mirror of https://github.com/tc39/test262.git
63 lines
2.1 KiB
JavaScript
63 lines
2.1 KiB
JavaScript
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// This file was procedurally generated from the following sources:
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// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
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// - src/dstr-binding/error/cls-expr-async-gen-meth-dflt.template
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/*---
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description: Object binding pattern with "nested" array binding pattern taking the `null` value (class expression async generator method (default parameter))
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esid: sec-class-definitions-runtime-semantics-evaluation
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features: [async-iteration]
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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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i. Let status be the result of performing
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PropertyDefinitionEvaluation for m with arguments proto and
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false.
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[...]
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Runtime Semantics: PropertyDefinitionEvaluation
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AsyncGeneratorMethod :
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async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
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{ AsyncGeneratorBody }
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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 AsyncGeneratorMethod is strict mode code, let strict be true.
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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 ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
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AsyncGeneratorBody, scope, strict).
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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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[...]
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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 C = class {
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async *method({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {
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}
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};
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var method = C.prototype.method;
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assert.throws(TypeError, function() {
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method();
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});
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