//
// Main routine to resolve a typeDef/Ref/Spec.
//
internal static RuntimeType Resolve(this ReflectionDomain reflectionDomain, MetadataReader reader, Handle typeDefRefOrSpec, TypeContext typeContext)
{
Exception exception = null;
RuntimeType runtimeType = reflectionDomain.TryResolve(reader, typeDefRefOrSpec, typeContext, ref exception);
if (runtimeType == null)
{
throw exception;
}
return(runtimeType);
}
//
// This is a port of the desktop CLR's RuntimeType.FormatTypeName() routine. This routine is used by various Reflection ToString() methods
// to display the name of a type. Do not use for any other purpose as it inherits some pretty quirky desktop behavior.
//
// The Project N version takes a raw metadata handle rather than a completed type so that it remains robust in the face of missing metadata.
//
public static String FormatTypeName(this Handle typeDefRefOrSpecHandle, MetadataReader reader, TypeContext typeContext, ReflectionDomain reflectionDomain)
{
try
{
// Though we wrap this in a try-catch as a failsafe, this code must still strive to avoid triggering MissingMetadata exceptions
// (non-error exceptions are very annoying when debugging.)
Exception exception = null;
RuntimeType runtimeType = reflectionDomain.TryResolve(reader, typeDefRefOrSpecHandle, typeContext, ref exception);
if (runtimeType == null)
return UnavailableType;
// Because this runtimeType came from a successful TryResolve() call, it is safe to querying the TypeInfo's of the type and its component parts.
// If we're wrong, we do have the safety net of a try-catch.
return runtimeType.FormatTypeName();
}
catch (Exception)
{
return UnavailableType;
}
}
//
// This is a port of the desktop CLR's RuntimeType.FormatTypeName() routine. This routine is used by various Reflection ToString() methods
// to display the name of a type. Do not use for any other purpose as it inherits some pretty quirky desktop behavior.
//
// The Project N version takes a raw metadata handle rather than a completed type so that it remains robust in the face of missing metadata.
//
public static String FormatTypeName(this Handle typeDefRefOrSpecHandle, MetadataReader reader, TypeContext typeContext, ReflectionDomain reflectionDomain)
{
try
{
// Though we wrap this in a try-catch as a failsafe, this code must still strive to avoid triggering MissingMetadata exceptions
// (non-error exceptions are very annoying when debugging.)
Exception exception = null;
RuntimeType runtimeType = reflectionDomain.TryResolve(reader, typeDefRefOrSpecHandle, typeContext, ref exception);
if (runtimeType == null)
{
return(UnavailableType);
}
// Because this runtimeType came from a successful TryResolve() call, it is safe to querying the TypeInfo's of the type and its component parts.
// If we're wrong, we do have the safety net of a try-catch.
return(runtimeType.FormatTypeName());
}
catch (Exception)
{
return(UnavailableType);
}
}
public static Exception TryParseConstantValue(this Handle handle, ReflectionDomain reflectionDomain, MetadataReader reader, out Object value)
{
HandleType handleType = handle.HandleType;
switch (handleType)
{
case HandleType.ConstantBooleanValue:
value = handle.ToConstantBooleanValueHandle(reader).GetConstantBooleanValue(reader).Value;
return(null);
case HandleType.ConstantStringValue:
value = handle.ToConstantStringValueHandle(reader).GetConstantStringValue(reader).Value;
return(null);
case HandleType.ConstantCharValue:
value = handle.ToConstantCharValueHandle(reader).GetConstantCharValue(reader).Value;
return(null);
case HandleType.ConstantByteValue:
value = handle.ToConstantByteValueHandle(reader).GetConstantByteValue(reader).Value;
return(null);
case HandleType.ConstantSByteValue:
value = handle.ToConstantSByteValueHandle(reader).GetConstantSByteValue(reader).Value;
return(null);
case HandleType.ConstantInt16Value:
value = handle.ToConstantInt16ValueHandle(reader).GetConstantInt16Value(reader).Value;
return(null);
case HandleType.ConstantUInt16Value:
value = handle.ToConstantUInt16ValueHandle(reader).GetConstantUInt16Value(reader).Value;
return(null);
case HandleType.ConstantInt32Value:
value = handle.ToConstantInt32ValueHandle(reader).GetConstantInt32Value(reader).Value;
return(null);
case HandleType.ConstantUInt32Value:
value = handle.ToConstantUInt32ValueHandle(reader).GetConstantUInt32Value(reader).Value;
return(null);
case HandleType.ConstantInt64Value:
value = handle.ToConstantInt64ValueHandle(reader).GetConstantInt64Value(reader).Value;
return(null);
case HandleType.ConstantUInt64Value:
value = handle.ToConstantUInt64ValueHandle(reader).GetConstantUInt64Value(reader).Value;
return(null);
case HandleType.ConstantSingleValue:
value = handle.ToConstantSingleValueHandle(reader).GetConstantSingleValue(reader).Value;
return(null);
case HandleType.ConstantDoubleValue:
value = handle.ToConstantDoubleValueHandle(reader).GetConstantDoubleValue(reader).Value;
return(null);
case HandleType.TypeDefinition:
case HandleType.TypeReference:
case HandleType.TypeSpecification:
{
Exception exception = null;
value = reflectionDomain.TryResolve(reader, handle, new TypeContext(null, null), ref exception);
return((value == null) ? exception : null);
}
case HandleType.ConstantReferenceValue:
value = null;
return(null);
case HandleType.ConstantBoxedEnumValue:
{
return(handle.ToConstantBoxedEnumValueHandle(reader).ParseBoxedEnumConstantValue(reflectionDomain, reader, out value));
}
default:
{
Exception exception;
value = handle.TryParseConstantArray(reflectionDomain, reader, out exception);
if (value == null)
{
return(exception);
}
return(null);
}
}
}
private static Exception ParseBoxedEnumConstantValue(this ConstantBoxedEnumValueHandle handle, ReflectionDomain reflectionDomain, MetadataReader reader, out Object value)
{
if (!(reflectionDomain is Internal.Reflection.Core.Execution.ExecutionDomain))
{
throw new PlatformNotSupportedException(); // Cannot work because boxing enums won't work in non-execution domains.
}
ConstantBoxedEnumValue record = handle.GetConstantBoxedEnumValue(reader);
Exception exception = null;
Type enumType = reflectionDomain.TryResolve(reader, record.Type, new TypeContext(null, null), ref exception);
if (enumType == null)
{
value = null;
return(exception);
}
if (!enumType.GetTypeInfo().IsEnum)
{
throw new BadImageFormatException();
}
Type underlyingType = Enum.GetUnderlyingType(enumType);
// Now box the value as the specified enum type.
unsafe
{
switch (record.Value.HandleType)
{
case HandleType.ConstantByteValue:
{
if (underlyingType != typeof(byte))
{
throw new BadImageFormatException();
}
byte v = record.Value.ToConstantByteValueHandle(reader).GetConstantByteValue(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return(null);
}
case HandleType.ConstantSByteValue:
{
if (underlyingType != typeof(sbyte))
{
throw new BadImageFormatException();
}
sbyte v = record.Value.ToConstantSByteValueHandle(reader).GetConstantSByteValue(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return(null);
}
case HandleType.ConstantInt16Value:
{
if (underlyingType != typeof(short))
{
throw new BadImageFormatException();
}
short v = record.Value.ToConstantInt16ValueHandle(reader).GetConstantInt16Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return(null);
}
case HandleType.ConstantUInt16Value:
{
if (underlyingType != typeof(ushort))
{
throw new BadImageFormatException();
}
ushort v = record.Value.ToConstantUInt16ValueHandle(reader).GetConstantUInt16Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return(null);
}
case HandleType.ConstantInt32Value:
{
if (underlyingType != typeof(int))
{
throw new BadImageFormatException();
}
int v = record.Value.ToConstantInt32ValueHandle(reader).GetConstantInt32Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return(null);
}
case HandleType.ConstantUInt32Value:
{
if (underlyingType != typeof(uint))
{
throw new BadImageFormatException();
}
uint v = record.Value.ToConstantUInt32ValueHandle(reader).GetConstantUInt32Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return(null);
}
case HandleType.ConstantInt64Value:
{
if (underlyingType != typeof(long))
{
throw new BadImageFormatException();
}
long v = record.Value.ToConstantInt64ValueHandle(reader).GetConstantInt64Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return(null);
}
case HandleType.ConstantUInt64Value:
{
if (underlyingType != typeof(ulong))
{
throw new BadImageFormatException();
}
ulong v = record.Value.ToConstantUInt64ValueHandle(reader).GetConstantUInt64Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return(null);
}
default:
throw new BadImageFormatException();
}
}
}
//
// Main routine to parse a metadata type specification signature.
//
private static RuntimeType TryResolveTypeSignature(this ReflectionDomain reflectionDomain, MetadataReader reader, TypeSpecificationHandle typeSpecHandle, TypeContext typeContext, ref Exception exception)
{
Handle typeHandle = typeSpecHandle.GetTypeSpecification(reader).Signature;
switch (typeHandle.HandleType)
{
case HandleType.ArraySignature:
{
ArraySignature sig = typeHandle.ToArraySignatureHandle(reader).GetArraySignature(reader);
int rank = sig.Rank;
if (rank <= 0)
{
throw new BadImageFormatException(); // Bad rank.
}
RuntimeType elementType = reflectionDomain.TryResolve(reader, sig.ElementType, typeContext, ref exception);
if (elementType == null)
{
return(null);
}
return(ReflectionCoreNonPortable.GetMultiDimArrayType(elementType, rank));
}
case HandleType.ByReferenceSignature:
{
ByReferenceSignature sig = typeHandle.ToByReferenceSignatureHandle(reader).GetByReferenceSignature(reader);
RuntimeType targetType = reflectionDomain.TryResolve(reader, sig.Type, typeContext, ref exception);
if (targetType == null)
{
return(null);
}
return(ReflectionCoreNonPortable.GetByRefType(targetType));
}
case HandleType.MethodTypeVariableSignature:
{
MethodTypeVariableSignature sig = typeHandle.ToMethodTypeVariableSignatureHandle(reader).GetMethodTypeVariableSignature(reader);
return(typeContext.GenericMethodArguments[sig.Number]);
}
case HandleType.PointerSignature:
{
PointerSignature sig = typeHandle.ToPointerSignatureHandle(reader).GetPointerSignature(reader);
RuntimeType targetType = reflectionDomain.TryResolve(reader, sig.Type, typeContext, ref exception);
if (targetType == null)
{
return(null);
}
return(ReflectionCoreNonPortable.GetPointerType(targetType));
}
case HandleType.SZArraySignature:
{
SZArraySignature sig = typeHandle.ToSZArraySignatureHandle(reader).GetSZArraySignature(reader);
RuntimeType elementType = reflectionDomain.TryResolve(reader, sig.ElementType, typeContext, ref exception);
if (elementType == null)
{
return(null);
}
return(ReflectionCoreNonPortable.GetArrayType(elementType));
}
case HandleType.TypeDefinition:
{
return(reflectionDomain.ResolveTypeDefinition(reader, typeHandle.ToTypeDefinitionHandle(reader)));
}
case HandleType.TypeInstantiationSignature:
{
TypeInstantiationSignature sig = typeHandle.ToTypeInstantiationSignatureHandle(reader).GetTypeInstantiationSignature(reader);
RuntimeType genericTypeDefinition = reflectionDomain.TryResolve(reader, sig.GenericType, typeContext, ref exception);
if (genericTypeDefinition == null)
{
return(null);
}
LowLevelList <RuntimeType> genericTypeArguments = new LowLevelList <RuntimeType>();
foreach (Handle genericTypeArgumentHandle in sig.GenericTypeArguments)
{
RuntimeType genericTypeArgument = reflectionDomain.TryResolve(reader, genericTypeArgumentHandle, typeContext, ref exception);
if (genericTypeArgument == null)
{
return(null);
}
genericTypeArguments.Add(genericTypeArgument);
}
return(ReflectionCoreNonPortable.GetConstructedGenericType(genericTypeDefinition, genericTypeArguments.ToArray()));
}
case HandleType.TypeReference:
{
return(reflectionDomain.TryResolveTypeReference(reader, typeHandle.ToTypeReferenceHandle(reader), ref exception));
}
case HandleType.TypeVariableSignature:
{
TypeVariableSignature sig = typeHandle.ToTypeVariableSignatureHandle(reader).GetTypeVariableSignature(reader);
return(typeContext.GenericTypeArguments[sig.Number]);
}
default:
throw new NotSupportedException(); // Unexpected Type signature type.
}
}
public static Exception TryParseConstantValue(this Handle handle, ReflectionDomain reflectionDomain, MetadataReader reader, out Object value)
{
HandleType handleType = handle.HandleType;
switch (handleType)
{
case HandleType.ConstantBooleanValue:
value = handle.ToConstantBooleanValueHandle(reader).GetConstantBooleanValue(reader).Value;
return null;
case HandleType.ConstantStringValue:
value = handle.ToConstantStringValueHandle(reader).GetConstantStringValue(reader).Value;
return null;
case HandleType.ConstantCharValue:
value = handle.ToConstantCharValueHandle(reader).GetConstantCharValue(reader).Value;
return null;
case HandleType.ConstantByteValue:
value = handle.ToConstantByteValueHandle(reader).GetConstantByteValue(reader).Value;
return null;
case HandleType.ConstantSByteValue:
value = handle.ToConstantSByteValueHandle(reader).GetConstantSByteValue(reader).Value;
return null;
case HandleType.ConstantInt16Value:
value = handle.ToConstantInt16ValueHandle(reader).GetConstantInt16Value(reader).Value;
return null;
case HandleType.ConstantUInt16Value:
value = handle.ToConstantUInt16ValueHandle(reader).GetConstantUInt16Value(reader).Value;
return null;
case HandleType.ConstantInt32Value:
value = handle.ToConstantInt32ValueHandle(reader).GetConstantInt32Value(reader).Value;
return null;
case HandleType.ConstantUInt32Value:
value = handle.ToConstantUInt32ValueHandle(reader).GetConstantUInt32Value(reader).Value;
return null;
case HandleType.ConstantInt64Value:
value = handle.ToConstantInt64ValueHandle(reader).GetConstantInt64Value(reader).Value;
return null;
case HandleType.ConstantUInt64Value:
value = handle.ToConstantUInt64ValueHandle(reader).GetConstantUInt64Value(reader).Value;
return null;
case HandleType.ConstantSingleValue:
value = handle.ToConstantSingleValueHandle(reader).GetConstantSingleValue(reader).Value;
return null;
case HandleType.ConstantDoubleValue:
value = handle.ToConstantDoubleValueHandle(reader).GetConstantDoubleValue(reader).Value;
return null;
case HandleType.TypeDefinition:
case HandleType.TypeReference:
case HandleType.TypeSpecification:
{
Exception exception = null;
value = reflectionDomain.TryResolve(reader, handle, new TypeContext(null, null), ref exception);
return (value == null) ? exception : null;
}
case HandleType.ConstantReferenceValue:
value = null;
return null;
case HandleType.ConstantBoxedEnumValue:
{
return handle.ToConstantBoxedEnumValueHandle(reader).ParseBoxedEnumConstantValue(reflectionDomain, reader, out value);
}
default:
{
Exception exception;
value = handle.TryParseConstantArray(reflectionDomain, reader, out exception);
if (value == null)
return exception;
return null;
}
}
}
private static Exception ParseBoxedEnumConstantValue(this ConstantBoxedEnumValueHandle handle, ReflectionDomain reflectionDomain, MetadataReader reader, out Object value)
{
if (!(reflectionDomain is Internal.Reflection.Core.Execution.ExecutionDomain))
throw new PlatformNotSupportedException(); // Cannot work because boxing enums won't work in non-execution domains.
ConstantBoxedEnumValue record = handle.GetConstantBoxedEnumValue(reader);
Exception exception = null;
Type enumType = reflectionDomain.TryResolve(reader, record.Type, new TypeContext(null, null), ref exception);
if (enumType == null)
{
value = null;
return exception;
}
if (!enumType.GetTypeInfo().IsEnum)
throw new BadImageFormatException();
Type underlyingType = Enum.GetUnderlyingType(enumType);
// Now box the value as the specified enum type.
unsafe
{
switch (record.Value.HandleType)
{
case HandleType.ConstantByteValue:
{
if (underlyingType != typeof(byte))
throw new BadImageFormatException();
byte v = record.Value.ToConstantByteValueHandle(reader).GetConstantByteValue(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return null;
}
case HandleType.ConstantSByteValue:
{
if (underlyingType != typeof(sbyte))
throw new BadImageFormatException();
sbyte v = record.Value.ToConstantSByteValueHandle(reader).GetConstantSByteValue(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return null;
}
case HandleType.ConstantInt16Value:
{
if (underlyingType != typeof(short))
throw new BadImageFormatException();
short v = record.Value.ToConstantInt16ValueHandle(reader).GetConstantInt16Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return null;
}
case HandleType.ConstantUInt16Value:
{
if (underlyingType != typeof(ushort))
throw new BadImageFormatException();
ushort v = record.Value.ToConstantUInt16ValueHandle(reader).GetConstantUInt16Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return null;
}
case HandleType.ConstantInt32Value:
{
if (underlyingType != typeof(int))
throw new BadImageFormatException();
int v = record.Value.ToConstantInt32ValueHandle(reader).GetConstantInt32Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return null;
}
case HandleType.ConstantUInt32Value:
{
if (underlyingType != typeof(uint))
throw new BadImageFormatException();
uint v = record.Value.ToConstantUInt32ValueHandle(reader).GetConstantUInt32Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return null;
}
case HandleType.ConstantInt64Value:
{
if (underlyingType != typeof(long))
throw new BadImageFormatException();
long v = record.Value.ToConstantInt64ValueHandle(reader).GetConstantInt64Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return null;
}
case HandleType.ConstantUInt64Value:
{
if (underlyingType != typeof(ulong))
throw new BadImageFormatException();
ulong v = record.Value.ToConstantUInt64ValueHandle(reader).GetConstantUInt64Value(reader).Value;
value = RuntimeAugments.Box(enumType.TypeHandle, (IntPtr)(&v));
return null;
}
default:
throw new BadImageFormatException();
}
}
}
