--- /dev/null
+// Generated by CoffeeScript 1.10.0
+(function() {
+ var Scope,
+ 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; };
+
+ exports.Scope = Scope = (function() {
+ function Scope(parent, expressions, method, referencedVars) {
+ var ref, ref1;
+ this.parent = parent;
+ this.expressions = expressions;
+ this.method = method;
+ this.referencedVars = referencedVars;
+ this.variables = [
+ {
+ name: 'arguments',
+ type: 'arguments'
+ }
+ ];
+ this.positions = {};
+ if (!this.parent) {
+ this.utilities = {};
+ }
+ this.root = (ref = (ref1 = this.parent) != null ? ref1.root : void 0) != null ? ref : this;
+ }
+
+ Scope.prototype.add = function(name, type, immediate) {
+ if (this.shared && !immediate) {
+ return this.parent.add(name, type, immediate);
+ }
+ if (Object.prototype.hasOwnProperty.call(this.positions, name)) {
+ return this.variables[this.positions[name]].type = type;
+ } else {
+ return this.positions[name] = this.variables.push({
+ name: name,
+ type: type
+ }) - 1;
+ }
+ };
+
+ Scope.prototype.namedMethod = function() {
+ var ref;
+ if (((ref = this.method) != null ? ref.name : void 0) || !this.parent) {
+ return this.method;
+ }
+ return this.parent.namedMethod();
+ };
+
+ Scope.prototype.find = function(name) {
+ if (this.check(name)) {
+ return true;
+ }
+ this.add(name, 'var');
+ return false;
+ };
+
+ Scope.prototype.parameter = function(name) {
+ if (this.shared && this.parent.check(name, true)) {
+ return;
+ }
+ return this.add(name, 'param');
+ };
+
+ Scope.prototype.check = function(name) {
+ var ref;
+ return !!(this.type(name) || ((ref = this.parent) != null ? ref.check(name) : void 0));
+ };
+
+ Scope.prototype.temporary = function(name, index, single) {
+ if (single == null) {
+ single = false;
+ }
+ if (single) {
+ return (index + parseInt(name, 36)).toString(36).replace(/\d/g, 'a');
+ } else {
+ return name + (index || '');
+ }
+ };
+
+ Scope.prototype.type = function(name) {
+ var i, len, ref, v;
+ ref = this.variables;
+ for (i = 0, len = ref.length; i < len; i++) {
+ v = ref[i];
+ if (v.name === name) {
+ return v.type;
+ }
+ }
+ return null;
+ };
+
+ Scope.prototype.freeVariable = function(name, options) {
+ var index, ref, temp;
+ if (options == null) {
+ options = {};
+ }
+ index = 0;
+ while (true) {
+ temp = this.temporary(name, index, options.single);
+ if (!(this.check(temp) || indexOf.call(this.root.referencedVars, temp) >= 0)) {
+ break;
+ }
+ index++;
+ }
+ if ((ref = options.reserve) != null ? ref : true) {
+ this.add(temp, 'var', true);
+ }
+ return temp;
+ };
+
+ Scope.prototype.assign = function(name, value) {
+ this.add(name, {
+ value: value,
+ assigned: true
+ }, true);
+ return this.hasAssignments = true;
+ };
+
+ Scope.prototype.hasDeclarations = function() {
+ return !!this.declaredVariables().length;
+ };
+
+ Scope.prototype.declaredVariables = function() {
+ var v;
+ return ((function() {
+ var i, len, ref, results;
+ ref = this.variables;
+ results = [];
+ for (i = 0, len = ref.length; i < len; i++) {
+ v = ref[i];
+ if (v.type === 'var') {
+ results.push(v.name);
+ }
+ }
+ return results;
+ }).call(this)).sort();
+ };
+
+ Scope.prototype.assignedVariables = function() {
+ var i, len, ref, results, v;
+ ref = this.variables;
+ results = [];
+ for (i = 0, len = ref.length; i < len; i++) {
+ v = ref[i];
+ if (v.type.assigned) {
+ results.push(v.name + " = " + v.type.value);
+ }
+ }
+ return results;
+ };
+
+ return Scope;
+
+ })();
+
+}).call(this);