public static bool CustomValueConverter(AstTransformationContext context,
IXamlAstValueNode node, IXamlType type, out IXamlAstValueNode result)
{
if (!(node is XamlAstTextNode textNode))
{
result = null;
return(false);
}
var text = textNode.Text;
var types = context.GetAvaloniaTypes();
if (AvaloniaXamlIlLanguageParseIntrinsics.TryConvert(context, node, text, type, types, out result))
{
return(true);
}
if (type.FullName == "Avalonia.AvaloniaProperty")
{
var scope = context.ParentNodes().OfType <AvaloniaXamlIlTargetTypeMetadataNode>().FirstOrDefault();
if (scope == null)
{
throw new XamlX.XamlLoadException("Unable to find the parent scope for AvaloniaProperty lookup", node);
}
result = XamlIlAvaloniaPropertyHelper.CreateNode(context, text, scope.TargetType, node);
return(true);
}
result = null;
return(false);
}
public static bool CustomValueConverter(XamlIlAstTransformationContext context,
IXamlIlAstValueNode node, IXamlIlType type, out IXamlIlAstValueNode result)
{
if (type.FullName == "System.TimeSpan" &&
node is XamlIlAstTextNode tn &&
!tn.Text.Contains(":"))
{
var seconds = double.Parse(tn.Text, CultureInfo.InvariantCulture);
result = new XamlIlStaticOrTargetedReturnMethodCallNode(tn,
type.FindMethod("FromSeconds", type, false, context.Configuration.WellKnownTypes.Double),
new[]
{
new XamlIlConstantNode(tn, context.Configuration.WellKnownTypes.Double, seconds)
});
return(true);
}
if (type.FullName == "Avalonia.AvaloniaProperty")
{
var scope = context.ParentNodes().OfType <AvaloniaXamlIlTargetTypeMetadataNode>().FirstOrDefault();
if (scope == null)
{
throw new XamlIlLoadException("Unable to find the parent scope for AvaloniaProperty lookup", node);
}
if (!(node is XamlIlAstTextNode text))
{
throw new XamlIlLoadException("Property should be a text node", node);
}
result = XamlIlAvaloniaPropertyHelper.CreateNode(context, text.Text, scope.TargetType, text);
return(true);
}
result = null;
return(false);
}
public static bool CustomValueConverter(AstTransformationContext context,
IXamlAstValueNode node, IXamlType type, out IXamlAstValueNode result)
{
if (!(node is XamlAstTextNode textNode))
{
result = null;
return(false);
}
var text = textNode.Text;
var types = context.GetAvaloniaTypes();
if (type.FullName == "System.TimeSpan")
{
var tsText = text.Trim();
if (!TimeSpan.TryParse(tsText, CultureInfo.InvariantCulture, out var timeSpan))
{
// // shorthand seconds format (ie. "0.25")
if (!tsText.Contains(":") && double.TryParse(tsText,
NumberStyles.Float | NumberStyles.AllowThousands,
CultureInfo.InvariantCulture, out var seconds))
{
timeSpan = TimeSpan.FromSeconds(seconds);
}
else
{
throw new XamlX.XamlLoadException($"Unable to parse {text} as a time span", node);
}
}
result = new XamlStaticOrTargetedReturnMethodCallNode(node,
type.FindMethod("FromTicks", type, false, types.Long),
new[] { new XamlConstantNode(node, types.Long, timeSpan.Ticks) });
return(true);
}
if (type.Equals(types.FontFamily))
{
result = new AvaloniaXamlIlFontFamilyAstNode(types, text, node);
return(true);
}
if (type.FullName == "Avalonia.AvaloniaProperty")
{
var scope = context.ParentNodes().OfType <AvaloniaXamlIlTargetTypeMetadataNode>().FirstOrDefault();
if (scope == null)
{
throw new XamlX.XamlLoadException("Unable to find the parent scope for AvaloniaProperty lookup", node);
}
result = XamlIlAvaloniaPropertyHelper.CreateNode(context, text, scope.TargetType, node);
return(true);
}
result = null;
return(false);
}
public static bool CustomValueConverter(AstTransformationContext context,
IXamlAstValueNode node, IXamlType type, out IXamlAstValueNode result)
{
if (!(node is XamlAstTextNode textNode))
{
result = null;
return(false);
}
var text = textNode.Text;
var types = context.GetAvaloniaTypes();
if (type.FullName == "System.TimeSpan")
{
var tsText = text.Trim();
if (!TimeSpan.TryParse(tsText, CultureInfo.InvariantCulture, out var timeSpan))
{
// // shorthand seconds format (ie. "0.25")
if (!tsText.Contains(":") && double.TryParse(tsText,
NumberStyles.Float | NumberStyles.AllowThousands,
CultureInfo.InvariantCulture, out var seconds))
{
timeSpan = TimeSpan.FromSeconds(seconds);
}
else
{
throw new XamlX.XamlLoadException($"Unable to parse {text} as a time span", node);
}
}
result = new XamlStaticOrTargetedReturnMethodCallNode(node,
type.FindMethod("FromTicks", type, false, types.Long),
new[] { new XamlConstantNode(node, types.Long, timeSpan.Ticks) });
return(true);
}
if (type.Equals(types.FontFamily))
{
result = new AvaloniaXamlIlFontFamilyAstNode(types, text, node);
return(true);
}
if (type.Equals(types.Thickness))
{
var thickness = Thickness.Parse(text);
result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Thickness, types.ThicknessFullConstructor,
new[] { thickness.Left, thickness.Top, thickness.Right, thickness.Bottom });
return(true);
}
if (type.Equals(types.Point))
{
var point = Point.Parse(text);
result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Point, types.PointFullConstructor,
new[] { point.X, point.Y });
return(true);
}
if (type.Equals(types.Vector))
{
var vector = Vector.Parse(text);
result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Vector, types.VectorFullConstructor,
new[] { vector.X, vector.Y });
return(true);
}
if (type.Equals(types.Size))
{
var size = Size.Parse(text);
result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Size, types.SizeFullConstructor,
new[] { size.Width, size.Height });
return(true);
}
if (type.Equals(types.Matrix))
{
var matrix = Matrix.Parse(text);
result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Matrix, types.MatrixFullConstructor,
new[] { matrix.M11, matrix.M12, matrix.M21, matrix.M22, matrix.M31, matrix.M32 });
return(true);
}
if (type.Equals(types.CornerRadius))
{
var cornerRadius = CornerRadius.Parse(text);
result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.CornerRadius, types.CornerRadiusFullConstructor,
new[] { cornerRadius.TopLeft, cornerRadius.TopRight, cornerRadius.BottomRight, cornerRadius.BottomLeft });
return(true);
}
if (type.FullName == "Avalonia.AvaloniaProperty")
{
var scope = context.ParentNodes().OfType <AvaloniaXamlIlTargetTypeMetadataNode>().FirstOrDefault();
if (scope == null)
{
throw new XamlX.XamlLoadException("Unable to find the parent scope for AvaloniaProperty lookup", node);
}
result = XamlIlAvaloniaPropertyHelper.CreateNode(context, text, scope.TargetType, node);
return(true);
}
result = null;
return(false);
}
