v8/test/mjsunit/compiler/literals-assignment.js

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// Copyright 2009 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.
// Tests for simple assignments and literals inside an anonymous function
// Test simple return statement.
assertEquals(8, eval("(function() { return 8; })()"));
// Test simple assignment
var code = "(function() {\
var a;\
a = 8;\
return a;\
})()";
assertEquals(8, eval(code));
code = "(function() {\
var x;\
x = 'abc';\
return x;\
})()";
assertEquals("abc", eval(code));
// Test assignment as an RHS expression
code = "(function() {\
var x, y;\
x = y = 8;\
return x;\
})()";
assertEquals(8, eval(code));
code = "(function() {\
var x, y;\
x = y = 8;\
return y;\
})()";
assertEquals(8, eval(code));
code = "(function() {\
var x,y,z;\
return x = y = z = 8;\
})()";
assertEquals(8, eval(code));
// Test object literals.
var a, b;
code = "a = {x:8}";
eval(code);
assertEquals(8, a.x);
code = "b = {x:a, y:'abc'}";
eval(code);
assertEquals(a, b.x);
assertEquals(8, b.x.x);
assertEquals("abc", b.y);
code = "({x:8, y:9}); 10";
assertEquals(10, eval(code));
code = "({x:8, y:9})";
eval(code);
assertEquals(9, eval(code+".y"));
code = "a = {2:8, x:9}";
eval(code);
assertEquals(8, a[2]);
assertEquals(8, a["2"]);
assertEquals(9, a["x"]);
// Test regexp literals.
a = /abc/;
assertEquals(/abc/, a);
code = "/abc/; 8";
assertEquals(8, eval(code));