wallet-core/node_modules/escope/powered-test/es6-class.js

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2017-08-14 05:01:11 +02:00
(function() {
var escope, expect, harmony;
expect = require('chai').expect;
harmony = require('../third_party/esprima');
escope = require('..');
describe('ES6 class', function() {
it('declaration name creates class scope', function() {
var ast, scope, scopeManager;
ast = harmony.parse("class Derived extends Base {\n constructor() {\n }\n}\nnew Derived();");
scopeManager = escope.analyze(ast, {
ecmaVersion: 6
});
expect(scopeManager.scopes).to.have.length(3);
scope = scopeManager.scopes[0];
expect(scope.type).to.be.equal('global');
expect(scope.block.type).to.be.equal('Program');
expect(scope.isStrict).to.be["false"];
expect(scope.variables).to.have.length(1);
expect(scope.variables[0].name).to.be.equal('Derived');
expect(scope.references).to.have.length(2);
expect(scope.references[0].identifier.name).to.be.equal('Base');
expect(scope.references[1].identifier.name).to.be.equal('Derived');
scope = scopeManager.scopes[1];
expect(scope.type).to.be.equal('class');
expect(scope.block.type).to.be.equal('ClassDeclaration');
expect(scope.isStrict).to.be["true"];
expect(scope.variables).to.have.length(1);
expect(scope.variables[0].name).to.be.equal('Derived');
expect(scope.references).to.have.length(0);
scope = scopeManager.scopes[2];
expect(scope.type).to.be.equal('function');
expect(scope.block.type).to.be.equal('FunctionExpression');
expect(scope.isStrict).to.be["true"];
expect(scope.variables).to.have.length(1);
expect(scope.variables[0].name).to.be.equal('arguments');
return expect(scope.references).to.have.length(0);
});
it('declaration name creates class scope', function() {
var ast, scope, scopeManager;
ast = harmony.parse("class Base {\n constructor() {\n }\n}\nlet foo = new Base();");
scopeManager = escope.analyze(ast, {
ecmaVersion: 6
});
expect(scopeManager.scopes).to.have.length(3);
scope = scopeManager.scopes[0];
expect(scope.type).to.be.equal('global');
expect(scope.block.type).to.be.equal('Program');
expect(scope.isStrict).to.be["false"];
expect(scope.variables).to.have.length(2);
expect(scope.variables[0].name).to.be.equal('Base');
expect(scope.variables[1].name).to.be.equal('foo');
expect(scope.through).to.have.length(0);
expect(scope.references).to.have.length(2);
expect(scope.references[0].identifier.name).to.be.equal('foo');
expect(scope.references[1].identifier.name).to.be.equal('Base');
scope = scopeManager.scopes[1];
expect(scope.type).to.be.equal('class');
expect(scope.block.type).to.be.equal('ClassDeclaration');
expect(scope.isStrict).to.be["true"];
expect(scope.variables).to.have.length(1);
console.dir(scope.variables);
expect(scope.variables[0].name).to.be.equal('Base');
expect(scope.references).to.have.length(0);
scope = scopeManager.scopes[2];
expect(scope.type).to.be.equal('function');
expect(scope.block.type).to.be.equal('FunctionExpression');
expect(scope.isStrict).to.be["true"];
expect(scope.variables).to.have.length(1);
expect(scope.variables[0].name).to.be.equal('arguments');
return expect(scope.references).to.have.length(0);
});
it('expression name creates class scope#1', function() {
var ast, scope, scopeManager;
ast = harmony.parse("(class Derived extends Base {\n constructor() {\n }\n});");
scopeManager = escope.analyze(ast, {
ecmaVersion: 6
});
expect(scopeManager.scopes).to.have.length(3);
scope = scopeManager.scopes[0];
expect(scope.type).to.be.equal('global');
expect(scope.block.type).to.be.equal('Program');
expect(scope.isStrict).to.be["false"];
expect(scope.variables).to.have.length(0);
expect(scope.references).to.have.length(1);
expect(scope.references[0].identifier.name).to.be.equal('Base');
scope = scopeManager.scopes[1];
expect(scope.type).to.be.equal('class');
expect(scope.block.type).to.be.equal('ClassExpression');
expect(scope.isStrict).to.be["true"];
expect(scope.variables).to.have.length(1);
expect(scope.variables[0].name).to.be.equal('Derived');
expect(scope.references).to.have.length(0);
scope = scopeManager.scopes[2];
expect(scope.type).to.be.equal('function');
return expect(scope.block.type).to.be.equal('FunctionExpression');
});
it('expression name creates class scope#2', function() {
var ast, scope, scopeManager;
ast = harmony.parse("(class extends Base {\n constructor() {\n }\n});");
scopeManager = escope.analyze(ast, {
ecmaVersion: 6
});
expect(scopeManager.scopes).to.have.length(3);
scope = scopeManager.scopes[0];
expect(scope.type).to.be.equal('global');
expect(scope.block.type).to.be.equal('Program');
expect(scope.isStrict).to.be["false"];
expect(scope.variables).to.have.length(0);
expect(scope.references).to.have.length(1);
expect(scope.references[0].identifier.name).to.be.equal('Base');
scope = scopeManager.scopes[1];
expect(scope.type).to.be.equal('class');
expect(scope.block.type).to.be.equal('ClassExpression');
scope = scopeManager.scopes[2];
expect(scope.type).to.be.equal('function');
return expect(scope.block.type).to.be.equal('FunctionExpression');
});
return it('computed property key may refer variables', function() {
var ast, scope, scopeManager;
ast = harmony.parse("(function () {\n var yuyushiki = 42;\n (class {\n [yuyushiki]() {\n }\n\n [yuyushiki + 40]() {\n }\n });\n}());");
scopeManager = escope.analyze(ast, {
ecmaVersion: 6
});
expect(scopeManager.scopes).to.have.length(5);
scope = scopeManager.scopes[0];
expect(scope.type).to.be.equal('global');
expect(scope.block.type).to.be.equal('Program');
expect(scope.isStrict).to.be["false"];
scope = scopeManager.scopes[1];
expect(scope.type).to.be.equal('function');
expect(scope.block.type).to.be.equal('FunctionExpression');
expect(scope.isStrict).to.be["false"];
expect(scope.variables).to.have.length(2);
expect(scope.variables[0].name).to.be.equal('arguments');
expect(scope.variables[1].name).to.be.equal('yuyushiki');
expect(scope.references).to.have.length(1);
expect(scope.references[0].identifier.name).to.be.equal('yuyushiki');
scope = scopeManager.scopes[2];
expect(scope.type).to.be.equal('class');
expect(scope.block.type).to.be.equal('ClassExpression');
expect(scope.isStrict).to.be["true"];
expect(scope.variables).to.have.length(0);
expect(scope.references).to.have.length(2);
expect(scope.references[0].identifier.name).to.be.equal('yuyushiki');
return expect(scope.references[1].identifier.name).to.be.equal('yuyushiki');
});
});
}).call(this);
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