Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)

Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>

1 files changed, 71 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/CompilationResult.h b/Source/JavaScriptCore/runtime/CompilationResult.h
new file mode 100644
index 000000000..db6a0c46a
--- /dev/null
+++ b/Source/JavaScriptCore/runtime/CompilationResult.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 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. 
+ */
+
+#ifndef CompilationResult_h
+#define CompilationResult_h
+
+#include <wtf/PrintStream.h>
+
+namespace JSC {
+
+enum CompilationResult {
+    // We tried to compile the code, but we couldn't compile it. This could be
+    // because we ran out of memory, or because the compiler encountered an
+    // internal error and decided to bail out gracefully. Either way, this implies
+    // that we shouldn't try to compile this code block again.
+    CompilationFailed,
+    
+    // The profiling assumptions that were fed into the compiler were invalidated
+    // even before we finished compiling. This means we should try again: in such
+    // cases the profiling will now be updated and the next compilation won't
+    // encounter the same problem. But it does mean that we should exercise
+    // exponential back-off, to get even more profiling so that new profiling
+    // pathologies aren't encountered.
+    CompilationInvalidated,
+    
+    // The compilation succeeded and the code block now has JITCode for the newly
+    // compiled code. However, compilation success doesn't mean that the CodeBlock
+    // will execute yet; you typically have to install it first, unless you plan
+    // on invoking it manually (something that *could* be done for some kinds of
+    // OSR entry).
+    CompilationSuccessful,
+    
+    // We decided to do the compilation asynchronously. This means that we haven't
+    // yet compiled the code. This only happens when you pass a
+    // DeferredCompilationCallback. That callback will get called with some
+    // interesting result, once compilation completes.
+    CompilationDeferred
+};
+
+} // namespace JSC
+
+namespace WTF {
+
+void printInternal(PrintStream&, JSC::CompilationResult);
+
+} // namespace WTF
+
+#endif // CompilationResult_h
+