Source code
Revision control
Copy as Markdown
Other Tools
// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
// - src/dstr-binding/default/cls-expr-private-gen-meth-static.template
/*---
description: BindingElement with array binding pattern and initializer is used (private static class expression generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [class, class-static-methods-private, generators, destructuring-binding]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. 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
b. Else,
Let status be the result of performing PropertyDefinitionEvaluation
for m with arguments F and false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
13.3.3.6 Runtime Semantics: IteratorBindingInitialization
BindingElement : BindingPatternInitializer opt
[...]
2. If iteratorRecord.[[done]] is true, let v be undefined.
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be ? GetValue(defaultValue).
4. Return the result of performing BindingInitialization of BindingPattern
with v and environment as the arguments.
---*/
var values = [2, 1, 3];
var callCount = 0;
var C = class {
static * #method([[...x] = values]) {
assert(Array.isArray(x));
assert.sameValue(x[0], 2);
assert.sameValue(x[1], 1);
assert.sameValue(x[2], 3);
assert.sameValue(x.length, 3);
assert.notSameValue(x, values);
callCount = callCount + 1;
}
static get method() {
return this.#method;
}
};
C.method([]).next();
assert.sameValue(callCount, 1, 'method invoked exactly once');
reportCompare(0, 0);