internal void SetDllImportPseudoCustomAttribute(string dllName, string entryName, CallingConvention? nativeCallConv, CharSet? nativeCharSet,
bool? bestFitMapping, bool? throwOnUnmappableChar, bool? setLastError, bool? preserveSig, bool? exactSpelling)
{
const short NoMangle = 0x0001;
const short CharSetMask = 0x0006;
const short CharSetNotSpec = 0x0000;
const short CharSetAnsi = 0x0002;
const short CharSetUnicode = 0x0004;
const short CharSetAuto = 0x0006;
const short SupportsLastError = 0x0040;
const short CallConvMask = 0x0700;
const short CallConvWinapi = 0x0100;
const short CallConvCdecl = 0x0200;
const short CallConvStdcall = 0x0300;
const short CallConvThiscall = 0x0400;
const short CallConvFastcall = 0x0500;
// non-standard flags
const short BestFitOn = 0x0010;
const short BestFitOff = 0x0020;
const short CharMapErrorOn = 0x1000;
const short CharMapErrorOff = 0x2000;
short flags = CharSetNotSpec | CallConvWinapi;
if (bestFitMapping.HasValue)
{
flags |= bestFitMapping.Value ? BestFitOn : BestFitOff;
}
if (throwOnUnmappableChar.HasValue)
{
flags |= throwOnUnmappableChar.Value ? CharMapErrorOn : CharMapErrorOff;
}
if (nativeCallConv.HasValue)
{
flags &= ~CallConvMask;
switch (nativeCallConv.Value)
{
case System.Runtime.InteropServices.CallingConvention.Cdecl:
flags |= CallConvCdecl;
break;
case System.Runtime.InteropServices.CallingConvention.FastCall:
flags |= CallConvFastcall;
break;
case System.Runtime.InteropServices.CallingConvention.StdCall:
flags |= CallConvStdcall;
break;
case System.Runtime.InteropServices.CallingConvention.ThisCall:
flags |= CallConvThiscall;
break;
case System.Runtime.InteropServices.CallingConvention.Winapi:
flags |= CallConvWinapi;
break;
}
}
if (nativeCharSet.HasValue)
{
flags &= ~CharSetMask;
switch (nativeCharSet.Value)
{
case CharSet.Ansi:
case CharSet.None:
flags |= CharSetAnsi;
break;
case CharSet.Auto:
flags |= CharSetAuto;
break;
case CharSet.Unicode:
flags |= CharSetUnicode;
break;
}
}
if (exactSpelling.HasValue && exactSpelling.Value)
{
flags |= NoMangle;
}
if (!preserveSig.HasValue || preserveSig.Value)
{
implFlags |= MethodImplAttributes.PreserveSig;
}
if (setLastError.HasValue && setLastError.Value)
{
flags |= SupportsLastError;
}
ImplMapTable.Record rec = new ImplMapTable.Record();
rec.MappingFlags = flags;
rec.MemberForwarded = pseudoToken;
rec.ImportName = this.ModuleBuilder.Strings.Add(entryName ?? name);
rec.ImportScope = this.ModuleBuilder.ModuleRef.FindOrAddRecord(dllName == null ? 0 : this.ModuleBuilder.Strings.Add(dllName));
this.ModuleBuilder.ImplMap.AddRecord(rec);
}
internal void SetDllImportPseudoCustomAttribute(string dllName, string entryName, CallingConvention?nativeCallConv, CharSet?nativeCharSet,
bool?bestFitMapping, bool?throwOnUnmappableChar, bool?setLastError, bool?preserveSig, bool?exactSpelling)
{
const short NoMangle = 0x0001;
const short CharSetMask = 0x0006;
const short CharSetNotSpec = 0x0000;
const short CharSetAnsi = 0x0002;
const short CharSetUnicode = 0x0004;
const short CharSetAuto = 0x0006;
const short SupportsLastError = 0x0040;
const short CallConvMask = 0x0700;
const short CallConvWinapi = 0x0100;
const short CallConvCdecl = 0x0200;
const short CallConvStdcall = 0x0300;
const short CallConvThiscall = 0x0400;
const short CallConvFastcall = 0x0500;
// non-standard flags
const short BestFitOn = 0x0010;
const short BestFitOff = 0x0020;
const short CharMapErrorOn = 0x1000;
const short CharMapErrorOff = 0x2000;
short flags = CharSetNotSpec | CallConvWinapi;
if (bestFitMapping.HasValue)
{
flags |= bestFitMapping.Value ? BestFitOn : BestFitOff;
}
if (throwOnUnmappableChar.HasValue)
{
flags |= throwOnUnmappableChar.Value ? CharMapErrorOn : CharMapErrorOff;
}
if (nativeCallConv.HasValue)
{
flags &= ~CallConvMask;
switch (nativeCallConv.Value)
{
case System.Runtime.InteropServices.CallingConvention.Cdecl:
flags |= CallConvCdecl;
break;
case System.Runtime.InteropServices.CallingConvention.FastCall:
flags |= CallConvFastcall;
break;
case System.Runtime.InteropServices.CallingConvention.StdCall:
flags |= CallConvStdcall;
break;
case System.Runtime.InteropServices.CallingConvention.ThisCall:
flags |= CallConvThiscall;
break;
case System.Runtime.InteropServices.CallingConvention.Winapi:
flags |= CallConvWinapi;
break;
}
}
if (nativeCharSet.HasValue)
{
flags &= ~CharSetMask;
switch (nativeCharSet.Value)
{
case CharSet.Ansi:
case CharSet.None:
flags |= CharSetAnsi;
break;
case CharSet.Auto:
flags |= CharSetAuto;
break;
case CharSet.Unicode:
flags |= CharSetUnicode;
break;
}
}
if (exactSpelling.HasValue && exactSpelling.Value)
{
flags |= NoMangle;
}
if (!preserveSig.HasValue || preserveSig.Value)
{
implFlags |= MethodImplAttributes.PreserveSig;
}
if (setLastError.HasValue && setLastError.Value)
{
flags |= SupportsLastError;
}
ImplMapTable.Record rec = new ImplMapTable.Record();
rec.MappingFlags = flags;
rec.MemberForwarded = pseudoToken;
rec.ImportName = this.ModuleBuilder.Strings.Add(entryName ?? name);
rec.ImportScope = this.ModuleBuilder.ModuleRef.FindOrAddRecord(dllName == null ? 0 : this.ModuleBuilder.Strings.Add(dllName));
this.ModuleBuilder.ImplMap.AddRecord(rec);
}