Contributors: Code Generators

[paulushub]

Description

• Svg_Model.cs
  The generators are mainly used to create the parts of partial classes. Interestingly, the file Svg_Model.cs is also generated, and I could not understand what is there to be generated in this file.
• Framework differences
  I was not expecting differences between the generated outputs for the various supported Frameworks. However, comparing the outputs. there are slight differences

Svg_Model.cs

Question: Please can anyone explain the need to generate this file and its contents?

// <auto-generated />
#nullable disable
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Globalization;

namespace Svg
{
    [AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
    public sealed class ElementFactoryAttribute : Attribute
    {
    }

    internal enum DescriptorType
    {
        Property,
        Event
    }

    internal interface ISvgPropertyDescriptor
    {
        DescriptorType DescriptorType { get; }
        string AttributeName { get; }
        string AttributeNamespace { get; }
        TypeConverter Converter { get; }
        Type Type { get; }
        object GetValue(object component);
        void SetValue(object component, ITypeDescriptorContext context, CultureInfo culture, object value);
    }

    internal class SvgPropertyDescriptor<T, TU> : ISvgPropertyDescriptor
    {
        public DescriptorType DescriptorType { get; }
        public string AttributeName { get; }
        public string AttributeNamespace { get; }
        public TypeConverter Converter { get; }
        public Type Type { get; } = typeof(TU);
        private Func<T, TU> Getter { get; }
        private Action<T, TU> Setter { get; }

        public SvgPropertyDescriptor(DescriptorType descriptorType, string attributeName, string attributeNamespace, TypeConverter converter, Func<T, TU> getter, Action<T, TU> setter)
        {
            DescriptorType = descriptorType;
            AttributeName = attributeName;
            AttributeNamespace = attributeNamespace;
            Converter = converter;
            Getter = getter;
            Setter = setter;
        }

        public object GetValue(object component)
        {
            return (object)Getter((T)component);
        }

        public void SetValue(object component, ITypeDescriptorContext context, CultureInfo culture, object value)
        {
            if (Converter != null)
            {
                Setter((T)component, (TU)Converter.ConvertFrom(context, culture, value));
            }
        }
    }
}

Framework differences

Simply, the following converters are not used for the .NET 6.0, .NET Core 3.1 and .NET Standard 2.1 but are used by the .NET Framework 4.6.2 and .NET Standard 2.0.

• System.ComponentModel.Int32Converter
• System.ComponentModel.BooleanConverter

Sample codes are given below, please check the generation of the codes for

• targetX
• targetY
• preserveAlpha

Question: These are set to null in the generated codes for .NET 6.0, .NET Core 3.1 . Any reason for these?

Svg_FilterEffects_SvgConvolveMatrix_Properties.cs - For .NET 6.0, .NET Core 3.1, .NET Standard 2.1

    public partial class SvgConvolveMatrix
    {
        internal override string AttributeName => "feConvolveMatrix";

        internal override List<Type> ClassNames => SvgConvolveMatrixClassNames;

        internal override Dictionary<string, ISvgPropertyDescriptor> Properties => SvgConvolveMatrixProperties;

        internal static List<Type> SvgConvolveMatrixClassNames = new List<Type>() { typeof(Svg.FilterEffects.SvgConvolveMatrix) };

        internal static Dictionary<string, ISvgPropertyDescriptor> SvgConvolveMatrixProperties = new Dictionary<string, ISvgPropertyDescriptor>()
        {
            ["order"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, Svg.SvgNumberCollection>(DescriptorType.Property, "order", "http://www.w3.org/2000/svg", new Svg.SvgNumberCollectionConverter(), (t) => t.Order, (t, v) => t.Order = v),
            ["kernelMatrix"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, Svg.SvgNumberCollection>(DescriptorType.Property, "kernelMatrix", "http://www.w3.org/2000/svg", new Svg.SvgNumberCollectionConverter(), (t) => t.KernelMatrix, (t, v) => t.KernelMatrix = v),
            ["divisor"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Single>(DescriptorType.Property, "divisor", "http://www.w3.org/2000/svg", new System.ComponentModel.SingleConverter(), (t) => t.Divisor, (t, v) => t.Divisor = v),
            ["bias"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Single>(DescriptorType.Property, "bias", "http://www.w3.org/2000/svg", new System.ComponentModel.SingleConverter(), (t) => t.Bias, (t, v) => t.Bias = v),
            ["targetX"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Int32>(DescriptorType.Property, "targetX", "http://www.w3.org/2000/svg", null, (t) => t.TargetX, (t, v) => t.TargetX = v),
            ["targetY"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Int32>(DescriptorType.Property, "targetY", "http://www.w3.org/2000/svg", null, (t) => t.TargetY, (t, v) => t.TargetY = v),
            ["edgeMode"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, Svg.FilterEffects.SvgEdgeMode>(DescriptorType.Property, "edgeMode", "http://www.w3.org/2000/svg", new Svg.SvgEdgeModeConverter(), (t) => t.EdgeMode, (t, v) => t.EdgeMode = v),
            ["kernelUnitLength"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, Svg.SvgNumberCollection>(DescriptorType.Property, "kernelUnitLength", "http://www.w3.org/2000/svg", new Svg.SvgNumberCollectionConverter(), (t) => t.KernelUnitLength, (t, v) => t.KernelUnitLength = v),
            ["preserveAlpha"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Boolean>(DescriptorType.Property, "preserveAlpha", "http://www.w3.org/2000/svg", null, (t) => t.PreserveAlpha, (t, v) => t.PreserveAlpha = v),
        };

}

Svg_FilterEffects_SvgConvolveMatrix_Properties.cs - For .NET Framework 4.6.2, .NET Standard 2.0

    public partial class SvgConvolveMatrix
    {
        internal override string AttributeName => "feConvolveMatrix";

        internal override List<Type> ClassNames => SvgConvolveMatrixClassNames;

        internal override Dictionary<string, ISvgPropertyDescriptor> Properties => SvgConvolveMatrixProperties;

        internal static List<Type> SvgConvolveMatrixClassNames = new List<Type>() { typeof(Svg.FilterEffects.SvgConvolveMatrix) };

        internal static Dictionary<string, ISvgPropertyDescriptor> SvgConvolveMatrixProperties = new Dictionary<string, ISvgPropertyDescriptor>()
        {
            ["order"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, Svg.SvgNumberCollection>(DescriptorType.Property, "order", "http://www.w3.org/2000/svg", new Svg.SvgNumberCollectionConverter(), (t) => t.Order, (t, v) => t.Order = v),
            ["kernelMatrix"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, Svg.SvgNumberCollection>(DescriptorType.Property, "kernelMatrix", "http://www.w3.org/2000/svg", new Svg.SvgNumberCollectionConverter(), (t) => t.KernelMatrix, (t, v) => t.KernelMatrix = v),
            ["divisor"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Single>(DescriptorType.Property, "divisor", "http://www.w3.org/2000/svg", new System.ComponentModel.SingleConverter(), (t) => t.Divisor, (t, v) => t.Divisor = v),
            ["bias"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Single>(DescriptorType.Property, "bias", "http://www.w3.org/2000/svg", new System.ComponentModel.SingleConverter(), (t) => t.Bias, (t, v) => t.Bias = v),
            ["targetX"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Int32>(DescriptorType.Property, "targetX", "http://www.w3.org/2000/svg", new System.ComponentModel.Int32Converter(), (t) => t.TargetX, (t, v) => t.TargetX = v),
            ["targetY"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Int32>(DescriptorType.Property, "targetY", "http://www.w3.org/2000/svg", new System.ComponentModel.Int32Converter(), (t) => t.TargetY, (t, v) => t.TargetY = v),
            ["edgeMode"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, Svg.FilterEffects.SvgEdgeMode>(DescriptorType.Property, "edgeMode", "http://www.w3.org/2000/svg", new Svg.SvgEdgeModeConverter(), (t) => t.EdgeMode, (t, v) => t.EdgeMode = v),
            ["kernelUnitLength"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, Svg.SvgNumberCollection>(DescriptorType.Property, "kernelUnitLength", "http://www.w3.org/2000/svg", new Svg.SvgNumberCollectionConverter(), (t) => t.KernelUnitLength, (t, v) => t.KernelUnitLength = v),
            ["preserveAlpha"] = new SvgPropertyDescriptor<Svg.FilterEffects.SvgConvolveMatrix, System.Boolean>(DescriptorType.Property, "preserveAlpha", "http://www.w3.org/2000/svg", new System.ComponentModel.BooleanConverter(), (t) => t.PreserveAlpha, (t, v) => t.PreserveAlpha = v),
        };

}

[paulushub]

Framework differences

Updates: Could be a bug in
https://github.com/svg-net/SVG/blob/2e765f404ba0992e8b17c4081f011b668d3aa8d4/Generators/AvailableElementsGenerator.cs#L754C1-L754C1