tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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func-switch-dflt-eval-func-no-skip-param.js (1052B)


      1 // This file was procedurally generated from the following sources:
      2 // - src/annex-b-fns/eval-func-no-skip-param.case
      3 // - src/annex-b-fns/eval-func/direct-switch-dflt.template
      4 /*---
      5 description: Extension observed when there is a formal parameter with the same name (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    ii. If replacing the FunctionDeclaration f with a VariableStatement that
     13        has F as a BindingIdentifier would not produce any Early Errors for
     14        body, then
     15    [...]
     16 ---*/
     17 var init, after;
     18 
     19 (function(f) {
     20  eval(
     21    'init = f;switch (1) {' +
     22    '  default:' +
     23    '    function f() {  }' +
     24    '}\
     25    after = f;'
     26  );
     27 }(123));
     28 
     29 assert.sameValue(init, 123, 'binding is not initialized to `undefined`');
     30 assert.sameValue(
     31  typeof after, 'function', 'value is updated following evaluation'
     32 );
     33 
     34 reportCompare(0, 0);