private void SetStructLayoutPseudoCustomAttribute(CustomAttributeBuilder customBuilder)
{
object val = customBuilder.GetConstructorArgument(0);
LayoutKind layout;
if (val is short)
{
layout = (LayoutKind)(short)val;
}
else
{
layout = (LayoutKind)val;
}
pack = (short)((int?)customBuilder.GetFieldValue("Pack") ?? 0);
size = (int?)customBuilder.GetFieldValue("Size") ?? 0;
CharSet charSet = customBuilder.GetFieldValue <CharSet>("CharSet") ?? (CharSet)1; // CharSet.None
attribs &= ~TypeAttributes.LayoutMask;
switch (layout)
{
case LayoutKind.Auto:
attribs |= TypeAttributes.AutoLayout;
break;
case LayoutKind.Explicit:
attribs |= TypeAttributes.ExplicitLayout;
break;
case LayoutKind.Sequential:
attribs |= TypeAttributes.SequentialLayout;
break;
}
attribs &= ~TypeAttributes.StringFormatMask;
switch (charSet)
{
case (CharSet)1: // CharSet.None
case CharSet.Ansi:
attribs |= TypeAttributes.AnsiClass;
break;
case (CharSet)4: // CharSet.Auto
attribs |= TypeAttributes.AutoClass;
break;
case CharSet.Unicode:
attribs |= TypeAttributes.UnicodeClass;
break;
}
hasLayout = pack != 0 || size != 0;
}
private void SetDllImportPseudoCustomAttribute(CustomAttributeBuilder customBuilder)
{
CallingConvention?callingConvention = customBuilder.GetFieldValue <CallingConvention>("CallingConvention");
CharSet? charSet = customBuilder.GetFieldValue <CharSet>("CharSet");
SetDllImportPseudoCustomAttribute((string)customBuilder.GetConstructorArgument(0),
(string)customBuilder.GetFieldValue("EntryPoint"),
callingConvention,
charSet,
(bool?)customBuilder.GetFieldValue("BestFitMapping"),
(bool?)customBuilder.GetFieldValue("ThrowOnUnmappableChar"),
(bool?)customBuilder.GetFieldValue("SetLastError"),
(bool?)customBuilder.GetFieldValue("PreserveSig"),
(bool?)customBuilder.GetFieldValue("ExactSpelling"));
}
private void SetMethodImplAttribute(CustomAttributeBuilder customBuilder)
{
MethodImplOptions opt;
switch (customBuilder.Constructor.ParameterCount)
{
case 0:
opt = 0;
break;
case 1:
{
object val = customBuilder.GetConstructorArgument(0);
if (val is short)
{
opt = (MethodImplOptions)(short)val;
}
else if (val is int)
{
opt = (MethodImplOptions)(int)val;
}
else
{
opt = (MethodImplOptions)val;
}
break;
}
default:
throw new NotSupportedException();
}
implFlags = (MethodImplAttributes)opt;
object type = customBuilder.GetFieldValue("MethodCodeType");
if (type != null)
{
implFlags |= (MethodImplAttributes)(int)type;
}
}
