tests/stress/escape-object-in-diamond-then-exit.js

   1 var global = null;
   2
   3 function foo(p, q) {
   4     var o = {f:42};
   5     if (p)
   6         global = o;
   7     var tmp = q + 1;
   8     return o.f + tmp;
   9 }
  10
  11 noInline(foo);
  12
  13 var lastObject = null;
  14
  15 function validateEscape(when) {
  16     if (global === lastObject)
  17         throw "Error: bad value in global " + when + ", identical to lastObject.";
  18     if (global === null || !(typeof global == "object"))
  19         throw "Error: bad value in global " + when + ": it's not an object.";
  20     if (global.f != 42)
  21         throw "Error: bad value in global " + when + ": f isn't 42, it's: " + global.f;
  22     lastObject = global;
  23     global = null;
  24 }
  25
  26 for (var i = 0; i < 10000; ++i) {
  27     var escape = !!(i & 1);
  28     var result = foo(escape, 42);
  29     if (result != 42 + 42 + 1)
  30         throw "Error: bad result: " + result;
  31     if (escape)
  32         validateEscape("in loop");
  33     else if (global !== null)
  34         throw "Error: bad value in global: " + global;
  35 }
  36
  37 var result = foo(true, 2147483647);
  38 if (result != 42 + 2147483647 + 1)
  39     throw "Error: bad result at end: " + result;
  40 validateEscape("at end");