tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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func-switch-dflt-eval-func-update.js (1367B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/annex-b-fns/eval-func-update.case
      3 // - src/annex-b-fns/eval-func/direct-switch-dflt.template
      4 /*---
      5 description: Variable binding value is updated following evaluation (Funtion declaration in the `default` clause of a `switch` statement in eval code in the global scope)
      6 esid: sec-web-compat-evaldeclarationinstantiation
      7 flags: [generated, noStrict]
      8 info: |
      9    B.3.3.3 Changes to EvalDeclarationInstantiation
     10 
     11    [...]
     12    b. When the FunctionDeclaration f is evaluated, perform the following steps
     13       in place of the FunctionDeclaration Evaluation algorithm provided in
     14       14.1.21:
     15       i. Let genv be the running execution context's VariableEnvironment.
     16       ii. Let genvRec be genv's EnvironmentRecord.
     17       iii. Let benv be the running execution context's LexicalEnvironment.
     18       iv. Let benvRec be benv's EnvironmentRecord.
     19       v. Let fobj be ! benvRec.GetBindingValue(F, false).
     20       vi. Perform ? genvRec.SetMutableBinding(F, fobj, false).
     21       vii. Return NormalCompletion(empty). 
     22 ---*/
     23 var after;
     24 
     25 (function() {
     26  eval(
     27    'switch (1) {' +
     28    '  default:' +
     29    '    function f() { return "declaration"; }' +
     30    '}\
     31    after = f;'
     32  );
     33 }());
     34 
     35 assert.sameValue(typeof after, 'function');
     36 assert.sameValue(after(), 'declaration');
     37 
     38 reportCompare(0, 0);