webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 84 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/domjit/DOMJITAbstractHeap.cpp b/Source/JavaScriptCore/domjit/DOMJITAbstractHeap.cpp
new file mode 100644
index 000000000..f4855b9d2
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+++ b/Source/JavaScriptCore/domjit/DOMJITAbstractHeap.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2016 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 "DOMJITAbstractHeap.h"
+
+#if ENABLE(JIT)
+
+namespace JSC { namespace DOMJIT {
+
+void AbstractHeap::compute(unsigned begin)
+{
+    unsigned current = begin;
+    // Increment the end of the range.
+    if (m_children.isEmpty()) {
+        m_range = HeapRange(begin, current + 1);
+        return;
+    }
+    for (auto& child : m_children) {
+        child->compute(current);
+        current = child->range().end();
+    }
+    ASSERT(begin < UINT16_MAX);
+    ASSERT(current <= UINT16_MAX);
+    m_range = HeapRange(begin, current);
+}
+
+void AbstractHeap::dump(PrintStream& out) const
+{
+    shallowDump(out);
+    if (m_parent)
+        out.print("->", *m_parent);
+}
+
+void AbstractHeap::shallowDump(PrintStream& out) const
+{
+    out.print(m_name, "<", m_range, ">");
+}
+
+void AbstractHeap::deepDump(PrintStream& out, unsigned indent) const
+{
+    auto printIndent = [&] () {
+        for (unsigned i = indent; i--;)
+            out.print("    ");
+    };
+
+    printIndent();
+    shallowDump(out);
+
+    if (m_children.isEmpty()) {
+        out.print("\n");
+        return;
+    }
+
+    out.print(":\n");
+    for (auto* child : m_children)
+        child->deepDump(out, indent + 1);
+}
+
+} }
+
+#endif