git.r.bdr.sh - rbdr/dotfiles/blob - atom/packages/ex-mode/node_modules/space-pen/node_modules/grim/node_modules/coffeestack/node_modules/coffee-script/lib/coffee-script/rewriter.js

   1 // Generated by CoffeeScript 1.8.0
   2 (function() {
   3   var BALANCED_PAIRS, CALL_CLOSERS, EXPRESSION_CLOSE, EXPRESSION_END, EXPRESSION_START, IMPLICIT_CALL, IMPLICIT_END, IMPLICIT_FUNC, IMPLICIT_UNSPACED_CALL, INVERSES, LINEBREAKS, SINGLE_CLOSERS, SINGLE_LINERS, generate, left, rite, _i, _len, _ref,
   4     __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; },
   5     __slice = [].slice;
   6
   7   generate = function(tag, value, origin) {
   8     var tok;
   9     tok = [tag, value];
  10     tok.generated = true;
  11     if (origin) {
  12       tok.origin = origin;
  13     }
  14     return tok;
  15   };
  16
  17   exports.Rewriter = (function() {
  18     function Rewriter() {}
  19
  20     Rewriter.prototype.rewrite = function(tokens) {
  21       this.tokens = tokens;
  22       this.removeLeadingNewlines();
  23       this.closeOpenCalls();
  24       this.closeOpenIndexes();
  25       this.normalizeLines();
  26       this.tagPostfixConditionals();
  27       this.addImplicitBracesAndParens();
  28       this.addLocationDataToGeneratedTokens();
  29       return this.tokens;
  30     };
  31
  32     Rewriter.prototype.scanTokens = function(block) {
  33       var i, token, tokens;
  34       tokens = this.tokens;
  35       i = 0;
  36       while (token = tokens[i]) {
  37         i += block.call(this, token, i, tokens);
  38       }
  39       return true;
  40     };
  41
  42     Rewriter.prototype.detectEnd = function(i, condition, action) {
  43       var levels, token, tokens, _ref, _ref1;
  44       tokens = this.tokens;
  45       levels = 0;
  46       while (token = tokens[i]) {
  47         if (levels === 0 && condition.call(this, token, i)) {
  48           return action.call(this, token, i);
  49         }
  50         if (!token || levels < 0) {
  51           return action.call(this, token, i - 1);
  52         }
  53         if (_ref = token[0], __indexOf.call(EXPRESSION_START, _ref) >= 0) {
  54           levels += 1;
  55         } else if (_ref1 = token[0], __indexOf.call(EXPRESSION_END, _ref1) >= 0) {
  56           levels -= 1;
  57         }
  58         i += 1;
  59       }
  60       return i - 1;
  61     };
  62
  63     Rewriter.prototype.removeLeadingNewlines = function() {
  64       var i, tag, _i, _len, _ref;
  65       _ref = this.tokens;
  66       for (i = _i = 0, _len = _ref.length; _i < _len; i = ++_i) {
  67         tag = _ref[i][0];
  68         if (tag !== 'TERMINATOR') {
  69           break;
  70         }
  71       }
  72       if (i) {
  73         return this.tokens.splice(0, i);
  74       }
  75     };
  76
  77     Rewriter.prototype.closeOpenCalls = function() {
  78       var action, condition;
  79       condition = function(token, i) {
  80         var _ref;
  81         return ((_ref = token[0]) === ')' || _ref === 'CALL_END') || token[0] === 'OUTDENT' && this.tag(i - 1) === ')';
  82       };
  83       action = function(token, i) {
  84         return this.tokens[token[0] === 'OUTDENT' ? i - 1 : i][0] = 'CALL_END';
  85       };
  86       return this.scanTokens(function(token, i) {
  87         if (token[0] === 'CALL_START') {
  88           this.detectEnd(i + 1, condition, action);
  89         }
  90         return 1;
  91       });
  92     };
  93
  94     Rewriter.prototype.closeOpenIndexes = function() {
  95       var action, condition;
  96       condition = function(token, i) {
  97         var _ref;
  98         return (_ref = token[0]) === ']' || _ref === 'INDEX_END';
  99       };
 100       action = function(token, i) {
 101         return token[0] = 'INDEX_END';
 102       };
 103       return this.scanTokens(function(token, i) {
 104         if (token[0] === 'INDEX_START') {
 105           this.detectEnd(i + 1, condition, action);
 106         }
 107         return 1;
 108       });
 109     };
 110
 111     Rewriter.prototype.matchTags = function() {
 112       var fuzz, i, j, pattern, _i, _ref, _ref1;
 113       i = arguments[0], pattern = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
 114       fuzz = 0;
 115       for (j = _i = 0, _ref = pattern.length; 0 <= _ref ? _i < _ref : _i > _ref; j = 0 <= _ref ? ++_i : --_i) {
 116         while (this.tag(i + j + fuzz) === 'HERECOMMENT') {
 117           fuzz += 2;
 118         }
 119         if (pattern[j] == null) {
 120           continue;
 121         }
 122         if (typeof pattern[j] === 'string') {
 123           pattern[j] = [pattern[j]];
 124         }
 125         if (_ref1 = this.tag(i + j + fuzz), __indexOf.call(pattern[j], _ref1) < 0) {
 126           return false;
 127         }
 128       }
 129       return true;
 130     };
 131
 132     Rewriter.prototype.looksObjectish = function(j) {
 133       return this.matchTags(j, '@', null, ':') || this.matchTags(j, null, ':');
 134     };
 135
 136     Rewriter.prototype.findTagsBackwards = function(i, tags) {
 137       var backStack, _ref, _ref1, _ref2, _ref3, _ref4, _ref5;
 138       backStack = [];
 139       while (i >= 0 && (backStack.length || (_ref2 = this.tag(i), __indexOf.call(tags, _ref2) < 0) && ((_ref3 = this.tag(i), __indexOf.call(EXPRESSION_START, _ref3) < 0) || this.tokens[i].generated) && (_ref4 = this.tag(i), __indexOf.call(LINEBREAKS, _ref4) < 0))) {
 140         if (_ref = this.tag(i), __indexOf.call(EXPRESSION_END, _ref) >= 0) {
 141           backStack.push(this.tag(i));
 142         }
 143         if ((_ref1 = this.tag(i), __indexOf.call(EXPRESSION_START, _ref1) >= 0) && backStack.length) {
 144           backStack.pop();
 145         }
 146         i -= 1;
 147       }
 148       return _ref5 = this.tag(i), __indexOf.call(tags, _ref5) >= 0;
 149     };
 150
 151     Rewriter.prototype.addImplicitBracesAndParens = function() {
 152       var stack;
 153       stack = [];
 154       return this.scanTokens(function(token, i, tokens) {
 155         var endImplicitCall, endImplicitObject, forward, inImplicit, inImplicitCall, inImplicitControl, inImplicitObject, newLine, nextTag, offset, prevTag, prevToken, s, sameLine, stackIdx, stackTag, stackTop, startIdx, startImplicitCall, startImplicitObject, startsLine, tag, _ref, _ref1, _ref2, _ref3, _ref4, _ref5;
 156         tag = token[0];
 157         prevTag = (prevToken = i > 0 ? tokens[i - 1] : [])[0];
 158         nextTag = (i < tokens.length - 1 ? tokens[i + 1] : [])[0];
 159         stackTop = function() {
 160           return stack[stack.length - 1];
 161         };
 162         startIdx = i;
 163         forward = function(n) {
 164           return i - startIdx + n;
 165         };
 166         inImplicit = function() {
 167           var _ref, _ref1;
 168           return (_ref = stackTop()) != null ? (_ref1 = _ref[2]) != null ? _ref1.ours : void 0 : void 0;
 169         };
 170         inImplicitCall = function() {
 171           var _ref;
 172           return inImplicit() && ((_ref = stackTop()) != null ? _ref[0] : void 0) === '(';
 173         };
 174         inImplicitObject = function() {
 175           var _ref;
 176           return inImplicit() && ((_ref = stackTop()) != null ? _ref[0] : void 0) === '{';
 177         };
 178         inImplicitControl = function() {
 179           var _ref;
 180           return inImplicit && ((_ref = stackTop()) != null ? _ref[0] : void 0) === 'CONTROL';
 181         };
 182         startImplicitCall = function(j) {
 183           var idx;
 184           idx = j != null ? j : i;
 185           stack.push([
 186             '(', idx, {
 187               ours: true
 188             }
 189           ]);
 190           tokens.splice(idx, 0, generate('CALL_START', '('));
 191           if (j == null) {
 192             return i += 1;
 193           }
 194         };
 195         endImplicitCall = function() {
 196           stack.pop();
 197           tokens.splice(i, 0, generate('CALL_END', ')'));
 198           return i += 1;
 199         };
 200         startImplicitObject = function(j, startsLine) {
 201           var idx;
 202           if (startsLine == null) {
 203             startsLine = true;
 204           }
 205           idx = j != null ? j : i;
 206           stack.push([
 207             '{', idx, {
 208               sameLine: true,
 209               startsLine: startsLine,
 210               ours: true
 211             }
 212           ]);
 213           tokens.splice(idx, 0, generate('{', generate(new String('{')), token));
 214           if (j == null) {
 215             return i += 1;
 216           }
 217         };
 218         endImplicitObject = function(j) {
 219           j = j != null ? j : i;
 220           stack.pop();
 221           tokens.splice(j, 0, generate('}', '}', token));
 222           return i += 1;
 223         };
 224         if (inImplicitCall() && (tag === 'IF' || tag === 'TRY' || tag === 'FINALLY' || tag === 'CATCH' || tag === 'CLASS' || tag === 'SWITCH')) {
 225           stack.push([
 226             'CONTROL', i, {
 227               ours: true
 228             }
 229           ]);
 230           return forward(1);
 231         }
 232         if (tag === 'INDENT' && inImplicit()) {
 233           if (prevTag !== '=>' && prevTag !== '->' && prevTag !== '[' && prevTag !== '(' && prevTag !== ',' && prevTag !== '{' && prevTag !== 'TRY' && prevTag !== 'ELSE' && prevTag !== '=') {
 234             while (inImplicitCall()) {
 235               endImplicitCall();
 236             }
 237           }
 238           if (inImplicitControl()) {
 239             stack.pop();
 240           }
 241           stack.push([tag, i]);
 242           return forward(1);
 243         }
 244         if (__indexOf.call(EXPRESSION_START, tag) >= 0) {
 245           stack.push([tag, i]);
 246           return forward(1);
 247         }
 248         if (__indexOf.call(EXPRESSION_END, tag) >= 0) {
 249           while (inImplicit()) {
 250             if (inImplicitCall()) {
 251               endImplicitCall();
 252             } else if (inImplicitObject()) {
 253               endImplicitObject();
 254             } else {
 255               stack.pop();
 256             }
 257           }
 258           stack.pop();
 259         }
 260         if ((__indexOf.call(IMPLICIT_FUNC, tag) >= 0 && token.spaced && !token.stringEnd || tag === '?' && i > 0 && !tokens[i - 1].spaced) && (__indexOf.call(IMPLICIT_CALL, nextTag) >= 0 || __indexOf.call(IMPLICIT_UNSPACED_CALL, nextTag) >= 0 && !((_ref = tokens[i + 1]) != null ? _ref.spaced : void 0) && !((_ref1 = tokens[i + 1]) != null ? _ref1.newLine : void 0))) {
 261           if (tag === '?') {
 262             tag = token[0] = 'FUNC_EXIST';
 263           }
 264           startImplicitCall(i + 1);
 265           return forward(2);
 266         }
 267         if (__indexOf.call(IMPLICIT_FUNC, tag) >= 0 && this.matchTags(i + 1, 'INDENT', null, ':') && !this.findTagsBackwards(i, ['CLASS', 'EXTENDS', 'IF', 'CATCH', 'SWITCH', 'LEADING_WHEN', 'FOR', 'WHILE', 'UNTIL'])) {
 268           startImplicitCall(i + 1);
 269           stack.push(['INDENT', i + 2]);
 270           return forward(3);
 271         }
 272         if (tag === ':') {
 273           if (this.tag(i - 2) === '@') {
 274             s = i - 2;
 275           } else {
 276             s = i - 1;
 277           }
 278           while (this.tag(s - 2) === 'HERECOMMENT') {
 279             s -= 2;
 280           }
 281           this.insideForDeclaration = nextTag === 'FOR';
 282           startsLine = s === 0 || (_ref2 = this.tag(s - 1), __indexOf.call(LINEBREAKS, _ref2) >= 0) || tokens[s - 1].newLine;
 283           if (stackTop()) {
 284             _ref3 = stackTop(), stackTag = _ref3[0], stackIdx = _ref3[1];
 285             if ((stackTag === '{' || stackTag === 'INDENT' && this.tag(stackIdx - 1) === '{') && (startsLine || this.tag(s - 1) === ',' || this.tag(s - 1) === '{')) {
 286               return forward(1);
 287             }
 288           }
 289           startImplicitObject(s, !!startsLine);
 290           return forward(2);
 291         }
 292         if (inImplicitObject() && __indexOf.call(LINEBREAKS, tag) >= 0) {
 293           stackTop()[2].sameLine = false;
 294         }
 295         newLine = prevTag === 'OUTDENT' || prevToken.newLine;
 296         if (__indexOf.call(IMPLICIT_END, tag) >= 0 || __indexOf.call(CALL_CLOSERS, tag) >= 0 && newLine) {
 297           while (inImplicit()) {
 298             _ref4 = stackTop(), stackTag = _ref4[0], stackIdx = _ref4[1], (_ref5 = _ref4[2], sameLine = _ref5.sameLine, startsLine = _ref5.startsLine);
 299             if (inImplicitCall() && prevTag !== ',') {
 300               endImplicitCall();
 301             } else if (inImplicitObject() && !this.insideForDeclaration && sameLine && tag !== 'TERMINATOR' && prevTag !== ':' && endImplicitObject()) {
 302
 303             } else if (inImplicitObject() && tag === 'TERMINATOR' && prevTag !== ',' && !(startsLine && this.looksObjectish(i + 1))) {
 304               endImplicitObject();
 305             } else {
 306               break;
 307             }
 308           }
 309         }
 310         if (tag === ',' && !this.looksObjectish(i + 1) && inImplicitObject() && !this.insideForDeclaration && (nextTag !== 'TERMINATOR' || !this.looksObjectish(i + 2))) {
 311           offset = nextTag === 'OUTDENT' ? 1 : 0;
 312           while (inImplicitObject()) {
 313             endImplicitObject(i + offset);
 314           }
 315         }
 316         return forward(1);
 317       });
 318     };
 319
 320     Rewriter.prototype.addLocationDataToGeneratedTokens = function() {
 321       return this.scanTokens(function(token, i, tokens) {
 322         var column, line, nextLocation, prevLocation, _ref, _ref1;
 323         if (token[2]) {
 324           return 1;
 325         }
 326         if (!(token.generated || token.explicit)) {
 327           return 1;
 328         }
 329         if (token[0] === '{' && (nextLocation = (_ref = tokens[i + 1]) != null ? _ref[2] : void 0)) {
 330           line = nextLocation.first_line, column = nextLocation.first_column;
 331         } else if (prevLocation = (_ref1 = tokens[i - 1]) != null ? _ref1[2] : void 0) {
 332           line = prevLocation.last_line, column = prevLocation.last_column;
 333         } else {
 334           line = column = 0;
 335         }
 336         token[2] = {
 337           first_line: line,
 338           first_column: column,
 339           last_line: line,
 340           last_column: column
 341         };
 342         return 1;
 343       });
 344     };
 345
 346     Rewriter.prototype.normalizeLines = function() {
 347       var action, condition, indent, outdent, starter;
 348       starter = indent = outdent = null;
 349       condition = function(token, i) {
 350         var _ref, _ref1, _ref2, _ref3;
 351         return token[1] !== ';' && (_ref = token[0], __indexOf.call(SINGLE_CLOSERS, _ref) >= 0) && !(token[0] === 'TERMINATOR' && (_ref1 = this.tag(i + 1), __indexOf.call(EXPRESSION_CLOSE, _ref1) >= 0)) && !(token[0] === 'ELSE' && starter !== 'THEN') && !(((_ref2 = token[0]) === 'CATCH' || _ref2 === 'FINALLY') && (starter === '->' || starter === '=>')) || (_ref3 = token[0], __indexOf.call(CALL_CLOSERS, _ref3) >= 0) && this.tokens[i - 1].newLine;
 352       };
 353       action = function(token, i) {
 354         return this.tokens.splice((this.tag(i - 1) === ',' ? i - 1 : i), 0, outdent);
 355       };
 356       return this.scanTokens(function(token, i, tokens) {
 357         var j, tag, _i, _ref, _ref1, _ref2;
 358         tag = token[0];
 359         if (tag === 'TERMINATOR') {
 360           if (this.tag(i + 1) === 'ELSE' && this.tag(i - 1) !== 'OUTDENT') {
 361             tokens.splice.apply(tokens, [i, 1].concat(__slice.call(this.indentation())));
 362             return 1;
 363           }
 364           if (_ref = this.tag(i + 1), __indexOf.call(EXPRESSION_CLOSE, _ref) >= 0) {
 365             tokens.splice(i, 1);
 366             return 0;
 367           }
 368         }
 369         if (tag === 'CATCH') {
 370           for (j = _i = 1; _i <= 2; j = ++_i) {
 371             if (!((_ref1 = this.tag(i + j)) === 'OUTDENT' || _ref1 === 'TERMINATOR' || _ref1 === 'FINALLY')) {
 372               continue;
 373             }
 374             tokens.splice.apply(tokens, [i + j, 0].concat(__slice.call(this.indentation())));
 375             return 2 + j;
 376           }
 377         }
 378         if (__indexOf.call(SINGLE_LINERS, tag) >= 0 && this.tag(i + 1) !== 'INDENT' && !(tag === 'ELSE' && this.tag(i + 1) === 'IF')) {
 379           starter = tag;
 380           _ref2 = this.indentation(tokens[i]), indent = _ref2[0], outdent = _ref2[1];
 381           if (starter === 'THEN') {
 382             indent.fromThen = true;
 383           }
 384           tokens.splice(i + 1, 0, indent);
 385           this.detectEnd(i + 2, condition, action);
 386           if (tag === 'THEN') {
 387             tokens.splice(i, 1);
 388           }
 389           return 1;
 390         }
 391         return 1;
 392       });
 393     };
 394
 395     Rewriter.prototype.tagPostfixConditionals = function() {
 396       var action, condition, original;
 397       original = null;
 398       condition = function(token, i) {
 399         var prevTag, tag;
 400         tag = token[0];
 401         prevTag = this.tokens[i - 1][0];
 402         return tag === 'TERMINATOR' || (tag === 'INDENT' && __indexOf.call(SINGLE_LINERS, prevTag) < 0);
 403       };
 404       action = function(token, i) {
 405         if (token[0] !== 'INDENT' || (token.generated && !token.fromThen)) {
 406           return original[0] = 'POST_' + original[0];
 407         }
 408       };
 409       return this.scanTokens(function(token, i) {
 410         if (token[0] !== 'IF') {
 411           return 1;
 412         }
 413         original = token;
 414         this.detectEnd(i + 1, condition, action);
 415         return 1;
 416       });
 417     };
 418
 419     Rewriter.prototype.indentation = function(origin) {
 420       var indent, outdent;
 421       indent = ['INDENT', 2];
 422       outdent = ['OUTDENT', 2];
 423       if (origin) {
 424         indent.generated = outdent.generated = true;
 425         indent.origin = outdent.origin = origin;
 426       } else {
 427         indent.explicit = outdent.explicit = true;
 428       }
 429       return [indent, outdent];
 430     };
 431
 432     Rewriter.prototype.generate = generate;
 433
 434     Rewriter.prototype.tag = function(i) {
 435       var _ref;
 436       return (_ref = this.tokens[i]) != null ? _ref[0] : void 0;
 437     };
 438
 439     return Rewriter;
 440
 441   })();
 442
 443   BALANCED_PAIRS = [['(', ')'], ['[', ']'], ['{', '}'], ['INDENT', 'OUTDENT'], ['CALL_START', 'CALL_END'], ['PARAM_START', 'PARAM_END'], ['INDEX_START', 'INDEX_END']];
 444
 445   exports.INVERSES = INVERSES = {};
 446
 447   EXPRESSION_START = [];
 448
 449   EXPRESSION_END = [];
 450
 451   for (_i = 0, _len = BALANCED_PAIRS.length; _i < _len; _i++) {
 452     _ref = BALANCED_PAIRS[_i], left = _ref[0], rite = _ref[1];
 453     EXPRESSION_START.push(INVERSES[rite] = left);
 454     EXPRESSION_END.push(INVERSES[left] = rite);
 455   }
 456
 457   EXPRESSION_CLOSE = ['CATCH', 'THEN', 'ELSE', 'FINALLY'].concat(EXPRESSION_END);
 458
 459   IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', '@', 'THIS'];
 460
 461   IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'CLASS', 'IF', 'TRY', 'SWITCH', 'THIS', 'BOOL', 'NULL', 'UNDEFINED', 'UNARY', 'UNARY_MATH', 'SUPER', 'THROW', '@', '->', '=>', '[', '(', '{', '--', '++'];
 462
 463   IMPLICIT_UNSPACED_CALL = ['+', '-'];
 464
 465   IMPLICIT_END = ['POST_IF', 'FOR', 'WHILE', 'UNTIL', 'WHEN', 'BY', 'LOOP', 'TERMINATOR'];
 466
 467   SINGLE_LINERS = ['ELSE', '->', '=>', 'TRY', 'FINALLY', 'THEN'];
 468
 469   SINGLE_CLOSERS = ['TERMINATOR', 'CATCH', 'FINALLY', 'ELSE', 'OUTDENT', 'LEADING_WHEN'];
 470
 471   LINEBREAKS = ['TERMINATOR', 'INDENT', 'OUTDENT'];
 472
 473   CALL_CLOSERS = ['.', '?.', '::', '?::'];
 474
 475 }).call(this);