third_party/WebKit/LayoutTests/fast/js/script-tests/inc-const-valueOf.js

   1 description(
   2 'Test for regression against <a href="https://bugs.webkit.org/show_bug.cgi?id=95815">'
   3 );
   4
   5 function testPostIncConstVarWithIgnoredResult()
   6 {
   7     var okay = false;
   8     const a = {
   9         valueOf: (function(){
  10             okay = true;
  11         })
  12     };
  13
  14     a++;
  15
  16     return okay;
  17 }
  18
  19 function testPreIncConstVarWithIgnoredResult()
  20 {
  21     var okay = false;
  22     const a = {
  23         valueOf: (function(){
  24             okay = true;
  25         })
  26     };
  27
  28     ++a;
  29
  30     return okay;
  31 }
  32
  33 function testPreIncConstVarWithAssign()
  34 {
  35     var okay = false;
  36     var x = 42;
  37     const a = {
  38         valueOf: (function(){
  39             throw x == 42;
  40         })
  41     };
  42
  43     try {
  44         x = ++a;
  45     } catch (e) {
  46         okay = e
  47     };
  48
  49     return okay;
  50 }
  51
  52 shouldBeTrue('testPostIncConstVarWithIgnoredResult()');
  53 shouldBeTrue('testPreIncConstVarWithIgnoredResult()');
  54 shouldBeTrue('testPreIncConstVarWithAssign()');
  55
  56 successfullyParsed = true;