mirror of https://github.com/tc39/test262.git
73 lines
2.4 KiB
JavaScript
73 lines
2.4 KiB
JavaScript
// This file was procedurally generated from the following sources:
|
|
// - src/function-forms/dflt-params-arg-val-undefined.case
|
|
// - src/function-forms/default/cls-decl-async-meth.template
|
|
/*---
|
|
description: Use of intializer when argument value is `undefined` (class declaration async method)
|
|
esid: sec-class-definitions-runtime-semantics-evaluation
|
|
features: [default-parameters]
|
|
flags: [generated, async]
|
|
info: |
|
|
ClassDeclaration : class BindingIdentifier ClassTail
|
|
|
|
1. Let className be StringValue of BindingIdentifier.
|
|
2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
|
|
argument className.
|
|
[...]
|
|
|
|
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
|
|
|
|
21. For each ClassElement m in order from methods
|
|
a. If IsStatic of m is false, then
|
|
i. Let status be the result of performing
|
|
PropertyDefinitionEvaluation for m with arguments proto and
|
|
false.
|
|
[...]
|
|
|
|
Runtime Semantics: PropertyDefinitionEvaluation
|
|
|
|
AsyncMethod : async PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
|
|
|
|
1. Let propKey be the result of evaluating PropertyName.
|
|
2. ReturnIfAbrupt(propKey).
|
|
3. If the function code for this AsyncMethod is strict mode code, let strict be true. Otherwise
|
|
let strict be false.
|
|
4. Let scope be the LexicalEnvironment of the running execution context.
|
|
5. Let closure be ! AsyncFunctionCreate(Method, UniqueFormalParameters, AsyncFunctionBody,
|
|
scope, strict).
|
|
[...]
|
|
|
|
|
|
14.1.19 Runtime Semantics: IteratorBindingInitialization
|
|
|
|
FormalsList : FormalsList , FormalParameter
|
|
|
|
[...]
|
|
23. Let iteratorRecord be Record {[[Iterator]]:
|
|
CreateListIterator(argumentsList), [[Done]]: false}.
|
|
24. If hasDuplicates is true, then
|
|
[...]
|
|
25. Else,
|
|
a. Perform ? IteratorBindingInitialization for formals with
|
|
iteratorRecord and env as arguments.
|
|
[...]
|
|
|
|
---*/
|
|
|
|
|
|
var callCount = 0;
|
|
class C {
|
|
async method(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
|
|
assert.sameValue(fromLiteral, 23);
|
|
assert.sameValue(fromExpr, 45);
|
|
assert.sameValue(fromHole, 99);
|
|
callCount = callCount + 1;
|
|
}
|
|
}
|
|
|
|
// Stores a reference `ref` for case evaluation
|
|
var ref = C.prototype.method;
|
|
|
|
ref(undefined, void 0).then(() => {
|
|
assert.sameValue(callCount, 1, 'method invoked exactly once');
|
|
}).then($DONE, $DONE);
|