152 lines
3.8 KiB
JavaScript
152 lines
3.8 KiB
JavaScript
// Generated by CoffeeScript 2.0.0-beta1
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(function() {
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var Scope,
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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; };
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exports.Scope = Scope = class Scope {
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constructor(parent, expressions, method, referencedVars) {
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var ref, ref1;
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this.parent = parent;
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this.expressions = expressions;
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this.method = method;
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this.referencedVars = referencedVars;
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this.variables = [
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{
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name: 'arguments',
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type: 'arguments'
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}
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];
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this.positions = {};
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if (!this.parent) {
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this.utilities = {};
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}
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this.root = (ref = (ref1 = this.parent) != null ? ref1.root : void 0) != null ? ref : this;
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}
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add(name, type, immediate) {
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if (this.shared && !immediate) {
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return this.parent.add(name, type, immediate);
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}
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if (Object.prototype.hasOwnProperty.call(this.positions, name)) {
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return this.variables[this.positions[name]].type = type;
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} else {
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return this.positions[name] = this.variables.push({name, type}) - 1;
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}
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}
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namedMethod() {
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var ref;
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if (((ref = this.method) != null ? ref.name : void 0) || !this.parent) {
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return this.method;
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}
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return this.parent.namedMethod();
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}
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find(name, type = 'var') {
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if (this.check(name)) {
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return true;
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}
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this.add(name, type);
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return false;
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}
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parameter(name) {
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if (this.shared && this.parent.check(name, true)) {
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return;
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}
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return this.add(name, 'param');
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}
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check(name) {
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var ref;
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return !!(this.type(name) || ((ref = this.parent) != null ? ref.check(name) : void 0));
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}
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temporary(name, index, single = false) {
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var diff, endCode, letter, newCode, num, startCode;
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if (single) {
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startCode = name.charCodeAt(0);
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endCode = 'z'.charCodeAt(0);
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diff = endCode - startCode;
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newCode = startCode + index % (diff + 1);
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letter = String.fromCharCode(newCode);
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num = Math.floor(index / (diff + 1));
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return `${letter}${num || ''}`;
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} else {
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return `${name}${index || ''}`;
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}
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}
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type(name) {
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var i, len, ref, v;
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ref = this.variables;
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for (i = 0, len = ref.length; i < len; i++) {
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v = ref[i];
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if (v.name === name) {
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return v.type;
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}
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}
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return null;
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}
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freeVariable(name, options = {}) {
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var index, ref, temp;
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index = 0;
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while (true) {
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temp = this.temporary(name, index, options.single);
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if (!(this.check(temp) || indexOf.call(this.root.referencedVars, temp) >= 0)) {
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break;
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}
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index++;
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}
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if ((ref = options.reserve) != null ? ref : true) {
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this.add(temp, 'var', true);
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}
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return temp;
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}
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assign(name, value) {
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this.add(name, {
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value,
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assigned: true
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}, true);
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return this.hasAssignments = true;
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}
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hasDeclarations() {
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return !!this.declaredVariables().length;
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}
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declaredVariables() {
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var v;
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return ((function() {
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var i, len, ref, results;
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ref = this.variables;
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results = [];
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for (i = 0, len = ref.length; i < len; i++) {
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v = ref[i];
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if (v.type === 'var') {
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results.push(v.name);
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}
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}
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return results;
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}).call(this)).sort();
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}
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assignedVariables() {
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var i, len, ref, results, v;
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ref = this.variables;
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results = [];
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for (i = 0, len = ref.length; i < len; i++) {
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v = ref[i];
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if (v.type.assigned) {
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results.push(`${v.name} = ${v.type.value}`);
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}
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}
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return results;
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}
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};
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}).call(this);
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