tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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switch-dflt-global-skip-early-err-switch.js (1290B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/annex-b-fns/global-skip-early-err-switch.case
      3 // - src/annex-b-fns/global/switch-dflt.template
      4 /*---
      5 description: Extension not observed when creation of variable binding would produce an early error (switch statement) (Funtion declaration in the `default` clause of a `switch` statement in the global scope)
      6 esid: sec-web-compat-globaldeclarationinstantiation
      7 flags: [generated, noStrict]
      8 info: |
      9    B.3.3.2 Changes to GlobalDeclarationInstantiation
     10 
     11    [...]
     12    b. If replacing the FunctionDeclaration f with a VariableStatement that has
     13       F as a BindingIdentifier would not produce any Early Errors for script,
     14       then
     15    [...]
     16 ---*/
     17 assert.throws(ReferenceError, function() {
     18  f;
     19 }, 'An initialized binding is not created prior to evaluation');
     20 assert.sameValue(
     21  typeof f,
     22  'undefined',
     23  'An uninitialized binding is not created prior to evaluation'
     24 );
     25 
     26 switch (0) {
     27  default:
     28    let f;
     29 
     30 switch (1) {
     31  default:
     32    function f() {  }
     33 }
     34 
     35 }
     36 
     37 assert.throws(ReferenceError, function() {
     38  f;
     39 }, 'An initialized binding is not created following evaluation');
     40 assert.sameValue(
     41  typeof f,
     42  'undefined',
     43  'An uninitialized binding is not created following evaluation'
     44 );
     45 
     46 reportCompare(0, 0);