// public static methods
public static AstFilter Translate(TranslationContext context, MethodCallExpression expression)
{
if (StringExpressionToRegexFilterTranslator.CanTranslate(expression))
{
return(StringExpressionToRegexFilterTranslator.Translate(context, expression));
}
throw new ExpressionNotSupportedException(expression);
}
public static AstFilter Translate(TranslationContext context, MethodCallExpression expression)
{
if (StringExpressionToRegexFilterTranslator.CanTranslate(expression))
{
return(StringExpressionToRegexFilterTranslator.Translate(context, expression));
}
var method = expression.Method;
var arguments = expression.Arguments;
if (method.IsStatic &&
method.Name == "Contains" &&
method.ReturnType == typeof(bool) &&
arguments.Count == 2)
{
var sourceExpression = arguments[0];
var sourceType = sourceExpression.Type;
var itemExpression = arguments[1];
var itemType = itemExpression.Type;
if (TypeImplementsIEnumerable(sourceType, itemType))
{
return(Translate(context, expression, sourceExpression, itemExpression));
}
}
if (!method.IsStatic &&
method.Name == "Contains" &&
method.ReturnType == typeof(bool) &&
arguments.Count == 1)
{
var sourceExpression = expression.Object;
var sourceType = sourceExpression.Type;
var itemExpression = arguments[0];
var itemType = itemExpression.Type;
if (TypeImplementsIEnumerable(sourceType, itemType))
{
return(Translate(context, expression, sourceExpression, itemExpression));
}
}
throw new ExpressionNotSupportedException(expression);
}
