// Create a TypeSystem.MethodSignature object from a RuntimeSignature that isn't a NativeLayoutSignature
private TypeSystem.MethodSignature TypeSystemSigFromRuntimeSignature(TypeSystemContext context, RuntimeSignature signature)
{
Debug.Assert(!signature.IsNativeLayoutSignature);
ModuleInfo module = signature.GetModuleInfo();
#if ECMA_METADATA_SUPPORT
if (module is NativeFormatModuleInfo)
#endif
{
NativeFormatModuleInfo nativeFormatModule = (NativeFormatModuleInfo)module;
var metadataReader = nativeFormatModule.MetadataReader;
var methodHandle = signature.Token.AsHandle().ToMethodHandle(metadataReader);
var metadataUnit = ((TypeLoaderTypeSystemContext)context).ResolveMetadataUnit(nativeFormatModule);
var parser = new Internal.TypeSystem.NativeFormat.NativeFormatSignatureParser(metadataUnit, metadataReader.GetMethod(methodHandle).Signature, metadataReader);
return(parser.ParseMethodSignature());
}
#if ECMA_METADATA_SUPPORT
else
{
EcmaModuleInfo ecmaModuleInfo = (EcmaModuleInfo)module;
TypeSystem.Ecma.EcmaModule ecmaModule = context.ResolveEcmaModule(ecmaModuleInfo);
var ecmaHandle = System.Reflection.Metadata.Ecma335.MetadataTokens.EntityHandle(signature.Token);
MethodDesc ecmaMethod = ecmaModule.GetMethod(ecmaHandle);
return(ecmaMethod.Signature);
}
#endif
}
internal bool GetCallingConverterDataFromMethodSignature_NativeLayout_Common(
TypeSystemContext context,
RuntimeSignature methodSig,
Instantiation typeInstantiation,
Instantiation methodInstantiation,
out bool hasThis,
out TypeDesc[] parameters,
out bool[] parametersWithGenericDependentLayout,
NativeReader nativeReader)
{
NativeLayoutInfoLoadContext nativeLayoutContext = new NativeLayoutInfoLoadContext();
nativeLayoutContext._module = (NativeFormatModuleInfo)methodSig.GetModuleInfo();
nativeLayoutContext._typeSystemContext = context;
nativeLayoutContext._typeArgumentHandles = typeInstantiation;
nativeLayoutContext._methodArgumentHandles = methodInstantiation;
NativeFormatModuleInfo module = ModuleList.Instance.GetModuleInfoByHandle(new TypeManagerHandle(methodSig.ModuleHandle));
NativeReader reader = GetNativeLayoutInfoReader(methodSig);
NativeParser parser = new NativeParser(reader, methodSig.NativeLayoutOffset);
MethodCallingConvention callingConvention = (MethodCallingConvention)parser.GetUnsigned();
hasThis = !callingConvention.HasFlag(MethodCallingConvention.Static);
if (callingConvention.HasFlag(MethodCallingConvention.Generic))
{
parser.SkipInteger(); // numGenArgs
}
uint parameterCount = parser.GetUnsigned();
parameters = new TypeDesc[parameterCount + 1];
parametersWithGenericDependentLayout = new bool[parameterCount + 1];
// One extra parameter to account for the return type
for (uint i = 0; i <= parameterCount; i++)
{
// NativeParser is a struct, so it can be copied.
NativeParser parserCopy = parser;
// Parse the signature twice. The first time to find out the exact type of the signature
// The second time to identify if the parameter loaded via the signature should be forced to be
// passed byref as part of the universal generic calling convention.
parameters[i] = GetConstructedTypeFromParserAndNativeLayoutContext(ref parser, nativeLayoutContext);
parametersWithGenericDependentLayout[i] = TypeSignatureHasVarsNeedingCallingConventionConverter(ref parserCopy, module, context, HasVarsInvestigationLevel.Parameter);
if (parameters[i] == null)
{
return(false);
}
}
return(true);
}
internal bool IsStaticMethodSignature(RuntimeSignature methodSig)
{
if (methodSig.IsNativeLayoutSignature)
{
NativeReader reader = GetNativeLayoutInfoReader(methodSig);
NativeParser parser = new NativeParser(reader, methodSig.NativeLayoutOffset);
MethodCallingConvention callingConvention = (MethodCallingConvention)parser.GetUnsigned();
return(callingConvention.HasFlag(MethodCallingConvention.Static));
}
else
{
ModuleInfo module = methodSig.GetModuleInfo();
#if ECMA_METADATA_SUPPORT
if (module is NativeFormatModuleInfo)
#endif
{
NativeFormatModuleInfo nativeFormatModule = (NativeFormatModuleInfo)module;
var metadataReader = nativeFormatModule.MetadataReader;
var methodHandle = methodSig.Token.AsHandle().ToMethodHandle(metadataReader);
var method = methodHandle.GetMethod(metadataReader);
return((method.Flags & MethodAttributes.Static) != 0);
}
#if ECMA_METADATA_SUPPORT
else
{
EcmaModuleInfo ecmaModuleInfo = (EcmaModuleInfo)module;
var metadataReader = ecmaModuleInfo.MetadataReader;
var ecmaHandle = (System.Reflection.Metadata.MethodDefinitionHandle)System.Reflection.Metadata.Ecma335.MetadataTokens.Handle(methodSig.Token);
var method = metadataReader.GetMethodDefinition(ecmaHandle);
var blobHandle = method.Signature;
var blobReader = metadataReader.GetBlobReader(blobHandle);
byte sigByte = blobReader.ReadByte();
return((sigByte & (byte)System.Reflection.Metadata.SignatureAttributes.Instance) == 0);
}
#endif
}
}
