public ExpressionConverter()
{
_entityProperties = MappedEntity <TModel, TEntity> .EntityProperties;
_propertyMap = new PropertyConverterMap(MappedEntity <TModel, TEntity> .PropertyMap.Cast <PropertyConverter>());
_defaultVisitor = new DefaultExpressionVisitor();
_parameterVisitor = new ParameterExpressionVisitor(_propertyMap);
}
public static IExpression <T> Parse <T>(string expression, IPropertyValueProvider <T> valueProvider)
{
var sw = Stopwatch.StartNew();
var charStream = new AntlrInputStream(expression);
var lexer = new ExpressionLexer(charStream);
var tokenStream = new CommonTokenStream(lexer);
var parser = new ExpressionParser(tokenStream);
var visitor = new DefaultExpressionVisitor <T>(valueProvider);
sw.Stop();
Console.WriteLine(" Setup: " + sw.ElapsedMilliseconds);
sw.Restart();
var exprContext = parser.expr();
sw.Stop();
Console.WriteLine(" Parse: " + sw.ElapsedMilliseconds);
sw.Restart();
var expr = visitor.Visit(exprContext);
sw.Stop();
Console.WriteLine(" Visit: " + sw.ElapsedMilliseconds);
return(expr);
}