tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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WeakMap-surfaces.js (1101B)

      1 // WeakMap surfaces
      2 
      3 var desc = Object.getOwnPropertyDescriptor(this, "WeakMap");
      4 assertEq(desc.enumerable, false);
      5 assertEq(desc.configurable, true);
      6 assertEq(desc.writable, true);
      7 
      8 assertEq(typeof WeakMap, 'function');
      9 assertEq(Object.keys(WeakMap).length, 0);
     10 assertEq(WeakMap.length, 0);
     11 assertEq(WeakMap.name, "WeakMap");
     12 
     13 assertEq(Object.getPrototypeOf(WeakMap.prototype), Object.prototype);
     14 assertEq(Object.prototype.toString.call(WeakMap.prototype), "[object WeakMap]");
     15 assertEq(Object.prototype.toString.call(new WeakMap()), "[object WeakMap]");
     16 assertEq(Object.keys(WeakMap.prototype).join(), "");
     17 assertEq(WeakMap.prototype.constructor, WeakMap);
     18 
     19 function checkMethod(name, arity) {
     20    var desc = Object.getOwnPropertyDescriptor(WeakMap.prototype, name);
     21    assertEq(desc.enumerable, false);
     22    assertEq(desc.configurable, true);
     23    assertEq(desc.writable, true);
     24    assertEq(typeof desc.value, 'function');
     25    assertEq(desc.value.name, name);
     26    assertEq(desc.value.length, arity);
     27 }
     28 
     29 checkMethod("get", 1);
     30 checkMethod("has", 1);
     31 checkMethod("set", 2);
     32 checkMethod("delete", 1);