98 lines
No EOL
3 KiB
C#
98 lines
No EOL
3 KiB
C#
#if NON_UNITY || !NET_STANDARD_2_0
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using System;
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using System.Reflection;
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using System.Reflection.Emit;
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using System.Runtime.CompilerServices;
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namespace MagicOnion.Utils
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{
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#if ENABLE_SAVE_ASSEMBLY
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public
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#else
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internal
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#endif
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class DynamicAssembly
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{
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readonly object gate = new object();
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#if ENABLE_SAVE_ASSEMBLY
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readonly string moduleName;
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#endif
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readonly AssemblyBuilder assemblyBuilder;
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readonly ModuleBuilder moduleBuilder;
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// don't expose ModuleBuilder(should use lock)
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// public ModuleBuilder ModuleBuilder { get { return moduleBuilder; } }
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public DynamicAssembly(string moduleName)
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{
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#if ENABLE_SAVE_ASSEMBLY
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this.moduleName = moduleName;
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this.assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName(moduleName), AssemblyBuilderAccess.RunAndSave);
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this.moduleBuilder = assemblyBuilder.DefineDynamicModule(moduleName, moduleName + ".dll");
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#else
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this.assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName(moduleName), AssemblyBuilderAccess.Run);
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this.moduleBuilder = assemblyBuilder.DefineDynamicModule(moduleName);
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#endif
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// HACK: Allow access to `internal` classes from dynamically generated assembly.
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// https://www.strathweb.com/2018/10/no-internalvisibleto-no-problem-bypassing-c-visibility-rules-with-roslyn/
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var ignoreAccessChecksTo = new CustomAttributeBuilder(typeof(IgnoresAccessChecksToAttribute).GetConstructor(new[] {typeof(string)}), new []{ "MagicOnion" });
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this.assemblyBuilder.SetCustomAttribute(ignoreAccessChecksTo);
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}
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// requires lock on mono environment(for example, UnityEditor). see: https://github.com/neuecc/MessagePack-CSharp/issues/161
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public TypeBuilder DefineType(string name, TypeAttributes attr)
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{
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lock (gate)
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{
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return moduleBuilder.DefineType(name, attr);
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}
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}
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public TypeBuilder DefineType(string name, TypeAttributes attr, Type parent)
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{
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lock (gate)
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{
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return moduleBuilder.DefineType(name, attr, parent);
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}
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}
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public TypeBuilder DefineType(string name, TypeAttributes attr, Type parent, Type[] interfaces)
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{
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lock (gate)
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{
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return moduleBuilder.DefineType(name, attr, parent, interfaces);
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}
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}
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#if ENABLE_SAVE_ASSEMBLY
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public AssemblyBuilder Save()
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{
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assemblyBuilder.Save(moduleName + ".dll");
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return assemblyBuilder;
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}
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#endif
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}
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}
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namespace System.Runtime.CompilerServices
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{
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[AttributeUsage(AttributeTargets.Assembly, AllowMultiple = true)]
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internal class IgnoresAccessChecksToAttribute : Attribute
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{
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public IgnoresAccessChecksToAttribute(string assemblyName)
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{
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AssemblyName = assemblyName;
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}
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public string AssemblyName { get; }
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}
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}
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#endif |