155 lines
33 KiB
JavaScript
155 lines
33 KiB
JavaScript
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(function() {
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var escope, expect, harmony;
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expect = require('chai').expect;
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harmony = require('../third_party/esprima');
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escope = require('..');
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describe('ES6 class', function() {
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it('declaration name creates class scope', function() {
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var ast, scope, scopeManager;
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ast = harmony.parse("class Derived extends Base {\n constructor() {\n }\n}\nnew Derived();");
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scopeManager = escope.analyze(ast, {
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ecmaVersion: 6
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});
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expect(scopeManager.scopes).to.have.length(3);
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scope = scopeManager.scopes[0];
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expect(scope.type).to.be.equal('global');
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expect(scope.block.type).to.be.equal('Program');
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expect(scope.isStrict).to.be["false"];
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expect(scope.variables).to.have.length(1);
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expect(scope.variables[0].name).to.be.equal('Derived');
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expect(scope.references).to.have.length(2);
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expect(scope.references[0].identifier.name).to.be.equal('Base');
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expect(scope.references[1].identifier.name).to.be.equal('Derived');
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scope = scopeManager.scopes[1];
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expect(scope.type).to.be.equal('class');
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expect(scope.block.type).to.be.equal('ClassDeclaration');
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expect(scope.isStrict).to.be["true"];
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expect(scope.variables).to.have.length(1);
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expect(scope.variables[0].name).to.be.equal('Derived');
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expect(scope.references).to.have.length(0);
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scope = scopeManager.scopes[2];
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expect(scope.type).to.be.equal('function');
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expect(scope.block.type).to.be.equal('FunctionExpression');
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expect(scope.isStrict).to.be["true"];
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expect(scope.variables).to.have.length(1);
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expect(scope.variables[0].name).to.be.equal('arguments');
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return expect(scope.references).to.have.length(0);
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});
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it('declaration name creates class scope', function() {
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var ast, scope, scopeManager;
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ast = harmony.parse("class Base {\n constructor() {\n }\n}\nlet foo = new Base();");
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scopeManager = escope.analyze(ast, {
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ecmaVersion: 6
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});
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expect(scopeManager.scopes).to.have.length(3);
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scope = scopeManager.scopes[0];
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expect(scope.type).to.be.equal('global');
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expect(scope.block.type).to.be.equal('Program');
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expect(scope.isStrict).to.be["false"];
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expect(scope.variables).to.have.length(2);
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expect(scope.variables[0].name).to.be.equal('Base');
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expect(scope.variables[1].name).to.be.equal('foo');
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expect(scope.through).to.have.length(0);
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expect(scope.references).to.have.length(2);
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expect(scope.references[0].identifier.name).to.be.equal('foo');
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expect(scope.references[1].identifier.name).to.be.equal('Base');
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scope = scopeManager.scopes[1];
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expect(scope.type).to.be.equal('class');
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expect(scope.block.type).to.be.equal('ClassDeclaration');
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expect(scope.isStrict).to.be["true"];
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expect(scope.variables).to.have.length(1);
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console.dir(scope.variables);
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expect(scope.variables[0].name).to.be.equal('Base');
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expect(scope.references).to.have.length(0);
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scope = scopeManager.scopes[2];
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expect(scope.type).to.be.equal('function');
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expect(scope.block.type).to.be.equal('FunctionExpression');
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expect(scope.isStrict).to.be["true"];
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expect(scope.variables).to.have.length(1);
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expect(scope.variables[0].name).to.be.equal('arguments');
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return expect(scope.references).to.have.length(0);
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});
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it('expression name creates class scope#1', function() {
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var ast, scope, scopeManager;
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ast = harmony.parse("(class Derived extends Base {\n constructor() {\n }\n});");
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scopeManager = escope.analyze(ast, {
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ecmaVersion: 6
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});
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expect(scopeManager.scopes).to.have.length(3);
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scope = scopeManager.scopes[0];
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expect(scope.type).to.be.equal('global');
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expect(scope.block.type).to.be.equal('Program');
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expect(scope.isStrict).to.be["false"];
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expect(scope.variables).to.have.length(0);
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expect(scope.references).to.have.length(1);
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expect(scope.references[0].identifier.name).to.be.equal('Base');
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scope = scopeManager.scopes[1];
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expect(scope.type).to.be.equal('class');
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expect(scope.block.type).to.be.equal('ClassExpression');
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expect(scope.isStrict).to.be["true"];
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expect(scope.variables).to.have.length(1);
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expect(scope.variables[0].name).to.be.equal('Derived');
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expect(scope.references).to.have.length(0);
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scope = scopeManager.scopes[2];
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expect(scope.type).to.be.equal('function');
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return expect(scope.block.type).to.be.equal('FunctionExpression');
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});
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it('expression name creates class scope#2', function() {
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var ast, scope, scopeManager;
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ast = harmony.parse("(class extends Base {\n constructor() {\n }\n});");
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scopeManager = escope.analyze(ast, {
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ecmaVersion: 6
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});
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expect(scopeManager.scopes).to.have.length(3);
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scope = scopeManager.scopes[0];
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expect(scope.type).to.be.equal('global');
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expect(scope.block.type).to.be.equal('Program');
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expect(scope.isStrict).to.be["false"];
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expect(scope.variables).to.have.length(0);
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expect(scope.references).to.have.length(1);
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expect(scope.references[0].identifier.name).to.be.equal('Base');
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scope = scopeManager.scopes[1];
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expect(scope.type).to.be.equal('class');
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expect(scope.block.type).to.be.equal('ClassExpression');
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scope = scopeManager.scopes[2];
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expect(scope.type).to.be.equal('function');
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return expect(scope.block.type).to.be.equal('FunctionExpression');
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});
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return it('computed property key may refer variables', function() {
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var ast, scope, scopeManager;
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ast = harmony.parse("(function () {\n var yuyushiki = 42;\n (class {\n [yuyushiki]() {\n }\n\n [yuyushiki + 40]() {\n }\n });\n}());");
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scopeManager = escope.analyze(ast, {
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ecmaVersion: 6
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});
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expect(scopeManager.scopes).to.have.length(5);
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scope = scopeManager.scopes[0];
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expect(scope.type).to.be.equal('global');
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expect(scope.block.type).to.be.equal('Program');
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expect(scope.isStrict).to.be["false"];
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scope = scopeManager.scopes[1];
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expect(scope.type).to.be.equal('function');
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expect(scope.block.type).to.be.equal('FunctionExpression');
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expect(scope.isStrict).to.be["false"];
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expect(scope.variables).to.have.length(2);
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expect(scope.variables[0].name).to.be.equal('arguments');
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expect(scope.variables[1].name).to.be.equal('yuyushiki');
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expect(scope.references).to.have.length(1);
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expect(scope.references[0].identifier.name).to.be.equal('yuyushiki');
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scope = scopeManager.scopes[2];
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expect(scope.type).to.be.equal('class');
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expect(scope.block.type).to.be.equal('ClassExpression');
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expect(scope.isStrict).to.be["true"];
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expect(scope.variables).to.have.length(0);
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expect(scope.references).to.have.length(2);
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expect(scope.references[0].identifier.name).to.be.equal('yuyushiki');
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return expect(scope.references[1].identifier.name).to.be.equal('yuyushiki');
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});
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});
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}).call(this);
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