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90 lines
3.1 KiB
JavaScript
90 lines
3.1 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/obj-ptrn-prop-obj-init.case
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// - src/dstr-binding/default/cls-expr-gen-meth-static-dflt.template
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/*---
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description: Object binding pattern with "nested" object binding pattern using initializer (static class expression generator method (default parameter))
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esid: sec-class-definitions-runtime-semantics-evaluation
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features: [generators, destructuring-binding, default-parameters]
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flags: [generated]
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info: |
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ClassExpression : class BindingIdentifieropt ClassTail
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1. If BindingIdentifieropt is not present, let className be undefined.
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2. Else, let className be StringValue of BindingIdentifier.
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3. Let value be the result of ClassDefinitionEvaluation of ClassTail
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with argument className.
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[...]
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14.5.14 Runtime Semantics: ClassDefinitionEvaluation
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21. For each ClassElement m in order from methods
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a. If IsStatic of m is false, then
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b. Else,
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Let status be the result of performing PropertyDefinitionEvaluation
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for m with arguments F and false.
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[...]
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14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
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GeneratorMethod :
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* PropertyName ( StrictFormalParameters ) { GeneratorBody }
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1. Let propKey be the result of evaluating PropertyName.
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2. ReturnIfAbrupt(propKey).
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3. If the function code for this GeneratorMethod is strict mode code,
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let strict be true. Otherwise let strict be false.
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4. Let scope be the running execution context's LexicalEnvironment.
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5. Let closure be GeneratorFunctionCreate(Method,
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StrictFormalParameters, GeneratorBody, scope, strict).
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9.2.1 [[Call]] ( thisArgument, argumentsList)
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[...]
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7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
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[...]
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9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
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1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
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[...]
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9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
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[...]
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23. Let iteratorRecord be Record {[[iterator]]:
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CreateListIterator(argumentsList), [[done]]: false}.
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24. If hasDuplicates is true, then
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[...]
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25. Else,
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b. Let formalStatus be IteratorBindingInitialization for formals with
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iteratorRecord and env as arguments.
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[...]
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13.3.3.7 Runtime Semantics: KeyedBindingInitialization
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[...]
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3. If Initializer is present and v is undefined, then
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a. Let defaultValue be the result of evaluating Initializer.
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b. Let v be GetValue(defaultValue).
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c. ReturnIfAbrupt(v).
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4. Return the result of performing BindingInitialization for BindingPattern
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passing v and environment as arguments.
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---*/
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var callCount = 0;
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var C = class {
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static *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
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assert.sameValue(x, 4);
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assert.sameValue(y, 5);
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assert.sameValue(z, 6);
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assert.throws(ReferenceError, function() {
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w;
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});
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callCount = callCount + 1;
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}
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};
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C.method().next();
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assert.sameValue(callCount, 1, 'method invoked exactly once');
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