internal override void DecodeWellKnownAttribute(ref DecodeWellKnownAttributeArguments <AttributeSyntax, CSharpAttributeData, AttributeLocation> arguments)
{
Debug.Assert((object)arguments.AttributeSyntaxOpt != null);
var diagnostics = (BindingDiagnosticBag)arguments.Diagnostics;
var attribute = arguments.Attribute;
Debug.Assert(!attribute.HasErrors);
Debug.Assert(arguments.SymbolPart == AttributeLocation.None);
if (attribute.IsTargetAttribute(this, AttributeDescription.SpecialNameAttribute))
{
arguments.GetOrCreateData <FieldWellKnownAttributeData>().HasSpecialNameAttribute = true;
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.NonSerializedAttribute))
{
arguments.GetOrCreateData <FieldWellKnownAttributeData>().HasNonSerializedAttribute = true;
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.FieldOffsetAttribute))
{
if (this.IsStatic || this.IsConst)
{
// CS0637: The FieldOffset attribute is not allowed on static or const fields
diagnostics.Add(ErrorCode.ERR_StructOffsetOnBadField, arguments.AttributeSyntaxOpt.Name.Location, arguments.AttributeSyntaxOpt.GetErrorDisplayName());
}
else
{
int offset = attribute.CommonConstructorArguments[0].DecodeValue <int>(SpecialType.System_Int32);
if (offset < 0)
{
// Dev10 reports CS0647: "Error emitting attribute ..."
CSharpSyntaxNode attributeArgumentSyntax = attribute.GetAttributeArgumentSyntax(0, arguments.AttributeSyntaxOpt);
diagnostics.Add(ErrorCode.ERR_InvalidAttributeArgument, attributeArgumentSyntax.Location, arguments.AttributeSyntaxOpt.GetErrorDisplayName());
offset = 0;
}
// Set field offset even if the attribute specifies an invalid value, so that
// post-validation knows that the attribute is applied and reports better errors.
arguments.GetOrCreateData <FieldWellKnownAttributeData>().SetFieldOffset(offset);
}
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.MarshalAsAttribute))
{
MarshalAsAttributeDecoder <FieldWellKnownAttributeData, AttributeSyntax, CSharpAttributeData, AttributeLocation> .Decode(ref arguments, AttributeTargets.Field, MessageProvider.Instance);
}
else if (ReportExplicitUseOfReservedAttributes(in arguments,
ReservedAttributes.DynamicAttribute | ReservedAttributes.IsReadOnlyAttribute | ReservedAttributes.IsUnmanagedAttribute | ReservedAttributes.IsByRefLikeAttribute | ReservedAttributes.TupleElementNamesAttribute | ReservedAttributes.NullableAttribute | ReservedAttributes.NativeIntegerAttribute))
{
}
internal sealed override void DecodeWellKnownAttribute(ref DecodeWellKnownAttributeArguments <AttributeSyntax, CSharpAttributeData, AttributeLocation> arguments)
{
Debug.Assert((object)arguments.AttributeSyntaxOpt != null);
var attribute = arguments.Attribute;
Debug.Assert(!attribute.HasErrors);
Debug.Assert(arguments.SymbolPart == AttributeLocation.None);
if (attribute.IsTargetAttribute(this, AttributeDescription.SpecialNameAttribute))
{
arguments.GetOrCreateData <CommonFieldWellKnownAttributeData>().HasSpecialNameAttribute = true;
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.NonSerializedAttribute))
{
arguments.GetOrCreateData <CommonFieldWellKnownAttributeData>().HasNonSerializedAttribute = true;
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.FieldOffsetAttribute))
{
if (this.IsStatic || this.IsConst)
{
// CS0637: The FieldOffset attribute is not allowed on static or const fields
arguments.Diagnostics.Add(ErrorCode.ERR_StructOffsetOnBadField, arguments.AttributeSyntaxOpt.Name.Location, arguments.AttributeSyntaxOpt.GetErrorDisplayName());
}
else
{
int offset = attribute.CommonConstructorArguments[0].DecodeValue <int>(SpecialType.System_Int32);
if (offset < 0)
{
// Dev10 reports CS0647: "Error emitting attribute ..."
CSharpSyntaxNode attributeArgumentSyntax = attribute.GetAttributeArgumentSyntax(0, arguments.AttributeSyntaxOpt);
arguments.Diagnostics.Add(ErrorCode.ERR_InvalidAttributeArgument, attributeArgumentSyntax.Location, arguments.AttributeSyntaxOpt.GetErrorDisplayName());
offset = 0;
}
// Set field offset even if the attribute specifies an invalid value, so that
// post-validation knows that the attribute is applied and reports better errors.
arguments.GetOrCreateData <CommonFieldWellKnownAttributeData>().SetFieldOffset(offset);
}
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.MarshalAsAttribute))
{
MarshalAsAttributeDecoder <CommonFieldWellKnownAttributeData, AttributeSyntax, CSharpAttributeData, AttributeLocation> .Decode(ref arguments, AttributeTargets.Field, MessageProvider.Instance);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.FixedBufferAttribute))
{
// error CS1716: Do not use 'System.Runtime.CompilerServices.FixedBuffer' attribute. Use the 'fixed' field modifier instead.
arguments.Diagnostics.Add(ErrorCode.ERR_DoNotUseFixedBufferAttr, arguments.AttributeSyntaxOpt.Name.Location);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.DynamicAttribute))
{
// DynamicAttribute should not be set explicitly.
arguments.Diagnostics.Add(ErrorCode.ERR_ExplicitDynamicAttr, arguments.AttributeSyntaxOpt.Location);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.DateTimeConstantAttribute))
{
VerifyConstantValueMatches(attribute.DecodeDateTimeConstantValue(), ref arguments);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.DecimalConstantAttribute))
{
VerifyConstantValueMatches(attribute.DecodeDecimalConstantValue(), ref arguments);
}
}
internal override void DecodeWellKnownAttribute(ref DecodeWellKnownAttributeArguments <AttributeSyntax, CSharpAttributeData, AttributeLocation> arguments)
{
Debug.Assert((object)arguments.AttributeSyntaxOpt != null);
var attribute = arguments.Attribute;
Debug.Assert(!attribute.HasErrors);
Debug.Assert(arguments.SymbolPart == AttributeLocation.None);
if (attribute.IsTargetAttribute(this, AttributeDescription.DefaultParameterValueAttribute))
{
// Attribute decoded and constant value stored during EarlyDecodeWellKnownAttribute.
DecodeDefaultParameterValueAttribute(AttributeDescription.DefaultParameterValueAttribute, ref arguments);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.DecimalConstantAttribute))
{
// Attribute decoded and constant value stored during EarlyDecodeWellKnownAttribute.
DecodeDefaultParameterValueAttribute(AttributeDescription.DecimalConstantAttribute, ref arguments);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.DateTimeConstantAttribute))
{
// Attribute decoded and constant value stored during EarlyDecodeWellKnownAttribute.
DecodeDefaultParameterValueAttribute(AttributeDescription.DateTimeConstantAttribute, ref arguments);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.OptionalAttribute))
{
Debug.Assert(this.lazyHasOptionalAttribute == ThreeState.True);
if (HasDefaultArgumentSyntax)
{
// error CS1745: Cannot specify default parameter value in conjunction with DefaultParameterAttribute or OptionalAttribute
arguments.Diagnostics.Add(ErrorCode.ERR_DefaultValueUsedWithAttributes, arguments.AttributeSyntaxOpt.Name.Location);
}
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.ParamArrayAttribute))
{
// error CS0674: Do not use 'System.ParamArrayAttribute'. Use the 'params' keyword instead.
arguments.Diagnostics.Add(ErrorCode.ERR_ExplicitParamArray, arguments.AttributeSyntaxOpt.Name.Location);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.InAttribute))
{
if (this.RefKind == RefKind.Out)
{
// error CS0036: An out parameter cannot have the In attribute
arguments.Diagnostics.Add(ErrorCode.ERR_InAttrOnOutParam, arguments.AttributeSyntaxOpt.Name.Location);
}
else
{
arguments.GetOrCreateData <CommonParameterWellKnownAttributeData>().HasInAttribute = true;
}
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.OutAttribute))
{
arguments.GetOrCreateData <CommonParameterWellKnownAttributeData>().HasOutAttribute = true;
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.MarshalAsAttribute))
{
MarshalAsAttributeDecoder <CommonParameterWellKnownAttributeData, AttributeSyntax, CSharpAttributeData, AttributeLocation> .Decode(ref arguments, AttributeTargets.Parameter, MessageProvider.Instance);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.IDispatchConstantAttribute))
{
arguments.GetOrCreateData <CommonParameterWellKnownAttributeData>().HasIDispatchConstantAttribute = true;
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.IUnknownConstantAttribute))
{
arguments.GetOrCreateData <CommonParameterWellKnownAttributeData>().HasIUnknownConstantAttribute = true;
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.CallerLineNumberAttribute))
{
ValidateCallerLineNumberAttribute(arguments.AttributeSyntaxOpt, arguments.Diagnostics);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.CallerFilePathAttribute))
{
ValidateCallerFilePathAttribute(arguments.AttributeSyntaxOpt, arguments.Diagnostics);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.CallerMemberNameAttribute))
{
ValidateCallerMemberNameAttribute(arguments.AttributeSyntaxOpt, arguments.Diagnostics);
}
else if (attribute.IsTargetAttribute(this, AttributeDescription.DynamicAttribute))
{
// DynamicAttribute should not be set explicitly.
arguments.Diagnostics.Add(ErrorCode.ERR_ExplicitDynamicAttr, arguments.AttributeSyntaxOpt.Location);
}
}
