tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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accessors.js (2048B)

      1 // |jit-test| skip-if: !getBuildConfiguration("decorators")
      2 
      3 load(libdir + "asserts.js");
      4 
      5 function assertAccessorDescriptor(object, name) {
      6  var desc = Object.getOwnPropertyDescriptor(object, name);
      7  assertEq(desc.configurable, true, "The value of `desc.configurable` is `true`");
      8  assertEq(desc.enumerable, false, "The value of `desc.enumerable` is `false`");
      9  assertEq(typeof desc.get, 'function', "`typeof desc.get` is `'function'`");
     10  assertEq(typeof desc.set, 'function', "`typeof desc.set` is `'function'`");
     11  assertEq(
     12    'prototype' in desc.get,
     13    false,
     14    "The result of `'prototype' in desc.get` is `false`"
     15  );
     16  assertEq(
     17    'prototype' in desc.set,
     18    false,
     19    "The result of `'prototype' in desc.set` is `false`"
     20  );
     21 }
     22 
     23 class C {
     24  accessor x;
     25 }
     26 
     27 assertAccessorDescriptor(C.prototype, 'x');
     28 
     29 let c = new C();
     30 assertEq(c.x, undefined, "The value of `c.x` is `undefined` after construction");
     31 c.x = 2;
     32 assertEq(c.x, 2, "The value of `c.x` is `2`, after executing `c.x = 2;`");
     33 
     34 class D {
     35  accessor x = 1;
     36 }
     37 
     38 assertAccessorDescriptor(D.prototype, 'x');
     39 
     40 let d = new D();
     41 assertEq(d.x, 1, "The value of `d.x` is `1` after construction");
     42 d.x = 2;
     43 assertEq(d.x, 2, "The value of `d.x` is `2`, after executing `d.x = 2;`");
     44 
     45 class E {
     46  accessor #x = 1;
     47 
     48  getX() {
     49    return this.#x;
     50  }
     51 
     52  setX(v) {
     53    this.#x = v;
     54  }
     55 }
     56 
     57 let e = new E();
     58 assertEq(e.getX(), 1, "The value of `e.x` is `1` after construction");
     59 e.setX(2);
     60 assertEq(e.getX(), 2, "The value of `e.x` is `2`, after executing `e.setX(2);`");
     61 
     62 class F {
     63  static accessor x = 1;
     64 }
     65 
     66 assertEq(F.x, 1, "The value of `F.x` is `1` after construction");
     67 F.x = 2;
     68 assertEq(F.x, 2, "The value of `F.x` is `2`, after executing `F.x = 2;`");
     69 
     70 assertAccessorDescriptor(F, 'x');
     71 
     72 class G {
     73  static accessor #x = 1;
     74 
     75  getX() {
     76    return G.#x;
     77  }
     78 
     79  setX(v) {
     80    G.#x = v;
     81  }
     82 }
     83 g = new G();
     84 assertEq(g.getX(), 1, "The value of `g.getX()` is `1` after construction");
     85 g.setX(2);
     86 assertEq(g.getX(), 2, "The value of `g.getX()` is `2`, after executing `g.setX(2)`");