epic/OpenRA
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

attribute individual fields, not the class

Browse Source
This commit is contained in:
Bob
2010-08-27 19:13:42 +12:00
committed by Chris Forbes
parent 29a77f7c5c
commit 9fedeefdbc
6 changed files with 52 additions and 71 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
OpenRA.FileFormats/FieldLoader.cs
View File

@@ -165,49 +165,30 @@ namespace OpenRA.FileFormats
{
var ret = new Dictionary<FieldInfo, Func<string, Type, MiniYaml, object>>();
var fieldsToLoad = new List<FieldInfo>();
var attr = (FooAttribute[])type.GetCustomAttributes( typeof( FooAttribute ), false );
if( attr.Length == 0 )
{
var defCtor = type.GetConstructor( new Type[ 0 ] );
if( defCtor == null || ( defCtor.GetMethodImplementationFlags() | MethodImplAttributes.Runtime ) == 0 )
throw new InvalidOperationException( "FieldLoader: refusing to load type {0}; has non-default ctor".F( type ) );
fieldsToLoad.AddRange( type.GetFields() );
}
else if( attr[ 0 ].Fields != null )
fieldsToLoad.AddRange( attr[ 0 ].Fields.Select( x => type.GetField( x ) ) );
else
fieldsToLoad.AddRange( type.GetFields() );
foreach( var field in fieldsToLoad )
ret.Add( field, null );
foreach( var field in type.GetFields() )
{
var use = (LoadUsingAttribute[])field.GetCustomAttributes( typeof( LoadUsingAttribute ), false );
if( use.Length != 0 )
ret[ field ] = ( _1, fieldType, yaml ) => use[ 0 ].LoaderFunc( field )( yaml );
else
{
var attr2 = (FieldFromYamlKeyAttribute[])field.GetCustomAttributes( typeof( FieldFromYamlKeyAttribute ), false );
if( attr2.Length != 0 )
ret[ field ] = ( f, ft, yaml ) => GetValue( f, ft, yaml.Value );
}
var load = (LoadAttribute[])field.GetCustomAttributes( typeof( LoadAttribute ), false );
var loadUsing = (LoadUsingAttribute[])field.GetCustomAttributes( typeof( LoadUsingAttribute ), false );
var fromYamlKey = (FieldFromYamlKeyAttribute[])field.GetCustomAttributes( typeof( FieldFromYamlKeyAttribute ), false );
if( loadUsing.Length != 0 )
ret[ field ] = ( _1, fieldType, yaml ) => loadUsing[ 0 ].LoaderFunc( field )( yaml );
else if( fromYamlKey.Length != 0 )
ret[ field ] = ( f, ft, yaml ) => GetValue( f, ft, yaml.Value );
else if( load.Length != 0 )
ret[ field ] = null;
}
if( ret.Count == 0 )
foreach( var f in type.GetFields() )
ret.Add( f, null );
return ret;
}
public class FooAttribute : Attribute
{
public string[] Fields;
public FooAttribute( params string[] fields )
{
Fields = fields;
}
}
[AttributeUsage( AttributeTargets.Field )]
public class LoadAttribute : Attribute { }
[AttributeUsage( AttributeTargets.Field )]
public class LoadUsingAttribute : Attribute
{
Func<MiniYaml, object> loaderFuncCache;