private static bool DoesSignatureMatch(
PEModuleSymbol moduleSymbol,
TypeSymbol eventType,
PEMethodSymbol method)
{
// CONSIDER: It would be nice if we could reuse this signature information in the PEMethodSymbol.
var metadataDecoder = new MetadataDecoder(moduleSymbol, method);
SignatureHeader signatureHeader;
BadImageFormatException mrEx;
var methodParams = metadataDecoder.GetSignatureForMethod(method.Handle, out signatureHeader, out mrEx, setParamHandles: false);
if (mrEx != null)
{
return(false);
}
return(metadataDecoder.DoesSignatureMatchEvent(eventType, methodParams));
}
private PEPropertySymbol(
PEModuleSymbol moduleSymbol,
PENamedTypeSymbol containingType,
PropertyDefinitionHandle handle,
PEMethodSymbol getMethod,
PEMethodSymbol setMethod,
int countOfCustomModifiers,
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);
// Dynamify object type if necessary
originalPropertyType = originalPropertyType.AsDynamicIfNoPia(_containingType);
// We start without annotation (they will be decoded below)
var propertyType = TypeSymbolWithAnnotations.Create(originalPropertyType, customModifiers: typeCustomModifiers);
// Decode nullable before tuple types to avoid converting between
// NamedTypeSymbol and TupleTypeSymbol unnecessarily.
propertyType = NullableTypeDecoder.TransformType(propertyType, handle, moduleSymbol);
propertyType = TupleTypeDecoder.DecodeTupleTypesIfApplicable(propertyType, handle, moduleSymbol);
_propertyType = propertyType;
// 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;
}
}