/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/tools/diagtool/TreeView.cpp
Line | Count | Source (jump to first uncovered line) |
1 | | //===- TreeView.cpp - diagtool tool for printing warning flags ------------===// |
2 | | // |
3 | | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | | // See https://llvm.org/LICENSE.txt for license information. |
5 | | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | | // |
7 | | //===----------------------------------------------------------------------===// |
8 | | |
9 | | #include "DiagTool.h" |
10 | | #include "DiagnosticNames.h" |
11 | | #include "clang/Basic/AllDiagnostics.h" |
12 | | #include "clang/Basic/Diagnostic.h" |
13 | | #include "clang/Basic/DiagnosticOptions.h" |
14 | | #include "llvm/ADT/DenseSet.h" |
15 | | #include "llvm/Support/Format.h" |
16 | | #include "llvm/Support/Process.h" |
17 | | |
18 | | DEF_DIAGTOOL("tree", "Show warning flags in a tree view", TreeView) |
19 | | |
20 | | using namespace clang; |
21 | | using namespace diagtool; |
22 | | |
23 | | class TreePrinter { |
24 | | using Colors = llvm::raw_ostream::Colors; |
25 | | |
26 | | public: |
27 | | llvm::raw_ostream &out; |
28 | | bool Internal; |
29 | | |
30 | 7 | TreePrinter(llvm::raw_ostream &out) : out(out), Internal(false) {} |
31 | | |
32 | 13.9k | static bool isIgnored(unsigned DiagID) { |
33 | | // FIXME: This feels like a hack. |
34 | 13.9k | static clang::DiagnosticsEngine Diags(new DiagnosticIDs, |
35 | 13.9k | new DiagnosticOptions); |
36 | 13.9k | return Diags.isIgnored(DiagID, SourceLocation()); |
37 | 13.9k | } |
38 | | |
39 | 3.88k | static bool unimplemented(const GroupRecord &Group) { |
40 | 3.88k | if (!Group.diagnostics().empty()) |
41 | 3.44k | return false; |
42 | | |
43 | 438 | return llvm::all_of(Group.subgroups(), unimplemented); |
44 | 3.88k | } |
45 | | |
46 | 4.08k | static bool enabledByDefault(const GroupRecord &Group) { |
47 | 6.02k | for (const DiagnosticRecord &DR : Group.diagnostics()) { |
48 | 6.02k | if (isIgnored(DR.DiagID)) |
49 | 1.74k | return false; |
50 | 6.02k | } |
51 | | |
52 | 2.34k | for (const GroupRecord &GR : Group.subgroups()) { |
53 | 647 | if (!enabledByDefault(GR)) |
54 | 285 | return false; |
55 | 647 | } |
56 | | |
57 | 2.05k | return true; |
58 | 2.34k | } |
59 | | |
60 | 3.56k | void printGroup(const GroupRecord &Group, unsigned Indent = 0) { |
61 | 3.56k | out.indent(Indent * 2); |
62 | | |
63 | 3.56k | if (unimplemented(Group)) |
64 | 124 | out << Colors::RED; |
65 | 3.44k | else if (enabledByDefault(Group)) |
66 | 1.69k | out << Colors::GREEN; |
67 | 1.74k | else |
68 | 1.74k | out << Colors::YELLOW; |
69 | | |
70 | 3.56k | out << "-W" << Group.getName() << "\n" << Colors::RESET; |
71 | | |
72 | 3.56k | ++Indent; |
73 | 3.56k | for (const GroupRecord &GR : Group.subgroups()) { |
74 | 1.88k | printGroup(GR, Indent); |
75 | 1.88k | } |
76 | | |
77 | 3.56k | if (Internal) { |
78 | 7.94k | for (const DiagnosticRecord &DR : Group.diagnostics()) { |
79 | 7.94k | if (!isIgnored(DR.DiagID)) |
80 | 3.62k | out << Colors::GREEN; |
81 | 7.94k | out.indent(Indent * 2); |
82 | 7.94k | out << DR.getName() << Colors::RESET << "\n"; |
83 | 7.94k | } |
84 | 3.43k | } |
85 | 3.56k | } |
86 | | |
87 | 4 | int showGroup(StringRef RootGroup) { |
88 | 4 | ArrayRef<GroupRecord> AllGroups = getDiagnosticGroups(); |
89 | | |
90 | 4 | if (RootGroup.size() > UINT16_MAX) { |
91 | 0 | llvm::errs() << "No such diagnostic group exists\n"; |
92 | 0 | return 1; |
93 | 0 | } |
94 | | |
95 | 4 | const GroupRecord *Found = llvm::lower_bound(AllGroups, RootGroup); |
96 | 4 | if (Found == AllGroups.end() || Found->getName() != RootGroup) { |
97 | 1 | llvm::errs() << "No such diagnostic group exists\n"; |
98 | 1 | return 1; |
99 | 1 | } |
100 | | |
101 | 3 | printGroup(*Found); |
102 | | |
103 | 3 | return 0; |
104 | 4 | } |
105 | | |
106 | 3 | int showAll() { |
107 | 3 | ArrayRef<GroupRecord> AllGroups = getDiagnosticGroups(); |
108 | 3 | llvm::DenseSet<unsigned> NonRootGroupIDs; |
109 | | |
110 | 2.84k | for (const GroupRecord &GR : AllGroups) { |
111 | 4.41k | for (auto SI = GR.subgroup_begin(), SE = GR.subgroup_end(); SI != SE; |
112 | 2.84k | ++SI1.57k ) { |
113 | 1.57k | NonRootGroupIDs.insert((unsigned)SI.getID()); |
114 | 1.57k | } |
115 | 2.84k | } |
116 | | |
117 | 3 | assert(NonRootGroupIDs.size() < AllGroups.size()); |
118 | | |
119 | 2.84k | for (unsigned i = 0, e = AllGroups.size(); i != e; ++i2.84k ) { |
120 | 2.84k | if (!NonRootGroupIDs.count(i)) |
121 | 1.67k | printGroup(AllGroups[i]); |
122 | 2.84k | } |
123 | | |
124 | 3 | return 0; |
125 | 3 | } |
126 | | |
127 | 7 | void showKey() { |
128 | 7 | out << '\n' << Colors::GREEN << "GREEN" << Colors::RESET |
129 | 7 | << " = enabled by default"; |
130 | 7 | out << '\n' << Colors::RED << "RED" << Colors::RESET |
131 | 7 | << " = unimplemented (accepted for GCC compatibility)\n\n"; |
132 | 7 | } |
133 | | }; |
134 | | |
135 | 0 | static void printUsage() { |
136 | 0 | llvm::errs() << "Usage: diagtool tree [--internal] [<diagnostic-group>]\n"; |
137 | 0 | } |
138 | | |
139 | 7 | int TreeView::run(unsigned int argc, char **argv, llvm::raw_ostream &out) { |
140 | | // First check our one flag (--flags-only). |
141 | 7 | bool Internal = false; |
142 | 7 | if (argc > 0) { |
143 | 7 | StringRef FirstArg(*argv); |
144 | 7 | if (FirstArg.equals("--internal")) { |
145 | 4 | Internal = true; |
146 | 4 | --argc; |
147 | 4 | ++argv; |
148 | 4 | } |
149 | 7 | } |
150 | | |
151 | 7 | bool ShowAll = false; |
152 | 7 | StringRef RootGroup; |
153 | | |
154 | 7 | switch (argc) { |
155 | 1 | case 0: |
156 | 1 | ShowAll = true; |
157 | 1 | break; |
158 | 6 | case 1: |
159 | 6 | RootGroup = argv[0]; |
160 | 6 | if (RootGroup.startswith("-W")) |
161 | 5 | RootGroup = RootGroup.substr(2); |
162 | 6 | if (RootGroup == "everything") |
163 | 2 | ShowAll = true; |
164 | | // FIXME: Handle other special warning flags, like -pedantic. |
165 | 6 | break; |
166 | 0 | default: |
167 | 0 | printUsage(); |
168 | 0 | return -1; |
169 | 7 | } |
170 | | |
171 | 7 | out.enable_colors(out.has_colors()); |
172 | | |
173 | 7 | TreePrinter TP(out); |
174 | 7 | TP.Internal = Internal; |
175 | 7 | TP.showKey(); |
176 | 7 | return ShowAll ? TP.showAll()3 : TP.showGroup(RootGroup)4 ; |
177 | 7 | } |