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refactor: [TypeWrapping]型の読み替え処理をTypeConverterとして1クラスに分離
今後の機能拡充に際して、同様の処理が様々な箇所で必要となるため
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Reflection; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
|
|
||
| using UnembeddedResources; | ||
|
|
||
| namespace TypeWrapping | ||
| { | ||
| public class TypeConverter | ||
| { | ||
| private class ResourceSet | ||
| { | ||
| private readonly ResourceLocalizer Localizer = ResourceLocalizer.FromResXOfType<TypeConverter>("TypeWrapping"); | ||
|
|
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| [ResourceStringHolder(nameof(Localizer))] public Resource<string> ElementTypesButArrayNotSupported { get; private set; } | ||
|
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| public ResourceSet() | ||
| { | ||
| ResourceLoader.LoadAndSetAll(this); | ||
| } | ||
| } | ||
|
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| private static readonly Lazy<ResourceSet> Resources = new Lazy<ResourceSet>(); | ||
|
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| static TypeConverter() | ||
| { | ||
| #if DEBUG | ||
| _ = Resources.Value; | ||
| #endif | ||
| } | ||
|
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| private readonly Dictionary<Type, Type> ConvertibleTypes; | ||
| private readonly Dictionary<Type, Type> TypeBridges; | ||
|
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| public TypeConverter(Dictionary<Type, Type> convertibleTypes, Dictionary<Type, Type> typeBridges = null) | ||
| { | ||
| ConvertibleTypes = convertibleTypes; | ||
| TypeBridges = typeBridges ?? new Dictionary<Type, Type>(); | ||
| } | ||
|
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| public Type Convert(Type source) | ||
| { | ||
| if (source.IsGenericParameter) | ||
| { | ||
| Type declaringSource = source.DeclaringType; | ||
| Type declaringOriginal = Convert(declaringSource); | ||
|
|
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| return (declaringOriginal as TypeInfo).GenericTypeParameters[source.GenericParameterPosition]; | ||
| } | ||
| else if (source.IsConstructedGenericType) | ||
| { | ||
| Type sourceParent = source.GetGenericTypeDefinition(); | ||
| Type originalParent = ParseSimpleType(sourceParent); | ||
|
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| Type[] sourceChildren = source.GetGenericArguments(); | ||
| Type[] originalChildren = new Type[sourceChildren.Length]; | ||
| for (int i = 0; i < sourceChildren.Length; i++) | ||
| { | ||
| originalChildren[i] = ParseSimpleType(sourceChildren[i]); | ||
| } | ||
|
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| Type result = originalParent.MakeGenericType(originalChildren); | ||
| return result; | ||
| } | ||
| else if (source.HasElementType) | ||
| { | ||
| if (!source.IsArray || source.Name.Contains("*")) throw new NotSupportedException(Resources.Value.ElementTypesButArrayNotSupported.Value); | ||
|
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| Type sourceElement = source.GetElementType(); | ||
| Type originalElement = ParseSimpleType(sourceElement); | ||
|
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| int rank = source.GetArrayRank(); | ||
| Type result = rank == 1 ? originalElement.MakeArrayType() : originalElement.MakeArrayType(rank); | ||
| return result; | ||
| } | ||
| else | ||
| { | ||
| return ParseSimpleType(source); | ||
| } | ||
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| Type ParseSimpleType(Type simpleSource, bool allowBridgedTypes = true) | ||
| { | ||
| if (!ConvertibleTypes.TryGetValue(simpleSource, out Type result)) | ||
| { | ||
| if (allowBridgedTypes && TypeBridges.TryGetValue(simpleSource, out Type bridgedTo)) | ||
| { | ||
| return ParseSimpleType(bridgedTo, false); | ||
| } | ||
| } | ||
|
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| return result ?? simpleSource; | ||
| } | ||
| } | ||
| } | ||
| } |
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