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// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
assertEquals(void 0, eval());
assertEquals(4, eval(4));
function f() { return 'The f function'; };
assertTrue(f === eval(f));
function g(x, y) { return 4; };
count = 0;
assertEquals(4, eval('2 + 2', count++));
assertEquals(1, count);
try {
eval('hest 7 &*^*&^');
assertUnreachable('Did not throw on syntax error.');
} catch (e) {
assertEquals('SyntaxError', e.name);
}
// eval has special evaluation order for consistency with other browsers.
global_eval = eval;
assertEquals(void 0, eval(eval("var eval = function f(x) { return 'hest';}")))
eval = global_eval;
// Test eval with different number of parameters.
global_eval = eval;
eval = function(x, y) { return x + y; };
assertEquals(4, eval(2, 2));
eval = global_eval;
// Test that un-aliased eval reads from local context.
foo = 0;
result =
(function() {
var foo = 2;
return eval('foo');
})();
assertEquals(2, result);
// Test that un-aliased eval writes to local context.
foo = 0;
result =
(function() {
var foo = 1;
eval('foo = 2');
return foo;
})();
assertEquals(2, result);
assertEquals(0, foo);
// Test that un-aliased eval has right receiver.
function MyObject() { this.self = eval('this'); }
var o = new MyObject();
assertTrue(o === o.self);
// Test that aliased eval reads from global context.
var e = eval;
foo = 0;
result =
(function() {
var foo = 2;
return e('foo');
})();
assertEquals(0, result);
// Test that aliased eval writes to global context.
var e = eval;
foo = 0;
(function() { e('var foo = 2;'); })();
assertEquals(2, foo);
// Test that aliased eval has right receiver.
function MyOtherObject() { this.self = e('this'); }
var o = new MyOtherObject();
assertTrue(this === o.self);
// Try to cheat the 'aliased eval' detection.
var x = this;
foo = 0;
result =
(function() {
var foo = 2;
// Should be non-direct call.
return x.eval('foo');
})();
assertEquals(0, result);
foo = 0;
result =
(function() {
var foo = 2;
// Should be non-direct call.
return (1,eval)('foo');
})();
assertEquals(0, result);
foo = 0;
result =
(function() {
var eval = function(x) { return x; };
var foo = eval(2);
// Should be non-direct call.
return e('foo');
})();
assertEquals(0, result);
foo = 0;
result =
(function() {
var foo = 2;
// Should be direct call.
with ({ eval : e }) {
return eval('foo');
}
})();
assertEquals(2, result);
result =
(function() {
var eval = function(x) { return 2 * x; };
return (function() { return eval(2); })();
})();
assertEquals(4, result);
result =
(function() {
eval("var eval = function(s) { return this; }");
return eval("42"); // Should return the global object
})();
assertEquals(this, result);
(function() {
var obj = { f: function(eval) { return eval("this"); } };
result = obj.f(eval);
assertEquals(obj, result);
})();
(function() {
var obj = { f: function(eval) { arguments; return eval("this"); } };
result = obj.f(eval);
assertEquals(obj, result);
})();
eval = function(x) { return 2 * x; };
result =
(function() {
return (function() { return eval(2); })();
})();
assertEquals(4, result);
// Regression test: calling a function named eval found in a context that is
// not the global context should get the global object as receiver.
result =
(function () {
var eval = function (x) { return this; };
with ({}) { return eval('ignore'); }
})();
assertEquals(this, result);
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