Function testAdd

deps/v8/test/mjsunit/array-methods-read-only-length.js:7–51

(mode)

// Flags: --allow-natives-syntax

function testAdd(mode) {
  var a = [];
  Object.defineProperty(a, "length", { writable : false});

  function check(f) {
    assertThrows(function() { f(a) }, TypeError);
    assertFalse(0 in a);
    assertEquals(0, a.length);
  }

  function push(a) {
    a.push(3);
  }

  if (mode == "fast properties") %ToFastProperties(a);

  %PrepareFunctionForOptimization(push);
  check(push);
  check(push);
  check(push);
  %OptimizeFunctionOnNextCall(push);
  check(push);

  function unshift(a) {
    a.unshift(3);
  }

  %PrepareFunctionForOptimization(unshift);
  check(unshift);
  check(unshift);
  check(unshift);
  %OptimizeFunctionOnNextCall(unshift);
  check(unshift);

  function splice(a) {
    a.splice(0, 0, 3);
  }

  %PrepareFunctionForOptimization(splice);
  check(splice);
  check(splice);
  check(splice);
  %OptimizeFunctionOnNextCall(splice);
  check(splice);
}

testAdd("fast properties");