test262/test/language/statements/for/dstr-var-obj-ptrn-id-init-fn-name-class.js
jugglinmike 2bfaa0d895 Improve coverage for class "name" inference (#718)
* Extend tests for class "name" inference

Ensure that when a class defines a static "name" method, that method
definition prevents the "name" inference behavior.

* Re-generate tests
2016-07-08 18:37:04 -07:00

57 lines
2.0 KiB
JavaScript

// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
// - src/dstr-binding/default/for-var.template
/*---
description: SingleNameBinding assigns `name` to "anonymous" classes (for statement)
esid: sec-for-statement-runtime-semantics-labelledevaluation
es6id: 13.7.4.7
features: [destructuring-binding]
flags: [generated]
info: |
IterationStatement :
for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
1. Let varDcl be the result of evaluating VariableDeclarationList.
[...]
13.3.2.4 Runtime Semantics: Evaluation
VariableDeclarationList : VariableDeclarationList , VariableDeclaration
1. Let next be the result of evaluating VariableDeclarationList.
2. ReturnIfAbrupt(next).
3. Return the result of evaluating VariableDeclaration.
VariableDeclaration : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let rval be GetValue(rhs).
3. ReturnIfAbrupt(rval).
4. Return the result of performing BindingInitialization for BindingPattern
passing rval and undefined as arguments.
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
SingleNameBinding : BindingIdentifier Initializeropt
[...]
6. If Initializer is present and v is undefined, then
[...]
d. If IsAnonymousFunctionDefinition(Initializer) is true, then
i. Let hasNameProperty be HasOwnProperty(v, "name").
ii. ReturnIfAbrupt(hasNameProperty).
iii. If hasNameProperty is false, perform SetFunctionName(v,
bindingId).
---*/
var iterCount = 0;
for (var { cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}; iterCount < 1; ) {
assert.sameValue(cls.name, 'cls');
assert.notSameValue(xCls.name, 'xCls');
assert.notSameValue(xCls2.name, 'xCls2');
iterCount += 1;
}
assert.sameValue(iterCount, 1, 'Iteration occurred as expected');