public ImmutableArray <ITypeSymbol> GetBindFromTypes(ITypeSymbol type)
{
var result = new List <ITypeSymbol>();
foreach (var specificType in SpecificTypes)
{
if (_strictMode || type.CanBeCastedTo(specificType))
{
result.Add(specificType);
}
}
return(result.ToImmutableArray <ITypeSymbol>());
}
private void CheckForFromAndToTypes(
List <ITypeSymbol> bindFromTypeSemantics,
ITypeSymbol bindToTypeSemantic,
bool toFactory
)
{
if (bindFromTypeSemantics is null)
{
throw new ArgumentNullException(nameof(bindFromTypeSemantics));
}
if (bindToTypeSemantic is null)
{
throw new ArgumentNullException(nameof(bindToTypeSemantic));
}
//check for target type correct
if (bindToTypeSemantic.TypeKind.NotIn(TypeKind.Class, TypeKind.Struct))
{
throw new DpdtException(
DpdtExceptionTypeEnum.IncorrectBinding_IncorrectTarget,
$"Type [{bindToTypeSemantic.ToDisplayString()}] is not a class or struct",
bindToTypeSemantic.ToDisplayString()
);
}
if (!toFactory)
{
//it's not a factory
//check for cast exists
foreach (var bindFromSemantic in bindFromTypeSemantics)
{
if (!bindToTypeSemantic.CanBeCastedTo(bindFromSemantic.ToDisplayString()))
{
throw new DpdtException(
DpdtExceptionTypeEnum.IncorrectBinding_IncorrectFrom,
$"Type [{bindToTypeSemantic.ToDisplayString()}] cannot be casted to [{bindFromSemantic.ToDisplayString()}]",
bindToTypeSemantic.ToDisplayString()
);
}
}
}
else
{
//it's a factory
if (bindFromTypeSemantics.Count > 1)
{
throw new DpdtException(
DpdtExceptionTypeEnum.IncorrectBinding_IncorrectFrom,
$"It is allowed only from bind from type for factory bindings. Take a look to [{bindToTypeSemantic.ToDisplayString()}] binding.",
bindToTypeSemantic.ToDisplayString()
);
}
//check for partial clause
if (bindToTypeSemantic.DeclaringSyntaxReferences.Length > 1)
{
//it's partial!
}
else
{
var syntax = bindToTypeSemantic.DeclaringSyntaxReferences[0].GetSyntax();
if (syntax is ClassDeclarationSyntax cds)
{
if (!cds.Modifiers.Any(m => m.IsKind(SyntaxKind.PartialKeyword)))
{
throw new DpdtException(
DpdtExceptionTypeEnum.TargetClassMustBePartial,
$"Type [{bindToTypeSemantic.ToDisplayString()}] must be partial",
bindToTypeSemantic.ToDisplayString()
);
}
}
}
}
}