--- parser3/src/include/pa_pool.h	2001/01/26 18:55:55	1.6
+++ parser3/src/include/pa_pool.h	2001/02/20 18:45:51	1.22
@@ -1,5 +1,5 @@
 /*
-  $Id: pa_pool.h,v 1.6 2001/01/26 18:55:55 paf Exp $
+  $Id: pa_pool.h,v 1.22 2001/02/20 18:45:51 paf Exp $
 */
 
 #ifndef PA_POOL_H
@@ -7,26 +7,55 @@
 
 #include <stddef.h>
 
-#include "pa_string.h"
-#include "pa_hash.h"
+class String;
+class Exception;
 
 class Pool {
 public:
-	Pool();
-	~Pool();
-    void *malloc(size_t size);
-    void *calloc(size_t size);
 
-	String *make_string() { 
-		return new(this) String(this);
+	// Exception to report pool errors 
+	Pool(Exception& aexception) : fexception(aexception) {}
+	~Pool() {}
+
+	Exception& exception() { return fexception; }
+
+	void *malloc(size_t size) {
+		return check(real_malloc(size), size);
 	}
-	String *make_string(char *src) {
-		return new(this) String(this, src);
+	void *calloc(size_t size) {
+		return check(real_calloc(size), size);
 	}
 
-	Hash *make_hash() {
-		return new(this) Hash(this);
+protected: // implementation defined
+
+    void *real_malloc(size_t size);
+    void *real_calloc(size_t size);
+
+protected:
+
+	Exception& fexception;
+
+	// checks whether mem allocated OK. throws exception otherwise
+	void *check(void *ptr, size_t size);
+
+private: //disabled
+
+	// Pool(const Pool&) {}
+	Pool& operator = (const Pool&) { return *this; }
+};
+
+class Pooled {
+public:
+	static void *operator new(size_t size, Pool& apool) { 
+		return apool.malloc(size);
 	}
+
+	Pooled(Pool& apool) : fpool(apool) {}
+	Pool& pool() const { return fpool; }
+
+protected:
+	// the pool I'm allocated on
+	Pool& fpool;
 };
 
 #endif