ArgumentException when using 3 member index on iOS. about lex.db

[emanuelpalm]

I just tried to change the line and see if it fixed the problem, but since I'm on a Mac and Xamarin Studio doesn't seem to like the Lex.Db solution, I can't verify anything.

[demigor]

Yes. This is the one …

From: Emanuel Palm [mailto:[email protected]]
Sent: Thursday, February 11, 2016 1:25 PM
To: demigor/lex.db [email protected]
Subject: [lex.db] ArgumentException when using 3 member index on iOS. (#40)

While running code equivalent to that below on iOS, an ArgumentException is thrown with the message:

method return type is incompatible

The code that causes the error is equivalent to the below pseudocode, with the exception being thrown as a response to the invocation of WithIndex. Using the WithIndex method with only two arguments work as expected.

var database = new DbInstance(path, "");
database
.Map()
.Automap(i => i.Key)
.WithIndex("some-index", i => i.Name, i => i.Color, i => i.Size);
database.Initialize();

While searching through the Lex.Db source code, I found the following line

lex.db/lib/Lex.Db.Shared/Db/DbTable.cs

Line 558 in 58f9521

var getter3 = member2.GetGetter<T, I3>();

of particular interest. It looks like a classical typo bug, with member2 being used to produce a value for getter3.

—
Reply to this email directly or view it on GitHub #40 . https://github.com/notifications/beacon/ACo4IWM-oycFJ5b6oItR3BmogCuVvTGCks5pjHUlgaJpZM4HYG4D.gif