tor-browser

The Tor Browser
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async-private-gen-meth-static-obj-ptrn-rest-val-obj.js (2368B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/dstr-binding/obj-ptrn-rest-val-obj.case
      4 // - src/dstr-binding/default/cls-decl-async-private-gen-meth-static.template
      5 /*---
      6 description: Rest object contains just unextracted data (private static class expression async generator method)
      7 esid: sec-runtime-semantics-bindingclassdeclarationevaluation
      8 features: [object-rest, class, class-static-methods-private, async-iteration]
      9 flags: [generated, async]
     10 includes: [propertyHelper.js]
     11 info: |
     12    ClassDeclaration : class BindingIdentifier ClassTail
     13 
     14    1. Let className be StringValue of BindingIdentifier.
     15    2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
     16       argument className.
     17    [...]
     18 
     19    14.5.14 Runtime Semantics: ClassDefinitionEvaluation
     20 
     21    21. For each ClassElement m in order from methods
     22        a. If IsStatic of m is false, then
     23        b. Else,
     24           Let status be the result of performing PropertyDefinitionEvaluation for
     25           m with arguments F and false.
     26    [...]
     27 
     28    Runtime Semantics: PropertyDefinitionEvaluation
     29 
     30    AsyncGeneratorMethod :
     31        async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
     32            { AsyncGeneratorBody }
     33 
     34    1. Let propKey be the result of evaluating PropertyName.
     35    2. ReturnIfAbrupt(propKey).
     36    3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
     37       Otherwise let strict be false.
     38    4. Let scope be the running execution context's LexicalEnvironment.
     39    5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
     40       AsyncGeneratorBody, scope, strict).
     41    [...]
     42 
     43 ---*/
     44 
     45 
     46 var callCount = 0;
     47 class C {
     48  static async * #method({a, b, ...rest}) {
     49    assert.sameValue(rest.a, undefined);
     50    assert.sameValue(rest.b, undefined);
     51 
     52    verifyProperty(rest, "x", {
     53      enumerable: true,
     54      writable: true,
     55      configurable: true,
     56      value: 1
     57    });
     58 
     59    verifyProperty(rest, "y", {
     60      enumerable: true,
     61      writable: true,
     62      configurable: true,
     63      value: 2
     64    });
     65    callCount = callCount + 1;
     66  }
     67 
     68  static get method() {
     69    return this.#method;
     70  }
     71 };
     72 
     73 C.method({x: 1, y: 2, a: 5, b: 3}).next().then(() => {
     74    assert.sameValue(callCount, 1, 'invoked exactly once');    
     75 }).then($DONE, $DONE);