public bool DoResolve(ResolveContext rc)
{
AttributeType.LookForAttribute = true;
ResolvedAttribute = CreateResolvedAttribute(rc);
if (ResolvedAttribute.AttributeType is UnknownTypeSpec)
{
rc.Report.Error(151, Location, "The attribute type `{0}' does not exist in the current context",
AttributeType.GetSignatureForError());
}
else
{
if (ResolvedAttribute.AttributeType is ResolvedTypeDefinitionSpec)
{
var t = ResolvedAttribute.AttributeType as ResolvedTypeDefinitionSpec;
if (t.IsAbstract)
{
rc.Report.Error(168, Location, "Cannot apply attribute class `{0}' because it is abstract", ResolvedAttribute.AttributeType.ToString());
}
if (t.IsStatic)
{
rc.Report.Error(169, Location, "Cannot apply attribute class `{0}' because it is static", ResolvedAttribute.AttributeType.ToString());
}
}
bool is_attrib = false;
foreach (IType b in ResolvedAttribute.AttributeType.DirectBaseTypes)
{
if (b.FullName == "Std.Attribute")
{
is_attrib = true;
break;
}
}
if (!is_attrib)
{
rc.Report.Error(170, Location, "<`{0}': is not an attribute class", ResolvedAttribute.AttributeType.ToString());
}
// ctor checking
var ctor = (ResolvedAttribute as VSharpResolvedAttribute).GetCtorInvocation();
if (ctor != null && ctor.IsError)
{
rc.Report.Error(171, Location, "A constructor has been found for `{0}' but an error has occured", ResolvedAttribute.AttributeType.ToString());
}
else if (ctor == null)
{
rc.Report.Error(172, Location, "No suitable constructor has been found for `{0}'", ResolvedAttribute.AttributeType.ToString());
}
}
return(true);
}
