tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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eval-var-scope-syntax-err.js (1769B)

      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-expr.template
      4 /*---
      5 description: sloppy direct eval in params introduces var (function expression in sloppy code)
      6 esid: sec-function-definitions-runtime-semantics-evaluation
      7 features: [default-parameters]
      8 flags: [generated, noStrict]
      9 info: |
     10    FunctionExpression : function ( FormalParameters ) { FunctionBody }
     11 
     12        [...]
     13        3. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
     14           scope, strict).
     15        [...]
     16 
     17    9.2.1 [[Call]] ( thisArgument, argumentsList)
     18 
     19    [...]
     20    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
     21    [...]
     22 
     23    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
     24 
     25    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
     26    [...]
     27 
     28    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
     29 
     30    [...]
     31    23. Let iteratorRecord be Record {[[iterator]]:
     32        CreateListIterator(argumentsList), [[done]]: false}.
     33    24. If hasDuplicates is true, then
     34        [...]
     35    25. Else,
     36        b. Let formalStatus be IteratorBindingInitialization for formals with
     37           iteratorRecord and env as arguments.
     38    [...]
     39 
     40    
     41    Runtime Semantics: IteratorBindingInitialization
     42    FormalParameter : BindingElement
     43 
     44    1. Return the result of performing IteratorBindingInitialization for BindingElement with arguments iteratorRecord and environment.
     45 
     46 ---*/
     47 
     48 var callCount = 0;
     49 var f;
     50 f = function(a = eval("var a = 42")) {
     51  
     52  callCount = callCount + 1;
     53 };
     54 
     55 assert.throws(SyntaxError, function() {
     56  f();
     57 });
     58 assert.sameValue(callCount, 0, 'function body not evaluated');
     59 
     60 reportCompare(0, 0);