public ArithmeticOperation Get(int operation, BaseTypes left, BaseTypes right)
{
var key = new ArithmeticOpKey(operation, left, right);
if (!ArithmeticOperations.TryGetValue(key, out var op))
{
throw new ArgumentException(
$"Cannot find operation {OberonGrammarLexer.DefaultVocabulary.GetDisplayName(operation)} ({left:G}, {right:G})");
}
return(op);
}
private ExpressionRepository()
{
var configuration = new ContainerConfiguration().WithAssembly(typeof(IArithmeticOperation).Assembly);
var container = configuration.CreateContainer();
var operations = container.GetExports <ExportFactory <IArithmeticOperation, ArithmeticOpMetadata> >();
// translate all arithmetic operations to a dictionary
ArithmeticOperations = new Dictionary <ArithmeticOpKey, ArithmeticOperation>();
foreach (var mefArithmeticOperation in operations)
{
var key = new ArithmeticOpKey(
mefArithmeticOperation.Metadata.Operation,
mefArithmeticOperation.Metadata.LeftHandType,
mefArithmeticOperation.Metadata.RightHandType,
mefArithmeticOperation.Metadata.ResultType);
ArithmeticOperations.Add(
key,
new ArithmeticOperation(mefArithmeticOperation.CreateExport().Value, key));
}
}