tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Memory-takeCensus-11.js (1851B)

      1 // |jit-test| --baseline-offthread-compile=off; skip-if: isLcovEnabled()
      2 
      3 // NOTE: Code coverage keeps top-level script alive even if normally it would be
      4 //       GC'd. Skip this test in that case. For the same reason, offthread
      5 //       baseline compilation must be disabled.
      6 
      7 // Check byte counts produced by takeCensus.
      8 
      9 const g = newGlobal({newCompartment: true });
     10 g.evaluate("setJitCompilerOption('ion.warmup.trigger', 1000)",
     11           {
     12             forceFullParse: true,
     13           });
     14 
     15 const dbg = new Debugger(g);
     16 
     17 g.evaluate("function one() {}",
     18           {
     19             fileName: "one.js",
     20             forceFullParse: true,
     21           });
     22 g.evaluate(`function two1() {}
     23            function two2() {}`,
     24           {
     25             fileName: "two.js",
     26             forceFullParse: true,
     27           });
     28 g.evaluate(`function three1() {}
     29            function three2() {}
     30            function three3() {}`,
     31           {
     32             fileName: "three.js",
     33             forceFullParse: true,
     34           });
     35 
     36 const report = dbg.memory.takeCensus({
     37  breakdown: {
     38    by: "coarseType",
     39    scripts: {
     40      by: "filename",
     41      then: { by: "count", count: true, bytes: false },
     42      noFilename: {
     43        by: "internalType",
     44        then: { by: "count", count: true, bytes: false }
     45      }
     46    },
     47 
     48    // Not really interested in these, but they're here for completeness.
     49    objects: { by: "count", count: true, byte: false },
     50    strings: { by: "count", count: true, byte: false },
     51    other:   { by: "count", count: true, byte: false },
     52  }
     53 });
     54 
     55 print(JSON.stringify(report, null, 4));
     56 
     57 assertEq(report.scripts["one.js"].count, 1);
     58 assertEq(report.scripts["two.js"].count, 2);
     59 assertEq(report.scripts["three.js"].count, 3);
     60 
     61 const noFilename = report.scripts.noFilename;
     62 assertEq(!!noFilename, true);
     63 assertEq(typeof noFilename, "object");