protected override void DoEmit(XamlEmitContext <IXamlILEmitter, XamlILNodeEmitResult> context, IXamlILEmitter codeGen)
{
if (_selectors.Count == 0)
{
throw new XamlLoadException("Invalid selector count", this);
}
if (_selectors.Count == 1)
{
_selectors[0].Emit(context, codeGen);
return;
}
var listType = context.Configuration.TypeSystem.FindType("System.Collections.Generic.List`1")
.MakeGenericType(base.Type.GetClrType());
var add = listType.FindMethod("Add", context.Configuration.WellKnownTypes.Void, false, Type.GetClrType());
codeGen
.Newobj(listType.FindConstructor());
foreach (var s in _selectors)
{
codeGen.Dup();
context.Emit(s, codeGen, Type.GetClrType());
codeGen.EmitCall(add, true);
}
EmitCall(context, codeGen,
m => m.Name == "Or" && m.Parameters.Count == 1 && m.Parameters[0].Name.StartsWith("IReadOnlyList"));
}
public XamlILNodeEmitResult Emit(XamlEmitContext <IXamlILEmitter, XamlILNodeEmitResult> context, IXamlILEmitter codeGen)
{
codeGen.Newobj(_constructor);
codeGen
.Dup()
.Ldc_I4(_values.Count)
.EmitCall(_listSetCapacityMethod);
foreach (var value in _values)
{
codeGen.Dup();
context.Emit(value, codeGen, _elementType);
codeGen.EmitCall(_listAddMethod);
}
return(XamlILNodeEmitResult.Type(0, Type.GetClrType()));
}
