Mike Pennisi 779a59f30c Import tests from Google V8 (generators semantics)
These tests are derived from the following files within the Google V8
project:

    test/mjsunit/es6/generators-iteration.js
    test/mjsunit/es6/generators-objects.js
    test/mjsunit/es6/generators-runtime.js
    test/mjsunit/es6/generators-states.js
2015-05-07 19:11:47 -04:00

34 lines
1.0 KiB
JavaScript

// Copyright (C) 2013 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 25.2
description: >
Generator function instances are correctly reported as instances of the
GeneratorFunction intrinsic.
---*/
var GeneratorFunction = Object.getPrototypeOf(function* () {}).constructor;
function* gDecl() {}
var gExpr = function* () {};
assert(
gDecl instanceof GeneratorFunction,
'Generators created via GeneratorDeclaration syntax are proper instances of GeneratorFunction'
);
assert(
gExpr instanceof GeneratorFunction,
'Generators created via GeneratorExpression syntax are proper instances of GeneratorFunction'
);
assert(
new GeneratorFunction() instanceof GeneratorFunction,
'Generators created via constructor invocation of GeneratorFunction are proper instances of GeneratorFunction'
);
assert(
GeneratorFunction() instanceof GeneratorFunction,
'Generators created via function invocation of GeneratorFunction are proper instances of GeneratorFunction'
);