d434d3158c
BUG= TEST=mjsunit/harmony/block-conflicts.js Review URL: http://codereview.chromium.org/7756014 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9102 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
127 lines
4.2 KiB
JavaScript
127 lines
4.2 KiB
JavaScript
// Copyright 2011 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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// Flags: --harmony-block-scoping
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// Test for conflicting variable bindings.
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function CheckException(e) {
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var string = e.toString();
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assertTrue(string.indexOf("has already been declared") >= 0 ||
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string.indexOf("redeclaration") >= 0); return 'Conflict';
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}
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function TestFunction(s,e) {
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try {
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return eval("(function(){" + s + ";return " + e + "})")();
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} catch (x) {
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return CheckException(x);
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}
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}
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function TestBlock(s,e) {
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try {
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return eval("(function(){ if (true) { " + s + "; }; return " + e + "})")();
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} catch (x) {
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return CheckException(x);
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}
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}
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function TestAll(expected,s,opt_e) {
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var e = "";
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var msg = s;
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if (opt_e) { e = opt_e; msg += "; " + opt_e; }
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assertEquals(expected, TestFunction(s,e), "function:'" + msg + "'");
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assertEquals(expected, TestBlock(s,e), "block:'" + msg + "'");
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}
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function TestConflict(s) {
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TestAll('Conflict', s);
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TestAll('Conflict', 'eval("' + s + '")');
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}
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function TestNoConflict(s) {
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TestAll('NoConflict', s, "'NoConflict'");
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TestAll('NoConflict', 'eval("' + s + '")', "'NoConflict'");
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}
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var letbinds = [ "let x",
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"let x = 0",
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"let x = undefined",
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"function x() { }",
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"let x = function() {}",
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"let x, y",
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"let y, x",
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];
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var varbinds = [ "var x",
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"var x = 0",
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"var x = undefined",
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"var x = function() {}",
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"var x, y",
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"var y, x",
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];
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for (var l = 0; l < letbinds.length; ++l) {
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// Test conflicting let/var bindings.
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for (var v = 0; v < varbinds.length; ++v) {
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// Same level.
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TestConflict(letbinds[l] +'; ' + varbinds[v]);
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TestConflict(varbinds[v] +'; ' + letbinds[l]);
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// Different level.
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TestConflict(letbinds[l] +'; {' + varbinds[v] + '; }');
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TestConflict('{ ' + varbinds[v] +'; }' + letbinds[l]);
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}
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// Test conflicting let/let bindings.
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for (var k = 0; k < letbinds.length; ++k) {
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// Same level.
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TestConflict(letbinds[l] +'; ' + letbinds[k]);
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TestConflict(letbinds[k] +'; ' + letbinds[l]);
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// Different level.
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TestNoConflict(letbinds[l] +'; { ' + letbinds[k] + '; }');
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TestNoConflict('{ ' + letbinds[k] +'; } ' + letbinds[l]);
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}
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// Test conflicting parameter/let bindings.
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TestConflict('(function (x) { ' + letbinds[l] + '; })()');
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}
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// Test conflicting catch/var bindings.
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for (var v = 0; v < varbinds.length; ++v) {
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TestConflict('try {} catch (x) { ' + varbinds[v] + '; }');
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}
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// Test conflicting parameter/var bindings.
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for (var v = 0; v < varbinds.length; ++v) {
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TestConflict('(function (x) { ' + varbinds[v] + '; })()');
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}
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