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41 |
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42 |
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43 |
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44 | "use strict";
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45 |
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46 | function is_some_comments(comment) {
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47 |
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48 | return comment.type == "comment2" && /@preserve|@license|@cc_on/i.test(comment.value);
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49 | }
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50 |
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51 | function OutputStream(options) {
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52 | options = defaults(options, {
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53 | annotations : false,
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54 | ascii_only : false,
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55 | beautify : false,
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56 | braces : false,
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57 | comments : false,
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58 | galio : false,
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59 | ie : false,
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60 | indent_level : 4,
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61 | indent_start : 0,
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62 | inline_script : true,
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63 | keep_quoted_props: false,
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64 | max_line_len : false,
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65 | preamble : null,
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66 | preserve_line : false,
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67 | quote_keys : false,
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68 | quote_style : 0,
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69 | semicolons : true,
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70 | shebang : true,
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71 | source_map : null,
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72 | v8 : false,
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73 | webkit : false,
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74 | width : 80,
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75 | wrap_iife : false,
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76 | }, true);
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77 |
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78 |
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79 | var comment_filter = return_false;
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80 | if (options.comments) {
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81 | var comments = options.comments;
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82 | if (typeof options.comments === "string" && /^\/.*\/[a-zA-Z]*$/.test(options.comments)) {
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83 | var regex_pos = options.comments.lastIndexOf("/");
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84 | comments = new RegExp(
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85 | options.comments.substr(1, regex_pos - 1),
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86 | options.comments.substr(regex_pos + 1)
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87 | );
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88 | }
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89 | if (comments instanceof RegExp) {
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90 | comment_filter = function(comment) {
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91 | return comment.type != "comment5" && comments.test(comment.value);
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92 | };
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93 | } else if (typeof comments === "function") {
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94 | comment_filter = function(comment) {
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95 | return comment.type != "comment5" && comments(this, comment);
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96 | };
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97 | } else if (comments === "some") {
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98 | comment_filter = is_some_comments;
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99 | } else {
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100 | comment_filter = return_true;
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101 | }
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102 | }
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103 |
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104 | var current_col = 0;
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105 | var current_line = 1;
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106 | var current_pos = 0;
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107 | var indentation = options.indent_start;
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108 | var last;
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109 | var line_end = 0;
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110 | var line_fixed = true;
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111 | var mappings = options.source_map && [];
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112 | var mapping_name;
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113 | var mapping_token;
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114 | var might_need_space;
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115 | var might_need_semicolon;
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116 | var need_newline_indented = false;
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117 | var need_space = false;
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118 | var newline_insert = -1;
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119 | var stack;
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120 | var OUTPUT;
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121 |
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122 | function reset() {
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123 | last = "";
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124 | might_need_space = false;
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125 | might_need_semicolon = false;
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126 | stack = [];
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127 | var str = OUTPUT;
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128 | OUTPUT = "";
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129 | return str;
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130 | }
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131 |
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132 | reset();
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133 | var to_utf8 = options.ascii_only ? function(str, identifier) {
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134 | if (identifier) str = str.replace(/[\ud800-\udbff][\udc00-\udfff]/g, function(ch) {
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135 | return "\\u{" + (ch.charCodeAt(0) - 0xd7c0 << 10 | ch.charCodeAt(1) - 0xdc00).toString(16) + "}";
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136 | });
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137 | return str.replace(/[\u0000-\u001f\u007f-\uffff]/g, function(ch) {
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138 | var code = ch.charCodeAt(0).toString(16);
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139 | if (code.length <= 2 && !identifier) {
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140 | while (code.length < 2) code = "0" + code;
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141 | return "\\x" + code;
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142 | } else {
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143 | while (code.length < 4) code = "0" + code;
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144 | return "\\u" + code;
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145 | }
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146 | });
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147 | } : function(str) {
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148 | var s = "";
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149 | for (var i = 0, j = 0; i < str.length; i++) {
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150 | var code = str.charCodeAt(i);
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151 | if (is_surrogate_pair_head(code)) {
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152 | if (is_surrogate_pair_tail(str.charCodeAt(i + 1))) {
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153 | i++;
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154 | continue;
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155 | }
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156 | } else if (!is_surrogate_pair_tail(code)) {
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157 | continue;
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158 | }
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159 | s += str.slice(j, i) + "\\u" + code.toString(16);
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160 | j = i + 1;
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161 | }
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162 | return j == 0 ? str : s + str.slice(j);
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163 | };
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164 |
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165 | function quote_single(str) {
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166 | return "'" + str.replace(/\x27/g, "\\'") + "'";
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167 | }
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168 |
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169 | function quote_double(str) {
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170 | return '"' + str.replace(/\x22/g, '\\"') + '"';
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171 | }
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172 |
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173 | var quote_string = [
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174 | null,
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175 | quote_single,
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176 | quote_double,
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177 | function(str, quote) {
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178 | return quote == "'" ? quote_single(str) : quote_double(str);
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179 | },
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180 | ][options.quote_style] || function(str, quote, dq, sq) {
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181 | return dq > sq ? quote_single(str) : quote_double(str);
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182 | };
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183 |
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184 | function make_string(str, quote) {
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185 | var dq = 0, sq = 0;
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186 | str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g, function(s, i) {
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187 | switch (s) {
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188 | case '"': ++dq; return '"';
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189 | case "'": ++sq; return "'";
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190 | case "\\": return "\\\\";
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191 | case "\n": return "\\n";
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192 | case "\r": return "\\r";
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193 | case "\t": return "\\t";
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194 | case "\b": return "\\b";
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195 | case "\f": return "\\f";
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196 | case "\x0B": return options.ie ? "\\x0B" : "\\v";
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197 | case "\u2028": return "\\u2028";
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198 | case "\u2029": return "\\u2029";
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199 | case "\ufeff": return "\\ufeff";
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200 | case "\0":
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201 | return /[0-9]/.test(str.charAt(i+1)) ? "\\x00" : "\\0";
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202 | }
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203 | return s;
|
204 | });
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205 | return quote_string(to_utf8(str), quote, dq, sq);
|
206 | }
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207 |
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208 |
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209 |
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210 | var adjust_mappings = mappings ? function(line, col) {
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211 | mappings.forEach(function(mapping) {
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212 | mapping.line += line;
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213 | mapping.col += col;
|
214 | });
|
215 | } : noop;
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216 |
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217 | var flush_mappings = mappings ? function() {
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218 | mappings.forEach(function(mapping) {
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219 | options.source_map.add(
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220 | mapping.token.file,
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221 | mapping.line, mapping.col,
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222 | mapping.token.line, mapping.token.col,
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223 | !mapping.name && mapping.token.type == "name" ? mapping.token.value : mapping.name
|
224 | );
|
225 | });
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226 | mappings = [];
|
227 | } : noop;
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228 |
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229 | function insert_newlines(count) {
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230 | var index = OUTPUT.lastIndexOf("\n");
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231 | if (line_end < index) line_end = index;
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232 | var left = OUTPUT.slice(0, line_end);
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233 | var right = OUTPUT.slice(line_end);
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234 | adjust_mappings(count, right.length - current_col);
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235 | current_line += count;
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236 | current_pos += count;
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237 | current_col = right.length;
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238 | OUTPUT = left;
|
239 | while (count--) OUTPUT += "\n";
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240 | OUTPUT += right;
|
241 | }
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242 |
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243 | var fix_line = options.max_line_len ? function() {
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244 | if (line_fixed) {
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245 | if (current_col > options.max_line_len) {
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246 | AST_Node.warn("Output exceeds {max_line_len} characters", options);
|
247 | }
|
248 | return;
|
249 | }
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250 | if (current_col > options.max_line_len) insert_newlines(1);
|
251 | line_fixed = true;
|
252 | flush_mappings();
|
253 | } : noop;
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254 |
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255 | var requireSemicolonChars = makePredicate("( [ + * / - , .");
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256 |
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257 | var print = options.beautify
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258 | || options.comments
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259 | || options.max_line_len
|
260 | || options.preserve_line
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261 | || options.shebang
|
262 | || !options.semicolons
|
263 | || options.source_map
|
264 | || options.width ? function(str) {
|
265 | var ch = str.charAt(0);
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266 | if (need_newline_indented && ch) {
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267 | need_newline_indented = false;
|
268 | if (ch != "\n") {
|
269 | print("\n");
|
270 | indent();
|
271 | }
|
272 | }
|
273 | if (need_space && ch) {
|
274 | need_space = false;
|
275 | if (!/[\s;})]/.test(ch)) {
|
276 | space();
|
277 | }
|
278 | }
|
279 | newline_insert = -1;
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280 | var prev = last.slice(-1);
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281 | if (might_need_semicolon) {
|
282 | might_need_semicolon = false;
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283 |
|
284 | if (prev == ":" && ch == "}" || (!ch || ";}".indexOf(ch) < 0) && prev != ";") {
|
285 | if (options.semicolons || requireSemicolonChars[ch]) {
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286 | OUTPUT += ";";
|
287 | current_col++;
|
288 | current_pos++;
|
289 | } else {
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290 | fix_line();
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291 | OUTPUT += "\n";
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292 | current_pos++;
|
293 | current_line++;
|
294 | current_col = 0;
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295 |
|
296 | if (/^\s+$/.test(str)) {
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297 |
|
298 |
|
299 | might_need_semicolon = true;
|
300 | }
|
301 | }
|
302 |
|
303 | if (!options.beautify)
|
304 | might_need_space = false;
|
305 | }
|
306 | }
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307 |
|
308 | if (might_need_space) {
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309 | if (is_identifier_char(prev) && (is_identifier_char(ch) || ch == "\\")
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310 | || (ch == "/" && ch == prev)
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311 | || ((ch == "+" || ch == "-") && ch == last)
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312 | || str == "--" && last == "!"
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313 | || str == "in" && prev == "/"
|
314 | || last == "--" && ch == ">") {
|
315 | OUTPUT += " ";
|
316 | current_col++;
|
317 | current_pos++;
|
318 | }
|
319 | if (prev != "<" || str != "!") might_need_space = false;
|
320 | }
|
321 |
|
322 | if (mapping_token) {
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323 | mappings.push({
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324 | token: mapping_token,
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325 | name: mapping_name,
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326 | line: current_line,
|
327 | col: current_col
|
328 | });
|
329 | mapping_token = false;
|
330 | if (line_fixed) flush_mappings();
|
331 | }
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332 |
|
333 | OUTPUT += str;
|
334 | current_pos += str.length;
|
335 | var a = str.split(/\r?\n/), n = a.length - 1;
|
336 | current_line += n;
|
337 | current_col += a[0].length;
|
338 | if (n > 0) {
|
339 | fix_line();
|
340 | current_col = a[n].length;
|
341 | }
|
342 | last = str;
|
343 | } : function(str) {
|
344 | var ch = str.charAt(0);
|
345 | var prev = last.slice(-1);
|
346 | if (might_need_semicolon) {
|
347 | might_need_semicolon = false;
|
348 | if (prev == ":" && ch == "}" || (!ch || ";}".indexOf(ch) < 0) && prev != ";") {
|
349 | OUTPUT += ";";
|
350 | might_need_space = false;
|
351 | }
|
352 | }
|
353 | if (might_need_space) {
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354 | if (is_identifier_char(prev) && (is_identifier_char(ch) || ch == "\\")
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355 | || (ch == "/" && ch == prev)
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356 | || ((ch == "+" || ch == "-") && ch == last)
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357 | || str == "--" && last == "!"
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358 | || str == "in" && prev == "/"
|
359 | || last == "--" && ch == ">") {
|
360 | OUTPUT += " ";
|
361 | }
|
362 | if (prev != "<" || str != "!") might_need_space = false;
|
363 | }
|
364 | OUTPUT += str;
|
365 | last = str;
|
366 | };
|
367 |
|
368 | var space = options.beautify ? function() {
|
369 | print(" ");
|
370 | } : function() {
|
371 | might_need_space = true;
|
372 | };
|
373 |
|
374 | var indent = options.beautify ? function(half) {
|
375 | if (need_newline_indented) print("\n");
|
376 | print(repeat_string(" ", half ? indentation - (options.indent_level >> 1) : indentation));
|
377 | } : noop;
|
378 |
|
379 | var with_indent = options.beautify ? function(cont) {
|
380 | var save_indentation = indentation;
|
381 | indentation += options.indent_level;
|
382 | cont();
|
383 | indentation = save_indentation;
|
384 | } : function(cont) { cont() };
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385 |
|
386 | var may_add_newline = options.max_line_len || options.preserve_line ? function() {
|
387 | fix_line();
|
388 | line_end = OUTPUT.length;
|
389 | line_fixed = false;
|
390 | } : noop;
|
391 |
|
392 | var newline = options.beautify ? function() {
|
393 | if (newline_insert < 0) return print("\n");
|
394 | if (OUTPUT[newline_insert] != "\n") {
|
395 | OUTPUT = OUTPUT.slice(0, newline_insert) + "\n" + OUTPUT.slice(newline_insert);
|
396 | current_pos++;
|
397 | current_line++;
|
398 | }
|
399 | newline_insert++;
|
400 | } : may_add_newline;
|
401 |
|
402 | var semicolon = options.beautify ? function() {
|
403 | print(";");
|
404 | } : function() {
|
405 | might_need_semicolon = true;
|
406 | };
|
407 |
|
408 | function force_semicolon() {
|
409 | if (might_need_semicolon) print(";");
|
410 | print(";");
|
411 | }
|
412 |
|
413 | function with_block(cont) {
|
414 | print("{");
|
415 | newline();
|
416 | with_indent(cont);
|
417 | indent();
|
418 | print("}");
|
419 | }
|
420 |
|
421 | function with_parens(cont) {
|
422 | print("(");
|
423 | may_add_newline();
|
424 | cont();
|
425 | may_add_newline();
|
426 | print(")");
|
427 | }
|
428 |
|
429 | function with_square(cont) {
|
430 | print("[");
|
431 | may_add_newline();
|
432 | cont();
|
433 | may_add_newline();
|
434 | print("]");
|
435 | }
|
436 |
|
437 | function comma() {
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438 | may_add_newline();
|
439 | print(",");
|
440 | may_add_newline();
|
441 | space();
|
442 | }
|
443 |
|
444 | function colon() {
|
445 | print(":");
|
446 | space();
|
447 | }
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448 |
|
449 | var add_mapping = mappings ? function(token, name) {
|
450 | mapping_token = token;
|
451 | mapping_name = name;
|
452 | } : noop;
|
453 |
|
454 | function get() {
|
455 | if (!line_fixed) fix_line();
|
456 | return OUTPUT;
|
457 | }
|
458 |
|
459 | function has_nlb() {
|
460 | var index = OUTPUT.lastIndexOf("\n");
|
461 | return /^ *$/.test(OUTPUT.slice(index + 1));
|
462 | }
|
463 |
|
464 | function pad_comment(token, force) {
|
465 | if (need_newline_indented) return;
|
466 | if (token.nlb && (force || !has_nlb())) {
|
467 | need_newline_indented = true;
|
468 | } else if (force) {
|
469 | need_space = true;
|
470 | }
|
471 | }
|
472 |
|
473 | function print_comment(comment) {
|
474 | var value = comment.value.replace(/[@#]__PURE__/g, " ");
|
475 | if (/^\s*$/.test(value) && !/^\s*$/.test(comment.value)) return false;
|
476 | if (/comment[134]/.test(comment.type)) {
|
477 | print("//" + value);
|
478 | need_newline_indented = true;
|
479 | } else if (comment.type == "comment2") {
|
480 | print("/*" + value + "*/");
|
481 | }
|
482 | return true;
|
483 | }
|
484 |
|
485 | function should_merge_comments(node, parent) {
|
486 | if (parent instanceof AST_Binary) return parent.left === node;
|
487 | if (parent.TYPE == "Call") return parent.expression === node;
|
488 | if (parent instanceof AST_Conditional) return parent.condition === node;
|
489 | if (parent instanceof AST_Dot) return parent.expression === node;
|
490 | if (parent instanceof AST_Exit) return true;
|
491 | if (parent instanceof AST_Sequence) return parent.expressions[0] === node;
|
492 | if (parent instanceof AST_Sub) return parent.expression === node;
|
493 | if (parent instanceof AST_UnaryPostfix) return true;
|
494 | if (parent instanceof AST_Yield) return true;
|
495 | }
|
496 |
|
497 | function prepend_comments(node) {
|
498 | var self = this;
|
499 | var scan;
|
500 | if (node instanceof AST_Exit) {
|
501 | scan = node.value;
|
502 | } else if (node instanceof AST_Yield) {
|
503 | scan = node.expression;
|
504 | }
|
505 | var comments = dump(node);
|
506 | if (!comments) comments = [];
|
507 |
|
508 | if (scan) {
|
509 | var tw = new TreeWalker(function(node) {
|
510 | if (!should_merge_comments(node, tw.parent())) return true;
|
511 | var before = dump(node);
|
512 | if (before) comments = comments.concat(before);
|
513 | });
|
514 | tw.push(node);
|
515 | scan.walk(tw);
|
516 | }
|
517 |
|
518 | if (current_pos == 0) {
|
519 | if (comments.length > 0 && options.shebang && comments[0].type == "comment5") {
|
520 | print("#!" + comments.shift().value + "\n");
|
521 | indent();
|
522 | }
|
523 | var preamble = options.preamble;
|
524 | if (preamble) {
|
525 | print(preamble.replace(/\r\n?|[\n\u2028\u2029]|\s*$/g, "\n"));
|
526 | }
|
527 | }
|
528 |
|
529 | comments = comments.filter(comment_filter, node);
|
530 | var printed = false;
|
531 | comments.forEach(function(comment, index) {
|
532 | pad_comment(comment, index);
|
533 | if (print_comment(comment)) printed = true;
|
534 | });
|
535 | if (printed) pad_comment(node.start, true);
|
536 |
|
537 | function dump(node) {
|
538 | var token = node.start;
|
539 | if (!token) {
|
540 | if (!scan) return;
|
541 | node.start = token = new AST_Token();
|
542 | }
|
543 | var comments = token.comments_before;
|
544 | if (!comments) {
|
545 | if (!scan) return;
|
546 | token.comments_before = comments = [];
|
547 | }
|
548 | if (comments._dumped === self) return;
|
549 | comments._dumped = self;
|
550 | return comments;
|
551 | }
|
552 | }
|
553 |
|
554 | function append_comments(node, tail) {
|
555 | var self = this;
|
556 | var token = node.end;
|
557 | if (!token) return;
|
558 | var comments = token[tail ? "comments_before" : "comments_after"];
|
559 | if (!comments || comments._dumped === self) return;
|
560 | if (!(node instanceof AST_Statement || all(comments, function(c) {
|
561 | return !/comment[134]/.test(c.type);
|
562 | }))) return;
|
563 | comments._dumped = self;
|
564 | var insert = OUTPUT.length;
|
565 | comments.filter(comment_filter, node).forEach(function(comment, index) {
|
566 | pad_comment(comment, index || !tail);
|
567 | print_comment(comment);
|
568 | });
|
569 | if (OUTPUT.length > insert) newline_insert = insert;
|
570 | }
|
571 |
|
572 | return {
|
573 | get : get,
|
574 | reset : reset,
|
575 | indent : indent,
|
576 | should_break : options.width ? function() {
|
577 | return current_col - indentation >= options.width;
|
578 | } : return_false,
|
579 | has_parens : function() { return last.slice(-1) == "(" },
|
580 | newline : newline,
|
581 | print : print,
|
582 | space : space,
|
583 | comma : comma,
|
584 | colon : colon,
|
585 | last : function() { return last },
|
586 | semicolon : semicolon,
|
587 | force_semicolon : force_semicolon,
|
588 | to_utf8 : to_utf8,
|
589 | print_name : function(name) { print(to_utf8(name.toString(), true)) },
|
590 | print_string : options.inline_script ? function(str, quote) {
|
591 | str = make_string(str, quote).replace(/<\x2f(script)([>\/\t\n\f\r ])/gi, "<\\/$1$2");
|
592 | print(str.replace(/\x3c!--/g, "\\x3c!--").replace(/--\x3e/g, "--\\x3e"));
|
593 | } : function(str, quote) {
|
594 | print(make_string(str, quote));
|
595 | },
|
596 | with_indent : with_indent,
|
597 | with_block : with_block,
|
598 | with_parens : with_parens,
|
599 | with_square : with_square,
|
600 | add_mapping : add_mapping,
|
601 | option : function(opt) { return options[opt] },
|
602 | prepend_comments: options.comments || options.shebang ? prepend_comments : noop,
|
603 | append_comments : options.comments ? append_comments : noop,
|
604 | push_node : function(node) { stack.push(node) },
|
605 | pop_node : options.preserve_line ? function() {
|
606 | var node = stack.pop();
|
607 | if (node.start && node.start.line > current_line) {
|
608 | insert_newlines(node.start.line - current_line);
|
609 | }
|
610 | } : function() {
|
611 | stack.pop();
|
612 | },
|
613 | parent : function(n) {
|
614 | return stack[stack.length - 2 - (n || 0)];
|
615 | },
|
616 | };
|
617 | }
|
618 |
|
619 |
|
620 |
|
621 | (function() {
|
622 |
|
623 |
|
624 |
|
625 | function DEFPRINT(nodetype, generator) {
|
626 | nodetype.DEFMETHOD("_codegen", generator);
|
627 | }
|
628 |
|
629 | var use_asm = false;
|
630 |
|
631 | AST_Node.DEFMETHOD("print", function(stream, force_parens) {
|
632 | var self = this;
|
633 | stream.push_node(self);
|
634 | if (force_parens || self.needs_parens(stream)) {
|
635 | stream.with_parens(doit);
|
636 | } else {
|
637 | doit();
|
638 | }
|
639 | stream.pop_node();
|
640 |
|
641 | function doit() {
|
642 | stream.prepend_comments(self);
|
643 | self.add_source_map(stream);
|
644 | self._codegen(stream);
|
645 | stream.append_comments(self);
|
646 | }
|
647 | });
|
648 | var readonly = OutputStream({
|
649 | inline_script: false,
|
650 | shebang: false,
|
651 | width: false,
|
652 | });
|
653 | AST_Node.DEFMETHOD("print_to_string", function(options) {
|
654 | if (options) {
|
655 | var stream = OutputStream(options);
|
656 | this.print(stream);
|
657 | return stream.get();
|
658 | }
|
659 | this.print(readonly);
|
660 | return readonly.reset();
|
661 | });
|
662 |
|
663 |
|
664 |
|
665 | function PARENS(nodetype, func) {
|
666 | nodetype.DEFMETHOD("needs_parens", func);
|
667 | }
|
668 |
|
669 | PARENS(AST_Node, return_false);
|
670 |
|
671 |
|
672 |
|
673 | function needs_parens_function(output) {
|
674 | var p = output.parent();
|
675 | if (!output.has_parens() && first_in_statement(output, false, true)) {
|
676 |
|
677 |
|
678 |
|
679 |
|
680 |
|
681 | return this.name || !(p instanceof AST_ExportDefault);
|
682 | }
|
683 | if (output.option("webkit") && p instanceof AST_PropAccess && p.expression === this) return true;
|
684 | if (output.option("wrap_iife") && p instanceof AST_Call && p.expression === this) return true;
|
685 | }
|
686 | PARENS(AST_AsyncFunction, needs_parens_function);
|
687 | PARENS(AST_AsyncGeneratorFunction, needs_parens_function);
|
688 | PARENS(AST_ClassExpression, needs_parens_function);
|
689 | PARENS(AST_Function, needs_parens_function);
|
690 | PARENS(AST_GeneratorFunction, needs_parens_function);
|
691 |
|
692 |
|
693 |
|
694 | function needs_parens_obj(output) {
|
695 | return !output.has_parens() && first_in_statement(output, true);
|
696 | }
|
697 | PARENS(AST_Object, needs_parens_obj);
|
698 |
|
699 | function needs_parens_unary(output) {
|
700 | var p = output.parent();
|
701 |
|
702 | if (p instanceof AST_Binary) return p.operator == "**" && p.left === this;
|
703 |
|
704 |
|
705 | if (p instanceof AST_Call) return p.expression === this;
|
706 |
|
707 |
|
708 | if (p instanceof AST_Class) return true;
|
709 |
|
710 |
|
711 | if (p instanceof AST_PropAccess) return p.expression === this;
|
712 |
|
713 | if (p instanceof AST_Template) return p.tag === this;
|
714 | }
|
715 | PARENS(AST_Await, needs_parens_unary);
|
716 | PARENS(AST_Unary, needs_parens_unary);
|
717 |
|
718 | PARENS(AST_Sequence, function(output) {
|
719 | var p = output.parent();
|
720 |
|
721 | return p instanceof AST_Array
|
722 |
|
723 | || is_arrow(p) && p.value === this
|
724 |
|
725 | || p instanceof AST_Await
|
726 |
|
727 | || p instanceof AST_Binary
|
728 |
|
729 | || p instanceof AST_Call
|
730 |
|
731 |
|
732 | || p instanceof AST_Class
|
733 |
|
734 |
|
735 | || p instanceof AST_ClassProperty
|
736 |
|
737 |
|
738 | || p instanceof AST_Conditional
|
739 |
|
740 | || p instanceof AST_DefaultValue
|
741 |
|
742 |
|
743 | || p instanceof AST_DestructuredKeyVal
|
744 |
|
745 | || p instanceof AST_ExportDefault
|
746 |
|
747 | || p instanceof AST_ForOf
|
748 |
|
749 |
|
750 | || p instanceof AST_ObjectProperty
|
751 |
|
752 | || p instanceof AST_PropAccess && p.expression === this
|
753 |
|
754 | || p instanceof AST_Spread
|
755 |
|
756 | || p instanceof AST_Template && p.tag === this
|
757 |
|
758 | || p instanceof AST_Unary
|
759 |
|
760 | || p instanceof AST_VarDef
|
761 |
|
762 | || p instanceof AST_Yield;
|
763 | });
|
764 |
|
765 | PARENS(AST_Binary, function(output) {
|
766 | var p = output.parent();
|
767 |
|
768 | if (p instanceof AST_Await) return true;
|
769 |
|
770 |
|
771 |
|
772 |
|
773 | if (p instanceof AST_Binary) {
|
774 | var po = p.operator, pp = PRECEDENCE[po];
|
775 | var so = this.operator, sp = PRECEDENCE[so];
|
776 | return pp > sp
|
777 | || po == "??" && (so == "&&" || so == "||")
|
778 | || (pp == sp && this === p[po == "**" ? "left" : "right"]);
|
779 | }
|
780 |
|
781 | if (p instanceof AST_Call) return p.expression === this;
|
782 |
|
783 |
|
784 | if (p instanceof AST_Class) return true;
|
785 |
|
786 | if (p instanceof AST_PropAccess) return p.expression === this;
|
787 |
|
788 | if (p instanceof AST_Template) return p.tag === this;
|
789 |
|
790 | if (p instanceof AST_Unary) return true;
|
791 | });
|
792 |
|
793 | function need_chain_parens(node, parent) {
|
794 | if (!node.terminal) return false;
|
795 | if (!(parent instanceof AST_Call || parent instanceof AST_PropAccess)) return false;
|
796 | return parent.expression === node;
|
797 | }
|
798 |
|
799 | PARENS(AST_PropAccess, function(output) {
|
800 | var node = this;
|
801 | var p = output.parent();
|
802 |
|
803 |
|
804 |
|
805 |
|
806 |
|
807 |
|
808 | if (p instanceof AST_New && p.expression === node && root_expr(node).TYPE == "Call") return true;
|
809 |
|
810 |
|
811 |
|
812 | return need_chain_parens(node, p);
|
813 | });
|
814 |
|
815 | PARENS(AST_Call, function(output) {
|
816 | var node = this;
|
817 | var p = output.parent();
|
818 | if (p instanceof AST_New) return p.expression === node;
|
819 |
|
820 | if (output.option("webkit")
|
821 | && node.expression instanceof AST_Function
|
822 | && p instanceof AST_PropAccess
|
823 | && p.expression === node) {
|
824 | var g = output.parent(1);
|
825 | if (g instanceof AST_Assign && g.left === p) return true;
|
826 | }
|
827 |
|
828 |
|
829 |
|
830 | return need_chain_parens(node, p);
|
831 | });
|
832 |
|
833 | PARENS(AST_New, function(output) {
|
834 | if (need_constructor_parens(this, output)) return false;
|
835 | var p = output.parent();
|
836 |
|
837 | if (p instanceof AST_Call) return p.expression === this;
|
838 |
|
839 | if (p instanceof AST_PropAccess) return true;
|
840 |
|
841 | if (p instanceof AST_Template) return p.tag === this;
|
842 | });
|
843 |
|
844 | PARENS(AST_Number, function(output) {
|
845 | if (!output.option("galio")) return false;
|
846 |
|
847 | var p = output.parent();
|
848 | return p instanceof AST_PropAccess && p.expression === this && /^0/.test(make_num(this.value));
|
849 | });
|
850 |
|
851 | function needs_parens_assign_cond(self, output) {
|
852 | var p = output.parent();
|
853 |
|
854 | if (p instanceof AST_Await) return true;
|
855 |
|
856 | if (p instanceof AST_Binary) return !(p instanceof AST_Assign);
|
857 |
|
858 | if (p instanceof AST_Call) return p.expression === self;
|
859 |
|
860 |
|
861 | if (p instanceof AST_Class) return true;
|
862 |
|
863 | if (p instanceof AST_Conditional) return p.condition === self;
|
864 |
|
865 | if (p instanceof AST_PropAccess) return p.expression === self;
|
866 |
|
867 | if (p instanceof AST_Template) return p.tag === self;
|
868 |
|
869 | if (p instanceof AST_Unary) return true;
|
870 | }
|
871 | PARENS(AST_Arrow, function(output) {
|
872 | return needs_parens_assign_cond(this, output);
|
873 | });
|
874 | PARENS(AST_Assign, function(output) {
|
875 | if (needs_parens_assign_cond(this, output)) return true;
|
876 |
|
877 |
|
878 | if (output.option("v8")) return this.left instanceof AST_Destructured;
|
879 |
|
880 | if (this.left instanceof AST_DestructuredObject) return needs_parens_obj(output);
|
881 | });
|
882 | PARENS(AST_AsyncArrow, function(output) {
|
883 | return needs_parens_assign_cond(this, output);
|
884 | });
|
885 | PARENS(AST_Conditional, function(output) {
|
886 | return needs_parens_assign_cond(this, output);
|
887 | });
|
888 | PARENS(AST_Yield, function(output) {
|
889 | return needs_parens_assign_cond(this, output);
|
890 | });
|
891 |
|
892 |
|
893 |
|
894 | DEFPRINT(AST_Directive, function(output) {
|
895 | var quote = this.quote;
|
896 | var value = this.value;
|
897 | switch (output.option("quote_style")) {
|
898 | case 0:
|
899 | case 2:
|
900 | if (value.indexOf('"') == -1) quote = '"';
|
901 | break;
|
902 | case 1:
|
903 | if (value.indexOf("'") == -1) quote = "'";
|
904 | break;
|
905 | }
|
906 | output.print(quote + value + quote);
|
907 | output.semicolon();
|
908 | });
|
909 | DEFPRINT(AST_Debugger, function(output) {
|
910 | output.print("debugger");
|
911 | output.semicolon();
|
912 | });
|
913 |
|
914 |
|
915 |
|
916 | function display_body(body, is_toplevel, output, allow_directives) {
|
917 | var last = body.length - 1;
|
918 | var in_directive = allow_directives;
|
919 | var was_asm = use_asm;
|
920 | body.forEach(function(stmt, i) {
|
921 | if (in_directive) {
|
922 | if (stmt instanceof AST_Directive) {
|
923 | if (stmt.value == "use asm") use_asm = true;
|
924 | } else if (!(stmt instanceof AST_EmptyStatement)) {
|
925 | if (stmt instanceof AST_SimpleStatement && stmt.body instanceof AST_String) {
|
926 | output.force_semicolon();
|
927 | }
|
928 | in_directive = false;
|
929 | }
|
930 | }
|
931 | if (stmt instanceof AST_EmptyStatement) return;
|
932 | output.indent();
|
933 | stmt.print(output);
|
934 | if (i == last && is_toplevel) return;
|
935 | output.newline();
|
936 | if (is_toplevel) output.newline();
|
937 | });
|
938 | use_asm = was_asm;
|
939 | }
|
940 |
|
941 | DEFPRINT(AST_Toplevel, function(output) {
|
942 | display_body(this.body, true, output, true);
|
943 | output.print("");
|
944 | });
|
945 | DEFPRINT(AST_LabeledStatement, function(output) {
|
946 | this.label.print(output);
|
947 | output.colon();
|
948 | this.body.print(output);
|
949 | });
|
950 | DEFPRINT(AST_SimpleStatement, function(output) {
|
951 | this.body.print(output);
|
952 | output.semicolon();
|
953 | });
|
954 | function print_braced_empty(self, output) {
|
955 | output.print("{");
|
956 | output.with_indent(function() {
|
957 | output.append_comments(self, true);
|
958 | });
|
959 | output.print("}");
|
960 | }
|
961 | function print_braced(self, output, allow_directives) {
|
962 | if (self.body.length > 0) {
|
963 | output.with_block(function() {
|
964 | display_body(self.body, false, output, allow_directives);
|
965 | });
|
966 | } else print_braced_empty(self, output);
|
967 | }
|
968 | DEFPRINT(AST_BlockStatement, function(output) {
|
969 | print_braced(this, output);
|
970 | });
|
971 | DEFPRINT(AST_EmptyStatement, function(output) {
|
972 | output.semicolon();
|
973 | });
|
974 | DEFPRINT(AST_Do, function(output) {
|
975 | var self = this;
|
976 | output.print("do");
|
977 | make_block(self.body, output);
|
978 | output.space();
|
979 | output.print("while");
|
980 | output.space();
|
981 | output.with_parens(function() {
|
982 | self.condition.print(output);
|
983 | });
|
984 | output.semicolon();
|
985 | });
|
986 | DEFPRINT(AST_While, function(output) {
|
987 | var self = this;
|
988 | output.print("while");
|
989 | output.space();
|
990 | output.with_parens(function() {
|
991 | self.condition.print(output);
|
992 | });
|
993 | force_statement(self.body, output);
|
994 | });
|
995 | DEFPRINT(AST_For, function(output) {
|
996 | var self = this;
|
997 | output.print("for");
|
998 | output.space();
|
999 | output.with_parens(function() {
|
1000 | if (self.init) {
|
1001 | if (self.init instanceof AST_Definitions) {
|
1002 | self.init.print(output);
|
1003 | } else {
|
1004 | parenthesize_for_noin(self.init, output, true);
|
1005 | }
|
1006 | output.print(";");
|
1007 | output.space();
|
1008 | } else {
|
1009 | output.print(";");
|
1010 | }
|
1011 | if (self.condition) {
|
1012 | self.condition.print(output);
|
1013 | output.print(";");
|
1014 | output.space();
|
1015 | } else {
|
1016 | output.print(";");
|
1017 | }
|
1018 | if (self.step) {
|
1019 | self.step.print(output);
|
1020 | }
|
1021 | });
|
1022 | force_statement(self.body, output);
|
1023 | });
|
1024 | function print_for_enum(prefix, infix) {
|
1025 | return function(output) {
|
1026 | var self = this;
|
1027 | output.print(prefix);
|
1028 | output.space();
|
1029 | output.with_parens(function() {
|
1030 | self.init.print(output);
|
1031 | output.space();
|
1032 | output.print(infix);
|
1033 | output.space();
|
1034 | self.object.print(output);
|
1035 | });
|
1036 | force_statement(self.body, output);
|
1037 | };
|
1038 | }
|
1039 | DEFPRINT(AST_ForAwaitOf, print_for_enum("for await", "of"));
|
1040 | DEFPRINT(AST_ForIn, print_for_enum("for", "in"));
|
1041 | DEFPRINT(AST_ForOf, print_for_enum("for", "of"));
|
1042 | DEFPRINT(AST_With, function(output) {
|
1043 | var self = this;
|
1044 | output.print("with");
|
1045 | output.space();
|
1046 | output.with_parens(function() {
|
1047 | self.expression.print(output);
|
1048 | });
|
1049 | force_statement(self.body, output);
|
1050 | });
|
1051 | DEFPRINT(AST_ExportDeclaration, function(output) {
|
1052 | output.print("export");
|
1053 | output.space();
|
1054 | this.body.print(output);
|
1055 | });
|
1056 | DEFPRINT(AST_ExportDefault, function(output) {
|
1057 | output.print("export");
|
1058 | output.space();
|
1059 | output.print("default");
|
1060 | output.space();
|
1061 | var body = this.body;
|
1062 | body.print(output);
|
1063 | if (body instanceof AST_ClassExpression) {
|
1064 | if (!body.name) return;
|
1065 | }
|
1066 | if (body instanceof AST_DefClass) return;
|
1067 | if (body instanceof AST_LambdaDefinition) return;
|
1068 | if (body instanceof AST_LambdaExpression) {
|
1069 | if (!body.name && !is_arrow(body)) return;
|
1070 | }
|
1071 | output.semicolon();
|
1072 | });
|
1073 | DEFPRINT(AST_ExportForeign, function(output) {
|
1074 | var self = this;
|
1075 | output.print("export");
|
1076 | output.space();
|
1077 | var len = self.keys.length;
|
1078 | if (len == 0) {
|
1079 | print_braced_empty(self, output);
|
1080 | } else if (self.keys[0] == "*") {
|
1081 | print_entry(0);
|
1082 | } else output.with_block(function() {
|
1083 | output.indent();
|
1084 | print_entry(0);
|
1085 | for (var i = 1; i < len; i++) {
|
1086 | output.print(",");
|
1087 | output.newline();
|
1088 | output.indent();
|
1089 | print_entry(i);
|
1090 | }
|
1091 | output.newline();
|
1092 | });
|
1093 | output.space();
|
1094 | output.print("from");
|
1095 | output.space();
|
1096 | output.print_string(self.path, self.quote);
|
1097 | output.semicolon();
|
1098 |
|
1099 | function print_entry(index) {
|
1100 | var alias = self.aliases[index];
|
1101 | var key = self.keys[index];
|
1102 | output.print_name(key);
|
1103 | if (alias != key) {
|
1104 | output.space();
|
1105 | output.print("as");
|
1106 | output.space();
|
1107 | output.print_name(alias);
|
1108 | }
|
1109 | }
|
1110 | });
|
1111 | DEFPRINT(AST_ExportReferences, function(output) {
|
1112 | var self = this;
|
1113 | output.print("export");
|
1114 | output.space();
|
1115 | print_properties(self, output);
|
1116 | output.semicolon();
|
1117 | });
|
1118 | DEFPRINT(AST_Import, function(output) {
|
1119 | var self = this;
|
1120 | output.print("import");
|
1121 | output.space();
|
1122 | if (self.default) self.default.print(output);
|
1123 | if (self.all) {
|
1124 | if (self.default) output.comma();
|
1125 | self.all.print(output);
|
1126 | }
|
1127 | if (self.properties) {
|
1128 | if (self.default) output.comma();
|
1129 | print_properties(self, output);
|
1130 | }
|
1131 | if (self.all || self.default || self.properties) {
|
1132 | output.space();
|
1133 | output.print("from");
|
1134 | output.space();
|
1135 | }
|
1136 | output.print_string(self.path, self.quote);
|
1137 | output.semicolon();
|
1138 | });
|
1139 |
|
1140 |
|
1141 | function print_funargs(self, output) {
|
1142 | output.with_parens(function() {
|
1143 | self.argnames.forEach(function(arg, i) {
|
1144 | if (i) output.comma();
|
1145 | arg.print(output);
|
1146 | });
|
1147 | if (self.rest) {
|
1148 | if (self.argnames.length) output.comma();
|
1149 | output.print("...");
|
1150 | self.rest.print(output);
|
1151 | }
|
1152 | });
|
1153 | }
|
1154 | function print_arrow(self, output) {
|
1155 | var argname = self.argnames.length == 1 && !self.rest && self.argnames[0];
|
1156 | if (argname instanceof AST_SymbolFunarg && argname.name != "yield") {
|
1157 | argname.print(output);
|
1158 | } else {
|
1159 | print_funargs(self, output);
|
1160 | }
|
1161 | output.space();
|
1162 | output.print("=>");
|
1163 | output.space();
|
1164 | if (self.value) {
|
1165 | self.value.print(output);
|
1166 | } else {
|
1167 | print_braced(self, output, true);
|
1168 | }
|
1169 | }
|
1170 | DEFPRINT(AST_Arrow, function(output) {
|
1171 | print_arrow(this, output);
|
1172 | });
|
1173 | DEFPRINT(AST_AsyncArrow, function(output) {
|
1174 | output.print("async");
|
1175 | output.space();
|
1176 | print_arrow(this, output);
|
1177 | });
|
1178 | function print_lambda(self, output) {
|
1179 | if (self.name) {
|
1180 | output.space();
|
1181 | self.name.print(output);
|
1182 | }
|
1183 | print_funargs(self, output);
|
1184 | output.space();
|
1185 | print_braced(self, output, true);
|
1186 | }
|
1187 | DEFPRINT(AST_Lambda, function(output) {
|
1188 | output.print("function");
|
1189 | print_lambda(this, output);
|
1190 | });
|
1191 | function print_async(output) {
|
1192 | output.print("async");
|
1193 | output.space();
|
1194 | output.print("function");
|
1195 | print_lambda(this, output);
|
1196 | }
|
1197 | DEFPRINT(AST_AsyncDefun, print_async);
|
1198 | DEFPRINT(AST_AsyncFunction, print_async);
|
1199 | function print_async_generator(output) {
|
1200 | output.print("async");
|
1201 | output.space();
|
1202 | output.print("function*");
|
1203 | print_lambda(this, output);
|
1204 | }
|
1205 | DEFPRINT(AST_AsyncGeneratorDefun, print_async_generator);
|
1206 | DEFPRINT(AST_AsyncGeneratorFunction, print_async_generator);
|
1207 | function print_generator(output) {
|
1208 | output.print("function*");
|
1209 | print_lambda(this, output);
|
1210 | }
|
1211 | DEFPRINT(AST_GeneratorDefun, print_generator);
|
1212 | DEFPRINT(AST_GeneratorFunction, print_generator);
|
1213 |
|
1214 |
|
1215 | DEFPRINT(AST_Class, function(output) {
|
1216 | var self = this;
|
1217 | output.print("class");
|
1218 | if (self.name) {
|
1219 | output.space();
|
1220 | self.name.print(output);
|
1221 | }
|
1222 | if (self.extends) {
|
1223 | output.space();
|
1224 | output.print("extends");
|
1225 | output.space();
|
1226 | self.extends.print(output);
|
1227 | }
|
1228 | output.space();
|
1229 | print_properties(self, output, true);
|
1230 | });
|
1231 | DEFPRINT(AST_ClassField, function(output) {
|
1232 | var self = this;
|
1233 | if (self.static) {
|
1234 | output.print("static");
|
1235 | output.space();
|
1236 | }
|
1237 | print_property_key(self, output);
|
1238 | if (self.value) {
|
1239 | output.space();
|
1240 | output.print("=");
|
1241 | output.space();
|
1242 | self.value.print(output);
|
1243 | }
|
1244 | output.semicolon();
|
1245 | });
|
1246 | DEFPRINT(AST_ClassGetter, print_accessor("get"));
|
1247 | DEFPRINT(AST_ClassSetter, print_accessor("set"));
|
1248 | function print_method(self, output) {
|
1249 | var fn = self.value;
|
1250 | if (is_async(fn)) {
|
1251 | output.print("async");
|
1252 | output.space();
|
1253 | }
|
1254 | if (is_generator(fn)) output.print("*");
|
1255 | print_property_key(self, output);
|
1256 | print_lambda(self.value, output);
|
1257 | }
|
1258 | DEFPRINT(AST_ClassMethod, function(output) {
|
1259 | var self = this;
|
1260 | if (self.static) {
|
1261 | output.print("static");
|
1262 | output.space();
|
1263 | }
|
1264 | print_method(self, output);
|
1265 | });
|
1266 |
|
1267 |
|
1268 | function print_jump(kind, prop) {
|
1269 | return function(output) {
|
1270 | output.print(kind);
|
1271 | var target = this[prop];
|
1272 | if (target) {
|
1273 | output.space();
|
1274 | target.print(output);
|
1275 | }
|
1276 | output.semicolon();
|
1277 | };
|
1278 | }
|
1279 | DEFPRINT(AST_Return, print_jump("return", "value"));
|
1280 | DEFPRINT(AST_Throw, print_jump("throw", "value"));
|
1281 | DEFPRINT(AST_Break, print_jump("break", "label"));
|
1282 | DEFPRINT(AST_Continue, print_jump("continue", "label"));
|
1283 |
|
1284 |
|
1285 | function make_then(self, output) {
|
1286 | var b = self.body;
|
1287 | if (output.option("braces") && !(b instanceof AST_Const || b instanceof AST_Let)
|
1288 | || output.option("ie") && b instanceof AST_Do)
|
1289 | return make_block(b, output);
|
1290 |
|
1291 |
|
1292 |
|
1293 |
|
1294 |
|
1295 |
|
1296 |
|
1297 | if (!b) return output.force_semicolon();
|
1298 | while (true) {
|
1299 | if (b instanceof AST_If) {
|
1300 | if (!b.alternative) {
|
1301 | make_block(self.body, output);
|
1302 | return;
|
1303 | }
|
1304 | b = b.alternative;
|
1305 | } else if (b instanceof AST_StatementWithBody) {
|
1306 | b = b.body;
|
1307 | } else break;
|
1308 | }
|
1309 | force_statement(self.body, output);
|
1310 | }
|
1311 | DEFPRINT(AST_If, function(output) {
|
1312 | var self = this;
|
1313 | output.print("if");
|
1314 | output.space();
|
1315 | output.with_parens(function() {
|
1316 | self.condition.print(output);
|
1317 | });
|
1318 | if (self.alternative) {
|
1319 | make_then(self, output);
|
1320 | output.space();
|
1321 | output.print("else");
|
1322 | if (self.alternative instanceof AST_If) {
|
1323 | output.space();
|
1324 | self.alternative.print(output);
|
1325 | } else {
|
1326 | force_statement(self.alternative, output);
|
1327 | }
|
1328 | } else {
|
1329 | force_statement(self.body, output);
|
1330 | }
|
1331 | });
|
1332 |
|
1333 |
|
1334 | DEFPRINT(AST_Switch, function(output) {
|
1335 | var self = this;
|
1336 | output.print("switch");
|
1337 | output.space();
|
1338 | output.with_parens(function() {
|
1339 | self.expression.print(output);
|
1340 | });
|
1341 | output.space();
|
1342 | var last = self.body.length - 1;
|
1343 | if (last < 0) print_braced_empty(self, output);
|
1344 | else output.with_block(function() {
|
1345 | self.body.forEach(function(branch, i) {
|
1346 | output.indent(true);
|
1347 | branch.print(output);
|
1348 | if (i < last && branch.body.length > 0)
|
1349 | output.newline();
|
1350 | });
|
1351 | });
|
1352 | });
|
1353 | function print_branch_body(self, output) {
|
1354 | output.newline();
|
1355 | self.body.forEach(function(stmt) {
|
1356 | output.indent();
|
1357 | stmt.print(output);
|
1358 | output.newline();
|
1359 | });
|
1360 | }
|
1361 | DEFPRINT(AST_Default, function(output) {
|
1362 | output.print("default:");
|
1363 | print_branch_body(this, output);
|
1364 | });
|
1365 | DEFPRINT(AST_Case, function(output) {
|
1366 | var self = this;
|
1367 | output.print("case");
|
1368 | output.space();
|
1369 | self.expression.print(output);
|
1370 | output.print(":");
|
1371 | print_branch_body(self, output);
|
1372 | });
|
1373 |
|
1374 |
|
1375 | DEFPRINT(AST_Try, function(output) {
|
1376 | var self = this;
|
1377 | output.print("try");
|
1378 | output.space();
|
1379 | print_braced(self, output);
|
1380 | if (self.bcatch) {
|
1381 | output.space();
|
1382 | self.bcatch.print(output);
|
1383 | }
|
1384 | if (self.bfinally) {
|
1385 | output.space();
|
1386 | self.bfinally.print(output);
|
1387 | }
|
1388 | });
|
1389 | DEFPRINT(AST_Catch, function(output) {
|
1390 | var self = this;
|
1391 | output.print("catch");
|
1392 | if (self.argname) {
|
1393 | output.space();
|
1394 | output.with_parens(function() {
|
1395 | self.argname.print(output);
|
1396 | });
|
1397 | }
|
1398 | output.space();
|
1399 | print_braced(self, output);
|
1400 | });
|
1401 | DEFPRINT(AST_Finally, function(output) {
|
1402 | output.print("finally");
|
1403 | output.space();
|
1404 | print_braced(this, output);
|
1405 | });
|
1406 |
|
1407 | function print_definitinos(type) {
|
1408 | return function(output) {
|
1409 | var self = this;
|
1410 | output.print(type);
|
1411 | output.space();
|
1412 | self.definitions.forEach(function(def, i) {
|
1413 | if (i) output.comma();
|
1414 | def.print(output);
|
1415 | });
|
1416 | var p = output.parent();
|
1417 | if (!(p instanceof AST_IterationStatement && p.init === self)) output.semicolon();
|
1418 | };
|
1419 | }
|
1420 | DEFPRINT(AST_Const, print_definitinos("const"));
|
1421 | DEFPRINT(AST_Let, print_definitinos("let"));
|
1422 | DEFPRINT(AST_Var, print_definitinos("var"));
|
1423 |
|
1424 | function parenthesize_for_noin(node, output, noin) {
|
1425 | var parens = false;
|
1426 |
|
1427 |
|
1428 | if (noin) node.walk(new TreeWalker(function(node) {
|
1429 | if (parens) return true;
|
1430 | if (node instanceof AST_Binary && node.operator == "in") return parens = true;
|
1431 | if (node instanceof AST_Scope && !(is_arrow(node) && node.value)) return true;
|
1432 | }));
|
1433 | node.print(output, parens);
|
1434 | }
|
1435 |
|
1436 | DEFPRINT(AST_VarDef, function(output) {
|
1437 | var self = this;
|
1438 | self.name.print(output);
|
1439 | if (self.value) {
|
1440 | output.space();
|
1441 | output.print("=");
|
1442 | output.space();
|
1443 | var p = output.parent(1);
|
1444 | var noin = p instanceof AST_For || p instanceof AST_ForEnumeration;
|
1445 | parenthesize_for_noin(self.value, output, noin);
|
1446 | }
|
1447 | });
|
1448 |
|
1449 | DEFPRINT(AST_DefaultValue, function(output) {
|
1450 | var self = this;
|
1451 | self.name.print(output);
|
1452 | output.space();
|
1453 | output.print("=");
|
1454 | output.space();
|
1455 | self.value.print(output);
|
1456 | });
|
1457 |
|
1458 |
|
1459 | function print_annotation(self, output) {
|
1460 | if (!output.option("annotations")) return;
|
1461 | if (!self.pure) return;
|
1462 | var level = 0, parent = self, node;
|
1463 | do {
|
1464 | node = parent;
|
1465 | parent = output.parent(level++);
|
1466 | if (parent instanceof AST_Call && parent.expression === node) return;
|
1467 | } while (parent instanceof AST_PropAccess && parent.expression === node);
|
1468 | output.print("/*@__PURE__*/");
|
1469 | }
|
1470 | function print_call_args(self, output) {
|
1471 | if (self.expression instanceof AST_Call || self.expression instanceof AST_Lambda) {
|
1472 | output.add_mapping(self.start);
|
1473 | }
|
1474 | output.with_parens(function() {
|
1475 | self.args.forEach(function(expr, i) {
|
1476 | if (i) output.comma();
|
1477 | expr.print(output);
|
1478 | });
|
1479 | });
|
1480 | }
|
1481 | DEFPRINT(AST_Call, function(output) {
|
1482 | var self = this;
|
1483 | print_annotation(self, output);
|
1484 | self.expression.print(output);
|
1485 | if (self.optional) output.print("?.");
|
1486 | print_call_args(self, output);
|
1487 | });
|
1488 | DEFPRINT(AST_New, function(output) {
|
1489 | var self = this;
|
1490 | print_annotation(self, output);
|
1491 | output.print("new");
|
1492 | output.space();
|
1493 | self.expression.print(output);
|
1494 | if (need_constructor_parens(self, output)) print_call_args(self, output);
|
1495 | });
|
1496 | DEFPRINT(AST_Sequence, function(output) {
|
1497 | this.expressions.forEach(function(node, index) {
|
1498 | if (index > 0) {
|
1499 | output.comma();
|
1500 | if (output.should_break()) {
|
1501 | output.newline();
|
1502 | output.indent();
|
1503 | }
|
1504 | }
|
1505 | node.print(output);
|
1506 | });
|
1507 | });
|
1508 | DEFPRINT(AST_Dot, function(output) {
|
1509 | var self = this;
|
1510 | var expr = self.expression;
|
1511 | expr.print(output);
|
1512 | var prop = self.property;
|
1513 | if (output.option("ie") && RESERVED_WORDS[prop]) {
|
1514 | output.print(self.optional ? "?.[" : "[");
|
1515 | output.add_mapping(self.end);
|
1516 | output.print_string(prop);
|
1517 | output.print("]");
|
1518 | } else {
|
1519 | if (expr instanceof AST_Number && !/[ex.)]/i.test(output.last())) output.print(".");
|
1520 | output.print(self.optional ? "?." : ".");
|
1521 |
|
1522 | output.add_mapping(self.end);
|
1523 | output.print_name(prop);
|
1524 | }
|
1525 | });
|
1526 | DEFPRINT(AST_Sub, function(output) {
|
1527 | var self = this;
|
1528 | self.expression.print(output);
|
1529 | output.print(self.optional ? "?.[" : "[");
|
1530 | self.property.print(output);
|
1531 | output.print("]");
|
1532 | });
|
1533 | DEFPRINT(AST_Spread, function(output) {
|
1534 | output.print("...");
|
1535 | this.expression.print(output);
|
1536 | });
|
1537 | DEFPRINT(AST_UnaryPrefix, function(output) {
|
1538 | var op = this.operator;
|
1539 | var exp = this.expression;
|
1540 | output.print(op);
|
1541 | if (/^[a-z]/i.test(op)
|
1542 | || (/[+-]$/.test(op)
|
1543 | && exp instanceof AST_UnaryPrefix
|
1544 | && /^[+-]/.test(exp.operator))) {
|
1545 | output.space();
|
1546 | }
|
1547 | exp.print(output);
|
1548 | });
|
1549 | DEFPRINT(AST_UnaryPostfix, function(output) {
|
1550 | this.expression.print(output);
|
1551 | output.print(this.operator);
|
1552 | });
|
1553 | DEFPRINT(AST_Binary, function(output) {
|
1554 | var self = this;
|
1555 | self.left.print(output);
|
1556 | output.space();
|
1557 | output.print(self.operator);
|
1558 | output.space();
|
1559 | self.right.print(output);
|
1560 | });
|
1561 | DEFPRINT(AST_Conditional, function(output) {
|
1562 | var self = this;
|
1563 | self.condition.print(output);
|
1564 | output.space();
|
1565 | output.print("?");
|
1566 | output.space();
|
1567 | self.consequent.print(output);
|
1568 | output.space();
|
1569 | output.colon();
|
1570 | self.alternative.print(output);
|
1571 | });
|
1572 | DEFPRINT(AST_Await, function(output) {
|
1573 | output.print("await");
|
1574 | output.space();
|
1575 | this.expression.print(output);
|
1576 | });
|
1577 | DEFPRINT(AST_Yield, function(output) {
|
1578 | output.print(this.nested ? "yield*" : "yield");
|
1579 | if (this.expression) {
|
1580 | output.space();
|
1581 | this.expression.print(output);
|
1582 | }
|
1583 | });
|
1584 |
|
1585 |
|
1586 | DEFPRINT(AST_Array, function(output) {
|
1587 | var a = this.elements, len = a.length;
|
1588 | output.with_square(len > 0 ? function() {
|
1589 | output.space();
|
1590 | a.forEach(function(exp, i) {
|
1591 | if (i) output.comma();
|
1592 | exp.print(output);
|
1593 |
|
1594 |
|
1595 |
|
1596 | if (i === len - 1 && exp instanceof AST_Hole)
|
1597 | output.comma();
|
1598 | });
|
1599 | output.space();
|
1600 | } : noop);
|
1601 | });
|
1602 | DEFPRINT(AST_DestructuredArray, function(output) {
|
1603 | var a = this.elements, len = a.length, rest = this.rest;
|
1604 | output.with_square(len || rest ? function() {
|
1605 | output.space();
|
1606 | a.forEach(function(exp, i) {
|
1607 | if (i) output.comma();
|
1608 | exp.print(output);
|
1609 | });
|
1610 | if (rest) {
|
1611 | if (len) output.comma();
|
1612 | output.print("...");
|
1613 | rest.print(output);
|
1614 | } else if (a[len - 1] instanceof AST_Hole) {
|
1615 |
|
1616 |
|
1617 |
|
1618 | output.comma();
|
1619 | }
|
1620 | output.space();
|
1621 | } : noop);
|
1622 | });
|
1623 | DEFPRINT(AST_DestructuredKeyVal, function(output) {
|
1624 | var self = this;
|
1625 | var key = print_property_key(self, output);
|
1626 | var value = self.value;
|
1627 | if (key) {
|
1628 | if (value instanceof AST_DefaultValue) {
|
1629 | if (value.name instanceof AST_Symbol && key == get_symbol_name(value.name)) {
|
1630 | output.space();
|
1631 | output.print("=");
|
1632 | output.space();
|
1633 | value.value.print(output);
|
1634 | return;
|
1635 | }
|
1636 | } else if (value instanceof AST_Symbol) {
|
1637 | if (key == get_symbol_name(value)) return;
|
1638 | }
|
1639 | }
|
1640 | output.colon();
|
1641 | value.print(output);
|
1642 | });
|
1643 | DEFPRINT(AST_DestructuredObject, function(output) {
|
1644 | var props = this.properties, len = props.length, rest = this.rest;
|
1645 | if (len || rest) output.with_block(function() {
|
1646 | props.forEach(function(prop, i) {
|
1647 | if (i) {
|
1648 | output.print(",");
|
1649 | output.newline();
|
1650 | }
|
1651 | output.indent();
|
1652 | prop.print(output);
|
1653 | });
|
1654 | if (rest) {
|
1655 | if (len) {
|
1656 | output.print(",");
|
1657 | output.newline();
|
1658 | }
|
1659 | output.indent();
|
1660 | output.print("...");
|
1661 | rest.print(output);
|
1662 | }
|
1663 | output.newline();
|
1664 | });
|
1665 | else print_braced_empty(this, output);
|
1666 | });
|
1667 | function print_properties(self, output, no_comma) {
|
1668 | var props = self.properties;
|
1669 | if (props.length > 0) output.with_block(function() {
|
1670 | props.forEach(function(prop, i) {
|
1671 | if (i) {
|
1672 | if (!no_comma) output.print(",");
|
1673 | output.newline();
|
1674 | }
|
1675 | output.indent();
|
1676 | prop.print(output);
|
1677 | });
|
1678 | output.newline();
|
1679 | });
|
1680 | else print_braced_empty(self, output);
|
1681 | }
|
1682 | DEFPRINT(AST_Object, function(output) {
|
1683 | print_properties(this, output);
|
1684 | });
|
1685 |
|
1686 | function print_property_key(self, output) {
|
1687 | var key = self.key;
|
1688 | if (key instanceof AST_Node) return output.with_square(function() {
|
1689 | key.print(output);
|
1690 | });
|
1691 | var quote = self.start && self.start.quote;
|
1692 | if (output.option("quote_keys") || quote && output.option("keep_quoted_props")) {
|
1693 | output.print_string(key, quote);
|
1694 | } else if ("" + +key == key && key >= 0) {
|
1695 | output.print(make_num(key));
|
1696 | } else if (self.private) {
|
1697 | output.print_name(key);
|
1698 | } else if (RESERVED_WORDS[key] ? !output.option("ie") : is_identifier_string(key)) {
|
1699 | output.print_name(key);
|
1700 | return key;
|
1701 | } else {
|
1702 | output.print_string(key, quote);
|
1703 | }
|
1704 | }
|
1705 | DEFPRINT(AST_ObjectKeyVal, function(output) {
|
1706 | var self = this;
|
1707 | print_property_key(self, output);
|
1708 | output.colon();
|
1709 | self.value.print(output);
|
1710 | });
|
1711 | DEFPRINT(AST_ObjectMethod, function(output) {
|
1712 | print_method(this, output);
|
1713 | });
|
1714 | function print_accessor(type) {
|
1715 | return function(output) {
|
1716 | var self = this;
|
1717 | if (self.static) {
|
1718 | output.print("static");
|
1719 | output.space();
|
1720 | }
|
1721 | output.print(type);
|
1722 | output.space();
|
1723 | print_property_key(self, output);
|
1724 | print_lambda(self.value, output);
|
1725 | };
|
1726 | }
|
1727 | DEFPRINT(AST_ObjectGetter, print_accessor("get"));
|
1728 | DEFPRINT(AST_ObjectSetter, print_accessor("set"));
|
1729 | function get_symbol_name(sym) {
|
1730 | var def = sym.definition();
|
1731 | return def && def.mangled_name || sym.name;
|
1732 | }
|
1733 | DEFPRINT(AST_Symbol, function(output) {
|
1734 | output.print_name(get_symbol_name(this));
|
1735 | });
|
1736 | DEFPRINT(AST_SymbolExport, function(output) {
|
1737 | var self = this;
|
1738 | var name = get_symbol_name(self);
|
1739 | output.print_name(name);
|
1740 | var alias = self.alias;
|
1741 | if (alias != name) {
|
1742 | output.space();
|
1743 | output.print("as");
|
1744 | output.space();
|
1745 | output.print_name(alias);
|
1746 | }
|
1747 | });
|
1748 | DEFPRINT(AST_SymbolImport, function(output) {
|
1749 | var self = this;
|
1750 | var name = get_symbol_name(self);
|
1751 | var key = self.key;
|
1752 | if (key && key != name) {
|
1753 | output.print_name(key);
|
1754 | output.space();
|
1755 | output.print("as");
|
1756 | output.space();
|
1757 | }
|
1758 | output.print_name(name);
|
1759 | });
|
1760 | DEFPRINT(AST_Hole, noop);
|
1761 | DEFPRINT(AST_Template, function(output) {
|
1762 | var self = this;
|
1763 | if (self.tag) self.tag.print(output);
|
1764 | output.print("`");
|
1765 | for (var i = 0; i < self.expressions.length; i++) {
|
1766 | output.print(self.strings[i]);
|
1767 | output.print("${");
|
1768 | self.expressions[i].print(output);
|
1769 | output.print("}");
|
1770 | }
|
1771 | output.print(self.strings[i]);
|
1772 | output.print("`");
|
1773 | });
|
1774 | DEFPRINT(AST_Constant, function(output) {
|
1775 | output.print("" + this.value);
|
1776 | });
|
1777 | DEFPRINT(AST_String, function(output) {
|
1778 | output.print_string(this.value, this.quote);
|
1779 | });
|
1780 | DEFPRINT(AST_Number, function(output) {
|
1781 | var start = this.start;
|
1782 | if (use_asm && start && start.raw != null) {
|
1783 | output.print(start.raw);
|
1784 | } else {
|
1785 | output.print(make_num(this.value));
|
1786 | }
|
1787 | });
|
1788 |
|
1789 | DEFPRINT(AST_RegExp, function(output) {
|
1790 | var regexp = this.value;
|
1791 | var str = regexp.toString();
|
1792 | var end = str.lastIndexOf("/");
|
1793 | if (regexp.raw_source) {
|
1794 | str = "/" + regexp.raw_source + str.slice(end);
|
1795 | } else if (end == 1) {
|
1796 | str = "/(?:)" + str.slice(end);
|
1797 | } else if (str.indexOf("/", 1) < end) {
|
1798 | str = "/" + str.slice(1, end).replace(/\\\\|[^/]?\//g, function(match) {
|
1799 | return match[0] == "\\" ? match : match.slice(0, -1) + "\\/";
|
1800 | }) + str.slice(end);
|
1801 | }
|
1802 | output.print(output.to_utf8(str).replace(/\\(?:\0(?![0-9])|[^\0])/g, function(match) {
|
1803 | switch (match[1]) {
|
1804 | case "\n": return "\\n";
|
1805 | case "\r": return "\\r";
|
1806 | case "\t": return "\t";
|
1807 | case "\b": return "\b";
|
1808 | case "\f": return "\f";
|
1809 | case "\0": return "\0";
|
1810 | case "\x0B": return "\v";
|
1811 | case "\u2028": return "\\u2028";
|
1812 | case "\u2029": return "\\u2029";
|
1813 | default: return match;
|
1814 | }
|
1815 | }).replace(/[\n\r\u2028\u2029]/g, function(c) {
|
1816 | switch (c) {
|
1817 | case "\n": return "\\n";
|
1818 | case "\r": return "\\r";
|
1819 | case "\u2028": return "\\u2028";
|
1820 | case "\u2029": return "\\u2029";
|
1821 | }
|
1822 | }));
|
1823 | var p = output.parent();
|
1824 | if (p instanceof AST_Binary && /^in/.test(p.operator) && p.left === this)
|
1825 | output.print(" ");
|
1826 | });
|
1827 |
|
1828 | function force_statement(stat, output) {
|
1829 | if (output.option("braces") && !(stat instanceof AST_Const || stat instanceof AST_Let)) {
|
1830 | make_block(stat, output);
|
1831 | } else if (stat instanceof AST_EmptyStatement) {
|
1832 | output.force_semicolon();
|
1833 | } else {
|
1834 | output.space();
|
1835 | stat.print(output);
|
1836 | }
|
1837 | }
|
1838 |
|
1839 |
|
1840 | function need_constructor_parens(self, output) {
|
1841 |
|
1842 | if (self.args.length > 0) return true;
|
1843 |
|
1844 | return output.option("beautify");
|
1845 | }
|
1846 |
|
1847 | function best_of(a) {
|
1848 | var best = a[0], len = best.length;
|
1849 | for (var i = 1; i < a.length; ++i) {
|
1850 | if (a[i].length < len) {
|
1851 | best = a[i];
|
1852 | len = best.length;
|
1853 | }
|
1854 | }
|
1855 | return best;
|
1856 | }
|
1857 |
|
1858 | function make_num(num) {
|
1859 | var str = num.toString(10).replace(/^0\./, ".").replace("e+", "e");
|
1860 | var candidates = [ str ];
|
1861 | if (Math.floor(num) === num) {
|
1862 | if (num < 0) {
|
1863 | candidates.push("-0x" + (-num).toString(16).toLowerCase());
|
1864 | } else {
|
1865 | candidates.push("0x" + num.toString(16).toLowerCase());
|
1866 | }
|
1867 | }
|
1868 | var match, len, digits;
|
1869 | if (match = /^\.0+/.exec(str)) {
|
1870 | len = match[0].length;
|
1871 | digits = str.slice(len);
|
1872 | candidates.push(digits + "e-" + (digits.length + len - 1));
|
1873 | } else if (match = /0+$/.exec(str)) {
|
1874 | len = match[0].length;
|
1875 | candidates.push(str.slice(0, -len) + "e" + len);
|
1876 | } else if (match = /^(\d)\.(\d+)e(-?\d+)$/.exec(str)) {
|
1877 | candidates.push(match[1] + match[2] + "e" + (match[3] - match[2].length));
|
1878 | }
|
1879 | return best_of(candidates);
|
1880 | }
|
1881 |
|
1882 | function make_block(stmt, output) {
|
1883 | output.space();
|
1884 | if (stmt instanceof AST_EmptyStatement) {
|
1885 | print_braced_empty(stmt, output);
|
1886 | } else if (stmt instanceof AST_BlockStatement) {
|
1887 | stmt.print(output);
|
1888 | } else output.with_block(function() {
|
1889 | output.indent();
|
1890 | stmt.print(output);
|
1891 | output.newline();
|
1892 | });
|
1893 | }
|
1894 |
|
1895 |
|
1896 |
|
1897 | function DEFMAP(nodetype, generator) {
|
1898 | nodetype.forEach(function(nodetype) {
|
1899 | nodetype.DEFMETHOD("add_source_map", generator);
|
1900 | });
|
1901 | }
|
1902 |
|
1903 | DEFMAP([
|
1904 |
|
1905 |
|
1906 | AST_Node,
|
1907 |
|
1908 | AST_LabeledStatement,
|
1909 | ], noop);
|
1910 |
|
1911 |
|
1912 |
|
1913 | DEFMAP([
|
1914 | AST_Array,
|
1915 | AST_BlockStatement,
|
1916 | AST_Catch,
|
1917 | AST_Constant,
|
1918 | AST_Debugger,
|
1919 | AST_Definitions,
|
1920 | AST_Destructured,
|
1921 | AST_Finally,
|
1922 | AST_Jump,
|
1923 | AST_Lambda,
|
1924 | AST_New,
|
1925 | AST_Object,
|
1926 | AST_StatementWithBody,
|
1927 | AST_Symbol,
|
1928 | AST_Switch,
|
1929 | AST_SwitchBranch,
|
1930 | AST_Try,
|
1931 | ], function(output) {
|
1932 | output.add_mapping(this.start);
|
1933 | });
|
1934 |
|
1935 | DEFMAP([
|
1936 | AST_ClassProperty,
|
1937 | AST_DestructuredKeyVal,
|
1938 | AST_ObjectProperty,
|
1939 | ], function(output) {
|
1940 | if (typeof this.key == "string") output.add_mapping(this.start, this.key);
|
1941 | });
|
1942 | })();
|