public static bool HasPreconditionAttribute(this BasePropertyDeclarationSyntax @this, Contract contract, SemanticModel model)
{
if (@this == null)
{
throw new ArgumentNullException(nameof(@this));
}
if (contract == null)
{
throw new ArgumentNullException(nameof(contract));
}
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
var attributeTypeSymbol = contract.AttributeType.GetTypeSymbol(model);
return([email protected]() &&
@this.AllAttributes()
.Any(a => model.GetTypeInfo(a).Type.Equals(attributeTypeSymbol)));
}
public static IEnumerable <Contract> GetPreconditions(this BasePropertyDeclarationSyntax @this, SemanticModel model, IContractProvider contractProvider)
{
if (@this == null)
{
throw new ArgumentNullException(nameof(@this));
}
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (contractProvider == null)
{
throw new ArgumentNullException(nameof(contractProvider));
}
var attributeTypeSymbol = typeof(ContractAttribute).GetTypeSymbol(model);
return(@this.IsReadonly()
? Enumerable.Empty <Contract>()
: @this.AllAttributes()
.Where(a => model.GetTypeInfo(a).Type.InheritsFrom(attributeTypeSymbol))
.Select(a => contractProvider[a.GetText().ToString().Trim()]));
}
