1 files changed, 149 insertions, 0 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/optimizer/OptFunctionNode.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/optimizer/OptFunctionNode.java
new file mode 100644
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--- /dev/null
+++ b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/optimizer/OptFunctionNode.java
@@ -0,0 +1,149 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Norris Boyd
+ *   Bob Jervis
+ *   Roger Lawrence
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+
+package org.mozilla.javascript.optimizer;
+
+import org.mozilla.javascript.*;
+
+final class OptFunctionNode
+{
+    OptFunctionNode(FunctionNode fnode)
+    {
+        this.fnode = fnode;
+        fnode.setCompilerData(this);
+    }
+
+    static OptFunctionNode get(ScriptOrFnNode scriptOrFn, int i)
+    {
+        FunctionNode fnode = scriptOrFn.getFunctionNode(i);
+        return (OptFunctionNode)fnode.getCompilerData();
+    }
+
+    static OptFunctionNode get(ScriptOrFnNode scriptOrFn)
+    {
+        return (OptFunctionNode)scriptOrFn.getCompilerData();
+    }
+
+    boolean isTargetOfDirectCall()
+    {
+        return directTargetIndex >= 0;
+    }
+
+    int getDirectTargetIndex()
+    {
+        return directTargetIndex;
+    }
+
+    void setDirectTargetIndex(int directTargetIndex)
+    {
+        // One time action
+        if (directTargetIndex < 0 || this.directTargetIndex >= 0)
+            Kit.codeBug();
+        this.directTargetIndex = directTargetIndex;
+    }
+
+    void setParameterNumberContext(boolean b)
+    {
+        itsParameterNumberContext = b;
+    }
+
+    boolean getParameterNumberContext()
+    {
+        return itsParameterNumberContext;
+    }
+
+    int getVarCount()
+    {
+        return fnode.getParamAndVarCount();
+    }
+
+    boolean isParameter(int varIndex)
+    {
+        return varIndex < fnode.getParamCount();
+    }
+
+    boolean isNumberVar(int varIndex)
+    {
+        varIndex -= fnode.getParamCount();
+        if (varIndex >= 0 && numberVarFlags != null) {
+            return numberVarFlags[varIndex];
+        }
+        return false;
+    }
+
+    void setIsNumberVar(int varIndex)
+    {
+        varIndex -= fnode.getParamCount();
+        // Can only be used with non-parameters
+        if (varIndex < 0) Kit.codeBug();
+        if (numberVarFlags == null) {
+            int size = fnode.getParamAndVarCount() - fnode.getParamCount();
+            numberVarFlags = new boolean[size];
+        }
+        numberVarFlags[varIndex] = true;
+    }
+
+    int getVarIndex(Node n)
+    {
+        int index = n.getIntProp(Node.VARIABLE_PROP, -1);
+        if (index == -1) {
+            Node node;
+            int type = n.getType();
+            if (type == Token.GETVAR) {
+                node = n;
+            } else if (type == Token.SETVAR ||
+                       type == Token.SETCONSTVAR) {
+                node = n.getFirstChild();
+            } else {
+                throw Kit.codeBug();
+            }
+            index = fnode.getIndexForNameNode(node);
+            if (index < 0) throw Kit.codeBug();
+            n.putIntProp(Node.VARIABLE_PROP, index);
+        }
+        return index;
+    }
+
+    FunctionNode fnode;
+    private boolean[] numberVarFlags;
+    private int directTargetIndex = -1;
+    private boolean itsParameterNumberContext;
+    boolean itsContainsCalls0;
+    boolean itsContainsCalls1;
+}