1 files changed, 145 insertions, 0 deletions
diff --git a/WebCore/bindings/v8/ScriptCallStackFactory.cpp b/WebCore/bindings/v8/ScriptCallStackFactory.cpp
new file mode 100644
index 0000000..62fbeef
--- /dev/null
+++ b/WebCore/bindings/v8/ScriptCallStackFactory.cpp
@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2010 Google 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:
+ * 
+ *     * 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.
+ */
+
+#include "config.h"
+#include "ScriptCallStackFactory.h"
+
+#include "InspectorValues.h"
+#include "ScriptArguments.h"
+#include "ScriptCallFrame.h"
+#include "ScriptCallStack.h"
+#include "ScriptScope.h"
+#include "ScriptValue.h"
+#include "V8Binding.h"
+
+#include <v8-debug.h>
+
+namespace WebCore {
+
+static ScriptCallFrame toScriptCallFrame(v8::Handle<v8::StackFrame> frame)
+{
+    String sourceName;
+    v8::Local<v8::String> sourceNameValue(frame->GetScriptNameOrSourceURL());
+    if (!sourceNameValue.IsEmpty())
+        sourceName = toWebCoreString(sourceNameValue);
+
+    String functionName;
+    v8::Local<v8::String> functionNameValue(frame->GetFunctionName());
+    if (!functionNameValue.IsEmpty())
+        functionName = toWebCoreString(functionNameValue);
+
+    int sourceLineNumber = frame->GetLineNumber();
+    return ScriptCallFrame(functionName, sourceName, sourceLineNumber);
+}
+
+static void toScriptCallFramesVector(v8::Local<v8::Context> context, v8::Handle<v8::StackTrace> stackTrace, Vector<ScriptCallFrame>& scriptCallFrames, size_t maxStackSize)
+{
+    // TODO(yurys): remove this???
+    v8::Context::Scope contextScope(context);
+    int frameCount = stackTrace->GetFrameCount();
+    if (frameCount > static_cast<int>(maxStackSize))
+        frameCount = maxStackSize;
+    for (int i = 0; i < frameCount; i++) {
+        v8::Local<v8::StackFrame> stackFrame = stackTrace->GetFrame(i);
+        scriptCallFrames.append(toScriptCallFrame(stackFrame));
+    }
+    
+    if (!frameCount) {
+        // Successfully grabbed stack trace, but there are no frames. It may happen in case of a syntax error for example.
+        // Fallback to setting lineNumber to 0, and source and function name to "undefined".
+        scriptCallFrames.append(ScriptCallFrame("undefined", "undefined", 0));
+    }
+}
+
+PassOwnPtr<ScriptCallStack> createScriptCallStack(v8::Local<v8::Context> context, v8::Handle<v8::StackTrace> stackTrace, size_t maxStackSize)
+{
+    v8::HandleScope scope;
+    v8::Context::Scope contextScope(context);
+
+    Vector<ScriptCallFrame> scriptCallFrames;
+    toScriptCallFramesVector(context, stackTrace, scriptCallFrames, maxStackSize);
+    return new ScriptCallStack(scriptCallFrames);
+}
+
+PassOwnPtr<ScriptCallStack> createScriptCallStack(size_t maxStackSize)
+{
+    v8::HandleScope scope;
+    v8::Local<v8::Context> context = v8::Context::GetCurrent();
+    // TODO(yurys): remove?
+    v8::Context::Scope contextScope(context);
+    v8::Handle<v8::StackTrace> stackTrace(v8::StackTrace::CurrentStackTrace(maxStackSize, stackTraceOptions));
+    return createScriptCallStack(context, stackTrace, maxStackSize);
+}
+
+PassOwnPtr<ScriptArguments> createScriptArguments(const v8::Arguments& v8arguments, unsigned skipArgumentCount)
+{
+    v8::HandleScope scope;
+    v8::Local<v8::Context> context = v8::Context::GetCurrent();
+    ScriptState* state = ScriptState::forContext(context);
+
+    Vector<ScriptValue> arguments;
+    for (int i = skipArgumentCount; i < v8arguments.Length(); ++i)
+        arguments.append(ScriptValue(v8arguments[i]));
+
+    return new ScriptArguments(state, arguments);
+}
+
+bool ScriptCallStack::stackTrace(int frameLimit, const RefPtr<InspectorArray>& stackTrace)
+{
+#if ENABLE(INSPECTOR)
+    if (!v8::Context::InContext())
+        return false;
+    v8::Handle<v8::Context> context = v8::Context::GetCurrent();
+    if (context.IsEmpty())
+        return false;
+    v8::HandleScope scope;
+    v8::Context::Scope contextScope(context);
+    v8::Handle<v8::StackTrace> trace(v8::StackTrace::CurrentStackTrace(frameLimit));
+    int frameCount = trace->GetFrameCount();
+    if (trace.IsEmpty() || !frameCount)
+        return false;
+    for (int i = 0; i < frameCount; ++i) {
+        v8::Handle<v8::StackFrame> frame = trace->GetFrame(i);
+        RefPtr<InspectorObject> frameObject = InspectorObject::create();
+        v8::Local<v8::String> scriptName = frame->GetScriptName();
+        frameObject->setString("scriptName", scriptName.IsEmpty() ? "" : toWebCoreString(scriptName));
+        v8::Local<v8::String> functionName = frame->GetFunctionName();
+        frameObject->setString("functionName", functionName.IsEmpty() ? "" : toWebCoreString(functionName));
+        frameObject->setNumber("lineNumber", frame->GetLineNumber());
+        frameObject->setNumber("column", frame->GetColumn());
+        stackTrace->pushObject(frameObject);
+    }
+    return true;
+#else
+    return false;
+#endif
+}
+
+} // namespace WebCore