test262/test/language/expressions/class/async-gen-meth-static-dflt-params-ref-prior.js

// This file was procedurally generated from the following sources:
// - src/function-forms/dflt-params-ref-prior.case
// - src/function-forms/default/cls-expr-async-gen-meth-static.template
/*---
description: Referencing a parameter that occurs earlier in the ParameterList (static class expression async generator method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, async-iteration]
flags: [generated, async]
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.
    [...]

    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).
    [...]


    14.1.19 Runtime Semantics: IteratorBindingInitialization

    FormalsList : FormalsList , FormalParameter

    1. Let status be the result of performing IteratorBindingInitialization for
       FormalsList using iteratorRecord and environment as the arguments.
    2. ReturnIfAbrupt(status).
    3. Return the result of performing IteratorBindingInitialization for
       FormalParameter using iteratorRecord and environment as the arguments.

---*/
var x = 0;

var callCount = 0;
var C = class {
  static async *method(x, y = x, z = y) {
    assert.sameValue(x, 3, 'first argument value');
    assert.sameValue(y, 3, 'second argument value');
    assert.sameValue(z, 3, 'third argument value');
    callCount = callCount + 1;
  }
}

// Stores a reference `ref` for case evaluation
var ref = C.method;

ref(3).next().then(() => {
    assert.sameValue(callCount, 1, 'method invoked exactly once');
}).then($DONE, $DONE);