tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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obj-ptrn-prop-ary-init.js (2053B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/dstr-binding/obj-ptrn-prop-ary-init.case
      3 // - src/dstr-binding/default/func-decl.template
      4 /*---
      5 description: Object binding pattern with "nested" array binding pattern using initializer (function declaration)
      6 esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
      7 features: [destructuring-binding]
      8 flags: [generated]
      9 info: |
     10    FunctionDeclaration :
     11        function BindingIdentifier ( FormalParameters ) { FunctionBody }
     12 
     13        [...]
     14        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
     15           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    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
     42 
     43    [...]
     44    3. If Initializer is present and v is undefined, then
     45       a. Let defaultValue be the result of evaluating Initializer.
     46       b. Let v be GetValue(defaultValue).
     47       c. ReturnIfAbrupt(v).
     48    4. Return the result of performing BindingInitialization for BindingPattern
     49       passing v and environment as arguments.
     50 ---*/
     51 
     52 var callCount = 0;
     53 function f({ w: [x, y, z] = [4, 5, 6] }) {
     54  assert.sameValue(x, 4);
     55  assert.sameValue(y, 5);
     56  assert.sameValue(z, 6);
     57 
     58  assert.throws(ReferenceError, function() {
     59    w;
     60  });
     61  callCount = callCount + 1;
     62 };
     63 f({});
     64 assert.sameValue(callCount, 1, 'function invoked exactly once');
     65 
     66 reportCompare(0, 0);