637a21952f
Until now we only supported postfix operations on global variables. This change add generic count operations to the top-level compiler. I tried to re-use code from the code generator used for assignment expressions where possible. Review URL: http://codereview.chromium.org/496009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3530 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
112 lines
3.4 KiB
JavaScript
112 lines
3.4 KiB
JavaScript
// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Test pre- and postfix count operations.
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// Test value context.
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var a = 42;
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var b = {x:42};
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var c = "x";
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assertEquals(43, ++a);
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assertEquals(43, a);
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assertEquals(43, a++);
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assertEquals(44, a);
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assertEquals(43, ++b.x);
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assertEquals(43, b.x);
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assertEquals(43, b.x++);
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assertEquals(44, b.x);
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assertEquals(45, ++b[c]);
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assertEquals(45, b[c]);
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assertEquals(45, b[c]++);
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assertEquals(46, b[c]);
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// Test effect context.
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a = 42;
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b = {x:42};
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c = "x";
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assertEquals(1, eval("++a; 1"));
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assertEquals(43, a);
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assertEquals(1, eval("a++; 1"));
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assertEquals(44, a);
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assertEquals(1, eval("++b.x; 1"));
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assertEquals(43, b.x);
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assertEquals(1, eval("b.x++; 1"));
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assertEquals(44, b.x);
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assertEquals(1, eval("++b[c]; 1"));
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assertEquals(45, b[c]);
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assertEquals(1, eval("b[c]++; 1"));
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assertEquals(46, b[c]);
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// Test test context.
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a = 42;
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b = {x:42};
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c = "x";
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assertEquals(1, (++a) ? 1 : 0);
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assertEquals(43, a);
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assertEquals(1, (a++) ? 1 : 0);
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assertEquals(44, a);
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assertEquals(1, (++b.x) ? 1 : 0);
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assertEquals(43, b.x);
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assertEquals(1, (b.x++) ? 1 : 0);
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assertEquals(44, b.x);
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assertEquals(1, (++b[c]) ? 1 : 0);
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assertEquals(45, b[c]);
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assertEquals(1, (b[c]++) ? 1 : 0);
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assertEquals(46, b[c]);
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// Test value/test and test/value contexts.
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a = 42;
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b = {x:42};
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c = "x";
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assertEquals(43, ++a || 1);
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assertEquals(43, a);
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assertEquals(43, a++ || 1);
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assertEquals(44, a);
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assertEquals(43, ++b.x || 1);
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assertEquals(43, b.x);
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assertEquals(43, (b.x++) || 1);
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assertEquals(44, b.x);
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assertEquals(45, ++b[c] || 1);
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assertEquals(45, b[c]);
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assertEquals(45, b[c]++ || 1);
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assertEquals(46, b[c]);
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a = 42;
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b = {x:42};
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c = "x";
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assertEquals(1, ++a && 1);
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assertEquals(43, a);
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assertEquals(1, a++ && 1);
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assertEquals(44, a);
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assertEquals(1, ++b.x && 1);
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assertEquals(43, b.x);
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assertEquals(1, (b.x++) && 1);
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assertEquals(44, b.x);
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assertEquals(1, ++b[c] && 1);
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assertEquals(45, b[c]);
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assertEquals(1, b[c]++ && 1);
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assertEquals(46, b[c]);
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