tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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lazy-class-definition.js (1135B)

      1 load(libdir + 'bytecode-cache.js');
      2 
      3 // Bury the class definition deep in a lazy function to hit edge cases of lazy
      4 // script handling.
      5 
      6 test = `
      7    function f1() {
      8        function f2() {
      9            function f3() {
     10                class C {
     11                    constructor() {
     12                        this.x = 42;
     13                    }
     14                }
     15                return new C;
     16            }
     17            return f3();
     18        }
     19        return f2();
     20    }
     21    if (generation >= 2) {
     22        assertEq(f1().x, 42);
     23    }
     24 `;
     25 evalWithCache(test, {});
     26 
     27 // NOTE: Fields currently force full parsing, but this test may be more
     28 //       interesting in future.
     29 test = `
     30    function f1() {
     31        function f2() {
     32            function f3() {
     33                class C {
     34                    y = 12;
     35 
     36                    constructor() {
     37                        this.x = 42;
     38                    }
     39                }
     40                return new C;
     41            }
     42            return f3();
     43        }
     44        return f2();
     45    }
     46    if (generation >= 2) {
     47        assertEq(f1().x, 42);
     48        assertEq(f1().y, 12);
     49    }
     50 `;
     51 evalWithCache(test, {});