JSTests/test262/test/language/statements/class/dstr/async-gen-meth-static-obj-ptrn-prop-ary.js

// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-ary.case
// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
/*---
description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression async generator method)
esid: sec-runtime-semantics-bindingclassdeclarationevaluation
features: [async-iteration]
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
        b. Else,
           Let status be the result of performing PropertyDefinitionEvaluation for
           m with arguments F and false.
    [...]

    Runtime Semantics: PropertyDefinitionEvaluation

    AsyncGeneratorMethod :
        async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
            { AsyncGeneratorBody }

    1. Let propKey be the result of evaluating PropertyName.
    2. ReturnIfAbrupt(propKey).
    3. If the function code for this AsyncGeneratorMethod 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 ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
       AsyncGeneratorBody, scope, strict).
    [...]


    13.3.3.7 Runtime Semantics: KeyedBindingInitialization

    [...]
    3. If Initializer is present and v is undefined, then
       [...]
    4. Return the result of performing BindingInitialization for BindingPattern
       passing v and environment as arguments.
---*/


var callCount = 0;
class C {
  static async *method({ w: [x, y, z] = [4, 5, 6] }) {
    assert.sameValue(x, 7);
    assert.sameValue(y, undefined);
    assert.sameValue(z, undefined);

    assert.throws(ReferenceError, function() {
      w;
    });
    callCount = callCount + 1;
  }
};

C.method({ w: [7, undefined, ] }).next().then(() => {
    assert.sameValue(callCount, 1, 'invoked exactly once');    
}).then($DONE, $DONE);