From ea980ca9282ad4fe77aca81c675c56e30d721f70 Mon Sep 17 00:00:00 2001 From: lbsa71 Date: Mon, 6 Aug 2007 12:54:58 +0000 Subject: ... and here's the second part... --- .../Engines/LSLEngine/LSLHandler/LSO_Parser.cs | 629 +++++++++++++++++++++ 1 file changed, 629 insertions(+) create mode 100644 OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs (limited to 'OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs') diff --git a/OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs b/OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs new file mode 100644 index 0000000..4ad1f83 --- /dev/null +++ b/OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs @@ -0,0 +1,629 @@ +/* +* Copyright (c) Contributors, http://www.openmetaverse.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 OpenSim 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. +* +*/ +/* Original code: Tedd Hansen */ +using System; +using System.Collections.Generic; +using System.Text; +using System.IO; +using System.Reflection; +using System.Reflection.Emit; + +namespace OpenSim.Region.Scripting.LSL +{ + partial class LSO_Parser + { + private FileStream fs; + private BinaryReader br; + private LSO_Struct.Header myHeader; + + private TypeBuilder typeBuilder; + private System.Collections.Generic.List EventList = new System.Collections.Generic.List(); + + /// + /// Parse LSO file. + /// Reads LSO ByteCode into memory structures. + /// TODO: What else does it do? + /// + /// FileName of LSO ByteCode file + public void ParseFile(string FileName, TypeBuilder _typeBuilder) + { + typeBuilder = _typeBuilder; + //WorldAPI = _WorldAPI; + // Open + Common.SendToDebug("Opening filename: " + FileName); + fs = File.Open(FileName, FileMode.Open, FileAccess.Read, FileShare.Read); + br = new BinaryReader(fs, Encoding.BigEndianUnicode); + + + // The LSO Format consist of 6 major blocks: header, statics, functions, states, heap, and stack. + + + // HEADER BLOCK + Common.SendToDebug("Reading HEADER BLOCK at: 0"); + fs.Seek(0, SeekOrigin.Begin); + myHeader = new LSO_Struct.Header(); + myHeader.TM = BitConverter.ToUInt32(br_read(4), 0); + myHeader.IP = BitConverter.ToUInt32(br_read(4), 0); + myHeader.VN = BitConverter.ToUInt32(br_read(4), 0); + myHeader.BP = BitConverter.ToUInt32(br_read(4), 0); + myHeader.SP = BitConverter.ToUInt32(br_read(4), 0); + myHeader.HR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.HP = BitConverter.ToUInt32(br_read(4), 0); + myHeader.CS = BitConverter.ToUInt32(br_read(4), 0); + myHeader.NS = BitConverter.ToUInt32(br_read(4), 0); + myHeader.CE = BitConverter.ToUInt32(br_read(4), 0); + myHeader.IE = BitConverter.ToUInt32(br_read(4), 0); + myHeader.ER = BitConverter.ToUInt32(br_read(4), 0); + myHeader.FR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.SLR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.GVR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.GFR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.PR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.ESR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.SR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.NCE = BitConverter.ToUInt64(br_read(8), 0); + myHeader.NIE = BitConverter.ToUInt64(br_read(8), 0); + myHeader.NER = BitConverter.ToUInt64(br_read(8), 0); + + // Print Header Block to debug + Common.SendToDebug("TM - Top of memory (size): " + myHeader.TM); + Common.SendToDebug("IP - Instruction Pointer (0=not running): " + myHeader.IP); + Common.SendToDebug("VN - Version number: " + myHeader.VN); + Common.SendToDebug("BP - Local Frame Pointer: " + myHeader.BP); + Common.SendToDebug("SP - Stack Pointer: " + myHeader.SP); + Common.SendToDebug("HR - Heap Register: " + myHeader.HR); + Common.SendToDebug("HP - Heap Pointer: " + myHeader.HP); + Common.SendToDebug("CS - Current State: " + myHeader.CS); + Common.SendToDebug("NS - Next State: " + myHeader.NS); + Common.SendToDebug("CE - Current Events: " + myHeader.CE); + Common.SendToDebug("IE - In Event: " + myHeader.IE); + Common.SendToDebug("ER - Event Register: " + myHeader.ER); + Common.SendToDebug("FR - Fault Register: " + myHeader.FR); + Common.SendToDebug("SLR - Sleep Register: " + myHeader.SLR); + Common.SendToDebug("GVR - Global Variable Register: " + myHeader.GVR); + Common.SendToDebug("GFR - Global Function Register: " + myHeader.GFR); + Common.SendToDebug("PR - Parameter Register: " + myHeader.PR); + Common.SendToDebug("ESR - Energy Supply Register: " + myHeader.ESR); + Common.SendToDebug("SR - State Register: " + myHeader.SR); + Common.SendToDebug("NCE - 64-bit Current Events: " + myHeader.NCE); + Common.SendToDebug("NIE - 64-bit In Events: " + myHeader.NIE); + Common.SendToDebug("NER - 64-bit Event Register: " + myHeader.NER); + Common.SendToDebug("Read position when exiting HEADER BLOCK: " + fs.Position); + + // STATIC BLOCK + Common.SendToDebug("Reading STATIC BLOCK at: " + myHeader.GVR); + fs.Seek(myHeader.GVR, SeekOrigin.Begin); + int StaticBlockCount = 0; + // Read function blocks until we hit GFR + while (fs.Position < myHeader.GFR) + { + StaticBlockCount++; + Common.SendToDebug("Reading Static Block " + StaticBlockCount + " at: " + fs.Position); + //fs.Seek(myHeader.GVR, SeekOrigin.Begin); + LSO_Struct.StaticBlock myStaticBlock = new LSO_Struct.StaticBlock(); + myStaticBlock.Static_Chunk_Header_Size = BitConverter.ToUInt32(br_read(4), 0); + myStaticBlock.ObjectType = br_read(1)[0]; + Common.SendToDebug("Static Block ObjectType: " + ((LSO_Enums.Variable_Type_Codes)myStaticBlock.ObjectType).ToString()); + myStaticBlock.Unknown = br_read(1)[0]; + // Size of datatype varies + if (myStaticBlock.ObjectType != 0) + myStaticBlock.BlockVariable = br_read(getObjectSize(myStaticBlock.ObjectType)); + } + Common.SendToDebug("Number of Static Blocks read: " + StaticBlockCount); + + + // FUNCTION BLOCK + // Always right after STATIC BLOCK + LSO_Struct.FunctionBlock myFunctionBlock = new LSO_Struct.FunctionBlock(); + if (myHeader.GFR == myHeader.SR) + { + // If GFR and SR are at same position then there is no fuction block + Common.SendToDebug("No FUNCTION BLOCK found"); + } + else + { + Common.SendToDebug("Reading FUNCTION BLOCK at: " + myHeader.GFR); + fs.Seek(myHeader.GFR, SeekOrigin.Begin); + myFunctionBlock.FunctionCount = BitConverter.ToUInt32(br_read(4), 0); + Common.SendToDebug("Number of functions in Fuction Block: " + myFunctionBlock.FunctionCount); + if (myFunctionBlock.FunctionCount > 0) + { + myFunctionBlock.CodeChunkPointer = new UInt32[myFunctionBlock.FunctionCount]; + for (int i = 0; i < myFunctionBlock.FunctionCount; i++) + { + Common.SendToDebug("Reading function " + i + " at: " + fs.Position); + // TODO: ADD TO FUNCTION LIST (How do we identify it later?) + // Note! Absolute position + myFunctionBlock.CodeChunkPointer[i] = BitConverter.ToUInt32(br_read(4), 0) + myHeader.GFR; + Common.SendToDebug("Fuction " + i + " code chunk position: " + myFunctionBlock.CodeChunkPointer[i]); + } + } + } + + + // STATE FRAME BLOCK + // Always right after FUNCTION BLOCK + Common.SendToDebug("Reading STATE BLOCK at: " + myHeader.SR); + fs.Seek(myHeader.SR, SeekOrigin.Begin); + LSO_Struct.StateFrameBlock myStateFrameBlock = new LSO_Struct.StateFrameBlock(); + myStateFrameBlock.StateCount = BitConverter.ToUInt32(br_read(4), 0); + if (myStateFrameBlock.StateCount > 0) + { + // Initialize array + myStateFrameBlock.StatePointer = new LSO_Struct.StatePointerBlock[myStateFrameBlock.StateCount]; + for (int i = 0; i < myStateFrameBlock.StateCount; i++) + { + Common.SendToDebug("Reading STATE POINTER BLOCK " + (i + 1) + " at: " + fs.Position); + // Position is relative to state frame + myStateFrameBlock.StatePointer[i].Location = myHeader.SR + BitConverter.ToUInt32(br_read(4), 0); + myStateFrameBlock.StatePointer[i].EventMask = new System.Collections.BitArray(br_read(8)); + Common.SendToDebug("Pointer: " + myStateFrameBlock.StatePointer[i].Location); + Common.SendToDebug("Total potential EventMask bits: " + myStateFrameBlock.StatePointer[i].EventMask.Count); + + //// Read STATE BLOCK + //long CurPos = fs.Position; + //fs.Seek(CurPos, SeekOrigin.Begin); + + } + } + + + // STATE BLOCK + // For each StateFrameBlock there is one StateBlock with multiple event handlers + + if (myStateFrameBlock.StateCount > 0) + { + // Go through all State Frame Pointers found + for (int i = 0; i < myStateFrameBlock.StateCount; i++) + { + + fs.Seek(myStateFrameBlock.StatePointer[i].Location, SeekOrigin.Begin); + Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " at: " + fs.Position); + + // READ: STATE BLOCK HEADER + myStateFrameBlock.StatePointer[i].StateBlock = new LSO_Struct.StateBlock(); + myStateFrameBlock.StatePointer[i].StateBlock.StartPos = (UInt32)fs.Position; // Note + myStateFrameBlock.StatePointer[i].StateBlock.HeaderSize = BitConverter.ToUInt32(br_read(4), 0); + myStateFrameBlock.StatePointer[i].StateBlock.Unknown = br_read(1)[0]; + myStateFrameBlock.StatePointer[i].StateBlock.EndPos = (UInt32)fs.Position; // Note + Common.SendToDebug("State block Start Pos: " + myStateFrameBlock.StatePointer[i].StateBlock.StartPos); + Common.SendToDebug("State block Header Size: " + myStateFrameBlock.StatePointer[i].StateBlock.HeaderSize); + Common.SendToDebug("State block Header End Pos: " + myStateFrameBlock.StatePointer[i].StateBlock.EndPos); + + // We need to count number of bits flagged in EventMask? + + + // for each bit in myStateFrameBlock.StatePointer[i].EventMask + + // ADDING TO ALL RIGHT NOW, SHOULD LIMIT TO ONLY THE ONES IN USE + //TODO: Create event hooks + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers = new LSO_Struct.StateBlockHandler[myStateFrameBlock.StatePointer[i].EventMask.Count - 1]; + for (int ii = 0; ii < myStateFrameBlock.StatePointer[i].EventMask.Count - 1; ii++) + { + + if (myStateFrameBlock.StatePointer[i].EventMask.Get(ii) == true) + { + // We got an event + // READ: STATE BLOCK HANDLER + Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " HANDLER matching EVENT MASK " + ii + " (" + ((LSO_Enums.Event_Mask_Values)ii).ToString() + ") at: " + fs.Position); + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer = myStateFrameBlock.StatePointer[i].StateBlock.EndPos + BitConverter.ToUInt32(br_read(4), 0); + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CallFrameSize = BitConverter.ToUInt32(br_read(4), 0); + Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " HANDLER EVENT MASK " + ii + " (" + ((LSO_Enums.Event_Mask_Values)ii).ToString() + ") Code Chunk Pointer: " + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer); + Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " HANDLER EVENT MASK " + ii + " (" + ((LSO_Enums.Event_Mask_Values)ii).ToString() + ") Call Frame Size: " + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CallFrameSize); + } + } + } + } + + + + + //// READ FUNCTION CODE CHUNKS + //// Functions + Function start pos (GFR) + //// TODO: Somehow be able to identify and reference this + //LSO_Struct.CodeChunk[] myFunctionCodeChunk; + //if (myFunctionBlock.FunctionCount > 0) + //{ + // myFunctionCodeChunk = new LSO_Struct.CodeChunk[myFunctionBlock.FunctionCount]; + // for (int i = 0; i < myFunctionBlock.FunctionCount; i++) + // { + // Common.SendToDebug("Reading Function Code Chunk " + i); + // myFunctionCodeChunk[i] = GetCodeChunk((UInt32)myFunctionBlock.CodeChunkPointer[i]); + // } + + //} + // READ EVENT CODE CHUNKS + LSO_Struct.CodeChunk[] myEventCodeChunk; + if (myStateFrameBlock.StateCount > 0) + { + myEventCodeChunk = new LSO_Struct.CodeChunk[myStateFrameBlock.StateCount]; + for (int i = 0; i < myStateFrameBlock.StateCount; i++) + { + // TODO: Somehow organize events and functions so they can be found again, + // two level search ain't no good + for (int ii = 0; ii < myStateFrameBlock.StatePointer[i].EventMask.Count - 1; ii++) + { + + + if (myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer > 0) + { + Common.SendToDebug("Reading Event Code Chunk state " + i + ", event " + (LSO_Enums.Event_Mask_Values)ii); + + + // Override a Method / Function + string eventname = i + "_event_" + (LSO_Enums.Event_Mask_Values)ii; + Common.SendToDebug("Event Name: " + eventname); + if (Common.IL_ProcessCodeChunks) + { + EventList.Add(eventname); + + // JUMP TO CODE PROCESSOR + ProcessCodeChunk(myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer, typeBuilder, eventname); + } + } + + } + + } + + } + + + // Close + br.Close(); + fs.Close(); + + if (Common.IL_CreateFunctionList) + IL_INSERT_FUNCTIONLIST(); + + } + + private LSO_Struct.HeapBlock GetHeap(UInt32 pos) + { + // HEAP BLOCK + // TODO:? Special read for strings/keys (null terminated) and lists (pointers to other HEAP entries) + Common.SendToDebug("Reading HEAP BLOCK at: " + pos); + fs.Seek(pos, SeekOrigin.Begin); + + LSO_Struct.HeapBlock myHeapBlock = new LSO_Struct.HeapBlock(); + myHeapBlock.DataBlockSize = BitConverter.ToUInt32(br_read(4), 0); + myHeapBlock.ObjectType = br_read(1)[0]; + myHeapBlock.ReferenceCount = BitConverter.ToUInt16(br_read(2), 0); + myHeapBlock.Data = br_read(getObjectSize(myHeapBlock.ObjectType)); + + Common.SendToDebug("Heap Block Data Block Size: " + myHeapBlock.DataBlockSize); + Common.SendToDebug("Heap Block ObjectType: " + ((LSO_Enums.Variable_Type_Codes)myHeapBlock.ObjectType).ToString()); + Common.SendToDebug("Heap Block Reference Count: " + myHeapBlock.ReferenceCount); + + return myHeapBlock; + } + private byte[] br_read(int len) + { + if (len <= 0) + return null; + + try + { + byte[] bytes = new byte[len]; + for (int i = len - 1; i > -1; i--) + bytes[i] = br.ReadByte(); + return bytes; + } + catch (Exception e) + { + Common.SendToDebug("Exception: " + e.ToString()); + throw (e); + } + } + //private byte[] br_read_smallendian(int len) + //{ + // byte[] bytes = new byte[len]; + // br.Read(bytes,0, len); + // return bytes; + //} + private Type getLLObjectType(byte objectCode) + { + switch ((LSO_Enums.Variable_Type_Codes)objectCode) + { + case LSO_Enums.Variable_Type_Codes.Void: return typeof(void); + case LSO_Enums.Variable_Type_Codes.Integer: return typeof(UInt32); + case LSO_Enums.Variable_Type_Codes.Float: return typeof(float); + case LSO_Enums.Variable_Type_Codes.String: return typeof(string); + case LSO_Enums.Variable_Type_Codes.Key: return typeof(string); + case LSO_Enums.Variable_Type_Codes.Vector: return typeof(LSO_Enums.Vector); + case LSO_Enums.Variable_Type_Codes.Rotation: return typeof(LSO_Enums.Rotation); + case LSO_Enums.Variable_Type_Codes.List: + Common.SendToDebug("TODO: List datatype not implemented yet!"); + return typeof(System.Collections.ArrayList); + default: + Common.SendToDebug("Lookup of LSL datatype " + objectCode + " to .Net datatype failed: Unknown LSL datatype. Defaulting to object."); + return typeof(object); + } + } + private int getObjectSize(byte ObjectType) + { + switch (ObjectType) + { + case 1: + case 2: + case 3: + case 4: + case 7: + return 4; + case 5: + return 12; + case 6: + return 16; + default: + return 0; + } + } + private string Read_String() + { + string ret = ""; + byte reader = br_read(1)[0]; + while (reader != 0x000) + { + ret += (char)reader; + reader = br_read(1)[0]; + } + return ret; + } + + /// + /// Reads a code chunk and creates IL + /// + /// Absolute position in file. REMEMBER TO ADD myHeader.GFR! + /// TypeBuilder for assembly + /// Name of event (function) to generate + private void ProcessCodeChunk(UInt32 pos, TypeBuilder typeBuilder, string eventname) + { + + LSO_Struct.CodeChunk myCodeChunk = new LSO_Struct.CodeChunk(); + + Common.SendToDebug("Reading Function Code Chunk at: " + pos); + fs.Seek(pos, SeekOrigin.Begin); + myCodeChunk.CodeChunkHeaderSize = BitConverter.ToUInt32(br_read(4), 0); + Common.SendToDebug("CodeChunk Header Size: " + myCodeChunk.CodeChunkHeaderSize); + // Read until null + myCodeChunk.Comment = Read_String(); + Common.SendToDebug("Function comment: " + myCodeChunk.Comment); + myCodeChunk.ReturnType = br_read(1)[0]; + Common.SendToDebug("Return type #" + myCodeChunk.ReturnType + ": " + (getLLObjectType(myCodeChunk.ReturnType).ToString())); + + // TODO: How to determine number of codechunks -- does this method work? + myCodeChunk.CodeChunkArguments = new System.Collections.Generic.List(); + byte reader = br_read(1)[0]; + reader = br_read(1)[0]; + + // NOTE ON CODE CHUNK ARGUMENTS + // This determins type definition + int ccount = 0; + while (reader != 0x000) + { + ccount++; + Common.SendToDebug("Reading Code Chunk Argument " + ccount); + LSO_Struct.CodeChunkArgument CCA = new LSO_Struct.CodeChunkArgument(); + CCA.FunctionReturnType = reader; + reader = br_read(1)[0]; + CCA.NullString = reader; + myCodeChunk.CodeChunkArguments.Add(CCA); + Common.SendToDebug("Code Chunk Argument " + ccount + " type: " + (LSO_Enums.Variable_Type_Codes)CCA.FunctionReturnType); + } + // Create string array + Type[] MethodArgs = new Type[myCodeChunk.CodeChunkArguments.Count]; + for (int _ic = 0; _ic < myCodeChunk.CodeChunkArguments.Count; _ic++) + { + MethodArgs[_ic] = getLLObjectType(myCodeChunk.CodeChunkArguments[_ic].FunctionReturnType); + Common.SendToDebug("Method argument " + _ic + ": " + getLLObjectType(myCodeChunk.CodeChunkArguments[_ic].FunctionReturnType).ToString()); + } + // End marker is 0x000 + myCodeChunk.EndMarker = reader; + + + // + // Emit: START OF METHOD (FUNCTION) + // + + Common.SendToDebug("CLR:" + eventname + ":MethodBuilder methodBuilder = typeBuilder.DefineMethod..."); + MethodBuilder methodBuilder = typeBuilder.DefineMethod(eventname, + MethodAttributes.Public, + typeof(void), + MethodArgs); + //typeof(void), //getLLObjectType(myCodeChunk.ReturnType), + // new Type[] { typeof(object) }, //); + + //Common.SendToDebug("CLR:" + eventname + ":typeBuilder.DefineMethodOverride(methodBuilder..."); + //typeBuilder.DefineMethodOverride(methodBuilder, + // typeof(LSL_CLRInterface.LSLScript).GetMethod(eventname)); + + // Create the IL generator + + Common.SendToDebug("CLR:" + eventname + ":ILGenerator il = methodBuilder.GetILGenerator();"); + ILGenerator il = methodBuilder.GetILGenerator(); + + + if (Common.IL_UseTryCatch) + IL_INSERT_TRY(il, eventname); + + + + // Push Console.WriteLine command to stack ... Console.WriteLine("Hello World!"); + //Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); + //il.Emit(OpCodes.Call, typeof(Console).GetMethod + // ("WriteLine", new Type[] { typeof(string) })); + + //Common.SendToDebug("STARTUP: il.Emit(OpCodes.Ldc_I4_S, 0);"); + + //il.Emit(OpCodes.Ldc_I4_S, 0); + for (int _ic = 0; _ic < myCodeChunk.CodeChunkArguments.Count; _ic++) + { + Common.SendToDebug("PARAMS: il.Emit(OpCodes.Ldarg, " + _ic + ");"); + il.Emit(OpCodes.Ldarg, _ic); + } + + + + // + // CALLING OPCODE PROCESSOR, one command at the time TO GENERATE IL + // + bool FoundRet = false; + while (FoundRet == false) + { + FoundRet = LSL_PROCESS_OPCODE(il); + } + + + if (Common.IL_UseTryCatch) + IL_INSERT_END_TRY(il, eventname); + + // Emit: RETURN FROM METHOD + il.Emit(OpCodes.Ret); + + return; + + } + + private void IL_INSERT_FUNCTIONLIST() + { + + Common.SendToDebug("Creating function list"); + + + string eventname = "GetFunctions"; + + Common.SendToDebug("Creating IL " + eventname); + // Define a private String field. + //FieldBuilder myField = myTypeBuilder.DefineField("EventList", typeof(String[]), FieldAttributes.Public); + + + //FieldBuilder mem = typeBuilder.DefineField("mem", typeof(Array), FieldAttributes.Private); + + + + MethodBuilder methodBuilder = typeBuilder.DefineMethod(eventname, + MethodAttributes.Public, + typeof(string[]), + null); + + //typeBuilder.DefineMethodOverride(methodBuilder, + // typeof(LSL_CLRInterface.LSLScript).GetMethod(eventname)); + + ILGenerator il = methodBuilder.GetILGenerator(); + + + + + // IL_INSERT_TRY(il, eventname); + + // // Push string to stack + // il.Emit(OpCodes.Ldstr, "Inside " + eventname); + + //// Push Console.WriteLine command to stack ... Console.WriteLine("Hello World!"); + //il.Emit(OpCodes.Call, typeof(Console).GetMethod + // ("WriteLine", new Type[] { typeof(string) })); + + //initIL.Emit(OpCodes.Newobj, typeof(string[])); + + //string[] MyArray = new string[2] { "TestItem1" , "TestItem2" }; + + il.DeclareLocal(typeof(string[])); + + //il.Emit(OpCodes.Ldarg_0); + il.Emit(OpCodes.Ldc_I4, EventList.Count); // Specify array length + il.Emit(OpCodes.Newarr, typeof(String)); // create new string array + il.Emit(OpCodes.Stloc_0); // Store array as local variable 0 in stack + + for (int lv = 0; lv < EventList.Count; lv++) + { + il.Emit(OpCodes.Ldloc_0); // Load local variable 0 onto stack + il.Emit(OpCodes.Ldc_I4, lv); // Push index position + il.Emit(OpCodes.Ldstr, EventList[lv]); // Push value + il.Emit(OpCodes.Stelem_Ref); // Perform array[index] = value + } + + + + // IL_INSERT_END_TRY(il, eventname); + + il.Emit(OpCodes.Ldloc_0); // Load local variable 0 onto stack + il.Emit(OpCodes.Ret); // Return + + } + + + private void IL_INSERT_TRY(ILGenerator il, string eventname) + { + /* + * CLR TRY + */ + //Common.SendToDebug("CLR:" + eventname + ":il.BeginExceptionBlock()"); + il.BeginExceptionBlock(); + + // Push "Hello World!" string to stack + //Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Ldstr..."); + il.Emit(OpCodes.Ldstr, "Starting CLR dynamic execution of: " + eventname); + + } + + private void IL_INSERT_END_TRY(ILGenerator il, string eventname) + { + /* + * CATCH + */ + Common.SendToDebug("CLR:" + eventname + ":il.BeginCatchBlock(typeof(Exception));"); + il.BeginCatchBlock(typeof(Exception)); + + // Push "Hello World!" string to stack + Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Ldstr..."); + il.Emit(OpCodes.Ldstr, "Execption executing dynamic CLR function " + eventname + ": "); + + //call void [mscorlib]System.Console::WriteLine(string) + Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); + il.Emit(OpCodes.Call, typeof(Console).GetMethod + ("Write", new Type[] { typeof(string) })); + + //callvirt instance string [mscorlib]System.Exception::get_Message() + Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Callvirt..."); + il.Emit(OpCodes.Callvirt, typeof(Exception).GetMethod + ("get_Message")); + + //call void [mscorlib]System.Console::WriteLine(string) + Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); + il.Emit(OpCodes.Call, typeof(Console).GetMethod + ("WriteLine", new Type[] { typeof(string) })); + + /* + * CLR END TRY + */ + //Common.SendToDebug("CLR:" + eventname + ":il.EndExceptionBlock();"); + il.EndExceptionBlock(); + } + + } +} -- cgit v1.1