private static bool TryGetMigrationInfo()

in src/dotnet/Rider.Plugins.EfCore/Migrations/MigrationsProvider.cs [46:82]

• 29 lines of code
• 5 McCabe index (conditional complexity)

    private static bool TryGetMigrationInfo(IClass @class, out MigrationInfo migrationInfo)
    {
      migrationInfo = null;

      var migrationShortName = @class.ShortName;
      var migrationAttribute = @class.GetAttributeInstance("MigrationAttribute");
      var dbContextAttribute = @class.GetAttributeInstance("DbContextAttribute");

      if (dbContextAttribute is null || migrationAttribute is null)
        return false;

      var migrationLongName = migrationAttribute
        .PositionParameter(0)
        .ConstantValue
        .StringValue;

      var dbContextClass = dbContextAttribute
        .PositionParameter(0)
        .TypeValue
        ?.GetScalarType()
        ?.GetClrName();

      if (migrationLongName is null || dbContextClass is null)
        return false;

      var migrationFolderAbsolutePath = @class.GetSourceFiles()
        .FirstOrDefault()
        .GetLocation().Directory.FileAccessPath;

      migrationInfo = new MigrationInfo(
        dbContextClass.FullName,
        migrationShortName,
        migrationLongName,
        migrationFolderAbsolutePath);

      return true;
    }