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| 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 | RegisterTreeView;}" file_link="DiagTool.h.html#58" macro="true">DEF_DIAGTOOL("tree", "Show warning flags in a tree view", TreeView) |
| 19 | |
| 20 | using namespace clang; |
| 21 | using namespace diagtool; |
| 22 | |
| 23 | static bool hasColors(const llvm::raw_ostream &out) { |
| 24 | if (&out != &llvm::errs() && &out != &llvm::outs()) |
| 25 | return false; |
| 26 | return llvm::errs().is_displayed() && llvm::outs().is_displayed(); |
| 27 | } |
| 28 | |
| 29 | class TreePrinter { |
| 30 | public: |
| 31 | llvm::raw_ostream &out; |
| 32 | const bool ShowColors; |
| 33 | bool Internal; |
| 34 | |
| 35 | TreePrinter(llvm::raw_ostream &out) |
| 36 | : out(out), ShowColors(hasColors(out)), Internal(false) {} |
| 37 | |
| 38 | void setColor(llvm::raw_ostream::Colors Color) { |
| 39 | if (ShowColors) |
| 40 | out << llvm::sys::Process::OutputColor(Color, false, false); |
| 41 | } |
| 42 | |
| 43 | void resetColor() { |
| 44 | if (ShowColors) |
| 45 | out << llvm::sys::Process::ResetColor(); |
| 46 | } |
| 47 | |
| 48 | static bool isIgnored(unsigned DiagID) { |
| 49 | |
| 50 | static clang::DiagnosticsEngine Diags(new DiagnosticIDs, |
| 51 | new DiagnosticOptions); |
| 52 | return Diags.isIgnored(DiagID, SourceLocation()); |
| 53 | } |
| 54 | |
| 55 | static bool enabledByDefault(const GroupRecord &Group) { |
| 56 | for (const DiagnosticRecord &DR : Group.diagnostics()) { |
| 57 | if (isIgnored(DR.DiagID)) |
| 58 | return false; |
| 59 | } |
| 60 | |
| 61 | for (const GroupRecord &GR : Group.subgroups()) { |
| 62 | if (!enabledByDefault(GR)) |
| 63 | return false; |
| 64 | } |
| 65 | |
| 66 | return true; |
| 67 | } |
| 68 | |
| 69 | void printGroup(const GroupRecord &Group, unsigned Indent = 0) { |
| 70 | out.indent(Indent * 2); |
| 71 | |
| 72 | if (enabledByDefault(Group)) |
| 73 | setColor(llvm::raw_ostream::GREEN); |
| 74 | else |
| 75 | setColor(llvm::raw_ostream::YELLOW); |
| 76 | |
| 77 | out << "-W" << Group.getName() << "\n"; |
| 78 | resetColor(); |
| 79 | |
| 80 | ++Indent; |
| 81 | for (const GroupRecord &GR : Group.subgroups()) { |
| 82 | printGroup(GR, Indent); |
| 83 | } |
| 84 | |
| 85 | if (Internal) { |
| 86 | for (const DiagnosticRecord &DR : Group.diagnostics()) { |
| 87 | if (ShowColors && !isIgnored(DR.DiagID)) |
| 88 | setColor(llvm::raw_ostream::GREEN); |
| 89 | out.indent(Indent * 2); |
| 90 | out << DR.getName(); |
| 91 | resetColor(); |
| 92 | out << "\n"; |
| 93 | } |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | int showGroup(StringRef RootGroup) { |
| 98 | ArrayRef<GroupRecord> AllGroups = getDiagnosticGroups(); |
| 99 | |
| 100 | if (RootGroup.size() > UINT16_MAX) { |
| 101 | llvm::errs() << "No such diagnostic group exists\n"; |
| 102 | return 1; |
| 103 | } |
| 104 | |
| 105 | const GroupRecord *Found = |
| 106 | std::lower_bound(AllGroups.begin(), AllGroups.end(), RootGroup); |
| 107 | |
| 108 | if (Found == AllGroups.end() || Found->getName() != RootGroup) { |
| 109 | llvm::errs() << "No such diagnostic group exists\n"; |
| 110 | return 1; |
| 111 | } |
| 112 | |
| 113 | printGroup(*Found); |
| 114 | |
| 115 | return 0; |
| 116 | } |
| 117 | |
| 118 | int showAll() { |
| 119 | ArrayRef<GroupRecord> AllGroups = getDiagnosticGroups(); |
| 120 | llvm::DenseSet<unsigned> NonRootGroupIDs; |
| 121 | |
| 122 | for (const GroupRecord &GR : AllGroups) { |
| 123 | for (auto SI = GR.subgroup_begin(), SE = GR.subgroup_end(); SI != SE; |
| 124 | ++SI) { |
| 125 | NonRootGroupIDs.insert((unsigned)SI.getID()); |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | assert(NonRootGroupIDs.size() < AllGroups.size()); |
| 130 | |
| 131 | for (unsigned i = 0, e = AllGroups.size(); i != e; ++i) { |
| 132 | if (!NonRootGroupIDs.count(i)) |
| 133 | printGroup(AllGroups[i]); |
| 134 | } |
| 135 | |
| 136 | return 0; |
| 137 | } |
| 138 | |
| 139 | void showKey() { |
| 140 | if (ShowColors) { |
| 141 | out << '\n'; |
| 142 | setColor(llvm::raw_ostream::GREEN); |
| 143 | out << "GREEN"; |
| 144 | resetColor(); |
| 145 | out << " = enabled by default\n\n"; |
| 146 | } |
| 147 | } |
| 148 | }; |
| 149 | |
| 150 | static void printUsage() { |
| 151 | llvm::errs() << "Usage: diagtool tree [--internal] [<diagnostic-group>]\n"; |
| 152 | } |
| 153 | |
| 154 | int TreeView::run(unsigned int argc, char **argv, llvm::raw_ostream &out) { |
| 155 | |
| 156 | bool Internal = false; |
| 157 | if (argc > 0) { |
| 158 | StringRef FirstArg(*argv); |
| 159 | if (FirstArg.equals("--internal")) { |
| 160 | Internal = true; |
| 161 | --argc; |
| 162 | ++argv; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | bool ShowAll = false; |
| 167 | StringRef RootGroup; |
| 168 | |
| 169 | switch (argc) { |
| 170 | case 0: |
| 171 | ShowAll = true; |
| 172 | break; |
| 173 | case 1: |
| 174 | RootGroup = argv[0]; |
| 175 | if (RootGroup.startswith("-W")) |
| 176 | RootGroup = RootGroup.substr(2); |
| 177 | if (RootGroup == "everything") |
| 178 | ShowAll = true; |
| 179 | |
| 180 | break; |
| 181 | default: |
| 182 | printUsage(); |
| 183 | return -1; |
| 184 | } |
| 185 | |
| 186 | TreePrinter TP(out); |
| 187 | TP.Internal = Internal; |
| 188 | TP.showKey(); |
| 189 | return ShowAll ? TP.showAll() : TP.showGroup(RootGroup); |
| 190 | } |
| 191 | |