram(body));
|
6534 | }
|
6535 |
|
6536 |
|
6537 |
|
6538 | XHTMLEntities = {
|
6539 | quot: '\u0022',
|
6540 | amp: '&',
|
6541 | apos: '\u0027',
|
6542 | lt: '<',
|
6543 | gt: '>',
|
6544 | nbsp: '\u00A0',
|
6545 | iexcl: '\u00A1',
|
6546 | cent: '\u00A2',
|
6547 | pound: '\u00A3',
|
6548 | curren: '\u00A4',
|
6549 | yen: '\u00A5',
|
6550 | brvbar: '\u00A6',
|
6551 | sect: '\u00A7',
|
6552 | uml: '\u00A8',
|
6553 | copy: '\u00A9',
|
6554 | ordf: '\u00AA',
|
6555 | laquo: '\u00AB',
|
6556 | not: '\u00AC',
|
6557 | shy: '\u00AD',
|
6558 | reg: '\u00AE',
|
6559 | macr: '\u00AF',
|
6560 | deg: '\u00B0',
|
6561 | plusmn: '\u00B1',
|
6562 | sup2: '\u00B2',
|
6563 | sup3: '\u00B3',
|
6564 | acute: '\u00B4',
|
6565 | micro: '\u00B5',
|
6566 | para: '\u00B6',
|
6567 | middot: '\u00B7',
|
6568 | cedil: '\u00B8',
|
6569 | sup1: '\u00B9',
|
6570 | ordm: '\u00BA',
|
6571 | raquo: '\u00BB',
|
6572 | frac14: '\u00BC',
|
6573 | frac12: '\u00BD',
|
6574 | frac34: '\u00BE',
|
6575 | iquest: '\u00BF',
|
6576 | Agrave: '\u00C0',
|
6577 | Aacute: '\u00C1',
|
6578 | Acirc: '\u00C2',
|
6579 | Atilde: '\u00C3',
|
6580 | Auml: '\u00C4',
|
6581 | Aring: '\u00C5',
|
6582 | AElig: '\u00C6',
|
6583 | Ccedil: '\u00C7',
|
6584 | Egrave: '\u00C8',
|
6585 | Eacute: '\u00C9',
|
6586 | Ecirc: '\u00CA',
|
6587 | Euml: '\u00CB',
|
6588 | Igrave: '\u00CC',
|
6589 | Iacute: '\u00CD',
|
6590 | Icirc: '\u00CE',
|
6591 | Iuml: '\u00CF',
|
6592 | ETH: '\u00D0',
|
6593 | Ntilde: '\u00D1',
|
6594 | Ograve: '\u00D2',
|
6595 | Oacute: '\u00D3',
|
6596 | Ocirc: '\u00D4',
|
6597 | Otilde: '\u00D5',
|
6598 | Ouml: '\u00D6',
|
6599 | times: '\u00D7',
|
6600 | Oslash: '\u00D8',
|
6601 | Ugrave: '\u00D9',
|
6602 | Uacute: '\u00DA',
|
6603 | Ucirc: '\u00DB',
|
6604 | Uuml: '\u00DC',
|
6605 | Yacute: '\u00DD',
|
6606 | THORN: '\u00DE',
|
6607 | szlig: '\u00DF',
|
6608 | agrave: '\u00E0',
|
6609 | aacute: '\u00E1',
|
6610 | acirc: '\u00E2',
|
6611 | atilde: '\u00E3',
|
6612 | auml: '\u00E4',
|
6613 | aring: '\u00E5',
|
6614 | aelig: '\u00E6',
|
6615 | ccedil: '\u00E7',
|
6616 | egrave: '\u00E8',
|
6617 | eacute: '\u00E9',
|
6618 | ecirc: '\u00EA',
|
6619 | euml: '\u00EB',
|
6620 | igrave: '\u00EC',
|
6621 | iacute: '\u00ED',
|
6622 | icirc: '\u00EE',
|
6623 | iuml: '\u00EF',
|
6624 | eth: '\u00F0',
|
6625 | ntilde: '\u00F1',
|
6626 | ograve: '\u00F2',
|
6627 | oacute: '\u00F3',
|
6628 | ocirc: '\u00F4',
|
6629 | otilde: '\u00F5',
|
6630 | ouml: '\u00F6',
|
6631 | divide: '\u00F7',
|
6632 | oslash: '\u00F8',
|
6633 | ugrave: '\u00F9',
|
6634 | uacute: '\u00FA',
|
6635 | ucirc: '\u00FB',
|
6636 | uuml: '\u00FC',
|
6637 | yacute: '\u00FD',
|
6638 | thorn: '\u00FE',
|
6639 | yuml: '\u00FF',
|
6640 | OElig: '\u0152',
|
6641 | oelig: '\u0153',
|
6642 | Scaron: '\u0160',
|
6643 | scaron: '\u0161',
|
6644 | Yuml: '\u0178',
|
6645 | fnof: '\u0192',
|
6646 | circ: '\u02C6',
|
6647 | tilde: '\u02DC',
|
6648 | Alpha: '\u0391',
|
6649 | Beta: '\u0392',
|
6650 | Gamma: '\u0393',
|
6651 | Delta: '\u0394',
|
6652 | Epsilon: '\u0395',
|
6653 | Zeta: '\u0396',
|
6654 | Eta: '\u0397',
|
6655 | Theta: '\u0398',
|
6656 | Iota: '\u0399',
|
6657 | Kappa: '\u039A',
|
6658 | Lambda: '\u039B',
|
6659 | Mu: '\u039C',
|
6660 | Nu: '\u039D',
|
6661 | Xi: '\u039E',
|
6662 | Omicron: '\u039F',
|
6663 | Pi: '\u03A0',
|
6664 | Rho: '\u03A1',
|
6665 | Sigma: '\u03A3',
|
6666 | Tau: '\u03A4',
|
6667 | Upsilon: '\u03A5',
|
6668 | Phi: '\u03A6',
|
6669 | Chi: '\u03A7',
|
6670 | Psi: '\u03A8',
|
6671 | Omega: '\u03A9',
|
6672 | alpha: '\u03B1',
|
6673 | beta: '\u03B2',
|
6674 | gamma: '\u03B3',
|
6675 | delta: '\u03B4',
|
6676 | epsilon: '\u03B5',
|
6677 | zeta: '\u03B6',
|
6678 | eta: '\u03B7',
|
6679 | theta: '\u03B8',
|
6680 | iota: '\u03B9',
|
6681 | kappa: '\u03BA',
|
6682 | lambda: '\u03BB',
|
6683 | mu: '\u03BC',
|
6684 | nu: '\u03BD',
|
6685 | xi: '\u03BE',
|
6686 | omicron: '\u03BF',
|
6687 | pi: '\u03C0',
|
6688 | rho: '\u03C1',
|
6689 | sigmaf: '\u03C2',
|
6690 | sigma: '\u03C3',
|
6691 | tau: '\u03C4',
|
6692 | upsilon: '\u03C5',
|
6693 | phi: '\u03C6',
|
6694 | chi: '\u03C7',
|
6695 | psi: '\u03C8',
|
6696 | omega: '\u03C9',
|
6697 | thetasym: '\u03D1',
|
6698 | upsih: '\u03D2',
|
6699 | piv: '\u03D6',
|
6700 | ensp: '\u2002',
|
6701 | emsp: '\u2003',
|
6702 | thinsp: '\u2009',
|
6703 | zwnj: '\u200C',
|
6704 | zwj: '\u200D',
|
6705 | lrm: '\u200E',
|
6706 | rlm: '\u200F',
|
6707 | ndash: '\u2013',
|
6708 | mdash: '\u2014',
|
6709 | lsquo: '\u2018',
|
6710 | rsquo: '\u2019',
|
6711 | sbquo: '\u201A',
|
6712 | ldquo: '\u201C',
|
6713 | rdquo: '\u201D',
|
6714 | bdquo: '\u201E',
|
6715 | dagger: '\u2020',
|
6716 | Dagger: '\u2021',
|
6717 | bull: '\u2022',
|
6718 | hellip: '\u2026',
|
6719 | permil: '\u2030',
|
6720 | prime: '\u2032',
|
6721 | Prime: '\u2033',
|
6722 | lsaquo: '\u2039',
|
6723 | rsaquo: '\u203A',
|
6724 | oline: '\u203E',
|
6725 | frasl: '\u2044',
|
6726 | euro: '\u20AC',
|
6727 | image: '\u2111',
|
6728 | weierp: '\u2118',
|
6729 | real: '\u211C',
|
6730 | trade: '\u2122',
|
6731 | alefsym: '\u2135',
|
6732 | larr: '\u2190',
|
6733 | uarr: '\u2191',
|
6734 | rarr: '\u2192',
|
6735 | darr: '\u2193',
|
6736 | harr: '\u2194',
|
6737 | crarr: '\u21B5',
|
6738 | lArr: '\u21D0',
|
6739 | uArr: '\u21D1',
|
6740 | rArr: '\u21D2',
|
6741 | dArr: '\u21D3',
|
6742 | hArr: '\u21D4',
|
6743 | forall: '\u2200',
|
6744 | part: '\u2202',
|
6745 | exist: '\u2203',
|
6746 | empty: '\u2205',
|
6747 | nabla: '\u2207',
|
6748 | isin: '\u2208',
|
6749 | notin: '\u2209',
|
6750 | ni: '\u220B',
|
6751 | prod: '\u220F',
|
6752 | sum: '\u2211',
|
6753 | minus: '\u2212',
|
6754 | lowast: '\u2217',
|
6755 | radic: '\u221A',
|
6756 | prop: '\u221D',
|
6757 | infin: '\u221E',
|
6758 | ang: '\u2220',
|
6759 | and: '\u2227',
|
6760 | or: '\u2228',
|
6761 | cap: '\u2229',
|
6762 | cup: '\u222A',
|
6763 | 'int': '\u222B',
|
6764 | there4: '\u2234',
|
6765 | sim: '\u223C',
|
6766 | cong: '\u2245',
|
6767 | asymp: '\u2248',
|
6768 | ne: '\u2260',
|
6769 | equiv: '\u2261',
|
6770 | le: '\u2264',
|
6771 | ge: '\u2265',
|
6772 | sub: '\u2282',
|
6773 | sup: '\u2283',
|
6774 | nsub: '\u2284',
|
6775 | sube: '\u2286',
|
6776 | supe: '\u2287',
|
6777 | oplus: '\u2295',
|
6778 | otimes: '\u2297',
|
6779 | perp: '\u22A5',
|
6780 | sdot: '\u22C5',
|
6781 | lceil: '\u2308',
|
6782 | rceil: '\u2309',
|
6783 | lfloor: '\u230A',
|
6784 | rfloor: '\u230B',
|
6785 | lang: '\u2329',
|
6786 | rang: '\u232A',
|
6787 | loz: '\u25CA',
|
6788 | spades: '\u2660',
|
6789 | clubs: '\u2663',
|
6790 | hearts: '\u2665',
|
6791 | diams: '\u2666'
|
6792 | };
|
6793 |
|
6794 | function getQualifiedJSXName(object) {
|
6795 | if (object.type === Syntax.JSXIdentifier) {
|
6796 | return object.name;
|
6797 | }
|
6798 | if (object.type === Syntax.JSXNamespacedName) {
|
6799 | return object.namespace.name + ':' + object.name.name;
|
6800 | }
|
6801 |
|
6802 | if (object.type === Syntax.JSXMemberExpression) {
|
6803 | return (
|
6804 | getQualifiedJSXName(object.object) + '.' +
|
6805 | getQualifiedJSXName(object.property)
|
6806 | );
|
6807 | }
|
6808 |
|
6809 | throwUnexpected(object);
|
6810 | }
|
6811 |
|
6812 | function isJSXIdentifierStart(ch) {
|
6813 |
|
6814 | return (ch !== 92) && isIdentifierStart(ch);
|
6815 | }
|
6816 |
|
6817 | function isJSXIdentifierPart(ch) {
|
6818 |
|
6819 | return (ch !== 92) && (ch === 45 || isIdentifierPart(ch));
|
6820 | }
|
6821 |
|
6822 | function scanJSXIdentifier() {
|
6823 | var ch, start, value = '';
|
6824 |
|
6825 | start = index;
|
6826 | while (index < length) {
|
6827 | ch = source.charCodeAt(index);
|
6828 | if (!isJSXIdentifierPart(ch)) {
|
6829 | break;
|
6830 | }
|
6831 | value += source[index++];
|
6832 | }
|
6833 |
|
6834 | return {
|
6835 | type: Token.JSXIdentifier,
|
6836 | value: value,
|
6837 | lineNumber: lineNumber,
|
6838 | lineStart: lineStart,
|
6839 | range: [start, index]
|
6840 | };
|
6841 | }
|
6842 |
|
6843 | function scanJSXEntity() {
|
6844 | var ch, str = '', start = index, count = 0, code;
|
6845 | ch = source[index];
|
6846 | assert(ch === '&', 'Entity must start with an ampersand');
|
6847 | index++;
|
6848 | while (index < length && count++ < 10) {
|
6849 | ch = source[index++];
|
6850 | if (ch === ';') {
|
6851 | break;
|
6852 | }
|
6853 | str += ch;
|
6854 | }
|
6855 |
|
6856 | // Well-formed entity (ending was found).
|
6857 | if (ch === ';') {
|
6858 | // Numeric entity.
|
6859 | if (str[0] === '#') {
|
6860 | if (str[1] === 'x') {
|
6861 | code = +('0' + str.substr(1));
|
6862 | } else {
|
6863 | // Removing leading zeros in order to avoid treating as octal in old browsers.
|
6864 | code = +str.substr(1).replace(Regex.LeadingZeros, '');
|
6865 | }
|
6866 |
|
6867 | if (!isNaN(code)) {
|
6868 | return String.fromCharCode(code);
|
6869 | }
|
6870 | /* istanbul ignore else */
|
6871 | } else if (XHTMLEntities[str]) {
|
6872 | return XHTMLEntities[str];
|
6873 | }
|
6874 | }
|
6875 |
|
6876 | // Treat non-entity sequences as regular text.
|
6877 | index = start + 1;
|
6878 | return '&';
|
6879 | }
|
6880 |
|
6881 | function scanJSXText(stopChars) {
|
6882 | var ch, str = '', start;
|
6883 | start = index;
|
6884 | while (index < length) {
|
6885 | ch = source[index];
|
6886 | if (stopChars.indexOf(ch) !== -1) {
|
6887 | break;
|
6888 | }
|
6889 | if (ch === '&') {
|
6890 | str += scanJSXEntity();
|
6891 | } else {
|
6892 | index++;
|
6893 | if (ch === '\r' && source[index] === '\n') {
|
6894 | str += ch;
|
6895 | ch = source[index];
|
6896 | index++;
|
6897 | }
|
6898 | if (isLineTerminator(ch.charCodeAt(0))) {
|
6899 | ++lineNumber;
|
6900 | lineStart = index;
|
6901 | }
|
6902 | str += ch;
|
6903 | }
|
6904 | }
|
6905 | return {
|
6906 | type: Token.JSXText,
|
6907 | value: str,
|
6908 | lineNumber: lineNumber,
|
6909 | lineStart: lineStart,
|
6910 | range: [start, index]
|
6911 | };
|
6912 | }
|
6913 |
|
6914 | function scanJSXStringLiteral() {
|
6915 | var innerToken, quote, start;
|
6916 |
|
6917 | quote = source[index];
|
6918 | assert((quote === '\'' || quote === '"'),
|
6919 | 'String literal must starts with a quote');
|
6920 |
|
6921 | start = index;
|
6922 | ++index;
|
6923 |
|
6924 | innerToken = scanJSXText([quote]);
|
6925 |
|
6926 | if (quote !== source[index]) {
|
6927 | throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
|
6928 | }
|
6929 |
|
6930 | ++index;
|
6931 |
|
6932 | innerToken.range = [start, index];
|
6933 |
|
6934 | return innerToken;
|
6935 | }
|
6936 |
|
6937 | /**
|
6938 | * Between JSX opening and closing tags (e.g. <foo>HERE</foo>), anything that
|
6939 | * is not another JSX tag and is not an expression wrapped by {} is text.
|
6940 | */
|
6941 | function advanceJSXChild() {
|
6942 | var ch = source.charCodeAt(index);
|
6943 |
|
6944 | // '<' 60, '>' 62, '{' 123, '}' 125
|
6945 | if (ch !== 60 && ch !== 62 && ch !== 123 && ch !== 125) {
|
6946 | return scanJSXText(['<', '>', '{', '}']);
|
6947 | }
|
6948 |
|
6949 | return scanPunctuator();
|
6950 | }
|
6951 |
|
6952 | function parseJSXIdentifier() {
|
6953 | var token, marker = markerCreate();
|
6954 |
|
6955 | if (lookahead.type !== Token.JSXIdentifier) {
|
6956 | throwUnexpected(lookahead);
|
6957 | }
|
6958 |
|
6959 | token = lex();
|
6960 | return markerApply(marker, delegate.createJSXIdentifier(token.value));
|
6961 | }
|
6962 |
|
6963 | function parseJSXNamespacedName() {
|
6964 | var namespace, name, marker = markerCreate();
|
6965 |
|
6966 | namespace = parseJSXIdentifier();
|
6967 | expect(':');
|
6968 | name = parseJSXIdentifier();
|
6969 |
|
6970 | return markerApply(marker, delegate.createJSXNamespacedName(namespace, name));
|
6971 | }
|
6972 |
|
6973 | function parseJSXMemberExpression() {
|
6974 | var marker = markerCreate(),
|
6975 | expr = parseJSXIdentifier();
|
6976 |
|
6977 | while (match('.')) {
|
6978 | lex();
|
6979 | expr = markerApply(marker, delegate.createJSXMemberExpression(expr, parseJSXIdentifier()));
|
6980 | }
|
6981 |
|
6982 | return expr;
|
6983 | }
|
6984 |
|
6985 | function parseJSXElementName() {
|
6986 | if (lookahead2().value === ':') {
|
6987 | return parseJSXNamespacedName();
|
6988 | }
|
6989 | if (lookahead2().value === '.') {
|
6990 | return parseJSXMemberExpression();
|
6991 | }
|
6992 |
|
6993 | return parseJSXIdentifier();
|
6994 | }
|
6995 |
|
6996 | function parseJSXAttributeName() {
|
6997 | if (lookahead2().value === ':') {
|
6998 | return parseJSXNamespacedName();
|
6999 | }
|
7000 |
|
7001 | return parseJSXIdentifier();
|
7002 | }
|
7003 |
|
7004 | function parseJSXAttributeValue() {
|
7005 | var value, marker;
|
7006 | if (match('{')) {
|
7007 | value = parseJSXExpressionContainer();
|
7008 | if (value.expression.type === Syntax.JSXEmptyExpression) {
|
7009 | throwError(
|
7010 | value,
|
7011 | 'JSX attributes must only be assigned a non-empty ' +
|
7012 | 'expression'
|
7013 | );
|
7014 | }
|
7015 | } else if (match('<')) {
|
7016 | value = parseJSXElement();
|
7017 | } else if (lookahead.type === Token.JSXText) {
|
7018 | marker = markerCreate();
|
7019 | value = markerApply(marker, delegate.createLiteral(lex()));
|
7020 | } else {
|
7021 | throwError({}, Messages.InvalidJSXAttributeValue);
|
7022 | }
|
7023 | return value;
|
7024 | }
|
7025 |
|
7026 | function parseJSXEmptyExpression() {
|
7027 | var ch, marker = markerCreatePreserveWhitespace();
|
7028 | while (index < length) {
|
7029 | ch = source.charCodeAt(index);
|
7030 | if (ch === 125) {
|
7031 | break;
|
7032 | } else if (isLineTerminator(ch)) {
|
7033 | if (ch === 13 && source.charCodeAt(index + 1) === 10) {
|
7034 | ++index;
|
7035 | }
|
7036 | ++lineNumber;
|
7037 | lineStart = index;
|
7038 | }
|
7039 | ++index;
|
7040 | }
|
7041 | return markerApply(marker, delegate.createJSXEmptyExpression());
|
7042 | }
|
7043 |
|
7044 | function parseJSXExpressionContainer() {
|
7045 | var expression, origInJSXChild, origInJSXTag, marker = markerCreate();
|
7046 |
|
7047 | origInJSXChild = state.inJSXChild;
|
7048 | origInJSXTag = state.inJSXTag;
|
7049 | state.inJSXChild = false;
|
7050 | state.inJSXTag = false;
|
7051 |
|
7052 | expect('{');
|
7053 |
|
7054 | if (match('}')) {
|
7055 | expression = parseJSXEmptyExpression();
|
7056 | } else {
|
7057 | expression = parseExpression();
|
7058 | }
|
7059 |
|
7060 | state.inJSXChild = origInJSXChild;
|
7061 | state.inJSXTag = origInJSXTag;
|
7062 |
|
7063 | expect('}');
|
7064 |
|
7065 | return markerApply(marker, delegate.createJSXExpressionContainer(expression));
|
7066 | }
|
7067 |
|
7068 | function parseJSXSpreadAttribute() {
|
7069 | var expression, origInJSXChild, origInJSXTag, marker = markerCreate();
|
7070 |
|
7071 | origInJSXChild = state.inJSXChild;
|
7072 | origInJSXTag = state.inJSXTag;
|
7073 | state.inJSXChild = false;
|
7074 | state.inJSXTag = false;
|
7075 |
|
7076 | expect('{');
|
7077 | expect('...');
|
7078 |
|
7079 | expression = parseAssignmentExpression();
|
7080 |
|
7081 | state.inJSXChild = origInJSXChild;
|
7082 | state.inJSXTag = origInJSXTag;
|
7083 |
|
7084 | expect('}');
|
7085 |
|
7086 | return markerApply(marker, delegate.createJSXSpreadAttribute(expression));
|
7087 | }
|
7088 |
|
7089 | function parseJSXAttribute() {
|
7090 | var name, marker;
|
7091 |
|
7092 | if (match('{')) {
|
7093 | return parseJSXSpreadAttribute();
|
7094 | }
|
7095 |
|
7096 | marker = markerCreate();
|
7097 |
|
7098 | name = parseJSXAttributeName();
|
7099 |
|
7100 | // HTML empty attribute
|
7101 | if (match('=')) {
|
7102 | lex();
|
7103 | return markerApply(marker, delegate.createJSXAttribute(name, parseJSXAttributeValue()));
|
7104 | }
|
7105 |
|
7106 | return markerApply(marker, delegate.createJSXAttribute(name));
|
7107 | }
|
7108 |
|
7109 | function parseJSXChild() {
|
7110 | var token, marker;
|
7111 | if (match('{')) {
|
7112 | token = parseJSXExpressionContainer();
|
7113 | } else if (lookahead.type === Token.JSXText) {
|
7114 | marker = markerCreatePreserveWhitespace();
|
7115 | token = markerApply(marker, delegate.createLiteral(lex()));
|
7116 | } else if (match('<')) {
|
7117 | token = parseJSXElement();
|
7118 | } else {
|
7119 | throwUnexpected(lookahead);
|
7120 | }
|
7121 | return token;
|
7122 | }
|
7123 |
|
7124 | function parseJSXClosingElement() {
|
7125 | var name, origInJSXChild, origInJSXTag, marker = markerCreate();
|
7126 | origInJSXChild = state.inJSXChild;
|
7127 | origInJSXTag = state.inJSXTag;
|
7128 | state.inJSXChild = false;
|
7129 | state.inJSXTag = true;
|
7130 | expect('<');
|
7131 | expect('/');
|
7132 | name = parseJSXElementName();
|
7133 | // Because advance() (called by lex() called by expect()) expects there
|
7134 | // to be a valid token after >, it needs to know whether to look for a
|
7135 | // standard JS token or an JSX text node
|
7136 | state.inJSXChild = origInJSXChild;
|
7137 | state.inJSXTag = origInJSXTag;
|
7138 | expect('>');
|
7139 | return markerApply(marker, delegate.createJSXClosingElement(name));
|
7140 | }
|
7141 |
|
7142 | function parseJSXOpeningElement() {
|
7143 | var name, attributes = [], selfClosing = false, origInJSXChild, origInJSXTag, marker = markerCreate();
|
7144 |
|
7145 | origInJSXChild = state.inJSXChild;
|
7146 | origInJSXTag = state.inJSXTag;
|
7147 | state.inJSXChild = false;
|
7148 | state.inJSXTag = true;
|
7149 |
|
7150 | expect('<');
|
7151 |
|
7152 | name = parseJSXElementName();
|
7153 |
|
7154 | while (index < length &&
|
7155 | lookahead.value !== '/' &&
|
7156 | lookahead.value !== '>') {
|
7157 | attributes.push(parseJSXAttribute());
|
7158 | }
|
7159 |
|
7160 | state.inJSXTag = origInJSXTag;
|
7161 |
|
7162 | if (lookahead.value === '/') {
|
7163 | expect('/');
|
7164 | // Because advance() (called by lex() called by expect()) expects
|
7165 | // there to be a valid token after >, it needs to know whether to
|
7166 | // look for a standard JS token or an JSX text node
|
7167 | state.inJSXChild = origInJSXChild;
|
7168 | expect('>');
|
7169 | selfClosing = true;
|
7170 | } else {
|
7171 | state.inJSXChild = true;
|
7172 | expect('>');
|
7173 | }
|
7174 | return markerApply(marker, delegate.createJSXOpeningElement(name, attributes, selfClosing));
|
7175 | }
|
7176 |
|
7177 | function parseJSXElement() {
|
7178 | var openingElement, closingElement = null, children = [], origInJSXChild, origInJSXTag, marker = markerCreate();
|
7179 |
|
7180 | origInJSXChild = state.inJSXChild;
|
7181 | origInJSXTag = state.inJSXTag;
|
7182 | openingElement = parseJSXOpeningElement();
|
7183 |
|
7184 | if (!openingElement.selfClosing) {
|
7185 | while (index < length) {
|
7186 | state.inJSXChild = false; // Call lookahead2() with inJSXChild = false because </ should not be considered in the child
|
7187 | if (lookahead.value === '<' && lookahead2().value === '/') {
|
7188 | break;
|
7189 | }
|
7190 | state.inJSXChild = true;
|
7191 | children.push(parseJSXChild());
|
7192 | }
|
7193 | state.inJSXChild = origInJSXChild;
|
7194 | state.inJSXTag = origInJSXTag;
|
7195 | closingElement = parseJSXClosingElement();
|
7196 | if (getQualifiedJSXName(closingElement.name) !== getQualifiedJSXName(openingElement.name)) {
|
7197 | throwError({}, Messages.ExpectedJSXClosingTag, getQualifiedJSXName(openingElement.name));
|
7198 | }
|
7199 | }
|
7200 |
|
7201 | // When (erroneously) writing two adjacent tags like
|
7202 | //
|
7203 | // var x = <div>one</div><div>two</div>;
|
7204 | //
|
7205 | // the default error message is a bit incomprehensible. Since it's
|
7206 | // rarely (never?) useful to write a less-than sign after an JSX
|
7207 | // element, we disallow it here in the parser in order to provide a
|
7208 | // better error message. (In the rare case that the less-than operator
|
7209 | // was intended, the left tag can be wrapped in parentheses.)
|
7210 | if (!origInJSXChild && match('<')) {
|
7211 | throwError(lookahead, Messages.AdjacentJSXElements);
|
7212 | }
|
7213 |
|
7214 | return markerApply(marker, delegate.createJSXElement(openingElement, closingElement, children));
|
7215 | }
|
7216 |
|
7217 | function parseTypeAlias() {
|
7218 | var id, marker = markerCreate(), typeParameters = null, right;
|
7219 | expectContextualKeyword('type');
|
7220 | id = parseVariableIdentifier();
|
7221 | if (match('<')) {
|
7222 | typeParameters = parseTypeParameterDeclaration();
|
7223 | }
|
7224 | expect('=');
|
7225 | right = parseType();
|
7226 | consumeSemicolon();
|
7227 | return markerApply(marker, delegate.createTypeAlias(id, typeParameters, right));
|
7228 | }
|
7229 |
|
7230 | function parseInterfaceExtends() {
|
7231 | var marker = markerCreate(), id, typeParameters = null;
|
7232 |
|
7233 | id = parseVariableIdentifier();
|
7234 | if (match('<')) {
|
7235 | typeParameters = parseTypeParameterInstantiation();
|
7236 | }
|
7237 |
|
7238 | return markerApply(marker, delegate.createInterfaceExtends(
|
7239 | id,
|
7240 | typeParameters
|
7241 | ));
|
7242 | }
|
7243 |
|
7244 | function parseInterfaceish(marker, allowStatic) {
|
7245 | var body, bodyMarker, extended = [], id,
|
7246 | typeParameters = null;
|
7247 |
|
7248 | id = parseVariableIdentifier();
|
7249 | if (match('<')) {
|
7250 | typeParameters = parseTypeParameterDeclaration();
|
7251 | }
|
7252 |
|
7253 | if (matchKeyword('extends')) {
|
7254 | expectKeyword('extends');
|
7255 |
|
7256 | while (index < length) {
|
7257 | extended.push(parseInterfaceExtends());
|
7258 | if (!match(',')) {
|
7259 | break;
|
7260 | }
|
7261 | expect(',');
|
7262 | }
|
7263 | }
|
7264 |
|
7265 | bodyMarker = markerCreate();
|
7266 | body = markerApply(bodyMarker, parseObjectType(allowStatic));
|
7267 |
|
7268 | return markerApply(marker, delegate.createInterface(
|
7269 | id,
|
7270 | typeParameters,
|
7271 | body,
|
7272 | extended
|
7273 | ));
|
7274 | }
|
7275 |
|
7276 | function parseInterface() {
|
7277 | var marker = markerCreate();
|
7278 |
|
7279 | if (strict) {
|
7280 | expectKeyword('interface');
|
7281 | } else {
|
7282 | expectContextualKeyword('interface');
|
7283 | }
|
7284 |
|
7285 | return parseInterfaceish(marker, /* allowStatic */false);
|
7286 | }
|
7287 |
|
7288 | function parseDeclareClass() {
|
7289 | var marker = markerCreate(), ret;
|
7290 | expectContextualKeyword('declare');
|
7291 | expectKeyword('class');
|
7292 |
|
7293 | ret = parseInterfaceish(marker, /* allowStatic */true);
|
7294 | ret.type = Syntax.DeclareClass;
|
7295 | return ret;
|
7296 | }
|
7297 |
|
7298 | function parseDeclareFunction() {
|
7299 | var id, idMarker,
|
7300 | marker = markerCreate(), params, returnType, rest, tmp,
|
7301 | typeParameters = null, value, valueMarker;
|
7302 |
|
7303 | expectContextualKeyword('declare');
|
7304 | expectKeyword('function');
|
7305 | idMarker = markerCreate();
|
7306 | id = parseVariableIdentifier();
|
7307 |
|
7308 | valueMarker = markerCreate();
|
7309 | if (match('<')) {
|
7310 | typeParameters = parseTypeParameterDeclaration();
|
7311 | }
|
7312 | expect('(');
|
7313 | tmp = parseFunctionTypeParams();
|
7314 | params = tmp.params;
|
7315 | rest = tmp.rest;
|
7316 | expect(')');
|
7317 |
|
7318 | expect(':');
|
7319 | returnType = parseType();
|
7320 |
|
7321 | value = markerApply(valueMarker, delegate.createFunctionTypeAnnotation(
|
7322 | params,
|
7323 | returnType,
|
7324 | rest,
|
7325 | typeParameters
|
7326 | ));
|
7327 |
|
7328 | id.typeAnnotation = markerApply(valueMarker, delegate.createTypeAnnotation(
|
7329 | value
|
7330 | ));
|
7331 | markerApply(idMarker, id);
|
7332 |
|
7333 | consumeSemicolon();
|
7334 |
|
7335 | return markerApply(marker, delegate.createDeclareFunction(
|
7336 | id
|
7337 | ));
|
7338 | }
|
7339 |
|
7340 | function parseDeclareVariable() {
|
7341 | var id, marker = markerCreate();
|
7342 | expectContextualKeyword('declare');
|
7343 | expectKeyword('var');
|
7344 | id = parseTypeAnnotatableIdentifier();
|
7345 |
|
7346 | consumeSemicolon();
|
7347 |
|
7348 | return markerApply(marker, delegate.createDeclareVariable(
|
7349 | id
|
7350 | ));
|
7351 | }
|
7352 |
|
7353 | function parseDeclareModule() {
|
7354 | var body = [], bodyMarker, id, idMarker, marker = markerCreate(), token;
|
7355 | expectContextualKeyword('declare');
|
7356 | expectContextualKeyword('module');
|
7357 |
|
7358 | if (lookahead.type === Token.StringLiteral) {
|
7359 | if (strict && lookahead.octal) {
|
7360 | throwErrorTolerant(lookahead, Messages.StrictOctalLiteral);
|
7361 | }
|
7362 | idMarker = markerCreate();
|
7363 | id = markerApply(idMarker, delegate.createLiteral(lex()));
|
7364 | } else {
|
7365 | id = parseVariableIdentifier();
|
7366 | }
|
7367 |
|
7368 | bodyMarker = markerCreate();
|
7369 | expect('{');
|
7370 | while (index < length && !match('}')) {
|
7371 | token = lookahead2();
|
7372 | switch (token.value) {
|
7373 | case 'class':
|
7374 | body.push(parseDeclareClass());
|
7375 | break;
|
7376 | case 'function':
|
7377 | body.push(parseDeclareFunction());
|
7378 | break;
|
7379 | case 'var':
|
7380 | body.push(parseDeclareVariable());
|
7381 | break;
|
7382 | default:
|
7383 | throwUnexpected(lookahead);
|
7384 | }
|
7385 | }
|
7386 | expect('}');
|
7387 |
|
7388 | return markerApply(marker, delegate.createDeclareModule(
|
7389 | id,
|
7390 | markerApply(bodyMarker, delegate.createBlockStatement(body))
|
7391 | ));
|
7392 | }
|
7393 |
|
7394 | function collectToken() {
|
7395 | var loc, token, range, value, entry;
|
7396 |
|
7397 | /* istanbul ignore else */
|
7398 | if (!state.inJSXChild) {
|
7399 | skipComment();
|
7400 | }
|
7401 |
|
7402 | loc = {
|
7403 | start: {
|
7404 | line: lineNumber,
|
7405 | column: index - lineStart
|
7406 | }
|
7407 | };
|
7408 |
|
7409 | token = extra.advance();
|
7410 | loc.end = {
|
7411 | line: lineNumber,
|
7412 | column: index - lineStart
|
7413 | };
|
7414 |
|
7415 | if (token.type !== Token.EOF) {
|
7416 | range = [token.range[0], token.range[1]];
|
7417 | value = source.slice(token.range[0], token.range[1]);
|
7418 | entry = {
|
7419 | type: TokenName[token.type],
|
7420 | value: value,
|
7421 | range: range,
|
7422 | loc: loc
|
7423 | };
|
7424 | if (token.regex) {
|
7425 | entry.regex = {
|
7426 | pattern: token.regex.pattern,
|
7427 | flags: token.regex.flags
|
7428 | };
|
7429 | }
|
7430 | extra.tokens.push(entry);
|
7431 | }
|
7432 |
|
7433 | return token;
|
7434 | }
|
7435 |
|
7436 | function collectRegex() {
|
7437 | var pos, loc, regex, token;
|
7438 |
|
7439 | skipComment();
|
7440 |
|
7441 | pos = index;
|
7442 | loc = {
|
7443 | start: {
|
7444 | line: lineNumber,
|
7445 | column: index - lineStart
|
7446 | }
|
7447 | };
|
7448 |
|
7449 | regex = extra.scanRegExp();
|
7450 | loc.end = {
|
7451 | line: lineNumber,
|
7452 | column: index - lineStart
|
7453 | };
|
7454 |
|
7455 | if (!extra.tokenize) {
|
7456 | /* istanbul ignore next */
|
7457 | // Pop the previous token, which is likely '/' or '/='
|
7458 | if (extra.tokens.length > 0) {
|
7459 | token = extra.tokens[extra.tokens.length - 1];
|
7460 | if (token.range[0] === pos && token.type === 'Punctuator') {
|
7461 | if (token.value === '/' || token.value === '/=') {
|
7462 | extra.tokens.pop();
|
7463 | }
|
7464 | }
|
7465 | }
|
7466 |
|
7467 | extra.tokens.push({
|
7468 | type: 'RegularExpression',
|
7469 | value: regex.literal,
|
7470 | regex: regex.regex,
|
7471 | range: [pos, index],
|
7472 | loc: loc
|
7473 | });
|
7474 | }
|
7475 |
|
7476 | return regex;
|
7477 | }
|
7478 |
|
7479 | function filterTokenLocation() {
|
7480 | var i, entry, token, tokens = [];
|
7481 |
|
7482 | for (i = 0; i < extra.tokens.length; ++i) {
|
7483 | entry = extra.tokens[i];
|
7484 | token = {
|
7485 | type: entry.type,
|
7486 | value: entry.value
|
7487 | };
|
7488 | if (entry.regex) {
|
7489 | token.regex = {
|
7490 | pattern: entry.regex.pattern,
|
7491 | flags: entry.regex.flags
|
7492 | };
|
7493 | }
|
7494 | if (extra.range) {
|
7495 | token.range = entry.range;
|
7496 | }
|
7497 | if (extra.loc) {
|
7498 | token.loc = entry.loc;
|
7499 | }
|
7500 | tokens.push(token);
|
7501 | }
|
7502 |
|
7503 | extra.tokens = tokens;
|
7504 | }
|
7505 |
|
7506 | function patch() {
|
7507 | if (typeof extra.tokens !== 'undefined') {
|
7508 | extra.advance = advance;
|
7509 | extra.scanRegExp = scanRegExp;
|
7510 |
|
7511 | advance = collectToken;
|
7512 | scanRegExp = collectRegex;
|
7513 | }
|
7514 | }
|
7515 |
|
7516 | function unpatch() {
|
7517 | if (typeof extra.scanRegExp === 'function') {
|
7518 | advance = extra.advance;
|
7519 | scanRegExp = extra.scanRegExp;
|
7520 | }
|
7521 | }
|
7522 |
|
7523 | // This is used to modify the delegate.
|
7524 |
|
7525 | function extend(object, properties) {
|
7526 | var entry, result = {};
|
7527 |
|
7528 | for (entry in object) {
|
7529 | /* istanbul ignore else */
|
7530 | if (object.hasOwnProperty(entry)) {
|
7531 | result[entry] = object[entry];
|
7532 | }
|
7533 | }
|
7534 |
|
7535 | for (entry in properties) {
|
7536 | /* istanbul ignore else */
|
7537 | if (properties.hasOwnProperty(entry)) {
|
7538 | result[entry] = properties[entry];
|
7539 | }
|
7540 | }
|
7541 |
|
7542 | return result;
|
7543 | }
|
7544 |
|
7545 | function tokenize(code, options) {
|
7546 | var toString,
|
7547 | token,
|
7548 | tokens;
|
7549 |
|
7550 | toString = String;
|
7551 | if (typeof code !== 'string' && !(code instanceof String)) {
|
7552 | code = toString(code);
|
7553 | }
|
7554 |
|
7555 | delegate = SyntaxTreeDelegate;
|
7556 | source = code;
|
7557 | index = 0;
|
7558 | lineNumber = (source.length > 0) ? 1 : 0;
|
7559 | lineStart = 0;
|
7560 | length = source.length;
|
7561 | lookahead = null;
|
7562 | state = {
|
7563 | allowKeyword: true,
|
7564 | allowIn: true,
|
7565 | labelSet: new StringMap(),
|
7566 | inFunctionBody: false,
|
7567 | inIteration: false,
|
7568 | inSwitch: false,
|
7569 | lastCommentStart: -1,
|
7570 | curlyStack: [],
|
7571 | curlyLastIndex: 0
|
7572 | };
|
7573 |
|
7574 | extra = {};
|
7575 |
|
7576 | // Options matching.
|
7577 | options = options || {};
|
7578 |
|
7579 | // Of course we collect tokens here.
|
7580 | options.tokens = true;
|
7581 | extra.tokens = [];
|
7582 | extra.tokenize = true;
|
7583 | // The following two fields are necessary to compute the Regex tokens.
|
7584 | extra.openParenToken = -1;
|
7585 | extra.openCurlyToken = -1;
|
7586 |
|
7587 | extra.range = (typeof options.range === 'boolean') && options.range;
|
7588 | extra.loc = (typeof options.loc === 'boolean') && options.loc;
|
7589 |
|
7590 | if (typeof options.comment === 'boolean' && options.comment) {
|
7591 | extra.comments = [];
|
7592 | }
|
7593 | if (typeof options.tolerant === 'boolean' && options.tolerant) {
|
7594 | extra.errors = [];
|
7595 | }
|
7596 |
|
7597 | patch();
|
7598 |
|
7599 | try {
|
7600 | peek();
|
7601 | if (lookahead.type === Token.EOF) {
|
7602 | return extra.tokens;
|
7603 | }
|
7604 |
|
7605 | token = lex();
|
7606 | while (lookahead.type !== Token.EOF) {
|
7607 | try {
|
7608 | token = lex();
|
7609 | } catch (lexError) {
|
7610 | token = lookahead;
|
7611 | if (extra.errors) {
|
7612 | extra.errors.push(lexError);
|
7613 | // We have to break on the first error
|
7614 | // to avoid infinite loops.
|
7615 | break;
|
7616 | } else {
|
7617 | throw lexError;
|
7618 | }
|
7619 | }
|
7620 | }
|
7621 |
|
7622 | filterTokenLocation();
|
7623 | tokens = extra.tokens;
|
7624 | if (typeof extra.comments !== 'undefined') {
|
7625 | tokens.comments = extra.comments;
|
7626 | }
|
7627 | if (typeof extra.errors !== 'undefined') {
|
7628 | tokens.errors = extra.errors;
|
7629 | }
|
7630 | } catch (e) {
|
7631 | throw e;
|
7632 | } finally {
|
7633 | unpatch();
|
7634 | extra = {};
|
7635 | }
|
7636 | return tokens;
|
7637 | }
|
7638 |
|
7639 | function parse(code, options) {
|
7640 | var program, toString;
|
7641 |
|
7642 | toString = String;
|
7643 | if (typeof code !== 'string' && !(code instanceof String)) {
|
7644 | code = toString(code);
|
7645 | }
|
7646 |
|
7647 | delegate = SyntaxTreeDelegate;
|
7648 | source = code;
|
7649 | index = 0;
|
7650 | lineNumber = (source.length > 0) ? 1 : 0;
|
7651 | lineStart = 0;
|
7652 | length = source.length;
|
7653 | lookahead = null;
|
7654 | state = {
|
7655 | allowKeyword: false,
|
7656 | allowIn: true,
|
7657 | labelSet: new StringMap(),
|
7658 | parenthesizedCount: 0,
|
7659 | inFunctionBody: false,
|
7660 | inIteration: false,
|
7661 | inSwitch: false,
|
7662 | inJSXChild: false,
|
7663 | inJSXTag: false,
|
7664 | inType: false,
|
7665 | lastCommentStart: -1,
|
7666 | yieldAllowed: false,
|
7667 | awaitAllowed: false,
|
7668 | curlyPosition: 0,
|
7669 | curlyStack: [],
|
7670 | curlyLastIndex: 0
|
7671 | };
|
7672 |
|
7673 | extra = {};
|
7674 | if (typeof options !== 'undefined') {
|
7675 | extra.range = (typeof options.range === 'boolean') && options.range;
|
7676 | extra.loc = (typeof options.loc === 'boolean') && options.loc;
|
7677 | extra.attachComment = (typeof options.attachComment === 'boolean') && options.attachComment;
|
7678 |
|
7679 | if (extra.loc && options.source !== null && options.source !== undefined) {
|
7680 | delegate = extend(delegate, {
|
7681 | 'postProcess': function (node) {
|
7682 | node.loc.source = toString(options.source);
|
7683 | return node;
|
7684 | }
|
7685 | });
|
7686 | }
|
7687 |
|
7688 | extra.sourceType = options.sourceType;
|
7689 | if (typeof options.tokens === 'boolean' && options.tokens) {
|
7690 | extra.tokens = [];
|
7691 | }
|
7692 | if (typeof options.comment === 'boolean' && options.comment) {
|
7693 | extra.comments = [];
|
7694 | }
|
7695 | if (typeof options.tolerant === 'boolean' && options.tolerant) {
|
7696 | extra.errors = [];
|
7697 | }
|
7698 | if (extra.attachComment) {
|
7699 | extra.range = true;
|
7700 | extra.comments = [];
|
7701 | extra.bottomRightStack = [];
|
7702 | extra.trailingComments = [];
|
7703 | extra.leadingComments = [];
|
7704 | }
|
7705 | }
|
7706 |
|
7707 | patch();
|
7708 | try {
|
7709 | program = parseProgram();
|
7710 | if (typeof extra.comments !== 'undefined') {
|
7711 | program.comments = extra.comments;
|
7712 | }
|
7713 | if (typeof extra.tokens !== 'undefined') {
|
7714 | filterTokenLocation();
|
7715 | program.tokens = extra.tokens;
|
7716 | }
|
7717 | if (typeof extra.errors !== 'undefined') {
|
7718 | program.errors = extra.errors;
|
7719 | }
|
7720 | } catch (e) {
|
7721 | throw e;
|
7722 | } finally {
|
7723 | unpatch();
|
7724 | extra = {};
|
7725 | }
|
7726 |
|
7727 | return program;
|
7728 | }
|
7729 |
|
7730 | // Sync with *.json manifests.
|
7731 | exports.version = '14001.1.0-dev-harmony-fb';
|
7732 |
|
7733 | exports.tokenize = tokenize;
|
7734 |
|
7735 | exports.parse = parse;
|
7736 |
|
7737 | // Deep copy.
|
7738 | /* istanbul ignore next */
|
7739 | exports.Syntax = (function () {
|
7740 | var name, types = {};
|
7741 |
|
7742 | if (typeof Object.create === 'function') {
|
7743 | types = Object.create(null);
|
7744 | }
|
7745 |
|
7746 | for (name in Syntax) {
|
7747 | if (Syntax.hasOwnProperty(name)) {
|
7748 | types[name] = Syntax[name];
|
7749 | }
|
7750 | }
|
7751 |
|
7752 | if (typeof Object.freeze === 'function') {
|
7753 | Object.freeze(types);
|
7754 | }
|
7755 |
|
7756 | return types;
|
7757 | }());
|
7758 |
|
7759 | }));
|
7760 | /* vim: set sw=4 ts=4 et tw=80 : */
|
7761 |
|
\ | No newline at end of file |