tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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decode-off-thread.js (1042B)

      1 // |jit-test| skip-if: helperThreadCount() === 0
      2 
      3 function evalWithCacheLoadOffThread(code, ctx) {
      4  ctx = ctx || {};
      5  ctx = Object.create(ctx, {
      6    fileName: { value: "evalWithCacheCode.js" },
      7    lineNumber: { value: 0 }
      8  });
      9  code = code instanceof Object ? code : cacheEntry(code);
     10 
     11  // We create a new global ...
     12  if (!("global" in ctx))
     13    ctx.global = newGlobal();
     14 
     15  var ctx_save = Object.create(ctx, {
     16    saveBytecodeWithDelazifications: { value: true }
     17  });
     18 
     19  ctx.global.generation = 0;
     20  evaluate(code, ctx_save);
     21 
     22  offThreadDecodeStencil(code, ctx);
     23  ctx.global.eval(`
     24 stencil = finishOffThreadStencil();
     25 evalStencil(stencil);
     26 `);
     27 }
     28 
     29 var test;
     30 
     31 // Decode a constant.
     32 test = `
     33  1;
     34 `;
     35 evalWithCacheLoadOffThread(test, {});
     36 
     37 // Decode object literals.
     38 test = `
     39  var obj = { a: 1, b: 2 };
     40  obj.a++;
     41  assertEq(obj.a, 2);
     42 `;
     43 evalWithCacheLoadOffThread(test, {});
     44 
     45 // Decode functions.
     46 test = `
     47  function g() {
     48    return function f() { return 1; };
     49  };
     50  assertEq(g()(), 1);
     51 `;
     52 evalWithCacheLoadOffThread(test, {});