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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Diagnostics;
using Internal.Text;
using Internal.TypeSystem;
namespace ILCompiler.DependencyAnalysis
{
public class RuntimeMethodHandleNode : ObjectNode, ISymbolDefinitionNode
{
private MethodDesc _targetMethod;
public MethodDesc Method => _targetMethod;
public RuntimeMethodHandleNode(MethodDesc targetMethod)
{
Debug.Assert(!targetMethod.IsSharedByGenericInstantiations);
// IL is allowed to LDTOKEN an uninstantiated thing. Do not check IsRuntimeDetermined for the nonexact thing.
Debug.Assert((targetMethod.HasInstantiation && targetMethod.IsMethodDefinition)
|| targetMethod.OwningType.IsGenericDefinition
|| !targetMethod.IsRuntimeDeterminedExactMethod);
_targetMethod = targetMethod;
}
public void AppendMangledName(NameMangler nameMangler, Utf8StringBuilder sb)
{
sb.Append(nameMangler.CompilationUnitPrefix)
.Append("__RuntimeMethodHandle_")
.Append(nameMangler.GetMangledMethodName(_targetMethod));
}
public int Offset => 0;
protected override string GetName(NodeFactory factory) => this.GetMangledName(factory.NameMangler);
public override bool IsShareable => false;
public override bool StaticDependenciesAreComputed => true;
public override ObjectNodeSection Section
{
get
{
if (_targetMethod.Context.Target.IsWindows)
return ObjectNodeSection.ReadOnlyDataSection;
else
return ObjectNodeSection.DataSection;
}
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencies = null;
if (!_targetMethod.IsMethodDefinition && !_targetMethod.OwningType.IsGenericDefinition
&& _targetMethod.HasInstantiation && _targetMethod.IsVirtual)
{
dependencies = dependencies ?? new DependencyList();
dependencies.Add(factory.GVMDependencies(_targetMethod), "GVM dependencies for runtime method handle");
}
factory.MetadataManager.GetDependenciesDueToLdToken(ref dependencies, factory, _targetMethod);
return dependencies;
}
private static Utf8String s_NativeLayoutSignaturePrefix = new Utf8String("__RMHSignature_");
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory, relocsOnly);
objData.RequireInitialPointerAlignment();
objData.AddSymbol(this);
NativeLayoutMethodLdTokenVertexNode ldtokenSigNode = factory.NativeLayout.MethodLdTokenVertex(_targetMethod);
objData.EmitPointerReloc(factory.NativeLayout.NativeLayoutSignature(ldtokenSigNode, s_NativeLayoutSignaturePrefix, _targetMethod));
return objData.ToObjectData();
}
public override int ClassCode => -274400625;
public override int CompareToImpl(ISortableNode other, CompilerComparer comparer)
{
return comparer.Compare(_targetMethod, ((RuntimeMethodHandleNode)other)._targetMethod);
}
}
}
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