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
186
187
188
189
190
191
|
//===- 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.
//
//===----------------------------------------------------------------------===//
#include "DiagTool.h"
#include "DiagnosticNames.h"
#include "clang/Basic/AllDiagnostics.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/DiagnosticOptions.h"
#include "llvm/ADT/DenseSet.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 bool hasColors(const llvm::raw_ostream &out) {
if (&out != &llvm::errs() && &out != &llvm::outs())
return false;
return llvm::errs().is_displayed() && llvm::outs().is_displayed();
}
class TreePrinter {
public:
llvm::raw_ostream &out;
const bool ShowColors;
bool Internal;
TreePrinter(llvm::raw_ostream &out)
: out(out), ShowColors(hasColors(out)), Internal(false) {}
void setColor(llvm::raw_ostream::Colors Color) {
if (ShowColors)
out << llvm::sys::Process::OutputColor(Color, false, false);
}
void resetColor() {
if (ShowColors)
out << llvm::sys::Process::ResetColor();
}
static bool isIgnored(unsigned DiagID) {
// FIXME: This feels like a hack.
static clang::DiagnosticsEngine Diags(new DiagnosticIDs,
new DiagnosticOptions);
return Diags.isIgnored(DiagID, SourceLocation());
}
static bool enabledByDefault(const GroupRecord &Group) {
for (const DiagnosticRecord &DR : Group.diagnostics()) {
if (isIgnored(DR.DiagID))
return false;
}
for (const GroupRecord &GR : Group.subgroups()) {
if (!enabledByDefault(GR))
return false;
}
return true;
}
void printGroup(const GroupRecord &Group, unsigned Indent = 0) {
out.indent(Indent * 2);
if (enabledByDefault(Group))
setColor(llvm::raw_ostream::GREEN);
else
setColor(llvm::raw_ostream::YELLOW);
out << "-W" << Group.getName() << "\n";
resetColor();
++Indent;
for (const GroupRecord &GR : Group.subgroups()) {
printGroup(GR, Indent);
}
if (Internal) {
for (const DiagnosticRecord &DR : Group.diagnostics()) {
if (ShowColors && !isIgnored(DR.DiagID))
setColor(llvm::raw_ostream::GREEN);
out.indent(Indent * 2);
out << DR.getName();
resetColor();
out << "\n";
}
}
}
int showGroup(StringRef RootGroup) {
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(*Found);
return 0;
}
int showAll() {
ArrayRef<GroupRecord> AllGroups = getDiagnosticGroups();
llvm::DenseSet<unsigned> NonRootGroupIDs;
for (const GroupRecord &GR : AllGroups) {
for (auto SI = GR.subgroup_begin(), SE = GR.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(AllGroups[i]);
}
return 0;
}
void showKey() {
if (ShowColors) {
out << '\n';
setColor(llvm::raw_ostream::GREEN);
out << "GREEN";
resetColor();
out << " = enabled by default\n\n";
}
}
};
static void printUsage() {
llvm::errs() << "Usage: diagtool tree [--internal] [<diagnostic-group>]\n";
}
int TreeView::run(unsigned int argc, char **argv, llvm::raw_ostream &out) {
// First check our one flag (--flags-only).
bool Internal = false;
if (argc > 0) {
StringRef FirstArg(*argv);
if (FirstArg.equals("--internal")) {
Internal = 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;
}
TreePrinter TP(out);
TP.Internal = Internal;
TP.showKey();
return ShowAll ? TP.showAll() : TP.showGroup(RootGroup);
}
|
