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/* 
 * Copyright 2016 Jakub Herkel.
 *
 * Licensed under the Apache License, Version 2.0 (the "License",T context);
 * 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 sk.uniq.protobuf.schema;

/**
 *
 * @author jherkel
 */
public interface ProtoSchemaVisitor {

    public void visit(ProtoFile file, T context) throws Exception;

    public void visit(ProtoVersion version, T context) throws Exception;
    
    public void visit(ProtoPackage packagePB, T context) throws Exception;     

    public void visit(ProtoEnum enumPB, T context) throws Exception;

    public void visit(ProtoEnumField enumField, T context) throws Exception;

    public void visit(ProtoIdentifier identifier, T context) throws Exception;

    public void visit(ProtoImport importPB, T context) throws Exception;

    public void visit(ProtoMap map, T context) throws Exception;

    public void visit(ProtoMessage message, T context) throws Exception;

    public void visit(ProtoMessageField messageField, T context) throws Exception;

    public void visit(ProtoOption option, T context) throws Exception;

    public void visit(ProtoOneOf oneof, T context) throws Exception;

    public void visit(ProtoOneOfField oneOfField, T context) throws Exception;

    public void visit(ProtoReserved reserved, T context) throws Exception;
    
    public void visit(ProtoRpc rpc, T context) throws Exception;

    public void visit(ProtoService service, T context) throws Exception;

    static  void visitInternal(ProtoSchemaVisitor visitor, ProtoSyntaxElement element, T context) throws Exception {
        switch (element.getType()) {
            case ENUM:
                visitor.visit((ProtoEnum) element, context);
                break;
            case ENUM_FIELD:
                visitor.visit((ProtoEnumField) element, context);
                break;
            case IDENTIFIER:
                visitor.visit((ProtoIdentifier) element, context);
                break;
            case IMPORT:
                visitor.visit((ProtoOption) element, context);
                break;
            case MAP:
                visitor.visit((ProtoMap) element, context);
                break;
            case MESSAGE:
                visitor.visit((ProtoMessage) element, context);
                break;
            case MESSAGE_FIELD:
                visitor.visit((ProtoMessageField) element, context);
                break;
            case ONEOF:
                visitor.visit((ProtoOneOf) element, context);
                break;
            case ONEOF_FIELD:
                visitor.visit((ProtoOneOfField) element, context);
                break;
            case OPTION:
                visitor.visit((ProtoOption) element, context);
                break;
            case PACKAGE:
                visitor.visit((ProtoPackage) element, context);
                break;
            case PROTO:
                visitor.visit((ProtoFile) element, context);
                break;
            case RESERVED:
                visitor.visit((ProtoReserved) element, context);
                break;
            case RPC:
                visitor.visit((ProtoRpc) element, context);
                break;
            case SERVICE:
                visitor.visit((ProtoService) element, context);
                break;
            case VERSION:
                visitor.visit((ProtoVersion) element, context);
                break;
            default:
                throw new IllegalStateException("Unknown type:" + element.getType());
        }
    }

}