mirror of https://github.com/tc39/test262.git
Merge pull request #1039 from rwaldron/dstr-assignment_for-await-of
[WIP] for-await-of: dstr-assignment, templates & cases
This commit is contained in:
Rick Waldron
GitHub
commit
60a6a7c81e
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@ -0,0 +1,28 @@
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: >
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If the Initializer is present and v is undefined, the Initializer should be
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evaluated and the result assigned to the target reference.
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template: default
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---*/
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//- setup
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let v2, vNull, vHole, vUndefined, vOob;
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//- elems
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[v2 = 10, vNull = 11, vHole = 12, vUndefined = 13, vOob = 14]
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//- vals
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[2, null, , undefined]
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//- body
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assert.sameValue(v2, 2);
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assert.sameValue(vNull, null);
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assert.sameValue(vHole, 12);
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assert.sameValue(vUndefined, 13);
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assert.sameValue(vOob, 14);
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//- teardown
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promise
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: >
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The Initializer should only be evaluated if v is undefined.
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template: default
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---*/
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//- setup
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let flag1 = false, flag2 = false;
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let _;
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//- elems
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[ _ = flag1 = true, _ = flag2 = true ]
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//- vals
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[14]
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//- body
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assert.sameValue(flag1, false);
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assert.sameValue(flag2, true);
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//- teardown
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promise
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: Assignment of function `name` attribute (ArrowFunction)
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template: default
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info: >
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AssignmentElement[Yield] : DestructuringAssignmentTarget Initializeropt
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[...]
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7. If Initializer is present and value is undefined and
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IsAnonymousFunctionDefinition(Initializer) and IsIdentifierRef of
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DestructuringAssignmentTarget are both true, then
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a. Let hasNameProperty be ? HasOwnProperty(v, "name").
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b. If hasNameProperty is false, perform SetFunctionName(v, GetReferencedName(lref)).
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includes: [propertyHelper.js]
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---*/
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//- setup
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let arrow;
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//- elems
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[ arrow = () => {} ]
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//- vals
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[]
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//- body
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assert.sameValue(arrow.name, 'arrow');
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verifyNotEnumerable(arrow, 'name');
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verifyNotWritable(arrow, 'name');
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verifyConfigurable(arrow, 'name');
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//- teardown
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promise
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: Assignment of function `name` attribute (ClassExpression)
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template: default
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info: >
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AssignmentElement[Yield] : DestructuringAssignmentTarget Initializeropt
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[...]
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7. If Initializer is present and value is undefined and
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IsAnonymousFunctionDefinition(Initializer) and IsIdentifierRef of
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DestructuringAssignmentTarget are both true, then
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a. Let hasNameProperty be ? HasOwnProperty(v, "name").
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b. If hasNameProperty is false, perform SetFunctionName(v, GetReferencedName(lref)).
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includes: [propertyHelper.js]
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features: [class]
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---*/
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//- setup
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let xCls, cls, xCls2;
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//- elems
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[ xCls = class x {}, cls = class {}, xCls2 = class { static name() {} } ]
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//- vals
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[]
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//- body
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assert(xCls.name !== 'xCls');
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assert(xCls2.name !== 'xCls2');
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assert.sameValue(cls.name, 'cls');
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verifyNotEnumerable(cls, 'name');
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verifyNotWritable(cls, 'name');
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verifyConfigurable(cls, 'name');
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//- teardown
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promise
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: >
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Assignment of function `name` attribute (CoverParenthesizedExpression)
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template: default
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info: >
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AssignmentElement[Yield] : DestructuringAssignmentTarget Initializeropt
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[...]
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7. If Initializer is present and value is undefined and
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IsAnonymousFunctionDefinition(Initializer) and IsIdentifierRef of
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DestructuringAssignmentTarget are both true, then
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a. Let hasNameProperty be ? HasOwnProperty(v, "name").
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b. If hasNameProperty is false, perform SetFunctionName(v, GetReferencedName(lref)).
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includes: [propertyHelper.js]
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---*/
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//- setup
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let xCover, cover;
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//- elems
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[ xCover = (0, function() {}), cover = (function() {}) ]
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//- vals
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[]
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//- body
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assert(xCover.name !== 'xCover');
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assert.sameValue(cover.name, 'cover');
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verifyNotEnumerable(cover, 'name');
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verifyNotWritable(cover, 'name');
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verifyConfigurable(cover, 'name');
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//- teardown
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promise
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: Assignment of function `name` attribute (FunctionExpression)
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template: default
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info: >
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AssignmentElement[Yield] : DestructuringAssignmentTarget Initializeropt
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[...]
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7. If Initializer is present and value is undefined and
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IsAnonymousFunctionDefinition(Initializer) and IsIdentifierRef of
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DestructuringAssignmentTarget are both true, then
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a. Let hasNameProperty be ? HasOwnProperty(v, "name").
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b. If hasNameProperty is false, perform SetFunctionName(v, GetReferencedName(lref)).
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includes: [propertyHelper.js]
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features: [class]
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---*/
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//- setup
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let xFnexp, fnexp;
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//- elems
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[ xFnexp = function x() {}, fnexp = function() {} ]
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//- vals
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[]
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//- body
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assert(xFnexp.name !== 'xFnexp');
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assert.sameValue(fnexp.name, 'fnexp');
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verifyNotEnumerable(fnexp, 'name');
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verifyNotWritable(fnexp, 'name');
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verifyConfigurable(fnexp, 'name');
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//- teardown
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promise
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: Assignment of function `name` attribute (GeneratorExpression)
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template: default
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info: >
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AssignmentElement[Yield] : DestructuringAssignmentTarget Initializeropt
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[...]
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7. If Initializer is present and value is undefined and
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IsAnonymousFunctionDefinition(Initializer) and IsIdentifierRef of
|
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DestructuringAssignmentTarget are both true, then
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a. Let hasNameProperty be ? HasOwnProperty(v, "name").
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b. If hasNameProperty is false, perform SetFunctionName(v, GetReferencedName(lref)).
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includes: [propertyHelper.js]
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features: [generators]
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---*/
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//- setup
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let xGen, gen;
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//- elems
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[ xGen = function* x() {}, gen = function*() {} ]
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//- vals
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[]
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//- body
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assert.notSameValue(xGen.name, 'xGen');
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assert.sameValue(gen.name, 'gen');
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verifyNotEnumerable(gen, 'name');
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verifyNotWritable(gen, 'name');
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verifyConfigurable(gen, 'name');
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//- teardown
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promise
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: >
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The Initializer in an AssignmentElement may be an `in` expression.
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template: default
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---*/
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//- setup
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let x;
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//- elems
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[ x = 'x' in {} ]
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//- vals
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[]
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//- body
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assert.sameValue(x, false);
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//- teardown
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promise
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: >
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Value retrieval of Initializer obeys `let` semantics.
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template: default
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es6id: 12.14.5.3
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features: [let]
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---*/
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//- setup
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let x;
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//- elems
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[ x = y ]
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//- vals
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[]
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//- teardown
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promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
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assert.sameValue(constructor, ReferenceError);
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}).then($DONE, $DONE);
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let y;
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@ -0,0 +1,25 @@
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: >
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Initializer values should be assigned in left-to-right order.
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template: default
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---*/
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//- setup
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let x = 0;
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let a, b;
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//- elems
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[ a = x += 1, b = x *= 2 ]
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//- vals
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[]
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//- body
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assert.sameValue(a, 1);
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assert.sameValue(b, 2);
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assert.sameValue(x, 2);
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//- teardown
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promise
|
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
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// This code is governed by the BSD license found in the LICENSE file.
|
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|
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/*---
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desc: >
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Identifiers that appear as the DestructuringAssignmentTarget in an
|
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AssignmentElement should take on the iterated value corresponding to their
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position in the ArrayAssignmentPattern.
|
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template: default
|
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flags: [noStrict]
|
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---*/
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//- setup
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let argument, eval;
|
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//- elems
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[arguments = 4, eval = 5]
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//- vals
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[]
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//- body
|
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assert.sameValue(arguments, 4);
|
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assert.sameValue(eval, 5);
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//- teardown
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promise
|
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.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
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.then($DONE, $DONE);
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
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desc: >
|
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When a `yield` token appears within the Initializer of an
|
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AssignmentElement within a generator function body, it behaves as a
|
||||
YieldExpression.
|
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template: async-generator
|
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es6id: 12.14.5.4
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features: [generators]
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---*/
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//- setup
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||||
let value = [];
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let x;
|
||||
//- elems
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||||
[ x = yield ]
|
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//- vals
|
||||
[]
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//- teardown
|
||||
iter.next().then(result => {
|
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assert.sameValue(result.value, undefined);
|
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assert.sameValue(result.done, false);
|
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assert.sameValue(x, undefined);
|
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|
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iter.next(4).then(result => {
|
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assert.sameValue(result.value, undefined);
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assert.sameValue(result.done, true);
|
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assert.sameValue(x, 4);
|
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}, $DONE).then($DONE, $DONE);
|
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}, $DONE).catch($DONE);
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|
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|
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// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the Initializer of an AssignmentElement
|
||||
outside of a generator function body, it behaves as an IdentifierReference.
|
||||
template: error-async-function-syntax
|
||||
es6id: 12.14.5.4
|
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flags: [onlyStrict]
|
||||
negative:
|
||||
phase: early
|
||||
type: SyntaxError
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[ x = yield ]
|
||||
//- vals
|
||||
[]
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the Initializer of an AssignmentElement
|
||||
outside of a generator function body, it behaves as an IdentifierReference.
|
||||
template: async-function
|
||||
es6id: 12.14.5.4
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let yield = 4;
|
||||
let x;
|
||||
//- elems
|
||||
[ x = yield ]
|
||||
//- vals
|
||||
[]
|
||||
//- body
|
||||
assert.sameValue(x, 4);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: Abrupt completion returned from GetIterator
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ AssignmentElementList ]
|
||||
|
||||
1. Let iterator be ? GetIterator(value).
|
||||
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
throw new Test262Error();
|
||||
}
|
||||
};
|
||||
let _;
|
||||
|
||||
//- elems
|
||||
[ _ ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,47 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: Abrupt completion returned from IteratorClose
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ AssignmentElementList ]
|
||||
|
||||
[...]
|
||||
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
|
||||
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let _;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
throw new Test262Error();
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ _ ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose throws a TypeError when `return` returns a non-Object value
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ AssignmentElementList ]
|
||||
|
||||
[...]
|
||||
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
|
||||
5. Return result.
|
||||
|
||||
7.4.6 IteratorClose( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
6. If completion.[[Type]] is throw, return Completion(completion).
|
||||
7. If innerResult.[[Type]] is throw, return Completion(innerResult).
|
||||
8. If Type(innerResult.[[Value]]) is not Object, throw a TypeError exception.
|
||||
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let _;
|
||||
let nextCount = 0;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
return null;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ _ ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,48 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is not called when assignment evaluation has exhausted the
|
||||
iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ AssignmentElementList ]
|
||||
|
||||
[...]
|
||||
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
|
||||
5. Return result.
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let _;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
return { done: true };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
return {};
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ _ ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 0);
|
||||
|
||||
//- teardown
|
||||
iter.next().then(() => {
|
||||
assert.sameValue(iterCount, 1);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,62 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is called when assignment evaluation has not exhausted the
|
||||
iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ AssignmentElementList ]
|
||||
|
||||
[...]
|
||||
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
|
||||
5. Return result.
|
||||
|
||||
7.4.6 IteratorClose ( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
[...]
|
||||
features: [Symbol.iterator]
|
||||
template: default
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let thisValue = null;
|
||||
let args = null;
|
||||
let _;
|
||||
let iterable = {};
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
thisValue = this;
|
||||
args = arguments;
|
||||
return {};
|
||||
}
|
||||
};
|
||||
iterable[Symbol.iterator] = function() {
|
||||
return iterator;
|
||||
};
|
||||
//- elems
|
||||
[ _ ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(thisValue, iterator, 'correct `this` value');
|
||||
assert(!!args, 'arguments object provided');
|
||||
assert.sameValue(args.length, 0, 'zero arguments specified');
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,49 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose throws a TypeError when `return` returns a non-Object value
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ AssignmentElementList ]
|
||||
|
||||
[...]
|
||||
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
|
||||
5. Return result.
|
||||
|
||||
7.4.6 IteratorClose( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
6. If completion.[[Type]] is throw, return Completion(completion).
|
||||
7. If innerResult.[[Type]] is throw, return Completion(innerResult).
|
||||
8. If Type(innerResult.[[Value]]) is not Object, throw a TypeError exception.
|
||||
|
||||
features: [Symbol.iterator, generators]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let unreachable = 0;
|
||||
let iterator = {
|
||||
return() {
|
||||
return null;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ {}[yield] ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
unreachable += 1;
|
||||
//- teardown
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(unreachable, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is not called when iteration produces an abrupt completion
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ AssignmentElementList ]
|
||||
|
||||
[...]
|
||||
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
|
||||
5. Return result.
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
throw new Test262Error();
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
let _;
|
||||
|
||||
//- elems
|
||||
[ x ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 0);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
It is a Syntax Error if LeftHandSideExpression is either an ObjectLiteral
|
||||
or an ArrayLiteral and if the lexical token sequence matched by
|
||||
LeftHandSideExpression cannot be parsed with no tokens left over using
|
||||
AssignmentPattern as the goal symbol.
|
||||
template: error-async-function-syntax
|
||||
es6id: 12.14.5.1
|
||||
negative:
|
||||
phase: early
|
||||
type: SyntaxError
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[[(x, y)]]
|
||||
//- vals
|
||||
[[]]
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the value is
|
||||
`null`, a TypeError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let _;
|
||||
|
||||
//- elems
|
||||
[[ _ ]]
|
||||
//- vals
|
||||
[null]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the value is a
|
||||
"hole", a TypeError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let _;
|
||||
|
||||
//- elems
|
||||
[[ _ ]]
|
||||
//- vals
|
||||
[ , ]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the value is
|
||||
`undefined`, a TypeError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let _;
|
||||
|
||||
//- elems
|
||||
[[ x ]]
|
||||
//- vals
|
||||
[undefined]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and no value is
|
||||
defined, a TypeError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let _;
|
||||
//- elems
|
||||
[[ x ]]
|
||||
//- vals
|
||||
[]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of a
|
||||
nested destructuring assignment and within a generator function body, it
|
||||
behaves as a YieldExpression.
|
||||
template: async-generator
|
||||
es6id: 12.14.5.3
|
||||
features: [generators]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let value = [[22]];
|
||||
let x = {};
|
||||
|
||||
//- elems
|
||||
[[x[yield]]]
|
||||
//- vals
|
||||
value
|
||||
//- teardown
|
||||
iter.next().then(result => {
|
||||
assert.sameValue(result.value, undefined);
|
||||
assert.sameValue(result.done, false);
|
||||
assert.sameValue(x.prop, undefined);
|
||||
|
||||
iter.next('prop').then(result => {
|
||||
assert.sameValue(result.value, undefined);
|
||||
assert.sameValue(result.done, true);
|
||||
assert.sameValue(x.prop, 22);
|
||||
}, $DONE).then($DONE, $DONE);
|
||||
}, $DONE).catch($DONE);
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of a
|
||||
nested destructuring assignment outside of strict mode, it behaves as an
|
||||
IdentifierReference.
|
||||
template: error-async-function-syntax
|
||||
es6id: 12.14.5.3
|
||||
flags: [onlyStrict]
|
||||
negative:
|
||||
phase: early
|
||||
type: SyntaxError
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[[x[yield]]]
|
||||
//- vals
|
||||
[[]]
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of a
|
||||
nested destructuring assignment outside of strict mode, it behaves as an
|
||||
IdentifierReference.
|
||||
template: async-function
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let yield = 'prop';
|
||||
let x = {};
|
||||
//- elems
|
||||
[[x[yield]]]
|
||||
//- vals
|
||||
[[22]]
|
||||
//- body
|
||||
assert.sameValue(x.prop, 22);
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal, it should be parsed
|
||||
parsed as a DestructuringAssignmentPattern and evaluated as a destructuring
|
||||
assignment.
|
||||
template: async-function
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
//- elems
|
||||
[[x]]
|
||||
//- vals
|
||||
[[1]]
|
||||
//- body
|
||||
assert.sameValue(x, 1);
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
It is a Syntax Error if LeftHandSideExpression is either an ObjectLiteral
|
||||
or an ArrayLiteral and if the lexical token sequence matched by
|
||||
LeftHandSideExpression cannot be parsed with no tokens left over using
|
||||
AssignmentPattern as the goal symbol.
|
||||
template: error-async-function-syntax
|
||||
es6id: 12.14.5.1
|
||||
negative:
|
||||
phase: early
|
||||
type: SyntaxError
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[{ get x() {} }]
|
||||
//- vals
|
||||
[{}]
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an object literal and the value is
|
||||
`null`, a TypeError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
//- elems
|
||||
[{ x }]
|
||||
//- vals
|
||||
[null]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an object literal and the value is a
|
||||
"hole", a TypeError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
|
||||
//- elems
|
||||
[{ x }]
|
||||
//- vals
|
||||
[ , ]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an object literal and the value is
|
||||
`undefined`, a TypeError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
|
||||
//- elems
|
||||
[{ x }]
|
||||
//- vals
|
||||
[undefined]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an object literal and no value is
|
||||
defined, a TypeError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
|
||||
//- elems
|
||||
[{ x }]
|
||||
//- vals
|
||||
[]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the Initializer of a nested
|
||||
destructuring assignment and within a generator function body, it behaves
|
||||
as a YieldExpression.
|
||||
template: async-generator
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
|
||||
|
||||
//- elems
|
||||
[{ x = yield }]
|
||||
//- vals
|
||||
[{}]
|
||||
//- teardown
|
||||
iter.next().then(result => {
|
||||
assert.sameValue(result.value, undefined);
|
||||
assert.sameValue(result.done, false);
|
||||
assert.sameValue(x, undefined);
|
||||
|
||||
iter.next(4).then(result => {
|
||||
assert.sameValue(result.value, undefined);
|
||||
assert.sameValue(result.done, true);
|
||||
assert.sameValue(x, 4);
|
||||
}, $DONE).then($DONE, $DONE);
|
||||
}, $DONE).catch($DONE);
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the Initializer of a nested
|
||||
destructuring assignment outside of a generator function body, it behaves
|
||||
as a IdentifierReference.
|
||||
template: error-async-function-syntax
|
||||
es6id: 12.14.5.3
|
||||
flags: [onlyStrict]
|
||||
negative:
|
||||
phase: early
|
||||
type: SyntaxError
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[{ x = yield }]
|
||||
//- vals
|
||||
[{}]
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the Initializer of a nested
|
||||
destructuring assignment outside of a generator function body, it behaves
|
||||
as an IdentifierReference.
|
||||
template: async-function
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let yield = 2;
|
||||
let x;
|
||||
//- elems
|
||||
[{ x = yield }]
|
||||
//- vals
|
||||
[{}]
|
||||
//- body
|
||||
assert.sameValue(x, 2);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an object literal, it should be
|
||||
parsed as a DestructuringAssignmentPattern and evaluated as a destructuring
|
||||
assignment.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
//- elems
|
||||
[{ x }]
|
||||
//- vals
|
||||
[{ x: 2 }]
|
||||
//- body
|
||||
assert.sameValue(x, 2);
|
||||
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
The assignment target should obey `const` semantics.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
features: [const]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
const c = null;
|
||||
//- elems
|
||||
[ c ]
|
||||
//- vals
|
||||
[1]
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
The assignment target should obey `let` semantics.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
features: [let]
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[ x ]
|
||||
//- vals
|
||||
[]
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, ReferenceError);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
let x;
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
If the DestructuringAssignmentTarget of an AssignmentElement is a
|
||||
PropertyReference, it should not be evaluated.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x, setValue;
|
||||
x = {
|
||||
get y() {
|
||||
$ERROR('The property should not be accessed.');
|
||||
},
|
||||
set y(val) {
|
||||
setValue = val;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[x.y]
|
||||
//- vals
|
||||
[23]
|
||||
//- body
|
||||
assert.sameValue(setValue, 23);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
Any error raised as a result of setting the value should be forwarded to
|
||||
the runtime.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = {
|
||||
set y(val) {
|
||||
throw new Test262Error();
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[x.y]
|
||||
//- vals
|
||||
[23]
|
||||
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
The DestructuringAssignmentTarget of an AssignmentElement may be a
|
||||
PropertyReference.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = {};
|
||||
//- elems
|
||||
[x.y]
|
||||
//- vals
|
||||
[4]
|
||||
//- body
|
||||
assert.sameValue(x.y, 4);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
Outside of strict mode, if the the assignment target is an unresolvable
|
||||
reference, a new `var` binding should be created in the environment record.
|
||||
template: default
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[ unresolvable ]
|
||||
//- vals
|
||||
[]
|
||||
//- body
|
||||
assert.sameValue(unresolvable, undefined);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
In strict mode, if the the assignment target is an unresolvable reference,
|
||||
a ReferenceError should be thrown.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
flags: [onlyStrict]
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[ unresolvable ]
|
||||
//- vals
|
||||
[]
|
||||
|
||||
//- teardown
|
||||
promise.then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, ReferenceError);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
Identifiers that appear as the DestructuringAssignmentTarget in an
|
||||
AssignmentElement should take on the iterated value corresponding to their
|
||||
position in the ArrayAssignmentPattern.
|
||||
template: async-function
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x, y, z;
|
||||
//- elems
|
||||
[x, y, z]
|
||||
//- vals
|
||||
[1, 2, 3]
|
||||
//- body
|
||||
assert.sameValue(x, 1);
|
||||
assert.sameValue(y, 2);
|
||||
assert.sameValue(z, 3);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
Identifiers that appear as the DestructuringAssignmentTarget in an
|
||||
AssignmentElement should take on the iterated value corresponding to their
|
||||
position in the ArrayAssignmentPattern.
|
||||
template: async-generator
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let argument, eval;
|
||||
//- elems
|
||||
[arguments, eval]
|
||||
//- vals
|
||||
[2, 3]
|
||||
//- body
|
||||
assert.sameValue(arguments, 2);
|
||||
assert.sameValue(eval, 3);
|
||||
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
It is a Syntax Error if LeftHandSideExpression is neither an
|
||||
ObjectLiteral nor an ArrayLiteral and
|
||||
IsValidSimpleAssignmentTarget(LeftHandSideExpression) is
|
||||
false.
|
||||
template: error-async-function-syntax
|
||||
es6id: 12.14.5.1
|
||||
flags: [onlyStrict]
|
||||
negative:
|
||||
phase: early
|
||||
type: SyntaxError
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[arguments]
|
||||
//- vals
|
||||
[]
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of an
|
||||
AssignmentElement within a generator function body, it behaves as a
|
||||
YieldExpression.
|
||||
template: async-generator
|
||||
features: [generators]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let value = [33];
|
||||
let x = {};
|
||||
let iterationResult;
|
||||
|
||||
//- elems
|
||||
[ x[yield] ]
|
||||
//- vals
|
||||
[33]
|
||||
|
||||
|
||||
//- teardown
|
||||
iter.next().then(iterationResult => {
|
||||
assert.sameValue(iterationResult.value, undefined);
|
||||
assert.sameValue(iterationResult.done, false);
|
||||
assert.sameValue(x.prop, undefined);
|
||||
|
||||
iter.next('prop').then(iterationResult => {
|
||||
assert.sameValue(iterationResult.value, undefined);
|
||||
assert.sameValue(iterationResult.done, true);
|
||||
assert.sameValue(x.prop, 33);
|
||||
}).then($DONE, $DONE);
|
||||
});
|
||||
|
|
@ -0,0 +1,20 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of an
|
||||
AssignmentElement and outside of a generator function body, it behaves as
|
||||
an IdentifierReference.
|
||||
template: error-async-function-syntax
|
||||
es6id: 12.14.5.4
|
||||
flags: [onlyStrict]
|
||||
negative:
|
||||
phase: early
|
||||
type: SyntaxError
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[ x[yield] ]
|
||||
//- vals
|
||||
[]
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of an
|
||||
AssignmentElement outside of a generator function body, it behaves as an
|
||||
IdentifierReference.
|
||||
template: async-function
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let yield = 'prop';
|
||||
let x = {};
|
||||
//- elems
|
||||
[ x[yield] ]
|
||||
//- vals
|
||||
[33]
|
||||
//- body
|
||||
assert.sameValue(x.prop, 33);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,63 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: Abrupt completion returned during evaluation of elision
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
6. If Elision is present, then
|
||||
a. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of Elision with
|
||||
iteratorRecord as the argument.
|
||||
b. If status is an abrupt completion, then
|
||||
i. If iteratorRecord.[[done]] is false, return
|
||||
IteratorClose(iterator, status).
|
||||
ii. Return Completion(status).
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
|
||||
if (nextCount === 2) {
|
||||
throw new Test262Error();
|
||||
}
|
||||
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- elems
|
||||
[ x , , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
|
||||
iter.next().then(() => {
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(nextCount, 2);
|
||||
assert.sameValue(returnCount, 0);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
|
||||
}).then($DONE, $DONE);
|
||||
}, $DONE);
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: Abrupt completion returned from IteratorClose
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
6. If Elision is present, then
|
||||
a. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of Elision with
|
||||
iteratorRecord as the argument.
|
||||
b. If status is an abrupt completion, then
|
||||
[...]
|
||||
8. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
||||
status).
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
throw new Test262Error();
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- elems
|
||||
[ x , , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(nextCount, 2);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose throws a TypeError when `return` returns a non-Object value
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
6. If Elision is present, then
|
||||
a. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of Elision with
|
||||
iteratorRecord as the argument.
|
||||
b. If status is an abrupt completion, then
|
||||
[...]
|
||||
8. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
||||
status).
|
||||
|
||||
7.4.6 IteratorClose( iterator, completion )
|
||||
|
||||
[...]
|
||||
6. Let innerResult be Call(return, iterator, « »).
|
||||
7. If completion.[[type]] is throw, return Completion(completion).
|
||||
8. If innerResult.[[type]] is throw, return Completion(innerResult).
|
||||
9. If Type(innerResult.[[value]]) is not Object, throw a TypeError
|
||||
exception.
|
||||
features: [Symbol.iterator]
|
||||
template: default
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
let nextCount = 0;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
return null;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- error
|
||||
TypeError
|
||||
//- elems
|
||||
[ x , , ]
|
||||
//- vals
|
||||
iterable
|
||||
|
|
@ -0,0 +1,57 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: IteratorClose not invoked when elision exhausts the iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
5. If Elision is present, then
|
||||
a. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of Elision with
|
||||
iteratorRecord as the argument.
|
||||
b. If status is an abrupt completion, then
|
||||
|
||||
[...]
|
||||
|
||||
7. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
||||
status).
|
||||
9. Return Completion(status).
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
|
||||
return { done: nextCount > 1 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ x , , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 2);
|
||||
assert.sameValue(returnCount, 0);
|
||||
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: IteratorClose invoked when elision does not exhaust the iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
5. If Elision is present, then
|
||||
a. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of Elision with
|
||||
iteratorRecord as the argument.
|
||||
b. If status is an abrupt completion, then
|
||||
|
||||
[...]
|
||||
|
||||
7. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
||||
status).
|
||||
|
||||
7.4.6 IteratorClose ( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
[...]
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let thisValue = null;
|
||||
let args = null;
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
thisValue = this;
|
||||
args = arguments;
|
||||
return {};
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- elems
|
||||
[ x , , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 2);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(thisValue, iterator, 'correct `this` value');
|
||||
assert(!!args, 'arguments object provided');
|
||||
assert.sameValue(args.length, 0, 'zero arguments specified');
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: Abrupt completion returned from GetIterator
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
1. Let iterator be GetIterator(value).
|
||||
2. ReturnIfAbrupt(iterator).
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
throw new Test262Error();
|
||||
}
|
||||
};
|
||||
let x;
|
||||
//- elems
|
||||
[ x , ]
|
||||
//- vals
|
||||
iterable
|
||||
|
||||
//- teardown
|
||||
iter.return().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: Abrupt completion returned from IteratorClose
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
2. Let iteratorRecord be Record {[[Iterator]]: iterator, [[Done]]: false}.
|
||||
3. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
|
||||
iteratorRecord as the argument.
|
||||
4. If status is an abrupt completion, then
|
||||
a. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status).
|
||||
b. Return Completion(status).
|
||||
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let thrower = function() {
|
||||
throw new Test262Error();
|
||||
};
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
throw new Test262Error();
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- error
|
||||
Test262Error
|
||||
//- elems
|
||||
[ x , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,65 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose throws a TypeError when `return` returns a non-Object value
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
2. Let iteratorRecord be Record {[[Iterator]]: iterator, [[Done]]: false}.
|
||||
3. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
|
||||
iteratorRecord as the argument.
|
||||
4. If status is an abrupt completion, then
|
||||
a. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status).
|
||||
b. Return Completion(status).
|
||||
|
||||
7.4.6 IteratorClose( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
6. If completion.[[type]] is throw, return Completion(completion).
|
||||
7. If innerResult.[[type]] is throw, return Completion(innerResult).
|
||||
8. If Type(innerResult.[[value]]) is not Object, throw a TypeError
|
||||
exception.
|
||||
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
let nextCount = 0;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
return null;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- error
|
||||
TypeError
|
||||
//- elems
|
||||
[ x , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.return().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,57 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is not invoked when evaluation of AssignmentElementList
|
||||
exhausts the iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
2. Let iteratorRecord be Record {[[iterator]]: iterator, [[done]]: false}.
|
||||
3. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
|
||||
iteratorRecord as the argument.
|
||||
4. If status is an abrupt completion, then
|
||||
a. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
||||
status).
|
||||
b. Return Completion(status).
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let thrower = function() {
|
||||
throw new Test262Error();
|
||||
};
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
return { done: true };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ x , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 0);
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,70 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is invoked when evaluation of AssignmentElementList completes
|
||||
without exhausting the iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
2. Let iteratorRecord be Record {[[iterator]]: iterator, [[done]]: false}.
|
||||
3. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
|
||||
iteratorRecord as the argument.
|
||||
4. If status is an abrupt completion, then
|
||||
a. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
||||
status).
|
||||
b. Return Completion(status).
|
||||
|
||||
7.4.6 IteratorClose ( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
[...]
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let thisValue = null;
|
||||
let args = null;
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
thisValue = this;
|
||||
args = arguments;
|
||||
return {};
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ x , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(thisValue, iterator, 'correct `this` value');
|
||||
assert(!!args, 'arguments object provided');
|
||||
assert.sameValue(args.length, 0, 'zero arguments specified');
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is invoked when evaluation of AssignmentElementList returns
|
||||
a "return" completion and the iterator has not been marked as "done"
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
2. Let iteratorRecord be Record {[[Iterator]]: iterator, [[Done]]: false}.
|
||||
3. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
|
||||
iteratorRecord as the argument.
|
||||
4. If status is an abrupt completion, then
|
||||
a. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status).
|
||||
b. Return Completion(status).
|
||||
|
||||
7.4.6 IteratorClose( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
6. If completion.[[type]] is throw, return Completion(completion).
|
||||
7. If innerResult.[[type]] is throw, return Completion(innerResult).
|
||||
|
||||
features: [Symbol.iterator, generators]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let returnCount = 0;
|
||||
let unreachable = 0;
|
||||
let iterator = {
|
||||
return() {
|
||||
returnCount += 1;
|
||||
|
||||
throw new Test262Error();
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- elems
|
||||
[ {}[yield] , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
unreachable += 1;
|
||||
//- teardown
|
||||
iter.return().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(unreachable, 0, 'Unreachable statement was not executed');
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose throws a TypeError when `return` returns a non-Object value
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
2. Let iteratorRecord be Record {[[Iterator]]: iterator, [[Done]]: false}.
|
||||
3. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
|
||||
iteratorRecord as the argument.
|
||||
4. If status is an abrupt completion, then
|
||||
a. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status).
|
||||
b. Return Completion(status).
|
||||
|
||||
7.4.6 IteratorClose( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
6. If completion.[[type]] is throw, return Completion(completion).
|
||||
7. If innerResult.[[type]] is throw, return Completion(innerResult).
|
||||
8. If Type(innerResult.[[value]]) is not Object, throw a TypeError
|
||||
exception.
|
||||
|
||||
features: [Symbol.iterator, generators]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let iterator = {
|
||||
return() {
|
||||
return null;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
//- elems
|
||||
[ {}[yield] , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.return().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, TypeError);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,68 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is invoked when evaluation of AssignmentElementList returns
|
||||
a "return" completion and the iterator has not been marked as "done"
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
2. Let iteratorRecord be Record {[[Iterator]]: iterator, [[Done]]: false}.
|
||||
3. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
|
||||
iteratorRecord as the argument.
|
||||
4. If status is an abrupt completion, then
|
||||
a. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status).
|
||||
b. Return Completion(status).
|
||||
|
||||
7.4.6 IteratorClose( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
6. If completion.[[type]] is throw, return Completion(completion).
|
||||
7. If innerResult.[[type]] is throw, return Completion(innerResult).
|
||||
|
||||
features: [Symbol.iterator, generators]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let returnCount = 0;
|
||||
let unreachable = 0;
|
||||
let thisValue = null;
|
||||
let args = null;
|
||||
let iterator = {
|
||||
return() {
|
||||
returnCount += 1;
|
||||
thisValue = this;
|
||||
args = arguments;
|
||||
return {};
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
//- elems
|
||||
[ {}[yield] , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
unreachable += 1;
|
||||
//- teardown
|
||||
iter.return(888).then(result => {
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(unreachable, 0, 'Unreachable statement was not executed');
|
||||
assert.sameValue(result.value, 888);
|
||||
assert(result.done, 'Iterator correctly closed');
|
||||
assert.sameValue(thisValue, iterator, 'correct `this` value');
|
||||
assert(!!args, 'arguments object provided');
|
||||
assert.sameValue(args.length, 0, 'zero arguments specified');
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is not invoked when evaluation of AssignmentElementList
|
||||
returns an abrupt completion and the iterator has been marked as "done"
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
3. Let iteratorRecord be Record {[[iterator]]: iterator, [[done]]: false}.
|
||||
4. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
|
||||
iteratorRecord as the argument.
|
||||
5. If status is an abrupt completion, then
|
||||
a. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
|
||||
status).
|
||||
b. Return Completion(status).
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let iterable = {};
|
||||
let thrower = function() {
|
||||
throw new Test262Error();
|
||||
};
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
throw new Test262Error();
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
}
|
||||
};
|
||||
iterable[Symbol.iterator] = function() {
|
||||
return iterator;
|
||||
};
|
||||
let x;
|
||||
//- error
|
||||
Test262Error
|
||||
//- elems
|
||||
[ x , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.next().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 0);
|
||||
assert.sameValue(iterCount, 0);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is not called when rest element evaluation has exhausted the
|
||||
iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
6. If AssignmentRestElement is present, then
|
||||
a. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentRestElement
|
||||
with iteratorRecord as the argument.
|
||||
7. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status).
|
||||
8. Return Completion(status).
|
||||
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let x, y;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
return { value: nextCount, done: nextCount > 1 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ x , ...y ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.next().then(() => {
|
||||
iter.return().then(() => {
|
||||
assert.sameValue(nextCount, 2, 'nextCount');
|
||||
assert.sameValue(returnCount, 0, 'returnCount');
|
||||
assert.sameValue(x, 1, 'x');
|
||||
assert.sameValue(y.length, 0, 'y.length');
|
||||
}).then($DONE, $DONE);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is called when AssignmentRestEvaluation produces a "return"
|
||||
completion due to reference evaluation
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
6. If AssignmentRestElement is present, then
|
||||
a. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentRestElement
|
||||
with iteratorRecord as the argument.
|
||||
7. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status).
|
||||
8. Return Completion(status).
|
||||
|
||||
7.4.6 IteratorClose ( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
6. If completion.[[type]] is throw, return Completion(completion).
|
||||
7. If innerResult.[[type]] is throw, return Completion(innerResult).
|
||||
|
||||
features: [Symbol.iterator, generators]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let unreachable = 0;
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
|
||||
throw new Test262Error();
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- elems
|
||||
[ x , ...{}[yield] ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
unreachable += 1;
|
||||
//- teardown
|
||||
iter.next().then(() => {
|
||||
iter.return().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
}).then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose throws a TypeError when `return` returns a non-Object value
|
||||
info: |
|
||||
ArrayAssignmentPattern :
|
||||
[ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
|
||||
|
||||
[...]
|
||||
6. If AssignmentRestElement is present, then
|
||||
a. Let status be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentRestElement
|
||||
with iteratorRecord as the argument.
|
||||
7. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, status).
|
||||
8. Return Completion(status).
|
||||
|
||||
7.4.6 IteratorClose ( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
6. If completion.[[type]] is throw, return Completion(completion).
|
||||
7. If innerResult.[[type]] is throw, return Completion(innerResult).
|
||||
|
||||
features: [Symbol.iterator, generators]
|
||||
template: async-generator
|
||||
es6id: 12.14.5.2
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
return null;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- elems
|
||||
[ x , ...{}[yield] ]
|
||||
//- vals
|
||||
iterable
|
||||
//- teardown
|
||||
iter.return().then(() => $DONE('Promise incorrectly fulfilled.'), ({ constructor }) => {
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(constructor, Test262Error);
|
||||
}).then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,49 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is not called when iteration has exhausted the iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ Elision ]
|
||||
|
||||
1. Let iterator be ? GetIterator(value).
|
||||
|
||||
[...]
|
||||
|
||||
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result)..
|
||||
[...]
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
return { done: true };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
return {};
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 0);
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,67 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is called when assignment evaluation has not exhausted the
|
||||
iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ Elision ]
|
||||
|
||||
1. Let iterator be ? GetIterator(value).
|
||||
|
||||
[...]
|
||||
|
||||
4. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result)..
|
||||
[...]
|
||||
|
||||
7.4.6 IteratorClose ( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
[...]
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let thisValue = null;
|
||||
let args = null;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
// Set an upper-bound to limit unnecessary iteration in non-conformant
|
||||
// implementations
|
||||
return { done: nextCount > 10 };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
thisValue = this;
|
||||
args = arguments;
|
||||
return {};
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
|
||||
//- elems
|
||||
[ , ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(thisValue, iterator, 'correct `this` value');
|
||||
assert(!!args, 'arguments object provided');
|
||||
assert.sameValue(args.length, 0, 'zero arguments specified');
|
||||
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
An ArrayAssignmentPattern containing only Elisions requires iterable values
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[,]
|
||||
//- vals
|
||||
[]
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
An ArrayAssignmentPattern containing only Elisions requires iterable values
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[,]
|
||||
//- vals
|
||||
'string literal'
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: Iterator is closed without iterating
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ ]
|
||||
|
||||
1. Let iterator be GetIterator(value).
|
||||
2. ReturnIfAbrupt(iterator).
|
||||
3. Return IteratorClose(iterator, NormalCompletion(empty)).
|
||||
|
||||
7.4.6 IteratorClose ( iterator, completion )
|
||||
|
||||
[...]
|
||||
5. Let innerResult be Call(return, iterator, « »).
|
||||
[...]
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let thisValue = null;
|
||||
let args = null;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
return { done: true };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
thisValue = this;
|
||||
args = arguments;
|
||||
return {};
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 0);
|
||||
assert.sameValue(returnCount, 1);
|
||||
assert.sameValue(thisValue, iterator, 'correct `this` value');
|
||||
assert(!!args, 'arguments object provided');
|
||||
assert.sameValue(args.length, 0, 'zero arguments specified');
|
||||
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
An ArrayAssignmentPattern without an AssignmentElementList requires
|
||||
iterable values.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[]
|
||||
//- vals
|
||||
[]
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
An ArrayAssignmentPattern without an AssignmentElementList requires
|
||||
iterable values.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[]
|
||||
//- vals
|
||||
'string literal'
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
An AssignmentRestElement following an AssignmentElement consumes all
|
||||
remaining iterable values.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x, y;
|
||||
//- elems
|
||||
[x, ...y]
|
||||
//- vals
|
||||
[1, 2, 3]
|
||||
//- body
|
||||
assert.sameValue(x, 1);
|
||||
assert.sameValue(y.length, 2);
|
||||
assert.sameValue(y[0], 2);
|
||||
assert.sameValue(y[1], 3);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
An AssignmentRestElement following an elision consumes all remaining
|
||||
iterable values.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
//- elems
|
||||
[, ...x]
|
||||
//- vals
|
||||
[1, 2, 3]
|
||||
//- body
|
||||
assert.sameValue(x.length, 2);
|
||||
assert.sameValue(x[0], 2);
|
||||
assert.sameValue(x[1], 3);
|
||||
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
ArrayAssignmentPattern may include elisions at any position preceeding a
|
||||
AssignmentRestElement in a AssignmentElementList.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x, y;
|
||||
//- elems
|
||||
[, , x, , ...y]
|
||||
//- vals
|
||||
[1, 2, 3, 4, 5, 6]
|
||||
//- body
|
||||
assert.sameValue(x, 3);
|
||||
assert.sameValue(y.length, 2);
|
||||
assert.sameValue(y[0], 5);
|
||||
assert.sameValue(y[1], 6);
|
||||
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: >
|
||||
IteratorClose is not called when assignment evaluation has exhausted the
|
||||
iterator
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ]
|
||||
|
||||
[...]
|
||||
4. Let result be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentRestElement
|
||||
with iteratorRecord as the argument.
|
||||
5. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
|
||||
6. Return result.
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let x;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
return { done: true };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
}
|
||||
};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[ ...x ]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 0);
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
In the presense of an AssignmentRestElement, value iteration exhausts the
|
||||
iterable value;
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
features: [generators]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let count = 0;
|
||||
let g = function*() {
|
||||
count += 1;
|
||||
yield;
|
||||
count += 1;
|
||||
yield;
|
||||
count += 1;
|
||||
}
|
||||
let x;
|
||||
//- elems
|
||||
[...x]
|
||||
//- vals
|
||||
g()
|
||||
//- body
|
||||
assert.sameValue(count, 3);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
/*---
|
||||
desc: Reference is evaluated during assignment
|
||||
info: |
|
||||
ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ]
|
||||
|
||||
[...]
|
||||
4. Let result be the result of performing
|
||||
IteratorDestructuringAssignmentEvaluation of AssignmentRestElement
|
||||
with iteratorRecord as the argument.
|
||||
5. If iteratorRecord.[[Done]] is false, return ? IteratorClose(iterator, result).
|
||||
|
||||
|
||||
AssignmentRestElement[Yield] : ... DestructuringAssignmentTarget
|
||||
|
||||
1. If DestructuringAssignmentTarget is neither an ObjectLiteral nor an
|
||||
ArrayLiteral, then
|
||||
a. Let lref be the result of evaluating DestructuringAssignmentTarget.
|
||||
b. ReturnIfAbrupt(lref).
|
||||
[...]
|
||||
features: [Symbol.iterator]
|
||||
template: async-generator
|
||||
esid: sec-runtime-semantics-destructuringassignmentevaluation
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let nextCount = 0;
|
||||
let returnCount = 0;
|
||||
let iterator = {
|
||||
next() {
|
||||
nextCount += 1;
|
||||
return { done: true };
|
||||
},
|
||||
return() {
|
||||
returnCount += 1;
|
||||
}
|
||||
};
|
||||
let obj = {};
|
||||
let iterable = {
|
||||
[Symbol.iterator]() {
|
||||
return iterator;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[...obj['a' + 'b']]
|
||||
//- vals
|
||||
iterable
|
||||
//- body
|
||||
assert.sameValue(nextCount, 1);
|
||||
assert.sameValue(returnCount, 0);
|
||||
assert(!!obj.ab);
|
||||
assert.sameValue(obj.ab.length, 0);
|
||||
|
||||
//- teardown
|
||||
iter.next()
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the iterable
|
||||
emits `null` as the only value, an array with a single `null` element
|
||||
should be used as the value of the nested DestructuringAssignment.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x, y;
|
||||
//- elems
|
||||
[...[x, y]]
|
||||
//- vals
|
||||
[null]
|
||||
//- body
|
||||
assert.sameValue(x, null);
|
||||
assert.sameValue(y, undefined);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the iterable is
|
||||
an array with a "hole", an array with a single `undefined` element should
|
||||
be used as the value of the nested DestructuringAssignment.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = null;
|
||||
//- elems
|
||||
[...[x]]
|
||||
//- vals
|
||||
[ , ]
|
||||
//- body
|
||||
assert.sameValue(x, undefined);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the iterable
|
||||
emits `undefined` as the only value, an array with a single `undefined`
|
||||
element should be used as the value of the nested DestructuringAssignment.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = null;
|
||||
//- elems
|
||||
[...[x]]
|
||||
//- vals
|
||||
[undefined]
|
||||
//- body
|
||||
assert.sameValue(x, undefined);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the iterable is
|
||||
emits no values, an empty array should be used as the value of the nested
|
||||
DestructuringAssignment.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = null;
|
||||
//- elems
|
||||
[...[x]]
|
||||
//- vals
|
||||
[]
|
||||
//- body
|
||||
assert.sameValue(x, undefined);
|
||||
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of a
|
||||
nested destructuring assignment and within a generator function body, it
|
||||
should behave as a YieldExpression.
|
||||
template: async-generator
|
||||
features: [generators]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = {};
|
||||
|
||||
//- elems
|
||||
[...[x[yield]]]
|
||||
//- vals
|
||||
[86]
|
||||
//- teardown
|
||||
iter.next().then(iterationResult => {
|
||||
assert.sameValue(iterationResult.value, undefined);
|
||||
assert.sameValue(iterationResult.done, false);
|
||||
assert.sameValue(x.prop, undefined);
|
||||
|
||||
iter.next('prop').then(iterationResult => {
|
||||
assert.sameValue(iterationResult.value, undefined);
|
||||
assert.sameValue(iterationResult.done, true);
|
||||
assert.sameValue(x.prop, 86);
|
||||
}).then($DONE, $DONE);
|
||||
});
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of a
|
||||
nested destructuring assignment and outside of a generator function body,
|
||||
it should behave as an IdentifierExpression.
|
||||
template: async-function
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let yield = 'prop';
|
||||
let x = {};
|
||||
//- elems
|
||||
[...[x[yield]]]
|
||||
//- vals
|
||||
[86]
|
||||
//- body
|
||||
assert.sameValue(x.prop, 86);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal, it should be parsed
|
||||
parsed as a DestructuringAssignmentPattern and evaluated as a destructuring
|
||||
assignment.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
//- elems
|
||||
[...[x]]
|
||||
//- vals
|
||||
[1, 2, 3]
|
||||
//- body
|
||||
assert.sameValue(x, 1);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an object literal and the iterable
|
||||
emits `null` as the only value, an array with a single `null` element
|
||||
should be used as the value of the nested DestructuringAssignment.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x, length;
|
||||
//- elems
|
||||
[...{ 0: x, length }]
|
||||
//- vals
|
||||
[null]
|
||||
//- body
|
||||
assert.sameValue(x, null);
|
||||
assert.sameValue(length, 1);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the iterable is
|
||||
an array with a "hole", an array with a single `undefined` element should
|
||||
be used as the value of the nested DestructuringAssignment.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = null;
|
||||
// Use the the top-level lexical scope for 'length' to provide compatibility with browsers
|
||||
// where length and name are properties of WindowProxy
|
||||
let length;
|
||||
//- elems
|
||||
[...{ 0: x, length }]
|
||||
//- vals
|
||||
[ , ]
|
||||
//- body
|
||||
assert.sameValue(x, undefined);
|
||||
assert.sameValue(length, 1);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an array literal and the iterable
|
||||
emits `undefined` as the only value, an array with a single `undefined`
|
||||
element should be used as the value of the nested DestructuringAssignment.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = null;
|
||||
// Use the the top-level lexical scope for 'length' to provide compatibility with browsers
|
||||
// where length and name are properties of WindowProxy
|
||||
let length;
|
||||
//- elems
|
||||
[...{ 0: x, length }]
|
||||
//- vals
|
||||
[undefined]
|
||||
//- body
|
||||
assert.sameValue(x, undefined);
|
||||
assert.sameValue(length, 1);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an obect literal and the iterable is
|
||||
emits no values, an empty array should be used as the value of the nested
|
||||
DestructuringAssignment.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = null;
|
||||
// Use the the top-level lexical scope for 'length' to provide compatibility with browsers
|
||||
// where length and name are properties of WindowProxy
|
||||
let length;
|
||||
//- elems
|
||||
[...{ 0: x, length }]
|
||||
//- vals
|
||||
[]
|
||||
//- body
|
||||
assert.sameValue(x, undefined);
|
||||
assert.sameValue(length, 0);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the Initializer of a nested
|
||||
destructuring assignment and within a generator function body, it should
|
||||
behave as a YieldExpression.
|
||||
template: async-generator
|
||||
features: [generators]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
|
||||
//- elems
|
||||
[...{ x = yield }]
|
||||
//- vals
|
||||
[{}]
|
||||
//- teardown
|
||||
iter.next().then(iterationResult => {
|
||||
assert.sameValue(iterationResult.value, undefined);
|
||||
assert.sameValue(iterationResult.done, false);
|
||||
assert.sameValue(x, undefined);
|
||||
|
||||
iter.next(4).then(iterationResult => {
|
||||
assert.sameValue(iterationResult.value, undefined);
|
||||
assert.sameValue(iterationResult.done, true);
|
||||
assert.sameValue(x, 4);
|
||||
}).then($DONE, $DONE);
|
||||
});
|
||||
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the Initializer of a nested
|
||||
destructuring assignment and outside of a generator function body, it
|
||||
should behave as an IdentifierExpression.
|
||||
template: async-function
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let yield = 2;
|
||||
let x;
|
||||
//- elems
|
||||
[...{ x = yield }]
|
||||
//- vals
|
||||
[{}]
|
||||
//- body
|
||||
assert.sameValue(x, 2);
|
||||
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When DestructuringAssignmentTarget is an object literal, it should be
|
||||
parsed as a DestructuringAssignmentPattern and evaluated as a destructuring
|
||||
assignment.
|
||||
template: default
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x;
|
||||
//- elems
|
||||
[...{ 1: x }]
|
||||
//- vals
|
||||
[1, 2, 3]
|
||||
//- body
|
||||
assert.sameValue(x, 2);
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
If the DestructuringAssignmentTarget of an AssignmentElement is a
|
||||
PropertyReference, it should not be evaluated.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let setValue;
|
||||
let x = {
|
||||
get y() {
|
||||
$ERROR('The property should not be accessed.');
|
||||
},
|
||||
set y(val) {
|
||||
setValue = val;
|
||||
}
|
||||
};
|
||||
//- elems
|
||||
[...x.y]
|
||||
//- vals
|
||||
[23, 45, 99]
|
||||
//- body
|
||||
assert.sameValue(setValue.length, 3);
|
||||
assert.sameValue(setValue[0], 23);
|
||||
assert.sameValue(setValue[1], 45);
|
||||
assert.sameValue(setValue[2], 99);
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
The DestructuringAssignmentTarget of an AssignmentElement may be a
|
||||
PropertyReference.
|
||||
template: default
|
||||
es6id: 12.14.5.3
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = {};
|
||||
//- elems
|
||||
[...x.y]
|
||||
//- vals
|
||||
[4, 3, 2]
|
||||
//- body
|
||||
assert.sameValue(x.y.length, 3);
|
||||
assert.sameValue(x.y[0], 4);
|
||||
assert.sameValue(x.y[1], 3);
|
||||
assert.sameValue(x.y[2], 2);
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
Outside of strict mode, if the the assignment target is an unresolvable
|
||||
reference, a new `var` binding should be created in the environment record.
|
||||
template: default
|
||||
flags: [noStrict]
|
||||
---*/
|
||||
|
||||
//- elems
|
||||
[ ...unresolvable ]
|
||||
//- vals
|
||||
[]
|
||||
//- body
|
||||
assert.sameValue(unresolvable.length, 0);
|
||||
//- teardown
|
||||
promise
|
||||
.then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
|
||||
.then($DONE, $DONE);
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
// Copyright (C) 2017 the V8 project authors. All rights reserved.
|
||||
// This code is governed by the BSD license found in the LICENSE file.
|
||||
|
||||
/*---
|
||||
desc: >
|
||||
When a `yield` token appears within the DestructuringAssignmentTarget of
|
||||
an AssignmentRestElement and within the body of a generator function, it
|
||||
should behave as a YieldExpression.
|
||||
template: async-generator
|
||||
features: [generators]
|
||||
---*/
|
||||
|
||||
//- setup
|
||||
let x = {};
|
||||
|
||||
//- elems
|
||||
[...x[yield]]
|
||||
//- vals
|
||||
[33, 44, 55]
|
||||
//- teardown
|
||||
iter.next().then(iterationResult => {
|
||||
assert.sameValue(iterationResult.value, undefined);
|
||||
assert.sameValue(iterationResult.done, false);
|
||||
assert.sameValue(x.prop, undefined);
|
||||
|
||||
iter.next('prop').then(iterationResult => {
|
||||
assert.sameValue(iterationResult.value, undefined);
|
||||
assert.sameValue(iterationResult.done, true);
|
||||
assert.sameValue(x.prop.length, 3);
|
||||
assert.sameValue(x.prop[0], 33);
|
||||
assert.sameValue(x.prop[1], 44);
|
||||
assert.sameValue(x.prop[2], 55);
|
||||
assert.sameValue(iterCount, 1);
|
||||
}).then($DONE, $DONE);
|
||||
});
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue