private void EnsureSignatureIsLoaded()
{
if (_lazyType == null)
{
var moduleSymbol = _containingType.ContainingPEModule;
bool isVolatile;
ImmutableArray <ModifierInfo <TypeSymbol> > customModifiers;
TypeSymbol typeSymbol = (new MetadataDecoder(moduleSymbol, _containingType)).DecodeFieldSignature(_handle, out isVolatile, out customModifiers);
ImmutableArray <CustomModifier> customModifiersArray = CSharpCustomModifier.Convert(customModifiers);
typeSymbol = DynamicTypeDecoder.TransformType(typeSymbol, customModifiersArray.Length, _handle, moduleSymbol);
typeSymbol = NativeIntegerTypeDecoder.TransformType(typeSymbol, _handle, moduleSymbol);
// We start without annotations
var type = TypeWithAnnotations.Create(typeSymbol, customModifiers: customModifiersArray);
// Decode nullable before tuple types to avoid converting between
// NamedTypeSymbol and TupleTypeSymbol unnecessarily.
type = NullableTypeDecoder.TransformType(type, _handle, moduleSymbol, accessSymbol: this, nullableContext: _containingType);
type = TupleTypeDecoder.DecodeTupleTypesIfApplicable(type, _handle, moduleSymbol);
_lazyIsVolatile = isVolatile;
TypeSymbol fixedElementType;
int fixedSize;
if (customModifiersArray.IsEmpty && IsFixedBuffer(out fixedSize, out fixedElementType))
{
_lazyFixedSize = fixedSize;
_lazyFixedImplementationType = type.Type as NamedTypeSymbol;
type = TypeWithAnnotations.Create(new PointerTypeSymbol(TypeWithAnnotations.Create(fixedElementType)));
}
Interlocked.CompareExchange(ref _lazyType, new TypeWithAnnotations.Boxed(type), null);
}
}
internal static TypeSymbol TransformType(TypeSymbol type, ImmutableArray <bool> transformFlags)
{
var decoder = new NativeIntegerTypeDecoder(transformFlags);
try
{
var result = decoder.TransformType(type);
if (decoder._index == transformFlags.Length)
{
return(result);
}
else
{
return(new UnsupportedMetadataTypeSymbol());
}
}
catch (UnsupportedSignatureContent)
{
return(new UnsupportedMetadataTypeSymbol());
}
catch (ErrorTypeException)
{
// If we failed to decode because there was an error type involved, marking the
// metadata as unsupported means that we'll cover up the error that would otherwise
// be reported for the type. This would likely lead to a worse error message as we
// would just report a BindToBogus, so return the type unchanged.
Debug.Assert(type.ContainsErrorType());
return(type);
}
}
private void EnsureSignatureIsLoaded()
{
if (_lazyType == null)
{
var moduleSymbol = _containingType.ContainingPEModule;
FieldInfo <TypeSymbol> fieldInfo = new MetadataDecoder(moduleSymbol, _containingType).DecodeFieldSignature(_handle);
TypeSymbol typeSymbol = fieldInfo.Type;
ImmutableArray <CustomModifier> customModifiersArray = CSharpCustomModifier.Convert(fieldInfo.CustomModifiers);
typeSymbol = DynamicTypeDecoder.TransformType(typeSymbol, customModifiersArray.Length, _handle, moduleSymbol);
typeSymbol = NativeIntegerTypeDecoder.TransformType(typeSymbol, _handle, moduleSymbol, _containingType);
// We start without annotations
var type = TypeWithAnnotations.Create(typeSymbol, customModifiers: customModifiersArray);
// Decode nullable before tuple types to avoid converting between
// NamedTypeSymbol and TupleTypeSymbol unnecessarily.
type = NullableTypeDecoder.TransformType(type, _handle, moduleSymbol, accessSymbol: this, nullableContext: _containingType);
type = TupleTypeDecoder.DecodeTupleTypesIfApplicable(type, _handle, moduleSymbol);
RefKind refKind = fieldInfo.IsByRef ?
moduleSymbol.Module.HasIsReadOnlyAttribute(_handle) ? RefKind.RefReadOnly : RefKind.Ref :
RefKind.None;
_packedFlags.SetRefKind(refKind);
_packedFlags.SetIsVolatile(customModifiersArray.Any(static m => !m.IsOptional && ((CSharpCustomModifier)m).ModifierSymbol.SpecialType == SpecialType.System_Runtime_CompilerServices_IsVolatile));
private static TypeSymbol TransformType(TypeSymbol type, ImmutableArray <bool> transformFlags)
{
var decoder = new NativeIntegerTypeDecoder(transformFlags);
try
{
var result = decoder.TransformType(type);
if (decoder._index == transformFlags.Length)
{
return(result);
}
}
catch (ArgumentException)
{
}
return(type);
}
private void EnsureSignatureIsLoaded()
{
if (_lazyType == null)
{
var moduleSymbol = _containingType.ContainingPEModule;
ImmutableArray <ModifierInfo <TypeSymbol> > customModifiers;
TypeSymbol typeSymbol = (new MetadataDecoder(moduleSymbol, _containingType)).DecodeFieldSignature(_handle, out customModifiers);
ImmutableArray <CustomModifier> customModifiersArray = CSharpCustomModifier.Convert(customModifiers);
typeSymbol = DynamicTypeDecoder.TransformType(typeSymbol, customModifiersArray.Length, _handle, moduleSymbol);
typeSymbol = NativeIntegerTypeDecoder.TransformType(typeSymbol, _handle, moduleSymbol, _containingType);
// We start without annotations
var type = TypeWithAnnotations.Create(typeSymbol, customModifiers: customModifiersArray);
// Decode nullable before tuple types to avoid converting between
// NamedTypeSymbol and TupleTypeSymbol unnecessarily.
type = NullableTypeDecoder.TransformType(type, _handle, moduleSymbol, accessSymbol: this, nullableContext: _containingType);
type = TupleTypeDecoder.DecodeTupleTypesIfApplicable(type, _handle, moduleSymbol);
_lazyIsVolatile = customModifiersArray.Any(static m => !m.IsOptional && ((CSharpCustomModifier)m).ModifierSymbol.SpecialType == SpecialType.System_Runtime_CompilerServices_IsVolatile);
private PEPropertySymbol(
PEModuleSymbol moduleSymbol,
PENamedTypeSymbol containingType,
PropertyDefinitionHandle handle,
PEMethodSymbol getMethod,
PEMethodSymbol setMethod,
ParamInfo <TypeSymbol>[] propertyParams,
MetadataDecoder metadataDecoder)
{
_containingType = containingType;
var module = moduleSymbol.Module;
PropertyAttributes mdFlags = 0;
BadImageFormatException mrEx = null;
try
{
module.GetPropertyDefPropsOrThrow(handle, out _name, out mdFlags);
}
catch (BadImageFormatException e)
{
mrEx = e;
if ((object)_name == null)
{
_name = string.Empty;
}
}
_getMethod = getMethod;
_setMethod = setMethod;
_handle = handle;
SignatureHeader unusedCallingConvention;
BadImageFormatException getEx = null;
var getMethodParams = (object)getMethod == null ? null : metadataDecoder.GetSignatureForMethod(getMethod.Handle, out unusedCallingConvention, out getEx);
BadImageFormatException setEx = null;
var setMethodParams = (object)setMethod == null ? null : metadataDecoder.GetSignatureForMethod(setMethod.Handle, out unusedCallingConvention, out setEx);
// NOTE: property parameter names are not recorded in metadata, so we have to
// use the parameter names from one of the indexers
// NB: prefer setter names to getter names if both are present.
bool isBad;
_parameters = setMethodParams is null
? GetParameters(moduleSymbol, this, propertyParams, getMethodParams, getMethod.IsMetadataVirtual(), out isBad)
: GetParameters(moduleSymbol, this, propertyParams, setMethodParams, setMethod.IsMetadataVirtual(), out isBad);
if (getEx != null || setEx != null || mrEx != null || isBad)
{
_lazyUseSiteDiagnostic = new CSDiagnosticInfo(ErrorCode.ERR_BindToBogus, this);
}
var returnInfo = propertyParams[0];
var typeCustomModifiers = CSharpCustomModifier.Convert(returnInfo.CustomModifiers);
if (returnInfo.IsByRef)
{
if (moduleSymbol.Module.HasIsReadOnlyAttribute(handle))
{
_refKind = RefKind.RefReadOnly;
}
else
{
_refKind = RefKind.Ref;
}
}
else
{
_refKind = RefKind.None;
}
// CONSIDER: Can we make parameter type computation lazy?
TypeSymbol originalPropertyType = returnInfo.Type;
originalPropertyType = DynamicTypeDecoder.TransformType(originalPropertyType, typeCustomModifiers.Length, handle, moduleSymbol, _refKind);
originalPropertyType = NativeIntegerTypeDecoder.TransformType(originalPropertyType, handle, moduleSymbol);
// Dynamify object type if necessary
originalPropertyType = originalPropertyType.AsDynamicIfNoPia(_containingType);
// We start without annotation (they will be decoded below)
var propertyTypeWithAnnotations = TypeWithAnnotations.Create(originalPropertyType, customModifiers: typeCustomModifiers);
// Decode nullable before tuple types to avoid converting between
// NamedTypeSymbol and TupleTypeSymbol unnecessarily.
// The containing type is passed to NullableTypeDecoder.TransformType to determine access
// because the property does not have explicit accessibility in metadata.
propertyTypeWithAnnotations = NullableTypeDecoder.TransformType(propertyTypeWithAnnotations, handle, moduleSymbol, accessSymbol: _containingType, nullableContext: _containingType);
propertyTypeWithAnnotations = TupleTypeDecoder.DecodeTupleTypesIfApplicable(propertyTypeWithAnnotations, handle, moduleSymbol);
_propertyTypeWithAnnotations = propertyTypeWithAnnotations;
// A property is bogus and must be accessed by calling its accessors directly if the
// accessor signatures do not agree, both with each other and with the property,
// or if it has parameters and is not an indexer or indexed property.
bool callMethodsDirectly = !DoSignaturesMatch(module, metadataDecoder, propertyParams, _getMethod, getMethodParams, _setMethod, setMethodParams) ||
MustCallMethodsDirectlyCore();
if (!callMethodsDirectly)
{
if ((object)_getMethod != null)
{
_getMethod.SetAssociatedProperty(this, MethodKind.PropertyGet);
}
if ((object)_setMethod != null)
{
_setMethod.SetAssociatedProperty(this, MethodKind.PropertySet);
}
}
if (callMethodsDirectly)
{
_flags |= Flags.CallMethodsDirectly;
}
if ((mdFlags & PropertyAttributes.SpecialName) != 0)
{
_flags |= Flags.IsSpecialName;
}
if ((mdFlags & PropertyAttributes.RTSpecialName) != 0)
{
_flags |= Flags.IsRuntimeSpecialName;
}
}
private PEParameterSymbol(
PEModuleSymbol moduleSymbol,
Symbol containingSymbol,
int ordinal,
bool isByRef,
TypeWithAnnotations typeWithAnnotations,
ParameterHandle handle,
Symbol nullableContext,
int countOfCustomModifiers,
out bool isBad)
{
Debug.Assert((object)moduleSymbol != null);
Debug.Assert((object)containingSymbol != null);
Debug.Assert(ordinal >= 0);
Debug.Assert(typeWithAnnotations.HasType);
isBad = false;
_moduleSymbol = moduleSymbol;
_containingSymbol = containingSymbol;
_ordinal = (ushort)ordinal;
_handle = handle;
RefKind refKind = RefKind.None;
if (handle.IsNil)
{
refKind = isByRef ? RefKind.Ref : RefKind.None;
byte?value = nullableContext.GetNullableContextValue();
if (value.HasValue)
{
typeWithAnnotations = NullableTypeDecoder.TransformType(typeWithAnnotations, value.GetValueOrDefault(), default);
}
_lazyCustomAttributes = ImmutableArray <CSharpAttributeData> .Empty;
_lazyHiddenAttributes = ImmutableArray <CSharpAttributeData> .Empty;
_lazyDefaultValue = ConstantValue.NotAvailable;
_lazyIsParams = ThreeState.False;
}
else
{
try
{
moduleSymbol.Module.GetParamPropsOrThrow(handle, out _name, out _flags);
}
catch (BadImageFormatException)
{
isBad = true;
}
if (isByRef)
{
ParameterAttributes inOutFlags = _flags & (ParameterAttributes.Out | ParameterAttributes.In);
if (inOutFlags == ParameterAttributes.Out)
{
refKind = RefKind.Out;
}
else if (moduleSymbol.Module.HasIsReadOnlyAttribute(handle))
{
refKind = RefKind.In;
}
else
{
refKind = RefKind.Ref;
}
}
var typeSymbol = DynamicTypeDecoder.TransformType(typeWithAnnotations.Type, countOfCustomModifiers, handle, moduleSymbol, refKind);
typeSymbol = NativeIntegerTypeDecoder.TransformType(typeSymbol, handle, moduleSymbol);
typeWithAnnotations = typeWithAnnotations.WithTypeAndModifiers(typeSymbol, typeWithAnnotations.CustomModifiers);
// Decode nullable before tuple types to avoid converting between
// NamedTypeSymbol and TupleTypeSymbol unnecessarily.
// The containing type is passed to NullableTypeDecoder.TransformType to determine access
// for property parameters because the property does not have explicit accessibility in metadata.
var accessSymbol = containingSymbol.Kind == SymbolKind.Property ? containingSymbol.ContainingSymbol : containingSymbol;
typeWithAnnotations = NullableTypeDecoder.TransformType(typeWithAnnotations, handle, moduleSymbol, accessSymbol: accessSymbol, nullableContext: nullableContext);
typeWithAnnotations = TupleTypeDecoder.DecodeTupleTypesIfApplicable(typeWithAnnotations, handle, moduleSymbol);
}
_typeWithAnnotations = typeWithAnnotations;
bool hasNameInMetadata = !string.IsNullOrEmpty(_name);
if (!hasNameInMetadata)
{
// As was done historically, if the parameter doesn't have a name, we give it the name "value".
_name = "value";
}
_packedFlags = new PackedFlags(refKind, attributesAreComplete: handle.IsNil, hasNameInMetadata: hasNameInMetadata);
Debug.Assert(refKind == this.RefKind);
Debug.Assert(hasNameInMetadata == this.HasNameInMetadata);
}
internal PEEventSymbol(
PEModuleSymbol moduleSymbol,
PENamedTypeSymbol containingType,
EventDefinitionHandle handle,
PEMethodSymbol addMethod,
PEMethodSymbol removeMethod,
MultiDictionary <string, PEFieldSymbol> privateFieldNameToSymbols)
{
RoslynDebug.Assert((object)moduleSymbol != null);
RoslynDebug.Assert((object)containingType != null);
Debug.Assert(!handle.IsNil);
RoslynDebug.Assert((object)addMethod != null);
RoslynDebug.Assert((object)removeMethod != null);
_addMethod = addMethod;
_removeMethod = removeMethod;
_handle = handle;
_containingType = containingType;
EventAttributes mdFlags = 0;
EntityHandle eventType = default(EntityHandle);
try
{
var module = moduleSymbol.Module;
module.GetEventDefPropsOrThrow(handle, out _name, out mdFlags, out eventType);
}
catch (BadImageFormatException mrEx)
{
_name = _name ?? string.Empty;
_lazyCachedUseSiteInfo.Initialize(new CSDiagnosticInfo(ErrorCode.ERR_BindToBogus, this));
if (eventType.IsNil)
{
_eventTypeWithAnnotations = TypeWithAnnotations.Create(new UnsupportedMetadataTypeSymbol(mrEx));
}
}
TypeSymbol originalEventType = _eventTypeWithAnnotations.Type;
if (!_eventTypeWithAnnotations.HasType)
{
var metadataDecoder = new MetadataDecoder(moduleSymbol, containingType);
originalEventType = metadataDecoder.GetTypeOfToken(eventType);
const int targetSymbolCustomModifierCount = 0;
var typeSymbol = DynamicTypeDecoder.TransformType(originalEventType, targetSymbolCustomModifierCount, handle, moduleSymbol);
typeSymbol = NativeIntegerTypeDecoder.TransformType(typeSymbol, handle, moduleSymbol, _containingType);
// We start without annotation (they will be decoded below)
var type = TypeWithAnnotations.Create(typeSymbol);
// Decode nullable before tuple types to avoid converting between
// NamedTypeSymbol and TupleTypeSymbol unnecessarily.
// The containing type is passed to NullableTypeDecoder.TransformType to determine access
// because the event does not have explicit accessibility in metadata.
type = NullableTypeDecoder.TransformType(type, handle, moduleSymbol, accessSymbol: _containingType, nullableContext: _containingType);
type = TupleTypeDecoder.DecodeTupleTypesIfApplicable(type, handle, moduleSymbol);
_eventTypeWithAnnotations = type;
}
// IsWindowsRuntimeEvent checks the signatures, so we just have to check the accessors.
bool isWindowsRuntimeEvent = IsWindowsRuntimeEvent;
bool callMethodsDirectly = isWindowsRuntimeEvent
? !DoModifiersMatch(_addMethod, _removeMethod)
: !DoSignaturesMatch(moduleSymbol, originalEventType, _addMethod, _removeMethod);
if (callMethodsDirectly)
{
_flags |= Flags.CallMethodsDirectly;
}
else
{
_addMethod.SetAssociatedEvent(this, MethodKind.EventAdd);
_removeMethod.SetAssociatedEvent(this, MethodKind.EventRemove);
PEFieldSymbol?associatedField = GetAssociatedField(privateFieldNameToSymbols, isWindowsRuntimeEvent);
if ((object?)associatedField != null)
{
_associatedFieldOpt = associatedField;
associatedField.SetAssociatedEvent(this);
}
}
if ((mdFlags & EventAttributes.SpecialName) != 0)
{
_flags |= Flags.IsSpecialName;
}
if ((mdFlags & EventAttributes.RTSpecialName) != 0)
{
_flags |= Flags.IsRuntimeSpecialName;
}
}