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Update AutoMetadata
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Lines changed: 197 additions & 8 deletions

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‎README.md‎

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@@ -9,13 +9,18 @@ Auto generate anything you may want
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### `Antelcat.AutoGen.ComponentModel` :
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+ #### `[AutoMetadataFrom(Type, MemberTypes)]`
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Auto generate code using `Template` from target type members
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![AutoMetadata](./docs/AutoMetadata.png)
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+ #### `[AutoStringTo(string, Accessibility)]` :
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Auto generate string To extension
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only on `assembly` and `static partial class`
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![AutoStringTo](./docs/GenerateStringTo.png)
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![AutoStringTo](./docs/AutoStringTo.png)
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+ #### `Mapping` :
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@@ -25,7 +30,7 @@ Auto generate anything you may want
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> Only on `partial method`
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![AutoMapTo](./docs/GenerateMap.png)
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![AutoMapTo](./docs/AutoMap.png)
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> You can use to generate `shallow copy`
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@@ -49,7 +54,7 @@ Auto generate anything you may want
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+ #### `[MapConstructor(params string[])]` :
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Specified property to be added in constructor, will auto detect if `null`
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Specified property to be added in constructor, will auto-detect if `null`
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+ #### `[AutoFilePath]`:

docs/GenerateMap.png renamed to docs/AutoMap.png

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‎docs/AutoMetadata.png‎

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docs/GenerateStringTo.png renamed to docs/AutoStringTo.png

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‎src/Antelcat.AutoGen.Sample/Models/Diagnostics/Sample.cs‎

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using System.Reflection;
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using Antelcat.AutoGen.ComponentModel.Diagnostic;
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namespace Antelcat.AutoGen.Sample.Models.Diagnostics;
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[AutoMetadataFrom(typeof(Simulator), MemberTypes.Property,
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Leading = "public global::System.Collections.Generic.IEnumerable<string> Writables(){",
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Template =
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"""
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#if {CanWrite}
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yield return nameof({Name});
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#endif
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""",
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Final = "}")]
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public partial class Simulator
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{
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public string A { get; set; }
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public string B { get; }
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public string C { get; set; }
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public string D { get; }
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}

‎src/Antelcat.AutoGen.Sample/Models/Mapping/FileDescriptor.cs‎

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@@ -6,8 +6,8 @@ namespace Antelcat.AutoGen.Sample.Models.Mapping;
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public partial class FileDescriptor : ObservableObject
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{
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public required string FullName { get; set; }
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public virtual long Length { get; set; }
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public required string FullName { get; set; }
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public virtual long Length { get; set; }
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[ObservableProperty] private string property;
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}

‎src/Antelcat.AutoGen.Shared/Antelcat.AutoGen.Shared.projitems‎

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@@ -17,6 +17,7 @@
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<Compile Include="$(MSBuildThisFileDirectory)ComponentModel\AutoKeyAccessorAttribute.cs" />
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<Compile Include="$(MSBuildThisFileDirectory)ComponentModel\AutoKeyEnumerableAttribute.cs" />
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<Compile Include="$(MSBuildThisFileDirectory)ComponentModel\AutoStringToAttribute.cs" />
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<Compile Include="$(MSBuildThisFileDirectory)ComponentModel\Diagnostic\AutoMetadataFrom.cs" />
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<Compile Include="$(MSBuildThisFileDirectory)ComponentModel\Diagnostic\AutoReport.cs" />
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<Compile Include="$(MSBuildThisFileDirectory)ComponentModel\Diagnostic\AutoWatchAttribute.cs" />
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<Compile Include="$(MSBuildThisFileDirectory)ComponentModel\Mapping\AutoMapAttribute.cs" />

‎src/Antelcat.AutoGen.Shared/ComponentModel/Diagnostic/AutoMetadataFrom.cs‎

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using System;
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using System.Reflection;
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using Antelcat.AutoGen.ComponentModel.Abstractions;
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namespace Antelcat.AutoGen.ComponentModel.Diagnostic
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{
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/// <summary>
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/// Auto generate code using <see cref="Template"/> and members
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/// specified by <see cref="MemberTypes"/> from given <see cref="Type"/>
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/// </summary>
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/// <param name="forType">Type which contains target members</param>
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/// <param name="memberTypes">Types of the members</param>
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[AttributeUsage(AttributeTargets.Interface | AttributeTargets.Class | AttributeTargets.Struct, AllowMultiple = true,
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Inherited = false)]
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public class AutoMetadataFrom(Type forType, MemberTypes memberTypes) : AutoGenAttribute
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{
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internal Type ForType => forType;
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internal MemberTypes MemberTypes => memberTypes;
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/// <summary>
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/// Template applying to generate code, you can use
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/// {Name} {PropertyType} {CanRead} ... those members
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/// come from inherits of <see cref="MemberInfo"/>
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/// </summary>
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public string Template { get; set; } = string.Empty;
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/// <summary>
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/// Plain text added to the leading of generated code
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/// </summary>
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public string? Leading { get; set; }
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/// <summary>
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/// Plain text added to the final of generated code
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/// </summary>
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public string? Final { get; set; }
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}
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}

‎src/Antelcat.AutoGen.SourceGenerators/Generators/Diagnostic/MetadataGenerator.cs‎

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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Collections.Immutable;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Text.RegularExpressions;
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using Antelcat.AutoGen.ComponentModel.Diagnostic;
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using Antelcat.AutoGen.SourceGenerators.Extensions;
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using Antelcat.AutoGen.SourceGenerators.Generators.Base;
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using Microsoft.CodeAnalysis;
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using Microsoft.CodeAnalysis.CSharp.Syntax;
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namespace Antelcat.AutoGen.SourceGenerators.Generators.Diagnostic;
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[Generator(LanguageNames.CSharp)]
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public class MetadataGenerator : AttributeDetectBaseGenerator<AutoMetadataFrom>
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{
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private static IEnumerable<string> GetPlaceholders(string template)
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{
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foreach (var match in Regex.Matches(template, "{[\\w+((\\.)?)]+}"))
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{
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var str = match.ToString();
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yield return str.Substring(1, str.Length - 2);
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}
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}
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private static StringBuilder Resolve(MemberInfo info, StringBuilder stringBuilder)
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{
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foreach (var placeholder in GetPlaceholders(stringBuilder.ToString()))
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{
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object value = info;
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foreach (var part in placeholder.Split('.'))
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{
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if (value is not MemberInfo memberInfo) continue;
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var val = GetValue(memberInfo, part);
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if (val is null) return stringBuilder;
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value = val;
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}
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stringBuilder = stringBuilder.Replace('{' + placeholder + '}',
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value is Feast.CodeAnalysis.CompileTime.Type compile
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? compile.Symbol.GetFullyQualifiedName()
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: value.ToString());
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}
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return stringBuilder;
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}
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private static object? GetValue(MemberInfo info, string propertyName)
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{
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var type = info.GetType();
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return PropsMap.GetOrAdd(info.GetType(),
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_ =>
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{
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ConcurrentDictionary<string, PropertyInfo?> ret = [];
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var prop = type.GetProperty(propertyName);
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if (prop is null) return ret;
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ret.TryAdd(propertyName, prop);
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return ret;
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}).GetOrAdd(propertyName, _ => type.GetProperty(propertyName))?
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.GetValue(info);
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}
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private static readonly ConcurrentDictionary<Type, ConcurrentDictionary<string, PropertyInfo?>> PropsMap = [];
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protected override bool FilterSyntax(SyntaxNode node) => true;
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protected override void Initialize(SourceProductionContext context,
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Compilation compilation,
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ImmutableArray<GeneratorAttributeSyntaxContext> syntaxArray)
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{
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foreach (var groupedSyntaxContext in syntaxArray.GroupBy(x => (x.TargetSymbol as INamedTypeSymbol)!,
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SymbolEqualityComparer.Default))
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{
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var @class = (groupedSyntaxContext.Key as INamedTypeSymbol)!;
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foreach (var syntaxContext in groupedSyntaxContext)
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{
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foreach (var (metadata, index) in syntaxContext.Attributes.GetAttributes<AutoMetadataFrom>()
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.Select((x, i) => (x, i)))
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{
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var partial = @class.PartialTypeDeclaration();
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List<string> members = [];
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if (metadata.Leading != null) members.Add(metadata.Leading);
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var target = metadata.ForType;
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var fileName =
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$"{@class.ToType().QualifiedFullFileName()}_From_{target.QualifiedFullFileName()}_{index}.cs";
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const BindingFlags flags = BindingFlags.NonPublic |
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BindingFlags.Public |
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BindingFlags.Instance |
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BindingFlags.Static;
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Map(MemberTypes.Field, () => target.GetFields(flags).Where(x => !x.IsSpecialName));
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Map(MemberTypes.Property, () => target.GetProperties(flags));
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Map(MemberTypes.Constructor, () => target.GetConstructors(flags));
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Map(MemberTypes.NestedType, () => target.GetNestedTypes(flags));
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Map(MemberTypes.Event, () => target.GetEvents(flags));
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Map(MemberTypes.Method, () => target.GetMethods(flags).Where(x => !x.IsSpecialName));
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if (metadata.Final != null) members.Add(metadata.Final);
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var member = ParseMemberDeclaration(string.Join("", members));
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if (member != null) partial = partial.AddMembers(member);
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var file = CompilationUnit()
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.AddPartialType(@class, x => partial)
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.NormalizeWhitespace();
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context.AddSource(fileName, file.GetText(Encoding.UTF8));
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continue;
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void Map(MemberTypes memberTypes, Func<IEnumerable<MemberInfo>> memberGetter)
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{
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if (!metadata.MemberTypes.HasFlag(memberTypes)) return;
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members.AddRange(memberGetter()
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.Select(field => Resolve(field, new StringBuilder(metadata.Template))
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.ToString())
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);
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}
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}
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}
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}
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}
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}

‎src/Antelcat.AutoGen/Antelcat.AutoGen.csproj‎

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<IsPackable>true</IsPackable>
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<LangVersion>preview</LangVersion>
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<Version>1.2.7</Version>
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<FileVersion>1.2.7</FileVersion>
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<AssemblyVersion>1.2.7</AssemblyVersion>
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<Version>2.0.0-preview1</Version>
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<FileVersion>2.0.0</FileVersion>
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<AssemblyVersion>2.0.0</AssemblyVersion>
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<Authors>Antelcat</Authors>
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<Title>Antelcat.AutoGen</Title>

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