Import Qt5x2 branch of QtWebkit for Qt 5.2

Importing a new snapshot of webkit.

Change-Id: I2d01ad12cdc8af8cb015387641120a9d7ea5f10c
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>

1 files changed, 138 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/profiler/ProfilerCompilation.cpp b/Source/JavaScriptCore/profiler/ProfilerCompilation.cpp
new file mode 100644
index 000000000..f82414ffa
--- /dev/null
+++ b/Source/JavaScriptCore/profiler/ProfilerCompilation.cpp
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2012, 2013 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. 
+ */
+
+#include "config.h"
+#include "ProfilerCompilation.h"
+
+#include "JSGlobalObject.h"
+#include "ObjectConstructor.h"
+#include "Operations.h"
+#include "ProfilerDatabase.h"
+#include <wtf/StringPrintStream.h>
+
+namespace JSC { namespace Profiler {
+
+Compilation::Compilation(Bytecodes* bytecodes, CompilationKind kind)
+    : m_bytecodes(bytecodes)
+    , m_kind(kind)
+    , m_numInlinedGetByIds(0)
+    , m_numInlinedPutByIds(0)
+    , m_numInlinedCalls(0)
+{
+}
+
+Compilation::~Compilation() { }
+
+void Compilation::addProfiledBytecodes(Database& database, CodeBlock* profiledBlock)
+{
+    Bytecodes* bytecodes = database.ensureBytecodesFor(profiledBlock);
+    
+    // First make sure that we haven't already added profiled bytecodes for this code
+    // block. We do this using an O(N) search because I suspect that this list will
+    // tend to be fairly small, and the additional space costs of having a HashMap/Set
+    // would be greater than the time cost of occasionally doing this search.
+    
+    for (unsigned i = m_profiledBytecodes.size(); i--;) {
+        if (m_profiledBytecodes[i].bytecodes() == bytecodes)
+            return;
+    }
+    
+    m_profiledBytecodes.append(ProfiledBytecodes(bytecodes, profiledBlock));
+}
+
+void Compilation::addDescription(const CompiledBytecode& compiledBytecode)
+{
+    m_descriptions.append(compiledBytecode);
+}
+
+ExecutionCounter* Compilation::executionCounterFor(const OriginStack& origin)
+{
+    HashMap<OriginStack, OwnPtr<ExecutionCounter> >::iterator iter = m_counters.find(origin);
+    if (iter != m_counters.end())
+        return iter->value.get();
+    
+    OwnPtr<ExecutionCounter> counter = adoptPtr(new ExecutionCounter());
+    ExecutionCounter* result = counter.get();
+    m_counters.add(origin, counter.release());
+    return result;
+}
+
+void Compilation::addOSRExitSite(const Vector<const void*>& codeAddresses)
+{
+    m_osrExitSites.append(OSRExitSite(codeAddresses));
+}
+
+OSRExit* Compilation::addOSRExit(unsigned id, const OriginStack& originStack, ExitKind exitKind, bool isWatchpoint)
+{
+    m_osrExits.append(OSRExit(id, originStack, exitKind, isWatchpoint));
+    return &m_osrExits.last();
+}
+
+JSValue Compilation::toJS(ExecState* exec) const
+{
+    JSObject* result = constructEmptyObject(exec);
+    
+    result->putDirect(exec->vm(), exec->propertyNames().bytecodesID, jsNumber(m_bytecodes->id()));
+    result->putDirect(exec->vm(), exec->propertyNames().compilationKind, jsString(exec, String::fromUTF8(toCString(m_kind))));
+    
+    JSArray* profiledBytecodes = constructEmptyArray(exec, 0);
+    for (unsigned i = 0; i < m_profiledBytecodes.size(); ++i)
+        profiledBytecodes->putDirectIndex(exec, i, m_profiledBytecodes[i].toJS(exec));
+    result->putDirect(exec->vm(), exec->propertyNames().profiledBytecodes, profiledBytecodes);
+    
+    JSArray* descriptions = constructEmptyArray(exec, 0);
+    for (unsigned i = 0; i < m_descriptions.size(); ++i)
+        descriptions->putDirectIndex(exec, i, m_descriptions[i].toJS(exec));
+    result->putDirect(exec->vm(), exec->propertyNames().descriptions, descriptions);
+    
+    JSArray* counters = constructEmptyArray(exec, 0);
+    HashMap<OriginStack, OwnPtr<ExecutionCounter> >::const_iterator end = m_counters.end();
+    for (HashMap<OriginStack, OwnPtr<ExecutionCounter> >::const_iterator iter = m_counters.begin(); iter != end; ++iter) {
+        JSObject* counterEntry = constructEmptyObject(exec);
+        counterEntry->putDirect(exec->vm(), exec->propertyNames().origin, iter->key.toJS(exec));
+        counterEntry->putDirect(exec->vm(), exec->propertyNames().executionCount, jsNumber(iter->value->count()));
+        counters->push(exec, counterEntry);
+    }
+    result->putDirect(exec->vm(), exec->propertyNames().counters, counters);
+    
+    JSArray* exitSites = constructEmptyArray(exec, 0);
+    for (unsigned i = 0; i < m_osrExitSites.size(); ++i)
+        exitSites->putDirectIndex(exec, i, m_osrExitSites[i].toJS(exec));
+    result->putDirect(exec->vm(), exec->propertyNames().osrExitSites, exitSites);
+    
+    JSArray* exits = constructEmptyArray(exec, 0);
+    for (unsigned i = 0; i < m_osrExits.size(); ++i)
+        exits->putDirectIndex(exec, i, m_osrExits[i].toJS(exec));
+    result->putDirect(exec->vm(), exec->propertyNames().osrExits, exits);
+    
+    result->putDirect(exec->vm(), exec->propertyNames().numInlinedGetByIds, jsNumber(m_numInlinedGetByIds));
+    result->putDirect(exec->vm(), exec->propertyNames().numInlinedPutByIds, jsNumber(m_numInlinedPutByIds));
+    result->putDirect(exec->vm(), exec->propertyNames().numInlinedCalls, jsNumber(m_numInlinedCalls));
+    
+    return result;
+}
+
+} } // namespace JSC::Profiler
+