1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
// 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 Internal.NativeFormat;
using Internal.Text;
using Internal.TypeSystem;
namespace ILCompiler.DependencyAnalysis
{
/// <summary>
/// Represents a hash table of delegate marshalling stub types generated into the image.
/// </summary>
internal sealed class DelegateMarshallingStubMapNode : ObjectNode, ISymbolDefinitionNode
{
private ObjectAndOffsetSymbolNode _endSymbol;
private ExternalReferencesTableNode _externalReferences;
public DelegateMarshallingStubMapNode(ExternalReferencesTableNode externalReferences)
{
_endSymbol = new ObjectAndOffsetSymbolNode(this, 0, "__delegate_marshalling_stub_map_End", true);
_externalReferences = externalReferences;
}
public ISymbolDefinitionNode EndSymbol => _endSymbol;
public void AppendMangledName(NameMangler nameMangler, Utf8StringBuilder sb)
{
sb.Append(nameMangler.CompilationUnitPrefix).Append("__delegate_marshalling_stub_map");
}
public int Offset => 0;
public override bool IsShareable => false;
public override ObjectNodeSection Section => _externalReferences.Section;
public override bool StaticDependenciesAreComputed => true;
protected override string GetName(NodeFactory factory) => this.GetMangledName(factory.NameMangler);
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
// This node does not trigger generation of other nodes.
if (relocsOnly)
return new ObjectData(Array.Empty<byte>(), Array.Empty<Relocation>(), 1, new ISymbolDefinitionNode[] { this });
var writer = new NativeWriter();
var typeMapHashTable = new VertexHashtable();
Section hashTableSection = writer.NewSection();
hashTableSection.Place(typeMapHashTable);
foreach (var delegateEntry in ((CompilerGeneratedInteropStubManager)factory.InteropStubManager).GetDelegateMarshallingThunks())
{
var delegateType = delegateEntry.DelegateType;
Vertex thunks= writer.GetTuple(
writer.GetUnsignedConstant(_externalReferences.GetIndex(factory.MethodEntrypoint(delegateEntry.OpenStaticDelegateMarshallingThunk))),
writer.GetUnsignedConstant(_externalReferences.GetIndex(factory.MethodEntrypoint(delegateEntry.ClosedDelegateMarshallingThunk))),
writer.GetUnsignedConstant(_externalReferences.GetIndex(factory.MethodEntrypoint(delegateEntry.DelegateCreationThunk)))
);
Vertex vertex = writer.GetTuple(
writer.GetUnsignedConstant(_externalReferences.GetIndex(factory.NecessaryTypeSymbol(delegateType))),
thunks
);
int hashCode = delegateType.GetHashCode();
typeMapHashTable.Append((uint)hashCode, hashTableSection.Place(vertex));
}
byte[] hashTableBytes = writer.Save();
_endSymbol.SetSymbolOffset(hashTableBytes.Length);
return new ObjectData(hashTableBytes, Array.Empty<Relocation>(), 1, new ISymbolDefinitionNode[] { this, _endSymbol });
}
protected internal override int Phase => (int)ObjectNodePhase.Ordered;
public override int ClassCode => (int)ObjectNodeOrder.DelegateMarshallingStubMapNode;
}
}
|
