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
|
//===- TreeView.cpp - diagtool tool for printing warning flags ------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This diagnostic tool
//
//===----------------------------------------------------------------------===//
#include "DiagTool.h"
#include "DiagnosticNames.h"
#include "clang/AST/ASTDiagnostic.h"
#include "clang/Basic/AllDiagnostics.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/DiagnosticOptions.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/Process.h"
DEF_DIAGTOOL("tree",
"Show warning flags in a tree view",
TreeView)
using namespace clang;
using namespace diagtool;
static void printUsage() {
llvm::errs() << "Usage: diagtool tree [--flags-only] [<diagnostic-group>]\n";
}
static bool showColors(llvm::raw_ostream &out) {
if (&out != &llvm::errs() && &out != &llvm::outs())
return false;
return llvm::errs().is_displayed() && llvm::outs().is_displayed();
}
static void setColor(bool ShowColors, llvm::raw_ostream &out,
llvm::raw_ostream::Colors Color) {
if (ShowColors)
out << llvm::sys::Process::OutputColor(Color, false, false);
}
static void resetColor(bool ShowColors, llvm::raw_ostream &out) {
if (ShowColors)
out << llvm::sys::Process::ResetColor();
}
static clang::DiagnosticsEngine::Level getLevel(unsigned DiagID) {
// FIXME: This feels like a hack.
static clang::DiagnosticsEngine Diags(new DiagnosticIDs,
new DiagnosticOptions);
return Diags.getDiagnosticLevel(DiagID, SourceLocation());
}
static void printGroup(llvm::raw_ostream &out, const GroupRecord &Group,
bool FlagsOnly, unsigned Indent = 0) {
out.indent(Indent * 2);
bool ShowColors = showColors(out);
setColor(ShowColors, out, llvm::raw_ostream::YELLOW);
out << "-W" << Group.getName() << "\n";
resetColor(ShowColors, out);
++Indent;
for (GroupRecord::subgroup_iterator I = Group.subgroup_begin(),
E = Group.subgroup_end();
I != E; ++I) {
printGroup(out, *I, FlagsOnly, Indent);
}
if (!FlagsOnly) {
for (GroupRecord::diagnostics_iterator I = Group.diagnostics_begin(),
E = Group.diagnostics_end();
I != E; ++I) {
if (ShowColors) {
if (getLevel(I->DiagID) != DiagnosticsEngine::Ignored) {
setColor(ShowColors, out, llvm::raw_ostream::GREEN);
}
}
out.indent(Indent * 2);
out << I->getName();
resetColor(ShowColors, out);
out << "\n";
}
}
}
static int showGroup(llvm::raw_ostream &out, StringRef RootGroup,
bool FlagsOnly) {
ArrayRef<GroupRecord> AllGroups = getDiagnosticGroups();
if (RootGroup.size() > UINT16_MAX) {
llvm::errs() << "No such diagnostic group exists\n";
return 1;
}
const GroupRecord *Found =
std::lower_bound(AllGroups.begin(), AllGroups.end(), RootGroup);
if (Found == AllGroups.end() || Found->getName() != RootGroup) {
llvm::errs() << "No such diagnostic group exists\n";
return 1;
}
printGroup(out, *Found, FlagsOnly);
return 0;
}
static int showAll(llvm::raw_ostream &out, bool FlagsOnly) {
ArrayRef<GroupRecord> AllGroups = getDiagnosticGroups();
llvm::DenseSet<unsigned> NonRootGroupIDs;
for (ArrayRef<GroupRecord>::iterator I = AllGroups.begin(),
E = AllGroups.end();
I != E; ++I) {
for (GroupRecord::subgroup_iterator SI = I->subgroup_begin(),
SE = I->subgroup_end();
SI != SE; ++SI) {
NonRootGroupIDs.insert((unsigned)SI.getID());
}
}
assert(NonRootGroupIDs.size() < AllGroups.size());
for (unsigned i = 0, e = AllGroups.size(); i != e; ++i) {
if (!NonRootGroupIDs.count(i))
printGroup(out, AllGroups[i], FlagsOnly);
}
return 0;
}
int TreeView::run(unsigned int argc, char **argv, llvm::raw_ostream &out) {
// First check our one flag (--flags-only).
bool FlagsOnly = false;
if (argc > 0) {
StringRef FirstArg(*argv);
if (FirstArg.equals("--flags-only")) {
FlagsOnly = true;
--argc;
++argv;
}
}
bool ShowAll = false;
StringRef RootGroup;
switch (argc) {
case 0:
ShowAll = true;
break;
case 1:
RootGroup = argv[0];
if (RootGroup.startswith("-W"))
RootGroup = RootGroup.substr(2);
if (RootGroup == "everything")
ShowAll = true;
// FIXME: Handle other special warning flags, like -pedantic.
break;
default:
printUsage();
return -1;
}
if (showColors(out)) {
out << '\n';
setColor(true, out, llvm::raw_ostream::GREEN);
out << "GREEN";
resetColor(true, out);
out << " = enabled by default\n\n";
}
if (ShowAll)
return showAll(out, FlagsOnly);
return showGroup(out, RootGroup, FlagsOnly);
}
|
