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Converter.cs
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Converter.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Text;
namespace Neo.Compiler.MSIL
{
//public class Converter
//{
// public static byte[] Convert(System.IO.Stream dllstream, ILogger logger = null)
// {
// var module = new ILModule();
// module.LoadModule(dllstream, null);
// if (logger == null)
// {
// logger = new DefLogger();
// }
// var converter = new ModuleConverter(logger);
// //有异常的话在 convert 函数中会直接throw 出来
// var antmodule = converter.Convert(module);
// return antmodule.Build();
// }
//}
class DefLogger : ILogger
{
public void Log(string log)
{
Console.WriteLine(log);
}
}
/// <summary>
/// 从ILCode 向小蚁 VM 转换的转换器
/// </summary>
public partial class ModuleConverter
{
public ModuleConverter(ILogger logger)
{
if (logger == null)
{
logger = new DefLogger();
}
this.logger = logger;
#if NET47
try
{
var assm = System.Reflection.Assembly.GetAssembly(typeof(System.Action));
var name = System.IO.Path.GetFileName(assm.Location);
if (name.ToLower() == "mscorlib.dll")
{
var path = System.IO.Path.GetFullPath(".");
System.IO.File.Copy(assm.Location, System.IO.Path.Combine(path, name));
}
}
catch
{
}
//assm.Location
#endif
}
private readonly ILogger logger;
public NeoModule outModule;
private ILModule inModule;
public Dictionary<ILMethod, NeoMethod> methodLink = new Dictionary<ILMethod, NeoMethod>();
public NeoModule Convert(ILModule _in, ConvOption option = null)
{
this.inModule = _in;
//logger.Log("beginConvert.");
this.outModule = new NeoModule(this.logger)
{
option = option ?? ConvOption.Default
};
foreach (var t in _in.mapType)
{
if (t.Key.Contains("<"))
continue;//系统的，不要
if (t.Key.Contains("_API_")) continue;//api的，不要
if (t.Key.Contains(".My."))
continue;//vb system
foreach (var m in t.Value.methods)
{
if (m.Value.method == null) continue;
if (m.Value.method.IsAddOn || m.Value.method.IsRemoveOn)
continue;//event 自动生成的代码，不要
if (m.Value.method.Is_cctor())
{
CctorSubVM.Parse(m.Value, this.outModule);
continue;
}
if (m.Value.method.Is_ctor()) continue;
NeoMethod nm = new NeoMethod(m.Value);
this.methodLink[m.Value] = nm;
outModule.mapMethods[nm.name] = nm;
}
foreach (var e in t.Value.fields)
{
if (e.Value.isEvent)
{
NeoEvent ae = new NeoEvent(e.Value);
outModule.mapEvents[ae.name] = ae;
}
else if (e.Value.field.IsStatic)
{
var _fieldindex = outModule.mapFields.Count;
var field = new NeoField(e.Key, e.Value.type, _fieldindex);
outModule.mapFields[e.Value.field.FullName] = field;
}
}
}
var keys = new List<string>(_in.mapType.Keys);
foreach (var key in keys)
{
var value = _in.mapType[key];
if (key.Contains("<"))
continue;//系统的，不要
if (key.Contains("_API_")) continue;//api的，不要
if (key.Contains(".My."))
continue;//vb system
foreach (var m in value.methods)
{
if (m.Value.method == null) continue;
if (m.Value.method.Is_cctor())
{
continue;
}
if (m.Value.method.IsAddOn || m.Value.method.IsRemoveOn)
continue;//event 自动生成的代码，不要
var nm = this.methodLink[m.Value];
//try
{
nm.returntype = m.Value.returntype;
try
{
var type = m.Value.method.ReturnType.Resolve();
foreach (var i in type.Interfaces)
{
if (i.InterfaceType.Name == "IApiInterface")
{
nm.returntype = "IInteropInterface";
}
}
}
catch
{
}
foreach (var src in m.Value.paramtypes)
{
nm.paramtypes.Add(new NeoParam(src.name, src.type));
}
if (IsAppCall(m.Value.method, out byte[] outcall))
continue;
if (IsNonCall(m.Value.method))
continue;
if (IsMixAttribute(m.Value.method, out VM.OpCode[] opcodes, out string[] opdata))
continue;
if (m.Key.Contains("::Main("))
{
NeoMethod _m = outModule.mapMethods[m.Key];
if (_m.inSmartContract)
{
nm.isEntry = true;
}
}
this.ConvertMethod(m.Value, nm);
}
//catch (Exception err)
//{
// logger.Log("error:" + err.Message);
//}
}
}
//转换完了，做个link，全部拼到一起
string mainmethod = "";
foreach (var key in outModule.mapMethods.Keys)
{
if (key.Contains("::Main("))
{
NeoMethod m = outModule.mapMethods[key];
if (m.inSmartContract)
{
foreach (var l in this.methodLink)
{
if (l.Value == m)
{
if (mainmethod != "")
throw new Exception("Have too mush EntryPoint,Check it.");
mainmethod = key;
}
}
}
}
}
if (mainmethod == "")
{
mainmethod = InsertAutoEntry();
logger.Log("Auto Insert entrypoint.");
}
else
{
//单一默认入口
logger.Log("Find entrypoint:" + mainmethod);
}
var attr = outModule.mapMethods.Values.Where(u => u.inSmartContract).Select(u => u.type.attributes.ToArray()).FirstOrDefault();
if (attr?.Length > 0)
{
outModule.attributes.AddRange(attr);
}
outModule.mainMethod = mainmethod;
this.LinkCode(mainmethod);
//this.findFirstFunc();//得找到第一个函数
//然后给每个method 分配一个func addr
//还需要对所有的call 做一次地址转换
//this.outModule.Build();
return outModule;
}
private string InsertAutoEntry()
{
string name = "::autoentrypoint";
NeoMethod autoEntry = new NeoMethod();
autoEntry._namespace = "";
autoEntry.name = "Main";
autoEntry.displayName = "Main";
autoEntry.paramtypes.Add(new NeoParam(name, "string"));
autoEntry.paramtypes.Add(new NeoParam(name, "array"));
autoEntry.returntype = "object";
autoEntry.funcaddr = 0;
FillEntryMethod(autoEntry);
outModule.mapMethods[name] = autoEntry;
return name;
}
private void FillEntryMethod(NeoMethod to)
{
this.addr = 0;
this.addrconv.Clear();
#if DEBUG
_Insert1(VM.OpCode.NOP, "this is a debug code.", to);
#endif
_insertSharedStaticVarCode(to);
_insertBeginCodeEntry(to);
List<int> calladdr = new List<int>();
List<int> calladdrbegin = new List<int>();
//add callfunc
foreach (var m in this.outModule.mapMethods)
{
if (m.Value.inSmartContract && m.Value.isPublic)
{//add a call;
//get name
calladdrbegin.Add(this.addr);
_Insert1(VM.OpCode.DUPFROMALTSTACK, "get name", to);
_InsertPush(0, "", to);
_Insert1(VM.OpCode.PICKITEM, "", to);
_InsertPush(System.Text.Encoding.UTF8.GetBytes(m.Value.displayName), "", to);
_Insert1(VM.OpCode.NUMEQUAL, "", to);
calladdr.Add(this.addr);//record add fix jumppos later
_Insert1(VM.OpCode.JMPIFNOT, "tonextcallpos", to, new byte[] { 0, 0 });
if (m.Value.paramtypes.Count > 0)
{
for (var i = m.Value.paramtypes.Count - 1; i >= 0; i--)
{
_Insert1(VM.OpCode.DUPFROMALTSTACK, "get params", to);
_InsertPush(1, "", to);
_Insert1(VM.OpCode.PICKITEM, "", to);
_InsertPush(i, "get one param:" + i, to);
_Insert1(VM.OpCode.PICKITEM, "", to);
}
//add params;
}
//call and return it
var c = _Insert1(VM.OpCode.CALL, "", to, new byte[] { 0, 0 });
c.needfixfunc = true;
c.srcfunc = m.Key;
if (m.Value.returntype == "System.Void")
{
_Insert1(VM.OpCode.PUSH0, "", to);
}
_insertEndCode(to, null);
_Insert1(VM.OpCode.RET, "", to);
}
}
//add returen
calladdrbegin.Add(this.addr);//record add fix jumppos later
_insertEndCode(to, null);
//if go here,mean methodname is wrong
//use throw to instead ret,make vm fault.
_Insert1(VM.OpCode.THROW, "", to);
//_Insert1(VM.OpCode.RET, "", to);
//convert all Jmp
for (var i = 0; i < calladdr.Count; i++)
{
var addr = calladdr[i];
var nextaddr = calladdrbegin[i + 1];
var op = to.body_Codes[addr];
Int16 addroff = (Int16)(nextaddr - addr);
op.bytes = BitConverter.GetBytes(addroff);
}
#if DEBUG
_Insert1(VM.OpCode.NOP, "this is a end debug code.", to);
#endif
ConvertAddrInMethod(to);
}
private void LinkCode(string main)
{
if (this.outModule.mapMethods.ContainsKey(main) == false)
{
throw new Exception("Can't find entrypoint:" + main);
}
var first = this.outModule.mapMethods[main];
first.funcaddr = 0;
this.outModule.total_Codes.Clear();
int addr = 0;
foreach (var c in first.body_Codes)
{
if (addr != c.Key)
{
throw new Exception("sth error");
}
this.outModule.total_Codes[addr] = c.Value;
addr += 1;
if (c.Value.bytes != null)
addr += c.Value.bytes.Length;
}
foreach (var m in this.outModule.mapMethods)
{
if (m.Key == main) continue;
m.Value.funcaddr = addr;
foreach (var c in m.Value.body_Codes)
{
this.outModule.total_Codes[addr] = c.Value;
addr += 1;
if (c.Value.bytes != null)
addr += c.Value.bytes.Length;
//地址偏移
c.Value.addr += m.Value.funcaddr;
}
}
foreach (var c in this.outModule.total_Codes.Values)
{
if (c.needfixfunc)
{//需要地址转换
var addrfunc = this.outModule.mapMethods[c.srcfunc].funcaddr;
if (c.bytes.Length > 2)
{
var len = c.bytes.Length - 2;
int wantaddr = addrfunc - c.addr - len;
if (wantaddr < Int16.MinValue || wantaddr > Int16.MaxValue)
{
throw new Exception("addr jump is too far.");
}
Int16 addrconv = (Int16)wantaddr;
var bts = BitConverter.GetBytes(addrconv);
c.bytes[c.bytes.Length - 2] = bts[0];
c.bytes[c.bytes.Length - 1] = bts[1];
}
else if (c.bytes.Length == 2)
{
int wantaddr = addrfunc - c.addr;
if (wantaddr < Int16.MinValue || wantaddr > Int16.MaxValue)
{
throw new Exception("addr jump is too far.");
}
Int16 addrconv = (Int16)wantaddr;
c.bytes = BitConverter.GetBytes(addrconv);
}
else
{
throw new Exception("not have right fill bytes");
}
c.needfixfunc = false;
}
}
}
private void ConvertMethod(ILMethod from, NeoMethod to)
{
this.addr = 0;
this.addrconv.Clear();
if (to.isEntry)
{
_insertSharedStaticVarCode(to);
}
//插入一个记录深度的代码，再往前的是参数
_insertBeginCode(from, to);
int skipcount = 0;
foreach (var src in from.body_Codes.Values)
{
if (skipcount > 0)
{
skipcount--;
}
else
{
//在return之前加入清理参数代码
if (src.code == CodeEx.Ret)//before return
{
_insertEndCode(to, src);
}
try
{
skipcount = ConvertCode(from, src, to);
}
catch (Exception err)
{
throw new Exception("error:" + from.method.FullName + "::" + src, err);
}
}
}
ConvertAddrInMethod(to);
}
private readonly Dictionary<int, int> addrconv = new Dictionary<int, int>();
private int addr = 0;
//Dictionary<string, string[]> srccodes = new Dictionary<string, string[]>();
//string getSrcCode(string url, int line)
//{
// if (url == null || url == "") return "";
// if (srccodes.ContainsKey(url) == false)
// {
// srccodes[url] = System.IO.File.ReadAllLines(url);
// }
// if (srccodes.ContainsKey(url) != false)
// {
// var file = srccodes[url];
// if (line > 0 && line <= file.Length)
// {
// return file[line - 1];
// }
// }
// return "";
//}
static int getNumber(NeoCode code)
{
if (code.code <= VM.OpCode.PUSHBYTES75 && code.code >= VM.OpCode.PUSHBYTES1)
return (int)new BigInteger(code.bytes);
else if (code.code == VM.OpCode.PUSH0) return 0;
else if (code.code == VM.OpCode.PUSH1) return 1;
else if (code.code == VM.OpCode.PUSH2) return 2;
else if (code.code == VM.OpCode.PUSH3) return 3;
else if (code.code == VM.OpCode.PUSH4) return 4;
else if (code.code == VM.OpCode.PUSH5) return 5;
else if (code.code == VM.OpCode.PUSH6) return 6;
else if (code.code == VM.OpCode.PUSH7) return 7;
else if (code.code == VM.OpCode.PUSH8) return 8;
else if (code.code == VM.OpCode.PUSH9) return 9;
else if (code.code == VM.OpCode.PUSH10) return 10;
else if (code.code == VM.OpCode.PUSH11) return 11;
else if (code.code == VM.OpCode.PUSH12) return 12;
else if (code.code == VM.OpCode.PUSH13) return 13;
else if (code.code == VM.OpCode.PUSH14) return 14;
else if (code.code == VM.OpCode.PUSH15) return 15;
else if (code.code == VM.OpCode.PUSH16) return 16;
else if (code.code == VM.OpCode.PUSHDATA1) return pushdata1bytes2int(code.bytes);
else
throw new Exception("not support getNumber From this:" + code.ToString());
}
static int pushdata1bytes2int(byte[] data)
{
byte[] target = new byte[4];
for (var i = 1; i < data.Length; i++)
target[i - 1] = data[i];
var n = BitConverter.ToInt32(target, 0);
return n;
}
private void ConvertAddrInMethod(NeoMethod to)
{
foreach (var c in to.body_Codes.Values)
{
if (c.needfix)
{
try
{
var _addr = addrconv[c.srcaddr];
Int16 addroff = (Int16)(_addr - c.addr);
c.bytes = BitConverter.GetBytes(addroff);
c.needfix = false;
}
catch
{
throw new Exception("cannot convert addr in: " + to.name + "\r\n");
}
}
}
}
private int ConvertCode(ILMethod method, OpCode src, NeoMethod to)
{
int skipcount = 0;
switch (src.code)
{
case CodeEx.Nop:
_Convert1by1(VM.OpCode.NOP, src, to);
break;
case CodeEx.Ret:
//return 在外面特殊处理了
_Insert1(VM.OpCode.RET, null, to);
break;
case CodeEx.Pop:
_Convert1by1(VM.OpCode.DROP, src, to);
break;
case CodeEx.Ldnull:
_Convert1by1(VM.OpCode.PUSHNULL, src, to);
break;
case CodeEx.Ldc_I4:
case CodeEx.Ldc_I4_S:
skipcount = _ConvertPushI4WithConv(method, src.tokenI32, src, to);
break;
case CodeEx.Ldc_I4_0:
_ConvertPush(0, src, to);
break;
case CodeEx.Ldc_I4_1:
_ConvertPush(1, src, to);
break;
case CodeEx.Ldc_I4_2:
_ConvertPush(2, src, to);
break;
case CodeEx.Ldc_I4_3:
_ConvertPush(3, src, to);
break;
case CodeEx.Ldc_I4_4:
_ConvertPush(4, src, to);
break;
case CodeEx.Ldc_I4_5:
_ConvertPush(5, src, to);
break;
case CodeEx.Ldc_I4_6:
_ConvertPush(6, src, to);
break;
case CodeEx.Ldc_I4_7:
_ConvertPush(7, src, to);
break;
case CodeEx.Ldc_I4_8:
_ConvertPush(8, src, to);
break;
case CodeEx.Ldc_I4_M1:
skipcount = _ConvertPushI4WithConv(method, -1, src, to);
break;
case CodeEx.Ldc_I8:
skipcount = _ConvertPushI8WithConv(method, src.tokenI64, src, to);
break;
case CodeEx.Ldstr:
_ConvertPush(Encoding.UTF8.GetBytes(src.tokenStr), src, to);
break;
case CodeEx.Stloc_0:
_ConvertStLoc(method, src, to, 0);
break;
case CodeEx.Stloc_1:
_ConvertStLoc(method, src, to, 1);
break;
case CodeEx.Stloc_2:
_ConvertStLoc(method, src, to, 2);
break;
case CodeEx.Stloc_3:
_ConvertStLoc(method, src, to, 3);
break;
case CodeEx.Stloc_S:
_ConvertStLoc(method, src, to, src.tokenI32);
break;
case CodeEx.Ldloc_0:
_ConvertLdLoc(method, src, to, 0);
break;
case CodeEx.Ldloc_1:
_ConvertLdLoc(method, src, to, 1);
break;
case CodeEx.Ldloc_2:
_ConvertLdLoc(method, src, to, 2);
break;
case CodeEx.Ldloc_3:
_ConvertLdLoc(method, src, to, 3);
break;
case CodeEx.Ldloc_S:
_ConvertLdLoc(method, src, to, src.tokenI32);
break;
case CodeEx.Ldarg_0:
_ConvertLdArg(method, src, to, 0);
break;
case CodeEx.Ldarg_1:
_ConvertLdArg(method, src, to, 1);
break;
case CodeEx.Ldarg_2:
_ConvertLdArg(method, src, to, 2);
break;
case CodeEx.Ldarg_3:
_ConvertLdArg(method, src, to, 3);
break;
case CodeEx.Ldarg_S:
case CodeEx.Ldarg:
case CodeEx.Ldarga:
case CodeEx.Ldarga_S:
_ConvertLdArg(method, src, to, src.tokenI32);
break;
case CodeEx.Starg_S:
case CodeEx.Starg:
_ConvertStArg(src, to, src.tokenI32);
break;
//需要地址轉換的情況
case CodeEx.Br:
case CodeEx.Br_S:
case CodeEx.Leave:
case CodeEx.Leave_S:
{
var code = _Convert1by1(VM.OpCode.JMP, src, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Switch:
{
throw new Exception("need neo.VM update.");
//var addrdata = new byte[src.tokenAddr_Switch.Length * 2 + 2];
//var shortaddrcount = (UInt16)src.tokenAddr_Switch.Length;
//var data = BitConverter.GetBytes(shortaddrcount);
//addrdata[0] = data[0];
//addrdata[1] = data[1];
//var code = _Convert1by1(VM.OpCode.SWITCH, src, to, addrdata);
//code.needfix = true;
//code.srcaddrswitch = new int[shortaddrcount];
//for (var i = 0; i < shortaddrcount; i++)
//{
// code.srcaddrswitch[i] = src.tokenAddr_Switch[i];
//}
}
case CodeEx.Brtrue:
case CodeEx.Brtrue_S:
{
var code = _Convert1by1(VM.OpCode.JMPIF, src, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Brfalse:
case CodeEx.Brfalse_S:
{
var code = _Convert1by1(VM.OpCode.JMPIFNOT, src, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Beq:
case CodeEx.Beq_S:
{
_Convert1by1(VM.OpCode.NUMEQUAL, src, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Bne_Un:
case CodeEx.Bne_Un_S:
{
_Convert1by1(VM.OpCode.ABS, src, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.ABS, null, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.NUMNOTEQUAL, null, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Blt:
case CodeEx.Blt_S:
{
_Convert1by1(VM.OpCode.LT, src, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Blt_Un:
case CodeEx.Blt_Un_S:
{
_Convert1by1(VM.OpCode.ABS, src, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.ABS, null, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.LT, null, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Ble:
case CodeEx.Ble_S:
{
_Convert1by1(VM.OpCode.LTE, src, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Ble_Un:
case CodeEx.Ble_Un_S:
{
_Convert1by1(VM.OpCode.ABS, src, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.ABS, null, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.LTE, null, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Bgt:
case CodeEx.Bgt_S:
{
_Convert1by1(VM.OpCode.GT, src, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Bgt_Un:
case CodeEx.Bgt_Un_S:
{
_Convert1by1(VM.OpCode.ABS, src, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.ABS, null, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.GT, null, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Bge:
case CodeEx.Bge_S:
{
_Convert1by1(VM.OpCode.GTE, src, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
case CodeEx.Bge_Un:
case CodeEx.Bge_Un_S:
{
_Convert1by1(VM.OpCode.ABS, src, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.ABS, null, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.GTE, null, to);
var code = _Convert1by1(VM.OpCode.JMPIF, null, to, new byte[] { 0, 0 });
code.needfix = true;
code.srcaddr = src.tokenAddr_Index;
}
break;
//Stack
case CodeEx.Dup:
_Convert1by1(VM.OpCode.DUP, src, to);
break;
//Bitwise logic
case CodeEx.And:
_Convert1by1(VM.OpCode.AND, src, to);
break;
case CodeEx.Or:
_Convert1by1(VM.OpCode.OR, src, to);
break;
case CodeEx.Xor:
_Convert1by1(VM.OpCode.XOR, src, to);
break;
case CodeEx.Not:
_Convert1by1(VM.OpCode.INVERT, src, to);
break;
//math
case CodeEx.Add:
case CodeEx.Add_Ovf:
case CodeEx.Add_Ovf_Un:
_Convert1by1(VM.OpCode.ADD, src, to);
break;
case CodeEx.Sub:
case CodeEx.Sub_Ovf:
case CodeEx.Sub_Ovf_Un:
_Convert1by1(VM.OpCode.SUB, src, to);
break;
case CodeEx.Mul:
case CodeEx.Mul_Ovf:
case CodeEx.Mul_Ovf_Un:
_Convert1by1(VM.OpCode.MUL, src, to);
break;
case CodeEx.Div:
case CodeEx.Div_Un:
_Convert1by1(VM.OpCode.DIV, src, to);
break;
case CodeEx.Rem:
case CodeEx.Rem_Un:
_Convert1by1(VM.OpCode.MOD, src, to);
break;
case CodeEx.Neg:
_Convert1by1(VM.OpCode.NEGATE, src, to);
break;
case CodeEx.Shl:
_Convert1by1(VM.OpCode.SHL, src, to);
break;
case CodeEx.Shr:
case CodeEx.Shr_Un:
_Convert1by1(VM.OpCode.SHR, src, to);
break;
//logic
case CodeEx.Clt:
case CodeEx.Clt_Un:
_Convert1by1(VM.OpCode.LT, src, to);
break;
case CodeEx.Cgt:
case CodeEx.Cgt_Un:
_Convert1by1(VM.OpCode.GT, src, to);
break;
case CodeEx.Ceq:
skipcount = _ConvertCeq(method, src, to);
break;
//call
case CodeEx.Call:
case CodeEx.Callvirt:
_ConvertCall(src, to);
break;
//用上一个参数作为数量，new 一个数组
case CodeEx.Newarr:
skipcount = _ConvertNewArr(method, src, to);
break;
//array
//用意为byte[] 取一部分.....
// en: intent to use byte[] as array.....
case CodeEx.Ldelem_U1:
case CodeEx.Ldelem_I1:
//_ConvertPush(1, src, to);
//_Convert1by1(VM.OpCode.SUBSTR, null, to);
//break;
//now we can use pickitem for byte[]
case CodeEx.Ldelem_Any:
case CodeEx.Ldelem_I:
//case CodeEx.Ldelem_I1:
case CodeEx.Ldelem_I2:
case CodeEx.Ldelem_I4:
case CodeEx.Ldelem_I8:
case CodeEx.Ldelem_R4:
case CodeEx.Ldelem_R8:
case CodeEx.Ldelem_Ref:
case CodeEx.Ldelem_U2:
case CodeEx.Ldelem_U4:
_Convert1by1(VM.OpCode.PICKITEM, src, to);
break;
case CodeEx.Ldlen:
_Convert1by1(VM.OpCode.ARRAYSIZE, src, to);
break;
case CodeEx.Stelem_I1:
{
// WILL TRACE VARIABLE ORIGIN "Z" IN ALTSTACK!
// EXPECTS: source[index] = b; // index and b must be variables! constants will fail!
/*
9 6a DUPFROMALTSTACK
8 5Z PUSHZ
7 c3 PICKITEM
6 6a DUPFROMALTSTACK
5 5Y PUSHY
4 c3 PICKITEM
3 6a DUPFROMALTSTACK
2 5X PUSHX
1 c3 PICKITEM
*/
if ((to.body_Codes[addr - 1].code == VM.OpCode.PICKITEM)
&& (to.body_Codes[addr - 4].code == VM.OpCode.PICKITEM)
&& (to.body_Codes[addr - 7].code == VM.OpCode.PICKITEM)
&& (to.body_Codes[addr - 3].code == VM.OpCode.DUPFROMALTSTACK)
&& (to.body_Codes[addr - 6].code == VM.OpCode.DUPFROMALTSTACK)
&& (to.body_Codes[addr - 9].code == VM.OpCode.DUPFROMALTSTACK)
&& ((to.body_Codes[addr - 2].code >= VM.OpCode.PUSH0) && (to.body_Codes[addr - 2].code <= VM.OpCode.PUSH16))
&& ((to.body_Codes[addr - 5].code >= VM.OpCode.PUSH0) && (to.body_Codes[addr - 5].code <= VM.OpCode.PUSH16))
&& ((to.body_Codes[addr - 8].code >= VM.OpCode.PUSH0) && (to.body_Codes[addr - 8].code <= VM.OpCode.PUSH16))
)
{
// WILL REQUIRE TO PROCESS INFORMATION AND STORE IT AGAIN ON ALTSTACK CORRECT POSITION
VM.OpCode PushZ = to.body_Codes[addr - 8].code;
_Convert1by1(VM.OpCode.PUSH2, null, to);
_Convert1by1(VM.OpCode.PICK, null, to);
_Convert1by1(VM.OpCode.PUSH2, null, to);
_Convert1by1(VM.OpCode.PICK, null, to);
_Convert1by1(VM.OpCode.LEFT, null, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.CAT, null, to);
_Convert1by1(VM.OpCode.ROT, null, to);
_Convert1by1(VM.OpCode.ROT, null, to);
_Convert1by1(VM.OpCode.OVER, null, to);
_Convert1by1(VM.OpCode.ARRAYSIZE, null, to);
_Convert1by1(VM.OpCode.DEC, null, to);
_Convert1by1(VM.OpCode.SWAP, null, to);
_Convert1by1(VM.OpCode.SUB, null, to);
_Convert1by1(VM.OpCode.RIGHT, null, to);
_Convert1by1(VM.OpCode.CAT, null, to);
// FINAL RESULT MUST GO BACK TO POSITION Z ON ALTSTACK
// FINAL STACK:
// 4 get array (dupfromaltstack)
// 3 PushZ
// 2 result
// 1 setitem
_Convert1by1(VM.OpCode.DUPFROMALTSTACK, null, to); // stack: [ array , result , ... ]
_Convert1by1(PushZ, null, to); // stack: [ pushz, array , result , ... ]
_Convert1by1(VM.OpCode.ROT, null, to); // stack: [ result, pushz, array , ... ]
_Convert1by1(VM.OpCode.SETITEM, null, to); // stack: [ result, pushz, array , ... ]
}
else
throw new Exception("neomachine currently supports only variable indexed bytearray attribution, example: byte[] source; int index = 0; byte b = 1; source[index] = b;");
} // end case
break;
case CodeEx.Stelem_Any:
case CodeEx.Stelem_I:
//case CodeEx.Stelem_I1:
case CodeEx.Stelem_I2:
case CodeEx.Stelem_I4:
case CodeEx.Stelem_I8:
case CodeEx.Stelem_R4:
case CodeEx.Stelem_R8:
case CodeEx.Stelem_Ref:
_Convert1by1(VM.OpCode.SETITEM, src, to);
break;
case CodeEx.Isinst://支持处理as 表达式
break;
case CodeEx.Castclass:
_ConvertCastclass(method, src, to);
break;
case CodeEx.Box:
case CodeEx.Unbox:
case CodeEx.Unbox_Any:
case CodeEx.Break:
//也有可能以后利用这个断点调试
case CodeEx.Conv_I:
case CodeEx.Conv_I1:
case CodeEx.Conv_I2:
case CodeEx.Conv_I4:
case CodeEx.Conv_I8:
case CodeEx.Conv_Ovf_I:
case CodeEx.Conv_Ovf_I_Un:
case CodeEx.Conv_Ovf_I1:
case CodeEx.Conv_Ovf_I1_Un:
case CodeEx.Conv_Ovf_I2:
case CodeEx.Conv_Ovf_I2_Un:
case CodeEx.Conv_Ovf_I4:
case CodeEx.Conv_Ovf_I4_Un: