Implemented processing of compressed log files.

test/mjsunit/tools/logreader.js

Index: test/mjsunit/tools/logreader.js
diff --git a/test/mjsunit/tools/logreader.js b/test/mjsunit/tools/logreader.js
new file mode 100644
index 0000000000000000000000000000000000000000..dfd7f9f54eb003646ea91c182b6cc73efdb80a69
--- /dev/null
+++ b/test/mjsunit/tools/logreader.js
@@ -0,0 +1,82 @@
+// 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.
+
+// Load CSV Parser and Log Reader implementations from <project root>/tools.
+// Files: tools/csvparser.js tools/logreader.js
+
+
+(function testAddressParser() {
+  var reader = new devtools.profiler.LogReader({});
+  var parser = reader.createAddressParser('test');
+
+  // Test that 0x values are parsed, and prevAddresses_ are untouched.
+  assertFalse('test' in reader.prevAddresses_);
+  assertEquals(0, parser('0x0'));
+  assertFalse('test' in reader.prevAddresses_);
+  assertEquals(0x100, parser('0x100'));
+  assertFalse('test' in reader.prevAddresses_);
+  assertEquals(0xffffffff, parser('0xffffffff'));
+  assertFalse('test' in reader.prevAddresses_);
+
+  // Test that values that has no '+' or '-' prefix are parsed
+  // and saved to prevAddresses_.
+  assertEquals(0, parser('0'));
+  assertEquals(0, reader.prevAddresses_.test);
+  assertEquals(0x100, parser('100'));
+  assertEquals(0x100, reader.prevAddresses_.test);
+  assertEquals(0xffffffff, parser('ffffffff'));
+  assertEquals(0xffffffff, reader.prevAddresses_.test);
+
+  // Test that values prefixed with '+' or '-' are treated as deltas,
+  // and prevAddresses_ is updated.
+  // Set base value.
+  assertEquals(0x100, parser('100'));
+  assertEquals(0x100, reader.prevAddresses_.test);
+  assertEquals(0x200, parser('+100'));
+  assertEquals(0x200, reader.prevAddresses_.test);
+  assertEquals(0x100, parser('-100'));
+  assertEquals(0x100, reader.prevAddresses_.test);
+})();
+
+
+(function testAddressParser() {
+  var reader = new devtools.profiler.LogReader({});
+
+  assertEquals([0x10000000, 0x10001000, 0xffff000, 0x10000000],
+               reader.processStack(0x10000000, ['overflow',
+                   '+1000', '-2000', '+1000']));
+})();
+
+
+(function testExpandBackRef() {
+  var reader = new devtools.profiler.LogReader({});
+
+  assertEquals('aaaaaaaa', reader.expandBackRef_('aaaaaaaa'));
+  assertEquals('aaaaaaaa', reader.expandBackRef_('#1'));
+  assertEquals('bbbbaaaa', reader.expandBackRef_('bbbb#2:4'));
+  assertEquals('"#1:1"', reader.expandBackRef_('"#1:1"'));
+})();