/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of the OpenSimulator Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``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 CONTRIBUTORS 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.
 */

using System;
using System.Reflection;
using System.Reflection.Emit;

namespace OpenSim.Region.ScriptEngine.Yengine
{
    public interface ScriptMyILGen
    {
        string methName
        {
            get;
        }
        ScriptMyLocal DeclareLocal(Type type, string name);
        ScriptMyLabel DefineLabel(string name);
        void BeginExceptionBlock();
        void BeginCatchBlock(Type excType);
        void BeginFinallyBlock();
        void EndExceptionBlock();
        void Emit(Token errorAt, OpCode opcode);
        void Emit(Token errorAt, OpCode opcode, FieldInfo field);
        void Emit(Token errorAt, OpCode opcode, ScriptMyLocal myLocal);
        void Emit(Token errorAt, OpCode opcode, Type type);
        void Emit(Token errorAt, OpCode opcode, ScriptMyLabel myLabel);
        void Emit(Token errorAt, OpCode opcode, ScriptMyLabel[] myLabels);
        void Emit(Token errorAt, OpCode opcode, ScriptObjWriter method);
        void Emit(Token errorAt, OpCode opcode, MethodInfo method);
        void Emit(Token errorAt, OpCode opcode, ConstructorInfo ctor);
        void Emit(Token errorAt, OpCode opcode, double value);
        void Emit(Token errorAt, OpCode opcode, float value);
        void Emit(Token errorAt, OpCode opcode, int value);
        void Emit(Token errorAt, OpCode opcode, string value);
        void MarkLabel(ScriptMyLabel myLabel);
    }

    /**
     * @brief One of these per label defined in the function.
     */
    public class ScriptMyLabel
    {
        public string name;
        public int number;

        public GraphNodeMarkLabel whereAmI;
        public Type[] stackDepth;
        public bool[] stackBoxeds;
    }

    /**
     * @brief One of these per local variable defined in the function.
     */
    public class ScriptMyLocal
    {
        public string name;
        public Type type;
        public int number;

        public bool isReferenced;
    }
}