JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / dfg / DFGVariableAccessDataDump.cpp

diff --git a/dfg/DFGVariableAccessDataDump.cpp b/dfg/DFGVariableAccessDataDump.cpp
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+/*
+ * Copyright (C) 2012 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 "DFGVariableAccessDataDump.h"
+
+#if ENABLE(DFG_JIT)
+
+#include "DFGGraph.h"
+#include "DFGVariableAccessData.h"
+
+namespace JSC { namespace DFG {
+
+VariableAccessDataDump::VariableAccessDataDump(Graph& graph, VariableAccessData* data)
+    : m_graph(graph)
+    , m_data(data)
+{
+}
+
+void VariableAccessDataDump::dump(PrintStream& out) const
+{
+    unsigned index = std::numeric_limits<unsigned>::max();
+    for (unsigned i = 0; i < m_graph.m_variableAccessData.size(); ++i) {
+        if (&m_graph.m_variableAccessData[i] == m_data) {
+            index = i;
+            break;
+        }
+    }
+    
+    ASSERT(index != std::numeric_limits<unsigned>::max());
+    
+    if (!index) {
+        out.print("a");
+        return;
+    }
+
+    while (index) {
+        out.print(CharacterDump('A' + (index % 26)));
+        index /= 26;
+    }
+    
+    if (m_data->isCaptured())
+        out.print("*");
+    else if (m_data->shouldNeverUnbox())
+        out.print("!");
+    else if (!m_data->shouldUnboxIfPossible())
+        out.print("~");
+
+    out.print(AbbreviatedSpeculationDump(m_data->prediction()));
+}
+
+} } // namespace JSC::DFG
+
+#endif // ENABLE(DFG_JIT)
+
+