644 lines
26 KiB
C#
644 lines
26 KiB
C#
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#if UNITY_EDITOR
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Globalization;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.CompilerServices;
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using Unity.Jobs.LowLevel.Unsafe;
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using UnityEditor;
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using UnityEditor.Compilation;
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using Debug = UnityEngine.Debug;
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[assembly: InternalsVisibleTo("Unity.Burst.Editor.Tests")]
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namespace Unity.Burst.Editor
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{
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using static BurstCompilerOptions;
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internal static class BurstReflection
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{
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// The TypeCache API was added in 2019.2. So there are two versions of FindExecuteMethods,
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// one that uses TypeCache and one that doesn't.
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public static FindExecuteMethodsResult FindExecuteMethods(List<System.Reflection.Assembly> assemblyList, BurstReflectionAssemblyOptions options)
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{
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var methodsToCompile = new List<BurstCompileTarget>();
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var methodsToCompileSet = new HashSet<MethodInfo>();
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var logMessages = new List<LogMessage>();
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var interfaceToProducer = new Dictionary<Type, Type>();
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var assemblySet = new HashSet<System.Reflection.Assembly>(assemblyList);
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void AddTarget(BurstCompileTarget target)
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{
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if (target.Method.Name.EndsWith("$BurstManaged")) return;
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// We will not try to record more than once a method in the methods to compile
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// This can happen if a job interface is inheriting from another job interface which are using in the end the same
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// job producer type
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if (!target.IsStaticMethod && !methodsToCompileSet.Add(target.Method))
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{
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return;
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}
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if (options.HasFlag(BurstReflectionAssemblyOptions.ExcludeTestAssemblies) &&
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target.JobType.Assembly.GetReferencedAssemblies().Any(x => IsNUnitDll(x.Name)))
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{
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return;
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}
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methodsToCompile.Add(target);
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}
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var staticMethodTypes = new HashSet<Type>();
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// -------------------------------------------
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// Find job structs using TypeCache.
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// -------------------------------------------
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var jobProducerImplementations = TypeCache.GetTypesWithAttribute<JobProducerTypeAttribute>();
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foreach (var jobProducerImplementation in jobProducerImplementations)
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{
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var attrs = jobProducerImplementation.GetCustomAttributes(typeof(JobProducerTypeAttribute), false);
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if (attrs.Length == 0)
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{
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continue;
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}
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staticMethodTypes.Add(jobProducerImplementation);
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var attr = (JobProducerTypeAttribute)attrs[0];
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interfaceToProducer.Add(jobProducerImplementation, attr.ProducerType);
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}
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foreach (var jobProducerImplementation in jobProducerImplementations)
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{
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if (!jobProducerImplementation.IsInterface)
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{
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continue;
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}
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var jobTypes = TypeCache.GetTypesDerivedFrom(jobProducerImplementation);
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foreach (var jobType in jobTypes)
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{
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if (jobType.IsGenericType || !jobType.IsValueType)
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{
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continue;
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}
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ScanJobType(jobType, interfaceToProducer, logMessages, AddTarget);
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}
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}
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// -------------------------------------------
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// Find static methods using TypeCache.
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// -------------------------------------------
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void AddStaticMethods(TypeCache.MethodCollection methods)
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{
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foreach (var method in methods)
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{
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if (HasBurstCompileAttribute(method.DeclaringType))
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{
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staticMethodTypes.Add(method.DeclaringType);
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// NOTE: Make sure that we don't use a value type generic definition (e.g `class Outer<T> { struct Inner { } }`)
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// We are only working on plain type or generic type instance!
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if (!method.DeclaringType.IsGenericTypeDefinition &&
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method.IsStatic &&
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!method.ContainsGenericParameters)
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{
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AddTarget(new BurstCompileTarget(method, method.DeclaringType, null, true));
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}
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}
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}
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}
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// Add [BurstCompile] static methods.
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AddStaticMethods(TypeCache.GetMethodsWithAttribute<BurstCompileAttribute>());
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// Add [TestCompiler] static methods.
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if (!options.HasFlag(BurstReflectionAssemblyOptions.ExcludeTestAssemblies))
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{
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var testCompilerAttributeType = Type.GetType("Burst.Compiler.IL.Tests.TestCompilerAttribute, Unity.Burst.Tests.UnitTests, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null");
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if (testCompilerAttributeType != null)
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{
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AddStaticMethods(TypeCache.GetMethodsWithAttribute(testCompilerAttributeType));
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}
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}
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// -------------------------------------------
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// Find job types and static methods based on
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// generic instances types. These will not be
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// found by the TypeCache scanning above.
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// -------------------------------------------
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FindExecuteMethodsForGenericInstances(
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assemblySet,
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staticMethodTypes,
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interfaceToProducer,
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AddTarget,
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logMessages);
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return new FindExecuteMethodsResult(methodsToCompile, logMessages);
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}
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private static void ScanJobType(
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Type jobType,
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Dictionary<Type, Type> interfaceToProducer,
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List<LogMessage> logMessages,
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Action<BurstCompileTarget> addTarget)
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{
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foreach (var interfaceType in jobType.GetInterfaces())
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{
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var genericLessInterface = interfaceType;
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if (interfaceType.IsGenericType)
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{
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genericLessInterface = interfaceType.GetGenericTypeDefinition();
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}
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if (interfaceToProducer.TryGetValue(genericLessInterface, out var foundProducer))
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{
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var genericParams = new List<Type> { jobType };
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if (interfaceType.IsGenericType)
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{
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genericParams.AddRange(interfaceType.GenericTypeArguments);
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}
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try
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{
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var executeType = foundProducer.MakeGenericType(genericParams.ToArray());
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var executeMethod = executeType.GetMethod("Execute", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static);
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if (executeMethod == null)
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{
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throw new InvalidOperationException($"Burst reflection error. The type `{executeType}` does not contain an `Execute` method");
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}
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addTarget(new BurstCompileTarget(executeMethod, jobType, interfaceType, false));
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}
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catch (Exception ex)
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{
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logMessages.Add(new LogMessage(ex));
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}
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}
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}
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}
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private static void FindExecuteMethodsForGenericInstances(
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HashSet<System.Reflection.Assembly> assemblyList,
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HashSet<Type> staticMethodTypes,
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Dictionary<Type, Type> interfaceToProducer,
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Action<BurstCompileTarget> addTarget,
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List<LogMessage> logMessages)
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{
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var valueTypes = new List<TypeToVisit>();
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//Debug.Log("Filtered Assembly List: " + string.Join(", ", assemblyList.Select(assembly => assembly.GetName().Name)));
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// Find all ways to execute job types (via producer attributes)
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var typesVisited = new HashSet<string>();
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var typesToVisit = new HashSet<string>();
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var allTypesAssembliesCollected = new HashSet<Type>();
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foreach (var assembly in assemblyList)
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{
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var types = new List<Type>();
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try
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{
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// Collect all generic type instances (excluding indirect instances)
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CollectGenericTypeInstances(
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assembly,
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x => assemblyList.Contains(x.Assembly),
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types,
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allTypesAssembliesCollected);
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}
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catch (Exception ex)
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{
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logMessages.Add(new LogMessage(LogType.Warning, "Unexpected exception while collecting types in assembly `" + assembly.FullName + "` Exception: " + ex));
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}
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for (var i = 0; i < types.Count; i++)
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{
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var t = types[i];
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if (typesToVisit.Add(t.AssemblyQualifiedName))
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{
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// Because the list of types returned by CollectGenericTypeInstances does not detect nested generic classes that are not
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// used explicitly, we need to create them if a declaring type is actually used
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// so for example if we have:
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// class MyClass<T> { class MyNestedClass { } }
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// class MyDerived : MyClass<int> { }
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// The CollectGenericTypeInstances will return typically the type MyClass<int>, but will not list MyClass<int>.MyNestedClass
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// So the following code is correcting this in order to fully query the full graph of generic instance types, including indirect types
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var nestedTypes = t.GetNestedTypes(BindingFlags.Public | BindingFlags.NonPublic);
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foreach (var nestedType in nestedTypes)
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{
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if (t.IsGenericType && !t.IsGenericTypeDefinition)
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{
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var parentGenericTypeArguments = t.GetGenericArguments();
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// Only create nested types that are closed generic types (full generic instance types)
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// It happens if for example the parent class is `class MClass<T> { class MyNestedGeneric<T1> {} }`
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// In that case, MyNestedGeneric<T1> is opened in the context of MClass<int>, so we don't process them
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if (nestedType.GetGenericArguments().Length == parentGenericTypeArguments.Length)
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{
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try
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{
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var instanceNestedType = nestedType.MakeGenericType(parentGenericTypeArguments);
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types.Add(instanceNestedType);
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}
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catch (Exception ex)
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{
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var error = $"Unexpected Burst Inspector error. Invalid generic type instance. Trying to instantiate the generic type {nestedType.FullName} with the generic arguments <{string.Join(", ", parentGenericTypeArguments.Select(x => x.FullName))}> is not supported: {ex}";
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logMessages.Add(new LogMessage(LogType.Warning, error));
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}
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}
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}
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else
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{
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types.Add(nestedType);
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}
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}
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}
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}
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foreach (var t in types)
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{
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// If the type has been already visited, don't try to visit it
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if (!typesVisited.Add(t.AssemblyQualifiedName) || (t.IsGenericTypeDefinition && !t.IsInterface))
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{
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continue;
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}
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try
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{
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// collect methods with types having a [BurstCompile] attribute
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var staticMethodDeclaringType = t;
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if (t.IsGenericType)
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{
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staticMethodDeclaringType = t.GetGenericTypeDefinition();
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}
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bool visitStaticMethods = staticMethodTypes.Contains(staticMethodDeclaringType);
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bool isValueType = false;
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if (t.IsValueType)
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{
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// NOTE: Make sure that we don't use a value type generic definition (e.g `class Outer<T> { struct Inner { } }`)
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// We are only working on plain type or generic type instance!
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if (!t.IsGenericTypeDefinition)
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isValueType = true;
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}
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if (isValueType || visitStaticMethods)
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{
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valueTypes.Add(new TypeToVisit(t, visitStaticMethods));
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}
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}
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catch (Exception ex)
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{
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logMessages.Add(new LogMessage(LogType.Warning,
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"Unexpected exception while inspecting type `" + t +
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"` IsConstructedGenericType: " + t.IsConstructedGenericType +
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" IsGenericTypeDef: " + t.IsGenericTypeDefinition +
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" IsGenericParam: " + t.IsGenericParameter +
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" Exception: " + ex));
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}
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}
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}
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// Revisit all types to find things that are compilable using the above producers.
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foreach (var typePair in valueTypes)
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{
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var type = typePair.Type;
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// collect static [BurstCompile] methods
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if (typePair.CollectStaticMethods)
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{
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try
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{
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var methods = type.GetMethods(BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
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foreach (var method in methods)
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{
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if (HasBurstCompileAttribute(method))
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{
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addTarget(new BurstCompileTarget(method, type, null, true));
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}
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}
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}
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catch (Exception ex)
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{
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logMessages.Add(new LogMessage(ex));
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}
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}
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// If the type is not a value type, we don't need to proceed with struct Jobs
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if (!type.IsValueType)
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{
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continue;
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}
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ScanJobType(type, interfaceToProducer, logMessages, addTarget);
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}
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}
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public sealed class FindExecuteMethodsResult
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{
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public readonly List<BurstCompileTarget> CompileTargets;
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public readonly List<LogMessage> LogMessages;
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public FindExecuteMethodsResult(List<BurstCompileTarget> compileTargets, List<LogMessage> logMessages)
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{
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CompileTargets = compileTargets;
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LogMessages = logMessages;
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}
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}
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public sealed class LogMessage
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{
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public readonly LogType LogType;
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public readonly string Message;
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public readonly Exception Exception;
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public LogMessage(LogType logType, string message)
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{
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LogType = logType;
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Message = message;
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}
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public LogMessage(Exception exception)
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{
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LogType = LogType.Exception;
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Exception = exception;
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}
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}
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public enum LogType
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{
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Warning,
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Exception,
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}
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/// <summary>
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/// This method exists solely to ensure that the static constructor has been called.
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/// </summary>
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public static void EnsureInitialized() { }
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public static readonly List<System.Reflection.Assembly> EditorAssembliesThatCanPossiblyContainJobs;
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public static readonly List<System.Reflection.Assembly> EditorAssembliesThatCanPossiblyContainJobsExcludingTestAssemblies;
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/// <summary>
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/// Collects (and caches) all editor assemblies - transitively.
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/// </summary>
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static BurstReflection()
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{
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|
|
EditorAssembliesThatCanPossiblyContainJobs = new List<System.Reflection.Assembly>();
|
||
|
|
EditorAssembliesThatCanPossiblyContainJobsExcludingTestAssemblies = new List<System.Reflection.Assembly>();
|
||
|
|
|
||
|
|
// TODO: Not sure there is a better way to match assemblies returned by CompilationPipeline.GetAssemblies
|
||
|
|
// with runtime assemblies contained in the AppDomain.CurrentDomain.GetAssemblies()
|
||
|
|
|
||
|
|
// Filter the assemblies
|
||
|
|
var assemblyList = CompilationPipeline.GetAssemblies(AssembliesType.Editor);
|
||
|
|
|
||
|
|
var assemblyNames = new HashSet<string>();
|
||
|
|
foreach (var assembly in assemblyList)
|
||
|
|
{
|
||
|
|
CollectAssemblyNames(assembly, assemblyNames);
|
||
|
|
}
|
||
|
|
|
||
|
|
var allAssemblies = new HashSet<System.Reflection.Assembly>();
|
||
|
|
foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
|
||
|
|
{
|
||
|
|
if (!assemblyNames.Contains(assembly.GetName().Name))
|
||
|
|
{
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
CollectAssembly(assembly, allAssemblies);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// For an assembly to contain something "interesting" when we're scanning for things to compile,
|
||
|
|
// it needs to either:
|
||
|
|
// (a) be one of these assemblies, or
|
||
|
|
// (b) reference one of these assemblies
|
||
|
|
private static readonly string[] ScanMarkerAssemblies = new[]
|
||
|
|
{
|
||
|
|
// Contains [BurstCompile] attribute
|
||
|
|
"Unity.Burst",
|
||
|
|
|
||
|
|
// Contains [JobProducerType] attribute
|
||
|
|
"UnityEngine.CoreModule"
|
||
|
|
};
|
||
|
|
|
||
|
|
private static void CollectAssembly(System.Reflection.Assembly assembly, HashSet<System.Reflection.Assembly> collect)
|
||
|
|
{
|
||
|
|
if (!collect.Add(assembly))
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var referencedAssemblies = assembly.GetReferencedAssemblies();
|
||
|
|
|
||
|
|
var shouldCollectReferences = false;
|
||
|
|
|
||
|
|
var name = assembly.GetName().Name;
|
||
|
|
if (ScanMarkerAssemblies.Contains(name) || referencedAssemblies.Any(x => ScanMarkerAssemblies.Contains(x.Name)))
|
||
|
|
{
|
||
|
|
EditorAssembliesThatCanPossiblyContainJobs.Add(assembly);
|
||
|
|
shouldCollectReferences = true;
|
||
|
|
|
||
|
|
if (!assembly.GetReferencedAssemblies().Any(x => IsNUnitDll(x.Name)))
|
||
|
|
{
|
||
|
|
EditorAssembliesThatCanPossiblyContainJobsExcludingTestAssemblies.Add(assembly);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!shouldCollectReferences)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach (var assemblyName in referencedAssemblies)
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
CollectAssembly(System.Reflection.Assembly.Load(assemblyName), collect);
|
||
|
|
}
|
||
|
|
catch (Exception)
|
||
|
|
{
|
||
|
|
if (BurstLoader.IsDebugging)
|
||
|
|
{
|
||
|
|
Debug.LogWarning("Could not load assembly " + assemblyName);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private static bool IsNUnitDll(string value)
|
||
|
|
{
|
||
|
|
return CultureInfo.InvariantCulture.CompareInfo.IndexOf(value, "nunit.framework") >= 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
private static void CollectAssemblyNames(UnityEditor.Compilation.Assembly assembly, HashSet<string> collect)
|
||
|
|
{
|
||
|
|
if (assembly == null || assembly.name == null) return;
|
||
|
|
|
||
|
|
if (!collect.Add(assembly.name))
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach (var assemblyRef in assembly.assemblyReferences)
|
||
|
|
{
|
||
|
|
CollectAssemblyNames(assemblyRef, collect);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the list of concrete generic type instances used in an assembly.
|
||
|
|
/// See remarks
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="assembly">The assembly</param>
|
||
|
|
/// <param name="types"></param>
|
||
|
|
/// <returns>The list of generic type instances</returns>
|
||
|
|
/// <remarks>
|
||
|
|
/// Note that this method fetchs only direct type instances but
|
||
|
|
/// cannot fetch transitive generic type instances.
|
||
|
|
/// </remarks>
|
||
|
|
private static void CollectGenericTypeInstances(
|
||
|
|
System.Reflection.Assembly assembly,
|
||
|
|
Func<Type, bool> typeFilter,
|
||
|
|
List<Type> types,
|
||
|
|
HashSet<Type> visited)
|
||
|
|
{
|
||
|
|
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
|
||
|
|
// WARNING: THIS CODE HAS TO BE MAINTAINED IN SYNC WITH BclApp.cs
|
||
|
|
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
|
||
|
|
|
||
|
|
// From: https://gist.github.com/xoofx/710aaf86e0e8c81649d1261b1ef9590e
|
||
|
|
if (assembly == null) throw new ArgumentNullException(nameof(assembly));
|
||
|
|
const int mdMaxCount = 1 << 24;
|
||
|
|
foreach (var module in assembly.Modules)
|
||
|
|
{
|
||
|
|
for (int i = 1; i < mdMaxCount; i++)
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
// Token base id for TypeSpec
|
||
|
|
const int mdTypeSpec = 0x1B000000;
|
||
|
|
var type = module.ResolveType(mdTypeSpec | i);
|
||
|
|
CollectGenericTypeInstances(type, types, visited, typeFilter);
|
||
|
|
}
|
||
|
|
catch (ArgumentOutOfRangeException)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
catch (ArgumentException)
|
||
|
|
{
|
||
|
|
// Can happen on ResolveType on certain generic types, so we continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (int i = 1; i < mdMaxCount; i++)
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
// Token base id for MethodSpec
|
||
|
|
const int mdMethodSpec = 0x2B000000;
|
||
|
|
var method = module.ResolveMethod(mdMethodSpec | i);
|
||
|
|
var genericArgs = method.GetGenericArguments();
|
||
|
|
foreach (var genArgType in genericArgs)
|
||
|
|
{
|
||
|
|
CollectGenericTypeInstances(genArgType, types, visited, typeFilter);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
catch (ArgumentOutOfRangeException)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
catch (ArgumentException)
|
||
|
|
{
|
||
|
|
// Can happen on ResolveType on certain generic types, so we continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (int i = 1; i < mdMaxCount; i++)
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
// Token base id for Field
|
||
|
|
const int mdField = 0x04000000;
|
||
|
|
var field = module.ResolveField(mdField | i);
|
||
|
|
CollectGenericTypeInstances(field.FieldType, types, visited, typeFilter);
|
||
|
|
}
|
||
|
|
catch (ArgumentOutOfRangeException)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
catch (ArgumentException)
|
||
|
|
{
|
||
|
|
// Can happen on ResolveType on certain generic types, so we continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Scan for types used in constructor arguments to assembly-level attributes,
|
||
|
|
// such as [RegisterGenericJobType(typeof(...))].
|
||
|
|
foreach (var customAttribute in assembly.CustomAttributes)
|
||
|
|
{
|
||
|
|
foreach (var argument in customAttribute.ConstructorArguments)
|
||
|
|
{
|
||
|
|
if (argument.ArgumentType == typeof(Type))
|
||
|
|
{
|
||
|
|
CollectGenericTypeInstances((Type)argument.Value, types, visited, typeFilter);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private static void CollectGenericTypeInstances(
|
||
|
|
Type type,
|
||
|
|
List<Type> types,
|
||
|
|
HashSet<Type> visited,
|
||
|
|
Func<Type, bool> typeFilter)
|
||
|
|
{
|
||
|
|
if (type.IsPrimitive) return;
|
||
|
|
if (!visited.Add(type)) return;
|
||
|
|
|
||
|
|
// Add only concrete types
|
||
|
|
if (type.IsConstructedGenericType && !type.ContainsGenericParameters && typeFilter(type))
|
||
|
|
{
|
||
|
|
types.Add(type);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Collect recursively generic type arguments
|
||
|
|
var genericTypeArguments = type.GenericTypeArguments;
|
||
|
|
foreach (var genericTypeArgument in genericTypeArguments)
|
||
|
|
{
|
||
|
|
if (!genericTypeArgument.IsPrimitive)
|
||
|
|
{
|
||
|
|
CollectGenericTypeInstances(genericTypeArgument, types, visited, typeFilter);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
[DebuggerDisplay("{Type} (static methods: {CollectStaticMethods})")]
|
||
|
|
private struct TypeToVisit
|
||
|
|
{
|
||
|
|
public TypeToVisit(Type type, bool collectStaticMethods)
|
||
|
|
{
|
||
|
|
Type = type;
|
||
|
|
CollectStaticMethods = collectStaticMethods;
|
||
|
|
}
|
||
|
|
|
||
|
|
public readonly Type Type;
|
||
|
|
|
||
|
|
public readonly bool CollectStaticMethods;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
[Flags]
|
||
|
|
internal enum BurstReflectionAssemblyOptions
|
||
|
|
{
|
||
|
|
None = 0,
|
||
|
|
ExcludeTestAssemblies = 1,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|