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34 |
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35 |
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36 |
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37 | (function () {
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38 | 'use strict';
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39 |
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40 | var Syntax,
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41 | Precedence,
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42 | BinaryPrecedence,
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43 | SourceNode,
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44 | estraverse,
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45 | esutils,
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46 | base,
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47 | indent,
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48 | json,
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49 | renumber,
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50 | hexadecimal,
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51 | quotes,
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52 | escapeless,
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53 | newline,
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54 | space,
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55 | parentheses,
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56 | semicolons,
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57 | safeConcatenation,
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58 | directive,
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59 | extra,
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60 | parse,
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61 | sourceMap,
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62 | sourceCode,
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63 | preserveBlankLines,
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64 | FORMAT_MINIFY,
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65 | FORMAT_DEFAULTS;
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66 |
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67 | estraverse = require('estraverse');
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68 | esutils = require('esutils');
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69 |
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70 | Syntax = estraverse.Syntax;
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71 |
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72 |
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73 | function isExpression(node) {
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74 | return CodeGenerator.Expression.hasOwnProperty(node.type);
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75 | }
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76 |
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77 |
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78 | function isStatement(node) {
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79 | return CodeGenerator.Statement.hasOwnProperty(node.type);
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80 | }
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81 |
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82 | Precedence = {
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83 | Sequence: 0,
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84 | Yield: 1,
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85 | Assignment: 1,
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86 | Conditional: 2,
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87 | ArrowFunction: 2,
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88 | LogicalOR: 3,
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89 | LogicalAND: 4,
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90 | BitwiseOR: 5,
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91 | BitwiseXOR: 6,
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92 | BitwiseAND: 7,
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93 | Equality: 8,
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94 | Relational: 9,
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95 | BitwiseSHIFT: 10,
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96 | Additive: 11,
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97 | Multiplicative: 12,
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98 | Exponentiation: 13,
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99 | Await: 14,
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100 | Unary: 14,
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101 | Postfix: 15,
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102 | OptionalChaining: 16,
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103 | Call: 17,
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104 | New: 18,
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105 | TaggedTemplate: 19,
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106 | Member: 20,
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107 | Primary: 21
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108 | };
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109 |
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110 | BinaryPrecedence = {
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111 | '||': Precedence.LogicalOR,
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112 | '&&': Precedence.LogicalAND,
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113 | '|': Precedence.BitwiseOR,
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114 | '^': Precedence.BitwiseXOR,
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115 | '&': Precedence.BitwiseAND,
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116 | '==': Precedence.Equality,
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117 | '!=': Precedence.Equality,
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118 | '===': Precedence.Equality,
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119 | '!==': Precedence.Equality,
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120 | 'is': Precedence.Equality,
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121 | 'isnt': Precedence.Equality,
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122 | '<': Precedence.Relational,
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123 | '>': Precedence.Relational,
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124 | '<=': Precedence.Relational,
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125 | '>=': Precedence.Relational,
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126 | 'in': Precedence.Relational,
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127 | 'instanceof': Precedence.Relational,
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128 | '<<': Precedence.BitwiseSHIFT,
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129 | '>>': Precedence.BitwiseSHIFT,
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130 | '>>>': Precedence.BitwiseSHIFT,
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131 | '+': Precedence.Additive,
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132 | '-': Precedence.Additive,
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133 | '*': Precedence.Multiplicative,
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134 | '%': Precedence.Multiplicative,
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135 | '/': Precedence.Multiplicative,
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136 | '**': Precedence.Exponentiation
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137 | };
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138 |
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139 |
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140 | var F_ALLOW_IN = 1,
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141 | F_ALLOW_CALL = 1 << 1,
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142 | F_ALLOW_UNPARATH_NEW = 1 << 2,
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143 | F_FUNC_BODY = 1 << 3,
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144 | F_DIRECTIVE_CTX = 1 << 4,
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145 | F_SEMICOLON_OPT = 1 << 5;
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146 |
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147 |
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148 |
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149 |
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150 |
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151 |
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152 | var E_FTT = F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW,
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153 | E_TTF = F_ALLOW_IN | F_ALLOW_CALL,
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154 | E_TTT = F_ALLOW_IN | F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW,
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155 | E_TFF = F_ALLOW_IN,
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156 | E_FFT = F_ALLOW_UNPARATH_NEW,
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157 | E_TFT = F_ALLOW_IN | F_ALLOW_UNPARATH_NEW;
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158 |
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159 |
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160 |
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161 |
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162 |
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163 |
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164 |
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165 | var S_TFFF = F_ALLOW_IN,
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166 | S_TFFT = F_ALLOW_IN | F_SEMICOLON_OPT,
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167 | S_FFFF = 0x00,
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168 | S_TFTF = F_ALLOW_IN | F_DIRECTIVE_CTX,
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169 | S_TTFF = F_ALLOW_IN | F_FUNC_BODY;
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170 |
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171 | function getDefaultOptions() {
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172 |
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173 | return {
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174 | indent: null,
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175 | base: null,
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176 | parse: null,
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177 | comment: false,
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178 | format: {
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179 | indent: {
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180 | style: ' ',
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181 | base: 0,
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182 | adjustMultilineComment: false
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183 | },
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184 | newline: '\n',
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185 | space: ' ',
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186 | json: false,
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187 | renumber: false,
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188 | hexadecimal: false,
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189 | quotes: 'single',
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190 | escapeless: false,
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191 | compact: false,
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192 | parentheses: true,
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193 | semicolons: true,
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194 | safeConcatenation: false,
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195 | preserveBlankLines: false
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196 | },
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197 | moz: {
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198 | comprehensionExpressionStartsWithAssignment: false,
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199 | starlessGenerator: false
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200 | },
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201 | sourceMap: null,
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202 | sourceMapRoot: null,
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203 | sourceMapWithCode: false,
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204 | directive: false,
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205 | raw: true,
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206 | verbatim: null,
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207 | sourceCode: null
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208 | };
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209 | }
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210 |
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211 | function stringRepeat(str, num) {
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212 | var result = '';
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213 |
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214 | for (num |= 0; num > 0; num >>>= 1, str += str) {
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215 | if (num & 1) {
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216 | result += str;
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217 | }
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218 | }
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219 |
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220 | return result;
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221 | }
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222 |
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223 | function hasLineTerminator(str) {
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224 | return (/[\r\n]/g).test(str);
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225 | }
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226 |
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227 | function endsWithLineTerminator(str) {
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228 | var len = str.length;
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229 | return len && esutils.code.isLineTerminator(str.charCodeAt(len - 1));
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230 | }
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231 |
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232 | function merge(target, override) {
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233 | var key;
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234 | for (key in override) {
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235 | if (override.hasOwnProperty(key)) {
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236 | target[key] = override[key];
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237 | }
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238 | }
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239 | return target;
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240 | }
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241 |
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242 | function updateDeeply(target, override) {
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243 | var key, val;
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244 |
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245 | function isHashObject(target) {
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246 | return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp);
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247 | }
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248 |
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249 | for (key in override) {
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250 | if (override.hasOwnProperty(key)) {
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251 | val = override[key];
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252 | if (isHashObject(val)) {
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253 | if (isHashObject(target[key])) {
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254 | updateDeeply(target[key], val);
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255 | } else {
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256 | target[key] = updateDeeply({}, val);
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257 | }
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258 | } else {
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259 | target[key] = val;
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260 | }
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261 | }
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262 | }
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263 | return target;
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264 | }
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265 |
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266 | function generateNumber(value) {
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267 | var result, point, temp, exponent, pos;
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268 |
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269 | if (value !== value) {
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270 | throw new Error('Numeric literal whose value is NaN');
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271 | }
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272 | if (value < 0 || (value === 0 && 1 / value < 0)) {
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273 | throw new Error('Numeric literal whose value is negative');
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274 | }
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275 |
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276 | if (value === 1 / 0) {
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277 | return json ? 'null' : renumber ? '1e400' : '1e+400';
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278 | }
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279 |
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280 | result = '' + value;
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281 | if (!renumber || result.length < 3) {
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282 | return result;
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283 | }
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284 |
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285 | point = result.indexOf('.');
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286 | if (!json && result.charCodeAt(0) === 0x30 && point === 1) {
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287 | point = 0;
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288 | result = result.slice(1);
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289 | }
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290 | temp = result;
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291 | result = result.replace('e+', 'e');
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292 | exponent = 0;
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293 | if ((pos = temp.indexOf('e')) > 0) {
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294 | exponent = +temp.slice(pos + 1);
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295 | temp = temp.slice(0, pos);
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296 | }
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297 | if (point >= 0) {
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298 | exponent -= temp.length - point - 1;
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299 | temp = +(temp.slice(0, point) + temp.slice(point + 1)) + '';
|
300 | }
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301 | pos = 0;
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302 | while (temp.charCodeAt(temp.length + pos - 1) === 0x30 ) {
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303 | --pos;
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304 | }
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305 | if (pos !== 0) {
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306 | exponent -= pos;
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307 | temp = temp.slice(0, pos);
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308 | }
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309 | if (exponent !== 0) {
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310 | temp += 'e' + exponent;
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311 | }
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312 | if ((temp.length < result.length ||
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313 | (hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length)) &&
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314 | +temp === value) {
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315 | result = temp;
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316 | }
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317 |
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318 | return result;
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319 | }
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320 |
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321 |
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322 |
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323 |
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324 | function escapeRegExpCharacter(ch, previousIsBackslash) {
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325 |
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326 | if ((ch & ~1) === 0x2028) {
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327 | return (previousIsBackslash ? 'u' : '\\u') + ((ch === 0x2028) ? '2028' : '2029');
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328 | } else if (ch === 10 || ch === 13) {
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329 | return (previousIsBackslash ? '' : '\\') + ((ch === 10) ? 'n' : 'r');
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330 | }
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331 | return String.fromCharCode(ch);
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332 | }
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333 |
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334 | function generateRegExp(reg) {
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335 | var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash;
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336 |
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337 | result = reg.toString();
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338 |
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339 | if (reg.source) {
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340 |
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341 | match = result.match(/\/([^/]*)$/);
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342 | if (!match) {
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343 | return result;
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344 | }
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345 |
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346 | flags = match[1];
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347 | result = '';
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348 |
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349 | characterInBrack = false;
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350 | previousIsBackslash = false;
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351 | for (i = 0, iz = reg.source.length; i < iz; ++i) {
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352 | ch = reg.source.charCodeAt(i);
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353 |
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354 | if (!previousIsBackslash) {
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355 | if (characterInBrack) {
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356 | if (ch === 93) {
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357 | characterInBrack = false;
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358 | }
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359 | } else {
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360 | if (ch === 47) {
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361 | result += '\\';
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362 | } else if (ch === 91) {
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363 | characterInBrack = true;
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364 | }
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365 | }
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366 | result += escapeRegExpCharacter(ch, previousIsBackslash);
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367 | previousIsBackslash = ch === 92;
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368 | } else {
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369 |
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370 | result += escapeRegExpCharacter(ch, previousIsBackslash);
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371 |
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372 | previousIsBackslash = false;
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373 | }
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374 | }
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375 |
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376 | return '/' + result + '/' + flags;
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377 | }
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378 |
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379 | return result;
|
380 | }
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381 |
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382 | function escapeAllowedCharacter(code, next) {
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383 | var hex;
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384 |
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385 | if (code === 0x08 ) {
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386 | return '\\b';
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387 | }
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388 |
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389 | if (code === 0x0C ) {
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390 | return '\\f';
|
391 | }
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392 |
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393 | if (code === 0x09 ) {
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394 | return '\\t';
|
395 | }
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396 |
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397 | hex = code.toString(16).toUpperCase();
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398 | if (json || code > 0xFF) {
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399 | return '\\u' + '0000'.slice(hex.length) + hex;
|
400 | } else if (code === 0x0000 && !esutils.code.isDecimalDigit(next)) {
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401 | return '\\0';
|
402 | } else if (code === 0x000B ) {
|
403 | return '\\x0B';
|
404 | } else {
|
405 | return '\\x' + '00'.slice(hex.length) + hex;
|
406 | }
|
407 | }
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408 |
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409 | function escapeDisallowedCharacter(code) {
|
410 | if (code === 0x5C ) {
|
411 | return '\\\\';
|
412 | }
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413 |
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414 | if (code === 0x0A ) {
|
415 | return '\\n';
|
416 | }
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417 |
|
418 | if (code === 0x0D ) {
|
419 | return '\\r';
|
420 | }
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421 |
|
422 | if (code === 0x2028) {
|
423 | return '\\u2028';
|
424 | }
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425 |
|
426 | if (code === 0x2029) {
|
427 | return '\\u2029';
|
428 | }
|
429 |
|
430 | throw new Error('Incorrectly classified character');
|
431 | }
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432 |
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433 | function escapeDirective(str) {
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434 | var i, iz, code, quote;
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435 |
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436 | quote = quotes === 'double' ? '"' : '\'';
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437 | for (i = 0, iz = str.length; i < iz; ++i) {
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438 | code = str.charCodeAt(i);
|
439 | if (code === 0x27 ) {
|
440 | quote = '"';
|
441 | break;
|
442 | } else if (code === 0x22 ) {
|
443 | quote = '\'';
|
444 | break;
|
445 | } else if (code === 0x5C ) {
|
446 | ++i;
|
447 | }
|
448 | }
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449 |
|
450 | return quote + str + quote;
|
451 | }
|
452 |
|
453 | function escapeString(str) {
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454 | var result = '', i, len, code, singleQuotes = 0, doubleQuotes = 0, single, quote;
|
455 |
|
456 | for (i = 0, len = str.length; i < len; ++i) {
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457 | code = str.charCodeAt(i);
|
458 | if (code === 0x27 ) {
|
459 | ++singleQuotes;
|
460 | } else if (code === 0x22 ) {
|
461 | ++doubleQuotes;
|
462 | } else if (code === 0x2F && json) {
|
463 | result += '\\';
|
464 | } else if (esutils.code.isLineTerminator(code) || code === 0x5C ) {
|
465 | result += escapeDisallowedCharacter(code);
|
466 | continue;
|
467 | } else if (!esutils.code.isIdentifierPartES5(code) && (json && code < 0x20 || !json && !escapeless && (code < 0x20 || code > 0x7E ))) {
|
468 | result += escapeAllowedCharacter(code, str.charCodeAt(i + 1));
|
469 | continue;
|
470 | }
|
471 | result += String.fromCharCode(code);
|
472 | }
|
473 |
|
474 | single = !(quotes === 'double' || (quotes === 'auto' && doubleQuotes < singleQuotes));
|
475 | quote = single ? '\'' : '"';
|
476 |
|
477 | if (!(single ? singleQuotes : doubleQuotes)) {
|
478 | return quote + result + quote;
|
479 | }
|
480 |
|
481 | str = result;
|
482 | result = quote;
|
483 |
|
484 | for (i = 0, len = str.length; i < len; ++i) {
|
485 | code = str.charCodeAt(i);
|
486 | if ((code === 0x27 && single) || (code === 0x22 && !single)) {
|
487 | result += '\\';
|
488 | }
|
489 | result += String.fromCharCode(code);
|
490 | }
|
491 |
|
492 | return result + quote;
|
493 | }
|
494 |
|
495 | |
496 |
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497 |
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498 |
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499 | function flattenToString(arr) {
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500 | var i, iz, elem, result = '';
|
501 | for (i = 0, iz = arr.length; i < iz; ++i) {
|
502 | elem = arr[i];
|
503 | result += Array.isArray(elem) ? flattenToString(elem) : elem;
|
504 | }
|
505 | return result;
|
506 | }
|
507 |
|
508 | |
509 |
|
510 |
|
511 | function toSourceNodeWhenNeeded(generated, node) {
|
512 | if (!sourceMap) {
|
513 |
|
514 |
|
515 |
|
516 | if (Array.isArray(generated)) {
|
517 | return flattenToString(generated);
|
518 | } else {
|
519 | return generated;
|
520 | }
|
521 | }
|
522 | if (node == null) {
|
523 | if (generated instanceof SourceNode) {
|
524 | return generated;
|
525 | } else {
|
526 | node = {};
|
527 | }
|
528 | }
|
529 | if (node.loc == null) {
|
530 | return new SourceNode(null, null, sourceMap, generated, node.name || null);
|
531 | }
|
532 | return new SourceNode(node.loc.start.line, node.loc.start.column, (sourceMap === true ? node.loc.source || null : sourceMap), generated, node.name || null);
|
533 | }
|
534 |
|
535 | function noEmptySpace() {
|
536 | return (space) ? space : ' ';
|
537 | }
|
538 |
|
539 | function join(left, right) {
|
540 | var leftSource,
|
541 | rightSource,
|
542 | leftCharCode,
|
543 | rightCharCode;
|
544 |
|
545 | leftSource = toSourceNodeWhenNeeded(left).toString();
|
546 | if (leftSource.length === 0) {
|
547 | return [right];
|
548 | }
|
549 |
|
550 | rightSource = toSourceNodeWhenNeeded(right).toString();
|
551 | if (rightSource.length === 0) {
|
552 | return [left];
|
553 | }
|
554 |
|
555 | leftCharCode = leftSource.charCodeAt(leftSource.length - 1);
|
556 | rightCharCode = rightSource.charCodeAt(0);
|
557 |
|
558 | if ((leftCharCode === 0x2B || leftCharCode === 0x2D ) && leftCharCode === rightCharCode ||
|
559 | esutils.code.isIdentifierPartES5(leftCharCode) && esutils.code.isIdentifierPartES5(rightCharCode) ||
|
560 | leftCharCode === 0x2F && rightCharCode === 0x69 ) {
|
561 | return [left, noEmptySpace(), right];
|
562 | } else if (esutils.code.isWhiteSpace(leftCharCode) || esutils.code.isLineTerminator(leftCharCode) ||
|
563 | esutils.code.isWhiteSpace(rightCharCode) || esutils.code.isLineTerminator(rightCharCode)) {
|
564 | return [left, right];
|
565 | }
|
566 | return [left, space, right];
|
567 | }
|
568 |
|
569 | function addIndent(stmt) {
|
570 | return [base, stmt];
|
571 | }
|
572 |
|
573 | function withIndent(fn) {
|
574 | var previousBase;
|
575 | previousBase = base;
|
576 | base += indent;
|
577 | fn(base);
|
578 | base = previousBase;
|
579 | }
|
580 |
|
581 | function calculateSpaces(str) {
|
582 | var i;
|
583 | for (i = str.length - 1; i >= 0; --i) {
|
584 | if (esutils.code.isLineTerminator(str.charCodeAt(i))) {
|
585 | break;
|
586 | }
|
587 | }
|
588 | return (str.length - 1) - i;
|
589 | }
|
590 |
|
591 | function adjustMultilineComment(value, specialBase) {
|
592 | var array, i, len, line, j, spaces, previousBase, sn;
|
593 |
|
594 | array = value.split(/\r\n|[\r\n]/);
|
595 | spaces = Number.MAX_VALUE;
|
596 |
|
597 |
|
598 | for (i = 1, len = array.length; i < len; ++i) {
|
599 | line = array[i];
|
600 | j = 0;
|
601 | while (j < line.length && esutils.code.isWhiteSpace(line.charCodeAt(j))) {
|
602 | ++j;
|
603 | }
|
604 | if (spaces > j) {
|
605 | spaces = j;
|
606 | }
|
607 | }
|
608 |
|
609 | if (typeof specialBase !== 'undefined') {
|
610 |
|
611 |
|
612 |
|
613 |
|
614 |
|
615 |
|
616 | previousBase = base;
|
617 | if (array[1][spaces] === '*') {
|
618 | specialBase += ' ';
|
619 | }
|
620 | base = specialBase;
|
621 | } else {
|
622 | if (spaces & 1) {
|
623 |
|
624 |
|
625 |
|
626 |
|
627 |
|
628 | --spaces;
|
629 | }
|
630 | previousBase = base;
|
631 | }
|
632 |
|
633 | for (i = 1, len = array.length; i < len; ++i) {
|
634 | sn = toSourceNodeWhenNeeded(addIndent(array[i].slice(spaces)));
|
635 | array[i] = sourceMap ? sn.join('') : sn;
|
636 | }
|
637 |
|
638 | base = previousBase;
|
639 |
|
640 | return array.join('\n');
|
641 | }
|
642 |
|
643 | function generateComment(comment, specialBase) {
|
644 | if (comment.type === 'Line') {
|
645 | if (endsWithLineTerminator(comment.value)) {
|
646 | return '//' + comment.value;
|
647 | } else {
|
648 |
|
649 | var result = '//' + comment.value;
|
650 | if (!preserveBlankLines) {
|
651 | result += '\n';
|
652 | }
|
653 | return result;
|
654 | }
|
655 | }
|
656 | if (extra.format.indent.adjustMultilineComment && /[\n\r]/.test(comment.value)) {
|
657 | return adjustMultilineComment('/*' + comment.value + '*/', specialBase);
|
658 | }
|
659 | return '/*' + comment.value + '*/';
|
660 | }
|
661 |
|
662 | function addComments(stmt, result) {
|
663 | var i, len, comment, save, tailingToStatement, specialBase, fragment,
|
664 | extRange, range, prevRange, prefix, infix, suffix, count;
|
665 |
|
666 | if (stmt.leadingComments && stmt.leadingComments.length > 0) {
|
667 | save = result;
|
668 |
|
669 | if (preserveBlankLines) {
|
670 | comment = stmt.leadingComments[0];
|
671 | result = [];
|
672 |
|
673 | extRange = comment.extendedRange;
|
674 | range = comment.range;
|
675 |
|
676 | prefix = sourceCode.substring(extRange[0], range[0]);
|
677 | count = (prefix.match(/\n/g) || []).length;
|
678 | if (count > 0) {
|
679 | result.push(stringRepeat('\n', count));
|
680 | result.push(addIndent(generateComment(comment)));
|
681 | } else {
|
682 | result.push(prefix);
|
683 | result.push(generateComment(comment));
|
684 | }
|
685 |
|
686 | prevRange = range;
|
687 |
|
688 | for (i = 1, len = stmt.leadingComments.length; i < len; i++) {
|
689 | comment = stmt.leadingComments[i];
|
690 | range = comment.range;
|
691 |
|
692 | infix = sourceCode.substring(prevRange[1], range[0]);
|
693 | count = (infix.match(/\n/g) || []).length;
|
694 | result.push(stringRepeat('\n', count));
|
695 | result.push(addIndent(generateComment(comment)));
|
696 |
|
697 | prevRange = range;
|
698 | }
|
699 |
|
700 | suffix = sourceCode.substring(range[1], extRange[1]);
|
701 | count = (suffix.match(/\n/g) || []).length;
|
702 | result.push(stringRepeat('\n', count));
|
703 | } else {
|
704 | comment = stmt.leadingComments[0];
|
705 | result = [];
|
706 | if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) {
|
707 | result.push('\n');
|
708 | }
|
709 | result.push(generateComment(comment));
|
710 | if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
711 | result.push('\n');
|
712 | }
|
713 |
|
714 | for (i = 1, len = stmt.leadingComments.length; i < len; ++i) {
|
715 | comment = stmt.leadingComments[i];
|
716 | fragment = [generateComment(comment)];
|
717 | if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
|
718 | fragment.push('\n');
|
719 | }
|
720 | result.push(addIndent(fragment));
|
721 | }
|
722 | }
|
723 |
|
724 | result.push(addIndent(save));
|
725 | }
|
726 |
|
727 | if (stmt.trailingComments) {
|
728 |
|
729 | if (preserveBlankLines) {
|
730 | comment = stmt.trailingComments[0];
|
731 | extRange = comment.extendedRange;
|
732 | range = comment.range;
|
733 |
|
734 | prefix = sourceCode.substring(extRange[0], range[0]);
|
735 | count = (prefix.match(/\n/g) || []).length;
|
736 |
|
737 | if (count > 0) {
|
738 | result.push(stringRepeat('\n', count));
|
739 | result.push(addIndent(generateComment(comment)));
|
740 | } else {
|
741 | result.push(prefix);
|
742 | result.push(generateComment(comment));
|
743 | }
|
744 | } else {
|
745 | tailingToStatement = !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
|
746 | specialBase = stringRepeat(' ', calculateSpaces(toSourceNodeWhenNeeded([base, result, indent]).toString()));
|
747 | for (i = 0, len = stmt.trailingComments.length; i < len; ++i) {
|
748 | comment = stmt.trailingComments[i];
|
749 | if (tailingToStatement) {
|
750 |
|
751 |
|
752 |
|
753 |
|
754 |
|
755 | if (i === 0) {
|
756 |
|
757 | result = [result, indent];
|
758 | } else {
|
759 | result = [result, specialBase];
|
760 | }
|
761 | result.push(generateComment(comment, specialBase));
|
762 | } else {
|
763 | result = [result, addIndent(generateComment(comment))];
|
764 | }
|
765 | if (i !== len - 1 && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
766 | result = [result, '\n'];
|
767 | }
|
768 | }
|
769 | }
|
770 | }
|
771 |
|
772 | return result;
|
773 | }
|
774 |
|
775 | function generateBlankLines(start, end, result) {
|
776 | var j, newlineCount = 0;
|
777 |
|
778 | for (j = start; j < end; j++) {
|
779 | if (sourceCode[j] === '\n') {
|
780 | newlineCount++;
|
781 | }
|
782 | }
|
783 |
|
784 | for (j = 1; j < newlineCount; j++) {
|
785 | result.push(newline);
|
786 | }
|
787 | }
|
788 |
|
789 | function parenthesize(text, current, should) {
|
790 | if (current < should) {
|
791 | return ['(', text, ')'];
|
792 | }
|
793 | return text;
|
794 | }
|
795 |
|
796 | function generateVerbatimString(string) {
|
797 | var i, iz, result;
|
798 | result = string.split(/\r\n|\n/);
|
799 | for (i = 1, iz = result.length; i < iz; i++) {
|
800 | result[i] = newline + base + result[i];
|
801 | }
|
802 | return result;
|
803 | }
|
804 |
|
805 | function generateVerbatim(expr, precedence) {
|
806 | var verbatim, result, prec;
|
807 | verbatim = expr[extra.verbatim];
|
808 |
|
809 | if (typeof verbatim === 'string') {
|
810 | result = parenthesize(generateVerbatimString(verbatim), Precedence.Sequence, precedence);
|
811 | } else {
|
812 |
|
813 | result = generateVerbatimString(verbatim.content);
|
814 | prec = (verbatim.precedence != null) ? verbatim.precedence : Precedence.Sequence;
|
815 | result = parenthesize(result, prec, precedence);
|
816 | }
|
817 |
|
818 | return toSourceNodeWhenNeeded(result, expr);
|
819 | }
|
820 |
|
821 | function CodeGenerator() {
|
822 | }
|
823 |
|
824 |
|
825 |
|
826 | CodeGenerator.prototype.maybeBlock = function(stmt, flags) {
|
827 | var result, noLeadingComment, that = this;
|
828 |
|
829 | noLeadingComment = !extra.comment || !stmt.leadingComments;
|
830 |
|
831 | if (stmt.type === Syntax.BlockStatement && noLeadingComment) {
|
832 | return [space, this.generateStatement(stmt, flags)];
|
833 | }
|
834 |
|
835 | if (stmt.type === Syntax.EmptyStatement && noLeadingComment) {
|
836 | return ';';
|
837 | }
|
838 |
|
839 | withIndent(function () {
|
840 | result = [
|
841 | newline,
|
842 | addIndent(that.generateStatement(stmt, flags))
|
843 | ];
|
844 | });
|
845 |
|
846 | return result;
|
847 | };
|
848 |
|
849 | CodeGenerator.prototype.maybeBlockSuffix = function (stmt, result) {
|
850 | var ends = endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
|
851 | if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) {
|
852 | return [result, space];
|
853 | }
|
854 | if (ends) {
|
855 | return [result, base];
|
856 | }
|
857 | return [result, newline, base];
|
858 | };
|
859 |
|
860 | function generateIdentifier(node) {
|
861 | return toSourceNodeWhenNeeded(node.name, node);
|
862 | }
|
863 |
|
864 | function generateAsyncPrefix(node, spaceRequired) {
|
865 | return node.async ? 'async' + (spaceRequired ? noEmptySpace() : space) : '';
|
866 | }
|
867 |
|
868 | function generateStarSuffix(node) {
|
869 | var isGenerator = node.generator && !extra.moz.starlessGenerator;
|
870 | return isGenerator ? '*' + space : '';
|
871 | }
|
872 |
|
873 | function generateMethodPrefix(prop) {
|
874 | var func = prop.value, prefix = '';
|
875 | if (func.async) {
|
876 | prefix += generateAsyncPrefix(func, !prop.computed);
|
877 | }
|
878 | if (func.generator) {
|
879 |
|
880 | prefix += generateStarSuffix(func) ? '*' : '';
|
881 | }
|
882 | return prefix;
|
883 | }
|
884 |
|
885 | CodeGenerator.prototype.generatePattern = function (node, precedence, flags) {
|
886 | if (node.type === Syntax.Identifier) {
|
887 | return generateIdentifier(node);
|
888 | }
|
889 | return this.generateExpression(node, precedence, flags);
|
890 | };
|
891 |
|
892 | CodeGenerator.prototype.generateFunctionParams = function (node) {
|
893 | var i, iz, result, hasDefault;
|
894 |
|
895 | hasDefault = false;
|
896 |
|
897 | if (node.type === Syntax.ArrowFunctionExpression &&
|
898 | !node.rest && (!node.defaults || node.defaults.length === 0) &&
|
899 | node.params.length === 1 && node.params[0].type === Syntax.Identifier) {
|
900 |
|
901 | result = [generateAsyncPrefix(node, true), generateIdentifier(node.params[0])];
|
902 | } else {
|
903 | result = node.type === Syntax.ArrowFunctionExpression ? [generateAsyncPrefix(node, false)] : [];
|
904 | result.push('(');
|
905 | if (node.defaults) {
|
906 | hasDefault = true;
|
907 | }
|
908 | for (i = 0, iz = node.params.length; i < iz; ++i) {
|
909 | if (hasDefault && node.defaults[i]) {
|
910 |
|
911 | result.push(this.generateAssignment(node.params[i], node.defaults[i], '=', Precedence.Assignment, E_TTT));
|
912 | } else {
|
913 | result.push(this.generatePattern(node.params[i], Precedence.Assignment, E_TTT));
|
914 | }
|
915 | if (i + 1 < iz) {
|
916 | result.push(',' + space);
|
917 | }
|
918 | }
|
919 |
|
920 | if (node.rest) {
|
921 | if (node.params.length) {
|
922 | result.push(',' + space);
|
923 | }
|
924 | result.push('...');
|
925 | result.push(generateIdentifier(node.rest));
|
926 | }
|
927 |
|
928 | result.push(')');
|
929 | }
|
930 |
|
931 | return result;
|
932 | };
|
933 |
|
934 | CodeGenerator.prototype.generateFunctionBody = function (node) {
|
935 | var result, expr;
|
936 |
|
937 | result = this.generateFunctionParams(node);
|
938 |
|
939 | if (node.type === Syntax.ArrowFunctionExpression) {
|
940 | result.push(space);
|
941 | result.push('=>');
|
942 | }
|
943 |
|
944 | if (node.expression) {
|
945 | result.push(space);
|
946 | expr = this.generateExpression(node.body, Precedence.Assignment, E_TTT);
|
947 | if (expr.toString().charAt(0) === '{') {
|
948 | expr = ['(', expr, ')'];
|
949 | }
|
950 | result.push(expr);
|
951 | } else {
|
952 | result.push(this.maybeBlock(node.body, S_TTFF));
|
953 | }
|
954 |
|
955 | return result;
|
956 | };
|
957 |
|
958 | CodeGenerator.prototype.generateIterationForStatement = function (operator, stmt, flags) {
|
959 | var result = ['for' + (stmt.await ? noEmptySpace() + 'await' : '') + space + '('], that = this;
|
960 | withIndent(function () {
|
961 | if (stmt.left.type === Syntax.VariableDeclaration) {
|
962 | withIndent(function () {
|
963 | result.push(stmt.left.kind + noEmptySpace());
|
964 | result.push(that.generateStatement(stmt.left.declarations[0], S_FFFF));
|
965 | });
|
966 | } else {
|
967 | result.push(that.generateExpression(stmt.left, Precedence.Call, E_TTT));
|
968 | }
|
969 |
|
970 | result = join(result, operator);
|
971 | result = [join(
|
972 | result,
|
973 | that.generateExpression(stmt.right, Precedence.Assignment, E_TTT)
|
974 | ), ')'];
|
975 | });
|
976 | result.push(this.maybeBlock(stmt.body, flags));
|
977 | return result;
|
978 | };
|
979 |
|
980 | CodeGenerator.prototype.generatePropertyKey = function (expr, computed) {
|
981 | var result = [];
|
982 |
|
983 | if (computed) {
|
984 | result.push('[');
|
985 | }
|
986 |
|
987 | result.push(this.generateExpression(expr, Precedence.Assignment, E_TTT));
|
988 |
|
989 | if (computed) {
|
990 | result.push(']');
|
991 | }
|
992 |
|
993 | return result;
|
994 | };
|
995 |
|
996 | CodeGenerator.prototype.generateAssignment = function (left, right, operator, precedence, flags) {
|
997 | if (Precedence.Assignment < precedence) {
|
998 | flags |= F_ALLOW_IN;
|
999 | }
|
1000 |
|
1001 | return parenthesize(
|
1002 | [
|
1003 | this.generateExpression(left, Precedence.Call, flags),
|
1004 | space + operator + space,
|
1005 | this.generateExpression(right, Precedence.Assignment, flags)
|
1006 | ],
|
1007 | Precedence.Assignment,
|
1008 | precedence
|
1009 | );
|
1010 | };
|
1011 |
|
1012 | CodeGenerator.prototype.semicolon = function (flags) {
|
1013 | if (!semicolons && flags & F_SEMICOLON_OPT) {
|
1014 | return '';
|
1015 | }
|
1016 | return ';';
|
1017 | };
|
1018 |
|
1019 |
|
1020 |
|
1021 | CodeGenerator.Statement = {
|
1022 |
|
1023 | BlockStatement: function (stmt, flags) {
|
1024 | var range, content, result = ['{', newline], that = this;
|
1025 |
|
1026 | withIndent(function () {
|
1027 |
|
1028 | if (stmt.body.length === 0 && preserveBlankLines) {
|
1029 | range = stmt.range;
|
1030 | if (range[1] - range[0] > 2) {
|
1031 | content = sourceCode.substring(range[0] + 1, range[1] - 1);
|
1032 | if (content[0] === '\n') {
|
1033 | result = ['{'];
|
1034 | }
|
1035 | result.push(content);
|
1036 | }
|
1037 | }
|
1038 |
|
1039 | var i, iz, fragment, bodyFlags;
|
1040 | bodyFlags = S_TFFF;
|
1041 | if (flags & F_FUNC_BODY) {
|
1042 | bodyFlags |= F_DIRECTIVE_CTX;
|
1043 | }
|
1044 |
|
1045 | for (i = 0, iz = stmt.body.length; i < iz; ++i) {
|
1046 | if (preserveBlankLines) {
|
1047 |
|
1048 | if (i === 0) {
|
1049 | if (stmt.body[0].leadingComments) {
|
1050 | range = stmt.body[0].leadingComments[0].extendedRange;
|
1051 | content = sourceCode.substring(range[0], range[1]);
|
1052 | if (content[0] === '\n') {
|
1053 | result = ['{'];
|
1054 | }
|
1055 | }
|
1056 | if (!stmt.body[0].leadingComments) {
|
1057 | generateBlankLines(stmt.range[0], stmt.body[0].range[0], result);
|
1058 | }
|
1059 | }
|
1060 |
|
1061 |
|
1062 | if (i > 0) {
|
1063 | if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) {
|
1064 | generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result);
|
1065 | }
|
1066 | }
|
1067 | }
|
1068 |
|
1069 | if (i === iz - 1) {
|
1070 | bodyFlags |= F_SEMICOLON_OPT;
|
1071 | }
|
1072 |
|
1073 | if (stmt.body[i].leadingComments && preserveBlankLines) {
|
1074 | fragment = that.generateStatement(stmt.body[i], bodyFlags);
|
1075 | } else {
|
1076 | fragment = addIndent(that.generateStatement(stmt.body[i], bodyFlags));
|
1077 | }
|
1078 |
|
1079 | result.push(fragment);
|
1080 | if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
|
1081 | if (preserveBlankLines && i < iz - 1) {
|
1082 |
|
1083 |
|
1084 | if (!stmt.body[i + 1].leadingComments) {
|
1085 | result.push(newline);
|
1086 | }
|
1087 | } else {
|
1088 | result.push(newline);
|
1089 | }
|
1090 | }
|
1091 |
|
1092 | if (preserveBlankLines) {
|
1093 |
|
1094 | if (i === iz - 1) {
|
1095 | if (!stmt.body[i].trailingComments) {
|
1096 | generateBlankLines(stmt.body[i].range[1], stmt.range[1], result);
|
1097 | }
|
1098 | }
|
1099 | }
|
1100 | }
|
1101 | });
|
1102 |
|
1103 | result.push(addIndent('}'));
|
1104 | return result;
|
1105 | },
|
1106 |
|
1107 | BreakStatement: function (stmt, flags) {
|
1108 | if (stmt.label) {
|
1109 | return 'break ' + stmt.label.name + this.semicolon(flags);
|
1110 | }
|
1111 | return 'break' + this.semicolon(flags);
|
1112 | },
|
1113 |
|
1114 | ContinueStatement: function (stmt, flags) {
|
1115 | if (stmt.label) {
|
1116 | return 'continue ' + stmt.label.name + this.semicolon(flags);
|
1117 | }
|
1118 | return 'continue' + this.semicolon(flags);
|
1119 | },
|
1120 |
|
1121 | ClassBody: function (stmt, flags) {
|
1122 | var result = [ '{', newline], that = this;
|
1123 |
|
1124 | withIndent(function (indent) {
|
1125 | var i, iz;
|
1126 |
|
1127 | for (i = 0, iz = stmt.body.length; i < iz; ++i) {
|
1128 | result.push(indent);
|
1129 | result.push(that.generateExpression(stmt.body[i], Precedence.Sequence, E_TTT));
|
1130 | if (i + 1 < iz) {
|
1131 | result.push(newline);
|
1132 | }
|
1133 | }
|
1134 | });
|
1135 |
|
1136 | if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
1137 | result.push(newline);
|
1138 | }
|
1139 | result.push(base);
|
1140 | result.push('}');
|
1141 | return result;
|
1142 | },
|
1143 |
|
1144 | ClassDeclaration: function (stmt, flags) {
|
1145 | var result, fragment;
|
1146 | result = ['class'];
|
1147 | if (stmt.id) {
|
1148 | result = join(result, this.generateExpression(stmt.id, Precedence.Sequence, E_TTT));
|
1149 | }
|
1150 | if (stmt.superClass) {
|
1151 | fragment = join('extends', this.generateExpression(stmt.superClass, Precedence.Unary, E_TTT));
|
1152 | result = join(result, fragment);
|
1153 | }
|
1154 | result.push(space);
|
1155 | result.push(this.generateStatement(stmt.body, S_TFFT));
|
1156 | return result;
|
1157 | },
|
1158 |
|
1159 | DirectiveStatement: function (stmt, flags) {
|
1160 | if (extra.raw && stmt.raw) {
|
1161 | return stmt.raw + this.semicolon(flags);
|
1162 | }
|
1163 | return escapeDirective(stmt.directive) + this.semicolon(flags);
|
1164 | },
|
1165 |
|
1166 | DoWhileStatement: function (stmt, flags) {
|
1167 |
|
1168 | var result = join('do', this.maybeBlock(stmt.body, S_TFFF));
|
1169 | result = this.maybeBlockSuffix(stmt.body, result);
|
1170 | return join(result, [
|
1171 | 'while' + space + '(',
|
1172 | this.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
|
1173 | ')' + this.semicolon(flags)
|
1174 | ]);
|
1175 | },
|
1176 |
|
1177 | CatchClause: function (stmt, flags) {
|
1178 | var result, that = this;
|
1179 | withIndent(function () {
|
1180 | var guard;
|
1181 |
|
1182 | if (stmt.param) {
|
1183 | result = [
|
1184 | 'catch' + space + '(',
|
1185 | that.generateExpression(stmt.param, Precedence.Sequence, E_TTT),
|
1186 | ')'
|
1187 | ];
|
1188 |
|
1189 | if (stmt.guard) {
|
1190 | guard = that.generateExpression(stmt.guard, Precedence.Sequence, E_TTT);
|
1191 | result.splice(2, 0, ' if ', guard);
|
1192 | }
|
1193 | } else {
|
1194 | result = ['catch'];
|
1195 | }
|
1196 | });
|
1197 | result.push(this.maybeBlock(stmt.body, S_TFFF));
|
1198 | return result;
|
1199 | },
|
1200 |
|
1201 | DebuggerStatement: function (stmt, flags) {
|
1202 | return 'debugger' + this.semicolon(flags);
|
1203 | },
|
1204 |
|
1205 | EmptyStatement: function (stmt, flags) {
|
1206 | return ';';
|
1207 | },
|
1208 |
|
1209 | ExportDefaultDeclaration: function (stmt, flags) {
|
1210 | var result = [ 'export' ], bodyFlags;
|
1211 |
|
1212 | bodyFlags = (flags & F_SEMICOLON_OPT) ? S_TFFT : S_TFFF;
|
1213 |
|
1214 |
|
1215 |
|
1216 | result = join(result, 'default');
|
1217 | if (isStatement(stmt.declaration)) {
|
1218 | result = join(result, this.generateStatement(stmt.declaration, bodyFlags));
|
1219 | } else {
|
1220 | result = join(result, this.generateExpression(stmt.declaration, Precedence.Assignment, E_TTT) + this.semicolon(flags));
|
1221 | }
|
1222 | return result;
|
1223 | },
|
1224 |
|
1225 | ExportNamedDeclaration: function (stmt, flags) {
|
1226 | var result = [ 'export' ], bodyFlags, that = this;
|
1227 |
|
1228 | bodyFlags = (flags & F_SEMICOLON_OPT) ? S_TFFT : S_TFFF;
|
1229 |
|
1230 |
|
1231 |
|
1232 | if (stmt.declaration) {
|
1233 | return join(result, this.generateStatement(stmt.declaration, bodyFlags));
|
1234 | }
|
1235 |
|
1236 |
|
1237 |
|
1238 | if (stmt.specifiers) {
|
1239 | if (stmt.specifiers.length === 0) {
|
1240 | result = join(result, '{' + space + '}');
|
1241 | } else if (stmt.specifiers[0].type === Syntax.ExportBatchSpecifier) {
|
1242 | result = join(result, this.generateExpression(stmt.specifiers[0], Precedence.Sequence, E_TTT));
|
1243 | } else {
|
1244 | result = join(result, '{');
|
1245 | withIndent(function (indent) {
|
1246 | var i, iz;
|
1247 | result.push(newline);
|
1248 | for (i = 0, iz = stmt.specifiers.length; i < iz; ++i) {
|
1249 | result.push(indent);
|
1250 | result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT));
|
1251 | if (i + 1 < iz) {
|
1252 | result.push(',' + newline);
|
1253 | }
|
1254 | }
|
1255 | });
|
1256 | if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
1257 | result.push(newline);
|
1258 | }
|
1259 | result.push(base + '}');
|
1260 | }
|
1261 |
|
1262 | if (stmt.source) {
|
1263 | result = join(result, [
|
1264 | 'from' + space,
|
1265 |
|
1266 | this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
|
1267 | this.semicolon(flags)
|
1268 | ]);
|
1269 | } else {
|
1270 | result.push(this.semicolon(flags));
|
1271 | }
|
1272 | }
|
1273 | return result;
|
1274 | },
|
1275 |
|
1276 | ExportAllDeclaration: function (stmt, flags) {
|
1277 |
|
1278 | return [
|
1279 | 'export' + space,
|
1280 | '*' + space,
|
1281 | 'from' + space,
|
1282 |
|
1283 | this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
|
1284 | this.semicolon(flags)
|
1285 | ];
|
1286 | },
|
1287 |
|
1288 | ExpressionStatement: function (stmt, flags) {
|
1289 | var result, fragment;
|
1290 |
|
1291 | function isClassPrefixed(fragment) {
|
1292 | var code;
|
1293 | if (fragment.slice(0, 5) !== 'class') {
|
1294 | return false;
|
1295 | }
|
1296 | code = fragment.charCodeAt(5);
|
1297 | return code === 0x7B || esutils.code.isWhiteSpace(code) || esutils.code.isLineTerminator(code);
|
1298 | }
|
1299 |
|
1300 | function isFunctionPrefixed(fragment) {
|
1301 | var code;
|
1302 | if (fragment.slice(0, 8) !== 'function') {
|
1303 | return false;
|
1304 | }
|
1305 | code = fragment.charCodeAt(8);
|
1306 | return code === 0x28 || esutils.code.isWhiteSpace(code) || code === 0x2A || esutils.code.isLineTerminator(code);
|
1307 | }
|
1308 |
|
1309 | function isAsyncPrefixed(fragment) {
|
1310 | var code, i, iz;
|
1311 | if (fragment.slice(0, 5) !== 'async') {
|
1312 | return false;
|
1313 | }
|
1314 | if (!esutils.code.isWhiteSpace(fragment.charCodeAt(5))) {
|
1315 | return false;
|
1316 | }
|
1317 | for (i = 6, iz = fragment.length; i < iz; ++i) {
|
1318 | if (!esutils.code.isWhiteSpace(fragment.charCodeAt(i))) {
|
1319 | break;
|
1320 | }
|
1321 | }
|
1322 | if (i === iz) {
|
1323 | return false;
|
1324 | }
|
1325 | if (fragment.slice(i, i + 8) !== 'function') {
|
1326 | return false;
|
1327 | }
|
1328 | code = fragment.charCodeAt(i + 8);
|
1329 | return code === 0x28 || esutils.code.isWhiteSpace(code) || code === 0x2A || esutils.code.isLineTerminator(code);
|
1330 | }
|
1331 |
|
1332 | result = [this.generateExpression(stmt.expression, Precedence.Sequence, E_TTT)];
|
1333 |
|
1334 |
|
1335 | fragment = toSourceNodeWhenNeeded(result).toString();
|
1336 | if (fragment.charCodeAt(0) === 0x7B ||
|
1337 | isClassPrefixed(fragment) ||
|
1338 | isFunctionPrefixed(fragment) ||
|
1339 | isAsyncPrefixed(fragment) ||
|
1340 | (directive && (flags & F_DIRECTIVE_CTX) && stmt.expression.type === Syntax.Literal && typeof stmt.expression.value === 'string')) {
|
1341 | result = ['(', result, ')' + this.semicolon(flags)];
|
1342 | } else {
|
1343 | result.push(this.semicolon(flags));
|
1344 | }
|
1345 | return result;
|
1346 | },
|
1347 |
|
1348 | ImportDeclaration: function (stmt, flags) {
|
1349 |
|
1350 |
|
1351 |
|
1352 | var result, cursor, that = this;
|
1353 |
|
1354 |
|
1355 |
|
1356 |
|
1357 | if (stmt.specifiers.length === 0) {
|
1358 |
|
1359 | return [
|
1360 | 'import',
|
1361 | space,
|
1362 |
|
1363 | this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
|
1364 | this.semicolon(flags)
|
1365 | ];
|
1366 | }
|
1367 |
|
1368 |
|
1369 | result = [
|
1370 | 'import'
|
1371 | ];
|
1372 | cursor = 0;
|
1373 |
|
1374 |
|
1375 | if (stmt.specifiers[cursor].type === Syntax.ImportDefaultSpecifier) {
|
1376 | result = join(result, [
|
1377 | this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT)
|
1378 | ]);
|
1379 | ++cursor;
|
1380 | }
|
1381 |
|
1382 | if (stmt.specifiers[cursor]) {
|
1383 | if (cursor !== 0) {
|
1384 | result.push(',');
|
1385 | }
|
1386 |
|
1387 | if (stmt.specifiers[cursor].type === Syntax.ImportNamespaceSpecifier) {
|
1388 |
|
1389 | result = join(result, [
|
1390 | space,
|
1391 | this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT)
|
1392 | ]);
|
1393 | } else {
|
1394 |
|
1395 | result.push(space + '{');
|
1396 |
|
1397 | if ((stmt.specifiers.length - cursor) === 1) {
|
1398 |
|
1399 | result.push(space);
|
1400 | result.push(this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT));
|
1401 | result.push(space + '}' + space);
|
1402 | } else {
|
1403 |
|
1404 |
|
1405 |
|
1406 |
|
1407 | withIndent(function (indent) {
|
1408 | var i, iz;
|
1409 | result.push(newline);
|
1410 | for (i = cursor, iz = stmt.specifiers.length; i < iz; ++i) {
|
1411 | result.push(indent);
|
1412 | result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT));
|
1413 | if (i + 1 < iz) {
|
1414 | result.push(',' + newline);
|
1415 | }
|
1416 | }
|
1417 | });
|
1418 | if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
1419 | result.push(newline);
|
1420 | }
|
1421 | result.push(base + '}' + space);
|
1422 | }
|
1423 | }
|
1424 | }
|
1425 |
|
1426 | result = join(result, [
|
1427 | 'from' + space,
|
1428 |
|
1429 | this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
|
1430 | this.semicolon(flags)
|
1431 | ]);
|
1432 | return result;
|
1433 | },
|
1434 |
|
1435 | VariableDeclarator: function (stmt, flags) {
|
1436 | var itemFlags = (flags & F_ALLOW_IN) ? E_TTT : E_FTT;
|
1437 | if (stmt.init) {
|
1438 | return [
|
1439 | this.generateExpression(stmt.id, Precedence.Assignment, itemFlags),
|
1440 | space,
|
1441 | '=',
|
1442 | space,
|
1443 | this.generateExpression(stmt.init, Precedence.Assignment, itemFlags)
|
1444 | ];
|
1445 | }
|
1446 | return this.generatePattern(stmt.id, Precedence.Assignment, itemFlags);
|
1447 | },
|
1448 |
|
1449 | VariableDeclaration: function (stmt, flags) {
|
1450 |
|
1451 |
|
1452 |
|
1453 | var result, i, iz, node, bodyFlags, that = this;
|
1454 |
|
1455 | result = [ stmt.kind ];
|
1456 |
|
1457 | bodyFlags = (flags & F_ALLOW_IN) ? S_TFFF : S_FFFF;
|
1458 |
|
1459 | function block() {
|
1460 | node = stmt.declarations[0];
|
1461 | if (extra.comment && node.leadingComments) {
|
1462 | result.push('\n');
|
1463 | result.push(addIndent(that.generateStatement(node, bodyFlags)));
|
1464 | } else {
|
1465 | result.push(noEmptySpace());
|
1466 | result.push(that.generateStatement(node, bodyFlags));
|
1467 | }
|
1468 |
|
1469 | for (i = 1, iz = stmt.declarations.length; i < iz; ++i) {
|
1470 | node = stmt.declarations[i];
|
1471 | if (extra.comment && node.leadingComments) {
|
1472 | result.push(',' + newline);
|
1473 | result.push(addIndent(that.generateStatement(node, bodyFlags)));
|
1474 | } else {
|
1475 | result.push(',' + space);
|
1476 | result.push(that.generateStatement(node, bodyFlags));
|
1477 | }
|
1478 | }
|
1479 | }
|
1480 |
|
1481 | if (stmt.declarations.length > 1) {
|
1482 | withIndent(block);
|
1483 | } else {
|
1484 | block();
|
1485 | }
|
1486 |
|
1487 | result.push(this.semicolon(flags));
|
1488 |
|
1489 | return result;
|
1490 | },
|
1491 |
|
1492 | ThrowStatement: function (stmt, flags) {
|
1493 | return [join(
|
1494 | 'throw',
|
1495 | this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT)
|
1496 | ), this.semicolon(flags)];
|
1497 | },
|
1498 |
|
1499 | TryStatement: function (stmt, flags) {
|
1500 | var result, i, iz, guardedHandlers;
|
1501 |
|
1502 | result = ['try', this.maybeBlock(stmt.block, S_TFFF)];
|
1503 | result = this.maybeBlockSuffix(stmt.block, result);
|
1504 |
|
1505 | if (stmt.handlers) {
|
1506 |
|
1507 | for (i = 0, iz = stmt.handlers.length; i < iz; ++i) {
|
1508 | result = join(result, this.generateStatement(stmt.handlers[i], S_TFFF));
|
1509 | if (stmt.finalizer || i + 1 !== iz) {
|
1510 | result = this.maybeBlockSuffix(stmt.handlers[i].body, result);
|
1511 | }
|
1512 | }
|
1513 | } else {
|
1514 | guardedHandlers = stmt.guardedHandlers || [];
|
1515 |
|
1516 | for (i = 0, iz = guardedHandlers.length; i < iz; ++i) {
|
1517 | result = join(result, this.generateStatement(guardedHandlers[i], S_TFFF));
|
1518 | if (stmt.finalizer || i + 1 !== iz) {
|
1519 | result = this.maybeBlockSuffix(guardedHandlers[i].body, result);
|
1520 | }
|
1521 | }
|
1522 |
|
1523 |
|
1524 | if (stmt.handler) {
|
1525 | if (Array.isArray(stmt.handler)) {
|
1526 | for (i = 0, iz = stmt.handler.length; i < iz; ++i) {
|
1527 | result = join(result, this.generateStatement(stmt.handler[i], S_TFFF));
|
1528 | if (stmt.finalizer || i + 1 !== iz) {
|
1529 | result = this.maybeBlockSuffix(stmt.handler[i].body, result);
|
1530 | }
|
1531 | }
|
1532 | } else {
|
1533 | result = join(result, this.generateStatement(stmt.handler, S_TFFF));
|
1534 | if (stmt.finalizer) {
|
1535 | result = this.maybeBlockSuffix(stmt.handler.body, result);
|
1536 | }
|
1537 | }
|
1538 | }
|
1539 | }
|
1540 | if (stmt.finalizer) {
|
1541 | result = join(result, ['finally', this.maybeBlock(stmt.finalizer, S_TFFF)]);
|
1542 | }
|
1543 | return result;
|
1544 | },
|
1545 |
|
1546 | SwitchStatement: function (stmt, flags) {
|
1547 | var result, fragment, i, iz, bodyFlags, that = this;
|
1548 | withIndent(function () {
|
1549 | result = [
|
1550 | 'switch' + space + '(',
|
1551 | that.generateExpression(stmt.discriminant, Precedence.Sequence, E_TTT),
|
1552 | ')' + space + '{' + newline
|
1553 | ];
|
1554 | });
|
1555 | if (stmt.cases) {
|
1556 | bodyFlags = S_TFFF;
|
1557 | for (i = 0, iz = stmt.cases.length; i < iz; ++i) {
|
1558 | if (i === iz - 1) {
|
1559 | bodyFlags |= F_SEMICOLON_OPT;
|
1560 | }
|
1561 | fragment = addIndent(this.generateStatement(stmt.cases[i], bodyFlags));
|
1562 | result.push(fragment);
|
1563 | if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
|
1564 | result.push(newline);
|
1565 | }
|
1566 | }
|
1567 | }
|
1568 | result.push(addIndent('}'));
|
1569 | return result;
|
1570 | },
|
1571 |
|
1572 | SwitchCase: function (stmt, flags) {
|
1573 | var result, fragment, i, iz, bodyFlags, that = this;
|
1574 | withIndent(function () {
|
1575 | if (stmt.test) {
|
1576 | result = [
|
1577 | join('case', that.generateExpression(stmt.test, Precedence.Sequence, E_TTT)),
|
1578 | ':'
|
1579 | ];
|
1580 | } else {
|
1581 | result = ['default:'];
|
1582 | }
|
1583 |
|
1584 | i = 0;
|
1585 | iz = stmt.consequent.length;
|
1586 | if (iz && stmt.consequent[0].type === Syntax.BlockStatement) {
|
1587 | fragment = that.maybeBlock(stmt.consequent[0], S_TFFF);
|
1588 | result.push(fragment);
|
1589 | i = 1;
|
1590 | }
|
1591 |
|
1592 | if (i !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
1593 | result.push(newline);
|
1594 | }
|
1595 |
|
1596 | bodyFlags = S_TFFF;
|
1597 | for (; i < iz; ++i) {
|
1598 | if (i === iz - 1 && flags & F_SEMICOLON_OPT) {
|
1599 | bodyFlags |= F_SEMICOLON_OPT;
|
1600 | }
|
1601 | fragment = addIndent(that.generateStatement(stmt.consequent[i], bodyFlags));
|
1602 | result.push(fragment);
|
1603 | if (i + 1 !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
|
1604 | result.push(newline);
|
1605 | }
|
1606 | }
|
1607 | });
|
1608 | return result;
|
1609 | },
|
1610 |
|
1611 | IfStatement: function (stmt, flags) {
|
1612 | var result, bodyFlags, semicolonOptional, that = this;
|
1613 | withIndent(function () {
|
1614 | result = [
|
1615 | 'if' + space + '(',
|
1616 | that.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
|
1617 | ')'
|
1618 | ];
|
1619 | });
|
1620 | semicolonOptional = flags & F_SEMICOLON_OPT;
|
1621 | bodyFlags = S_TFFF;
|
1622 | if (semicolonOptional) {
|
1623 | bodyFlags |= F_SEMICOLON_OPT;
|
1624 | }
|
1625 | if (stmt.alternate) {
|
1626 | result.push(this.maybeBlock(stmt.consequent, S_TFFF));
|
1627 | result = this.maybeBlockSuffix(stmt.consequent, result);
|
1628 | if (stmt.alternate.type === Syntax.IfStatement) {
|
1629 | result = join(result, ['else ', this.generateStatement(stmt.alternate, bodyFlags)]);
|
1630 | } else {
|
1631 | result = join(result, join('else', this.maybeBlock(stmt.alternate, bodyFlags)));
|
1632 | }
|
1633 | } else {
|
1634 | result.push(this.maybeBlock(stmt.consequent, bodyFlags));
|
1635 | }
|
1636 | return result;
|
1637 | },
|
1638 |
|
1639 | ForStatement: function (stmt, flags) {
|
1640 | var result, that = this;
|
1641 | withIndent(function () {
|
1642 | result = ['for' + space + '('];
|
1643 | if (stmt.init) {
|
1644 | if (stmt.init.type === Syntax.VariableDeclaration) {
|
1645 | result.push(that.generateStatement(stmt.init, S_FFFF));
|
1646 | } else {
|
1647 |
|
1648 | result.push(that.generateExpression(stmt.init, Precedence.Sequence, E_FTT));
|
1649 | result.push(';');
|
1650 | }
|
1651 | } else {
|
1652 | result.push(';');
|
1653 | }
|
1654 |
|
1655 | if (stmt.test) {
|
1656 | result.push(space);
|
1657 | result.push(that.generateExpression(stmt.test, Precedence.Sequence, E_TTT));
|
1658 | result.push(';');
|
1659 | } else {
|
1660 | result.push(';');
|
1661 | }
|
1662 |
|
1663 | if (stmt.update) {
|
1664 | result.push(space);
|
1665 | result.push(that.generateExpression(stmt.update, Precedence.Sequence, E_TTT));
|
1666 | result.push(')');
|
1667 | } else {
|
1668 | result.push(')');
|
1669 | }
|
1670 | });
|
1671 |
|
1672 | result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
|
1673 | return result;
|
1674 | },
|
1675 |
|
1676 | ForInStatement: function (stmt, flags) {
|
1677 | return this.generateIterationForStatement('in', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF);
|
1678 | },
|
1679 |
|
1680 | ForOfStatement: function (stmt, flags) {
|
1681 | return this.generateIterationForStatement('of', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF);
|
1682 | },
|
1683 |
|
1684 | LabeledStatement: function (stmt, flags) {
|
1685 | return [stmt.label.name + ':', this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)];
|
1686 | },
|
1687 |
|
1688 | Program: function (stmt, flags) {
|
1689 | var result, fragment, i, iz, bodyFlags;
|
1690 | iz = stmt.body.length;
|
1691 | result = [safeConcatenation && iz > 0 ? '\n' : ''];
|
1692 | bodyFlags = S_TFTF;
|
1693 | for (i = 0; i < iz; ++i) {
|
1694 | if (!safeConcatenation && i === iz - 1) {
|
1695 | bodyFlags |= F_SEMICOLON_OPT;
|
1696 | }
|
1697 |
|
1698 | if (preserveBlankLines) {
|
1699 |
|
1700 | if (i === 0) {
|
1701 | if (!stmt.body[0].leadingComments) {
|
1702 | generateBlankLines(stmt.range[0], stmt.body[i].range[0], result);
|
1703 | }
|
1704 | }
|
1705 |
|
1706 |
|
1707 | if (i > 0) {
|
1708 | if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) {
|
1709 | generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result);
|
1710 | }
|
1711 | }
|
1712 | }
|
1713 |
|
1714 | fragment = addIndent(this.generateStatement(stmt.body[i], bodyFlags));
|
1715 | result.push(fragment);
|
1716 | if (i + 1 < iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
|
1717 | if (preserveBlankLines) {
|
1718 | if (!stmt.body[i + 1].leadingComments) {
|
1719 | result.push(newline);
|
1720 | }
|
1721 | } else {
|
1722 | result.push(newline);
|
1723 | }
|
1724 | }
|
1725 |
|
1726 | if (preserveBlankLines) {
|
1727 |
|
1728 | if (i === iz - 1) {
|
1729 | if (!stmt.body[i].trailingComments) {
|
1730 | generateBlankLines(stmt.body[i].range[1], stmt.range[1], result);
|
1731 | }
|
1732 | }
|
1733 | }
|
1734 | }
|
1735 | return result;
|
1736 | },
|
1737 |
|
1738 | FunctionDeclaration: function (stmt, flags) {
|
1739 | return [
|
1740 | generateAsyncPrefix(stmt, true),
|
1741 | 'function',
|
1742 | generateStarSuffix(stmt) || noEmptySpace(),
|
1743 | stmt.id ? generateIdentifier(stmt.id) : '',
|
1744 | this.generateFunctionBody(stmt)
|
1745 | ];
|
1746 | },
|
1747 |
|
1748 | ReturnStatement: function (stmt, flags) {
|
1749 | if (stmt.argument) {
|
1750 | return [join(
|
1751 | 'return',
|
1752 | this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT)
|
1753 | ), this.semicolon(flags)];
|
1754 | }
|
1755 | return ['return' + this.semicolon(flags)];
|
1756 | },
|
1757 |
|
1758 | WhileStatement: function (stmt, flags) {
|
1759 | var result, that = this;
|
1760 | withIndent(function () {
|
1761 | result = [
|
1762 | 'while' + space + '(',
|
1763 | that.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
|
1764 | ')'
|
1765 | ];
|
1766 | });
|
1767 | result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
|
1768 | return result;
|
1769 | },
|
1770 |
|
1771 | WithStatement: function (stmt, flags) {
|
1772 | var result, that = this;
|
1773 | withIndent(function () {
|
1774 | result = [
|
1775 | 'with' + space + '(',
|
1776 | that.generateExpression(stmt.object, Precedence.Sequence, E_TTT),
|
1777 | ')'
|
1778 | ];
|
1779 | });
|
1780 | result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
|
1781 | return result;
|
1782 | }
|
1783 |
|
1784 | };
|
1785 |
|
1786 | merge(CodeGenerator.prototype, CodeGenerator.Statement);
|
1787 |
|
1788 |
|
1789 |
|
1790 | CodeGenerator.Expression = {
|
1791 |
|
1792 | SequenceExpression: function (expr, precedence, flags) {
|
1793 | var result, i, iz;
|
1794 | if (Precedence.Sequence < precedence) {
|
1795 | flags |= F_ALLOW_IN;
|
1796 | }
|
1797 | result = [];
|
1798 | for (i = 0, iz = expr.expressions.length; i < iz; ++i) {
|
1799 | result.push(this.generateExpression(expr.expressions[i], Precedence.Assignment, flags));
|
1800 | if (i + 1 < iz) {
|
1801 | result.push(',' + space);
|
1802 | }
|
1803 | }
|
1804 | return parenthesize(result, Precedence.Sequence, precedence);
|
1805 | },
|
1806 |
|
1807 | AssignmentExpression: function (expr, precedence, flags) {
|
1808 | return this.generateAssignment(expr.left, expr.right, expr.operator, precedence, flags);
|
1809 | },
|
1810 |
|
1811 | ArrowFunctionExpression: function (expr, precedence, flags) {
|
1812 | return parenthesize(this.generateFunctionBody(expr), Precedence.ArrowFunction, precedence);
|
1813 | },
|
1814 |
|
1815 | ConditionalExpression: function (expr, precedence, flags) {
|
1816 | if (Precedence.Conditional < precedence) {
|
1817 | flags |= F_ALLOW_IN;
|
1818 | }
|
1819 | return parenthesize(
|
1820 | [
|
1821 | this.generateExpression(expr.test, Precedence.LogicalOR, flags),
|
1822 | space + '?' + space,
|
1823 | this.generateExpression(expr.consequent, Precedence.Assignment, flags),
|
1824 | space + ':' + space,
|
1825 | this.generateExpression(expr.alternate, Precedence.Assignment, flags)
|
1826 | ],
|
1827 | Precedence.Conditional,
|
1828 | precedence
|
1829 | );
|
1830 | },
|
1831 |
|
1832 | LogicalExpression: function (expr, precedence, flags) {
|
1833 | return this.BinaryExpression(expr, precedence, flags);
|
1834 | },
|
1835 |
|
1836 | BinaryExpression: function (expr, precedence, flags) {
|
1837 | var result, leftPrecedence, rightPrecedence, currentPrecedence, fragment, leftSource;
|
1838 | currentPrecedence = BinaryPrecedence[expr.operator];
|
1839 | leftPrecedence = expr.operator === '**' ? Precedence.Postfix : currentPrecedence;
|
1840 | rightPrecedence = expr.operator === '**' ? currentPrecedence : currentPrecedence + 1;
|
1841 |
|
1842 | if (currentPrecedence < precedence) {
|
1843 | flags |= F_ALLOW_IN;
|
1844 | }
|
1845 |
|
1846 | fragment = this.generateExpression(expr.left, leftPrecedence, flags);
|
1847 |
|
1848 | leftSource = fragment.toString();
|
1849 |
|
1850 | if (leftSource.charCodeAt(leftSource.length - 1) === 0x2F && esutils.code.isIdentifierPartES5(expr.operator.charCodeAt(0))) {
|
1851 | result = [fragment, noEmptySpace(), expr.operator];
|
1852 | } else {
|
1853 | result = join(fragment, expr.operator);
|
1854 | }
|
1855 |
|
1856 | fragment = this.generateExpression(expr.right, rightPrecedence, flags);
|
1857 |
|
1858 | if (expr.operator === '/' && fragment.toString().charAt(0) === '/' ||
|
1859 | expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') {
|
1860 |
|
1861 | result.push(noEmptySpace());
|
1862 | result.push(fragment);
|
1863 | } else {
|
1864 | result = join(result, fragment);
|
1865 | }
|
1866 |
|
1867 | if (expr.operator === 'in' && !(flags & F_ALLOW_IN)) {
|
1868 | return ['(', result, ')'];
|
1869 | }
|
1870 | return parenthesize(result, currentPrecedence, precedence);
|
1871 | },
|
1872 |
|
1873 | CallExpression: function (expr, precedence, flags) {
|
1874 | var result, i, iz;
|
1875 |
|
1876 |
|
1877 | result = [this.generateExpression(expr.callee, Precedence.Call, E_TTF)];
|
1878 |
|
1879 | if (expr.optional) {
|
1880 | result.push('?.');
|
1881 | }
|
1882 |
|
1883 | result.push('(');
|
1884 | for (i = 0, iz = expr['arguments'].length; i < iz; ++i) {
|
1885 | result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT));
|
1886 | if (i + 1 < iz) {
|
1887 | result.push(',' + space);
|
1888 | }
|
1889 | }
|
1890 | result.push(')');
|
1891 |
|
1892 | if (!(flags & F_ALLOW_CALL)) {
|
1893 | return ['(', result, ')'];
|
1894 | }
|
1895 |
|
1896 | return parenthesize(result, Precedence.Call, precedence);
|
1897 | },
|
1898 |
|
1899 | ChainExpression: function (expr, precedence, flags) {
|
1900 | if (Precedence.OptionalChaining < precedence) {
|
1901 | flags |= F_ALLOW_CALL;
|
1902 | }
|
1903 |
|
1904 | var result = this.generateExpression(expr.expression, Precedence.OptionalChaining, flags);
|
1905 |
|
1906 | return parenthesize(result, Precedence.OptionalChaining, precedence);
|
1907 | },
|
1908 |
|
1909 | NewExpression: function (expr, precedence, flags) {
|
1910 | var result, length, i, iz, itemFlags;
|
1911 | length = expr['arguments'].length;
|
1912 |
|
1913 |
|
1914 |
|
1915 | itemFlags = (flags & F_ALLOW_UNPARATH_NEW && !parentheses && length === 0) ? E_TFT : E_TFF;
|
1916 |
|
1917 | result = join(
|
1918 | 'new',
|
1919 | this.generateExpression(expr.callee, Precedence.New, itemFlags)
|
1920 | );
|
1921 |
|
1922 | if (!(flags & F_ALLOW_UNPARATH_NEW) || parentheses || length > 0) {
|
1923 | result.push('(');
|
1924 | for (i = 0, iz = length; i < iz; ++i) {
|
1925 | result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT));
|
1926 | if (i + 1 < iz) {
|
1927 | result.push(',' + space);
|
1928 | }
|
1929 | }
|
1930 | result.push(')');
|
1931 | }
|
1932 |
|
1933 | return parenthesize(result, Precedence.New, precedence);
|
1934 | },
|
1935 |
|
1936 | MemberExpression: function (expr, precedence, flags) {
|
1937 | var result, fragment;
|
1938 |
|
1939 |
|
1940 | result = [this.generateExpression(expr.object, Precedence.Call, (flags & F_ALLOW_CALL) ? E_TTF : E_TFF)];
|
1941 |
|
1942 | if (expr.computed) {
|
1943 | if (expr.optional) {
|
1944 | result.push('?.');
|
1945 | }
|
1946 |
|
1947 | result.push('[');
|
1948 | result.push(this.generateExpression(expr.property, Precedence.Sequence, flags & F_ALLOW_CALL ? E_TTT : E_TFT));
|
1949 | result.push(']');
|
1950 | } else {
|
1951 | if (!expr.optional && expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') {
|
1952 | fragment = toSourceNodeWhenNeeded(result).toString();
|
1953 |
|
1954 |
|
1955 |
|
1956 |
|
1957 |
|
1958 |
|
1959 | if (
|
1960 | fragment.indexOf('.') < 0 &&
|
1961 | !/[eExX]/.test(fragment) &&
|
1962 | esutils.code.isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) &&
|
1963 | !(fragment.length >= 2 && fragment.charCodeAt(0) === 48)
|
1964 | ) {
|
1965 | result.push(' ');
|
1966 | }
|
1967 | }
|
1968 | result.push(expr.optional ? '?.' : '.');
|
1969 | result.push(generateIdentifier(expr.property));
|
1970 | }
|
1971 |
|
1972 | return parenthesize(result, Precedence.Member, precedence);
|
1973 | },
|
1974 |
|
1975 | MetaProperty: function (expr, precedence, flags) {
|
1976 | var result;
|
1977 | result = [];
|
1978 | result.push(typeof expr.meta === "string" ? expr.meta : generateIdentifier(expr.meta));
|
1979 | result.push('.');
|
1980 | result.push(typeof expr.property === "string" ? expr.property : generateIdentifier(expr.property));
|
1981 | return parenthesize(result, Precedence.Member, precedence);
|
1982 | },
|
1983 |
|
1984 | UnaryExpression: function (expr, precedence, flags) {
|
1985 | var result, fragment, rightCharCode, leftSource, leftCharCode;
|
1986 | fragment = this.generateExpression(expr.argument, Precedence.Unary, E_TTT);
|
1987 |
|
1988 | if (space === '') {
|
1989 | result = join(expr.operator, fragment);
|
1990 | } else {
|
1991 | result = [expr.operator];
|
1992 | if (expr.operator.length > 2) {
|
1993 |
|
1994 |
|
1995 | result = join(result, fragment);
|
1996 | } else {
|
1997 |
|
1998 |
|
1999 | leftSource = toSourceNodeWhenNeeded(result).toString();
|
2000 | leftCharCode = leftSource.charCodeAt(leftSource.length - 1);
|
2001 | rightCharCode = fragment.toString().charCodeAt(0);
|
2002 |
|
2003 | if (((leftCharCode === 0x2B || leftCharCode === 0x2D ) && leftCharCode === rightCharCode) ||
|
2004 | (esutils.code.isIdentifierPartES5(leftCharCode) && esutils.code.isIdentifierPartES5(rightCharCode))) {
|
2005 | result.push(noEmptySpace());
|
2006 | result.push(fragment);
|
2007 | } else {
|
2008 | result.push(fragment);
|
2009 | }
|
2010 | }
|
2011 | }
|
2012 | return parenthesize(result, Precedence.Unary, precedence);
|
2013 | },
|
2014 |
|
2015 | YieldExpression: function (expr, precedence, flags) {
|
2016 | var result;
|
2017 | if (expr.delegate) {
|
2018 | result = 'yield*';
|
2019 | } else {
|
2020 | result = 'yield';
|
2021 | }
|
2022 | if (expr.argument) {
|
2023 | result = join(
|
2024 | result,
|
2025 | this.generateExpression(expr.argument, Precedence.Yield, E_TTT)
|
2026 | );
|
2027 | }
|
2028 | return parenthesize(result, Precedence.Yield, precedence);
|
2029 | },
|
2030 |
|
2031 | AwaitExpression: function (expr, precedence, flags) {
|
2032 | var result = join(
|
2033 | expr.all ? 'await*' : 'await',
|
2034 | this.generateExpression(expr.argument, Precedence.Await, E_TTT)
|
2035 | );
|
2036 | return parenthesize(result, Precedence.Await, precedence);
|
2037 | },
|
2038 |
|
2039 | UpdateExpression: function (expr, precedence, flags) {
|
2040 | if (expr.prefix) {
|
2041 | return parenthesize(
|
2042 | [
|
2043 | expr.operator,
|
2044 | this.generateExpression(expr.argument, Precedence.Unary, E_TTT)
|
2045 | ],
|
2046 | Precedence.Unary,
|
2047 | precedence
|
2048 | );
|
2049 | }
|
2050 | return parenthesize(
|
2051 | [
|
2052 | this.generateExpression(expr.argument, Precedence.Postfix, E_TTT),
|
2053 | expr.operator
|
2054 | ],
|
2055 | Precedence.Postfix,
|
2056 | precedence
|
2057 | );
|
2058 | },
|
2059 |
|
2060 | FunctionExpression: function (expr, precedence, flags) {
|
2061 | var result = [
|
2062 | generateAsyncPrefix(expr, true),
|
2063 | 'function'
|
2064 | ];
|
2065 | if (expr.id) {
|
2066 | result.push(generateStarSuffix(expr) || noEmptySpace());
|
2067 | result.push(generateIdentifier(expr.id));
|
2068 | } else {
|
2069 | result.push(generateStarSuffix(expr) || space);
|
2070 | }
|
2071 | result.push(this.generateFunctionBody(expr));
|
2072 | return result;
|
2073 | },
|
2074 |
|
2075 | ArrayPattern: function (expr, precedence, flags) {
|
2076 | return this.ArrayExpression(expr, precedence, flags, true);
|
2077 | },
|
2078 |
|
2079 | ArrayExpression: function (expr, precedence, flags, isPattern) {
|
2080 | var result, multiline, that = this;
|
2081 | if (!expr.elements.length) {
|
2082 | return '[]';
|
2083 | }
|
2084 | multiline = isPattern ? false : expr.elements.length > 1;
|
2085 | result = ['[', multiline ? newline : ''];
|
2086 | withIndent(function (indent) {
|
2087 | var i, iz;
|
2088 | for (i = 0, iz = expr.elements.length; i < iz; ++i) {
|
2089 | if (!expr.elements[i]) {
|
2090 | if (multiline) {
|
2091 | result.push(indent);
|
2092 | }
|
2093 | if (i + 1 === iz) {
|
2094 | result.push(',');
|
2095 | }
|
2096 | } else {
|
2097 | result.push(multiline ? indent : '');
|
2098 | result.push(that.generateExpression(expr.elements[i], Precedence.Assignment, E_TTT));
|
2099 | }
|
2100 | if (i + 1 < iz) {
|
2101 | result.push(',' + (multiline ? newline : space));
|
2102 | }
|
2103 | }
|
2104 | });
|
2105 | if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
2106 | result.push(newline);
|
2107 | }
|
2108 | result.push(multiline ? base : '');
|
2109 | result.push(']');
|
2110 | return result;
|
2111 | },
|
2112 |
|
2113 | RestElement: function(expr, precedence, flags) {
|
2114 | return '...' + this.generatePattern(expr.argument);
|
2115 | },
|
2116 |
|
2117 | ClassExpression: function (expr, precedence, flags) {
|
2118 | var result, fragment;
|
2119 | result = ['class'];
|
2120 | if (expr.id) {
|
2121 | result = join(result, this.generateExpression(expr.id, Precedence.Sequence, E_TTT));
|
2122 | }
|
2123 | if (expr.superClass) {
|
2124 | fragment = join('extends', this.generateExpression(expr.superClass, Precedence.Unary, E_TTT));
|
2125 | result = join(result, fragment);
|
2126 | }
|
2127 | result.push(space);
|
2128 | result.push(this.generateStatement(expr.body, S_TFFT));
|
2129 | return result;
|
2130 | },
|
2131 |
|
2132 | MethodDefinition: function (expr, precedence, flags) {
|
2133 | var result, fragment;
|
2134 | if (expr['static']) {
|
2135 | result = ['static' + space];
|
2136 | } else {
|
2137 | result = [];
|
2138 | }
|
2139 | if (expr.kind === 'get' || expr.kind === 'set') {
|
2140 | fragment = [
|
2141 | join(expr.kind, this.generatePropertyKey(expr.key, expr.computed)),
|
2142 | this.generateFunctionBody(expr.value)
|
2143 | ];
|
2144 | } else {
|
2145 | fragment = [
|
2146 | generateMethodPrefix(expr),
|
2147 | this.generatePropertyKey(expr.key, expr.computed),
|
2148 | this.generateFunctionBody(expr.value)
|
2149 | ];
|
2150 | }
|
2151 | return join(result, fragment);
|
2152 | },
|
2153 |
|
2154 | Property: function (expr, precedence, flags) {
|
2155 | if (expr.kind === 'get' || expr.kind === 'set') {
|
2156 | return [
|
2157 | expr.kind, noEmptySpace(),
|
2158 | this.generatePropertyKey(expr.key, expr.computed),
|
2159 | this.generateFunctionBody(expr.value)
|
2160 | ];
|
2161 | }
|
2162 |
|
2163 | if (expr.shorthand) {
|
2164 | if (expr.value.type === "AssignmentPattern") {
|
2165 | return this.AssignmentPattern(expr.value, Precedence.Sequence, E_TTT);
|
2166 | }
|
2167 | return this.generatePropertyKey(expr.key, expr.computed);
|
2168 | }
|
2169 |
|
2170 | if (expr.method) {
|
2171 | return [
|
2172 | generateMethodPrefix(expr),
|
2173 | this.generatePropertyKey(expr.key, expr.computed),
|
2174 | this.generateFunctionBody(expr.value)
|
2175 | ];
|
2176 | }
|
2177 |
|
2178 | return [
|
2179 | this.generatePropertyKey(expr.key, expr.computed),
|
2180 | ':' + space,
|
2181 | this.generateExpression(expr.value, Precedence.Assignment, E_TTT)
|
2182 | ];
|
2183 | },
|
2184 |
|
2185 | ObjectExpression: function (expr, precedence, flags) {
|
2186 | var multiline, result, fragment, that = this;
|
2187 |
|
2188 | if (!expr.properties.length) {
|
2189 | return '{}';
|
2190 | }
|
2191 | multiline = expr.properties.length > 1;
|
2192 |
|
2193 | withIndent(function () {
|
2194 | fragment = that.generateExpression(expr.properties[0], Precedence.Sequence, E_TTT);
|
2195 | });
|
2196 |
|
2197 | if (!multiline) {
|
2198 |
|
2199 |
|
2200 |
|
2201 |
|
2202 |
|
2203 |
|
2204 |
|
2205 |
|
2206 | if (!hasLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
|
2207 | return [ '{', space, fragment, space, '}' ];
|
2208 | }
|
2209 | }
|
2210 |
|
2211 | withIndent(function (indent) {
|
2212 | var i, iz;
|
2213 | result = [ '{', newline, indent, fragment ];
|
2214 |
|
2215 | if (multiline) {
|
2216 | result.push(',' + newline);
|
2217 | for (i = 1, iz = expr.properties.length; i < iz; ++i) {
|
2218 | result.push(indent);
|
2219 | result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT));
|
2220 | if (i + 1 < iz) {
|
2221 | result.push(',' + newline);
|
2222 | }
|
2223 | }
|
2224 | }
|
2225 | });
|
2226 |
|
2227 | if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
2228 | result.push(newline);
|
2229 | }
|
2230 | result.push(base);
|
2231 | result.push('}');
|
2232 | return result;
|
2233 | },
|
2234 |
|
2235 | AssignmentPattern: function(expr, precedence, flags) {
|
2236 | return this.generateAssignment(expr.left, expr.right, '=', precedence, flags);
|
2237 | },
|
2238 |
|
2239 | ObjectPattern: function (expr, precedence, flags) {
|
2240 | var result, i, iz, multiline, property, that = this;
|
2241 | if (!expr.properties.length) {
|
2242 | return '{}';
|
2243 | }
|
2244 |
|
2245 | multiline = false;
|
2246 | if (expr.properties.length === 1) {
|
2247 | property = expr.properties[0];
|
2248 | if (
|
2249 | property.type === Syntax.Property
|
2250 | && property.value.type !== Syntax.Identifier
|
2251 | ) {
|
2252 | multiline = true;
|
2253 | }
|
2254 | } else {
|
2255 | for (i = 0, iz = expr.properties.length; i < iz; ++i) {
|
2256 | property = expr.properties[i];
|
2257 | if (
|
2258 | property.type === Syntax.Property
|
2259 | && !property.shorthand
|
2260 | ) {
|
2261 | multiline = true;
|
2262 | break;
|
2263 | }
|
2264 | }
|
2265 | }
|
2266 | result = ['{', multiline ? newline : '' ];
|
2267 |
|
2268 | withIndent(function (indent) {
|
2269 | var i, iz;
|
2270 | for (i = 0, iz = expr.properties.length; i < iz; ++i) {
|
2271 | result.push(multiline ? indent : '');
|
2272 | result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT));
|
2273 | if (i + 1 < iz) {
|
2274 | result.push(',' + (multiline ? newline : space));
|
2275 | }
|
2276 | }
|
2277 | });
|
2278 |
|
2279 | if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
|
2280 | result.push(newline);
|
2281 | }
|
2282 | result.push(multiline ? base : '');
|
2283 | result.push('}');
|
2284 | return result;
|
2285 | },
|
2286 |
|
2287 | ThisExpression: function (expr, precedence, flags) {
|
2288 | return 'this';
|
2289 | },
|
2290 |
|
2291 | Super: function (expr, precedence, flags) {
|
2292 | return 'super';
|
2293 | },
|
2294 |
|
2295 | Identifier: function (expr, precedence, flags) {
|
2296 | return generateIdentifier(expr);
|
2297 | },
|
2298 |
|
2299 | ImportDefaultSpecifier: function (expr, precedence, flags) {
|
2300 | return generateIdentifier(expr.id || expr.local);
|
2301 | },
|
2302 |
|
2303 | ImportNamespaceSpecifier: function (expr, precedence, flags) {
|
2304 | var result = ['*'];
|
2305 | var id = expr.id || expr.local;
|
2306 | if (id) {
|
2307 | result.push(space + 'as' + noEmptySpace() + generateIdentifier(id));
|
2308 | }
|
2309 | return result;
|
2310 | },
|
2311 |
|
2312 | ImportSpecifier: function (expr, precedence, flags) {
|
2313 | var imported = expr.imported;
|
2314 | var result = [ imported.name ];
|
2315 | var local = expr.local;
|
2316 | if (local && local.name !== imported.name) {
|
2317 | result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(local));
|
2318 | }
|
2319 | return result;
|
2320 | },
|
2321 |
|
2322 | ExportSpecifier: function (expr, precedence, flags) {
|
2323 | var local = expr.local;
|
2324 | var result = [ local.name ];
|
2325 | var exported = expr.exported;
|
2326 | if (exported && exported.name !== local.name) {
|
2327 | result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(exported));
|
2328 | }
|
2329 | return result;
|
2330 | },
|
2331 |
|
2332 | Literal: function (expr, precedence, flags) {
|
2333 | var raw;
|
2334 | if (expr.hasOwnProperty('raw') && parse && extra.raw) {
|
2335 | try {
|
2336 | raw = parse(expr.raw).body[0].expression;
|
2337 | if (raw.type === Syntax.Literal) {
|
2338 | if (raw.value === expr.value) {
|
2339 | return expr.raw;
|
2340 | }
|
2341 | }
|
2342 | } catch (e) {
|
2343 |
|
2344 | }
|
2345 | }
|
2346 |
|
2347 | if (expr.regex) {
|
2348 | return '/' + expr.regex.pattern + '/' + expr.regex.flags;
|
2349 | }
|
2350 |
|
2351 | if (expr.value === null) {
|
2352 | return 'null';
|
2353 | }
|
2354 |
|
2355 | if (typeof expr.value === 'string') {
|
2356 | return escapeString(expr.value);
|
2357 | }
|
2358 |
|
2359 | if (typeof expr.value === 'number') {
|
2360 | return generateNumber(expr.value);
|
2361 | }
|
2362 |
|
2363 | if (typeof expr.value === 'boolean') {
|
2364 | return expr.value ? 'true' : 'false';
|
2365 | }
|
2366 |
|
2367 | return generateRegExp(expr.value);
|
2368 | },
|
2369 |
|
2370 | GeneratorExpression: function (expr, precedence, flags) {
|
2371 | return this.ComprehensionExpression(expr, precedence, flags);
|
2372 | },
|
2373 |
|
2374 | ComprehensionExpression: function (expr, precedence, flags) {
|
2375 |
|
2376 |
|
2377 |
|
2378 | var result, i, iz, fragment, that = this;
|
2379 | result = (expr.type === Syntax.GeneratorExpression) ? ['('] : ['['];
|
2380 |
|
2381 | if (extra.moz.comprehensionExpressionStartsWithAssignment) {
|
2382 | fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT);
|
2383 | result.push(fragment);
|
2384 | }
|
2385 |
|
2386 | if (expr.blocks) {
|
2387 | withIndent(function () {
|
2388 | for (i = 0, iz = expr.blocks.length; i < iz; ++i) {
|
2389 | fragment = that.generateExpression(expr.blocks[i], Precedence.Sequence, E_TTT);
|
2390 | if (i > 0 || extra.moz.comprehensionExpressionStartsWithAssignment) {
|
2391 | result = join(result, fragment);
|
2392 | } else {
|
2393 | result.push(fragment);
|
2394 | }
|
2395 | }
|
2396 | });
|
2397 | }
|
2398 |
|
2399 | if (expr.filter) {
|
2400 | result = join(result, 'if' + space);
|
2401 | fragment = this.generateExpression(expr.filter, Precedence.Sequence, E_TTT);
|
2402 | result = join(result, [ '(', fragment, ')' ]);
|
2403 | }
|
2404 |
|
2405 | if (!extra.moz.comprehensionExpressionStartsWithAssignment) {
|
2406 | fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT);
|
2407 |
|
2408 | result = join(result, fragment);
|
2409 | }
|
2410 |
|
2411 | result.push((expr.type === Syntax.GeneratorExpression) ? ')' : ']');
|
2412 | return result;
|
2413 | },
|
2414 |
|
2415 | ComprehensionBlock: function (expr, precedence, flags) {
|
2416 | var fragment;
|
2417 | if (expr.left.type === Syntax.VariableDeclaration) {
|
2418 | fragment = [
|
2419 | expr.left.kind, noEmptySpace(),
|
2420 | this.generateStatement(expr.left.declarations[0], S_FFFF)
|
2421 | ];
|
2422 | } else {
|
2423 | fragment = this.generateExpression(expr.left, Precedence.Call, E_TTT);
|
2424 | }
|
2425 |
|
2426 | fragment = join(fragment, expr.of ? 'of' : 'in');
|
2427 | fragment = join(fragment, this.generateExpression(expr.right, Precedence.Sequence, E_TTT));
|
2428 |
|
2429 | return [ 'for' + space + '(', fragment, ')' ];
|
2430 | },
|
2431 |
|
2432 | SpreadElement: function (expr, precedence, flags) {
|
2433 | return [
|
2434 | '...',
|
2435 | this.generateExpression(expr.argument, Precedence.Assignment, E_TTT)
|
2436 | ];
|
2437 | },
|
2438 |
|
2439 | TaggedTemplateExpression: function (expr, precedence, flags) {
|
2440 | var itemFlags = E_TTF;
|
2441 | if (!(flags & F_ALLOW_CALL)) {
|
2442 | itemFlags = E_TFF;
|
2443 | }
|
2444 | var result = [
|
2445 | this.generateExpression(expr.tag, Precedence.Call, itemFlags),
|
2446 | this.generateExpression(expr.quasi, Precedence.Primary, E_FFT)
|
2447 | ];
|
2448 | return parenthesize(result, Precedence.TaggedTemplate, precedence);
|
2449 | },
|
2450 |
|
2451 | TemplateElement: function (expr, precedence, flags) {
|
2452 |
|
2453 |
|
2454 | return expr.value.raw;
|
2455 | },
|
2456 |
|
2457 | TemplateLiteral: function (expr, precedence, flags) {
|
2458 | var result, i, iz;
|
2459 | result = [ '`' ];
|
2460 | for (i = 0, iz = expr.quasis.length; i < iz; ++i) {
|
2461 | result.push(this.generateExpression(expr.quasis[i], Precedence.Primary, E_TTT));
|
2462 | if (i + 1 < iz) {
|
2463 | result.push('${' + space);
|
2464 | result.push(this.generateExpression(expr.expressions[i], Precedence.Sequence, E_TTT));
|
2465 | result.push(space + '}');
|
2466 | }
|
2467 | }
|
2468 | result.push('`');
|
2469 | return result;
|
2470 | },
|
2471 |
|
2472 | ModuleSpecifier: function (expr, precedence, flags) {
|
2473 | return this.Literal(expr, precedence, flags);
|
2474 | },
|
2475 |
|
2476 | ImportExpression: function(expr, precedence, flag) {
|
2477 | return parenthesize([
|
2478 | 'import(',
|
2479 | this.generateExpression(expr.source, Precedence.Assignment, E_TTT),
|
2480 | ')'
|
2481 | ], Precedence.Call, precedence);
|
2482 | }
|
2483 | };
|
2484 |
|
2485 | merge(CodeGenerator.prototype, CodeGenerator.Expression);
|
2486 |
|
2487 | CodeGenerator.prototype.generateExpression = function (expr, precedence, flags) {
|
2488 | var result, type;
|
2489 |
|
2490 | type = expr.type || Syntax.Property;
|
2491 |
|
2492 | if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) {
|
2493 | return generateVerbatim(expr, precedence);
|
2494 | }
|
2495 |
|
2496 | result = this[type](expr, precedence, flags);
|
2497 |
|
2498 |
|
2499 | if (extra.comment) {
|
2500 | result = addComments(expr, result);
|
2501 | }
|
2502 | return toSourceNodeWhenNeeded(result, expr);
|
2503 | };
|
2504 |
|
2505 | CodeGenerator.prototype.generateStatement = function (stmt, flags) {
|
2506 | var result,
|
2507 | fragment;
|
2508 |
|
2509 | result = this[stmt.type](stmt, flags);
|
2510 |
|
2511 |
|
2512 |
|
2513 | if (extra.comment) {
|
2514 | result = addComments(stmt, result);
|
2515 | }
|
2516 |
|
2517 | fragment = toSourceNodeWhenNeeded(result).toString();
|
2518 | if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\n') {
|
2519 | result = sourceMap ? toSourceNodeWhenNeeded(result).replaceRight(/\s+$/, '') : fragment.replace(/\s+$/, '');
|
2520 | }
|
2521 |
|
2522 | return toSourceNodeWhenNeeded(result, stmt);
|
2523 | };
|
2524 |
|
2525 | function generateInternal(node) {
|
2526 | var codegen;
|
2527 |
|
2528 | codegen = new CodeGenerator();
|
2529 | if (isStatement(node)) {
|
2530 | return codegen.generateStatement(node, S_TFFF);
|
2531 | }
|
2532 |
|
2533 | if (isExpression(node)) {
|
2534 | return codegen.generateExpression(node, Precedence.Sequence, E_TTT);
|
2535 | }
|
2536 |
|
2537 | throw new Error('Unknown node type: ' + node.type);
|
2538 | }
|
2539 |
|
2540 | function generate(node, options) {
|
2541 | var defaultOptions = getDefaultOptions(), result, pair;
|
2542 |
|
2543 | if (options != null) {
|
2544 |
|
2545 |
|
2546 |
|
2547 |
|
2548 |
|
2549 |
|
2550 | if (typeof options.indent === 'string') {
|
2551 | defaultOptions.format.indent.style = options.indent;
|
2552 | }
|
2553 | if (typeof options.base === 'number') {
|
2554 | defaultOptions.format.indent.base = options.base;
|
2555 | }
|
2556 | options = updateDeeply(defaultOptions, options);
|
2557 | indent = options.format.indent.style;
|
2558 | if (typeof options.base === 'string') {
|
2559 | base = options.base;
|
2560 | } else {
|
2561 | base = stringRepeat(indent, options.format.indent.base);
|
2562 | }
|
2563 | } else {
|
2564 | options = defaultOptions;
|
2565 | indent = options.format.indent.style;
|
2566 | base = stringRepeat(indent, options.format.indent.base);
|
2567 | }
|
2568 | json = options.format.json;
|
2569 | renumber = options.format.renumber;
|
2570 | hexadecimal = json ? false : options.format.hexadecimal;
|
2571 | quotes = json ? 'double' : options.format.quotes;
|
2572 | escapeless = options.format.escapeless;
|
2573 | newline = options.format.newline;
|
2574 | space = options.format.space;
|
2575 | if (options.format.compact) {
|
2576 | newline = space = indent = base = '';
|
2577 | }
|
2578 | parentheses = options.format.parentheses;
|
2579 | semicolons = options.format.semicolons;
|
2580 | safeConcatenation = options.format.safeConcatenation;
|
2581 | directive = options.directive;
|
2582 | parse = json ? null : options.parse;
|
2583 | sourceMap = options.sourceMap;
|
2584 | sourceCode = options.sourceCode;
|
2585 | preserveBlankLines = options.format.preserveBlankLines && sourceCode !== null;
|
2586 | extra = options;
|
2587 |
|
2588 | if (sourceMap) {
|
2589 | if (!exports.browser) {
|
2590 |
|
2591 |
|
2592 | SourceNode = require('source-map').SourceNode;
|
2593 | } else {
|
2594 | SourceNode = global.sourceMap.SourceNode;
|
2595 | }
|
2596 | }
|
2597 |
|
2598 | result = generateInternal(node);
|
2599 |
|
2600 | if (!sourceMap) {
|
2601 | pair = {code: result.toString(), map: null};
|
2602 | return options.sourceMapWithCode ? pair : pair.code;
|
2603 | }
|
2604 |
|
2605 |
|
2606 | pair = result.toStringWithSourceMap({
|
2607 | file: options.file,
|
2608 | sourceRoot: options.sourceMapRoot
|
2609 | });
|
2610 |
|
2611 | if (options.sourceContent) {
|
2612 | pair.map.setSourceContent(options.sourceMap,
|
2613 | options.sourceContent);
|
2614 | }
|
2615 |
|
2616 | if (options.sourceMapWithCode) {
|
2617 | return pair;
|
2618 | }
|
2619 |
|
2620 | return pair.map.toString();
|
2621 | }
|
2622 |
|
2623 | FORMAT_MINIFY = {
|
2624 | indent: {
|
2625 | style: '',
|
2626 | base: 0
|
2627 | },
|
2628 | renumber: true,
|
2629 | hexadecimal: true,
|
2630 | quotes: 'auto',
|
2631 | escapeless: true,
|
2632 | compact: true,
|
2633 | parentheses: false,
|
2634 | semicolons: false
|
2635 | };
|
2636 |
|
2637 | FORMAT_DEFAULTS = getDefaultOptions().format;
|
2638 |
|
2639 | exports.version = require('./package.json').version;
|
2640 | exports.generate = generate;
|
2641 | exports.attachComments = estraverse.attachComments;
|
2642 | exports.Precedence = updateDeeply({}, Precedence);
|
2643 | exports.browser = false;
|
2644 | exports.FORMAT_MINIFY = FORMAT_MINIFY;
|
2645 | exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS;
|
2646 | }());
|
2647 |
|