From 66b82ca2dec555661e898da20bf48d5f737a2c2e Mon Sep 17 00:00:00 2001
From: brian <brian@xwt.org>
Date: Fri, 30 Jan 2004 07:03:29 +0000
Subject: [PATCH] 2003/07/07 01:50:03

darcs-hash:20040130070329-aa32f-dd00bed603eb776a0e742951d4e14e4e83ee6f2b.gz
---
 src/org/xwt/js/CompiledFunctionImpl.java |   12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/org/xwt/js/CompiledFunctionImpl.java b/src/org/xwt/js/CompiledFunctionImpl.java
index 217a613..8f063b2 100644
--- a/src/org/xwt/js/CompiledFunctionImpl.java
+++ b/src/org/xwt/js/CompiledFunctionImpl.java
@@ -37,7 +37,12 @@ class CompiledFunctionImpl extends JSCallable implements ByteCodes, Tokens {
 
     private CompiledFunctionImpl cloneWithNewParentScope(JS.Scope s) throws IOException {
         CompiledFunctionImpl ret = new JS.CompiledFunction(sourceName, firstLine, null, s);
-        ret.paste(this);
+        // Reuse the same op, arg, line, and size variables for the new "instance" of the function
+        // NOTE: Neither *this* function nor the new function should be modified after this call
+        ret.op = this.op;
+        ret.arg = this.arg;
+        ret.line = this.line;
+        ret.size = this.size;
         return ret;
     }
 
@@ -63,7 +68,7 @@ class CompiledFunctionImpl extends JSCallable implements ByteCodes, Tokens {
         try {
             cx.currentCompiledFunction = (CompiledFunction)this;
             int size = cx.stack.size();
-            cx.stack.push(new CallMarker());
+            cx.stack.push(callMarker);
             cx.stack.push(args);
             eval(scope);
             Object ret = cx.stack.pop();
@@ -454,7 +459,7 @@ class CompiledFunctionImpl extends JSCallable implements ByteCodes, Tokens {
 
     // FunctionScope /////////////////////////////////////////////////////////////////
 
-    private class FunctionScope extends JS.Scope {
+    private static class FunctionScope extends JS.Scope {
         String sourceName;
         public FunctionScope(String sourceName, Scope parentScope) { super(parentScope); this.sourceName = sourceName; }
         public String getSourceName() { return sourceName; }
@@ -464,6 +469,7 @@ class CompiledFunctionImpl extends JSCallable implements ByteCodes, Tokens {
     // Markers //////////////////////////////////////////////////////////////////////
 
     public static class CallMarker { public CallMarker() { } }
+    private static CallMarker callMarker = new CallMarker();
     
     public static class CatchMarker { public CatchMarker() { } }
     private static CatchMarker catchMarker = new CatchMarker();
-- 
1.7.10.4