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Merge pull request #553 from stakx/dp/refactor/instance-contributors
Split up instance contributors into 3 single-purpose contributors
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37 changes: 0 additions & 37 deletions
37
src/Castle.Core/DynamicProxy/Contributors/ClassProxyWithTargetInstanceContributor.cs
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47 changes: 47 additions & 0 deletions
47
src/Castle.Core/DynamicProxy/Contributors/NonInheritableAttributesContributor.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| // Copyright 2004-2021 Castle Project - http://www.castleproject.org/ | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| namespace Castle.DynamicProxy.Contributors | ||
| { | ||
| using System; | ||
|
|
||
| using Castle.DynamicProxy.Generators; | ||
| using Castle.DynamicProxy.Generators.Emitters; | ||
| using Castle.DynamicProxy.Internal; | ||
|
|
||
| /// <summary> | ||
| /// Reproduces the proxied type's non-inheritable custom attributes on the proxy type. | ||
| /// </summary> | ||
| internal sealed class NonInheritableAttributesContributor : ITypeContributor | ||
| { | ||
| private readonly Type targetType; | ||
|
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| public NonInheritableAttributesContributor(Type targetType) | ||
| { | ||
| this.targetType = targetType; | ||
| } | ||
|
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| public void Generate(ClassEmitter emitter) | ||
| { | ||
| foreach (var attribute in targetType.GetNonInheritableAttributes()) | ||
| { | ||
| emitter.DefineCustomAttribute(attribute.Builder); | ||
| } | ||
| } | ||
|
|
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| public void CollectElementsToProxy(IProxyGenerationHook hook, MetaType model) | ||
| { | ||
| } | ||
| } | ||
| } |
74 changes: 74 additions & 0 deletions
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src/Castle.Core/DynamicProxy/Contributors/ProxyTargetAccessorContributor.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| // Copyright 2004-2021 Castle Project - http://www.castleproject.org/ | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| namespace Castle.DynamicProxy.Contributors | ||
| { | ||
| using System; | ||
|
|
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| using Castle.DynamicProxy.Generators; | ||
| using Castle.DynamicProxy.Generators.Emitters; | ||
| using Castle.DynamicProxy.Generators.Emitters.SimpleAST; | ||
|
|
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| /// <summary> | ||
| /// Adds an implementation for <see cref="IProxyTargetAccessor"/> to the proxy type. | ||
| /// </summary> | ||
| internal sealed class ProxyTargetAccessorContributor : ITypeContributor | ||
| { | ||
| private readonly Func<Reference> getTargetReference; | ||
| private readonly Type targetType; | ||
|
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| public ProxyTargetAccessorContributor(Func<Reference> getTargetReference, Type targetType) | ||
| { | ||
| this.getTargetReference = getTargetReference; | ||
| this.targetType = targetType; | ||
| } | ||
|
|
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| public void CollectElementsToProxy(IProxyGenerationHook hook, MetaType model) | ||
| { | ||
| } | ||
|
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| public void Generate(ClassEmitter emitter) | ||
| { | ||
| var interceptorsField = emitter.GetField("__interceptors"); | ||
| var targetReference = getTargetReference(); | ||
|
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| var dynProxyGetTarget = emitter.CreateMethod(nameof(IProxyTargetAccessor.DynProxyGetTarget), typeof(object)); | ||
|
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| dynProxyGetTarget.CodeBuilder.AddStatement( | ||
| new ReturnStatement(new ConvertExpression(typeof(object), targetType, targetReference.ToExpression()))); | ||
|
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| var dynProxySetTarget = emitter.CreateMethod(nameof(IProxyTargetAccessor.DynProxySetTarget), typeof(void), typeof(object)); | ||
|
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| // we can only change the target of the interface proxy | ||
| if (targetReference is FieldReference targetField) | ||
| { | ||
| dynProxySetTarget.CodeBuilder.AddStatement( | ||
| new AssignStatement(targetField, | ||
| new ConvertExpression(targetField.Fieldbuilder.FieldType, dynProxySetTarget.Arguments[0].ToExpression()))); | ||
| } | ||
| else | ||
| { | ||
| dynProxySetTarget.CodeBuilder.AddStatement( | ||
| new ThrowStatement(typeof(InvalidOperationException), "Cannot change the target of the class proxy.")); | ||
| } | ||
|
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| dynProxySetTarget.CodeBuilder.AddStatement(new ReturnStatement()); | ||
|
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| var getInterceptors = emitter.CreateMethod(nameof(IProxyTargetAccessor.GetInterceptors), typeof(IInterceptor[])); | ||
|
|
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| getInterceptors.CodeBuilder.AddStatement( | ||
| new ReturnStatement(interceptorsField)); | ||
| } | ||
| } | ||
| } |
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