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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
// 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.Collections.Generic;
using System.Diagnostics;
using Internal.Text;
using Internal.TypeSystem;
using Internal.TypeSystem.Ecma;
namespace ILCompiler.DependencyAnalysis
{
/// <summary>
/// Represents a frozen array
/// </summary>
public class FrozenArrayNode : EmbeddedObjectNode, ISymbolDefinitionNode
{
private PreInitFieldInfo _preInitFieldInfo;
public FrozenArrayNode(PreInitFieldInfo preInitFieldInfo)
{
_preInitFieldInfo = preInitFieldInfo;
}
public void AppendMangledName(NameMangler nameMangler, Utf8StringBuilder sb)
{
sb.Append(nameMangler.CompilationUnitPrefix).Append("__FrozenArr_")
.Append(nameMangler.GetMangledFieldName(_preInitFieldInfo.Field));
}
public override bool StaticDependenciesAreComputed => true;
int ISymbolNode.Offset => 0;
int ISymbolDefinitionNode.Offset
{
get
{
// The frozen array symbol points at the EEType portion of the object, skipping over the sync block
return OffsetFromBeginningOfArray + _preInitFieldInfo.Field.Context.Target.PointerSize;
}
}
private IEETypeNode GetEETypeNode(NodeFactory factory)
{
var fieldType = _preInitFieldInfo.Type;
var node = factory.ConstructedTypeSymbol(fieldType);
Debug.Assert(!node.RepresentsIndirectionCell); // Array are always local
return node;
}
public override void EncodeData(ref ObjectDataBuilder dataBuilder, NodeFactory factory, bool relocsOnly)
{
// Sync Block
dataBuilder.EmitZeroPointer();
// EEType
dataBuilder.EmitPointerReloc(GetEETypeNode(factory));
// numComponents
dataBuilder.EmitInt(_preInitFieldInfo.Length);
int pointerSize = _preInitFieldInfo.Field.Context.Target.PointerSize;
Debug.Assert(pointerSize == 8 || pointerSize == 4);
if (pointerSize == 8)
{
// padding numComponents in 64-bit
dataBuilder.EmitInt(0);
}
// byte contents
_preInitFieldInfo.WriteData(ref dataBuilder, factory, relocsOnly);
}
protected override string GetName(NodeFactory factory) => this.GetMangledName(factory.NameMangler);
public override IEnumerable<DependencyListEntry> GetStaticDependencies(NodeFactory factory)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, true);
EncodeData(ref builder, factory, true);
Relocation[] relocs = builder.ToObjectData().Relocs;
DependencyList dependencies = null;
if (relocs != null)
{
dependencies = new DependencyList();
foreach (Relocation reloc in relocs)
{
dependencies.Add(reloc.Target, "reloc");
}
}
return dependencies;
}
protected override void OnMarked(NodeFactory factory)
{
factory.FrozenSegmentRegion.AddEmbeddedObject(this);
}
protected internal override int ClassCode => 1789429316;
protected internal override int CompareToImpl(SortableDependencyNode other, CompilerComparer comparer)
{
return _preInitFieldInfo.CompareTo(((FrozenArrayNode)other)._preInitFieldInfo, comparer);
}
}
}
|
