tor-browser

The Tor Browser
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gen-meth-obj-ptrn-id-init-fn-name-gen.js (2445B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
      3 // - src/dstr-binding/default/gen-meth.template
      4 /*---
      5 description: SingleNameBinding assigns name to "anonymous" generator functions (generator method)
      6 esid: sec-generator-function-definitions-runtime-semantics-propertydefinitionevaluation
      7 features: [generators, destructuring-binding]
      8 flags: [generated]
      9 info: |
     10    GeneratorMethod :
     11        * PropertyName ( StrictFormalParameters ) { GeneratorBody }
     12 
     13    1. Let propKey be the result of evaluating PropertyName.
     14    2. ReturnIfAbrupt(propKey).
     15    3. If the function code for this GeneratorMethod is strict mode code,
     16       let strict be true. Otherwise let strict be false.
     17    4. Let scope be the running execution context's LexicalEnvironment.
     18    5. Let closure be GeneratorFunctionCreate(Method,
     19       StrictFormalParameters, GeneratorBody, scope, strict).
     20    [...]
     21 
     22    9.2.1 [[Call]] ( thisArgument, argumentsList)
     23 
     24    [...]
     25    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
     26    [...]
     27 
     28    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
     29 
     30    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
     31    [...]
     32 
     33    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
     34 
     35    [...]
     36    23. Let iteratorRecord be Record {[[iterator]]:
     37        CreateListIterator(argumentsList), [[done]]: false}.
     38    24. If hasDuplicates is true, then
     39        [...]
     40    25. Else,
     41        b. Let formalStatus be IteratorBindingInitialization for formals with
     42           iteratorRecord and env as arguments.
     43    [...]
     44 
     45    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
     46 
     47    SingleNameBinding : BindingIdentifier Initializeropt
     48 
     49    [...]
     50    6. If Initializer is present and v is undefined, then
     51       [...]
     52       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
     53          i. Let hasNameProperty be HasOwnProperty(v, "name").
     54          ii. ReturnIfAbrupt(hasNameProperty).
     55          iii. If hasNameProperty is false, perform SetFunctionName(v,
     56               bindingId).
     57 
     58 ---*/
     59 
     60 var callCount = 0;
     61 var obj = {
     62  *method({ gen = function* () {}, xGen = function* x() {} }) {
     63    assert.sameValue(gen.name, 'gen');
     64    assert.notSameValue(xGen.name, 'xGen');
     65    callCount = callCount + 1;
     66  }
     67 };
     68 
     69 obj.method({}).next();
     70 assert.sameValue(callCount, 1, 'generator method invoked exactly once');
     71 
     72 reportCompare(0, 0);