tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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global-switch-case-eval-global-existing-global-init.js (1280B)

      1 // This file was procedurally generated from the following sources:
      2 // - src/annex-b-fns/eval-global-existing-global-init.case
      3 // - src/annex-b-fns/eval-global/indirect-switch-case.template
      4 /*---
      5 description: Variable binding is left in place by legacy function hoisting (Function declaration in the `case` clause of a `switch` statement in eval code)
      6 esid: sec-web-compat-evaldeclarationinstantiation
      7 flags: [generated, noStrict]
      8 includes: [fnGlobalObject.js, propertyHelper.js]
      9 info: |
     10    B.3.3.3 Changes to EvalDeclarationInstantiation
     11 
     12    [...]
     13    i. If varEnvRec is a global Environment Record, then
     14       i. Perform ? varEnvRec.CreateGlobalVarBinding(F, true).
     15    [...]
     16 
     17 ---*/
     18 Object.defineProperty(fnGlobalObject(), 'f', {
     19  value: 'x',
     20  enumerable: true,
     21  writable: true,
     22  configurable: false
     23 });
     24 
     25 (0,eval)(
     26  'var global = fnGlobalObject();\
     27  assert.sameValue(f, "x", "binding is not reinitialized");\
     28  \
     29  verifyProperty(global, "f", {\
     30    enumerable: true,\
     31    writable: true,\
     32    configurable: false\
     33  }, { restore: true });switch (1) {' +
     34  '  case 1:' +
     35  '    function f() {  }' +
     36  '}\
     37  '
     38 );
     39 
     40 assert.sameValue(typeof f, "function");
     41 verifyProperty(global, "f", {
     42  enumerable: true,
     43  writable: true,
     44  configurable: false
     45 });
     46 
     47 reportCompare(0, 0);