A little bit of code support now

FastStack.h

@@ -0,0 +1,47 @@
+#ifndef _PYC_FASTSTACK_H
+#define _PYC_FASTSTACK_H
+
+#include "ASTNode.h"
+#include <stack>
+
+class FastStack {
+public:
+    FastStack(int size) : m_size(size), m_ptr(-1)
+    { m_stack = new PycRef<ASTNode>[m_size]; }
+
+    FastStack(const FastStack& copy) : m_size(copy.m_size), m_ptr(copy.m_ptr)
+    {
+        m_stack = new PycRef<ASTNode>[m_size];
+        for (int i=0; i<m_size; i++)
+            m_stack[i] = copy.m_stack[i];
+    }
+
+    ~FastStack()
+    { delete[] m_stack; }
+
+    void push(PycRef<ASTNode> node)
+    { m_stack[++m_ptr] = node; }
+
+    void pop()
+    { m_stack[m_ptr--] = Node_NULL; }
+
+    PycRef<ASTNode> top() const
+    { return m_stack[m_ptr]; }
+
+    void replace(const FastStack& copy)
+    {
+        for (int i=0; i<=copy.m_ptr; i++)
+            m_stack[i] = copy.m_stack[i];
+        for (int i=copy.m_ptr+1; i<=m_ptr; i++)
+            m_stack[i] = Node_NULL;
+        m_ptr = copy.m_ptr;
+    }
+
+private:
+    PycRef<ASTNode>* m_stack;
+    int m_size, m_ptr;
+};
+
+typedef std::stack<FastStack> stackhist_t;
+
+#endif