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/scope.js

   1 // Generated by CoffeeScript 1.8.0
   2 (function() {
   3   var Scope, extend, last, _ref;
   4
   5   _ref = require('./helpers'), extend = _ref.extend, last = _ref.last;
   6
   7   exports.Scope = Scope = (function() {
   8     Scope.root = null;
   9
  10     function Scope(parent, expressions, method) {
  11       this.parent = parent;
  12       this.expressions = expressions;
  13       this.method = method;
  14       this.variables = [
  15         {
  16           name: 'arguments',
  17           type: 'arguments'
  18         }
  19       ];
  20       this.positions = {};
  21       if (!this.parent) {
  22         Scope.root = this;
  23       }
  24     }
  25
  26     Scope.prototype.add = function(name, type, immediate) {
  27       if (this.shared && !immediate) {
  28         return this.parent.add(name, type, immediate);
  29       }
  30       if (Object.prototype.hasOwnProperty.call(this.positions, name)) {
  31         return this.variables[this.positions[name]].type = type;
  32       } else {
  33         return this.positions[name] = this.variables.push({
  34           name: name,
  35           type: type
  36         }) - 1;
  37       }
  38     };
  39
  40     Scope.prototype.namedMethod = function() {
  41       var _ref1;
  42       if (((_ref1 = this.method) != null ? _ref1.name : void 0) || !this.parent) {
  43         return this.method;
  44       }
  45       return this.parent.namedMethod();
  46     };
  47
  48     Scope.prototype.find = function(name) {
  49       if (this.check(name)) {
  50         return true;
  51       }
  52       this.add(name, 'var');
  53       return false;
  54     };
  55
  56     Scope.prototype.parameter = function(name) {
  57       if (this.shared && this.parent.check(name, true)) {
  58         return;
  59       }
  60       return this.add(name, 'param');
  61     };
  62
  63     Scope.prototype.check = function(name) {
  64       var _ref1;
  65       return !!(this.type(name) || ((_ref1 = this.parent) != null ? _ref1.check(name) : void 0));
  66     };
  67
  68     Scope.prototype.temporary = function(name, index) {
  69       if (name.length > 1) {
  70         return '_' + name + (index > 1 ? index - 1 : '');
  71       } else {
  72         return '_' + (index + parseInt(name, 36)).toString(36).replace(/\d/g, 'a');
  73       }
  74     };
  75
  76     Scope.prototype.type = function(name) {
  77       var v, _i, _len, _ref1;
  78       _ref1 = this.variables;
  79       for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
  80         v = _ref1[_i];
  81         if (v.name === name) {
  82           return v.type;
  83         }
  84       }
  85       return null;
  86     };
  87
  88     Scope.prototype.freeVariable = function(name, reserve) {
  89       var index, temp;
  90       if (reserve == null) {
  91         reserve = true;
  92       }
  93       index = 0;
  94       while (this.check((temp = this.temporary(name, index)))) {
  95         index++;
  96       }
  97       if (reserve) {
  98         this.add(temp, 'var', true);
  99       }
 100       return temp;
 101     };
 102
 103     Scope.prototype.assign = function(name, value) {
 104       this.add(name, {
 105         value: value,
 106         assigned: true
 107       }, true);
 108       return this.hasAssignments = true;
 109     };
 110
 111     Scope.prototype.hasDeclarations = function() {
 112       return !!this.declaredVariables().length;
 113     };
 114
 115     Scope.prototype.declaredVariables = function() {
 116       var realVars, tempVars, v, _i, _len, _ref1;
 117       realVars = [];
 118       tempVars = [];
 119       _ref1 = this.variables;
 120       for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
 121         v = _ref1[_i];
 122         if (v.type === 'var') {
 123           (v.name.charAt(0) === '_' ? tempVars : realVars).push(v.name);
 124         }
 125       }
 126       return realVars.sort().concat(tempVars.sort());
 127     };
 128
 129     Scope.prototype.assignedVariables = function() {
 130       var v, _i, _len, _ref1, _results;
 131       _ref1 = this.variables;
 132       _results = [];
 133       for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
 134         v = _ref1[_i];
 135         if (v.type.assigned) {
 136           _results.push("" + v.name + " = " + v.type.value);
 137         }
 138       }
 139       return _results;
 140     };
 141
 142     return Scope;
 143
 144   })();
 145
 146 }).call(this);