/*
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.rpc.client.ast;
import java.util.List;
/**
* Describes a visitor that will traverse the RpcCommand structures.
*/
public class RpcCommandVisitor {
/**
* The context provides no services at this point and is provided as an
* extension point for future development.
*/
public interface Context {
}
/**
* @param x a node in an RpcCommand structure
*/
public final void accept(List<? extends RpcCommand> x) {
doAccept(x);
}
/**
* @param x a node in an RpcCommand structure
*/
public final RpcCommand accept(RpcCommand x) {
return doAccept(x);
}
/**
* @param x a node in an RpcCommand structure
*/
public final void accept(RpcCommand[] x) {
doAccept(x);
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(ArrayValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(BooleanValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(ByteValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(CharValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(DoubleValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(EnumValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(FloatValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(InstantiateCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(IntValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(InvokeCustomFieldSerializerCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(LongValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(NullValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(ReturnCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(SetCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(ShortValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(StringValueCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public void endVisit(ThrowCommand x, Context ctx) {
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(ArrayValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(BooleanValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(ByteValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(CharValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(DoubleValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(EnumValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(FloatValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(InstantiateCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(IntValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(InvokeCustomFieldSerializerCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(LongValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(NullValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(ReturnCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(SetCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(ShortValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(StringValueCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
* @param ctx the context for the visit
*/
public boolean visit(ThrowCommand x, Context ctx) {
return true;
}
/**
* @param x a node in an RpcCommand structure
*/
protected void doAccept(List<? extends RpcCommand> x) {
for (RpcCommand c : x) {
accept(c);
}
}
/**
* @param x a node in an RpcCommand structure
*/
protected RpcCommand doAccept(RpcCommand x) {
x.traverse(this, null);
return x;
}
/**
* @param x a node in an RpcCommand structure
*/
protected void doAccept(RpcCommand[] x) {
for (RpcCommand c : x) {
accept(c);
}
}
/*
* TODO: Make this fail more visibly
*/
protected final void halt(Throwable t) {
throw new RuntimeException("Unable to continue", t);
}
}