Antlr3.Tool.ErrorManager.InitIdToMessageNameMapping C# (CSharp) Method

        static bool InitIdToMessageNameMapping()
        {
            // make sure a message exists, even if it's just to indicate a problem
            for ( int i = 0; i < idToMessageTemplateName.Length; i++ )
            {
                idToMessageTemplateName[i] = "INVALID MESSAGE ID: " + i;
            }
            // get list of fields and use it to fill in idToMessageTemplateName mapping
            FieldInfo[] fields = typeof( ErrorManager ).GetFields();
            for ( int i = 0; i < fields.Length; i++ )
            {
                FieldInfo f = fields[i];
                String fieldName = f.Name;
                if ( !fieldName.StartsWith( "MSG_" ) )
                {
                    continue;
                }
                String templateName =
                    fieldName.Substring( "MSG_".Length );
                int msgID = 0;
                try
                {
                    // get the constant value from this class object
                    msgID = (int)f.GetValue( null );
                    //msgID = f.getInt( typeof( ErrorManager ) );
                }
                catch ( FieldAccessException /*iae*/ )
                {
                    Console.Out.WriteLine( "cannot get const value for " + f.Name );
                    continue;
                }
                if ( fieldName.StartsWith( "MSG_" ) )
                {
                    idToMessageTemplateName[msgID] = templateName;
                }
            }
            return true;
        }