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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
// 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.Linq;
using System.Text;
using Mono.Cecil;
using Mono.Cecil.Cil;
namespace Mono.Linker
{
public readonly struct MessageOrigin : IComparable<MessageOrigin>, IEquatable<MessageOrigin>
{
#nullable enable
public string? FileName { get; }
public IMemberDefinition? MemberDefinition { get; }
readonly IMemberDefinition _suppressionContextMember;
public IMemberDefinition? SuppressionContextMember { get => _suppressionContextMember ?? MemberDefinition; }
#nullable disable
public int SourceLine { get; }
public int SourceColumn { get; }
public int? ILOffset { get; }
const int HiddenLineNumber = 0xfeefee;
public MessageOrigin (IMemberDefinition memberDefinition)
: this (memberDefinition, null)
{
}
public MessageOrigin (string fileName, int sourceLine = 0, int sourceColumn = 0)
{
FileName = fileName;
SourceLine = sourceLine;
SourceColumn = sourceColumn;
MemberDefinition = null;
_suppressionContextMember = null;
ILOffset = null;
}
public MessageOrigin (IMemberDefinition memberDefinition, int? ilOffset)
: this (memberDefinition, ilOffset, null)
{
}
public MessageOrigin (IMemberDefinition memberDefinition, int? ilOffset, IMemberDefinition suppressionContextMember)
{
FileName = null;
MemberDefinition = memberDefinition;
_suppressionContextMember = suppressionContextMember;
SourceLine = 0;
SourceColumn = 0;
ILOffset = ilOffset;
}
public override string ToString ()
{
int sourceLine = SourceLine, sourceColumn = SourceColumn;
string fileName = FileName;
if (MemberDefinition is MethodDefinition method &&
method.DebugInformation.HasSequencePoints) {
var offset = ILOffset ?? 0;
SequencePoint correspondingSequencePoint = method.DebugInformation.SequencePoints
.Where (s => s.Offset <= offset)?.Last ();
// If the warning comes from hidden line (compiler generated code typically)
// search for any sequence point with non-hidden line number and report that as a best effort.
if (correspondingSequencePoint.StartLine == HiddenLineNumber) {
correspondingSequencePoint = method.DebugInformation.SequencePoints
.Where (s => s.StartLine != HiddenLineNumber)?.FirstOrDefault ();
}
if (correspondingSequencePoint != null) {
fileName = correspondingSequencePoint.Document.Url;
sourceLine = correspondingSequencePoint.StartLine;
sourceColumn = correspondingSequencePoint.StartColumn;
}
}
if (fileName == null)
return null;
StringBuilder sb = new StringBuilder (fileName);
if (sourceLine != 0) {
sb.Append ("(").Append (sourceLine);
if (sourceColumn != 0)
sb.Append (",").Append (sourceColumn);
sb.Append (")");
}
return sb.ToString ();
}
public bool Equals (MessageOrigin other) =>
(FileName, MemberDefinition, SourceLine, SourceColumn, ILOffset) == (other.FileName, other.MemberDefinition, other.SourceLine, other.SourceColumn, other.ILOffset);
public override bool Equals (object obj) => obj is MessageOrigin messageOrigin && Equals (messageOrigin);
public override int GetHashCode () => (FileName, MemberDefinition, SourceLine, SourceColumn).GetHashCode ();
public static bool operator == (MessageOrigin lhs, MessageOrigin rhs) => lhs.Equals (rhs);
public static bool operator != (MessageOrigin lhs, MessageOrigin rhs) => !lhs.Equals (rhs);
public int CompareTo (MessageOrigin other)
{
if (MemberDefinition != null && other.MemberDefinition != null) {
TypeDefinition thisTypeDef = (MemberDefinition as TypeDefinition) ?? MemberDefinition.DeclaringType;
TypeDefinition otherTypeDef = (other.MemberDefinition as TypeDefinition) ?? other.MemberDefinition.DeclaringType;
int result = (thisTypeDef?.Module?.Assembly?.Name?.Name, thisTypeDef?.Name, MemberDefinition?.Name).CompareTo
((otherTypeDef?.Module?.Assembly?.Name?.Name, otherTypeDef?.Name, other.MemberDefinition?.Name));
if (result != 0)
return result;
if (ILOffset != null && other.ILOffset != null)
return ILOffset.Value.CompareTo (other.ILOffset);
return ILOffset == null ? (other.ILOffset == null ? 0 : 1) : -1;
} else if (MemberDefinition == null && other.MemberDefinition == null) {
if (FileName != null && other.FileName != null) {
return string.Compare (FileName, other.FileName);
} else if (FileName == null && other.FileName == null) {
return (SourceLine, SourceColumn).CompareTo ((other.SourceLine, other.SourceColumn));
}
return (FileName == null) ? 1 : -1;
}
return (MemberDefinition == null) ? 1 : -1;
}
}
}
|
