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/nodes.js

   1 // Generated by CoffeeScript 1.8.0
   2 (function() {
   3   var Access, Arr, Assign, Base, Block, Call, Class, Code, CodeFragment, Comment, Existence, Expansion, Extends, For, HEXNUM, IDENTIFIER, IDENTIFIER_STR, IS_REGEX, IS_STRING, If, In, Index, LEVEL_ACCESS, LEVEL_COND, LEVEL_LIST, LEVEL_OP, LEVEL_PAREN, LEVEL_TOP, Literal, METHOD_DEF, NEGATE, NO, NUMBER, Obj, Op, Param, Parens, RESERVED, Range, Return, SIMPLENUM, STRICT_PROSCRIBED, Scope, Slice, Splat, Switch, TAB, THIS, Throw, Try, UTILITIES, Value, While, YES, addLocationDataFn, compact, del, ends, extend, flatten, fragmentsToText, isLiteralArguments, isLiteralThis, last, locationDataToString, merge, multident, parseNum, some, starts, throwSyntaxError, unfoldSoak, utility, _ref, _ref1,
   4     __hasProp = {}.hasOwnProperty,
   5     __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
   6     __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; },
   7     __slice = [].slice;
   8
   9   Error.stackTraceLimit = Infinity;
  10
  11   Scope = require('./scope').Scope;
  12
  13   _ref = require('./lexer'), RESERVED = _ref.RESERVED, STRICT_PROSCRIBED = _ref.STRICT_PROSCRIBED;
  14
  15   _ref1 = require('./helpers'), compact = _ref1.compact, flatten = _ref1.flatten, extend = _ref1.extend, merge = _ref1.merge, del = _ref1.del, starts = _ref1.starts, ends = _ref1.ends, last = _ref1.last, some = _ref1.some, addLocationDataFn = _ref1.addLocationDataFn, locationDataToString = _ref1.locationDataToString, throwSyntaxError = _ref1.throwSyntaxError;
  16
  17   exports.extend = extend;
  18
  19   exports.addLocationDataFn = addLocationDataFn;
  20
  21   YES = function() {
  22     return true;
  23   };
  24
  25   NO = function() {
  26     return false;
  27   };
  28
  29   THIS = function() {
  30     return this;
  31   };
  32
  33   NEGATE = function() {
  34     this.negated = !this.negated;
  35     return this;
  36   };
  37
  38   exports.CodeFragment = CodeFragment = (function() {
  39     function CodeFragment(parent, code) {
  40       var _ref2;
  41       this.code = "" + code;
  42       this.locationData = parent != null ? parent.locationData : void 0;
  43       this.type = (parent != null ? (_ref2 = parent.constructor) != null ? _ref2.name : void 0 : void 0) || 'unknown';
  44     }
  45
  46     CodeFragment.prototype.toString = function() {
  47       return "" + this.code + (this.locationData ? ": " + locationDataToString(this.locationData) : '');
  48     };
  49
  50     return CodeFragment;
  51
  52   })();
  53
  54   fragmentsToText = function(fragments) {
  55     var fragment;
  56     return ((function() {
  57       var _i, _len, _results;
  58       _results = [];
  59       for (_i = 0, _len = fragments.length; _i < _len; _i++) {
  60         fragment = fragments[_i];
  61         _results.push(fragment.code);
  62       }
  63       return _results;
  64     })()).join('');
  65   };
  66
  67   exports.Base = Base = (function() {
  68     function Base() {}
  69
  70     Base.prototype.compile = function(o, lvl) {
  71       return fragmentsToText(this.compileToFragments(o, lvl));
  72     };
  73
  74     Base.prototype.compileToFragments = function(o, lvl) {
  75       var node;
  76       o = extend({}, o);
  77       if (lvl) {
  78         o.level = lvl;
  79       }
  80       node = this.unfoldSoak(o) || this;
  81       node.tab = o.indent;
  82       if (o.level === LEVEL_TOP || !node.isStatement(o)) {
  83         return node.compileNode(o);
  84       } else {
  85         return node.compileClosure(o);
  86       }
  87     };
  88
  89     Base.prototype.compileClosure = function(o) {
  90       var args, argumentsNode, func, jumpNode, meth;
  91       if (jumpNode = this.jumps()) {
  92         jumpNode.error('cannot use a pure statement in an expression');
  93       }
  94       o.sharedScope = true;
  95       func = new Code([], Block.wrap([this]));
  96       args = [];
  97       if ((argumentsNode = this.contains(isLiteralArguments)) || this.contains(isLiteralThis)) {
  98         args = [new Literal('this')];
  99         if (argumentsNode) {
 100           meth = 'apply';
 101           args.push(new Literal('arguments'));
 102         } else {
 103           meth = 'call';
 104         }
 105         func = new Value(func, [new Access(new Literal(meth))]);
 106       }
 107       return (new Call(func, args)).compileNode(o);
 108     };
 109
 110     Base.prototype.cache = function(o, level, reused) {
 111       var ref, sub;
 112       if (!this.isComplex()) {
 113         ref = level ? this.compileToFragments(o, level) : this;
 114         return [ref, ref];
 115       } else {
 116         ref = new Literal(reused || o.scope.freeVariable('ref'));
 117         sub = new Assign(ref, this);
 118         if (level) {
 119           return [sub.compileToFragments(o, level), [this.makeCode(ref.value)]];
 120         } else {
 121           return [sub, ref];
 122         }
 123       }
 124     };
 125
 126     Base.prototype.cacheToCodeFragments = function(cacheValues) {
 127       return [fragmentsToText(cacheValues[0]), fragmentsToText(cacheValues[1])];
 128     };
 129
 130     Base.prototype.makeReturn = function(res) {
 131       var me;
 132       me = this.unwrapAll();
 133       if (res) {
 134         return new Call(new Literal("" + res + ".push"), [me]);
 135       } else {
 136         return new Return(me);
 137       }
 138     };
 139
 140     Base.prototype.contains = function(pred) {
 141       var node;
 142       node = void 0;
 143       this.traverseChildren(false, function(n) {
 144         if (pred(n)) {
 145           node = n;
 146           return false;
 147         }
 148       });
 149       return node;
 150     };
 151
 152     Base.prototype.lastNonComment = function(list) {
 153       var i;
 154       i = list.length;
 155       while (i--) {
 156         if (!(list[i] instanceof Comment)) {
 157           return list[i];
 158         }
 159       }
 160       return null;
 161     };
 162
 163     Base.prototype.toString = function(idt, name) {
 164       var tree;
 165       if (idt == null) {
 166         idt = '';
 167       }
 168       if (name == null) {
 169         name = this.constructor.name;
 170       }
 171       tree = '\n' + idt + name;
 172       if (this.soak) {
 173         tree += '?';
 174       }
 175       this.eachChild(function(node) {
 176         return tree += node.toString(idt + TAB);
 177       });
 178       return tree;
 179     };
 180
 181     Base.prototype.eachChild = function(func) {
 182       var attr, child, _i, _j, _len, _len1, _ref2, _ref3;
 183       if (!this.children) {
 184         return this;
 185       }
 186       _ref2 = this.children;
 187       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
 188         attr = _ref2[_i];
 189         if (this[attr]) {
 190           _ref3 = flatten([this[attr]]);
 191           for (_j = 0, _len1 = _ref3.length; _j < _len1; _j++) {
 192             child = _ref3[_j];
 193             if (func(child) === false) {
 194               return this;
 195             }
 196           }
 197         }
 198       }
 199       return this;
 200     };
 201
 202     Base.prototype.traverseChildren = function(crossScope, func) {
 203       return this.eachChild(function(child) {
 204         var recur;
 205         recur = func(child);
 206         if (recur !== false) {
 207           return child.traverseChildren(crossScope, func);
 208         }
 209       });
 210     };
 211
 212     Base.prototype.invert = function() {
 213       return new Op('!', this);
 214     };
 215
 216     Base.prototype.unwrapAll = function() {
 217       var node;
 218       node = this;
 219       while (node !== (node = node.unwrap())) {
 220         continue;
 221       }
 222       return node;
 223     };
 224
 225     Base.prototype.children = [];
 226
 227     Base.prototype.isStatement = NO;
 228
 229     Base.prototype.jumps = NO;
 230
 231     Base.prototype.isComplex = YES;
 232
 233     Base.prototype.isChainable = NO;
 234
 235     Base.prototype.isAssignable = NO;
 236
 237     Base.prototype.unwrap = THIS;
 238
 239     Base.prototype.unfoldSoak = NO;
 240
 241     Base.prototype.assigns = NO;
 242
 243     Base.prototype.updateLocationDataIfMissing = function(locationData) {
 244       if (this.locationData) {
 245         return this;
 246       }
 247       this.locationData = locationData;
 248       return this.eachChild(function(child) {
 249         return child.updateLocationDataIfMissing(locationData);
 250       });
 251     };
 252
 253     Base.prototype.error = function(message) {
 254       return throwSyntaxError(message, this.locationData);
 255     };
 256
 257     Base.prototype.makeCode = function(code) {
 258       return new CodeFragment(this, code);
 259     };
 260
 261     Base.prototype.wrapInBraces = function(fragments) {
 262       return [].concat(this.makeCode('('), fragments, this.makeCode(')'));
 263     };
 264
 265     Base.prototype.joinFragmentArrays = function(fragmentsList, joinStr) {
 266       var answer, fragments, i, _i, _len;
 267       answer = [];
 268       for (i = _i = 0, _len = fragmentsList.length; _i < _len; i = ++_i) {
 269         fragments = fragmentsList[i];
 270         if (i) {
 271           answer.push(this.makeCode(joinStr));
 272         }
 273         answer = answer.concat(fragments);
 274       }
 275       return answer;
 276     };
 277
 278     return Base;
 279
 280   })();
 281
 282   exports.Block = Block = (function(_super) {
 283     __extends(Block, _super);
 284
 285     function Block(nodes) {
 286       this.expressions = compact(flatten(nodes || []));
 287     }
 288
 289     Block.prototype.children = ['expressions'];
 290
 291     Block.prototype.push = function(node) {
 292       this.expressions.push(node);
 293       return this;
 294     };
 295
 296     Block.prototype.pop = function() {
 297       return this.expressions.pop();
 298     };
 299
 300     Block.prototype.unshift = function(node) {
 301       this.expressions.unshift(node);
 302       return this;
 303     };
 304
 305     Block.prototype.unwrap = function() {
 306       if (this.expressions.length === 1) {
 307         return this.expressions[0];
 308       } else {
 309         return this;
 310       }
 311     };
 312
 313     Block.prototype.isEmpty = function() {
 314       return !this.expressions.length;
 315     };
 316
 317     Block.prototype.isStatement = function(o) {
 318       var exp, _i, _len, _ref2;
 319       _ref2 = this.expressions;
 320       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
 321         exp = _ref2[_i];
 322         if (exp.isStatement(o)) {
 323           return true;
 324         }
 325       }
 326       return false;
 327     };
 328
 329     Block.prototype.jumps = function(o) {
 330       var exp, jumpNode, _i, _len, _ref2;
 331       _ref2 = this.expressions;
 332       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
 333         exp = _ref2[_i];
 334         if (jumpNode = exp.jumps(o)) {
 335           return jumpNode;
 336         }
 337       }
 338     };
 339
 340     Block.prototype.makeReturn = function(res) {
 341       var expr, len;
 342       len = this.expressions.length;
 343       while (len--) {
 344         expr = this.expressions[len];
 345         if (!(expr instanceof Comment)) {
 346           this.expressions[len] = expr.makeReturn(res);
 347           if (expr instanceof Return && !expr.expression) {
 348             this.expressions.splice(len, 1);
 349           }
 350           break;
 351         }
 352       }
 353       return this;
 354     };
 355
 356     Block.prototype.compileToFragments = function(o, level) {
 357       if (o == null) {
 358         o = {};
 359       }
 360       if (o.scope) {
 361         return Block.__super__.compileToFragments.call(this, o, level);
 362       } else {
 363         return this.compileRoot(o);
 364       }
 365     };
 366
 367     Block.prototype.compileNode = function(o) {
 368       var answer, compiledNodes, fragments, index, node, top, _i, _len, _ref2;
 369       this.tab = o.indent;
 370       top = o.level === LEVEL_TOP;
 371       compiledNodes = [];
 372       _ref2 = this.expressions;
 373       for (index = _i = 0, _len = _ref2.length; _i < _len; index = ++_i) {
 374         node = _ref2[index];
 375         node = node.unwrapAll();
 376         node = node.unfoldSoak(o) || node;
 377         if (node instanceof Block) {
 378           compiledNodes.push(node.compileNode(o));
 379         } else if (top) {
 380           node.front = true;
 381           fragments = node.compileToFragments(o);
 382           if (!node.isStatement(o)) {
 383             fragments.unshift(this.makeCode("" + this.tab));
 384             fragments.push(this.makeCode(";"));
 385           }
 386           compiledNodes.push(fragments);
 387         } else {
 388           compiledNodes.push(node.compileToFragments(o, LEVEL_LIST));
 389         }
 390       }
 391       if (top) {
 392         if (this.spaced) {
 393           return [].concat(this.joinFragmentArrays(compiledNodes, '\n\n'), this.makeCode("\n"));
 394         } else {
 395           return this.joinFragmentArrays(compiledNodes, '\n');
 396         }
 397       }
 398       if (compiledNodes.length) {
 399         answer = this.joinFragmentArrays(compiledNodes, ', ');
 400       } else {
 401         answer = [this.makeCode("void 0")];
 402       }
 403       if (compiledNodes.length > 1 && o.level >= LEVEL_LIST) {
 404         return this.wrapInBraces(answer);
 405       } else {
 406         return answer;
 407       }
 408     };
 409
 410     Block.prototype.compileRoot = function(o) {
 411       var exp, fragments, i, name, prelude, preludeExps, rest, _i, _len, _ref2;
 412       o.indent = o.bare ? '' : TAB;
 413       o.level = LEVEL_TOP;
 414       this.spaced = true;
 415       o.scope = new Scope(null, this, null);
 416       _ref2 = o.locals || [];
 417       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
 418         name = _ref2[_i];
 419         o.scope.parameter(name);
 420       }
 421       prelude = [];
 422       if (!o.bare) {
 423         preludeExps = (function() {
 424           var _j, _len1, _ref3, _results;
 425           _ref3 = this.expressions;
 426           _results = [];
 427           for (i = _j = 0, _len1 = _ref3.length; _j < _len1; i = ++_j) {
 428             exp = _ref3[i];
 429             if (!(exp.unwrap() instanceof Comment)) {
 430               break;
 431             }
 432             _results.push(exp);
 433           }
 434           return _results;
 435         }).call(this);
 436         rest = this.expressions.slice(preludeExps.length);
 437         this.expressions = preludeExps;
 438         if (preludeExps.length) {
 439           prelude = this.compileNode(merge(o, {
 440             indent: ''
 441           }));
 442           prelude.push(this.makeCode("\n"));
 443         }
 444         this.expressions = rest;
 445       }
 446       fragments = this.compileWithDeclarations(o);
 447       if (o.bare) {
 448         return fragments;
 449       }
 450       return [].concat(prelude, this.makeCode("(function() {\n"), fragments, this.makeCode("\n}).call(this);\n"));
 451     };
 452
 453     Block.prototype.compileWithDeclarations = function(o) {
 454       var assigns, declars, exp, fragments, i, post, rest, scope, spaced, _i, _len, _ref2, _ref3, _ref4;
 455       fragments = [];
 456       post = [];
 457       _ref2 = this.expressions;
 458       for (i = _i = 0, _len = _ref2.length; _i < _len; i = ++_i) {
 459         exp = _ref2[i];
 460         exp = exp.unwrap();
 461         if (!(exp instanceof Comment || exp instanceof Literal)) {
 462           break;
 463         }
 464       }
 465       o = merge(o, {
 466         level: LEVEL_TOP
 467       });
 468       if (i) {
 469         rest = this.expressions.splice(i, 9e9);
 470         _ref3 = [this.spaced, false], spaced = _ref3[0], this.spaced = _ref3[1];
 471         _ref4 = [this.compileNode(o), spaced], fragments = _ref4[0], this.spaced = _ref4[1];
 472         this.expressions = rest;
 473       }
 474       post = this.compileNode(o);
 475       scope = o.scope;
 476       if (scope.expressions === this) {
 477         declars = o.scope.hasDeclarations();
 478         assigns = scope.hasAssignments;
 479         if (declars || assigns) {
 480           if (i) {
 481             fragments.push(this.makeCode('\n'));
 482           }
 483           fragments.push(this.makeCode("" + this.tab + "var "));
 484           if (declars) {
 485             fragments.push(this.makeCode(scope.declaredVariables().join(', ')));
 486           }
 487           if (assigns) {
 488             if (declars) {
 489               fragments.push(this.makeCode(",\n" + (this.tab + TAB)));
 490             }
 491             fragments.push(this.makeCode(scope.assignedVariables().join(",\n" + (this.tab + TAB))));
 492           }
 493           fragments.push(this.makeCode(";\n" + (this.spaced ? '\n' : '')));
 494         } else if (fragments.length && post.length) {
 495           fragments.push(this.makeCode("\n"));
 496         }
 497       }
 498       return fragments.concat(post);
 499     };
 500
 501     Block.wrap = function(nodes) {
 502       if (nodes.length === 1 && nodes[0] instanceof Block) {
 503         return nodes[0];
 504       }
 505       return new Block(nodes);
 506     };
 507
 508     return Block;
 509
 510   })(Base);
 511
 512   exports.Literal = Literal = (function(_super) {
 513     __extends(Literal, _super);
 514
 515     function Literal(value) {
 516       this.value = value;
 517     }
 518
 519     Literal.prototype.makeReturn = function() {
 520       if (this.isStatement()) {
 521         return this;
 522       } else {
 523         return Literal.__super__.makeReturn.apply(this, arguments);
 524       }
 525     };
 526
 527     Literal.prototype.isAssignable = function() {
 528       return IDENTIFIER.test(this.value);
 529     };
 530
 531     Literal.prototype.isStatement = function() {
 532       var _ref2;
 533       return (_ref2 = this.value) === 'break' || _ref2 === 'continue' || _ref2 === 'debugger';
 534     };
 535
 536     Literal.prototype.isComplex = NO;
 537
 538     Literal.prototype.assigns = function(name) {
 539       return name === this.value;
 540     };
 541
 542     Literal.prototype.jumps = function(o) {
 543       if (this.value === 'break' && !((o != null ? o.loop : void 0) || (o != null ? o.block : void 0))) {
 544         return this;
 545       }
 546       if (this.value === 'continue' && !(o != null ? o.loop : void 0)) {
 547         return this;
 548       }
 549     };
 550
 551     Literal.prototype.compileNode = function(o) {
 552       var answer, code, _ref2;
 553       code = this.value === 'this' ? ((_ref2 = o.scope.method) != null ? _ref2.bound : void 0) ? o.scope.method.context : this.value : this.value.reserved ? "\"" + this.value + "\"" : this.value;
 554       answer = this.isStatement() ? "" + this.tab + code + ";" : code;
 555       return [this.makeCode(answer)];
 556     };
 557
 558     Literal.prototype.toString = function() {
 559       return ' "' + this.value + '"';
 560     };
 561
 562     return Literal;
 563
 564   })(Base);
 565
 566   exports.Undefined = (function(_super) {
 567     __extends(Undefined, _super);
 568
 569     function Undefined() {
 570       return Undefined.__super__.constructor.apply(this, arguments);
 571     }
 572
 573     Undefined.prototype.isAssignable = NO;
 574
 575     Undefined.prototype.isComplex = NO;
 576
 577     Undefined.prototype.compileNode = function(o) {
 578       return [this.makeCode(o.level >= LEVEL_ACCESS ? '(void 0)' : 'void 0')];
 579     };
 580
 581     return Undefined;
 582
 583   })(Base);
 584
 585   exports.Null = (function(_super) {
 586     __extends(Null, _super);
 587
 588     function Null() {
 589       return Null.__super__.constructor.apply(this, arguments);
 590     }
 591
 592     Null.prototype.isAssignable = NO;
 593
 594     Null.prototype.isComplex = NO;
 595
 596     Null.prototype.compileNode = function() {
 597       return [this.makeCode("null")];
 598     };
 599
 600     return Null;
 601
 602   })(Base);
 603
 604   exports.Bool = (function(_super) {
 605     __extends(Bool, _super);
 606
 607     Bool.prototype.isAssignable = NO;
 608
 609     Bool.prototype.isComplex = NO;
 610
 611     Bool.prototype.compileNode = function() {
 612       return [this.makeCode(this.val)];
 613     };
 614
 615     function Bool(val) {
 616       this.val = val;
 617     }
 618
 619     return Bool;
 620
 621   })(Base);
 622
 623   exports.Return = Return = (function(_super) {
 624     __extends(Return, _super);
 625
 626     function Return(expression) {
 627       this.expression = expression;
 628     }
 629
 630     Return.prototype.children = ['expression'];
 631
 632     Return.prototype.isStatement = YES;
 633
 634     Return.prototype.makeReturn = THIS;
 635
 636     Return.prototype.jumps = THIS;
 637
 638     Return.prototype.compileToFragments = function(o, level) {
 639       var expr, _ref2;
 640       expr = (_ref2 = this.expression) != null ? _ref2.makeReturn() : void 0;
 641       if (expr && !(expr instanceof Return)) {
 642         return expr.compileToFragments(o, level);
 643       } else {
 644         return Return.__super__.compileToFragments.call(this, o, level);
 645       }
 646     };
 647
 648     Return.prototype.compileNode = function(o) {
 649       var answer;
 650       answer = [];
 651       answer.push(this.makeCode(this.tab + ("return" + (this.expression ? " " : ""))));
 652       if (this.expression) {
 653         answer = answer.concat(this.expression.compileToFragments(o, LEVEL_PAREN));
 654       }
 655       answer.push(this.makeCode(";"));
 656       return answer;
 657     };
 658
 659     return Return;
 660
 661   })(Base);
 662
 663   exports.Value = Value = (function(_super) {
 664     __extends(Value, _super);
 665
 666     function Value(base, props, tag) {
 667       if (!props && base instanceof Value) {
 668         return base;
 669       }
 670       this.base = base;
 671       this.properties = props || [];
 672       if (tag) {
 673         this[tag] = true;
 674       }
 675       return this;
 676     }
 677
 678     Value.prototype.children = ['base', 'properties'];
 679
 680     Value.prototype.add = function(props) {
 681       this.properties = this.properties.concat(props);
 682       return this;
 683     };
 684
 685     Value.prototype.hasProperties = function() {
 686       return !!this.properties.length;
 687     };
 688
 689     Value.prototype.bareLiteral = function(type) {
 690       return !this.properties.length && this.base instanceof type;
 691     };
 692
 693     Value.prototype.isArray = function() {
 694       return this.bareLiteral(Arr);
 695     };
 696
 697     Value.prototype.isRange = function() {
 698       return this.bareLiteral(Range);
 699     };
 700
 701     Value.prototype.isComplex = function() {
 702       return this.hasProperties() || this.base.isComplex();
 703     };
 704
 705     Value.prototype.isAssignable = function() {
 706       return this.hasProperties() || this.base.isAssignable();
 707     };
 708
 709     Value.prototype.isSimpleNumber = function() {
 710       return this.bareLiteral(Literal) && SIMPLENUM.test(this.base.value);
 711     };
 712
 713     Value.prototype.isString = function() {
 714       return this.bareLiteral(Literal) && IS_STRING.test(this.base.value);
 715     };
 716
 717     Value.prototype.isRegex = function() {
 718       return this.bareLiteral(Literal) && IS_REGEX.test(this.base.value);
 719     };
 720
 721     Value.prototype.isAtomic = function() {
 722       var node, _i, _len, _ref2;
 723       _ref2 = this.properties.concat(this.base);
 724       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
 725         node = _ref2[_i];
 726         if (node.soak || node instanceof Call) {
 727           return false;
 728         }
 729       }
 730       return true;
 731     };
 732
 733     Value.prototype.isNotCallable = function() {
 734       return this.isSimpleNumber() || this.isString() || this.isRegex() || this.isArray() || this.isRange() || this.isSplice() || this.isObject();
 735     };
 736
 737     Value.prototype.isStatement = function(o) {
 738       return !this.properties.length && this.base.isStatement(o);
 739     };
 740
 741     Value.prototype.assigns = function(name) {
 742       return !this.properties.length && this.base.assigns(name);
 743     };
 744
 745     Value.prototype.jumps = function(o) {
 746       return !this.properties.length && this.base.jumps(o);
 747     };
 748
 749     Value.prototype.isObject = function(onlyGenerated) {
 750       if (this.properties.length) {
 751         return false;
 752       }
 753       return (this.base instanceof Obj) && (!onlyGenerated || this.base.generated);
 754     };
 755
 756     Value.prototype.isSplice = function() {
 757       return last(this.properties) instanceof Slice;
 758     };
 759
 760     Value.prototype.looksStatic = function(className) {
 761       var _ref2;
 762       return this.base.value === className && this.properties.length && ((_ref2 = this.properties[0].name) != null ? _ref2.value : void 0) !== 'prototype';
 763     };
 764
 765     Value.prototype.unwrap = function() {
 766       if (this.properties.length) {
 767         return this;
 768       } else {
 769         return this.base;
 770       }
 771     };
 772
 773     Value.prototype.cacheReference = function(o) {
 774       var base, bref, name, nref;
 775       name = last(this.properties);
 776       if (this.properties.length < 2 && !this.base.isComplex() && !(name != null ? name.isComplex() : void 0)) {
 777         return [this, this];
 778       }
 779       base = new Value(this.base, this.properties.slice(0, -1));
 780       if (base.isComplex()) {
 781         bref = new Literal(o.scope.freeVariable('base'));
 782         base = new Value(new Parens(new Assign(bref, base)));
 783       }
 784       if (!name) {
 785         return [base, bref];
 786       }
 787       if (name.isComplex()) {
 788         nref = new Literal(o.scope.freeVariable('name'));
 789         name = new Index(new Assign(nref, name.index));
 790         nref = new Index(nref);
 791       }
 792       return [base.add(name), new Value(bref || base.base, [nref || name])];
 793     };
 794
 795     Value.prototype.compileNode = function(o) {
 796       var fragments, prop, props, _i, _len;
 797       this.base.front = this.front;
 798       props = this.properties;
 799       fragments = this.base.compileToFragments(o, (props.length ? LEVEL_ACCESS : null));
 800       if ((this.base instanceof Parens || props.length) && SIMPLENUM.test(fragmentsToText(fragments))) {
 801         fragments.push(this.makeCode('.'));
 802       }
 803       for (_i = 0, _len = props.length; _i < _len; _i++) {
 804         prop = props[_i];
 805         fragments.push.apply(fragments, prop.compileToFragments(o));
 806       }
 807       return fragments;
 808     };
 809
 810     Value.prototype.unfoldSoak = function(o) {
 811       return this.unfoldedSoak != null ? this.unfoldedSoak : this.unfoldedSoak = (function(_this) {
 812         return function() {
 813           var fst, i, ifn, prop, ref, snd, _i, _len, _ref2, _ref3;
 814           if (ifn = _this.base.unfoldSoak(o)) {
 815             (_ref2 = ifn.body.properties).push.apply(_ref2, _this.properties);
 816             return ifn;
 817           }
 818           _ref3 = _this.properties;
 819           for (i = _i = 0, _len = _ref3.length; _i < _len; i = ++_i) {
 820             prop = _ref3[i];
 821             if (!prop.soak) {
 822               continue;
 823             }
 824             prop.soak = false;
 825             fst = new Value(_this.base, _this.properties.slice(0, i));
 826             snd = new Value(_this.base, _this.properties.slice(i));
 827             if (fst.isComplex()) {
 828               ref = new Literal(o.scope.freeVariable('ref'));
 829               fst = new Parens(new Assign(ref, fst));
 830               snd.base = ref;
 831             }
 832             return new If(new Existence(fst), snd, {
 833               soak: true
 834             });
 835           }
 836           return false;
 837         };
 838       })(this)();
 839     };
 840
 841     return Value;
 842
 843   })(Base);
 844
 845   exports.Comment = Comment = (function(_super) {
 846     __extends(Comment, _super);
 847
 848     function Comment(comment) {
 849       this.comment = comment;
 850     }
 851
 852     Comment.prototype.isStatement = YES;
 853
 854     Comment.prototype.makeReturn = THIS;
 855
 856     Comment.prototype.compileNode = function(o, level) {
 857       var code, comment;
 858       comment = this.comment.replace(/^(\s*)#/gm, "$1 *");
 859       code = "/*" + (multident(comment, this.tab)) + (__indexOf.call(comment, '\n') >= 0 ? "\n" + this.tab : '') + " */";
 860       if ((level || o.level) === LEVEL_TOP) {
 861         code = o.indent + code;
 862       }
 863       return [this.makeCode("\n"), this.makeCode(code)];
 864     };
 865
 866     return Comment;
 867
 868   })(Base);
 869
 870   exports.Call = Call = (function(_super) {
 871     __extends(Call, _super);
 872
 873     function Call(variable, args, soak) {
 874       this.args = args != null ? args : [];
 875       this.soak = soak;
 876       this.isNew = false;
 877       this.isSuper = variable === 'super';
 878       this.variable = this.isSuper ? null : variable;
 879       if (variable instanceof Value && variable.isNotCallable()) {
 880         variable.error("literal is not a function");
 881       }
 882     }
 883
 884     Call.prototype.children = ['variable', 'args'];
 885
 886     Call.prototype.newInstance = function() {
 887       var base, _ref2;
 888       base = ((_ref2 = this.variable) != null ? _ref2.base : void 0) || this.variable;
 889       if (base instanceof Call && !base.isNew) {
 890         base.newInstance();
 891       } else {
 892         this.isNew = true;
 893       }
 894       return this;
 895     };
 896
 897     Call.prototype.superReference = function(o) {
 898       var accesses, method;
 899       method = o.scope.namedMethod();
 900       if (method != null ? method.klass : void 0) {
 901         accesses = [new Access(new Literal('__super__'))];
 902         if (method["static"]) {
 903           accesses.push(new Access(new Literal('constructor')));
 904         }
 905         accesses.push(new Access(new Literal(method.name)));
 906         return (new Value(new Literal(method.klass), accesses)).compile(o);
 907       } else if (method != null ? method.ctor : void 0) {
 908         return "" + method.name + ".__super__.constructor";
 909       } else {
 910         return this.error('cannot call super outside of an instance method.');
 911       }
 912     };
 913
 914     Call.prototype.superThis = function(o) {
 915       var method;
 916       method = o.scope.method;
 917       return (method && !method.klass && method.context) || "this";
 918     };
 919
 920     Call.prototype.unfoldSoak = function(o) {
 921       var call, ifn, left, list, rite, _i, _len, _ref2, _ref3;
 922       if (this.soak) {
 923         if (this.variable) {
 924           if (ifn = unfoldSoak(o, this, 'variable')) {
 925             return ifn;
 926           }
 927           _ref2 = new Value(this.variable).cacheReference(o), left = _ref2[0], rite = _ref2[1];
 928         } else {
 929           left = new Literal(this.superReference(o));
 930           rite = new Value(left);
 931         }
 932         rite = new Call(rite, this.args);
 933         rite.isNew = this.isNew;
 934         left = new Literal("typeof " + (left.compile(o)) + " === \"function\"");
 935         return new If(left, new Value(rite), {
 936           soak: true
 937         });
 938       }
 939       call = this;
 940       list = [];
 941       while (true) {
 942         if (call.variable instanceof Call) {
 943           list.push(call);
 944           call = call.variable;
 945           continue;
 946         }
 947         if (!(call.variable instanceof Value)) {
 948           break;
 949         }
 950         list.push(call);
 951         if (!((call = call.variable.base) instanceof Call)) {
 952           break;
 953         }
 954       }
 955       _ref3 = list.reverse();
 956       for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
 957         call = _ref3[_i];
 958         if (ifn) {
 959           if (call.variable instanceof Call) {
 960             call.variable = ifn;
 961           } else {
 962             call.variable.base = ifn;
 963           }
 964         }
 965         ifn = unfoldSoak(o, call, 'variable');
 966       }
 967       return ifn;
 968     };
 969
 970     Call.prototype.compileNode = function(o) {
 971       var arg, argIndex, compiledArgs, compiledArray, fragments, preface, _i, _len, _ref2, _ref3;
 972       if ((_ref2 = this.variable) != null) {
 973         _ref2.front = this.front;
 974       }
 975       compiledArray = Splat.compileSplattedArray(o, this.args, true);
 976       if (compiledArray.length) {
 977         return this.compileSplat(o, compiledArray);
 978       }
 979       compiledArgs = [];
 980       _ref3 = this.args;
 981       for (argIndex = _i = 0, _len = _ref3.length; _i < _len; argIndex = ++_i) {
 982         arg = _ref3[argIndex];
 983         if (argIndex) {
 984           compiledArgs.push(this.makeCode(", "));
 985         }
 986         compiledArgs.push.apply(compiledArgs, arg.compileToFragments(o, LEVEL_LIST));
 987       }
 988       fragments = [];
 989       if (this.isSuper) {
 990         preface = this.superReference(o) + (".call(" + (this.superThis(o)));
 991         if (compiledArgs.length) {
 992           preface += ", ";
 993         }
 994         fragments.push(this.makeCode(preface));
 995       } else {
 996         if (this.isNew) {
 997           fragments.push(this.makeCode('new '));
 998         }
 999         fragments.push.apply(fragments, this.variable.compileToFragments(o, LEVEL_ACCESS));
1000         fragments.push(this.makeCode("("));
1001       }
1002       fragments.push.apply(fragments, compiledArgs);
1003       fragments.push(this.makeCode(")"));
1004       return fragments;
1005     };
1006
1007     Call.prototype.compileSplat = function(o, splatArgs) {
1008       var answer, base, fun, idt, name, ref;
1009       if (this.isSuper) {
1010         return [].concat(this.makeCode("" + (this.superReference(o)) + ".apply(" + (this.superThis(o)) + ", "), splatArgs, this.makeCode(")"));
1011       }
1012       if (this.isNew) {
1013         idt = this.tab + TAB;
1014         return [].concat(this.makeCode("(function(func, args, ctor) {\n" + idt + "ctor.prototype = func.prototype;\n" + idt + "var child = new ctor, result = func.apply(child, args);\n" + idt + "return Object(result) === result ? result : child;\n" + this.tab + "})("), this.variable.compileToFragments(o, LEVEL_LIST), this.makeCode(", "), splatArgs, this.makeCode(", function(){})"));
1015       }
1016       answer = [];
1017       base = new Value(this.variable);
1018       if ((name = base.properties.pop()) && base.isComplex()) {
1019         ref = o.scope.freeVariable('ref');
1020         answer = answer.concat(this.makeCode("(" + ref + " = "), base.compileToFragments(o, LEVEL_LIST), this.makeCode(")"), name.compileToFragments(o));
1021       } else {
1022         fun = base.compileToFragments(o, LEVEL_ACCESS);
1023         if (SIMPLENUM.test(fragmentsToText(fun))) {
1024           fun = this.wrapInBraces(fun);
1025         }
1026         if (name) {
1027           ref = fragmentsToText(fun);
1028           fun.push.apply(fun, name.compileToFragments(o));
1029         } else {
1030           ref = 'null';
1031         }
1032         answer = answer.concat(fun);
1033       }
1034       return answer = answer.concat(this.makeCode(".apply(" + ref + ", "), splatArgs, this.makeCode(")"));
1035     };
1036
1037     return Call;
1038
1039   })(Base);
1040
1041   exports.Extends = Extends = (function(_super) {
1042     __extends(Extends, _super);
1043
1044     function Extends(child, parent) {
1045       this.child = child;
1046       this.parent = parent;
1047     }
1048
1049     Extends.prototype.children = ['child', 'parent'];
1050
1051     Extends.prototype.compileToFragments = function(o) {
1052       return new Call(new Value(new Literal(utility('extends'))), [this.child, this.parent]).compileToFragments(o);
1053     };
1054
1055     return Extends;
1056
1057   })(Base);
1058
1059   exports.Access = Access = (function(_super) {
1060     __extends(Access, _super);
1061
1062     function Access(name, tag) {
1063       this.name = name;
1064       this.name.asKey = true;
1065       this.soak = tag === 'soak';
1066     }
1067
1068     Access.prototype.children = ['name'];
1069
1070     Access.prototype.compileToFragments = function(o) {
1071       var name;
1072       name = this.name.compileToFragments(o);
1073       if (IDENTIFIER.test(fragmentsToText(name))) {
1074         name.unshift(this.makeCode("."));
1075       } else {
1076         name.unshift(this.makeCode("["));
1077         name.push(this.makeCode("]"));
1078       }
1079       return name;
1080     };
1081
1082     Access.prototype.isComplex = NO;
1083
1084     return Access;
1085
1086   })(Base);
1087
1088   exports.Index = Index = (function(_super) {
1089     __extends(Index, _super);
1090
1091     function Index(index) {
1092       this.index = index;
1093     }
1094
1095     Index.prototype.children = ['index'];
1096
1097     Index.prototype.compileToFragments = function(o) {
1098       return [].concat(this.makeCode("["), this.index.compileToFragments(o, LEVEL_PAREN), this.makeCode("]"));
1099     };
1100
1101     Index.prototype.isComplex = function() {
1102       return this.index.isComplex();
1103     };
1104
1105     return Index;
1106
1107   })(Base);
1108
1109   exports.Range = Range = (function(_super) {
1110     __extends(Range, _super);
1111
1112     Range.prototype.children = ['from', 'to'];
1113
1114     function Range(from, to, tag) {
1115       this.from = from;
1116       this.to = to;
1117       this.exclusive = tag === 'exclusive';
1118       this.equals = this.exclusive ? '' : '=';
1119     }
1120
1121     Range.prototype.compileVariables = function(o) {
1122       var step, _ref2, _ref3, _ref4, _ref5;
1123       o = merge(o, {
1124         top: true
1125       });
1126       _ref2 = this.cacheToCodeFragments(this.from.cache(o, LEVEL_LIST)), this.fromC = _ref2[0], this.fromVar = _ref2[1];
1127       _ref3 = this.cacheToCodeFragments(this.to.cache(o, LEVEL_LIST)), this.toC = _ref3[0], this.toVar = _ref3[1];
1128       if (step = del(o, 'step')) {
1129         _ref4 = this.cacheToCodeFragments(step.cache(o, LEVEL_LIST)), this.step = _ref4[0], this.stepVar = _ref4[1];
1130       }
1131       _ref5 = [this.fromVar.match(NUMBER), this.toVar.match(NUMBER)], this.fromNum = _ref5[0], this.toNum = _ref5[1];
1132       if (this.stepVar) {
1133         return this.stepNum = this.stepVar.match(NUMBER);
1134       }
1135     };
1136
1137     Range.prototype.compileNode = function(o) {
1138       var cond, condPart, from, gt, idx, idxName, known, lt, namedIndex, stepPart, to, varPart, _ref2, _ref3;
1139       if (!this.fromVar) {
1140         this.compileVariables(o);
1141       }
1142       if (!o.index) {
1143         return this.compileArray(o);
1144       }
1145       known = this.fromNum && this.toNum;
1146       idx = del(o, 'index');
1147       idxName = del(o, 'name');
1148       namedIndex = idxName && idxName !== idx;
1149       varPart = "" + idx + " = " + this.fromC;
1150       if (this.toC !== this.toVar) {
1151         varPart += ", " + this.toC;
1152       }
1153       if (this.step !== this.stepVar) {
1154         varPart += ", " + this.step;
1155       }
1156       _ref2 = ["" + idx + " <" + this.equals, "" + idx + " >" + this.equals], lt = _ref2[0], gt = _ref2[1];
1157       condPart = this.stepNum ? parseNum(this.stepNum[0]) > 0 ? "" + lt + " " + this.toVar : "" + gt + " " + this.toVar : known ? ((_ref3 = [parseNum(this.fromNum[0]), parseNum(this.toNum[0])], from = _ref3[0], to = _ref3[1], _ref3), from <= to ? "" + lt + " " + to : "" + gt + " " + to) : (cond = this.stepVar ? "" + this.stepVar + " > 0" : "" + this.fromVar + " <= " + this.toVar, "" + cond + " ? " + lt + " " + this.toVar + " : " + gt + " " + this.toVar);
1158       stepPart = this.stepVar ? "" + idx + " += " + this.stepVar : known ? namedIndex ? from <= to ? "++" + idx : "--" + idx : from <= to ? "" + idx + "++" : "" + idx + "--" : namedIndex ? "" + cond + " ? ++" + idx + " : --" + idx : "" + cond + " ? " + idx + "++ : " + idx + "--";
1159       if (namedIndex) {
1160         varPart = "" + idxName + " = " + varPart;
1161       }
1162       if (namedIndex) {
1163         stepPart = "" + idxName + " = " + stepPart;
1164       }
1165       return [this.makeCode("" + varPart + "; " + condPart + "; " + stepPart)];
1166     };
1167
1168     Range.prototype.compileArray = function(o) {
1169       var args, body, cond, hasArgs, i, idt, post, pre, range, result, vars, _i, _ref2, _ref3, _results;
1170       if (this.fromNum && this.toNum && Math.abs(this.fromNum - this.toNum) <= 20) {
1171         range = (function() {
1172           _results = [];
1173           for (var _i = _ref2 = +this.fromNum, _ref3 = +this.toNum; _ref2 <= _ref3 ? _i <= _ref3 : _i >= _ref3; _ref2 <= _ref3 ? _i++ : _i--){ _results.push(_i); }
1174           return _results;
1175         }).apply(this);
1176         if (this.exclusive) {
1177           range.pop();
1178         }
1179         return [this.makeCode("[" + (range.join(', ')) + "]")];
1180       }
1181       idt = this.tab + TAB;
1182       i = o.scope.freeVariable('i');
1183       result = o.scope.freeVariable('results');
1184       pre = "\n" + idt + result + " = [];";
1185       if (this.fromNum && this.toNum) {
1186         o.index = i;
1187         body = fragmentsToText(this.compileNode(o));
1188       } else {
1189         vars = ("" + i + " = " + this.fromC) + (this.toC !== this.toVar ? ", " + this.toC : '');
1190         cond = "" + this.fromVar + " <= " + this.toVar;
1191         body = "var " + vars + "; " + cond + " ? " + i + " <" + this.equals + " " + this.toVar + " : " + i + " >" + this.equals + " " + this.toVar + "; " + cond + " ? " + i + "++ : " + i + "--";
1192       }
1193       post = "{ " + result + ".push(" + i + "); }\n" + idt + "return " + result + ";\n" + o.indent;
1194       hasArgs = function(node) {
1195         return node != null ? node.contains(isLiteralArguments) : void 0;
1196       };
1197       if (hasArgs(this.from) || hasArgs(this.to)) {
1198         args = ', arguments';
1199       }
1200       return [this.makeCode("(function() {" + pre + "\n" + idt + "for (" + body + ")" + post + "}).apply(this" + (args != null ? args : '') + ")")];
1201     };
1202
1203     return Range;
1204
1205   })(Base);
1206
1207   exports.Slice = Slice = (function(_super) {
1208     __extends(Slice, _super);
1209
1210     Slice.prototype.children = ['range'];
1211
1212     function Slice(range) {
1213       this.range = range;
1214       Slice.__super__.constructor.call(this);
1215     }
1216
1217     Slice.prototype.compileNode = function(o) {
1218       var compiled, compiledText, from, fromCompiled, to, toStr, _ref2;
1219       _ref2 = this.range, to = _ref2.to, from = _ref2.from;
1220       fromCompiled = from && from.compileToFragments(o, LEVEL_PAREN) || [this.makeCode('0')];
1221       if (to) {
1222         compiled = to.compileToFragments(o, LEVEL_PAREN);
1223         compiledText = fragmentsToText(compiled);
1224         if (!(!this.range.exclusive && +compiledText === -1)) {
1225           toStr = ', ' + (this.range.exclusive ? compiledText : SIMPLENUM.test(compiledText) ? "" + (+compiledText + 1) : (compiled = to.compileToFragments(o, LEVEL_ACCESS), "+" + (fragmentsToText(compiled)) + " + 1 || 9e9"));
1226         }
1227       }
1228       return [this.makeCode(".slice(" + (fragmentsToText(fromCompiled)) + (toStr || '') + ")")];
1229     };
1230
1231     return Slice;
1232
1233   })(Base);
1234
1235   exports.Obj = Obj = (function(_super) {
1236     __extends(Obj, _super);
1237
1238     function Obj(props, generated) {
1239       this.generated = generated != null ? generated : false;
1240       this.objects = this.properties = props || [];
1241     }
1242
1243     Obj.prototype.children = ['properties'];
1244
1245     Obj.prototype.compileNode = function(o) {
1246       var answer, i, idt, indent, join, lastNoncom, node, prop, props, _i, _j, _len, _len1;
1247       props = this.properties;
1248       if (!props.length) {
1249         return [this.makeCode(this.front ? '({})' : '{}')];
1250       }
1251       if (this.generated) {
1252         for (_i = 0, _len = props.length; _i < _len; _i++) {
1253           node = props[_i];
1254           if (node instanceof Value) {
1255             node.error('cannot have an implicit value in an implicit object');
1256           }
1257         }
1258       }
1259       idt = o.indent += TAB;
1260       lastNoncom = this.lastNonComment(this.properties);
1261       answer = [];
1262       for (i = _j = 0, _len1 = props.length; _j < _len1; i = ++_j) {
1263         prop = props[i];
1264         join = i === props.length - 1 ? '' : prop === lastNoncom || prop instanceof Comment ? '\n' : ',\n';
1265         indent = prop instanceof Comment ? '' : idt;
1266         if (prop instanceof Assign && prop.variable instanceof Value && prop.variable.hasProperties()) {
1267           prop.variable.error('Invalid object key');
1268         }
1269         if (prop instanceof Value && prop["this"]) {
1270           prop = new Assign(prop.properties[0].name, prop, 'object');
1271         }
1272         if (!(prop instanceof Comment)) {
1273           if (!(prop instanceof Assign)) {
1274             prop = new Assign(prop, prop, 'object');
1275           }
1276           (prop.variable.base || prop.variable).asKey = true;
1277         }
1278         if (indent) {
1279           answer.push(this.makeCode(indent));
1280         }
1281         answer.push.apply(answer, prop.compileToFragments(o, LEVEL_TOP));
1282         if (join) {
1283           answer.push(this.makeCode(join));
1284         }
1285       }
1286       answer.unshift(this.makeCode("{" + (props.length && '\n')));
1287       answer.push(this.makeCode("" + (props.length && '\n' + this.tab) + "}"));
1288       if (this.front) {
1289         return this.wrapInBraces(answer);
1290       } else {
1291         return answer;
1292       }
1293     };
1294
1295     Obj.prototype.assigns = function(name) {
1296       var prop, _i, _len, _ref2;
1297       _ref2 = this.properties;
1298       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
1299         prop = _ref2[_i];
1300         if (prop.assigns(name)) {
1301           return true;
1302         }
1303       }
1304       return false;
1305     };
1306
1307     return Obj;
1308
1309   })(Base);
1310
1311   exports.Arr = Arr = (function(_super) {
1312     __extends(Arr, _super);
1313
1314     function Arr(objs) {
1315       this.objects = objs || [];
1316     }
1317
1318     Arr.prototype.children = ['objects'];
1319
1320     Arr.prototype.compileNode = function(o) {
1321       var answer, compiledObjs, fragments, index, obj, _i, _len;
1322       if (!this.objects.length) {
1323         return [this.makeCode('[]')];
1324       }
1325       o.indent += TAB;
1326       answer = Splat.compileSplattedArray(o, this.objects);
1327       if (answer.length) {
1328         return answer;
1329       }
1330       answer = [];
1331       compiledObjs = (function() {
1332         var _i, _len, _ref2, _results;
1333         _ref2 = this.objects;
1334         _results = [];
1335         for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
1336           obj = _ref2[_i];
1337           _results.push(obj.compileToFragments(o, LEVEL_LIST));
1338         }
1339         return _results;
1340       }).call(this);
1341       for (index = _i = 0, _len = compiledObjs.length; _i < _len; index = ++_i) {
1342         fragments = compiledObjs[index];
1343         if (index) {
1344           answer.push(this.makeCode(", "));
1345         }
1346         answer.push.apply(answer, fragments);
1347       }
1348       if (fragmentsToText(answer).indexOf('\n') >= 0) {
1349         answer.unshift(this.makeCode("[\n" + o.indent));
1350         answer.push(this.makeCode("\n" + this.tab + "]"));
1351       } else {
1352         answer.unshift(this.makeCode("["));
1353         answer.push(this.makeCode("]"));
1354       }
1355       return answer;
1356     };
1357
1358     Arr.prototype.assigns = function(name) {
1359       var obj, _i, _len, _ref2;
1360       _ref2 = this.objects;
1361       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
1362         obj = _ref2[_i];
1363         if (obj.assigns(name)) {
1364           return true;
1365         }
1366       }
1367       return false;
1368     };
1369
1370     return Arr;
1371
1372   })(Base);
1373
1374   exports.Class = Class = (function(_super) {
1375     __extends(Class, _super);
1376
1377     function Class(variable, parent, body) {
1378       this.variable = variable;
1379       this.parent = parent;
1380       this.body = body != null ? body : new Block;
1381       this.boundFuncs = [];
1382       this.body.classBody = true;
1383     }
1384
1385     Class.prototype.children = ['variable', 'parent', 'body'];
1386
1387     Class.prototype.determineName = function() {
1388       var decl, tail;
1389       if (!this.variable) {
1390         return null;
1391       }
1392       decl = (tail = last(this.variable.properties)) ? tail instanceof Access && tail.name.value : this.variable.base.value;
1393       if (__indexOf.call(STRICT_PROSCRIBED, decl) >= 0) {
1394         this.variable.error("class variable name may not be " + decl);
1395       }
1396       return decl && (decl = IDENTIFIER.test(decl) && decl);
1397     };
1398
1399     Class.prototype.setContext = function(name) {
1400       return this.body.traverseChildren(false, function(node) {
1401         if (node.classBody) {
1402           return false;
1403         }
1404         if (node instanceof Literal && node.value === 'this') {
1405           return node.value = name;
1406         } else if (node instanceof Code) {
1407           node.klass = name;
1408           if (node.bound) {
1409             return node.context = name;
1410           }
1411         }
1412       });
1413     };
1414
1415     Class.prototype.addBoundFunctions = function(o) {
1416       var bvar, lhs, _i, _len, _ref2;
1417       _ref2 = this.boundFuncs;
1418       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
1419         bvar = _ref2[_i];
1420         lhs = (new Value(new Literal("this"), [new Access(bvar)])).compile(o);
1421         this.ctor.body.unshift(new Literal("" + lhs + " = " + (utility('bind')) + "(" + lhs + ", this)"));
1422       }
1423     };
1424
1425     Class.prototype.addProperties = function(node, name, o) {
1426       var assign, base, exprs, func, props;
1427       props = node.base.properties.slice(0);
1428       exprs = (function() {
1429         var _results;
1430         _results = [];
1431         while (assign = props.shift()) {
1432           if (assign instanceof Assign) {
1433             base = assign.variable.base;
1434             delete assign.context;
1435             func = assign.value;
1436             if (base.value === 'constructor') {
1437               if (this.ctor) {
1438                 assign.error('cannot define more than one constructor in a class');
1439               }
1440               if (func.bound) {
1441                 assign.error('cannot define a constructor as a bound function');
1442               }
1443               if (func instanceof Code) {
1444                 assign = this.ctor = func;
1445               } else {
1446                 this.externalCtor = o.classScope.freeVariable('class');
1447                 assign = new Assign(new Literal(this.externalCtor), func);
1448               }
1449             } else {
1450               if (assign.variable["this"]) {
1451                 func["static"] = true;
1452               } else {
1453                 assign.variable = new Value(new Literal(name), [new Access(new Literal('prototype')), new Access(base)]);
1454                 if (func instanceof Code && func.bound) {
1455                   this.boundFuncs.push(base);
1456                   func.bound = false;
1457                 }
1458               }
1459             }
1460           }
1461           _results.push(assign);
1462         }
1463         return _results;
1464       }).call(this);
1465       return compact(exprs);
1466     };
1467
1468     Class.prototype.walkBody = function(name, o) {
1469       return this.traverseChildren(false, (function(_this) {
1470         return function(child) {
1471           var cont, exps, i, node, _i, _len, _ref2;
1472           cont = true;
1473           if (child instanceof Class) {
1474             return false;
1475           }
1476           if (child instanceof Block) {
1477             _ref2 = exps = child.expressions;
1478             for (i = _i = 0, _len = _ref2.length; _i < _len; i = ++_i) {
1479               node = _ref2[i];
1480               if (node instanceof Assign && node.variable.looksStatic(name)) {
1481                 node.value["static"] = true;
1482               } else if (node instanceof Value && node.isObject(true)) {
1483                 cont = false;
1484                 exps[i] = _this.addProperties(node, name, o);
1485               }
1486             }
1487             child.expressions = exps = flatten(exps);
1488           }
1489           return cont && !(child instanceof Class);
1490         };
1491       })(this));
1492     };
1493
1494     Class.prototype.hoistDirectivePrologue = function() {
1495       var expressions, index, node;
1496       index = 0;
1497       expressions = this.body.expressions;
1498       while ((node = expressions[index]) && node instanceof Comment || node instanceof Value && node.isString()) {
1499         ++index;
1500       }
1501       return this.directives = expressions.splice(0, index);
1502     };
1503
1504     Class.prototype.ensureConstructor = function(name) {
1505       if (!this.ctor) {
1506         this.ctor = new Code;
1507         if (this.externalCtor) {
1508           this.ctor.body.push(new Literal("" + this.externalCtor + ".apply(this, arguments)"));
1509         } else if (this.parent) {
1510           this.ctor.body.push(new Literal("" + name + ".__super__.constructor.apply(this, arguments)"));
1511         }
1512         this.ctor.body.makeReturn();
1513         this.body.expressions.unshift(this.ctor);
1514       }
1515       this.ctor.ctor = this.ctor.name = name;
1516       this.ctor.klass = null;
1517       return this.ctor.noReturn = true;
1518     };
1519
1520     Class.prototype.compileNode = function(o) {
1521       var args, argumentsNode, func, jumpNode, klass, lname, name, superClass, _ref2;
1522       if (jumpNode = this.body.jumps()) {
1523         jumpNode.error('Class bodies cannot contain pure statements');
1524       }
1525       if (argumentsNode = this.body.contains(isLiteralArguments)) {
1526         argumentsNode.error("Class bodies shouldn't reference arguments");
1527       }
1528       name = this.determineName() || '_Class';
1529       if (name.reserved) {
1530         name = "_" + name;
1531       }
1532       lname = new Literal(name);
1533       func = new Code([], Block.wrap([this.body]));
1534       args = [];
1535       o.classScope = func.makeScope(o.scope);
1536       this.hoistDirectivePrologue();
1537       this.setContext(name);
1538       this.walkBody(name, o);
1539       this.ensureConstructor(name);
1540       this.addBoundFunctions(o);
1541       this.body.spaced = true;
1542       this.body.expressions.push(lname);
1543       if (this.parent) {
1544         superClass = new Literal(o.classScope.freeVariable('super', false));
1545         this.body.expressions.unshift(new Extends(lname, superClass));
1546         func.params.push(new Param(superClass));
1547         args.push(this.parent);
1548       }
1549       (_ref2 = this.body.expressions).unshift.apply(_ref2, this.directives);
1550       klass = new Parens(new Call(func, args));
1551       if (this.variable) {
1552         klass = new Assign(this.variable, klass);
1553       }
1554       return klass.compileToFragments(o);
1555     };
1556
1557     return Class;
1558
1559   })(Base);
1560
1561   exports.Assign = Assign = (function(_super) {
1562     __extends(Assign, _super);
1563
1564     function Assign(variable, value, context, options) {
1565       var forbidden, name, _ref2;
1566       this.variable = variable;
1567       this.value = value;
1568       this.context = context;
1569       this.param = options && options.param;
1570       this.subpattern = options && options.subpattern;
1571       forbidden = (_ref2 = (name = this.variable.unwrapAll().value), __indexOf.call(STRICT_PROSCRIBED, _ref2) >= 0);
1572       if (forbidden && this.context !== 'object') {
1573         this.variable.error("variable name may not be \"" + name + "\"");
1574       }
1575     }
1576
1577     Assign.prototype.children = ['variable', 'value'];
1578
1579     Assign.prototype.isStatement = function(o) {
1580       return (o != null ? o.level : void 0) === LEVEL_TOP && (this.context != null) && __indexOf.call(this.context, "?") >= 0;
1581     };
1582
1583     Assign.prototype.assigns = function(name) {
1584       return this[this.context === 'object' ? 'value' : 'variable'].assigns(name);
1585     };
1586
1587     Assign.prototype.unfoldSoak = function(o) {
1588       return unfoldSoak(o, this, 'variable');
1589     };
1590
1591     Assign.prototype.compileNode = function(o) {
1592       var answer, compiledName, isValue, match, name, val, varBase, _ref2, _ref3, _ref4, _ref5;
1593       if (isValue = this.variable instanceof Value) {
1594         if (this.variable.isArray() || this.variable.isObject()) {
1595           return this.compilePatternMatch(o);
1596         }
1597         if (this.variable.isSplice()) {
1598           return this.compileSplice(o);
1599         }
1600         if ((_ref2 = this.context) === '||=' || _ref2 === '&&=' || _ref2 === '?=') {
1601           return this.compileConditional(o);
1602         }
1603         if ((_ref3 = this.context) === '**=' || _ref3 === '//=' || _ref3 === '%%=') {
1604           return this.compileSpecialMath(o);
1605         }
1606       }
1607       compiledName = this.variable.compileToFragments(o, LEVEL_LIST);
1608       name = fragmentsToText(compiledName);
1609       if (!this.context) {
1610         varBase = this.variable.unwrapAll();
1611         if (!varBase.isAssignable()) {
1612           this.variable.error("\"" + (this.variable.compile(o)) + "\" cannot be assigned");
1613         }
1614         if (!(typeof varBase.hasProperties === "function" ? varBase.hasProperties() : void 0)) {
1615           if (this.param) {
1616             o.scope.add(name, 'var');
1617           } else {
1618             o.scope.find(name);
1619           }
1620         }
1621       }
1622       if (this.value instanceof Code && (match = METHOD_DEF.exec(name))) {
1623         if (match[2]) {
1624           this.value.klass = match[1];
1625         }
1626         this.value.name = (_ref4 = (_ref5 = match[3]) != null ? _ref5 : match[4]) != null ? _ref4 : match[5];
1627       }
1628       val = this.value.compileToFragments(o, LEVEL_LIST);
1629       if (this.context === 'object') {
1630         return compiledName.concat(this.makeCode(": "), val);
1631       }
1632       answer = compiledName.concat(this.makeCode(" " + (this.context || '=') + " "), val);
1633       if (o.level <= LEVEL_LIST) {
1634         return answer;
1635       } else {
1636         return this.wrapInBraces(answer);
1637       }
1638     };
1639
1640     Assign.prototype.compilePatternMatch = function(o) {
1641       var acc, assigns, code, expandedIdx, fragments, i, idx, isObject, ivar, name, obj, objects, olen, ref, rest, top, val, value, vvar, vvarText, _i, _len, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7;
1642       top = o.level === LEVEL_TOP;
1643       value = this.value;
1644       objects = this.variable.base.objects;
1645       if (!(olen = objects.length)) {
1646         code = value.compileToFragments(o);
1647         if (o.level >= LEVEL_OP) {
1648           return this.wrapInBraces(code);
1649         } else {
1650           return code;
1651         }
1652       }
1653       isObject = this.variable.isObject();
1654       if (top && olen === 1 && !((obj = objects[0]) instanceof Splat)) {
1655         if (obj instanceof Assign) {
1656           _ref2 = obj, (_ref3 = _ref2.variable, idx = _ref3.base), obj = _ref2.value;
1657         } else {
1658           idx = isObject ? obj["this"] ? obj.properties[0].name : obj : new Literal(0);
1659         }
1660         acc = IDENTIFIER.test(idx.unwrap().value || 0);
1661         value = new Value(value);
1662         value.properties.push(new (acc ? Access : Index)(idx));
1663         if (_ref4 = obj.unwrap().value, __indexOf.call(RESERVED, _ref4) >= 0) {
1664           obj.error("assignment to a reserved word: " + (obj.compile(o)));
1665         }
1666         return new Assign(obj, value, null, {
1667           param: this.param
1668         }).compileToFragments(o, LEVEL_TOP);
1669       }
1670       vvar = value.compileToFragments(o, LEVEL_LIST);
1671       vvarText = fragmentsToText(vvar);
1672       assigns = [];
1673       expandedIdx = false;
1674       if (!IDENTIFIER.test(vvarText) || this.variable.assigns(vvarText)) {
1675         assigns.push([this.makeCode("" + (ref = o.scope.freeVariable('ref')) + " = ")].concat(__slice.call(vvar)));
1676         vvar = [this.makeCode(ref)];
1677         vvarText = ref;
1678       }
1679       for (i = _i = 0, _len = objects.length; _i < _len; i = ++_i) {
1680         obj = objects[i];
1681         idx = i;
1682         if (isObject) {
1683           if (obj instanceof Assign) {
1684             _ref5 = obj, (_ref6 = _ref5.variable, idx = _ref6.base), obj = _ref5.value;
1685           } else {
1686             if (obj.base instanceof Parens) {
1687               _ref7 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref7[0], idx = _ref7[1];
1688             } else {
1689               idx = obj["this"] ? obj.properties[0].name : obj;
1690             }
1691           }
1692         }
1693         if (!expandedIdx && obj instanceof Splat) {
1694           name = obj.name.unwrap().value;
1695           obj = obj.unwrap();
1696           val = "" + olen + " <= " + vvarText + ".length ? " + (utility('slice')) + ".call(" + vvarText + ", " + i;
1697           if (rest = olen - i - 1) {
1698             ivar = o.scope.freeVariable('i');
1699             val += ", " + ivar + " = " + vvarText + ".length - " + rest + ") : (" + ivar + " = " + i + ", [])";
1700           } else {
1701             val += ") : []";
1702           }
1703           val = new Literal(val);
1704           expandedIdx = "" + ivar + "++";
1705         } else if (!expandedIdx && obj instanceof Expansion) {
1706           if (rest = olen - i - 1) {
1707             if (rest === 1) {
1708               expandedIdx = "" + vvarText + ".length - 1";
1709             } else {
1710               ivar = o.scope.freeVariable('i');
1711               val = new Literal("" + ivar + " = " + vvarText + ".length - " + rest);
1712               expandedIdx = "" + ivar + "++";
1713               assigns.push(val.compileToFragments(o, LEVEL_LIST));
1714             }
1715           }
1716           continue;
1717         } else {
1718           name = obj.unwrap().value;
1719           if (obj instanceof Splat || obj instanceof Expansion) {
1720             obj.error("multiple splats/expansions are disallowed in an assignment");
1721           }
1722           if (typeof idx === 'number') {
1723             idx = new Literal(expandedIdx || idx);
1724             acc = false;
1725           } else {
1726             acc = isObject && IDENTIFIER.test(idx.unwrap().value || 0);
1727           }
1728           val = new Value(new Literal(vvarText), [new (acc ? Access : Index)(idx)]);
1729         }
1730         if ((name != null) && __indexOf.call(RESERVED, name) >= 0) {
1731           obj.error("assignment to a reserved word: " + (obj.compile(o)));
1732         }
1733         assigns.push(new Assign(obj, val, null, {
1734           param: this.param,
1735           subpattern: true
1736         }).compileToFragments(o, LEVEL_LIST));
1737       }
1738       if (!(top || this.subpattern)) {
1739         assigns.push(vvar);
1740       }
1741       fragments = this.joinFragmentArrays(assigns, ', ');
1742       if (o.level < LEVEL_LIST) {
1743         return fragments;
1744       } else {
1745         return this.wrapInBraces(fragments);
1746       }
1747     };
1748
1749     Assign.prototype.compileConditional = function(o) {
1750       var fragments, left, right, _ref2;
1751       _ref2 = this.variable.cacheReference(o), left = _ref2[0], right = _ref2[1];
1752       if (!left.properties.length && left.base instanceof Literal && left.base.value !== "this" && !o.scope.check(left.base.value)) {
1753         this.variable.error("the variable \"" + left.base.value + "\" can't be assigned with " + this.context + " because it has not been declared before");
1754       }
1755       if (__indexOf.call(this.context, "?") >= 0) {
1756         o.isExistentialEquals = true;
1757         return new If(new Existence(left), right, {
1758           type: 'if'
1759         }).addElse(new Assign(right, this.value, '=')).compileToFragments(o);
1760       } else {
1761         fragments = new Op(this.context.slice(0, -1), left, new Assign(right, this.value, '=')).compileToFragments(o);
1762         if (o.level <= LEVEL_LIST) {
1763           return fragments;
1764         } else {
1765           return this.wrapInBraces(fragments);
1766         }
1767       }
1768     };
1769
1770     Assign.prototype.compileSpecialMath = function(o) {
1771       var left, right, _ref2;
1772       _ref2 = this.variable.cacheReference(o), left = _ref2[0], right = _ref2[1];
1773       return new Assign(left, new Op(this.context.slice(0, -1), right, this.value)).compileToFragments(o);
1774     };
1775
1776     Assign.prototype.compileSplice = function(o) {
1777       var answer, exclusive, from, fromDecl, fromRef, name, to, valDef, valRef, _ref2, _ref3, _ref4;
1778       _ref2 = this.variable.properties.pop().range, from = _ref2.from, to = _ref2.to, exclusive = _ref2.exclusive;
1779       name = this.variable.compile(o);
1780       if (from) {
1781         _ref3 = this.cacheToCodeFragments(from.cache(o, LEVEL_OP)), fromDecl = _ref3[0], fromRef = _ref3[1];
1782       } else {
1783         fromDecl = fromRef = '0';
1784       }
1785       if (to) {
1786         if (from instanceof Value && from.isSimpleNumber() && to instanceof Value && to.isSimpleNumber()) {
1787           to = to.compile(o) - fromRef;
1788           if (!exclusive) {
1789             to += 1;
1790           }
1791         } else {
1792           to = to.compile(o, LEVEL_ACCESS) + ' - ' + fromRef;
1793           if (!exclusive) {
1794             to += ' + 1';
1795           }
1796         }
1797       } else {
1798         to = "9e9";
1799       }
1800       _ref4 = this.value.cache(o, LEVEL_LIST), valDef = _ref4[0], valRef = _ref4[1];
1801       answer = [].concat(this.makeCode("[].splice.apply(" + name + ", [" + fromDecl + ", " + to + "].concat("), valDef, this.makeCode(")), "), valRef);
1802       if (o.level > LEVEL_TOP) {
1803         return this.wrapInBraces(answer);
1804       } else {
1805         return answer;
1806       }
1807     };
1808
1809     return Assign;
1810
1811   })(Base);
1812
1813   exports.Code = Code = (function(_super) {
1814     __extends(Code, _super);
1815
1816     function Code(params, body, tag) {
1817       this.params = params || [];
1818       this.body = body || new Block;
1819       this.bound = tag === 'boundfunc';
1820     }
1821
1822     Code.prototype.children = ['params', 'body'];
1823
1824     Code.prototype.isStatement = function() {
1825       return !!this.ctor;
1826     };
1827
1828     Code.prototype.jumps = NO;
1829
1830     Code.prototype.makeScope = function(parentScope) {
1831       return new Scope(parentScope, this.body, this);
1832     };
1833
1834     Code.prototype.compileNode = function(o) {
1835       var answer, boundfunc, code, exprs, i, lit, p, param, params, ref, splats, uniqs, val, wasEmpty, wrapper, _i, _j, _k, _l, _len, _len1, _len2, _len3, _len4, _len5, _m, _n, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7;
1836       if (this.bound && ((_ref2 = o.scope.method) != null ? _ref2.bound : void 0)) {
1837         this.context = o.scope.method.context;
1838       }
1839       if (this.bound && !this.context) {
1840         this.context = '_this';
1841         wrapper = new Code([new Param(new Literal(this.context))], new Block([this]));
1842         boundfunc = new Call(wrapper, [new Literal('this')]);
1843         boundfunc.updateLocationDataIfMissing(this.locationData);
1844         return boundfunc.compileNode(o);
1845       }
1846       o.scope = del(o, 'classScope') || this.makeScope(o.scope);
1847       o.scope.shared = del(o, 'sharedScope');
1848       o.indent += TAB;
1849       delete o.bare;
1850       delete o.isExistentialEquals;
1851       params = [];
1852       exprs = [];
1853       _ref3 = this.params;
1854       for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
1855         param = _ref3[_i];
1856         if (!(param instanceof Expansion)) {
1857           o.scope.parameter(param.asReference(o));
1858         }
1859       }
1860       _ref4 = this.params;
1861       for (_j = 0, _len1 = _ref4.length; _j < _len1; _j++) {
1862         param = _ref4[_j];
1863         if (!(param.splat || param instanceof Expansion)) {
1864           continue;
1865         }
1866         _ref5 = this.params;
1867         for (_k = 0, _len2 = _ref5.length; _k < _len2; _k++) {
1868           p = _ref5[_k].name;
1869           if (!(!(param instanceof Expansion))) {
1870             continue;
1871           }
1872           if (p["this"]) {
1873             p = p.properties[0].name;
1874           }
1875           if (p.value) {
1876             o.scope.add(p.value, 'var', true);
1877           }
1878         }
1879         splats = new Assign(new Value(new Arr((function() {
1880           var _l, _len3, _ref6, _results;
1881           _ref6 = this.params;
1882           _results = [];
1883           for (_l = 0, _len3 = _ref6.length; _l < _len3; _l++) {
1884             p = _ref6[_l];
1885             _results.push(p.asReference(o));
1886           }
1887           return _results;
1888         }).call(this))), new Value(new Literal('arguments')));
1889         break;
1890       }
1891       _ref6 = this.params;
1892       for (_l = 0, _len3 = _ref6.length; _l < _len3; _l++) {
1893         param = _ref6[_l];
1894         if (param.isComplex()) {
1895           val = ref = param.asReference(o);
1896           if (param.value) {
1897             val = new Op('?', ref, param.value);
1898           }
1899           exprs.push(new Assign(new Value(param.name), val, '=', {
1900             param: true
1901           }));
1902         } else {
1903           ref = param;
1904           if (param.value) {
1905             lit = new Literal(ref.name.value + ' == null');
1906             val = new Assign(new Value(param.name), param.value, '=');
1907             exprs.push(new If(lit, val));
1908           }
1909         }
1910         if (!splats) {
1911           params.push(ref);
1912         }
1913       }
1914       wasEmpty = this.body.isEmpty();
1915       if (splats) {
1916         exprs.unshift(splats);
1917       }
1918       if (exprs.length) {
1919         (_ref7 = this.body.expressions).unshift.apply(_ref7, exprs);
1920       }
1921       for (i = _m = 0, _len4 = params.length; _m < _len4; i = ++_m) {
1922         p = params[i];
1923         params[i] = p.compileToFragments(o);
1924         o.scope.parameter(fragmentsToText(params[i]));
1925       }
1926       uniqs = [];
1927       this.eachParamName(function(name, node) {
1928         if (__indexOf.call(uniqs, name) >= 0) {
1929           node.error("multiple parameters named '" + name + "'");
1930         }
1931         return uniqs.push(name);
1932       });
1933       if (!(wasEmpty || this.noReturn)) {
1934         this.body.makeReturn();
1935       }
1936       code = 'function';
1937       if (this.ctor) {
1938         code += ' ' + this.name;
1939       }
1940       code += '(';
1941       answer = [this.makeCode(code)];
1942       for (i = _n = 0, _len5 = params.length; _n < _len5; i = ++_n) {
1943         p = params[i];
1944         if (i) {
1945           answer.push(this.makeCode(", "));
1946         }
1947         answer.push.apply(answer, p);
1948       }
1949       answer.push(this.makeCode(') {'));
1950       if (!this.body.isEmpty()) {
1951         answer = answer.concat(this.makeCode("\n"), this.body.compileWithDeclarations(o), this.makeCode("\n" + this.tab));
1952       }
1953       answer.push(this.makeCode('}'));
1954       if (this.ctor) {
1955         return [this.makeCode(this.tab)].concat(__slice.call(answer));
1956       }
1957       if (this.front || (o.level >= LEVEL_ACCESS)) {
1958         return this.wrapInBraces(answer);
1959       } else {
1960         return answer;
1961       }
1962     };
1963
1964     Code.prototype.eachParamName = function(iterator) {
1965       var param, _i, _len, _ref2, _results;
1966       _ref2 = this.params;
1967       _results = [];
1968       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
1969         param = _ref2[_i];
1970         _results.push(param.eachName(iterator));
1971       }
1972       return _results;
1973     };
1974
1975     Code.prototype.traverseChildren = function(crossScope, func) {
1976       if (crossScope) {
1977         return Code.__super__.traverseChildren.call(this, crossScope, func);
1978       }
1979     };
1980
1981     return Code;
1982
1983   })(Base);
1984
1985   exports.Param = Param = (function(_super) {
1986     __extends(Param, _super);
1987
1988     function Param(name, value, splat) {
1989       var _ref2;
1990       this.name = name;
1991       this.value = value;
1992       this.splat = splat;
1993       if (_ref2 = (name = this.name.unwrapAll().value), __indexOf.call(STRICT_PROSCRIBED, _ref2) >= 0) {
1994         this.name.error("parameter name \"" + name + "\" is not allowed");
1995       }
1996     }
1997
1998     Param.prototype.children = ['name', 'value'];
1999
2000     Param.prototype.compileToFragments = function(o) {
2001       return this.name.compileToFragments(o, LEVEL_LIST);
2002     };
2003
2004     Param.prototype.asReference = function(o) {
2005       var node;
2006       if (this.reference) {
2007         return this.reference;
2008       }
2009       node = this.name;
2010       if (node["this"]) {
2011         node = node.properties[0].name;
2012         if (node.value.reserved) {
2013           node = new Literal(o.scope.freeVariable(node.value));
2014         }
2015       } else if (node.isComplex()) {
2016         node = new Literal(o.scope.freeVariable('arg'));
2017       }
2018       node = new Value(node);
2019       if (this.splat) {
2020         node = new Splat(node);
2021       }
2022       node.updateLocationDataIfMissing(this.locationData);
2023       return this.reference = node;
2024     };
2025
2026     Param.prototype.isComplex = function() {
2027       return this.name.isComplex();
2028     };
2029
2030     Param.prototype.eachName = function(iterator, name) {
2031       var atParam, node, obj, _i, _len, _ref2;
2032       if (name == null) {
2033         name = this.name;
2034       }
2035       atParam = function(obj) {
2036         var node;
2037         node = obj.properties[0].name;
2038         if (!node.value.reserved) {
2039           return iterator(node.value, node);
2040         }
2041       };
2042       if (name instanceof Literal) {
2043         return iterator(name.value, name);
2044       }
2045       if (name instanceof Value) {
2046         return atParam(name);
2047       }
2048       _ref2 = name.objects;
2049       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
2050         obj = _ref2[_i];
2051         if (obj instanceof Assign) {
2052           this.eachName(iterator, obj.value.unwrap());
2053         } else if (obj instanceof Splat) {
2054           node = obj.name.unwrap();
2055           iterator(node.value, node);
2056         } else if (obj instanceof Value) {
2057           if (obj.isArray() || obj.isObject()) {
2058             this.eachName(iterator, obj.base);
2059           } else if (obj["this"]) {
2060             atParam(obj);
2061           } else {
2062             iterator(obj.base.value, obj.base);
2063           }
2064         } else if (!(obj instanceof Expansion)) {
2065           obj.error("illegal parameter " + (obj.compile()));
2066         }
2067       }
2068     };
2069
2070     return Param;
2071
2072   })(Base);
2073
2074   exports.Splat = Splat = (function(_super) {
2075     __extends(Splat, _super);
2076
2077     Splat.prototype.children = ['name'];
2078
2079     Splat.prototype.isAssignable = YES;
2080
2081     function Splat(name) {
2082       this.name = name.compile ? name : new Literal(name);
2083     }
2084
2085     Splat.prototype.assigns = function(name) {
2086       return this.name.assigns(name);
2087     };
2088
2089     Splat.prototype.compileToFragments = function(o) {
2090       return this.name.compileToFragments(o);
2091     };
2092
2093     Splat.prototype.unwrap = function() {
2094       return this.name;
2095     };
2096
2097     Splat.compileSplattedArray = function(o, list, apply) {
2098       var args, base, compiledNode, concatPart, fragments, i, index, node, _i, _len;
2099       index = -1;
2100       while ((node = list[++index]) && !(node instanceof Splat)) {
2101         continue;
2102       }
2103       if (index >= list.length) {
2104         return [];
2105       }
2106       if (list.length === 1) {
2107         node = list[0];
2108         fragments = node.compileToFragments(o, LEVEL_LIST);
2109         if (apply) {
2110           return fragments;
2111         }
2112         return [].concat(node.makeCode("" + (utility('slice')) + ".call("), fragments, node.makeCode(")"));
2113       }
2114       args = list.slice(index);
2115       for (i = _i = 0, _len = args.length; _i < _len; i = ++_i) {
2116         node = args[i];
2117         compiledNode = node.compileToFragments(o, LEVEL_LIST);
2118         args[i] = node instanceof Splat ? [].concat(node.makeCode("" + (utility('slice')) + ".call("), compiledNode, node.makeCode(")")) : [].concat(node.makeCode("["), compiledNode, node.makeCode("]"));
2119       }
2120       if (index === 0) {
2121         node = list[0];
2122         concatPart = node.joinFragmentArrays(args.slice(1), ', ');
2123         return args[0].concat(node.makeCode(".concat("), concatPart, node.makeCode(")"));
2124       }
2125       base = (function() {
2126         var _j, _len1, _ref2, _results;
2127         _ref2 = list.slice(0, index);
2128         _results = [];
2129         for (_j = 0, _len1 = _ref2.length; _j < _len1; _j++) {
2130           node = _ref2[_j];
2131           _results.push(node.compileToFragments(o, LEVEL_LIST));
2132         }
2133         return _results;
2134       })();
2135       base = list[0].joinFragmentArrays(base, ', ');
2136       concatPart = list[index].joinFragmentArrays(args, ', ');
2137       return [].concat(list[0].makeCode("["), base, list[index].makeCode("].concat("), concatPart, (last(list)).makeCode(")"));
2138     };
2139
2140     return Splat;
2141
2142   })(Base);
2143
2144   exports.Expansion = Expansion = (function(_super) {
2145     __extends(Expansion, _super);
2146
2147     function Expansion() {
2148       return Expansion.__super__.constructor.apply(this, arguments);
2149     }
2150
2151     Expansion.prototype.isComplex = NO;
2152
2153     Expansion.prototype.compileNode = function(o) {
2154       return this.error('Expansion must be used inside a destructuring assignment or parameter list');
2155     };
2156
2157     Expansion.prototype.asReference = function(o) {
2158       return this;
2159     };
2160
2161     Expansion.prototype.eachName = function(iterator) {};
2162
2163     return Expansion;
2164
2165   })(Base);
2166
2167   exports.While = While = (function(_super) {
2168     __extends(While, _super);
2169
2170     function While(condition, options) {
2171       this.condition = (options != null ? options.invert : void 0) ? condition.invert() : condition;
2172       this.guard = options != null ? options.guard : void 0;
2173     }
2174
2175     While.prototype.children = ['condition', 'guard', 'body'];
2176
2177     While.prototype.isStatement = YES;
2178
2179     While.prototype.makeReturn = function(res) {
2180       if (res) {
2181         return While.__super__.makeReturn.apply(this, arguments);
2182       } else {
2183         this.returns = !this.jumps({
2184           loop: true
2185         });
2186         return this;
2187       }
2188     };
2189
2190     While.prototype.addBody = function(body) {
2191       this.body = body;
2192       return this;
2193     };
2194
2195     While.prototype.jumps = function() {
2196       var expressions, jumpNode, node, _i, _len;
2197       expressions = this.body.expressions;
2198       if (!expressions.length) {
2199         return false;
2200       }
2201       for (_i = 0, _len = expressions.length; _i < _len; _i++) {
2202         node = expressions[_i];
2203         if (jumpNode = node.jumps({
2204           loop: true
2205         })) {
2206           return jumpNode;
2207         }
2208       }
2209       return false;
2210     };
2211
2212     While.prototype.compileNode = function(o) {
2213       var answer, body, rvar, set;
2214       o.indent += TAB;
2215       set = '';
2216       body = this.body;
2217       if (body.isEmpty()) {
2218         body = this.makeCode('');
2219       } else {
2220         if (this.returns) {
2221           body.makeReturn(rvar = o.scope.freeVariable('results'));
2222           set = "" + this.tab + rvar + " = [];\n";
2223         }
2224         if (this.guard) {
2225           if (body.expressions.length > 1) {
2226             body.expressions.unshift(new If((new Parens(this.guard)).invert(), new Literal("continue")));
2227           } else {
2228             if (this.guard) {
2229               body = Block.wrap([new If(this.guard, body)]);
2230             }
2231           }
2232         }
2233         body = [].concat(this.makeCode("\n"), body.compileToFragments(o, LEVEL_TOP), this.makeCode("\n" + this.tab));
2234       }
2235       answer = [].concat(this.makeCode(set + this.tab + "while ("), this.condition.compileToFragments(o, LEVEL_PAREN), this.makeCode(") {"), body, this.makeCode("}"));
2236       if (this.returns) {
2237         answer.push(this.makeCode("\n" + this.tab + "return " + rvar + ";"));
2238       }
2239       return answer;
2240     };
2241
2242     return While;
2243
2244   })(Base);
2245
2246   exports.Op = Op = (function(_super) {
2247     var CONVERSIONS, INVERSIONS;
2248
2249     __extends(Op, _super);
2250
2251     function Op(op, first, second, flip) {
2252       if (op === 'in') {
2253         return new In(first, second);
2254       }
2255       if (op === 'do') {
2256         return this.generateDo(first);
2257       }
2258       if (op === 'new') {
2259         if (first instanceof Call && !first["do"] && !first.isNew) {
2260           return first.newInstance();
2261         }
2262         if (first instanceof Code && first.bound || first["do"]) {
2263           first = new Parens(first);
2264         }
2265       }
2266       this.operator = CONVERSIONS[op] || op;
2267       this.first = first;
2268       this.second = second;
2269       this.flip = !!flip;
2270       return this;
2271     }
2272
2273     CONVERSIONS = {
2274       '==': '===',
2275       '!=': '!==',
2276       'of': 'in'
2277     };
2278
2279     INVERSIONS = {
2280       '!==': '===',
2281       '===': '!=='
2282     };
2283
2284     Op.prototype.children = ['first', 'second'];
2285
2286     Op.prototype.isSimpleNumber = NO;
2287
2288     Op.prototype.isUnary = function() {
2289       return !this.second;
2290     };
2291
2292     Op.prototype.isComplex = function() {
2293       var _ref2;
2294       return !(this.isUnary() && ((_ref2 = this.operator) === '+' || _ref2 === '-')) || this.first.isComplex();
2295     };
2296
2297     Op.prototype.isChainable = function() {
2298       var _ref2;
2299       return (_ref2 = this.operator) === '<' || _ref2 === '>' || _ref2 === '>=' || _ref2 === '<=' || _ref2 === '===' || _ref2 === '!==';
2300     };
2301
2302     Op.prototype.invert = function() {
2303       var allInvertable, curr, fst, op, _ref2;
2304       if (this.isChainable() && this.first.isChainable()) {
2305         allInvertable = true;
2306         curr = this;
2307         while (curr && curr.operator) {
2308           allInvertable && (allInvertable = curr.operator in INVERSIONS);
2309           curr = curr.first;
2310         }
2311         if (!allInvertable) {
2312           return new Parens(this).invert();
2313         }
2314         curr = this;
2315         while (curr && curr.operator) {
2316           curr.invert = !curr.invert;
2317           curr.operator = INVERSIONS[curr.operator];
2318           curr = curr.first;
2319         }
2320         return this;
2321       } else if (op = INVERSIONS[this.operator]) {
2322         this.operator = op;
2323         if (this.first.unwrap() instanceof Op) {
2324           this.first.invert();
2325         }
2326         return this;
2327       } else if (this.second) {
2328         return new Parens(this).invert();
2329       } else if (this.operator === '!' && (fst = this.first.unwrap()) instanceof Op && ((_ref2 = fst.operator) === '!' || _ref2 === 'in' || _ref2 === 'instanceof')) {
2330         return fst;
2331       } else {
2332         return new Op('!', this);
2333       }
2334     };
2335
2336     Op.prototype.unfoldSoak = function(o) {
2337       var _ref2;
2338       return ((_ref2 = this.operator) === '++' || _ref2 === '--' || _ref2 === 'delete') && unfoldSoak(o, this, 'first');
2339     };
2340
2341     Op.prototype.generateDo = function(exp) {
2342       var call, func, param, passedParams, ref, _i, _len, _ref2;
2343       passedParams = [];
2344       func = exp instanceof Assign && (ref = exp.value.unwrap()) instanceof Code ? ref : exp;
2345       _ref2 = func.params || [];
2346       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
2347         param = _ref2[_i];
2348         if (param.value) {
2349           passedParams.push(param.value);
2350           delete param.value;
2351         } else {
2352           passedParams.push(param);
2353         }
2354       }
2355       call = new Call(exp, passedParams);
2356       call["do"] = true;
2357       return call;
2358     };
2359
2360     Op.prototype.compileNode = function(o) {
2361       var answer, isChain, lhs, rhs, _ref2, _ref3;
2362       isChain = this.isChainable() && this.first.isChainable();
2363       if (!isChain) {
2364         this.first.front = this.front;
2365       }
2366       if (this.operator === 'delete' && o.scope.check(this.first.unwrapAll().value)) {
2367         this.error('delete operand may not be argument or var');
2368       }
2369       if (((_ref2 = this.operator) === '--' || _ref2 === '++') && (_ref3 = this.first.unwrapAll().value, __indexOf.call(STRICT_PROSCRIBED, _ref3) >= 0)) {
2370         this.error("cannot increment/decrement \"" + (this.first.unwrapAll().value) + "\"");
2371       }
2372       if (this.isUnary()) {
2373         return this.compileUnary(o);
2374       }
2375       if (isChain) {
2376         return this.compileChain(o);
2377       }
2378       switch (this.operator) {
2379         case '?':
2380           return this.compileExistence(o);
2381         case '**':
2382           return this.compilePower(o);
2383         case '//':
2384           return this.compileFloorDivision(o);
2385         case '%%':
2386           return this.compileModulo(o);
2387         default:
2388           lhs = this.first.compileToFragments(o, LEVEL_OP);
2389           rhs = this.second.compileToFragments(o, LEVEL_OP);
2390           answer = [].concat(lhs, this.makeCode(" " + this.operator + " "), rhs);
2391           if (o.level <= LEVEL_OP) {
2392             return answer;
2393           } else {
2394             return this.wrapInBraces(answer);
2395           }
2396       }
2397     };
2398
2399     Op.prototype.compileChain = function(o) {
2400       var fragments, fst, shared, _ref2;
2401       _ref2 = this.first.second.cache(o), this.first.second = _ref2[0], shared = _ref2[1];
2402       fst = this.first.compileToFragments(o, LEVEL_OP);
2403       fragments = fst.concat(this.makeCode(" " + (this.invert ? '&&' : '||') + " "), shared.compileToFragments(o), this.makeCode(" " + this.operator + " "), this.second.compileToFragments(o, LEVEL_OP));
2404       return this.wrapInBraces(fragments);
2405     };
2406
2407     Op.prototype.compileExistence = function(o) {
2408       var fst, ref;
2409       if (this.first.isComplex()) {
2410         ref = new Literal(o.scope.freeVariable('ref'));
2411         fst = new Parens(new Assign(ref, this.first));
2412       } else {
2413         fst = this.first;
2414         ref = fst;
2415       }
2416       return new If(new Existence(fst), ref, {
2417         type: 'if'
2418       }).addElse(this.second).compileToFragments(o);
2419     };
2420
2421     Op.prototype.compileUnary = function(o) {
2422       var op, parts, plusMinus;
2423       parts = [];
2424       op = this.operator;
2425       parts.push([this.makeCode(op)]);
2426       if (op === '!' && this.first instanceof Existence) {
2427         this.first.negated = !this.first.negated;
2428         return this.first.compileToFragments(o);
2429       }
2430       if (o.level >= LEVEL_ACCESS) {
2431         return (new Parens(this)).compileToFragments(o);
2432       }
2433       plusMinus = op === '+' || op === '-';
2434       if ((op === 'new' || op === 'typeof' || op === 'delete') || plusMinus && this.first instanceof Op && this.first.operator === op) {
2435         parts.push([this.makeCode(' ')]);
2436       }
2437       if ((plusMinus && this.first instanceof Op) || (op === 'new' && this.first.isStatement(o))) {
2438         this.first = new Parens(this.first);
2439       }
2440       parts.push(this.first.compileToFragments(o, LEVEL_OP));
2441       if (this.flip) {
2442         parts.reverse();
2443       }
2444       return this.joinFragmentArrays(parts, '');
2445     };
2446
2447     Op.prototype.compilePower = function(o) {
2448       var pow;
2449       pow = new Value(new Literal('Math'), [new Access(new Literal('pow'))]);
2450       return new Call(pow, [this.first, this.second]).compileToFragments(o);
2451     };
2452
2453     Op.prototype.compileFloorDivision = function(o) {
2454       var div, floor;
2455       floor = new Value(new Literal('Math'), [new Access(new Literal('floor'))]);
2456       div = new Op('/', this.first, this.second);
2457       return new Call(floor, [div]).compileToFragments(o);
2458     };
2459
2460     Op.prototype.compileModulo = function(o) {
2461       var mod;
2462       mod = new Value(new Literal(utility('modulo')));
2463       return new Call(mod, [this.first, this.second]).compileToFragments(o);
2464     };
2465
2466     Op.prototype.toString = function(idt) {
2467       return Op.__super__.toString.call(this, idt, this.constructor.name + ' ' + this.operator);
2468     };
2469
2470     return Op;
2471
2472   })(Base);
2473
2474   exports.In = In = (function(_super) {
2475     __extends(In, _super);
2476
2477     function In(object, array) {
2478       this.object = object;
2479       this.array = array;
2480     }
2481
2482     In.prototype.children = ['object', 'array'];
2483
2484     In.prototype.invert = NEGATE;
2485
2486     In.prototype.compileNode = function(o) {
2487       var hasSplat, obj, _i, _len, _ref2;
2488       if (this.array instanceof Value && this.array.isArray() && this.array.base.objects.length) {
2489         _ref2 = this.array.base.objects;
2490         for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
2491           obj = _ref2[_i];
2492           if (!(obj instanceof Splat)) {
2493             continue;
2494           }
2495           hasSplat = true;
2496           break;
2497         }
2498         if (!hasSplat) {
2499           return this.compileOrTest(o);
2500         }
2501       }
2502       return this.compileLoopTest(o);
2503     };
2504
2505     In.prototype.compileOrTest = function(o) {
2506       var cmp, cnj, i, item, ref, sub, tests, _i, _len, _ref2, _ref3, _ref4;
2507       _ref2 = this.object.cache(o, LEVEL_OP), sub = _ref2[0], ref = _ref2[1];
2508       _ref3 = this.negated ? [' !== ', ' && '] : [' === ', ' || '], cmp = _ref3[0], cnj = _ref3[1];
2509       tests = [];
2510       _ref4 = this.array.base.objects;
2511       for (i = _i = 0, _len = _ref4.length; _i < _len; i = ++_i) {
2512         item = _ref4[i];
2513         if (i) {
2514           tests.push(this.makeCode(cnj));
2515         }
2516         tests = tests.concat((i ? ref : sub), this.makeCode(cmp), item.compileToFragments(o, LEVEL_ACCESS));
2517       }
2518       if (o.level < LEVEL_OP) {
2519         return tests;
2520       } else {
2521         return this.wrapInBraces(tests);
2522       }
2523     };
2524
2525     In.prototype.compileLoopTest = function(o) {
2526       var fragments, ref, sub, _ref2;
2527       _ref2 = this.object.cache(o, LEVEL_LIST), sub = _ref2[0], ref = _ref2[1];
2528       fragments = [].concat(this.makeCode(utility('indexOf') + ".call("), this.array.compileToFragments(o, LEVEL_LIST), this.makeCode(", "), ref, this.makeCode(") " + (this.negated ? '< 0' : '>= 0')));
2529       if (fragmentsToText(sub) === fragmentsToText(ref)) {
2530         return fragments;
2531       }
2532       fragments = sub.concat(this.makeCode(', '), fragments);
2533       if (o.level < LEVEL_LIST) {
2534         return fragments;
2535       } else {
2536         return this.wrapInBraces(fragments);
2537       }
2538     };
2539
2540     In.prototype.toString = function(idt) {
2541       return In.__super__.toString.call(this, idt, this.constructor.name + (this.negated ? '!' : ''));
2542     };
2543
2544     return In;
2545
2546   })(Base);
2547
2548   exports.Try = Try = (function(_super) {
2549     __extends(Try, _super);
2550
2551     function Try(attempt, errorVariable, recovery, ensure) {
2552       this.attempt = attempt;
2553       this.errorVariable = errorVariable;
2554       this.recovery = recovery;
2555       this.ensure = ensure;
2556     }
2557
2558     Try.prototype.children = ['attempt', 'recovery', 'ensure'];
2559
2560     Try.prototype.isStatement = YES;
2561
2562     Try.prototype.jumps = function(o) {
2563       var _ref2;
2564       return this.attempt.jumps(o) || ((_ref2 = this.recovery) != null ? _ref2.jumps(o) : void 0);
2565     };
2566
2567     Try.prototype.makeReturn = function(res) {
2568       if (this.attempt) {
2569         this.attempt = this.attempt.makeReturn(res);
2570       }
2571       if (this.recovery) {
2572         this.recovery = this.recovery.makeReturn(res);
2573       }
2574       return this;
2575     };
2576
2577     Try.prototype.compileNode = function(o) {
2578       var catchPart, ensurePart, placeholder, tryPart;
2579       o.indent += TAB;
2580       tryPart = this.attempt.compileToFragments(o, LEVEL_TOP);
2581       catchPart = this.recovery ? (placeholder = new Literal('_error'), this.errorVariable ? this.recovery.unshift(new Assign(this.errorVariable, placeholder)) : void 0, [].concat(this.makeCode(" catch ("), placeholder.compileToFragments(o), this.makeCode(") {\n"), this.recovery.compileToFragments(o, LEVEL_TOP), this.makeCode("\n" + this.tab + "}"))) : !(this.ensure || this.recovery) ? [this.makeCode(' catch (_error) {}')] : [];
2582       ensurePart = this.ensure ? [].concat(this.makeCode(" finally {\n"), this.ensure.compileToFragments(o, LEVEL_TOP), this.makeCode("\n" + this.tab + "}")) : [];
2583       return [].concat(this.makeCode("" + this.tab + "try {\n"), tryPart, this.makeCode("\n" + this.tab + "}"), catchPart, ensurePart);
2584     };
2585
2586     return Try;
2587
2588   })(Base);
2589
2590   exports.Throw = Throw = (function(_super) {
2591     __extends(Throw, _super);
2592
2593     function Throw(expression) {
2594       this.expression = expression;
2595     }
2596
2597     Throw.prototype.children = ['expression'];
2598
2599     Throw.prototype.isStatement = YES;
2600
2601     Throw.prototype.jumps = NO;
2602
2603     Throw.prototype.makeReturn = THIS;
2604
2605     Throw.prototype.compileNode = function(o) {
2606       return [].concat(this.makeCode(this.tab + "throw "), this.expression.compileToFragments(o), this.makeCode(";"));
2607     };
2608
2609     return Throw;
2610
2611   })(Base);
2612
2613   exports.Existence = Existence = (function(_super) {
2614     __extends(Existence, _super);
2615
2616     function Existence(expression) {
2617       this.expression = expression;
2618     }
2619
2620     Existence.prototype.children = ['expression'];
2621
2622     Existence.prototype.invert = NEGATE;
2623
2624     Existence.prototype.compileNode = function(o) {
2625       var cmp, cnj, code, _ref2;
2626       this.expression.front = this.front;
2627       code = this.expression.compile(o, LEVEL_OP);
2628       if (IDENTIFIER.test(code) && !o.scope.check(code)) {
2629         _ref2 = this.negated ? ['===', '||'] : ['!==', '&&'], cmp = _ref2[0], cnj = _ref2[1];
2630         code = "typeof " + code + " " + cmp + " \"undefined\" " + cnj + " " + code + " " + cmp + " null";
2631       } else {
2632         code = "" + code + " " + (this.negated ? '==' : '!=') + " null";
2633       }
2634       return [this.makeCode(o.level <= LEVEL_COND ? code : "(" + code + ")")];
2635     };
2636
2637     return Existence;
2638
2639   })(Base);
2640
2641   exports.Parens = Parens = (function(_super) {
2642     __extends(Parens, _super);
2643
2644     function Parens(body) {
2645       this.body = body;
2646     }
2647
2648     Parens.prototype.children = ['body'];
2649
2650     Parens.prototype.unwrap = function() {
2651       return this.body;
2652     };
2653
2654     Parens.prototype.isComplex = function() {
2655       return this.body.isComplex();
2656     };
2657
2658     Parens.prototype.compileNode = function(o) {
2659       var bare, expr, fragments;
2660       expr = this.body.unwrap();
2661       if (expr instanceof Value && expr.isAtomic()) {
2662         expr.front = this.front;
2663         return expr.compileToFragments(o);
2664       }
2665       fragments = expr.compileToFragments(o, LEVEL_PAREN);
2666       bare = o.level < LEVEL_OP && (expr instanceof Op || expr instanceof Call || (expr instanceof For && expr.returns));
2667       if (bare) {
2668         return fragments;
2669       } else {
2670         return this.wrapInBraces(fragments);
2671       }
2672     };
2673
2674     return Parens;
2675
2676   })(Base);
2677
2678   exports.For = For = (function(_super) {
2679     __extends(For, _super);
2680
2681     function For(body, source) {
2682       var _ref2;
2683       this.source = source.source, this.guard = source.guard, this.step = source.step, this.name = source.name, this.index = source.index;
2684       this.body = Block.wrap([body]);
2685       this.own = !!source.own;
2686       this.object = !!source.object;
2687       if (this.object) {
2688         _ref2 = [this.index, this.name], this.name = _ref2[0], this.index = _ref2[1];
2689       }
2690       if (this.index instanceof Value) {
2691         this.index.error('index cannot be a pattern matching expression');
2692       }
2693       this.range = this.source instanceof Value && this.source.base instanceof Range && !this.source.properties.length;
2694       this.pattern = this.name instanceof Value;
2695       if (this.range && this.index) {
2696         this.index.error('indexes do not apply to range loops');
2697       }
2698       if (this.range && this.pattern) {
2699         this.name.error('cannot pattern match over range loops');
2700       }
2701       if (this.own && !this.object) {
2702         this.name.error('cannot use own with for-in');
2703       }
2704       this.returns = false;
2705     }
2706
2707     For.prototype.children = ['body', 'source', 'guard', 'step'];
2708
2709     For.prototype.compileNode = function(o) {
2710       var body, bodyFragments, compare, compareDown, declare, declareDown, defPart, defPartFragments, down, forPartFragments, guardPart, idt1, increment, index, ivar, kvar, kvarAssign, lastJumps, lvar, name, namePart, ref, resultPart, returnResult, rvar, scope, source, step, stepNum, stepVar, svar, varPart, _ref2, _ref3;
2711       body = Block.wrap([this.body]);
2712       lastJumps = (_ref2 = last(body.expressions)) != null ? _ref2.jumps() : void 0;
2713       if (lastJumps && lastJumps instanceof Return) {
2714         this.returns = false;
2715       }
2716       source = this.range ? this.source.base : this.source;
2717       scope = o.scope;
2718       if (!this.pattern) {
2719         name = this.name && (this.name.compile(o, LEVEL_LIST));
2720       }
2721       index = this.index && (this.index.compile(o, LEVEL_LIST));
2722       if (name && !this.pattern) {
2723         scope.find(name);
2724       }
2725       if (index) {
2726         scope.find(index);
2727       }
2728       if (this.returns) {
2729         rvar = scope.freeVariable('results');
2730       }
2731       ivar = (this.object && index) || scope.freeVariable('i');
2732       kvar = (this.range && name) || index || ivar;
2733       kvarAssign = kvar !== ivar ? "" + kvar + " = " : "";
2734       if (this.step && !this.range) {
2735         _ref3 = this.cacheToCodeFragments(this.step.cache(o, LEVEL_LIST)), step = _ref3[0], stepVar = _ref3[1];
2736         stepNum = stepVar.match(NUMBER);
2737       }
2738       if (this.pattern) {
2739         name = ivar;
2740       }
2741       varPart = '';
2742       guardPart = '';
2743       defPart = '';
2744       idt1 = this.tab + TAB;
2745       if (this.range) {
2746         forPartFragments = source.compileToFragments(merge(o, {
2747           index: ivar,
2748           name: name,
2749           step: this.step
2750         }));
2751       } else {
2752         svar = this.source.compile(o, LEVEL_LIST);
2753         if ((name || this.own) && !IDENTIFIER.test(svar)) {
2754           defPart += "" + this.tab + (ref = scope.freeVariable('ref')) + " = " + svar + ";\n";
2755           svar = ref;
2756         }
2757         if (name && !this.pattern) {
2758           namePart = "" + name + " = " + svar + "[" + kvar + "]";
2759         }
2760         if (!this.object) {
2761           if (step !== stepVar) {
2762             defPart += "" + this.tab + step + ";\n";
2763           }
2764           if (!(this.step && stepNum && (down = parseNum(stepNum[0]) < 0))) {
2765             lvar = scope.freeVariable('len');
2766           }
2767           declare = "" + kvarAssign + ivar + " = 0, " + lvar + " = " + svar + ".length";
2768           declareDown = "" + kvarAssign + ivar + " = " + svar + ".length - 1";
2769           compare = "" + ivar + " < " + lvar;
2770           compareDown = "" + ivar + " >= 0";
2771           if (this.step) {
2772             if (stepNum) {
2773               if (down) {
2774                 compare = compareDown;
2775                 declare = declareDown;
2776               }
2777             } else {
2778               compare = "" + stepVar + " > 0 ? " + compare + " : " + compareDown;
2779               declare = "(" + stepVar + " > 0 ? (" + declare + ") : " + declareDown + ")";
2780             }
2781             increment = "" + ivar + " += " + stepVar;
2782           } else {
2783             increment = "" + (kvar !== ivar ? "++" + ivar : "" + ivar + "++");
2784           }
2785           forPartFragments = [this.makeCode("" + declare + "; " + compare + "; " + kvarAssign + increment)];
2786         }
2787       }
2788       if (this.returns) {
2789         resultPart = "" + this.tab + rvar + " = [];\n";
2790         returnResult = "\n" + this.tab + "return " + rvar + ";";
2791         body.makeReturn(rvar);
2792       }
2793       if (this.guard) {
2794         if (body.expressions.length > 1) {
2795           body.expressions.unshift(new If((new Parens(this.guard)).invert(), new Literal("continue")));
2796         } else {
2797           if (this.guard) {
2798             body = Block.wrap([new If(this.guard, body)]);
2799           }
2800         }
2801       }
2802       if (this.pattern) {
2803         body.expressions.unshift(new Assign(this.name, new Literal("" + svar + "[" + kvar + "]")));
2804       }
2805       defPartFragments = [].concat(this.makeCode(defPart), this.pluckDirectCall(o, body));
2806       if (namePart) {
2807         varPart = "\n" + idt1 + namePart + ";";
2808       }
2809       if (this.object) {
2810         forPartFragments = [this.makeCode("" + kvar + " in " + svar)];
2811         if (this.own) {
2812           guardPart = "\n" + idt1 + "if (!" + (utility('hasProp')) + ".call(" + svar + ", " + kvar + ")) continue;";
2813         }
2814       }
2815       bodyFragments = body.compileToFragments(merge(o, {
2816         indent: idt1
2817       }), LEVEL_TOP);
2818       if (bodyFragments && (bodyFragments.length > 0)) {
2819         bodyFragments = [].concat(this.makeCode("\n"), bodyFragments, this.makeCode("\n"));
2820       }
2821       return [].concat(defPartFragments, this.makeCode("" + (resultPart || '') + this.tab + "for ("), forPartFragments, this.makeCode(") {" + guardPart + varPart), bodyFragments, this.makeCode("" + this.tab + "}" + (returnResult || '')));
2822     };
2823
2824     For.prototype.pluckDirectCall = function(o, body) {
2825       var base, defs, expr, fn, idx, ref, val, _i, _len, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7, _ref8;
2826       defs = [];
2827       _ref2 = body.expressions;
2828       for (idx = _i = 0, _len = _ref2.length; _i < _len; idx = ++_i) {
2829         expr = _ref2[idx];
2830         expr = expr.unwrapAll();
2831         if (!(expr instanceof Call)) {
2832           continue;
2833         }
2834         val = (_ref3 = expr.variable) != null ? _ref3.unwrapAll() : void 0;
2835         if (!((val instanceof Code) || (val instanceof Value && ((_ref4 = val.base) != null ? _ref4.unwrapAll() : void 0) instanceof Code && val.properties.length === 1 && ((_ref5 = (_ref6 = val.properties[0].name) != null ? _ref6.value : void 0) === 'call' || _ref5 === 'apply')))) {
2836           continue;
2837         }
2838         fn = ((_ref7 = val.base) != null ? _ref7.unwrapAll() : void 0) || val;
2839         ref = new Literal(o.scope.freeVariable('fn'));
2840         base = new Value(ref);
2841         if (val.base) {
2842           _ref8 = [base, val], val.base = _ref8[0], base = _ref8[1];
2843         }
2844         body.expressions[idx] = new Call(base, expr.args);
2845         defs = defs.concat(this.makeCode(this.tab), new Assign(ref, fn).compileToFragments(o, LEVEL_TOP), this.makeCode(';\n'));
2846       }
2847       return defs;
2848     };
2849
2850     return For;
2851
2852   })(While);
2853
2854   exports.Switch = Switch = (function(_super) {
2855     __extends(Switch, _super);
2856
2857     function Switch(subject, cases, otherwise) {
2858       this.subject = subject;
2859       this.cases = cases;
2860       this.otherwise = otherwise;
2861     }
2862
2863     Switch.prototype.children = ['subject', 'cases', 'otherwise'];
2864
2865     Switch.prototype.isStatement = YES;
2866
2867     Switch.prototype.jumps = function(o) {
2868       var block, conds, jumpNode, _i, _len, _ref2, _ref3, _ref4;
2869       if (o == null) {
2870         o = {
2871           block: true
2872         };
2873       }
2874       _ref2 = this.cases;
2875       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
2876         _ref3 = _ref2[_i], conds = _ref3[0], block = _ref3[1];
2877         if (jumpNode = block.jumps(o)) {
2878           return jumpNode;
2879         }
2880       }
2881       return (_ref4 = this.otherwise) != null ? _ref4.jumps(o) : void 0;
2882     };
2883
2884     Switch.prototype.makeReturn = function(res) {
2885       var pair, _i, _len, _ref2, _ref3;
2886       _ref2 = this.cases;
2887       for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
2888         pair = _ref2[_i];
2889         pair[1].makeReturn(res);
2890       }
2891       if (res) {
2892         this.otherwise || (this.otherwise = new Block([new Literal('void 0')]));
2893       }
2894       if ((_ref3 = this.otherwise) != null) {
2895         _ref3.makeReturn(res);
2896       }
2897       return this;
2898     };
2899
2900     Switch.prototype.compileNode = function(o) {
2901       var block, body, cond, conditions, expr, fragments, i, idt1, idt2, _i, _j, _len, _len1, _ref2, _ref3, _ref4;
2902       idt1 = o.indent + TAB;
2903       idt2 = o.indent = idt1 + TAB;
2904       fragments = [].concat(this.makeCode(this.tab + "switch ("), (this.subject ? this.subject.compileToFragments(o, LEVEL_PAREN) : this.makeCode("false")), this.makeCode(") {\n"));
2905       _ref2 = this.cases;
2906       for (i = _i = 0, _len = _ref2.length; _i < _len; i = ++_i) {
2907         _ref3 = _ref2[i], conditions = _ref3[0], block = _ref3[1];
2908         _ref4 = flatten([conditions]);
2909         for (_j = 0, _len1 = _ref4.length; _j < _len1; _j++) {
2910           cond = _ref4[_j];
2911           if (!this.subject) {
2912             cond = cond.invert();
2913           }
2914           fragments = fragments.concat(this.makeCode(idt1 + "case "), cond.compileToFragments(o, LEVEL_PAREN), this.makeCode(":\n"));
2915         }
2916         if ((body = block.compileToFragments(o, LEVEL_TOP)).length > 0) {
2917           fragments = fragments.concat(body, this.makeCode('\n'));
2918         }
2919         if (i === this.cases.length - 1 && !this.otherwise) {
2920           break;
2921         }
2922         expr = this.lastNonComment(block.expressions);
2923         if (expr instanceof Return || (expr instanceof Literal && expr.jumps() && expr.value !== 'debugger')) {
2924           continue;
2925         }
2926         fragments.push(cond.makeCode(idt2 + 'break;\n'));
2927       }
2928       if (this.otherwise && this.otherwise.expressions.length) {
2929         fragments.push.apply(fragments, [this.makeCode(idt1 + "default:\n")].concat(__slice.call(this.otherwise.compileToFragments(o, LEVEL_TOP)), [this.makeCode("\n")]));
2930       }
2931       fragments.push(this.makeCode(this.tab + '}'));
2932       return fragments;
2933     };
2934
2935     return Switch;
2936
2937   })(Base);
2938
2939   exports.If = If = (function(_super) {
2940     __extends(If, _super);
2941
2942     function If(condition, body, options) {
2943       this.body = body;
2944       if (options == null) {
2945         options = {};
2946       }
2947       this.condition = options.type === 'unless' ? condition.invert() : condition;
2948       this.elseBody = null;
2949       this.isChain = false;
2950       this.soak = options.soak;
2951     }
2952
2953     If.prototype.children = ['condition', 'body', 'elseBody'];
2954
2955     If.prototype.bodyNode = function() {
2956       var _ref2;
2957       return (_ref2 = this.body) != null ? _ref2.unwrap() : void 0;
2958     };
2959
2960     If.prototype.elseBodyNode = function() {
2961       var _ref2;
2962       return (_ref2 = this.elseBody) != null ? _ref2.unwrap() : void 0;
2963     };
2964
2965     If.prototype.addElse = function(elseBody) {
2966       if (this.isChain) {
2967         this.elseBodyNode().addElse(elseBody);
2968       } else {
2969         this.isChain = elseBody instanceof If;
2970         this.elseBody = this.ensureBlock(elseBody);
2971         this.elseBody.updateLocationDataIfMissing(elseBody.locationData);
2972       }
2973       return this;
2974     };
2975
2976     If.prototype.isStatement = function(o) {
2977       var _ref2;
2978       return (o != null ? o.level : void 0) === LEVEL_TOP || this.bodyNode().isStatement(o) || ((_ref2 = this.elseBodyNode()) != null ? _ref2.isStatement(o) : void 0);
2979     };
2980
2981     If.prototype.jumps = function(o) {
2982       var _ref2;
2983       return this.body.jumps(o) || ((_ref2 = this.elseBody) != null ? _ref2.jumps(o) : void 0);
2984     };
2985
2986     If.prototype.compileNode = function(o) {
2987       if (this.isStatement(o)) {
2988         return this.compileStatement(o);
2989       } else {
2990         return this.compileExpression(o);
2991       }
2992     };
2993
2994     If.prototype.makeReturn = function(res) {
2995       if (res) {
2996         this.elseBody || (this.elseBody = new Block([new Literal('void 0')]));
2997       }
2998       this.body && (this.body = new Block([this.body.makeReturn(res)]));
2999       this.elseBody && (this.elseBody = new Block([this.elseBody.makeReturn(res)]));
3000       return this;
3001     };
3002
3003     If.prototype.ensureBlock = function(node) {
3004       if (node instanceof Block) {
3005         return node;
3006       } else {
3007         return new Block([node]);
3008       }
3009     };
3010
3011     If.prototype.compileStatement = function(o) {
3012       var answer, body, child, cond, exeq, ifPart, indent;
3013       child = del(o, 'chainChild');
3014       exeq = del(o, 'isExistentialEquals');
3015       if (exeq) {
3016         return new If(this.condition.invert(), this.elseBodyNode(), {
3017           type: 'if'
3018         }).compileToFragments(o);
3019       }
3020       indent = o.indent + TAB;
3021       cond = this.condition.compileToFragments(o, LEVEL_PAREN);
3022       body = this.ensureBlock(this.body).compileToFragments(merge(o, {
3023         indent: indent
3024       }));
3025       ifPart = [].concat(this.makeCode("if ("), cond, this.makeCode(") {\n"), body, this.makeCode("\n" + this.tab + "}"));
3026       if (!child) {
3027         ifPart.unshift(this.makeCode(this.tab));
3028       }
3029       if (!this.elseBody) {
3030         return ifPart;
3031       }
3032       answer = ifPart.concat(this.makeCode(' else '));
3033       if (this.isChain) {
3034         o.chainChild = true;
3035         answer = answer.concat(this.elseBody.unwrap().compileToFragments(o, LEVEL_TOP));
3036       } else {
3037         answer = answer.concat(this.makeCode("{\n"), this.elseBody.compileToFragments(merge(o, {
3038           indent: indent
3039         }), LEVEL_TOP), this.makeCode("\n" + this.tab + "}"));
3040       }
3041       return answer;
3042     };
3043
3044     If.prototype.compileExpression = function(o) {
3045       var alt, body, cond, fragments;
3046       cond = this.condition.compileToFragments(o, LEVEL_COND);
3047       body = this.bodyNode().compileToFragments(o, LEVEL_LIST);
3048       alt = this.elseBodyNode() ? this.elseBodyNode().compileToFragments(o, LEVEL_LIST) : [this.makeCode('void 0')];
3049       fragments = cond.concat(this.makeCode(" ? "), body, this.makeCode(" : "), alt);
3050       if (o.level >= LEVEL_COND) {
3051         return this.wrapInBraces(fragments);
3052       } else {
3053         return fragments;
3054       }
3055     };
3056
3057     If.prototype.unfoldSoak = function() {
3058       return this.soak && this;
3059     };
3060
3061     return If;
3062
3063   })(Base);
3064
3065   UTILITIES = {
3066     "extends": function() {
3067       return "function(child, parent) { for (var key in parent) { if (" + (utility('hasProp')) + ".call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }";
3068     },
3069     bind: function() {
3070       return 'function(fn, me){ return function(){ return fn.apply(me, arguments); }; }';
3071     },
3072     indexOf: function() {
3073       return "[].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; }";
3074     },
3075     modulo: function() {
3076       return "function(a, b) { return (+a % (b = +b) + b) % b; }";
3077     },
3078     hasProp: function() {
3079       return '{}.hasOwnProperty';
3080     },
3081     slice: function() {
3082       return '[].slice';
3083     }
3084   };
3085
3086   LEVEL_TOP = 1;
3087
3088   LEVEL_PAREN = 2;
3089
3090   LEVEL_LIST = 3;
3091
3092   LEVEL_COND = 4;
3093
3094   LEVEL_OP = 5;
3095
3096   LEVEL_ACCESS = 6;
3097
3098   TAB = '  ';
3099
3100   IDENTIFIER_STR = "[$A-Za-z_\\x7f-\\uffff][$\\w\\x7f-\\uffff]*";
3101
3102   IDENTIFIER = RegExp("^" + IDENTIFIER_STR + "$");
3103
3104   SIMPLENUM = /^[+-]?\d+$/;
3105
3106   HEXNUM = /^[+-]?0x[\da-f]+/i;
3107
3108   NUMBER = /^[+-]?(?:0x[\da-f]+|\d*\.?\d+(?:e[+-]?\d+)?)$/i;
3109
3110   METHOD_DEF = RegExp("^(" + IDENTIFIER_STR + ")(\\.prototype)?(?:\\.(" + IDENTIFIER_STR + ")|\\[(\"(?:[^\\\\\"\\r\\n]|\\\\.)*\"|'(?:[^\\\\'\\r\\n]|\\\\.)*')\\]|\\[(0x[\\da-fA-F]+|\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\])$");
3111
3112   IS_STRING = /^['"]/;
3113
3114   IS_REGEX = /^\//;
3115
3116   utility = function(name) {
3117     var ref;
3118     ref = "__" + name;
3119     Scope.root.assign(ref, UTILITIES[name]());
3120     return ref;
3121   };
3122
3123   multident = function(code, tab) {
3124     code = code.replace(/\n/g, '$&' + tab);
3125     return code.replace(/\s+$/, '');
3126   };
3127
3128   parseNum = function(x) {
3129     if (x == null) {
3130       return 0;
3131     } else if (x.match(HEXNUM)) {
3132       return parseInt(x, 16);
3133     } else {
3134       return parseFloat(x);
3135     }
3136   };
3137
3138   isLiteralArguments = function(node) {
3139     return node instanceof Literal && node.value === 'arguments' && !node.asKey;
3140   };
3141
3142   isLiteralThis = function(node) {
3143     return (node instanceof Literal && node.value === 'this' && !node.asKey) || (node instanceof Code && node.bound) || (node instanceof Call && node.isSuper);
3144   };
3145
3146   unfoldSoak = function(o, parent, name) {
3147     var ifn;
3148     if (!(ifn = parent[name].unfoldSoak(o))) {
3149       return;
3150     }
3151     parent[name] = ifn.body;
3152     ifn.body = new Value(parent);
3153     return ifn;
3154   };
3155
3156 }).call(this);