public ParseError(Position position, Func <string> getMessageFn, ParseError innerError)
{
Throw.IfNull(position, "position");
Throw.IfNull(getMessageFn, "getMessageFn");
this.position = position;
this.getMessageFn = getMessageFn;
this.InnerError = innerError;
}
public void Label_Error_SetsInnerError()
{
var parser = Parse.Fail <int>("Oh noes").Label(() => "Test");
var result = parser.Parse("");
ParseError error = result.FromError();
Assert.IsNotNull(error.InnerError);
Assert.AreEqual(error.InnerError.Message, "Oh noes");
}
public static IEither <T, ParseError> Error <T>(IInputReader input, Func <string> messageFn, ParseError innerError)
{
return(Error <T>(new ParseError(input.GetPosition(), messageFn, innerError)));
}
public static IEither <T, ParseError> Error <T>(ParseError error)
{
return(Either.Error <T, ParseError>(error));
}