tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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eval-var-scope-syntax-err.js (1795B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/function-forms/eval-var-scope-syntax-err.case
      3 // - src/function-forms/error-no-strict/func-decl.template
      4 /*---
      5 description: sloppy direct eval in params introduces var (function declaration in sloppy code)
      6 esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
      7 features: [default-parameters]
      8 flags: [generated, noStrict]
      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    
     42    Runtime Semantics: IteratorBindingInitialization
     43    FormalParameter : BindingElement
     44 
     45    1. Return the result of performing IteratorBindingInitialization for BindingElement with arguments iteratorRecord and environment.
     46 
     47 ---*/
     48 
     49 var callCount = 0;
     50 function f(a = eval("var a = 42")) {
     51  
     52  callCount = callCount + 1;
     53 }
     54 assert.throws(SyntaxError, function() {
     55  f();
     56 });
     57 assert.sameValue(callCount, 0, 'function body not evaluated');
     58 
     59 reportCompare(0, 0);