Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)

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

1 files changed, 109 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/bytecode/StructureSet.cpp b/Source/JavaScriptCore/bytecode/StructureSet.cpp
new file mode 100644
index 000000000..40fea8da3
--- /dev/null
+++ b/Source/JavaScriptCore/bytecode/StructureSet.cpp
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2014, 2015 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 "StructureSet.h"
+
+#include "DFGAbstractValue.h"
+#include "TrackedReferences.h"
+#include <wtf/CommaPrinter.h>
+
+namespace JSC {
+
+#if ENABLE(DFG_JIT)
+
+void StructureSet::filter(const DFG::StructureAbstractValue& other)
+{
+    genericFilter([&] (Structure* structure) -> bool { return other.contains(structure); });
+}
+
+void StructureSet::filter(SpeculatedType type)
+{
+    genericFilter(
+        [&] (Structure* structure) -> bool {
+            return type & speculationFromStructure(structure);
+        });
+}
+
+void StructureSet::filterArrayModes(ArrayModes arrayModes)
+{
+    genericFilter(
+        [&] (Structure* structure) -> bool {
+            return arrayModes & arrayModeFromStructure(structure);
+        });
+}
+
+void StructureSet::filter(const DFG::AbstractValue& other)
+{
+    filter(other.m_structure);
+    filter(other.m_type);
+    filterArrayModes(other.m_arrayModes);
+}
+
+#endif // ENABLE(DFG_JIT)
+
+SpeculatedType StructureSet::speculationFromStructures() const
+{
+    SpeculatedType result = SpecNone;
+    forEach(
+        [&] (Structure* structure) {
+            mergeSpeculation(result, speculationFromStructure(structure));
+        });
+    return result;
+}
+
+ArrayModes StructureSet::arrayModesFromStructures() const
+{
+    ArrayModes result = 0;
+    forEach(
+        [&] (Structure* structure) {
+            mergeArrayModes(result, asArrayModes(structure->indexingType()));
+        });
+    return result;
+}
+
+void StructureSet::dumpInContext(PrintStream& out, DumpContext* context) const
+{
+    CommaPrinter comma;
+    out.print("[");
+    forEach([&] (Structure* structure) { out.print(comma, inContext(*structure, context)); });
+    out.print("]");
+}
+
+void StructureSet::dump(PrintStream& out) const
+{
+    dumpInContext(out, nullptr);
+}
+
+void StructureSet::validateReferences(const TrackedReferences& trackedReferences) const
+{
+    forEach(
+        [&] (Structure* structure) {
+            trackedReferences.check(structure);
+        });
+}
+
+} // namespace JSC
+