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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 |
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53 | var readonly = !options;
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54 | options = defaults(options, {
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55 | ascii_only : false,
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56 | beautify : false,
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57 | braces : false,
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58 | comments : false,
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59 | ie8 : 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 | webkit : false,
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73 | width : 80,
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74 | wrap_iife : false,
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75 | }, true);
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76 |
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77 |
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78 | var comment_filter = return_false;
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79 | if (options.comments) {
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80 | var comments = options.comments;
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81 | if (typeof options.comments === "string" && /^\/.*\/[a-zA-Z]*$/.test(options.comments)) {
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82 | var regex_pos = options.comments.lastIndexOf("/");
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83 | comments = new RegExp(
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84 | options.comments.substr(1, regex_pos - 1),
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85 | options.comments.substr(regex_pos + 1)
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86 | );
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87 | }
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88 | if (comments instanceof RegExp) {
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89 | comment_filter = function(comment) {
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90 | return comment.type != "comment5" && comments.test(comment.value);
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91 | };
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92 | } else if (typeof comments === "function") {
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93 | comment_filter = function(comment) {
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94 | return comment.type != "comment5" && comments(this, comment);
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95 | };
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96 | } else if (comments === "some") {
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97 | comment_filter = is_some_comments;
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98 | } else {
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99 | comment_filter = return_true;
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100 | }
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101 | }
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102 |
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103 | var indentation = 0;
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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 OUTPUT = "";
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108 |
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109 | var to_utf8 = options.ascii_only ? function(str, identifier) {
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110 | return str.replace(/[\u0000-\u001f\u007f-\uffff]/g, function(ch) {
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111 | var code = ch.charCodeAt(0).toString(16);
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112 | if (code.length <= 2 && !identifier) {
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113 | while (code.length < 2) code = "0" + code;
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114 | return "\\x" + code;
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115 | } else {
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116 | while (code.length < 4) code = "0" + code;
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117 | return "\\u" + code;
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118 | }
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119 | });
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120 | } : function(str) {
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121 | var s = "";
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122 | for (var i = 0, j = 0; i < str.length; i++) {
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123 | var code = str.charCodeAt(i);
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124 | if (is_surrogate_pair_head(code)) {
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125 | if (is_surrogate_pair_tail(str.charCodeAt(i + 1))) {
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126 | i++;
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127 | continue;
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128 | }
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129 | } else if (!is_surrogate_pair_tail(code)) {
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130 | continue;
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131 | }
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132 | s += str.slice(j, i) + "\\u" + code.toString(16);
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133 | j = i + 1;
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134 | }
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135 | return j == 0 ? str : s + str.slice(j);
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136 | };
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137 |
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138 | function make_string(str, quote) {
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139 | var dq = 0, sq = 0;
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140 | str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g, function(s, i) {
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141 | switch (s) {
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142 | case '"': ++dq; return '"';
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143 | case "'": ++sq; return "'";
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144 | case "\\": return "\\\\";
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145 | case "\n": return "\\n";
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146 | case "\r": return "\\r";
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147 | case "\t": return "\\t";
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148 | case "\b": return "\\b";
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149 | case "\f": return "\\f";
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150 | case "\x0B": return options.ie8 ? "\\x0B" : "\\v";
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151 | case "\u2028": return "\\u2028";
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152 | case "\u2029": return "\\u2029";
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153 | case "\ufeff": return "\\ufeff";
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154 | case "\0":
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155 | return /[0-9]/.test(str.charAt(i+1)) ? "\\x00" : "\\0";
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156 | }
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157 | return s;
|
158 | });
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159 | function quote_single() {
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160 | return "'" + str.replace(/\x27/g, "\\'") + "'";
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161 | }
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162 | function quote_double() {
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163 | return '"' + str.replace(/\x22/g, '\\"') + '"';
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164 | }
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165 | str = to_utf8(str);
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166 | switch (options.quote_style) {
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167 | case 1:
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168 | return quote_single();
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169 | case 2:
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170 | return quote_double();
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171 | case 3:
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172 | return quote == "'" ? quote_single() : quote_double();
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173 | default:
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174 | return dq > sq ? quote_single() : quote_double();
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175 | }
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176 | }
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177 |
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178 | function encode_string(str, quote) {
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179 | var ret = make_string(str, quote);
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180 | if (options.inline_script) {
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181 | ret = ret.replace(/<\x2f(script)([>\/\t\n\f\r ])/gi, "<\\/$1$2");
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182 | ret = ret.replace(/\x3c!--/g, "\\x3c!--");
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183 | ret = ret.replace(/--\x3e/g, "--\\x3e");
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184 | }
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185 | return ret;
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186 | }
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187 |
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188 | function make_name(name) {
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189 | name = name.toString();
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190 | name = to_utf8(name, true);
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191 | return name;
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192 | }
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193 |
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194 | function make_indent(back) {
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195 | return repeat_string(" ", options.indent_start + indentation - back * options.indent_level);
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196 | }
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197 |
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198 |
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199 |
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200 | var has_parens = false;
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201 | var line_end = 0;
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202 | var line_fixed = true;
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203 | var might_need_space = false;
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204 | var might_need_semicolon = false;
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205 | var need_newline_indented = false;
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206 | var need_space = false;
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207 | var newline_insert = -1;
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208 | var last = "";
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209 | var mapping_token, mapping_name, mappings = options.source_map && [];
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210 |
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211 | var adjust_mappings = mappings ? function(line, col) {
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212 | mappings.forEach(function(mapping) {
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213 | mapping.line += line;
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214 | mapping.col += col;
|
215 | });
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216 | } : noop;
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217 |
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218 | var flush_mappings = mappings ? function() {
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219 | mappings.forEach(function(mapping) {
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220 | options.source_map.add(
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221 | mapping.token.file,
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222 | mapping.line, mapping.col,
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223 | mapping.token.line, mapping.token.col,
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224 | !mapping.name && mapping.token.type == "name" ? mapping.token.value : mapping.name
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225 | );
|
226 | });
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227 | mappings = [];
|
228 | } : noop;
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229 |
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230 | function insert_newlines(count) {
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231 | var index = OUTPUT.lastIndexOf("\n");
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232 | if (line_end < index) line_end = index;
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233 | var left = OUTPUT.slice(0, line_end);
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234 | var right = OUTPUT.slice(line_end);
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235 | adjust_mappings(count, right.length - current_col);
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236 | current_line += count;
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237 | current_pos += count;
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238 | current_col = right.length;
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239 | OUTPUT = left;
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240 | while (count--) OUTPUT += "\n";
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241 | OUTPUT += right;
|
242 | }
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243 |
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244 | var fix_line = options.max_line_len ? function() {
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245 | if (line_fixed) {
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246 | if (current_col > options.max_line_len) {
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247 | AST_Node.warn("Output exceeds {max_line_len} characters", options);
|
248 | }
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249 | return;
|
250 | }
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251 | if (current_col > options.max_line_len) insert_newlines(1);
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252 | line_fixed = true;
|
253 | flush_mappings();
|
254 | } : noop;
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255 |
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256 | var requireSemicolonChars = makePredicate("( [ + * / - , .");
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257 |
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258 | function print(str) {
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259 | str = String(str);
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260 | var ch = str.charAt(0);
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261 | if (need_newline_indented && ch) {
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262 | need_newline_indented = false;
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263 | if (ch != "\n") {
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264 | print("\n");
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265 | indent();
|
266 | }
|
267 | }
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268 | if (need_space && ch) {
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269 | need_space = false;
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270 | if (!/[\s;})]/.test(ch)) {
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271 | space();
|
272 | }
|
273 | }
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274 | newline_insert = -1;
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275 | var prev = last.slice(-1);
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276 | if (might_need_semicolon) {
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277 | might_need_semicolon = false;
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278 |
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279 | if (prev == ":" && ch == "}" || (!ch || ";}".indexOf(ch) < 0) && prev != ";") {
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280 | if (options.semicolons || requireSemicolonChars[ch]) {
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281 | OUTPUT += ";";
|
282 | current_col++;
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283 | current_pos++;
|
284 | } else {
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285 | fix_line();
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286 | OUTPUT += "\n";
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287 | current_pos++;
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288 | current_line++;
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289 | current_col = 0;
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290 |
|
291 | if (/^\s+$/.test(str)) {
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292 |
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293 |
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294 | might_need_semicolon = true;
|
295 | }
|
296 | }
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297 |
|
298 | if (!options.beautify)
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299 | might_need_space = false;
|
300 | }
|
301 | }
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302 |
|
303 | if (might_need_space) {
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304 | if (is_identifier_char(prev) && (is_identifier_char(ch) || ch == "\\")
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305 | || (ch == "/" && ch == prev)
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306 | || ((ch == "+" || ch == "-") && ch == last)
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307 | || str == "--" && last == "!"
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308 | || last == "--" && ch == ">") {
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309 | OUTPUT += " ";
|
310 | current_col++;
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311 | current_pos++;
|
312 | }
|
313 | if (prev != "<" || str != "!") might_need_space = false;
|
314 | }
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315 |
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316 | if (mapping_token) {
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317 | mappings.push({
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318 | token: mapping_token,
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319 | name: mapping_name,
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320 | line: current_line,
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321 | col: current_col
|
322 | });
|
323 | mapping_token = false;
|
324 | if (line_fixed) flush_mappings();
|
325 | }
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326 |
|
327 | OUTPUT += str;
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328 | has_parens = str.slice(-1) == "(";
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329 | current_pos += str.length;
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330 | var a = str.split(/\r?\n/), n = a.length - 1;
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331 | current_line += n;
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332 | current_col += a[0].length;
|
333 | if (n > 0) {
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334 | fix_line();
|
335 | current_col = a[n].length;
|
336 | }
|
337 | last = str;
|
338 | }
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339 |
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340 | var space = options.beautify ? function() {
|
341 | print(" ");
|
342 | } : function() {
|
343 | might_need_space = true;
|
344 | };
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345 |
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346 | var indent = options.beautify ? function(half) {
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347 | if (options.beautify) {
|
348 | print(make_indent(half ? 0.5 : 0));
|
349 | }
|
350 | } : noop;
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351 |
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352 | var with_indent = options.beautify ? function(col, cont) {
|
353 | if (col === true) col = next_indent();
|
354 | var save_indentation = indentation;
|
355 | indentation = col;
|
356 | var ret = cont();
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357 | indentation = save_indentation;
|
358 | return ret;
|
359 | } : function(col, cont) { return cont() };
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360 |
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361 | var may_add_newline = options.max_line_len || options.preserve_line ? function() {
|
362 | fix_line();
|
363 | line_end = OUTPUT.length;
|
364 | line_fixed = false;
|
365 | } : noop;
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366 |
|
367 | var newline = options.beautify ? function() {
|
368 | if (newline_insert < 0) return print("\n");
|
369 | if (OUTPUT[newline_insert] != "\n") {
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370 | OUTPUT = OUTPUT.slice(0, newline_insert) + "\n" + OUTPUT.slice(newline_insert);
|
371 | current_pos++;
|
372 | current_line++;
|
373 | }
|
374 | newline_insert++;
|
375 | } : may_add_newline;
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376 |
|
377 | var semicolon = options.beautify ? function() {
|
378 | print(";");
|
379 | } : function() {
|
380 | might_need_semicolon = true;
|
381 | };
|
382 |
|
383 | function force_semicolon() {
|
384 | if (might_need_semicolon) print(";");
|
385 | print(";");
|
386 | }
|
387 |
|
388 | function next_indent() {
|
389 | return indentation + options.indent_level;
|
390 | }
|
391 |
|
392 | function with_block(cont) {
|
393 | var ret;
|
394 | print("{");
|
395 | newline();
|
396 | with_indent(next_indent(), function() {
|
397 | ret = cont();
|
398 | });
|
399 | indent();
|
400 | print("}");
|
401 | return ret;
|
402 | }
|
403 |
|
404 | function with_parens(cont) {
|
405 | print("(");
|
406 | may_add_newline();
|
407 |
|
408 |
|
409 | var ret = cont();
|
410 | may_add_newline();
|
411 | print(")");
|
412 | return ret;
|
413 | }
|
414 |
|
415 | function with_square(cont) {
|
416 | print("[");
|
417 | may_add_newline();
|
418 |
|
419 | var ret = cont();
|
420 | may_add_newline();
|
421 | print("]");
|
422 | return ret;
|
423 | }
|
424 |
|
425 | function comma() {
|
426 | may_add_newline();
|
427 | print(",");
|
428 | may_add_newline();
|
429 | space();
|
430 | }
|
431 |
|
432 | function colon() {
|
433 | print(":");
|
434 | space();
|
435 | }
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436 |
|
437 | var add_mapping = mappings ? function(token, name) {
|
438 | mapping_token = token;
|
439 | mapping_name = name;
|
440 | } : noop;
|
441 |
|
442 | function get() {
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443 | if (!line_fixed) fix_line();
|
444 | return OUTPUT;
|
445 | }
|
446 |
|
447 | function has_nlb() {
|
448 | var index = OUTPUT.lastIndexOf("\n");
|
449 | return /^ *$/.test(OUTPUT.slice(index + 1));
|
450 | }
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451 |
|
452 | function prepend_comments(node) {
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453 | var self = this;
|
454 | var scan = node instanceof AST_Exit && node.value;
|
455 | var comments = dump(node);
|
456 | if (!comments) comments = [];
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457 |
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458 | if (scan) {
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459 | var tw = new TreeWalker(function(node) {
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460 | var parent = tw.parent();
|
461 | if (parent instanceof AST_Exit
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462 | || parent instanceof AST_Binary && parent.left === node
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463 | || parent.TYPE == "Call" && parent.expression === node
|
464 | || parent instanceof AST_Conditional && parent.condition === node
|
465 | || parent instanceof AST_Dot && parent.expression === node
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466 | || parent instanceof AST_Sequence && parent.expressions[0] === node
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467 | || parent instanceof AST_Sub && parent.expression === node
|
468 | || parent instanceof AST_UnaryPostfix) {
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469 | var before = dump(node);
|
470 | if (before) comments = comments.concat(before);
|
471 | } else {
|
472 | return true;
|
473 | }
|
474 | });
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475 | tw.push(node);
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476 | node.value.walk(tw);
|
477 | }
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478 |
|
479 | if (current_pos == 0) {
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480 | if (comments.length > 0 && options.shebang && comments[0].type == "comment5") {
|
481 | print("#!" + comments.shift().value + "\n");
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482 | indent();
|
483 | }
|
484 | var preamble = options.preamble;
|
485 | if (preamble) {
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486 | print(preamble.replace(/\r\n?|[\n\u2028\u2029]|\s*$/g, "\n"));
|
487 | }
|
488 | }
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489 |
|
490 | comments = comments.filter(comment_filter, node);
|
491 | if (comments.length == 0) return;
|
492 | var last_nlb = has_nlb();
|
493 | comments.forEach(function(c, i) {
|
494 | if (!last_nlb) {
|
495 | if (c.nlb) {
|
496 | print("\n");
|
497 | indent();
|
498 | last_nlb = true;
|
499 | } else if (i > 0) {
|
500 | space();
|
501 | }
|
502 | }
|
503 | if (/comment[134]/.test(c.type)) {
|
504 | print("//" + c.value.replace(/[@#]__PURE__/g, ' ') + "\n");
|
505 | indent();
|
506 | last_nlb = true;
|
507 | } else if (c.type == "comment2") {
|
508 | print("/*" + c.value.replace(/[@#]__PURE__/g, ' ') + "*/");
|
509 | last_nlb = false;
|
510 | }
|
511 | });
|
512 | if (!last_nlb) {
|
513 | if (node.start.nlb) {
|
514 | print("\n");
|
515 | indent();
|
516 | } else {
|
517 | space();
|
518 | }
|
519 | }
|
520 |
|
521 | function dump(node) {
|
522 | var token = node.start;
|
523 | if (!token) {
|
524 | if (!scan) return;
|
525 | node.start = token = new AST_Token();
|
526 | }
|
527 | var comments = token.comments_before;
|
528 | if (!comments) {
|
529 | if (!scan) return;
|
530 | token.comments_before = comments = [];
|
531 | }
|
532 | if (comments._dumped === self) return;
|
533 | comments._dumped = self;
|
534 | return comments;
|
535 | }
|
536 | }
|
537 |
|
538 | function append_comments(node, tail) {
|
539 | var self = this;
|
540 | var token = node.end;
|
541 | if (!token) return;
|
542 | var comments = token[tail ? "comments_before" : "comments_after"];
|
543 | if (!comments || comments._dumped === self) return;
|
544 | if (!(node instanceof AST_Statement || all(comments, function(c) {
|
545 | return !/comment[134]/.test(c.type);
|
546 | }))) return;
|
547 | comments._dumped = self;
|
548 | var insert = OUTPUT.length;
|
549 | comments.filter(comment_filter, node).forEach(function(c, i) {
|
550 | need_space = false;
|
551 | if (need_newline_indented) {
|
552 | print("\n");
|
553 | indent();
|
554 | need_newline_indented = false;
|
555 | } else if (c.nlb && (i > 0 || !has_nlb())) {
|
556 | print("\n");
|
557 | indent();
|
558 | } else if (i > 0 || !tail) {
|
559 | space();
|
560 | }
|
561 | if (/comment[134]/.test(c.type)) {
|
562 | print("//" + c.value.replace(/[@#]__PURE__/g, ' '));
|
563 | need_newline_indented = true;
|
564 | } else if (c.type == "comment2") {
|
565 | print("/*" + c.value.replace(/[@#]__PURE__/g, ' ') + "*/");
|
566 | need_space = true;
|
567 | }
|
568 | });
|
569 | if (OUTPUT.length > insert) newline_insert = insert;
|
570 | }
|
571 |
|
572 | var stack = [];
|
573 | return {
|
574 | get : get,
|
575 | toString : get,
|
576 | indent : indent,
|
577 | indentation : function() { return indentation },
|
578 | current_width : function() { return current_col - indentation },
|
579 | should_break : function() { return options.width && this.current_width() >= options.width },
|
580 | has_parens : function() { return has_parens },
|
581 | newline : newline,
|
582 | print : print,
|
583 | space : space,
|
584 | comma : comma,
|
585 | colon : colon,
|
586 | last : function() { return last },
|
587 | semicolon : semicolon,
|
588 | force_semicolon : force_semicolon,
|
589 | to_utf8 : to_utf8,
|
590 | print_name : function(name) { print(make_name(name)) },
|
591 | print_string : function(str, quote) { print(encode_string(str, quote)) },
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592 | next_indent : next_indent,
|
593 | with_indent : with_indent,
|
594 | with_block : with_block,
|
595 | with_parens : with_parens,
|
596 | with_square : with_square,
|
597 | add_mapping : add_mapping,
|
598 | option : function(opt) { return options[opt] },
|
599 | prepend_comments: readonly ? noop : prepend_comments,
|
600 | append_comments : readonly || comment_filter === return_false ? noop : append_comments,
|
601 | line : function() { return current_line },
|
602 | col : function() { return current_col },
|
603 | pos : function() { return current_pos },
|
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, generator = self._codegen;
|
633 | function doit() {
|
634 | stream.prepend_comments(self);
|
635 | self.add_source_map(stream);
|
636 | generator(self, stream);
|
637 | stream.append_comments(self);
|
638 | }
|
639 | stream.push_node(self);
|
640 | if (force_parens || self.needs_parens(stream)) {
|
641 | stream.with_parens(doit);
|
642 | } else {
|
643 | doit();
|
644 | }
|
645 | stream.pop_node();
|
646 | });
|
647 | AST_Node.DEFMETHOD("_print", AST_Node.prototype.print);
|
648 |
|
649 | AST_Node.DEFMETHOD("print_to_string", function(options) {
|
650 | var s = OutputStream(options);
|
651 | this.print(s);
|
652 | return s.get();
|
653 | });
|
654 |
|
655 |
|
656 |
|
657 | function PARENS(nodetype, func) {
|
658 | if (Array.isArray(nodetype)) {
|
659 | nodetype.forEach(function(nodetype) {
|
660 | PARENS(nodetype, func);
|
661 | });
|
662 | } else {
|
663 | nodetype.DEFMETHOD("needs_parens", func);
|
664 | }
|
665 | }
|
666 |
|
667 | PARENS(AST_Node, return_false);
|
668 |
|
669 |
|
670 |
|
671 | PARENS(AST_Function, function(output) {
|
672 | if (!output.has_parens() && first_in_statement(output)) return true;
|
673 | if (output.option('webkit')) {
|
674 | var p = output.parent();
|
675 | if (p instanceof AST_PropAccess && p.expression === this) return true;
|
676 | }
|
677 | if (output.option('wrap_iife')) {
|
678 | var p = output.parent();
|
679 | if (p instanceof AST_Call && p.expression === this) return true;
|
680 | }
|
681 | });
|
682 |
|
683 |
|
684 |
|
685 | PARENS(AST_Object, function(output) {
|
686 | return !output.has_parens() && first_in_statement(output);
|
687 | });
|
688 |
|
689 | PARENS(AST_Unary, function(output) {
|
690 | var p = output.parent();
|
691 | return p instanceof AST_PropAccess && p.expression === this
|
692 | || p instanceof AST_Call && p.expression === this;
|
693 | });
|
694 |
|
695 | PARENS(AST_Sequence, function(output) {
|
696 | var p = output.parent();
|
697 |
|
698 | return p instanceof AST_Call
|
699 |
|
700 | || p instanceof AST_Unary
|
701 |
|
702 | || p instanceof AST_Binary
|
703 |
|
704 | || p instanceof AST_VarDef
|
705 |
|
706 | || p instanceof AST_PropAccess && p.expression === this
|
707 |
|
708 | || p instanceof AST_Array
|
709 |
|
710 | || p instanceof AST_ObjectProperty
|
711 |
|
712 |
|
713 | || p instanceof AST_Conditional;
|
714 | });
|
715 |
|
716 | PARENS(AST_Binary, function(output) {
|
717 | var p = output.parent();
|
718 |
|
719 | if (p instanceof AST_Call && p.expression === this)
|
720 | return true;
|
721 |
|
722 | if (p instanceof AST_Unary)
|
723 | return true;
|
724 |
|
725 | if (p instanceof AST_PropAccess && p.expression === this)
|
726 | return true;
|
727 |
|
728 | if (p instanceof AST_Binary) {
|
729 | var po = p.operator, pp = PRECEDENCE[po];
|
730 | var so = this.operator, sp = PRECEDENCE[so];
|
731 | if (pp > sp
|
732 | || (pp == sp
|
733 | && this === p.right)) {
|
734 | return true;
|
735 | }
|
736 | }
|
737 | });
|
738 |
|
739 | PARENS(AST_PropAccess, function(output) {
|
740 | var p = output.parent();
|
741 | if (p instanceof AST_New && p.expression === this) {
|
742 |
|
743 |
|
744 |
|
745 |
|
746 |
|
747 |
|
748 | var parens = false;
|
749 | this.walk(new TreeWalker(function(node) {
|
750 | if (parens || node instanceof AST_Scope) return true;
|
751 | if (node instanceof AST_Call) {
|
752 | parens = true;
|
753 | return true;
|
754 | }
|
755 | }));
|
756 | return parens;
|
757 | }
|
758 | });
|
759 |
|
760 | PARENS(AST_Call, function(output) {
|
761 | var p = output.parent();
|
762 | if (p instanceof AST_New && p.expression === this) return true;
|
763 |
|
764 | if (output.option('webkit')) {
|
765 | var g = output.parent(1);
|
766 | return this.expression instanceof AST_Function
|
767 | && p instanceof AST_PropAccess
|
768 | && p.expression === this
|
769 | && g instanceof AST_Assign
|
770 | && g.left === p;
|
771 | }
|
772 | });
|
773 |
|
774 | PARENS(AST_New, function(output) {
|
775 | var p = output.parent();
|
776 | if (!need_constructor_parens(this, output)
|
777 | && (p instanceof AST_PropAccess
|
778 | || p instanceof AST_Call && p.expression === this))
|
779 | return true;
|
780 | });
|
781 |
|
782 | PARENS(AST_Number, function(output) {
|
783 | var p = output.parent();
|
784 | if (p instanceof AST_PropAccess && p.expression === this) {
|
785 | var value = this.value;
|
786 |
|
787 |
|
788 | if (value < 0 || /^0/.test(make_num(value))) {
|
789 | return true;
|
790 | }
|
791 | }
|
792 | });
|
793 |
|
794 | PARENS([ AST_Assign, AST_Conditional ], function(output) {
|
795 | var p = output.parent();
|
796 |
|
797 | if (p instanceof AST_Unary)
|
798 | return true;
|
799 |
|
800 | if (p instanceof AST_Binary && !(p instanceof AST_Assign))
|
801 | return true;
|
802 |
|
803 | if (p instanceof AST_Call && p.expression === this)
|
804 | return true;
|
805 |
|
806 | if (p instanceof AST_Conditional && p.condition === this)
|
807 | return true;
|
808 |
|
809 | if (p instanceof AST_PropAccess && p.expression === this)
|
810 | return true;
|
811 | });
|
812 |
|
813 |
|
814 |
|
815 | DEFPRINT(AST_Directive, function(self, output) {
|
816 | var quote = self.quote;
|
817 | var value = self.value;
|
818 | switch (output.option("quote_style")) {
|
819 | case 0:
|
820 | case 2:
|
821 | if (value.indexOf('"') == -1) quote = '"';
|
822 | break;
|
823 | case 1:
|
824 | if (value.indexOf("'") == -1) quote = "'";
|
825 | break;
|
826 | }
|
827 | output.print(quote + value + quote);
|
828 | output.semicolon();
|
829 | });
|
830 | DEFPRINT(AST_Debugger, function(self, output) {
|
831 | output.print("debugger");
|
832 | output.semicolon();
|
833 | });
|
834 |
|
835 |
|
836 |
|
837 | function display_body(body, is_toplevel, output, allow_directives) {
|
838 | var last = body.length - 1;
|
839 | var in_directive = allow_directives;
|
840 | var was_asm = use_asm;
|
841 | body.forEach(function(stmt, i) {
|
842 | if (in_directive) {
|
843 | if (stmt instanceof AST_Directive) {
|
844 | if (stmt.value == "use asm") use_asm = true;
|
845 | } else if (!(stmt instanceof AST_EmptyStatement)) {
|
846 | if (stmt instanceof AST_SimpleStatement && stmt.body instanceof AST_String) {
|
847 | output.force_semicolon();
|
848 | }
|
849 | in_directive = false;
|
850 | }
|
851 | }
|
852 | if (stmt instanceof AST_EmptyStatement) return;
|
853 | output.indent();
|
854 | stmt.print(output);
|
855 | if (i == last && is_toplevel) return;
|
856 | output.newline();
|
857 | if (is_toplevel) output.newline();
|
858 | });
|
859 | use_asm = was_asm;
|
860 | }
|
861 |
|
862 | AST_StatementWithBody.DEFMETHOD("_do_print_body", function(output) {
|
863 | force_statement(this.body, output);
|
864 | });
|
865 |
|
866 | DEFPRINT(AST_Statement, function(self, output) {
|
867 | self.body.print(output);
|
868 | output.semicolon();
|
869 | });
|
870 | DEFPRINT(AST_Toplevel, function(self, output) {
|
871 | display_body(self.body, true, output, true);
|
872 | output.print("");
|
873 | });
|
874 | DEFPRINT(AST_LabeledStatement, function(self, output) {
|
875 | self.label.print(output);
|
876 | output.colon();
|
877 | self.body.print(output);
|
878 | });
|
879 | DEFPRINT(AST_SimpleStatement, function(self, output) {
|
880 | self.body.print(output);
|
881 | output.semicolon();
|
882 | });
|
883 | function print_braced_empty(self, output) {
|
884 | output.print("{");
|
885 | output.with_indent(output.next_indent(), function() {
|
886 | output.append_comments(self, true);
|
887 | });
|
888 | output.print("}");
|
889 | }
|
890 | function print_braced(self, output, allow_directives) {
|
891 | if (self.body.length > 0) {
|
892 | output.with_block(function() {
|
893 | display_body(self.body, false, output, allow_directives);
|
894 | });
|
895 | } else print_braced_empty(self, output);
|
896 | }
|
897 | DEFPRINT(AST_BlockStatement, function(self, output) {
|
898 | print_braced(self, output);
|
899 | });
|
900 | DEFPRINT(AST_EmptyStatement, function(self, output) {
|
901 | output.semicolon();
|
902 | });
|
903 | DEFPRINT(AST_Do, function(self, output) {
|
904 | output.print("do");
|
905 | output.space();
|
906 | make_block(self.body, output);
|
907 | output.space();
|
908 | output.print("while");
|
909 | output.space();
|
910 | output.with_parens(function() {
|
911 | self.condition.print(output);
|
912 | });
|
913 | output.semicolon();
|
914 | });
|
915 | DEFPRINT(AST_While, function(self, output) {
|
916 | output.print("while");
|
917 | output.space();
|
918 | output.with_parens(function() {
|
919 | self.condition.print(output);
|
920 | });
|
921 | output.space();
|
922 | self._do_print_body(output);
|
923 | });
|
924 | DEFPRINT(AST_For, function(self, output) {
|
925 | output.print("for");
|
926 | output.space();
|
927 | output.with_parens(function() {
|
928 | if (self.init) {
|
929 | if (self.init instanceof AST_Definitions) {
|
930 | self.init.print(output);
|
931 | } else {
|
932 | parenthesize_for_noin(self.init, output, true);
|
933 | }
|
934 | output.print(";");
|
935 | output.space();
|
936 | } else {
|
937 | output.print(";");
|
938 | }
|
939 | if (self.condition) {
|
940 | self.condition.print(output);
|
941 | output.print(";");
|
942 | output.space();
|
943 | } else {
|
944 | output.print(";");
|
945 | }
|
946 | if (self.step) {
|
947 | self.step.print(output);
|
948 | }
|
949 | });
|
950 | output.space();
|
951 | self._do_print_body(output);
|
952 | });
|
953 | DEFPRINT(AST_ForIn, function(self, output) {
|
954 | output.print("for");
|
955 | output.space();
|
956 | output.with_parens(function() {
|
957 | self.init.print(output);
|
958 | output.space();
|
959 | output.print("in");
|
960 | output.space();
|
961 | self.object.print(output);
|
962 | });
|
963 | output.space();
|
964 | self._do_print_body(output);
|
965 | });
|
966 | DEFPRINT(AST_With, function(self, output) {
|
967 | output.print("with");
|
968 | output.space();
|
969 | output.with_parens(function() {
|
970 | self.expression.print(output);
|
971 | });
|
972 | output.space();
|
973 | self._do_print_body(output);
|
974 | });
|
975 |
|
976 |
|
977 | AST_Lambda.DEFMETHOD("_do_print", function(output, nokeyword) {
|
978 | var self = this;
|
979 | if (!nokeyword) {
|
980 | output.print("function");
|
981 | }
|
982 | if (self.name) {
|
983 | output.space();
|
984 | self.name.print(output);
|
985 | }
|
986 | output.with_parens(function() {
|
987 | self.argnames.forEach(function(arg, i) {
|
988 | if (i) output.comma();
|
989 | arg.print(output);
|
990 | });
|
991 | });
|
992 | output.space();
|
993 | print_braced(self, output, true);
|
994 | });
|
995 | DEFPRINT(AST_Lambda, function(self, output) {
|
996 | self._do_print(output);
|
997 | });
|
998 |
|
999 |
|
1000 | function print_jump(output, kind, target) {
|
1001 | output.print(kind);
|
1002 | if (target) {
|
1003 | output.space();
|
1004 | target.print(output);
|
1005 | }
|
1006 | output.semicolon();
|
1007 | }
|
1008 |
|
1009 | DEFPRINT(AST_Return, function(self, output) {
|
1010 | print_jump(output, "return", self.value);
|
1011 | });
|
1012 | DEFPRINT(AST_Throw, function(self, output) {
|
1013 | print_jump(output, "throw", self.value);
|
1014 | });
|
1015 | DEFPRINT(AST_Break, function(self, output) {
|
1016 | print_jump(output, "break", self.label);
|
1017 | });
|
1018 | DEFPRINT(AST_Continue, function(self, output) {
|
1019 | print_jump(output, "continue", self.label);
|
1020 | });
|
1021 |
|
1022 |
|
1023 | function make_then(self, output) {
|
1024 | var b = self.body;
|
1025 | if (output.option("braces")
|
1026 | || output.option("ie8") && b instanceof AST_Do)
|
1027 | return make_block(b, output);
|
1028 |
|
1029 |
|
1030 |
|
1031 |
|
1032 |
|
1033 |
|
1034 |
|
1035 | if (!b) return output.force_semicolon();
|
1036 | while (true) {
|
1037 | if (b instanceof AST_If) {
|
1038 | if (!b.alternative) {
|
1039 | make_block(self.body, output);
|
1040 | return;
|
1041 | }
|
1042 | b = b.alternative;
|
1043 | } else if (b instanceof AST_StatementWithBody) {
|
1044 | b = b.body;
|
1045 | } else break;
|
1046 | }
|
1047 | force_statement(self.body, output);
|
1048 | }
|
1049 | DEFPRINT(AST_If, function(self, output) {
|
1050 | output.print("if");
|
1051 | output.space();
|
1052 | output.with_parens(function() {
|
1053 | self.condition.print(output);
|
1054 | });
|
1055 | output.space();
|
1056 | if (self.alternative) {
|
1057 | make_then(self, output);
|
1058 | output.space();
|
1059 | output.print("else");
|
1060 | output.space();
|
1061 | if (self.alternative instanceof AST_If)
|
1062 | self.alternative.print(output);
|
1063 | else
|
1064 | force_statement(self.alternative, output);
|
1065 | } else {
|
1066 | self._do_print_body(output);
|
1067 | }
|
1068 | });
|
1069 |
|
1070 |
|
1071 | DEFPRINT(AST_Switch, function(self, output) {
|
1072 | output.print("switch");
|
1073 | output.space();
|
1074 | output.with_parens(function() {
|
1075 | self.expression.print(output);
|
1076 | });
|
1077 | output.space();
|
1078 | var last = self.body.length - 1;
|
1079 | if (last < 0) print_braced_empty(self, output);
|
1080 | else output.with_block(function() {
|
1081 | self.body.forEach(function(branch, i) {
|
1082 | output.indent(true);
|
1083 | branch.print(output);
|
1084 | if (i < last && branch.body.length > 0)
|
1085 | output.newline();
|
1086 | });
|
1087 | });
|
1088 | });
|
1089 | AST_SwitchBranch.DEFMETHOD("_do_print_body", function(output) {
|
1090 | output.newline();
|
1091 | this.body.forEach(function(stmt) {
|
1092 | output.indent();
|
1093 | stmt.print(output);
|
1094 | output.newline();
|
1095 | });
|
1096 | });
|
1097 | DEFPRINT(AST_Default, function(self, output) {
|
1098 | output.print("default:");
|
1099 | self._do_print_body(output);
|
1100 | });
|
1101 | DEFPRINT(AST_Case, function(self, output) {
|
1102 | output.print("case");
|
1103 | output.space();
|
1104 | self.expression.print(output);
|
1105 | output.print(":");
|
1106 | self._do_print_body(output);
|
1107 | });
|
1108 |
|
1109 |
|
1110 | DEFPRINT(AST_Try, function(self, output) {
|
1111 | output.print("try");
|
1112 | output.space();
|
1113 | print_braced(self, output);
|
1114 | if (self.bcatch) {
|
1115 | output.space();
|
1116 | self.bcatch.print(output);
|
1117 | }
|
1118 | if (self.bfinally) {
|
1119 | output.space();
|
1120 | self.bfinally.print(output);
|
1121 | }
|
1122 | });
|
1123 | DEFPRINT(AST_Catch, function(self, output) {
|
1124 | output.print("catch");
|
1125 | output.space();
|
1126 | output.with_parens(function() {
|
1127 | self.argname.print(output);
|
1128 | });
|
1129 | output.space();
|
1130 | print_braced(self, output);
|
1131 | });
|
1132 | DEFPRINT(AST_Finally, function(self, output) {
|
1133 | output.print("finally");
|
1134 | output.space();
|
1135 | print_braced(self, output);
|
1136 | });
|
1137 |
|
1138 | DEFPRINT(AST_Var, function(self, output) {
|
1139 | output.print("var");
|
1140 | output.space();
|
1141 | self.definitions.forEach(function(def, i) {
|
1142 | if (i) output.comma();
|
1143 | def.print(output);
|
1144 | });
|
1145 | var p = output.parent();
|
1146 | if (p && p.init !== self || !(p instanceof AST_For || p instanceof AST_ForIn)) output.semicolon();
|
1147 | });
|
1148 |
|
1149 | function parenthesize_for_noin(node, output, noin) {
|
1150 | var parens = false;
|
1151 |
|
1152 |
|
1153 | if (noin) node.walk(new TreeWalker(function(node) {
|
1154 | if (parens || node instanceof AST_Scope) return true;
|
1155 | if (node instanceof AST_Binary && node.operator == "in") {
|
1156 | parens = true;
|
1157 | return true;
|
1158 | }
|
1159 | }));
|
1160 | node.print(output, parens);
|
1161 | }
|
1162 |
|
1163 | DEFPRINT(AST_VarDef, function(self, output) {
|
1164 | self.name.print(output);
|
1165 | if (self.value) {
|
1166 | output.space();
|
1167 | output.print("=");
|
1168 | output.space();
|
1169 | var p = output.parent(1);
|
1170 | var noin = p instanceof AST_For || p instanceof AST_ForIn;
|
1171 | parenthesize_for_noin(self.value, output, noin);
|
1172 | }
|
1173 | });
|
1174 |
|
1175 |
|
1176 | DEFPRINT(AST_Call, function(self, output) {
|
1177 | self.expression.print(output);
|
1178 | if (self instanceof AST_New && !need_constructor_parens(self, output))
|
1179 | return;
|
1180 | if (self.expression instanceof AST_Call || self.expression instanceof AST_Lambda) {
|
1181 | output.add_mapping(self.start);
|
1182 | }
|
1183 | output.with_parens(function() {
|
1184 | self.args.forEach(function(expr, i) {
|
1185 | if (i) output.comma();
|
1186 | expr.print(output);
|
1187 | });
|
1188 | });
|
1189 | });
|
1190 | DEFPRINT(AST_New, function(self, output) {
|
1191 | output.print("new");
|
1192 | output.space();
|
1193 | AST_Call.prototype._codegen(self, output);
|
1194 | });
|
1195 | DEFPRINT(AST_Sequence, function(self, output) {
|
1196 | self.expressions.forEach(function(node, index) {
|
1197 | if (index > 0) {
|
1198 | output.comma();
|
1199 | if (output.should_break()) {
|
1200 | output.newline();
|
1201 | output.indent();
|
1202 | }
|
1203 | }
|
1204 | node.print(output);
|
1205 | });
|
1206 | });
|
1207 | DEFPRINT(AST_Dot, function(self, output) {
|
1208 | var expr = self.expression;
|
1209 | expr.print(output);
|
1210 | var prop = self.property;
|
1211 | if (output.option("ie8") && RESERVED_WORDS[prop]) {
|
1212 | output.print("[");
|
1213 | output.add_mapping(self.end);
|
1214 | output.print_string(prop);
|
1215 | output.print("]");
|
1216 | } else {
|
1217 | if (expr instanceof AST_Number && expr.value >= 0) {
|
1218 | if (!/[xa-f.)]/i.test(output.last())) {
|
1219 | output.print(".");
|
1220 | }
|
1221 | }
|
1222 | output.print(".");
|
1223 |
|
1224 | output.add_mapping(self.end);
|
1225 | output.print_name(prop);
|
1226 | }
|
1227 | });
|
1228 | DEFPRINT(AST_Sub, function(self, output) {
|
1229 | self.expression.print(output);
|
1230 | output.print("[");
|
1231 | self.property.print(output);
|
1232 | output.print("]");
|
1233 | });
|
1234 | DEFPRINT(AST_UnaryPrefix, function(self, output) {
|
1235 | var op = self.operator;
|
1236 | output.print(op);
|
1237 | if (/^[a-z]/i.test(op)
|
1238 | || (/[+-]$/.test(op)
|
1239 | && self.expression instanceof AST_UnaryPrefix
|
1240 | && /^[+-]/.test(self.expression.operator))) {
|
1241 | output.space();
|
1242 | }
|
1243 | self.expression.print(output);
|
1244 | });
|
1245 | DEFPRINT(AST_UnaryPostfix, function(self, output) {
|
1246 | self.expression.print(output);
|
1247 | output.print(self.operator);
|
1248 | });
|
1249 | DEFPRINT(AST_Binary, function(self, output) {
|
1250 | self.left.print(output);
|
1251 | output.space();
|
1252 | output.print(self.operator);
|
1253 | output.space();
|
1254 | self.right.print(output);
|
1255 | });
|
1256 | DEFPRINT(AST_Conditional, function(self, output) {
|
1257 | self.condition.print(output);
|
1258 | output.space();
|
1259 | output.print("?");
|
1260 | output.space();
|
1261 | self.consequent.print(output);
|
1262 | output.space();
|
1263 | output.colon();
|
1264 | self.alternative.print(output);
|
1265 | });
|
1266 |
|
1267 |
|
1268 | DEFPRINT(AST_Array, function(self, output) {
|
1269 | output.with_square(function() {
|
1270 | var a = self.elements, len = a.length;
|
1271 | if (len > 0) output.space();
|
1272 | a.forEach(function(exp, i) {
|
1273 | if (i) output.comma();
|
1274 | exp.print(output);
|
1275 |
|
1276 |
|
1277 |
|
1278 | if (i === len - 1 && exp instanceof AST_Hole)
|
1279 | output.comma();
|
1280 | });
|
1281 | if (len > 0) output.space();
|
1282 | });
|
1283 | });
|
1284 | DEFPRINT(AST_Object, function(self, output) {
|
1285 | if (self.properties.length > 0) output.with_block(function() {
|
1286 | self.properties.forEach(function(prop, i) {
|
1287 | if (i) {
|
1288 | output.print(",");
|
1289 | output.newline();
|
1290 | }
|
1291 | output.indent();
|
1292 | prop.print(output);
|
1293 | });
|
1294 | output.newline();
|
1295 | });
|
1296 | else print_braced_empty(self, output);
|
1297 | });
|
1298 |
|
1299 | function print_property_name(key, quote, output) {
|
1300 | if (output.option("quote_keys")) {
|
1301 | output.print_string(key);
|
1302 | } else if ("" + +key == key && key >= 0) {
|
1303 | output.print(make_num(key));
|
1304 | } else if (RESERVED_WORDS[key] ? !output.option("ie8") : is_identifier_string(key)) {
|
1305 | if (quote && output.option("keep_quoted_props")) {
|
1306 | output.print_string(key, quote);
|
1307 | } else {
|
1308 | output.print_name(key);
|
1309 | }
|
1310 | } else {
|
1311 | output.print_string(key, quote);
|
1312 | }
|
1313 | }
|
1314 |
|
1315 | DEFPRINT(AST_ObjectKeyVal, function(self, output) {
|
1316 | print_property_name(self.key, self.quote, output);
|
1317 | output.colon();
|
1318 | self.value.print(output);
|
1319 | });
|
1320 | AST_ObjectProperty.DEFMETHOD("_print_getter_setter", function(type, output) {
|
1321 | output.print(type);
|
1322 | output.space();
|
1323 | print_property_name(this.key.name, this.quote, output);
|
1324 | this.value._do_print(output, true);
|
1325 | });
|
1326 | DEFPRINT(AST_ObjectSetter, function(self, output) {
|
1327 | self._print_getter_setter("set", output);
|
1328 | });
|
1329 | DEFPRINT(AST_ObjectGetter, function(self, output) {
|
1330 | self._print_getter_setter("get", output);
|
1331 | });
|
1332 | DEFPRINT(AST_Symbol, function(self, output) {
|
1333 | var def = self.definition();
|
1334 | output.print_name(def && def.mangled_name || self.name);
|
1335 | });
|
1336 | DEFPRINT(AST_Hole, noop);
|
1337 | DEFPRINT(AST_This, function(self, output) {
|
1338 | output.print("this");
|
1339 | });
|
1340 | DEFPRINT(AST_Constant, function(self, output) {
|
1341 | output.print(self.value);
|
1342 | });
|
1343 | DEFPRINT(AST_String, function(self, output) {
|
1344 | output.print_string(self.value, self.quote);
|
1345 | });
|
1346 | DEFPRINT(AST_Number, function(self, output) {
|
1347 | if (use_asm && self.start && self.start.raw != null) {
|
1348 | output.print(self.start.raw);
|
1349 | } else {
|
1350 | output.print(make_num(self.value));
|
1351 | }
|
1352 | });
|
1353 |
|
1354 | DEFPRINT(AST_RegExp, function(self, output) {
|
1355 | var regexp = self.value;
|
1356 | var str = regexp.toString();
|
1357 | var end = str.lastIndexOf("/");
|
1358 | if (regexp.raw_source) {
|
1359 | str = "/" + regexp.raw_source + str.slice(end);
|
1360 | } else if (end == 1) {
|
1361 | str = "/(?:)" + str.slice(end);
|
1362 | } else if (str.indexOf("/", 1) < end) {
|
1363 | str = "/" + str.slice(1, end).replace(/\\\\|[^/]?\//g, function(match) {
|
1364 | return match[0] == "\\" ? match : match.slice(0, -1) + "\\/";
|
1365 | }) + str.slice(end);
|
1366 | }
|
1367 | output.print(output.to_utf8(str).replace(/\\(?:\0(?![0-9])|[^\0])/g, function(match) {
|
1368 | switch (match[1]) {
|
1369 | case "\n": return "\\n";
|
1370 | case "\r": return "\\r";
|
1371 | case "\t": return "\t";
|
1372 | case "\b": return "\b";
|
1373 | case "\f": return "\f";
|
1374 | case "\0": return "\0";
|
1375 | case "\x0B": return "\v";
|
1376 | case "\u2028": return "\\u2028";
|
1377 | case "\u2029": return "\\u2029";
|
1378 | default: return match;
|
1379 | }
|
1380 | }).replace(/[\n\r\u2028\u2029]/g, function(c) {
|
1381 | switch (c) {
|
1382 | case "\n": return "\\n";
|
1383 | case "\r": return "\\r";
|
1384 | case "\u2028": return "\\u2028";
|
1385 | case "\u2029": return "\\u2029";
|
1386 | }
|
1387 | }));
|
1388 | var p = output.parent();
|
1389 | if (p instanceof AST_Binary && /^in/.test(p.operator) && p.left === self)
|
1390 | output.print(" ");
|
1391 | });
|
1392 |
|
1393 | function force_statement(stat, output) {
|
1394 | if (output.option("braces")) {
|
1395 | make_block(stat, output);
|
1396 | } else {
|
1397 | if (!stat || stat instanceof AST_EmptyStatement)
|
1398 | output.force_semicolon();
|
1399 | else
|
1400 | stat.print(output);
|
1401 | }
|
1402 | }
|
1403 |
|
1404 |
|
1405 | function need_constructor_parens(self, output) {
|
1406 |
|
1407 | if (self.args.length > 0) return true;
|
1408 |
|
1409 | return output.option("beautify");
|
1410 | }
|
1411 |
|
1412 | function best_of(a) {
|
1413 | var best = a[0], len = best.length;
|
1414 | for (var i = 1; i < a.length; ++i) {
|
1415 | if (a[i].length < len) {
|
1416 | best = a[i];
|
1417 | len = best.length;
|
1418 | }
|
1419 | }
|
1420 | return best;
|
1421 | }
|
1422 |
|
1423 | function make_num(num) {
|
1424 | var str = num.toString(10).replace(/^0\./, ".").replace("e+", "e");
|
1425 | var candidates = [ str ];
|
1426 | if (Math.floor(num) === num) {
|
1427 | if (num < 0) {
|
1428 | candidates.push("-0x" + (-num).toString(16).toLowerCase());
|
1429 | } else {
|
1430 | candidates.push("0x" + num.toString(16).toLowerCase());
|
1431 | }
|
1432 | }
|
1433 | var match, len, digits;
|
1434 | if (match = /^\.0+/.exec(str)) {
|
1435 | len = match[0].length;
|
1436 | digits = str.slice(len);
|
1437 | candidates.push(digits + "e-" + (digits.length + len - 1));
|
1438 | } else if (match = /0+$/.exec(str)) {
|
1439 | len = match[0].length;
|
1440 | candidates.push(str.slice(0, -len) + "e" + len);
|
1441 | } else if (match = /^(\d)\.(\d+)e(-?\d+)$/.exec(str)) {
|
1442 | candidates.push(match[1] + match[2] + "e" + (match[3] - match[2].length));
|
1443 | }
|
1444 | return best_of(candidates);
|
1445 | }
|
1446 |
|
1447 | function make_block(stmt, output) {
|
1448 | if (!stmt || stmt instanceof AST_EmptyStatement)
|
1449 | output.print("{}");
|
1450 | else if (stmt instanceof AST_BlockStatement)
|
1451 | stmt.print(output);
|
1452 | else output.with_block(function() {
|
1453 | output.indent();
|
1454 | stmt.print(output);
|
1455 | output.newline();
|
1456 | });
|
1457 | }
|
1458 |
|
1459 |
|
1460 |
|
1461 | function DEFMAP(nodetype, generator) {
|
1462 | nodetype.forEach(function(nodetype) {
|
1463 | nodetype.DEFMETHOD("add_source_map", generator);
|
1464 | });
|
1465 | }
|
1466 |
|
1467 | DEFMAP([
|
1468 |
|
1469 |
|
1470 | AST_Node,
|
1471 |
|
1472 | AST_LabeledStatement,
|
1473 | AST_Toplevel,
|
1474 | ], noop);
|
1475 |
|
1476 |
|
1477 |
|
1478 | DEFMAP([
|
1479 | AST_Array,
|
1480 | AST_BlockStatement,
|
1481 | AST_Catch,
|
1482 | AST_Constant,
|
1483 | AST_Debugger,
|
1484 | AST_Definitions,
|
1485 | AST_Directive,
|
1486 | AST_Finally,
|
1487 | AST_Jump,
|
1488 | AST_Lambda,
|
1489 | AST_New,
|
1490 | AST_Object,
|
1491 | AST_StatementWithBody,
|
1492 | AST_Symbol,
|
1493 | AST_Switch,
|
1494 | AST_SwitchBranch,
|
1495 | AST_Try,
|
1496 | ], function(output) {
|
1497 | output.add_mapping(this.start);
|
1498 | });
|
1499 |
|
1500 | DEFMAP([
|
1501 | AST_ObjectGetter,
|
1502 | AST_ObjectSetter,
|
1503 | ], function(output) {
|
1504 | output.add_mapping(this.start, this.key.name);
|
1505 | });
|
1506 |
|
1507 | DEFMAP([ AST_ObjectProperty ], function(output) {
|
1508 | output.add_mapping(this.start, this.key);
|
1509 | });
|
1510 | })();
|