public override void EmitWithArguments(
XamlEmitContextWithLocals <IXamlILEmitter, XamlILNodeEmitResult> context,
IXamlILEmitter emitter,
IReadOnlyList <IXamlAstValueNode> arguments)
{
emitter.Ldsfld(AvaloniaProperty);
context.Emit(arguments[1], emitter, Parameters[1]);
EmitAnchorAndBind(emitter);
}
protected override void DoEmit(XamlEmitContext <IXamlILEmitter, XamlILNodeEmitResult> context, IXamlILEmitter codeGen)
{
codeGen.Ldsfld(PropertyFiled);
context.Emit(Value, codeGen, context.Configuration.WellKnownTypes.Object);
EmitCall(context, codeGen,
m => m.Name == "PropertyEquals" &&
m.Parameters.Count == 3 &&
m.Parameters[1].FullName == "Avalonia.AvaloniaProperty" &&
m.Parameters[2].Equals(context.Configuration.WellKnownTypes.Object));
}
public static bool Emit(XamlIlEmitContext context, IXamlILEmitter emitter, XamlAstClrProperty property)
{
if (property is IXamlIlAvaloniaProperty ap)
{
emitter.Ldsfld(ap.AvaloniaProperty);
return(true);
}
var type = property.DeclaringType;
var name = property.Name + "Property";
var found = type.Fields.FirstOrDefault(f => f.IsStatic && f.Name == name);
if (found == null)
{
return(false);
}
emitter.Ldsfld(found);
return(true);
}
private void EmitSetValue(IXamlILEmitter emitter)
{
// Ignore the instance and load one from the static field to avoid extra local variable
var unsetValue = Types.AvaloniaProperty.Fields.First(f => f.Name == "UnsetValue");
emitter
.Ldsfld(AvaloniaProperty)
.Ldsfld(unsetValue)
.Ldc_I4(0)
.EmitCall(Types.AvaloniaObjectSetValueMethod, true);
}
public static bool Emit(XamlIlEmitContext context, IXamlILEmitter emitter, IXamlProperty property)
{
var type = (property.Getter ?? property.Setter).DeclaringType;
var name = property.Name + "Property";
var found = type.Fields.FirstOrDefault(f => f.IsStatic && f.Name == name);
if (found == null)
{
return(false);
}
emitter.Ldsfld(found);
return(true);
}
public void EmitCall(IXamlILEmitter emitter)
{
var method = Parent._avaloniaObject
.FindMethod(m => m.IsPublic && !m.IsStatic && m.Name == "GetValue"
&&
m.Parameters.Count == 1 &&
m.Parameters[0].Equals(Parent._avaloniaPropertyType));
if (method == null)
{
throw new XamlTypeSystemException(
"Unable to find T GetValue<T>(AvaloniaProperty<T>) on AvaloniaObject");
}
emitter
.Ldsfld(Parent._field)
.EmitCall(method);
if (Parent.PropertyType.IsValueType)
{
emitter.Unbox_Any(Parent.PropertyType);
}
}
public void Emit(XamlEmitContext <IXamlILEmitter, XamlILNodeEmitResult> context, IXamlILEmitter codeGen)
=> codeGen
.Ldsfld(_field)
.EmitCall(context.GetAvaloniaTypes()
.PropertyPathBuilder.FindMethod(m => m.Name == "Property"));
public XamlILNodeEmitResult Emit(XamlIlEmitContext context, IXamlILEmitter codeGen)
{
codeGen.Ldsfld(_field);
return(XamlILNodeEmitResult.Type(0, _field.FieldType));
}