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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
//
// SourceMethodBuilder.cs
//
// Authors:
// Martin Baulig (martin@ximian.com)
// Marek Safar (marek.safar@gmail.com)
//
// (C) 2002 Ximian, Inc. http://www.ximian.com
// Copyright (C) 2012 Xamarin Inc (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Collections.Generic;
namespace Mono.CompilerServices.SymbolWriter
{
public class SourceMethodBuilder
{
List<LocalVariableEntry> _locals;
List<CodeBlockEntry> _blocks;
List<ScopeVariable> _scope_vars;
Stack<CodeBlockEntry> _block_stack;
readonly List<LineNumberEntry> method_lines;
readonly ICompileUnit _comp_unit;
readonly int ns_id;
readonly IMethodDef method;
public SourceMethodBuilder (ICompileUnit comp_unit)
{
this._comp_unit = comp_unit;
method_lines = new List<LineNumberEntry> ();
}
public SourceMethodBuilder (ICompileUnit comp_unit, int ns_id, IMethodDef method)
: this (comp_unit)
{
this.ns_id = ns_id;
this.method = method;
}
public void MarkSequencePoint (int offset, SourceFileEntry file, int line, int column, bool is_hidden)
{
int file_idx = file != null ? file.Index : 0;
var lne = new LineNumberEntry (file_idx, line, column, offset, is_hidden);
if (method_lines.Count > 0) {
var prev = method_lines[method_lines.Count - 1];
//
// Same offset cannot be used for multiple lines
//
if (prev.Offset == offset) {
//
// Use the new location because debugger will adjust
// the breakpoint to next line with sequence point
//
if (LineNumberEntry.LocationComparer.Default.Compare (lne, prev) > 0)
method_lines[method_lines.Count - 1] = lne;
return;
}
}
method_lines.Add (lne);
}
public void StartBlock (CodeBlockEntry.Type type, int start_offset)
{
if (_block_stack == null) {
_block_stack = new Stack<CodeBlockEntry> ();
}
if (_blocks == null)
_blocks = new List<CodeBlockEntry> ();
int parent = CurrentBlock != null ? CurrentBlock.Index : -1;
CodeBlockEntry block = new CodeBlockEntry (
_blocks.Count + 1, parent, type, start_offset);
_block_stack.Push (block);
_blocks.Add (block);
}
public void EndBlock (int end_offset)
{
CodeBlockEntry block = (CodeBlockEntry) _block_stack.Pop ();
block.Close (end_offset);
}
public CodeBlockEntry[] Blocks {
get {
if (_blocks == null)
return new CodeBlockEntry [0];
CodeBlockEntry[] retval = new CodeBlockEntry [_blocks.Count];
_blocks.CopyTo (retval, 0);
return retval;
}
}
public CodeBlockEntry CurrentBlock {
get {
if ((_block_stack != null) && (_block_stack.Count > 0))
return (CodeBlockEntry) _block_stack.Peek ();
else
return null;
}
}
public LocalVariableEntry[] Locals {
get {
if (_locals == null)
return new LocalVariableEntry [0];
else {
return _locals.ToArray ();
}
}
}
public ICompileUnit SourceFile {
get {
return _comp_unit;
}
}
public void AddLocal (int index, string name)
{
if (_locals == null)
_locals = new List<LocalVariableEntry> ();
int block_idx = CurrentBlock != null ? CurrentBlock.Index : 0;
_locals.Add (new LocalVariableEntry (index, name, block_idx));
}
public ScopeVariable[] ScopeVariables {
get {
if (_scope_vars == null)
return new ScopeVariable [0];
return _scope_vars.ToArray ();
}
}
public void AddScopeVariable (int scope, int index)
{
if (_scope_vars == null)
_scope_vars = new List<ScopeVariable> ();
_scope_vars.Add (
new ScopeVariable (scope, index));
}
public void DefineMethod (MonoSymbolFile file)
{
DefineMethod (file, method.Token);
}
public void DefineMethod (MonoSymbolFile file, int token)
{
MethodEntry entry = new MethodEntry (
file, _comp_unit.Entry, token, ScopeVariables,
Locals, method_lines.ToArray (), Blocks, null, MethodEntry.Flags.ColumnsInfoIncluded, ns_id);
file.AddMethod (entry);
}
}
}
|
