tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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obj-ptrn-rest-getter.js (1759B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/obj-ptrn-rest-getter.case
      3 // - src/dstr-binding/default/gen-func-expr.template
      4 /*---
      5 description: Getter is called when obj is being deconstructed to a rest Object (generator function expression)
      6 esid: sec-generator-function-definitions-runtime-semantics-evaluation
      7 features: [object-rest, generators, destructuring-binding]
      8 flags: [generated]
      9 includes: [propertyHelper.js]
     10 info: |
     11    GeneratorExpression : function * ( FormalParameters ) { GeneratorBody }
     12 
     13        [...]
     14        3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters,
     15           GeneratorBody, scope, strict).
     16        [...]
     17 
     18    9.2.1 [[Call]] ( thisArgument, argumentsList)
     19 
     20    [...]
     21    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
     22    [...]
     23 
     24    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
     25 
     26    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
     27    [...]
     28 
     29    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
     30 
     31    [...]
     32    23. Let iteratorRecord be Record {[[iterator]]:
     33        CreateListIterator(argumentsList), [[done]]: false}.
     34    24. If hasDuplicates is true, then
     35        [...]
     36    25. Else,
     37        b. Let formalStatus be IteratorBindingInitialization for formals with
     38           iteratorRecord and env as arguments.
     39    [...]
     40 ---*/
     41 var count = 0;
     42 
     43 var callCount = 0;
     44 var f;
     45 f = function*({...x}) {
     46  assert.sameValue(count, 1);
     47 
     48  verifyProperty(x, "v", {
     49    enumerable: true,
     50    writable: true,
     51    configurable: true,
     52    value: 2
     53  });
     54  callCount = callCount + 1;
     55 };
     56 
     57 f({ get v() { count++; return 2; } }).next();
     58 assert.sameValue(callCount, 1, 'generator function invoked exactly once');
     59 
     60 reportCompare(0, 0);