/*
* [The "BSD licence"]
* Copyright (c) 2005-2008 Terence Parr
* All rights reserved.
*
* Conversion to C#:
* Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/
namespace Antlr.Runtime.Debug {
using System.Collections.Generic;
/** <summary>
* Broadcast debug events to multiple listeners. Lets you debug and still
* use the event mechanism to build parse trees etc... Not thread-safe.
* Don't add events in one thread while parser fires events in another.
* </summary>
*
* <seealso cref="DebugEventRepeater"/>
*/
public class DebugEventHub : IDebugEventListener {
List<IDebugEventListener> _listeners = new List<IDebugEventListener>();
public DebugEventHub(params IDebugEventListener[] listeners) {
_listeners = new List<IDebugEventListener>(listeners);
}
public virtual void Initialize() {
}
/** <summary>
* Add another listener to broadcast events too. Not thread-safe.
* Don't add events in one thread while parser fires events in another.
* </summary>
*/
public virtual void AddListener(IDebugEventListener listener) {
_listeners.Add(listener);
}
/* To avoid a mess like this:
public void enterRule(final String ruleName) {
broadcast(new Code(){
public void exec(DebugEventListener listener) {listener.enterRule(ruleName);}}
);
}
I am dup'ing the for-loop in each. Where are Java closures!? blech!
*/
public virtual void EnterRule(string grammarFileName, string ruleName) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.EnterRule(grammarFileName, ruleName);
}
}
public virtual void ExitRule(string grammarFileName, string ruleName) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.ExitRule(grammarFileName, ruleName);
}
}
public virtual void EnterAlt(int alt) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.EnterAlt(alt);
}
}
public virtual void EnterSubRule(int decisionNumber) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.EnterSubRule(decisionNumber);
}
}
public virtual void ExitSubRule(int decisionNumber) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.ExitSubRule(decisionNumber);
}
}
public virtual void EnterDecision(int decisionNumber, bool couldBacktrack) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.EnterDecision(decisionNumber, couldBacktrack);
}
}
public virtual void ExitDecision(int decisionNumber) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.ExitDecision(decisionNumber);
}
}
public virtual void Location(int line, int pos) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.Location(line, pos);
}
}
public virtual void ConsumeToken(IToken token) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.ConsumeToken(token);
}
}
public virtual void ConsumeHiddenToken(IToken token) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.ConsumeHiddenToken(token);
}
}
public virtual void LT(int index, IToken t) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.LT(index, t);
}
}
public virtual void Mark(int index) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.Mark(index);
}
}
public virtual void Rewind(int index) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.Rewind(index);
}
}
public virtual void Rewind() {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.Rewind();
}
}
public virtual void BeginBacktrack(int level) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.BeginBacktrack(level);
}
}
public virtual void EndBacktrack(int level, bool successful) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.EndBacktrack(level, successful);
}
}
public virtual void RecognitionException(RecognitionException e) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.RecognitionException(e);
}
}
public virtual void BeginResync() {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.BeginResync();
}
}
public virtual void EndResync() {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.EndResync();
}
}
public virtual void SemanticPredicate(bool result, string predicate) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.SemanticPredicate(result, predicate);
}
}
public virtual void Commence() {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.Commence();
}
}
public virtual void Terminate() {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.Terminate();
}
}
#region Tree parsing stuff
public virtual void ConsumeNode(object t) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.ConsumeNode(t);
}
}
public virtual void LT(int index, object t) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.LT(index, t);
}
}
#endregion
#region AST Stuff
public virtual void NilNode(object t) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.NilNode(t);
}
}
public virtual void ErrorNode(object t) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.ErrorNode(t);
}
}
public virtual void CreateNode(object t) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.CreateNode(t);
}
}
public virtual void CreateNode(object node, IToken token) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.CreateNode(node, token);
}
}
public virtual void BecomeRoot(object newRoot, object oldRoot) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.BecomeRoot(newRoot, oldRoot);
}
}
public virtual void AddChild(object root, object child) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.AddChild(root, child);
}
}
public virtual void SetTokenBoundaries(object t, int tokenStartIndex, int tokenStopIndex) {
for (int i = 0; i < _listeners.Count; i++) {
IDebugEventListener listener = _listeners[i];
listener.SetTokenBoundaries(t, tokenStartIndex, tokenStopIndex);
}
}
#endregion
}
}