public static List <FieldReference> ImportReferencesIntoAndMakeFieldPathPublic(this IEnumerable <FieldReference> fieldPath, AssemblyDefinition asm)
{
var importedFields = new List <FieldReference>();
foreach (var field in fieldPath)
{
var importedField = field.ImportReferenceInto(asm);
if (field.DeclaringType.HasGenericParameters)
{
importedField = TypeRegGen.MakeGenericFieldSpecialization(importedField, field.DeclaringType.GenericParameters.ToArray());
}
importedFields.Add(importedField);
var fieldDef = field.Resolve();
fieldDef.IsPublic = true;
// According to the C# Standard https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/compiler-messages/cs0052
// Fields must have the same access level as their declared field access level so when we mark something
// as being public we need to also make sure the generic params type within this field has the same access.
// level which in this case is public
if (fieldDef.FieldType is GenericInstanceType g)
{
foreach (var parm in g.GenericArguments)
{
var resolveType = parm.Resolve();
if (resolveType != null && !resolveType.IsPublic)
{
resolveType.IsPublic = true;
if (resolveType.IsNested)
{
resolveType.IsNestedPublic = true;
}
}
}
}
if (field.DeclaringType != null)
{
var d = field.DeclaringType.Resolve();
d.IsPublic = true;
if (d.IsNested)
{
d.IsNestedPublic = true;
}
}
}
return(importedFields);
}
/// Generates the outer, non-burstable method that calls the inner Execute_Gen.
///
/// JobTyping_System and JobTyping_Query (in TestExecuteGen) show the source
/// code template this IL is based on.
///
/// Tries to remove as many generics as possible, and only instance types
/// are passed to the Execute/Execute_Gen
///
/// <param name="isQuery">If true, this uses the variant that has an EntityQuery as a parameter.
/// If false, expects a ComponentSystem as a parameter.</param>
/// <param name="usesEntity">If true, the Entity and Index will be passed to the Execute.</param>
public MethodDefinition GenOuterMethod(string methodName,
AssemblyDefinition asm,
TypeDefinition jobStruct,
MethodDefinition generatedExecute,
List <ParameterDefinition> executeParams,
bool isQuery,
bool usesEntity)
{
var zeroJobsAssembly = m_assemblies.First(a => a.Name.Name == "Unity.ZeroJobs");
var jobHandleDef = zeroJobsAssembly.MainModule.Types.First(i => i.FullName == "Unity.Jobs.JobHandle");
var jobHandleRef = asm.MainModule.ImportReference(jobHandleDef);
var entityDef = m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.Entity");
var entityManagerDef =
m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.EntityManager");
var worldDef = m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.World");
var getActiveWorldFnDef = worldDef.Methods.First(i => i.Name == "get_Active");
var getEntityManagerFnDef = worldDef.Methods.First(i => i.Name == "get_EntityManager");
var getManagerACCCTypeFnRef = asm.MainModule.ImportReference(entityManagerDef.Methods.First(i => i.Name == "GetArchetypeChunkComponentType"));
MethodDefinition getManagerArchetypeChunkEntityTypeFnDef =
entityManagerDef.Methods.First(i => i.Name == "GetArchetypeChunkEntityType");
MethodReference getManagerArchetypeChunkEntityTypeFnRef =
asm.MainModule.ImportReference(getManagerArchetypeChunkEntityTypeFnDef);
var componentTypeDef =
m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.ComponentType");
var componentTypeRef = asm.MainModule.ImportReference(componentTypeDef);
var openReadWriteRef = asm.MainModule.ImportReference(
componentTypeDef.Methods.First(i => i.Name == "ReadWrite" && i.GenericParameters.Count == 1));
var openReadOnlyRef = asm.MainModule.ImportReference(
componentTypeDef.Methods.First(i => i.Name == "ReadOnly" && i.GenericParameters.Count == 1));
var openExcludeRef = asm.MainModule.ImportReference(
componentTypeDef.Methods.First(i => i.Name == "Exclude" && i.GenericParameters.Count == 1));
var componentSystemDef =
m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.ComponentSystem");
var componentSystemRef = asm.MainModule.ImportReference(componentSystemDef);
var entityQueryDef =
m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.EntityQuery");
var entityQueryRef = asm.MainModule.ImportReference(entityQueryDef);
// Unity.Entities.ComponentSystemBase.GetArchetypeChunkComponentType
var componentSystemBaseDef =
m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.ComponentSystemBase");
var componentSystemBaseRef = asm.MainModule.ImportReference(componentSystemBaseDef);
var getSystemACCCTypeFnRef = asm.MainModule.ImportReference(componentSystemBaseDef.Methods.First(i => i.Name == "GetArchetypeChunkComponentType"));
// Unity.Entities.ComponentSystemBase.GetArchetypeChunkEntityType
MethodDefinition getSystemArchetypeChunkEntityTypeFnDef =
componentSystemBaseDef.Methods.First(i => i.Name == "GetArchetypeChunkEntityType");
MethodReference getSystemArchetypeChunkEntityTypeFnRef =
asm.MainModule.ImportReference(getSystemArchetypeChunkEntityTypeFnDef);
var archetypeChunkEntityTypeDef =
m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.ArchetypeChunkEntityType");
var archetypeChunkEntityTypeRef = asm.MainModule.ImportReference(archetypeChunkEntityTypeDef);
// Unity.Entities.ComponentSystemBase.GetEntityQueryInternal(ComponentType* componentTypes, int count)
var getEntityQueryInternalFnDef = componentSystemBaseDef.Methods.First(i =>
i.Name == "GetEntityQueryInternal" &&
i.Parameters.Count == 2);
getEntityQueryInternalFnDef.IsPublic = true;
var archetypeChunkDef =
m_entityAssembly.MainModule.Types.First(i => i.FullName == "Unity.Entities.ArchetypeChunk");
// Unity.Jobs.JobHandle.Complete
MethodDefinition completeFnDef = jobHandleDef.Methods.First(n => n.FullName == "System.Void Unity.Jobs.JobHandle::Complete()");
// Unity.Entities.ArchetypeChunk.GetNativeArray
var getNativeArrayFnRef = asm.MainModule.ImportReference(archetypeChunkDef.Methods.First(m => m.Name == "GetNativeArray" && m.HasGenericParameters));
MethodDefinition getNativeEntityArrayFnDef =
archetypeChunkDef.Methods.First(m => m.Name == "GetNativeArray" && !m.HasGenericParameters);
var getNativeEntityArrayFnRef = asm.MainModule.ImportReference(getNativeEntityArrayFnDef);
var nativeArrayUnsafeUtilityDef = m_zeroJobsAssembly.MainModule.Types.First(i =>
i.FullName == "Unity.Collections.LowLevel.Unsafe.NativeArrayUnsafeUtility");
var unsafePtrFnRef = asm.MainModule.ImportReference(nativeArrayUnsafeUtilityDef.Methods.First(i => i.Name == "GetUnsafePtr"));
var unsafeReadOnlyPtrFnRef = asm.MainModule.ImportReference(nativeArrayUnsafeUtilityDef.Methods.First(i => i.Name == "GetUnsafeReadOnlyPtr"));
MethodDefinition getUnsafeReadOnlyPtrFnDef =
nativeArrayUnsafeUtilityDef.Methods.First(i => i.Name == "GetUnsafeReadOnlyPtr");
// Unity.Entities.EntityQuery.CreateArchetypeChunkArray
var createArchetypeChunkArrayFnDef =
entityQueryDef.Methods.First(i => i.Name == "CreateArchetypeChunkArray" && i.Parameters.Count == 1);
TypeDefinition openNativeArrayDef =
m_zeroJobsAssembly.MainModule.Types.First(i => i.FullName == "Unity.Collections.NativeArray`1");
MethodDefinition scheduleMethodDef = jobStruct.Methods.First(n => n.Name == InterfaceGen.PrepareJobAtScheduleTimeFn);
MethodDefinition executeMethodDef = jobStruct.Methods.First(n => n.Name == InterfaceGen.PrepareJobAtExecuteTimeFn);
MethodDefinition cleanupMethodDef = jobStruct.Methods.First(n => n.Name == InterfaceGen.CleanupJobFn);
// Unity.Collections.NativeArray.Dispose
MethodDefinition disposeFnDef = openNativeArrayDef.Methods.First(m => m.Name == "Dispose");
var getLengthFnDef = openNativeArrayDef.Methods.First(m => m.Name == "get_Length");
var getLengthFnRef =
asm.MainModule.ImportReference(getLengthFnDef.MakeHostInstanceGeneric(archetypeChunkDef));
var getItemFnDef = openNativeArrayDef.Methods.First(m => m.Name == "get_Item");
var getItemFnRef = asm.MainModule.ImportReference(getItemFnDef.MakeHostInstanceGeneric(archetypeChunkDef));
var getCountFnDef = archetypeChunkDef.Methods.First(m => m.Name == "get_Count");
var getCountFnRef = asm.MainModule.ImportReference(getCountFnDef);
var method = new MethodDefinition(methodName,
MethodAttributes.Static | MethodAttributes.Public | MethodAttributes.HideBySig, jobHandleRef);
// -------- Parameters ---------
var paramJob = new ParameterDefinition("job", ParameterAttributes.None,
asm.MainModule.ImportReference(jobStruct));
method.Parameters.Add(paramJob);
ParameterDefinition paramSystem = null;
ParameterDefinition paramQuery = null;
if (isQuery)
{
paramQuery = new ParameterDefinition("query", ParameterAttributes.None, entityQueryRef);
method.Parameters.Add(paramQuery);
}
else
{
paramSystem = new ParameterDefinition("system", ParameterAttributes.None, componentSystemBaseRef);
method.Parameters.Add(paramSystem);
}
var paramJobHandle = new ParameterDefinition("dependsOn",
ParameterAttributes.Optional | ParameterAttributes.HasDefault, jobHandleRef);
method.Parameters.Add(paramJobHandle);
paramJobHandle.Constant = new ParameterDefinition(asm.MainModule.ImportReference(typeof(Nullable)));
// -------- Variables -----------
VariableDefinition vEntityManager = null;
if (isQuery)
{
vEntityManager = new VariableDefinition(asm.MainModule.ImportReference(entityManagerDef));
method.Body.Variables.Add(vEntityManager);
}
var vDelegateTypePtr =
new VariableDefinition(asm.MainModule.ImportReference(componentTypeDef.MakePointerType()));
if (!isQuery)
{
method.Body.Variables.Add(vDelegateTypePtr);
}
var vEntityQuery = new VariableDefinition(entityQueryRef);
method.Body.Variables.Add(vEntityQuery);
VariableDefinition vEntityType = null;
if (usesEntity)
{
vEntityType = new VariableDefinition(archetypeChunkEntityTypeRef);
method.Body.Variables.Add(vEntityType);
}
var openArchetypeCCTRef =
asm.MainModule.ImportReference(m_entityAssembly.MainModule.Types.First(i =>
i.FullName == "Unity.Entities.ArchetypeChunkComponentType`1"));
List <VariableDefinition> vChunkComponentType = new List <VariableDefinition>();
for (int i = 0; i < executeParams.Count; ++i)
{
var param = executeParams[i].ParameterType.GetElementType();
if (param.Module != asm.MainModule)
{
asm.MainModule.ImportReference(param);
}
var special = openArchetypeCCTRef.MakeGenericInstanceType(param);
var vd = new VariableDefinition(special);
vChunkComponentType.Add(vd);
method.Body.Variables.Add(vd);
}
var archetypeNativeArray = openNativeArrayDef.MakeGenericInstanceType(archetypeChunkDef);
TypeReference archetypeNativeArrayRef = asm.MainModule.ImportReference(archetypeNativeArray);
var vChunks = new VariableDefinition(archetypeNativeArrayRef);
method.Body.Variables.Add(vChunks);
var vJ = new VariableDefinition(asm.MainModule.ImportReference(typeof(int)));
method.Body.Variables.Add(vJ);
var vChunkCount = new VariableDefinition(asm.MainModule.ImportReference(typeof(int)));
method.Body.Variables.Add(vChunkCount);
var vChunk = new VariableDefinition(asm.MainModule.ImportReference(archetypeChunkDef));
method.Body.Variables.Add(vChunk);
VariableDefinition vEntityArray = null;
if (usesEntity)
{
vEntityArray = new VariableDefinition(asm.MainModule.ImportReference(entityDef.MakePointerType()));
method.Body.Variables.Add(vEntityArray);
}
List <VariableDefinition> vArray = new List <VariableDefinition>();
for (int i = 0; i < executeParams.Count; ++i)
{
var vd = new VariableDefinition(asm.MainModule.ImportReference(typeof(void *)));
vArray.Add(vd);
method.Body.Variables.Add(vd);
}
var vJobHandle = new VariableDefinition(jobHandleRef);
method.Body.Variables.Add(vJobHandle);
method.Body.InitLocals = true;
var bc = method.Body.Instructions;
// -------- Body -----------
// dependsOn.Complete(); // Until proper jobs are supported, use this to make sure we've flushed out previous work.
bc.Add(Instruction.Create(OpCodes.Ldarga, paramJobHandle));
bc.Add(Instruction.Create(OpCodes.Call, asm.MainModule.ImportReference(completeFnDef)));
// ScheduleJob_Gen()
bc.Add(Instruction.Create(OpCodes.Ldarga, paramJob));
bc.Add(Instruction.Create(OpCodes.Conv_U));
bc.Add(Instruction.Create(OpCodes.Call, asm.MainModule.ImportReference(scheduleMethodDef)));
bc.Add(Instruction.Create(OpCodes.Pop)); // The return code does nothing here. In other jobs code,
// the expected return code is used to validate the generated
// code was called and is working correctly.
// ExecuteJob_Gen(0)
bc.Add(Instruction.Create(OpCodes.Ldarga, paramJob));
bc.Add(Instruction.Create(OpCodes.Conv_U));
bc.Add(Instruction.Create(OpCodes.Ldc_I4_0));
bc.Add(Instruction.Create(OpCodes.Call, asm.MainModule.ImportReference(executeMethodDef)));
if (isQuery)
{
// entityQuery = _query
bc.Add(Instruction.Create(OpCodes.Ldarg, paramQuery));
bc.Add(Instruction.Create(OpCodes.Stloc, vEntityQuery));
// EntityManager entityManager = World.Active.EntityManager;
bc.Add(Instruction.Create(OpCodes.Call, asm.MainModule.ImportReference(getActiveWorldFnDef)));
bc.Add(Instruction.Create(OpCodes.Callvirt, asm.MainModule.ImportReference(getEntityManagerFnDef)));
bc.Add(Instruction.Create(OpCodes.Stloc, vEntityManager));
}
else
{
// ---------------------------------------------------
// var delegateTypes = stackalloc ComponentType[1]
// {
// ComponentType.ReadWrite<Position>(),
// };
List <Component> comps = FindComponents(jobStruct, executeParams);
// Allocate nParams ComponentTypes
bc.Add(Instruction.Create(OpCodes.Ldc_I4, comps.Count));
bc.Add(Instruction.Create(OpCodes.Conv_U));
bc.Add(Instruction.Create(OpCodes.Sizeof, componentTypeRef));
bc.Add(Instruction.Create(OpCodes.Mul_Ovf_Un));
bc.Add(Instruction.Create(OpCodes.Localloc));
// Initialize them.
for (int i = 0; i < comps.Count; ++i)
{
MethodReference methodRef = null;
if (comps[i].access == Access.ReadOnly)
{
methodRef = openReadOnlyRef;
}
else if (comps[i].access == Access.ReadWrite)
{
methodRef = openReadWriteRef;
}
else if (comps[i].access == Access.Exclude)
{
methodRef = openExcludeRef;
}
var genericArg = comps[i].type;
if (genericArg.Module != asm.MainModule)
{
asm.MainModule.ImportReference(comps[i].type);
}
MethodReference special = TypeRegGen.MakeGenericMethodSpecialization(methodRef, genericArg);
bc.Add(Instruction.Create(OpCodes.Dup)); // duplicate the address we will add to.
bc.Add(Instruction.Create(OpCodes.Ldc_I4, i));
bc.Add(Instruction.Create(OpCodes.Sizeof, componentTypeRef));
bc.Add(Instruction.Create(OpCodes.Mul));
bc.Add(Instruction.Create(OpCodes.Add));
bc.Add(Instruction.Create(OpCodes.Call, special));
bc.Add(Instruction.Create(OpCodes.Stobj, componentTypeRef));
}
bc.Add(Instruction.Create(OpCodes.Stloc, vDelegateTypePtr));
// ---------------------------------------------------
// EntityQuery query = system.GetEntityQueryInternal(delegateTypes, 1);
bc.Add(Instruction.Create(OpCodes.Ldarg, paramSystem));
bc.Add(Instruction.Create(OpCodes.Ldloc, vDelegateTypePtr));
bc.Add(Instruction.Create(OpCodes.Ldc_I4, comps.Count));
bc.Add(Instruction.Create(OpCodes.Callvirt,
asm.MainModule.ImportReference(getEntityQueryInternalFnDef)));
bc.Add(Instruction.Create(OpCodes.Stloc, vEntityQuery));
}
// ArchetypeChunkEntityType archetypeChunkEntityType = system.GetArchetypeChunkEntityType();
if (usesEntity)
{
if (isQuery)
{
bc.Add(Instruction.Create(OpCodes.Ldloc, vEntityManager));
bc.Add(Instruction.Create(OpCodes.Call, getManagerArchetypeChunkEntityTypeFnRef));
bc.Add(Instruction.Create(OpCodes.Stloc, vEntityType));
}
else
{
bc.Add(Instruction.Create(OpCodes.Ldarg, paramSystem));
bc.Add(Instruction.Create(OpCodes.Callvirt, getSystemArchetypeChunkEntityTypeFnRef));
bc.Add(Instruction.Create(OpCodes.Stloc, vEntityType));
}
}
// Query: var chunkComponentType0 = entityManager.GetArchetypeChunkComponentType<Position>(false);
// System: var chunkComponentType0 = system.GetArchetypeChunkComponentType<Position>(false);
for (int i = 0; i < executeParams.Count; ++i)
{
if (isQuery)
{
bc.Add(Instruction.Create(OpCodes.Ldloc, vEntityManager));
}
else
{
bc.Add(Instruction.Create(OpCodes.Ldarg, paramSystem));
}
bc.Add(Instruction.Create(ParamIsReadOnly(executeParams[i]) ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0));
var genericDefinitionType = isQuery ? getManagerACCCTypeFnRef : getSystemACCCTypeFnRef;
var parameterType = executeParams[i].ParameterType.GetElementType();
if (parameterType.Module != asm.MainModule)
{
parameterType = asm.MainModule.ImportReference(parameterType);
}
var specialGetACCCTypeMethodRef = TypeRegGen.MakeGenericMethodSpecialization(genericDefinitionType, parameterType);
bc.Add(Instruction.Create(OpCodes.Callvirt, specialGetACCCTypeMethodRef));
bc.Add(Instruction.Create(OpCodes.Stloc, vChunkComponentType[i]));
}
// var chunks = query.CreateArchetypeChunkArray(Allocator.TempJob);
bc.Add(Instruction.Create(OpCodes.Ldloc, vEntityQuery));
bc.Add(Instruction.Create(OpCodes.Ldc_I4_3)); // Allocator.TempJob = 3
bc.Add(Instruction.Create(OpCodes.Callvirt,
asm.MainModule.ImportReference(createArchetypeChunkArrayFnDef)));
bc.Add(Instruction.Create(OpCodes.Stloc, vChunks));
// for(int j=0, chunkCount = chunks.Length; j<chunkCount; ++j)
bc.Add(Instruction.Create(OpCodes.Ldc_I4_0));
bc.Add(Instruction.Create(OpCodes.Stloc, vJ));
bc.Add(Instruction.Create(OpCodes.Ldloca, vChunks));
bc.Add(Instruction.Create(OpCodes.Call, getLengthFnRef));
bc.Add(Instruction.Create(OpCodes.Stloc, vChunkCount));
var jPrefix = bc.Count;
bc.Add(Instruction.Create(OpCodes.Nop)); // will become branch
var jLoopStart = Instruction.Create(OpCodes.Nop);
bc.Add(jLoopStart);
{
// var chunk = chunks[j];
bc.Add(Instruction.Create(OpCodes.Ldloca, vChunks));
bc.Add(Instruction.Create(OpCodes.Ldloc, vJ));
bc.Add(Instruction.Create(OpCodes.Call, getItemFnRef));
bc.Add(Instruction.Create(OpCodes.Stloc, vChunk));
if (usesEntity)
{
// Entity* entityArray = (Entity*)chunk.GetNativeArray(entityType).GetUnsafeReadOnlyPtr();
bc.Add(Instruction.Create(OpCodes.Ldloca, vChunk));
bc.Add(Instruction.Create(OpCodes.Ldloc, vEntityType));
bc.Add(Instruction.Create(OpCodes.Call, getNativeEntityArrayFnRef));
var special = TypeRegGen.MakeGenericMethodSpecialization(getUnsafeReadOnlyPtrFnDef, entityDef);
bc.Add(Instruction.Create(OpCodes.Call, asm.MainModule.ImportReference(special)));
bc.Add(Instruction.Create(OpCodes.Stloc, vEntityArray));
}
// var array0 = chunk.GetNativeArray(chunkComponentType0).GetUnsafePtr();
for (int i = 0; i < executeParams.Count; ++i)
{
bc.Add(Instruction.Create(OpCodes.Ldloca, vChunk));
bc.Add(Instruction.Create(OpCodes.Ldloc, vChunkComponentType[i]));
var element = executeParams[i].ParameterType.GetElementType();
if (element.Module != asm.MainModule)
{
element = asm.MainModule.ImportReference(element);
}
var specialGetNativeArrayFnRef =
TypeRegGen.MakeGenericMethodSpecialization(getNativeArrayFnRef, element);
bc.Add(Instruction.Create(OpCodes.Call, specialGetNativeArrayFnRef));
MethodReference special = null;
if (ParamIsReadOnly(executeParams[i]))
{
special = TypeRegGen.MakeGenericMethodSpecialization(unsafeReadOnlyPtrFnRef, element);
}
else
{
special = TypeRegGen.MakeGenericMethodSpecialization(unsafePtrFnRef, element);
}
bc.Add(Instruction.Create(OpCodes.Call, special));
bc.Add(Instruction.Create(OpCodes.Stloc, vArray[i]));
}
// Execute_Gen(&job, chunk.Count, (Position*) array0);
bc.Add(Instruction.Create(OpCodes.Ldarga, paramJob));
bc.Add(Instruction.Create(OpCodes.Conv_U));
bc.Add(Instruction.Create(OpCodes.Ldloca, vChunk));
bc.Add(Instruction.Create(OpCodes.Call, getCountFnRef));
if (usesEntity)
{
bc.Add(Instruction.Create(OpCodes.Ldloc, vEntityArray));
}
for (int i = 0; i < executeParams.Count; i++)
{
bc.Add(Instruction.Create(OpCodes.Ldloc, vArray[i]));
}
bc.Add(Instruction.Create(OpCodes.Call, generatedExecute));
// Tail of j loop
var jLoopTail = Instruction.Create(OpCodes.Ldloc, vJ);
bc.Add(jLoopTail);
bc.Add(Instruction.Create(OpCodes.Ldc_I4_1));
bc.Add(Instruction.Create(OpCodes.Add));
bc.Add(Instruction.Create(OpCodes.Stloc, vJ));
}
// Compare
var jCompare = Instruction.Create(OpCodes.Ldloc, vJ);
bc.Add(jCompare);
bc.Add(Instruction.Create(OpCodes.Ldloc, vChunkCount));
bc.Add(Instruction.Create(OpCodes.Clt));
bc.Add(Instruction.Create(OpCodes.Brtrue, jLoopStart));
bc[jPrefix] = Instruction.Create(OpCodes.Br, jCompare);
// Dispose
bc.Add(Instruction.Create(OpCodes.Ldloca, vChunks));
bc.Add(Instruction.Create(OpCodes.Call,
asm.MainModule.ImportReference(disposeFnDef.MakeHostInstanceGeneric(archetypeChunkDef))));
// CleanupJob()
bc.Add(Instruction.Create(OpCodes.Ldarga, paramJob));
bc.Add(Instruction.Create(OpCodes.Conv_U));
// This calls the CleanupMethod, but disables the "wrapper cleanup" which makes no sense in this version
// of IJobForEach. Correct fix coming in a future PR, when IJobForEach is moved back to the
// normal Job code with the other jobs.
bc.Add(Instruction.Create(OpCodes.Ldc_I4_0));
bc.Add(Instruction.Create(OpCodes.Conv_U));
bc.Add(Instruction.Create(OpCodes.Call, asm.MainModule.ImportReference(cleanupMethodDef)));
// Return a jobHandle
bc.Add(Instruction.Create(OpCodes.Ldloca, vJobHandle));
bc.Add(Instruction.Create(OpCodes.Initobj, jobHandleRef));
bc.Add(Instruction.Create(OpCodes.Ldloc, vJobHandle));
bc.Add(Instruction.Create(OpCodes.Ret));
method.Body.Optimize();
jobStruct.Methods.Add(method);
return(method);
}