exotic.js - mozsearch

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// Test exotic ways of triggering recompilation.

// Recompilation triggered by local function.

var o = {};

function what(q) {

  function inner() { return q; }

  o.f = inner;

  var a = o.f();

  return a;

for (var i = 0; i < 10; i++) {

  var a = what(i);

  assertEq(a, i);

// Lowered scripted call to apply returning code pointer.

var global = 3;

function foo(x, y) {

  var q = x.apply(null, y);

  if (q != 10)

    assertEq(global, true);

foo(function(a) { global = a; return 10; }, [1]);

foo(function(a) { global = a; return 10; }, [1]);

foo(function(a) { global = a; return 10; }, [1]);

assertEq(global, 1);

foo(function(a) { global = a; return 3; }, [true]);

assertEq(global, true);

// Lowered scripted call returning NULL.

var oglobal = 3;

function xfoo(x, y) {

  var q = x.apply(null, y);

  if (q != 10)

    assertEq(oglobal, true);

xfoo(function(a) { oglobal = a; return 10; }, [1]);

xfoo(function(a) { oglobal = a; return 10; }, [1]);

xfoo(function(a) { oglobal = a; return 10; }, [1]);

assertEq(oglobal, 1);

xfoo(function(a) { [1,2,3]; oglobal = a; return 3; }, [true]);

assertEq(oglobal, true);

// Recompilation out of SplatApplyArgs.

weirdarray = [,,1,2,3];

Object.defineProperty(weirdarray, 0, {get: function() { vglobal = 'true'; }});

var vglobal = 3;

function yfoo(x, y) {

  var q = x.apply(null, y);

  if (q != 10)

    assertEq(vglobal, 'true');

  else

    assertEq(vglobal, 3);

yfoo(function(a) { return 10; }, [1]);

yfoo(function(a) { return 10; }, [1]);

yfoo(function(a) { return 10; }, [1]);

yfoo(function() { return 0; }, weirdarray);