108 lines
3.0 KiB
JavaScript
108 lines
3.0 KiB
JavaScript
(function() {
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var Scope;
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var __hasProp = Object.prototype.hasOwnProperty;
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if (!((typeof process !== "undefined" && process !== null))) {
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this.exports = this;
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}
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exports.Scope = (function() {
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Scope = function(parent, expressions, method) {
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var _a;
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_a = [parent, expressions, method];
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this.parent = _a[0];
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this.expressions = _a[1];
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this.method = _a[2];
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this.variables = {};
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if (this.parent) {
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this.tempVar = this.parent.tempVar;
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} else {
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Scope.root = this;
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this.tempVar = '_a';
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}
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return this;
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};
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Scope.root = null;
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Scope.prototype.find = function(name) {
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if (this.check(name)) {
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return true;
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}
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this.variables[name] = 'var';
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return false;
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};
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Scope.prototype.any = function(fn) {
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var _a, k, v;
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_a = this.variables;
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for (v in _a) {
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if (!__hasProp.call(_a, v)) continue;
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k = _a[v];
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if (fn(v, k)) {
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return true;
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}
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}
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return false;
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};
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Scope.prototype.parameter = function(name) {
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return (this.variables[name] = 'param');
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};
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Scope.prototype.check = function(name) {
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if (this.variables.hasOwnProperty(name)) {
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return true;
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}
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return !!(this.parent && this.parent.check(name));
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};
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Scope.prototype.freeVariable = function() {
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var ordinal;
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while (this.check(this.tempVar)) {
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ordinal = 1 + parseInt(this.tempVar.substr(1), 36);
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this.tempVar = '_' + ordinal.toString(36).replace(/\d/g, 'a');
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}
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this.variables[this.tempVar] = 'var';
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return this.tempVar;
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};
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Scope.prototype.assign = function(name, value) {
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return (this.variables[name] = {
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value: value,
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assigned: true
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});
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};
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Scope.prototype.hasDeclarations = function(body) {
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return body === this.expressions && this.any(function(k, val) {
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return val === 'var';
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});
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};
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Scope.prototype.hasAssignments = function(body) {
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return body === this.expressions && this.any(function(k, val) {
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return val.assigned;
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});
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};
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Scope.prototype.declaredVariables = function() {
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var _a, _b, key, val;
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return (function() {
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_a = []; _b = this.variables;
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for (key in _b) {
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if (!__hasProp.call(_b, key)) continue;
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val = _b[key];
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val === 'var' ? _a.push(key) : null;
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}
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return _a;
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}).call(this).sort();
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};
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Scope.prototype.assignedVariables = function() {
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var _a, _b, key, val;
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_a = []; _b = this.variables;
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for (key in _b) {
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if (!__hasProp.call(_b, key)) continue;
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val = _b[key];
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val.assigned ? _a.push(("" + (key) + " = " + (val.value))) : null;
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}
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return _a;
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};
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Scope.prototype.compiledDeclarations = function() {
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return this.declaredVariables().join(', ');
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};
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Scope.prototype.compiledAssignments = function() {
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return this.assignedVariables().join(', ');
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};
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return Scope;
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}).call(this);
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})();
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