public void EmitMethodSignature(
MethodDesc method,
TypeDesc constrainedType,
ModuleToken methodToken,
bool enforceDefEncoding,
SignatureContext context,
bool isUnboxingStub,
bool isInstantiatingStub)
{
uint flags = 0;
if (isUnboxingStub)
{
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_UnboxingStub;
}
if (isInstantiatingStub)
{
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_InstantiatingStub;
}
if (constrainedType != null)
{
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_Constrained;
}
if (method.HasInstantiation || method.OwningType.HasInstantiation)
{
EmitMethodSpecificationSignature(method, methodToken, flags, enforceDefEncoding, context);
}
else
{
if (methodToken.IsNull)
{
methodToken = context.GetModuleTokenForMethod(method.GetTypicalMethodDefinition());
}
switch (methodToken.TokenType)
{
case CorTokenType.mdtMethodDef:
// TODO: module override for methoddefs with external module context
EmitUInt(flags);
EmitMethodDefToken(methodToken);
break;
case CorTokenType.mdtMemberRef:
// TODO: module override for methodrefs with external module context
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MemberRefToken;
EmitUInt(flags);
EmitMethodRefToken(methodToken);
break;
default:
throw new NotImplementedException();
}
}
if (constrainedType != null)
{
EmitTypeSignature(constrainedType, context);
}
}
private void EmitMethodSpecificationSignature(MethodWithToken method,
uint flags, bool enforceDefEncoding, SignatureContext context)
{
ModuleToken methodToken = method.Token;
if (method.Method.HasInstantiation)
{
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MethodInstantiation;
if (!method.Token.IsNull)
{
if (method.Token.TokenType == CorTokenType.mdtMethodSpec)
{
MethodSpecification methodSpecification = methodToken.MetadataReader.GetMethodSpecification((MethodSpecificationHandle)methodToken.Handle);
methodToken = new ModuleToken(methodToken.Module, methodSpecification.Method);
}
}
}
if (methodToken.IsNull && !enforceDefEncoding)
{
methodToken = context.GetModuleTokenForMethod(method.Method, throwIfNotFound: false);
}
if (methodToken.IsNull)
{
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_OwnerType;
methodToken = context.GetModuleTokenForMethod(method.Method);
}
if (method.Method.OwningType.HasInstantiation)
{
// resolveToken currently resolves the token in the context of a given scope;
// in such case, we receive a method on instantiated type along with the
// generic definition token.
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_OwnerType;
}
switch (methodToken.TokenType)
{
case CorTokenType.mdtMethodDef:
break;
case CorTokenType.mdtMemberRef:
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MemberRefToken;
break;
default:
throw new NotImplementedException();
}
EmitUInt(flags);
if ((flags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_OwnerType) != 0)
{
EmitTypeSignature(method.Method.OwningType, context);
}
EmitTokenRid(methodToken.Token);
if ((flags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MethodInstantiation) != 0)
{
Instantiation instantiation = method.Method.Instantiation;
EmitUInt((uint)instantiation.Length);
SignatureContext outerContext = context.OuterContext;
for (int typeParamIndex = 0; typeParamIndex < instantiation.Length; typeParamIndex++)
{
EmitTypeSignature(instantiation[typeParamIndex], outerContext);
}
}
}
public void EmitMethodSignature(
MethodDesc method,
TypeDesc constrainedType,
ModuleToken methodToken,
bool enforceDefEncoding,
SignatureContext context,
bool isUnboxingStub,
bool isInstantiatingStub)
{
uint flags = 0;
if (isUnboxingStub)
{
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_UnboxingStub;
}
if (isInstantiatingStub)
{
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_InstantiatingStub;
}
if (constrainedType != null)
{
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_Constrained;
}
if ((method.HasInstantiation || method.OwningType.HasInstantiation) && !method.IsGenericMethodDefinition)
{
EmitMethodSpecificationSignature(method, methodToken, flags, enforceDefEncoding, context);
}
else
{
if (methodToken.IsNull)
{
methodToken = context.GetModuleTokenForMethod(method);
}
switch (methodToken.TokenType)
{
case CorTokenType.mdtMethodDef:
// TODO: module override for methoddefs with external module context
EmitUInt(flags);
EmitMethodDefToken(methodToken);
break;
case CorTokenType.mdtMemberRef:
{
// TODO: module override for methodrefs with external module context
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MemberRefToken;
MemberReference memberRef = methodToken.MetadataReader.GetMemberReference((MemberReferenceHandle)methodToken.Handle);
if (methodToken.Module.GetObject(memberRef.Parent) != (object)method.OwningType)
{
// We have a memberref token for a different type - encode owning type explicitly in the signature
flags |= (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_OwnerType;
}
EmitUInt(flags);
if ((flags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_OwnerType) != 0)
{
EmitTypeSignature(method.OwningType, context);
}
EmitMethodRefToken(methodToken);
}
break;
default:
throw new NotImplementedException();
}
}
if (constrainedType != null)
{
EmitTypeSignature(constrainedType, context);
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
if (relocsOnly)
{
// Method fixup signature doesn't contain any direct relocs
return(new ObjectData(data: Array.Empty <byte>(), relocs: null, alignment: 0, definedSymbols: null));
}
ObjectDataSignatureBuilder dataBuilder = new ObjectDataSignatureBuilder();
dataBuilder.AddSymbol(this);
// Optimize some of the fixups into a more compact form
ReadyToRunFixupKind fixupKind = _fixupKind;
bool optimized = false;
if (!_isUnboxingStub && !_isInstantiatingStub && _method.ConstrainedType == null &&
fixupKind == ReadyToRunFixupKind.MethodEntry)
{
if (!_method.Method.OwningType.HasInstantiation && !_method.Method.OwningType.IsArray)
{
if (_method.Token.TokenType == CorTokenType.mdtMethodDef)
{
fixupKind = ReadyToRunFixupKind.MethodEntry_DefToken;
optimized = true;
}
else if (_method.Token.TokenType == CorTokenType.mdtMemberRef)
{
fixupKind = ReadyToRunFixupKind.MethodEntry_RefToken;
optimized = true;
}
}
}
MethodWithToken method = _method;
if (factory.CompilationModuleGroup.VersionsWithMethodBody(method.Method))
{
if (method.Token.TokenType == CorTokenType.mdtMethodSpec)
{
method = new MethodWithToken(method.Method, _signatureContext.GetModuleTokenForMethod(method.Method, throwIfNotFound: false), method.ConstrainedType);
}
else if (!optimized && (method.Token.TokenType == CorTokenType.mdtMemberRef))
{
if (method.Method.OwningType.GetTypeDefinition() is EcmaType)
{
method = new MethodWithToken(method.Method, _signatureContext.GetModuleTokenForMethod(method.Method, throwIfNotFound: false), method.ConstrainedType);
}
}
}
SignatureContext innerContext = dataBuilder.EmitFixup(factory, fixupKind, method.Token.Module, _signatureContext);
if (optimized && method.Token.TokenType == CorTokenType.mdtMethodDef)
{
dataBuilder.EmitMethodDefToken(method.Token);
}
else if (optimized && method.Token.TokenType == CorTokenType.mdtMemberRef)
{
dataBuilder.EmitMethodRefToken(method.Token);
}
else
{
dataBuilder.EmitMethodSignature(method, enforceDefEncoding: false, enforceOwningType: false, innerContext, _isUnboxingStub, _isInstantiatingStub);
}
return(dataBuilder.ToObjectData());
}