public FilterExpressionKeyword(string text, FilterExpressionToken token)
{
if (text == null)
{
throw new ArgumentNullException(nameof(text));
}
Text = text;
Token = token;
}
private static TokenListParser <FilterExpressionToken, Expression> StringFunction(Expression obj, FilterExpressionToken func) =>
from methodName in Token.EqualTo(func).Value(s_stringFunctions[func])
from lparen in Token.EqualTo(FilterExpressionToken.LParen)
from prop in Property(obj)
from constant in Token.EqualTo(FilterExpressionToken.Comma).IgnoreThen(Constant(prop.IsNullOrNullable()))
from rparen in Token.EqualTo(FilterExpressionToken.RParen)
select(Expression) Expression.Call(prop, typeof(string).GetMethod(methodName, new[] { typeof(string) }) !, constant);
internal UnexpectedTokenException(FilterExpressionToken token, string message)
: this($"Unexpected {token}. {message}")
{
}
internal UnexpectedTokenException(FilterExpressionToken token)
: this(token, "")
{
}
