test262/test/language/statements/let/dstr-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

39 lines
1.4 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/let-stmt.template
/*---
description: SingleNameBinding assigns `name` to "anonymous" classes (`let` statement)
esid: sec-let-and-const-declarations-runtime-semantics-evaluation
es6id: 13.3.1.4
features: [destructuring-binding]
flags: [generated]
info: |
LexicalBinding : BindingPattern Initializer
1. Let rhs be the result of evaluating Initializer.
2. Let value be GetValue(rhs).
3. ReturnIfAbrupt(value).
4. Let env be the running execution context's LexicalEnvironment.
5. Return the result of performing BindingInitialization for BindingPattern
using value and env as the 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).
---*/
let { cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {};
assert.sameValue(cls.name, 'cls');
assert.notSameValue(xCls.name, 'xCls');
assert.notSameValue(xCls2.name, 'xCls2');