public static bool TryConvert(AstTransformationContext context, IXamlAstValueNode node, string text, IXamlType type, AvaloniaXamlIlWellKnownTypes types, out IXamlAstValueNode result) { 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($"Unable to parse {text} as a time span", node); } } result = new XamlStaticOrTargetedReturnMethodCallNode(node, type.FindMethod("FromTicks", type, false, types.Long), new[] { new XamlConstantNode(node, types.Long, timeSpan.Ticks) }); return(true); } if (type.Equals(types.FontFamily)) { result = new AvaloniaXamlIlFontFamilyAstNode(types, text, node); return(true); } if (type.Equals(types.Thickness)) { try { var thickness = Thickness.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Thickness, types.ThicknessFullConstructor, new[] { thickness.Left, thickness.Top, thickness.Right, thickness.Bottom }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a thickness", node); } } if (type.Equals(types.Point)) { try { var point = Point.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Point, types.PointFullConstructor, new[] { point.X, point.Y }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a point", node); } } if (type.Equals(types.Vector)) { try { var vector = Vector.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Vector, types.VectorFullConstructor, new[] { vector.X, vector.Y }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a vector", node); } } if (type.Equals(types.Size)) { try { var size = Size.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Size, types.SizeFullConstructor, new[] { size.Width, size.Height }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a size", node); } } if (type.Equals(types.Matrix)) { try { var matrix = Matrix.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Matrix, types.MatrixFullConstructor, new[] { matrix.M11, matrix.M12, matrix.M21, matrix.M22, matrix.M31, matrix.M32 }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a matrix", node); } } if (type.Equals(types.CornerRadius)) { try { 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); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a corner radius", node); } } if (type.Equals(types.Color)) { if (!Color.TryParse(text, out Color color)) { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a color", node); } result = new XamlStaticOrTargetedReturnMethodCallNode(node, type.GetMethod( new FindMethodMethodSignature("FromUInt32", type, types.UInt) { IsStatic = true }), new[] { new XamlConstantNode(node, types.UInt, color.ToUint32()) }); return(true); } if (type.Equals(types.GridLength)) { try { var gridLength = GridLength.Parse(text); result = new AvaloniaXamlIlGridLengthAstNode(node, types, gridLength); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a grid length", node); } } if (type.Equals(types.Cursor)) { if (TypeSystemHelpers.TryGetEnumValueNode(types.StandardCursorType, text, node, out var enumConstantNode)) { var cursorTypeRef = new XamlAstClrTypeReference(node, types.Cursor, false); result = new XamlAstNewClrObjectNode(node, cursorTypeRef, types.CursorTypeConstructor, new List <IXamlAstValueNode> { enumConstantNode }); return(true); } } if (type.Equals(types.ColumnDefinitions)) { return(ConvertDefinitionList(node, text, types, types.ColumnDefinitions, types.ColumnDefinition, "column definitions", out result)); } if (type.Equals(types.RowDefinitions)) { return(ConvertDefinitionList(node, text, types, types.RowDefinitions, types.RowDefinition, "row definitions", out result)); } if (type.Equals(types.Classes)) { var classes = text.Split(' '); var classNodes = classes.Select(c => new XamlAstTextNode(node, c, types.XamlIlTypes.String)).ToArray(); result = new AvaloniaXamlIlAvaloniaListConstantAstNode(node, types, types.Classes, types.XamlIlTypes.String, classNodes); return(true); } result = null; return(false); }
public static bool CustomValueConverter(AstTransformationContext context, IXamlAstValueNode node, IXamlType type, out IXamlAstValueNode result) { if (!(node is XamlAstTextNode textNode)) { result = null; return(false); } var text = textNode.Text; var types = context.GetAvaloniaTypes(); if (type.FullName == "System.TimeSpan") { var tsText = text.Trim(); if (!TimeSpan.TryParse(tsText, CultureInfo.InvariantCulture, out var timeSpan)) { // // shorthand seconds format (ie. "0.25") if (!tsText.Contains(":") && double.TryParse(tsText, NumberStyles.Float | NumberStyles.AllowThousands, CultureInfo.InvariantCulture, out var seconds)) { timeSpan = TimeSpan.FromSeconds(seconds); } else { throw new XamlX.XamlLoadException($"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)) { try { 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); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a thickness", node); } } if (type.Equals(types.Point)) { try { var point = Point.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Point, types.PointFullConstructor, new[] { point.X, point.Y }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a point", node); } } if (type.Equals(types.Vector)) { try { var vector = Vector.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Vector, types.VectorFullConstructor, new[] { vector.X, vector.Y }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a vector", node); } } if (type.Equals(types.Size)) { try { var size = Size.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.Size, types.SizeFullConstructor, new[] { size.Width, size.Height }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a size", node); } } if (type.Equals(types.Matrix)) { try { 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); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a matrix", node); } } if (type.Equals(types.CornerRadius)) { try { var cornerRadius = CornerRadius.Parse(text); result = new AvaloniaXamlIlVectorLikeConstantAstNode(node, types, types.CornerRadius, types.CornerRadiusFullConstructor, new[] { cornerRadius.TopLeft, cornerRadius.TopRight, cornerRadius.BottomRight, cornerRadius.BottomLeft }); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a corner radius", node); } } if (type.Equals(types.Color)) { if (!Color.TryParse(text, out Color color)) { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a color", node); } result = new XamlStaticOrTargetedReturnMethodCallNode(node, type.GetMethod( new FindMethodMethodSignature("FromUInt32", type, types.UInt) { IsStatic = true }), new[] { new XamlConstantNode(node, types.UInt, color.ToUint32()) }); return(true); } if (type.Equals(types.GridLength)) { try { var gridLength = GridLength.Parse(text); result = new AvaloniaXamlIlGridLengthAstNode(node, types, gridLength); return(true); } catch { throw new XamlX.XamlLoadException($"Unable to parse \"{text}\" as a grid length", node); } } if (type.Equals(types.Cursor)) { if (TypeSystemHelpers.TryGetEnumValueNode(types.StandardCursorType, text, node, out var enumConstantNode)) { var cursorTypeRef = new XamlAstClrTypeReference(node, types.Cursor, false); result = new XamlAstNewClrObjectNode(node, cursorTypeRef, types.CursorTypeConstructor, new List <IXamlAstValueNode> { enumConstantNode }); 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); }