tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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ary-ptrn-rest-init-id.js (1805B)

      1 // |reftest| error:SyntaxError
      2 // This file was procedurally generated from the following sources:
      3 // - src/dstr-binding/ary-ptrn-rest-init-id.case
      4 // - src/dstr-binding/default/func-decl.template
      5 /*---
      6 description: Rest element (identifier) does not support initializer (function declaration)
      7 esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
      8 features: [destructuring-binding]
      9 flags: [generated]
     10 negative:
     11  phase: parse
     12  type: SyntaxError
     13 info: |
     14    FunctionDeclaration :
     15        function BindingIdentifier ( FormalParameters ) { FunctionBody }
     16 
     17        [...]
     18        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
     19           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 Destructuring Binding Patterns
     46    ArrayBindingPattern[Yield] :
     47        [ Elisionopt BindingRestElement[?Yield]opt ]
     48        [ BindingElementList[?Yield] ]
     49        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
     50 ---*/
     51 $DONOTEVALUATE();
     52 
     53 var callCount = 0;
     54 function f([...x = []]) {
     55  
     56  callCount = callCount + 1;
     57 };
     58 f([]);
     59 assert.sameValue(callCount, 1, 'function invoked exactly once');