void Write(CustomAttribute ca)
{
if (ca is null)
{
helper.Error("The custom attribute is null");
return;
}
// Check whether it's raw first. If it is, we don't care whether the ctor is
// invalid. Just use the raw data.
if (ca.IsRawBlob)
{
if ((ca.ConstructorArguments is not null && ca.ConstructorArguments.Count > 0) || (ca.NamedArguments is not null && ca.NamedArguments.Count > 0))
{
helper.Error("Raw custom attribute contains arguments and/or named arguments");
}
writer.WriteBytes(ca.RawData);
return;
}
if (ca.Constructor is null)
{
helper.Error("Custom attribute ctor is null");
return;
}
var methodSig = GetMethodSig(ca.Constructor);
if (methodSig is null)
{
helper.Error("Custom attribute ctor's method signature is invalid");
return;
}
if (ca.ConstructorArguments.Count != methodSig.Params.Count)
{
helper.Error("Custom attribute arguments count != method sig arguments count");
}
if (methodSig.ParamsAfterSentinel is not null && methodSig.ParamsAfterSentinel.Count > 0)
{
helper.Error("Custom attribute ctor has parameters after the sentinel");
}
if (ca.NamedArguments.Count > ushort.MaxValue)
{
helper.Error("Custom attribute has too many named arguments");
}
if (ca.Constructor is MemberRef mrCtor && mrCtor.Class is TypeSpec owner && owner.TypeSig is GenericInstSig gis)
{
genericArguments = new GenericArguments();
genericArguments.PushTypeArgs(gis.GenericArguments);
}
writer.WriteUInt16((ushort)1);
int numArgs = Math.Min(methodSig.Params.Count, ca.ConstructorArguments.Count);
for (int i = 0; i < numArgs; i++)
{
WriteValue(FixTypeSig(methodSig.Params[i]), ca.ConstructorArguments[i]);
}
int numNamedArgs = Math.Min((int)ushort.MaxValue, ca.NamedArguments.Count);
writer.WriteUInt16((ushort)numNamedArgs);
for (int i = 0; i < numNamedArgs; i++)
{
Write(ca.NamedArguments[i]);
}
}
void Write(CustomAttribute ca)
{
if (ca == null)
{
helper.Error("The custom attribute is null");
return;
}
// Check whether it's raw first. If it is, we don't care whether the ctor is
// invalid. Just use the raw data.
if (ca.IsRawBlob)
{
if ((ca.ConstructorArguments != null && ca.ConstructorArguments.Count > 0) || (ca.NamedArguments != null && ca.NamedArguments.Count > 0))
{
helper.Error("Raw custom attribute contains arguments and/or named arguments");
}
writer.Write(ca.RawData);
return;
}
if (ca.Constructor == null)
{
helper.Error("Custom attribute ctor is null");
return;
}
var methodSig = GetMethodSig(ca.Constructor);
if (methodSig == null)
{
helper.Error("Custom attribute ctor's method signature is invalid");
return;
}
if (ca.ConstructorArguments.Count != methodSig.Params.Count)
{
helper.Error("Custom attribute arguments count != method sig arguments count");
}
if (methodSig.ParamsAfterSentinel != null && methodSig.ParamsAfterSentinel.Count > 0)
{
helper.Error("Custom attribute ctor has parameters after the sentinel");
}
if (ca.NamedArguments.Count > ushort.MaxValue)
{
helper.Error("Custom attribute has too many named arguments");
}
// A generic custom attribute isn't allowed by most .NET languages (eg. C#) but
// the CLR probably supports it.
var mrCtor = ca.Constructor as MemberRef;
if (mrCtor != null)
{
var owner = mrCtor.Class as TypeSpec;
if (owner != null)
{
var gis = owner.TypeSig as GenericInstSig;
if (gis != null)
{
genericArguments = new GenericArguments();
genericArguments.PushTypeArgs(gis.GenericArguments);
}
}
}
writer.Write((ushort)1);
int numArgs = Math.Min(methodSig.Params.Count, ca.ConstructorArguments.Count);
for (int i = 0; i < numArgs; i++)
{
WriteValue(FixTypeSig(methodSig.Params[i]), ca.ConstructorArguments[i]);
}
int numNamedArgs = Math.Min((int)ushort.MaxValue, ca.NamedArguments.Count);
writer.Write((ushort)numNamedArgs);
for (int i = 0; i < numNamedArgs; i++)
{
Write(ca.NamedArguments[i]);
}
}