internal static MethodSignature ReadSig(ModuleReader module, ByteReader br, IGenericContext context)
{
CallingConventions callingConvention;
int genericParamCount;
Type returnType;
Type[] parameterTypes;
byte flags = br.ReadByte();
switch (flags & 7)
{
case DEFAULT:
callingConvention = CallingConventions.Standard;
break;
case VARARG:
callingConvention = CallingConventions.VarArgs;
break;
default:
throw new BadImageFormatException();
}
if ((flags & HASTHIS) != 0)
{
callingConvention |= CallingConventions.HasThis;
}
if ((flags & EXPLICITTHIS) != 0)
{
callingConvention |= CallingConventions.ExplicitThis;
}
genericParamCount = 0;
if ((flags & GENERIC) != 0)
{
genericParamCount = br.ReadCompressedInt();
context = new UnboundGenericMethodContext(context);
}
int paramCount = br.ReadCompressedInt();
CustomModifiers[] modifiers = null;
PackedCustomModifiers.Pack(ref modifiers, 0, CustomModifiers.Read(module, br, context), paramCount + 1);
returnType = ReadRetType(module, br, context);
parameterTypes = new Type[paramCount];
for (int i = 0; i < parameterTypes.Length; i++)
{
if ((callingConvention & CallingConventions.VarArgs) != 0 && br.PeekByte() == SENTINEL)
{
Array.Resize(ref parameterTypes, i);
if (modifiers != null)
{
Array.Resize(ref modifiers, i + 1);
}
break;
}
PackedCustomModifiers.Pack(ref modifiers, i + 1, CustomModifiers.Read(module, br, context), paramCount + 1);
parameterTypes[i] = ReadParam(module, br, context);
}
return(new MethodSignature(returnType, parameterTypes, PackedCustomModifiers.Wrap(modifiers), callingConvention, genericParamCount));
}
internal static PropertySignature ReadSig(ModuleReader module, ByteReader br, IGenericContext context)
{
byte flags = br.ReadByte();
if ((flags & PROPERTY) == 0)
{
throw new BadImageFormatException();
}
CallingConventions callingConvention = CallingConventions.Standard;
if ((flags & HASTHIS) != 0)
{
callingConvention |= CallingConventions.HasThis;
}
if ((flags & EXPLICITTHIS) != 0)
{
callingConvention |= CallingConventions.ExplicitThis;
}
Type returnType;
Type[] parameterTypes;
int paramCount = br.ReadCompressedInt();
CustomModifiers[] mods = null;
PackedCustomModifiers.Pack(ref mods, 0, CustomModifiers.Read(module, br, context), paramCount + 1);
returnType = ReadRetType(module, br, context);
parameterTypes = new Type[paramCount];
for (int i = 0; i < parameterTypes.Length; i++)
{
PackedCustomModifiers.Pack(ref mods, i + 1, CustomModifiers.Read(module, br, context), paramCount + 1);
parameterTypes[i] = ReadParam(module, br, context);
}
return(new PropertySignature(callingConvention, returnType, parameterTypes, PackedCustomModifiers.Wrap(mods)));
}
internal static __StandAloneMethodSig ReadStandAloneMethodSig(ModuleReader module, ByteReader br, IGenericContext context)
{
CallingConventions callingConvention = 0;
System.Runtime.InteropServices.CallingConvention unmanagedCallingConvention = 0;
bool unmanaged;
byte flags = br.ReadByte();
switch (flags & 7)
{
case DEFAULT:
callingConvention = CallingConventions.Standard;
unmanaged = false;
break;
case 0x01: // C
unmanagedCallingConvention = System.Runtime.InteropServices.CallingConvention.Cdecl;
unmanaged = true;
break;
case 0x02: // STDCALL
unmanagedCallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall;
unmanaged = true;
break;
case 0x03: // THISCALL
unmanagedCallingConvention = System.Runtime.InteropServices.CallingConvention.ThisCall;
unmanaged = true;
break;
case 0x04: // FASTCALL
unmanagedCallingConvention = System.Runtime.InteropServices.CallingConvention.FastCall;
unmanaged = true;
break;
case VARARG:
callingConvention = CallingConventions.VarArgs;
unmanaged = false;
break;
default:
throw new BadImageFormatException();
}
if ((flags & HASTHIS) != 0)
{
callingConvention |= CallingConventions.HasThis;
}
if ((flags & EXPLICITTHIS) != 0)
{
callingConvention |= CallingConventions.ExplicitThis;
}
if ((flags & GENERIC) != 0)
{
throw new BadImageFormatException();
}
int paramCount = br.ReadCompressedInt();
CustomModifiers[] customModifiers = null;
PackedCustomModifiers.Pack(ref customModifiers, 0, CustomModifiers.Read(module, br, context), paramCount + 1);
Type returnType = ReadRetType(module, br, context);
List <Type> parameterTypes = new List <Type>();
List <Type> optionalParameterTypes = new List <Type>();
List <Type> curr = parameterTypes;
for (int i = 0; i < paramCount; i++)
{
if (br.PeekByte() == SENTINEL)
{
br.ReadByte();
curr = optionalParameterTypes;
}
PackedCustomModifiers.Pack(ref customModifiers, i + 1, CustomModifiers.Read(module, br, context), paramCount + 1);
curr.Add(ReadParam(module, br, context));
}
return(new __StandAloneMethodSig(unmanaged, unmanagedCallingConvention, callingConvention, returnType, parameterTypes.ToArray(), optionalParameterTypes.ToArray(), PackedCustomModifiers.Wrap(customModifiers)));
}