eval-01.js - mozsearch

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// Any copyright is dedicated to the Public Domain.

// http://creativecommons.org/licenses/publicdomain/

var a = 9;

var global = this;

function test() {

    var a = 0;

    // direct eval sees local a

    assertEq(eval('a+1'), 1);

    assertEq(eval('eval("a+1")'), 1);

    // indirect: using a name other than 'eval'

    var foo = eval;

    assertEq(foo('a+1'), 10);

    assertEq(eval('foo("a+1")'), 10); // outer eval is direct, inner foo("a+1") is indirect

    // indirect: qualified method call

    assertEq(this.eval("a+1"), 10);

    assertEq(global.eval("a+1"), 10);

    var obj = {foo: eval, eval: eval};

    assertEq(obj.foo('a+1'), 10);

    assertEq(obj.eval('a+1'), 10);

    var name = "eval";

    assertEq(obj[name]('a+1'), 10);

    assertEq([eval][0]('a+1'), 10);

    // indirect: not called from a CallExpression at all

    assertEq(eval.call(undefined, 'a+1'), 10);

    assertEq(eval.call(global, 'a+1'), 10);

    assertEq(eval.apply(undefined, ['a+1']), 10);

    assertEq(eval.apply(global, ['a+1']), 10);

    assertEq(['a+1'].map(eval)[0], 10);

test();

reportCompare(0, 0);