EricWF updated this revision to Diff 146470.
EricWF added a comment.
- Update tests.
The last thing I want to tackle is improving parsing errors to at least name
the diagnostic being parsed. Naming *why* it's invalid if we don't provide its
name.
https://reviews.llvm.org/D46740
Files:
include/clang/Basic/Diagnostic.td
test/TableGen/DiagnosticBase.inc
test/TableGen/DiagnosticDocs.inc
test/TableGen/emit-diag-docs.td
test/TableGen/text-substitution.td
test/lit.cfg.py
utils/TableGen/ClangDiagnosticsEmitter.cpp
Index: utils/TableGen/ClangDiagnosticsEmitter.cpp
===================================================================
--- utils/TableGen/ClangDiagnosticsEmitter.cpp
+++ utils/TableGen/ClangDiagnosticsEmitter.cpp
@@ -14,12 +14,14 @@
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/PointerUnion.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Twine.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/Regex.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include "llvm/TableGen/StringToOffsetTable.h"
@@ -441,6 +443,717 @@
}
}
+namespace {
+enum PieceKind {
+ MultiPieceClass,
+ TextPieceClass,
+ PlaceholderPieceClass,
+ SelectPieceClass,
+ PluralPieceClass,
+ DiffPieceClass,
+ SubstitutionPieceClass,
+};
+
+enum ModifierType {
+ MT_Unknown,
+ MT_Placeholder,
+ MT_Select,
+ MT_Sub,
+ MT_Plural,
+ MT_Diff,
+ MT_Ordinal,
+ MT_S,
+ MT_Q,
+ MT_ObjCClass,
+ MT_ObjCInstance,
+};
+
+static StringRef getModifierName(ModifierType MT) {
+ switch (MT) {
+ case MT_Select:
+ return "select";
+ case MT_Sub:
+ return "sub";
+ case MT_Diff:
+ return "diff";
+ case MT_Plural:
+ return "plural";
+ case MT_Ordinal:
+ return "ordinal";
+ case MT_S:
+ return "s";
+ case MT_Q:
+ return "q";
+ case MT_Placeholder:
+ return "";
+ case MT_ObjCClass:
+ return "objcclass";
+ case MT_ObjCInstance:
+ return "objcinstance";
+ case MT_Unknown:
+ return "<<UNKNOWN>>";
+ }
+}
+
+struct Piece {
+ // This type and its derived classes are move-only.
+ Piece(PieceKind Kind) : ClassKind(Kind) {}
+ Piece(Piece const &O) = delete;
+ Piece &operator=(Piece const &) = delete;
+ virtual ~Piece() {}
+
+ PieceKind getPieceClass() const { return ClassKind; }
+ static bool classof(const Piece *) { return true; }
+
+private:
+ PieceKind ClassKind;
+};
+
+struct MultiPiece : Piece {
+ MultiPiece() : Piece(MultiPieceClass) {}
+ MultiPiece(std::vector<Piece *> Pieces)
+ : Piece(MultiPieceClass), Pieces(std::move(Pieces)) {}
+
+ std::vector<Piece *> Pieces;
+
+ static bool classof(const Piece *P) {
+ return P->getPieceClass() == MultiPieceClass;
+ }
+};
+
+struct TextPiece : Piece {
+ StringRef Role;
+ std::string Text;
+ TextPiece(StringRef Text, StringRef Role = "")
+ : Piece(TextPieceClass), Role(Role), Text(Text.str()) {}
+
+ static bool classof(const Piece *P) {
+ return P->getPieceClass() == TextPieceClass;
+ }
+};
+
+struct PlaceholderPiece : Piece {
+ ModifierType Kind;
+ int Index;
+ PlaceholderPiece(ModifierType Kind, int Index)
+ : Piece(PlaceholderPieceClass), Kind(Kind), Index(Index) {}
+
+ static bool classof(const Piece *P) {
+ return P->getPieceClass() == PlaceholderPieceClass;
+ }
+};
+
+struct SelectPiece : Piece {
+protected:
+ SelectPiece(PieceKind Kind, ModifierType ModKind)
+ : Piece(Kind), ModKind(ModKind) {}
+
+public:
+ SelectPiece(ModifierType ModKind) : SelectPiece(SelectPieceClass, ModKind) {}
+
+ ModifierType ModKind;
+ std::vector<Piece *> Options;
+ unsigned Index;
+
+ static bool classof(const Piece *P) {
+ return P->getPieceClass() == SelectPieceClass ||
+ P->getPieceClass() == PluralPieceClass;
+ }
+};
+
+struct PluralPiece : SelectPiece {
+ PluralPiece() : SelectPiece(PluralPieceClass, MT_Plural) {}
+
+ std::vector<Piece *> OptionPrefixes;
+ unsigned Index;
+
+ static bool classof(const Piece *P) {
+ return P->getPieceClass() == PluralPieceClass;
+ }
+};
+
+struct DiffPiece : Piece {
+ DiffPiece() : Piece(DiffPieceClass) {}
+
+ Piece *Options[2] = {};
+ unsigned Indexes[2] = {};
+
+ static bool classof(const Piece *P) {
+ return P->getPieceClass() == DiffPieceClass;
+ }
+};
+
+struct SubstitutionPiece : Piece {
+ SubstitutionPiece() : Piece(SubstitutionPieceClass) {}
+
+ std::string Name;
+ std::vector<unsigned> Modifiers;
+ Piece *Substitution = nullptr;
+
+ static bool classof(const Piece *P) {
+ return P->getPieceClass() == SubstitutionPieceClass;
+ }
+};
+
+/// Diagnostic text, parsed into pieces.
+
+
+struct DiagnosticTextBuilder {
+ DiagnosticTextBuilder(DiagnosticTextBuilder const &) = delete;
+ DiagnosticTextBuilder &operator=(DiagnosticTextBuilder const &) = delete;
+
+ DiagnosticTextBuilder(RecordKeeper &Records) {
+ for (auto *S : Records.getAllDerivedDefinitions("TextSubstitution"))
+ Substitutions.try_emplace(S->getName(),
+ DiagText(S->getValueAsString("Substitution")));
+ }
+
+ std::vector<std::string> buildForDocumentation(StringRef Role,
+ const Record *R);
+ std::string buildForDiagnostic(const Record *R);
+
+ Piece *getSubstitution(SubstitutionPiece *S) const {
+ auto It = Substitutions.find(S->Name);
+ if (It == Substitutions.end())
+ PrintFatalError("Failed to find substitution with name: " + S->Name);
+ return It->second.Root;
+ }
+
+private:
+ struct DiagText {
+ std::vector<Piece *> AllocatedPieces;
+ Piece *Root = nullptr;
+
+ template <class T, class... Args> T *create(Args &&... args) {
+ static_assert(std::is_base_of<Piece, T>::value, "must be piece");
+ T *Mem = new T(std::forward<Args>(args)...);
+ AllocatedPieces.push_back(Mem);
+ return Mem;
+ }
+
+ Piece *parseDiagText(StringRef &Text, bool Nested = false);
+
+ DiagText(StringRef Text) : Root(nullptr) { Root = parseDiagText(Text); }
+
+ DiagText(StringRef Kind, StringRef Text) : DiagText(Text) {
+ TextPiece *Prefix = create<TextPiece>(Kind, Kind);
+ Prefix->Text += ": ";
+ auto *MP = dyn_cast<MultiPiece>(Root);
+ if (!MP) {
+ MP = create<MultiPiece>();
+ MP->Pieces.push_back(Root);
+ Root = MP;
+ }
+ MP->Pieces.insert(MP->Pieces.begin(), Prefix);
+ }
+
+ public:
+ DiagText(DiagText &&O) noexcept
+ : AllocatedPieces(std::move(O.AllocatedPieces)), Root(O.Root) {
+ O.Root = nullptr;
+ }
+
+ ~DiagText() {
+ for (Piece *P : AllocatedPieces)
+ delete P;
+ }
+ };
+
+private:
+ template <class Derived> friend struct DiagTextVisitor;
+
+ // FIXME(EricWF): Use this to display more information when emitting fatal
+ // errors. Otherwise, it's nowhere close to clear what diagnostic caused
+ // the error.
+ const Record *EvaluatingRecord = nullptr;
+ StringMap<DiagText> Substitutions;
+};
+
+template <class Derived> struct DiagTextVisitor {
+ using ModifierMappingsType = Optional<std::vector<unsigned>>;
+
+private:
+ Derived &getDerived() { return static_cast<Derived &>(*this); }
+
+public:
+
+ std::vector<unsigned>
+ getSubstitutionMappings(SubstitutionPiece *P,
+ const ModifierMappingsType &Mappings) const {
+ std::vector<unsigned> NewMappings;
+ for (unsigned Idx : P->Modifiers)
+ NewMappings.push_back(mapIndex(Idx, Mappings));
+ return NewMappings;
+ }
+
+ struct SubstitutionContext {
+ SubstitutionContext(DiagTextVisitor &Visitor, SubstitutionPiece *P)
+ : Visitor(Visitor) {
+ Substitution = Visitor.Builder.getSubstitution(P);
+ OldMappings = std::move(Visitor.ModifierMappings);
+ std::vector<unsigned> NewMappings =
+ Visitor.getSubstitutionMappings(P, OldMappings);
+ Visitor.ModifierMappings = std::move(NewMappings);
+ }
+
+ ~SubstitutionContext() {
+ Visitor.ModifierMappings = std::move(OldMappings);
+ }
+
+ private:
+ DiagTextVisitor &Visitor;
+ Optional<std::vector<unsigned>> OldMappings;
+
+ public:
+ Piece *Substitution;
+ };
+
+public:
+ DiagTextVisitor(DiagnosticTextBuilder &Builder) : Builder(Builder) {}
+
+ void Visit(Piece *P) {
+ switch (P->getPieceClass()) {
+#define CASE(T) \
+ case T##PieceClass: \
+ return getDerived().Visit##T(static_cast<T##Piece *>(P))
+ CASE(Multi);
+ CASE(Text);
+ CASE(Placeholder);
+ CASE(Select);
+ CASE(Plural);
+ CASE(Diff);
+ CASE(Substitution);
+#undef CASE
+ }
+ }
+
+ void VisitSubstitution(SubstitutionPiece *P) {
+ SubstitutionContext Guard(*this, P);
+ Visit(Guard.Substitution);
+ }
+
+ unsigned mapIndex(unsigned Idx,
+ ModifierMappingsType const &ModifierMappings) const {
+ if (!ModifierMappings)
+ return Idx;
+ if (ModifierMappings->size() <= Idx)
+ PrintFatalError("Modifier value '" + std::to_string(Idx) +
+ "' is not valid for this mapping (has " +
+ std::to_string(ModifierMappings->size()) + " mappings)");
+ return (*ModifierMappings)[Idx];
+ }
+ unsigned mapIndex(unsigned Idx) const {
+ return mapIndex(Idx, ModifierMappings);
+ }
+
+protected:
+ DiagnosticTextBuilder &Builder;
+ ModifierMappingsType ModifierMappings;
+};
+
+void escapeRST(StringRef Str, std::string &Out) {
+ for (auto K : Str) {
+ if (StringRef("`*|_[]\\").count(K))
+ Out.push_back('\\');
+ Out.push_back(K);
+ }
+}
+
+template <typename It> void padToSameLength(It Begin, It End) {
+ size_t Width = 0;
+ for (It I = Begin; I != End; ++I)
+ Width = std::max(Width, I->size());
+ for (It I = Begin; I != End; ++I)
+ (*I) += std::string(Width - I->size(), ' ');
+}
+
+template <typename It> void makeTableRows(It Begin, It End) {
+ if (Begin == End)
+ return;
+ padToSameLength(Begin, End);
+ for (It I = Begin; I != End; ++I)
+ *I = "|" + *I + "|";
+}
+
+void makeRowSeparator(std::string &Str) {
+ for (char &K : Str)
+ K = (K == '|' ? '+' : '-');
+}
+
+struct DiagTextDocPrinter : DiagTextVisitor<DiagTextDocPrinter> {
+ using BaseTy = DiagTextVisitor<DiagTextDocPrinter>;
+ DiagTextDocPrinter(DiagnosticTextBuilder &Builder,
+ std::vector<std::string> &RST)
+ : BaseTy(Builder), RST(RST) {}
+
+ void gatherNodes(
+ Piece *OrigP, const ModifierMappingsType &CurrentMappings,
+ std::vector<std::pair<Piece *, ModifierMappingsType>> &Pieces) const {
+ if (auto *Sub = dyn_cast<SubstitutionPiece>(OrigP)) {
+ ModifierMappingsType NewMappings =
+ getSubstitutionMappings(Sub, CurrentMappings);
+ return gatherNodes(Builder.getSubstitution(Sub), NewMappings, Pieces);
+ }
+ if (auto *MD = dyn_cast<MultiPiece>(OrigP)) {
+ for (auto *Node : MD->Pieces)
+ gatherNodes(Node, CurrentMappings, Pieces);
+ return;
+ }
+ Pieces.push_back(std::make_pair(OrigP, CurrentMappings));
+ }
+
+ void VisitMulti(MultiPiece *P) {
+ if (P->Pieces.empty()) {
+ RST.push_back("");
+ return;
+ }
+
+ if (P->Pieces.size() == 1)
+ return Visit(P->Pieces[0]);
+
+ // Flatten the list of nodes, replacing any substitution pieces with the
+ // recursively flattened substituted node.
+ std::vector<std::pair<Piece *, ModifierMappingsType>> Pieces;
+ gatherNodes(P, ModifierMappings, Pieces);
+
+ std::string EmptyLinePrefix;
+ size_t Start = RST.size();
+ bool HasMultipleLines = true;
+ for (auto &NodePair : Pieces) {
+ std::vector<std::string> Lines;
+ DiagTextDocPrinter Visitor{Builder, Lines};
+ Visitor.ModifierMappings = NodePair.second;
+ Visitor.Visit(NodePair.first);
+
+ if (Lines.empty())
+ continue;
+
+ // We need a vertical separator if either this or the previous piece is a
+ // multi-line piece, or this is the last piece.
+ const char *Separator = (Lines.size() > 1 || HasMultipleLines) ? "|" : "";
+ HasMultipleLines = Lines.size() > 1;
+
+ if (Start + Lines.size() > RST.size())
+ RST.resize(Start + Lines.size(), EmptyLinePrefix);
+
+ padToSameLength(Lines.begin(), Lines.end());
+ for (size_t I = 0; I != Lines.size(); ++I)
+ RST[Start + I] += Separator + Lines[I];
+ std::string Empty(Lines[0].size(), ' ');
+ for (size_t I = Start + Lines.size(); I != RST.size(); ++I)
+ RST[I] += Separator + Empty;
+ EmptyLinePrefix += Separator + Empty;
+ }
+ for (size_t I = Start; I != RST.size(); ++I)
+ RST[I] += "|";
+ EmptyLinePrefix += "|";
+
+ makeRowSeparator(EmptyLinePrefix);
+ RST.insert(RST.begin() + Start, EmptyLinePrefix);
+ RST.insert(RST.end(), EmptyLinePrefix);
+ }
+
+ void VisitText(TextPiece *P) {
+ RST.push_back("");
+ auto &S = RST.back();
+
+ StringRef T = P->Text;
+ while (!T.empty() && T.front() == ' ') {
+ RST.back() += " |nbsp| ";
+ T = T.drop_front();
+ }
+
+ std::string Suffix;
+ while (!T.empty() && T.back() == ' ') {
+ Suffix += " |nbsp| ";
+ T = T.drop_back();
+ }
+
+ if (!T.empty()) {
+ S += ':';
+ S += P->Role;
+ S += ":`";
+ escapeRST(T, S);
+ S += '`';
+ }
+
+ S += Suffix;
+ }
+
+ void VisitPlaceholder(PlaceholderPiece *P) {
+ RST.push_back(std::string(":placeholder:`") +
+ char('A' + mapIndex(P->Index)) + "`");
+ }
+
+ void VisitSelect(SelectPiece *P) {
+ std::vector<size_t> SeparatorIndexes;
+ SeparatorIndexes.push_back(RST.size());
+ RST.emplace_back();
+ for (auto *O : P->Options) {
+ Visit(O);
+ SeparatorIndexes.push_back(RST.size());
+ RST.emplace_back();
+ }
+
+ makeTableRows(RST.begin() + SeparatorIndexes.front(),
+ RST.begin() + SeparatorIndexes.back() + 1);
+ for (size_t I : SeparatorIndexes)
+ makeRowSeparator(RST[I]);
+ }
+
+ void VisitPlural(PluralPiece *P) { VisitSelect(P); }
+
+ void VisitDiff(DiffPiece *P) { Visit(P->Options[1]); }
+
+ std::vector<std::string> &RST;
+};
+
+struct DiagTextPrinter : DiagTextVisitor<DiagTextPrinter> {
+public:
+ using BaseTy = DiagTextVisitor<DiagTextPrinter>;
+ DiagTextPrinter(DiagnosticTextBuilder &Builder, std::string &Result)
+ : BaseTy(Builder), Result(Result) {}
+
+ void VisitMulti(MultiPiece *P) {
+ for (auto *Child : P->Pieces)
+ Visit(Child);
+ }
+ void VisitText(TextPiece *P) { Result += P->Text; }
+ void VisitPlaceholder(PlaceholderPiece *P) {
+ Result += "%";
+ Result += getModifierName(P->Kind);
+ addInt(mapIndex(P->Index));
+ }
+ void VisitSelect(SelectPiece *P) {
+ Result += "%";
+ Result += getModifierName(P->ModKind);
+ if (P->ModKind == MT_Select) {
+ Result += "{";
+ for (auto *D : P->Options) {
+ Visit(D);
+ Result += '|';
+ }
+ if (!P->Options.empty())
+ Result.erase(--Result.end());
+ Result += '}';
+ }
+ addInt(mapIndex(P->Index));
+ }
+
+ void VisitPlural(PluralPiece *P) {
+ Result += "%plural{";
+ assert(P->Options.size() == P->OptionPrefixes.size());
+ for (unsigned I = 0, End = P->Options.size(); I < End; ++I) {
+ if (P->OptionPrefixes[I])
+ Visit(P->OptionPrefixes[I]);
+ Visit(P->Options[I]);
+ Result += "|";
+ }
+ if (!P->Options.empty())
+ Result.erase(--Result.end());
+ Result += '}';
+ addInt(mapIndex(P->Index));
+ }
+
+ void VisitDiff(DiffPiece *P) {
+ Result += "%diff{";
+ Visit(P->Options[0]);
+ Result += "|";
+ Visit(P->Options[1]);
+ Result += "}";
+ addInt(mapIndex(P->Indexes[0]));
+ Result += ",";
+ addInt(mapIndex(P->Indexes[1]));
+ }
+
+ void addInt(unsigned Val) {
+ assert(Val < 10);
+ Result += static_cast<char>('0' + Val);
+ }
+
+ std::string &Result;
+};
+
+
+unsigned parseModifier(StringRef &Text) {
+ if (Text.empty() || !isdigit(Text[0]))
+ PrintFatalError("expected modifier in diagnostic");
+
+ unsigned Val = Text[0] - '0';
+ Text = Text.drop_front();
+ return Val;
+}
+
+int Stack;
+struct StackGuard {
+
+ StackGuard() {
+ ++Stack;
+ assert(Stack < 1024);
+ }
+ ~StackGuard() { --Stack; }
+};
+Piece *DiagnosticTextBuilder::DiagText::parseDiagText(StringRef &Text,
+ bool Nested) {
+ StackGuard Guard;
+ std::vector<Piece *> Parsed;
+
+ while (!Text.empty()) {
+ size_t End = (size_t)-2;
+ do
+ End = Nested ? Text.find_first_of("%|}", End + 2)
+ : Text.find_first_of('%', End + 2);
+ while (End < Text.size() - 1 && Text[End] == '%' &&
+ (Text[End + 1] == '%' || Text[End + 1] == '|'));
+
+ if (End) {
+ Parsed.push_back(create<TextPiece>(Text.slice(0, End), "diagtext"));
+ Text = Text.slice(End, StringRef::npos);
+ if (Text.empty())
+ break;
+ }
+
+ if (Text[0] == '|' || Text[0] == '}')
+ break;
+
+ // Drop the '%'.
+ Text = Text.drop_front();
+
+ // Extract the (optional) modifier.
+ size_t ModLength = Text.find_first_of("0123456789{");
+ StringRef Modifier = Text.slice(0, ModLength);
+ Text = Text.slice(ModLength, StringRef::npos);
+ ModifierType ModType = llvm::StringSwitch<ModifierType>{Modifier}
+ .Case("select", MT_Select)
+ .Case("sub", MT_Sub)
+ .Case("diff", MT_Diff)
+ .Case("plural", MT_Plural)
+ .Case("s", MT_S)
+ .Case("ordinal", MT_Ordinal)
+ .Case("q", MT_Q)
+ .Case("", MT_Placeholder)
+ .Case("objcclass", MT_ObjCClass)
+ .Case("objcinstance", MT_ObjCInstance)
+ .Default(MT_Unknown);
+
+ switch (ModType) {
+ case MT_Unknown:
+ PrintFatalError("Unknown modifier type: " + Modifier);
+ case MT_Select: {
+ SelectPiece *Select = create<SelectPiece>(MT_Select);
+ do {
+ Text = Text.drop_front(); // '{' or '|'
+ Select->Options.push_back(parseDiagText(Text, true));
+ assert(!Text.empty() && "malformed %select");
+ } while (Text.front() == '|');
+ // Drop the trailing '}'.
+ Text = Text.drop_front(1);
+ Select->Index = parseModifier(Text);
+ Parsed.push_back(Select);
+ continue;
+ }
+ case MT_Plural: {
+ PluralPiece *Plural = create<PluralPiece>();
+ do {
+ Text = Text.drop_front(); // '{' or '|'
+ size_t End = Text.find_first_of(":");
+ if (End == StringRef::npos)
+ PrintFatalError("expected ':' while parsing %plural");
+ ++End;
+ assert(!Text.empty());
+ Plural->OptionPrefixes.push_back(
+ create<TextPiece>(Text.slice(0, End), "diagtext"));
+ Text = Text.slice(End, StringRef::npos);
+ Plural->Options.push_back(parseDiagText(Text, true));
+ assert(!Text.empty() && "malformed %select");
+ } while (Text.front() == '|');
+ // Drop the trailing '}'.
+ Text = Text.drop_front(1);
+ Plural->Index = parseModifier(Text);
+ Parsed.push_back(Plural);
+ continue;
+ }
+ case MT_Sub: {
+ SubstitutionPiece *Sub = create<SubstitutionPiece>();
+ Text = Text.drop_front(); // '{'
+ size_t NameSize = Text.find_first_of('}');
+ assert(NameSize != size_t(-1) && "failed to find the end of the name");
+ assert(NameSize != 0 && "empty name?");
+ Sub->Name = Text.substr(0, NameSize).str();
+ Text = Text.drop_front(NameSize);
+ Text = Text.drop_front(); // '}'
+ if (!Text.empty()) {
+ while (true) {
+ if (!isdigit(Text[0]))
+ break;
+ Sub->Modifiers.push_back(parseModifier(Text));
+ if (Text.empty() || Text[0] != ',')
+ break;
+ Text = Text.drop_front(); // ','
+ assert(!Text.empty() && isdigit(Text[0]) &&
+ "expected another modifier");
+ }
+ }
+ Parsed.push_back(Sub);
+ continue;
+ }
+ case MT_Diff: {
+ DiffPiece *Diff = create<DiffPiece>();
+ Text = Text.drop_front(); // '{'
+ Diff->Options[0] = parseDiagText(Text, true);
+ Text = Text.drop_front(); // '|'
+ Diff->Options[1] = parseDiagText(Text, true);
+
+ Text = Text.drop_front(); // '}'
+ Diff->Indexes[0] = parseModifier(Text);
+ Text = Text.drop_front(); // ','
+ Diff->Indexes[1] = parseModifier(Text);
+ Parsed.push_back(Diff);
+ continue;
+ }
+ case MT_S: {
+ SelectPiece *Select = create<SelectPiece>(ModType);
+ Select->Options.push_back(create<TextPiece>(""));
+ Select->Options.push_back(create<TextPiece>("s", "diagtext"));
+ Select->Index = parseModifier(Text);
+ Parsed.push_back(Select);
+ continue;
+ }
+ case MT_Q:
+ case MT_Placeholder:
+ case MT_ObjCClass:
+ case MT_ObjCInstance:
+ case MT_Ordinal: {
+ Parsed.push_back(create<PlaceholderPiece>(ModType, parseModifier(Text)));
+ continue;
+ }
+ }
+ }
+
+ return create<MultiPiece>(Parsed);
+}
+
+std::vector<std::string>
+DiagnosticTextBuilder::buildForDocumentation(StringRef Role, const Record *R) {
+ EvaluatingRecord = R;
+ std::string Text = R->getValueAsString("Text");
+ DiagText D(Role, Text);
+ std::vector<std::string> Result;
+ DiagTextDocPrinter{*this, Result}.Visit(D.Root);
+ return Result;
+}
+
+std::string DiagnosticTextBuilder::buildForDiagnostic(const Record *R) {
+ EvaluatingRecord = R;
+ std::string Text = R->getValueAsString("Text");
+ DiagText D(Text);
+ std::string Result;
+ DiagTextPrinter{*this, Result}.Visit(D.Root);
+ return Result;
+}
+
+} // namespace
+
//===----------------------------------------------------------------------===//
// Warning Tables (.inc file) generation.
//===----------------------------------------------------------------------===//
@@ -455,6 +1168,7 @@
return ClsName == "CLASS_REMARK";
}
+
/// ClangDiagsDefsEmitter - The top-level class emits .def files containing
/// declarations of Clang diagnostics.
namespace clang {
@@ -470,8 +1184,9 @@
OS << "#endif\n\n";
}
- const std::vector<Record*> &Diags =
- Records.getAllDerivedDefinitions("Diagnostic");
+ DiagnosticTextBuilder DiagTextBuilder(Records);
+
+ std::vector<Record *> Diags = Records.getAllDerivedDefinitions("Diagnostic");
std::vector<Record*> DiagGroups
= Records.getAllDerivedDefinitions("DiagGroup");
@@ -520,7 +1235,7 @@
// Description string.
OS << ", \"";
- OS.write_escaped(R.getValueAsString("Text")) << '"';
+ OS.write_escaped(DiagTextBuilder.buildForDiagnostic(&R)) << '"';
// Warning associated with the diagnostic. This is stored as an index into
// the alphabetically sorted warning table.
@@ -882,261 +1597,6 @@
namespace docs {
namespace {
-/// Diagnostic text, parsed into pieces.
-struct DiagText {
- struct Piece {
- // This type and its derived classes are move-only.
- Piece() {}
- Piece(Piece &&O) {}
- Piece &operator=(Piece &&O) { return *this; }
-
- virtual void print(std::vector<std::string> &RST) = 0;
- virtual ~Piece() {}
- };
- struct TextPiece : Piece {
- StringRef Role;
- std::string Text;
- void print(std::vector<std::string> &RST) override;
- };
- struct PlaceholderPiece : Piece {
- int Index;
- void print(std::vector<std::string> &RST) override;
- };
- struct SelectPiece : Piece {
- SelectPiece() {}
- SelectPiece(SelectPiece &&O) noexcept : Options(std::move(O.Options)) {}
- std::vector<DiagText> Options;
- void print(std::vector<std::string> &RST) override;
- };
-
- std::vector<std::unique_ptr<Piece>> Pieces;
-
- DiagText();
- DiagText(DiagText &&O) noexcept : Pieces(std::move(O.Pieces)) {}
-
- DiagText(StringRef Text);
- DiagText(StringRef Kind, StringRef Text);
-
- template<typename P> void add(P Piece) {
- Pieces.push_back(llvm::make_unique<P>(std::move(Piece)));
- }
- void print(std::vector<std::string> &RST);
-};
-
-DiagText parseDiagText(StringRef &Text, bool Nested = false) {
- DiagText Parsed;
-
- while (!Text.empty()) {
- size_t End = (size_t)-2;
- do
- End = Nested ? Text.find_first_of("%|}", End + 2)
- : Text.find_first_of('%', End + 2);
- while (End < Text.size() - 1 && Text[End] == '%' && Text[End + 1] == '%');
-
- if (End) {
- DiagText::TextPiece Piece;
- Piece.Role = "diagtext";
- Piece.Text = Text.slice(0, End);
- Parsed.add(std::move(Piece));
- Text = Text.slice(End, StringRef::npos);
- if (Text.empty()) break;
- }
-
- if (Text[0] == '|' || Text[0] == '}')
- break;
-
- // Drop the '%'.
- Text = Text.drop_front();
-
- // Extract the (optional) modifier.
- size_t ModLength = Text.find_first_of("0123456789{");
- StringRef Modifier = Text.slice(0, ModLength);
- Text = Text.slice(ModLength, StringRef::npos);
-
- // FIXME: Handle %ordinal here.
- if (Modifier == "select" || Modifier == "plural") {
- DiagText::SelectPiece Select;
- do {
- Text = Text.drop_front();
- if (Modifier == "plural")
- while (Text[0] != ':')
- Text = Text.drop_front();
- Select.Options.push_back(parseDiagText(Text, true));
- assert(!Text.empty() && "malformed %select");
- } while (Text.front() == '|');
- Parsed.add(std::move(Select));
-
- // Drop the trailing '}n'.
- Text = Text.drop_front(2);
- continue;
- }
-
- // For %diff, just take the second alternative (tree diagnostic). It would
- // be preferable to take the first one, and replace the $ with the suitable
- // placeholders.
- if (Modifier == "diff") {
- Text = Text.drop_front(); // '{'
- parseDiagText(Text, true);
- Text = Text.drop_front(); // '|'
-
- DiagText D = parseDiagText(Text, true);
- for (auto &P : D.Pieces)
- Parsed.Pieces.push_back(std::move(P));
-
- Text = Text.drop_front(4); // '}n,m'
- continue;
- }
-
- if (Modifier == "s") {
- Text = Text.drop_front();
- DiagText::SelectPiece Select;
- Select.Options.push_back(DiagText(""));
- Select.Options.push_back(DiagText("s"));
- Parsed.add(std::move(Select));
- continue;
- }
-
- assert(!Text.empty() && isdigit(Text[0]) && "malformed placeholder");
- DiagText::PlaceholderPiece Placeholder;
- Placeholder.Index = Text[0] - '0';
- Parsed.add(std::move(Placeholder));
- Text = Text.drop_front();
- continue;
- }
- return Parsed;
-}
-
-DiagText::DiagText() {}
-
-DiagText::DiagText(StringRef Text) : DiagText(parseDiagText(Text, false)) {}
-
-DiagText::DiagText(StringRef Kind, StringRef Text) : DiagText(parseDiagText(Text, false)) {
- TextPiece Prefix;
- Prefix.Role = Kind;
- Prefix.Text = Kind;
- Prefix.Text += ": ";
- Pieces.insert(Pieces.begin(),
- llvm::make_unique<TextPiece>(std::move(Prefix)));
-}
-
-void escapeRST(StringRef Str, std::string &Out) {
- for (auto K : Str) {
- if (StringRef("`*|_[]\\").count(K))
- Out.push_back('\\');
- Out.push_back(K);
- }
-}
-
-template<typename It> void padToSameLength(It Begin, It End) {
- size_t Width = 0;
- for (It I = Begin; I != End; ++I)
- Width = std::max(Width, I->size());
- for (It I = Begin; I != End; ++I)
- (*I) += std::string(Width - I->size(), ' ');
-}
-
-template<typename It> void makeTableRows(It Begin, It End) {
- if (Begin == End) return;
- padToSameLength(Begin, End);
- for (It I = Begin; I != End; ++I)
- *I = "|" + *I + "|";
-}
-
-void makeRowSeparator(std::string &Str) {
- for (char &K : Str)
- K = (K == '|' ? '+' : '-');
-}
-
-void DiagText::print(std::vector<std::string> &RST) {
- if (Pieces.empty()) {
- RST.push_back("");
- return;
- }
-
- if (Pieces.size() == 1)
- return Pieces[0]->print(RST);
-
- std::string EmptyLinePrefix;
- size_t Start = RST.size();
- bool HasMultipleLines = true;
- for (auto &P : Pieces) {
- std::vector<std::string> Lines;
- P->print(Lines);
- if (Lines.empty())
- continue;
-
- // We need a vertical separator if either this or the previous piece is a
- // multi-line piece, or this is the last piece.
- const char *Separator = (Lines.size() > 1 || HasMultipleLines) ? "|" : "";
- HasMultipleLines = Lines.size() > 1;
-
- if (Start + Lines.size() > RST.size())
- RST.resize(Start + Lines.size(), EmptyLinePrefix);
-
- padToSameLength(Lines.begin(), Lines.end());
- for (size_t I = 0; I != Lines.size(); ++I)
- RST[Start + I] += Separator + Lines[I];
- std::string Empty(Lines[0].size(), ' ');
- for (size_t I = Start + Lines.size(); I != RST.size(); ++I)
- RST[I] += Separator + Empty;
- EmptyLinePrefix += Separator + Empty;
- }
- for (size_t I = Start; I != RST.size(); ++I)
- RST[I] += "|";
- EmptyLinePrefix += "|";
-
- makeRowSeparator(EmptyLinePrefix);
- RST.insert(RST.begin() + Start, EmptyLinePrefix);
- RST.insert(RST.end(), EmptyLinePrefix);
-}
-
-void DiagText::TextPiece::print(std::vector<std::string> &RST) {
- RST.push_back("");
- auto &S = RST.back();
-
- StringRef T = Text;
- while (!T.empty() && T.front() == ' ') {
- RST.back() += " |nbsp| ";
- T = T.drop_front();
- }
-
- std::string Suffix;
- while (!T.empty() && T.back() == ' ') {
- Suffix += " |nbsp| ";
- T = T.drop_back();
- }
-
- if (!T.empty()) {
- S += ':';
- S += Role;
- S += ":`";
- escapeRST(T, S);
- S += '`';
- }
-
- S += Suffix;
-}
-
-void DiagText::PlaceholderPiece::print(std::vector<std::string> &RST) {
- RST.push_back(std::string(":placeholder:`") + char('A' + Index) + "`");
-}
-
-void DiagText::SelectPiece::print(std::vector<std::string> &RST) {
- std::vector<size_t> SeparatorIndexes;
- SeparatorIndexes.push_back(RST.size());
- RST.emplace_back();
- for (auto &O : Options) {
- O.print(RST);
- SeparatorIndexes.push_back(RST.size());
- RST.emplace_back();
- }
-
- makeTableRows(RST.begin() + SeparatorIndexes.front(),
- RST.begin() + SeparatorIndexes.back() + 1);
- for (size_t I : SeparatorIndexes)
- makeRowSeparator(RST[I]);
-}
-
bool isRemarkGroup(const Record *DiagGroup,
const std::map<std::string, GroupInfo> &DiagsInGroup) {
bool AnyRemarks = false, AnyNonRemarks = false;
@@ -1181,12 +1641,13 @@
OS << Str << "\n" << std::string(Str.size(), Kind) << "\n";
}
-void writeDiagnosticText(StringRef Role, StringRef Text, raw_ostream &OS) {
+void writeDiagnosticText(DiagnosticTextBuilder &Builder, const Record *R,
+ StringRef Role, raw_ostream &OS) {
+ StringRef Text = R->getValueAsString("Text");
if (Text == "%0")
OS << "The text of this diagnostic is not controlled by Clang.\n\n";
else {
- std::vector<std::string> Out;
- DiagText(Role, Text).print(Out);
+ std::vector<std::string> Out = Builder.buildForDocumentation(Role, R);
for (auto &Line : Out)
OS << Line << "\n";
OS << "\n";
@@ -1209,8 +1670,11 @@
OS << Documentation->getValueAsString("Intro") << "\n";
+ DiagnosticTextBuilder Builder(Records);
+
std::vector<Record*> Diags =
Records.getAllDerivedDefinitions("Diagnostic");
+
std::vector<Record*> DiagGroups =
Records.getAllDerivedDefinitions("DiagGroup");
llvm::sort(DiagGroups.begin(), DiagGroups.end(), diagGroupBeforeByName);
@@ -1300,7 +1764,8 @@
Severity[0] = tolower(Severity[0]);
if (Severity == "ignored")
Severity = IsRemarkGroup ? "remark" : "warning";
- writeDiagnosticText(Severity, D->getValueAsString("Text"), OS);
+
+ writeDiagnosticText(Builder, D, Severity, OS);
}
}
Index: test/lit.cfg.py
===================================================================
--- test/lit.cfg.py
+++ test/lit.cfg.py
@@ -57,7 +57,8 @@
tool_dirs = [config.clang_tools_dir, config.llvm_tools_dir]
tools = [
- 'c-index-test', 'clang-check', 'clang-diff', 'clang-format', 'opt',
+ 'c-index-test', 'clang-check', 'clang-diff', 'clang-format', 'clang-tblgen',
+ 'opt',
ToolSubst('%clang_func_map', command=FindTool(
'clang-func-mapping'), unresolved='ignore'),
]
Index: test/TableGen/text-substitution.td
===================================================================
--- /dev/null
+++ test/TableGen/text-substitution.td
@@ -0,0 +1,40 @@
+// RUN: clang-tblgen -gen-clang-diags-defs -I%S %s -o - 2>&1 | \
+// RUN: FileCheck --strict-whitespace %s
+include "DiagnosticBase.inc"
+
+def yes_no : TextSubstitution<"%select{yes|no}0">;
+def says_yes : TextSubstitution<"%1 says %sub{yes_no}0">;
+
+
+def sub_test_rewrite : TextSubstitution<
+ "SELECT! %select{one|two}3. "
+ "DIFF! %diff{$ is $|or not}0,1. "
+ "PLURAL! %plural{0:zero items|[1,2]:one or two item|:multiple items}2. "
+ "ORDINAL! %ordinal1. "
+ "S! item%s2. "
+ "Q! %q4. "
+ "PLACEHOLDER! %5."
+ "OBJCCLASS! %objcclass0. "
+ "OBJCINSTANCE! %objcinstance1. ">;
+
+// CHECK: DIAG(test_rewrite,
+// CHECK-SAME: SELECT! %select{one|two}2.
+// CHECK-SAME: DIFF! %diff{$ is $|or not}5,4.
+// CHECK-SAME: PLURAL! %plural{0:zero items|[1,2]:one or two item|:multiple items}3.
+// CHECK-SAME: ORDINAL! %ordinal4.
+// CHECK-SAME: S! item%s3.
+// CHECK-SAME: Q! %q1.
+// CHECK-SAME: PLACEHOLDER! %0.OBJCCLASS!
+// CHECK-SAME: %objcclass5. OBJCINSTANCE!
+// CHECK-SAME: %objcinstance4. DONE!",
+def test_rewrite: Error<"%sub{sub_test_rewrite}5,4,3,2,1,0 DONE!">;
+
+def test_sub_basic : Error<"%sub{yes_no}0">;
+// CHECK: test_sub_basic
+// CHECK-SAME: "%select{yes|no}0",
+
+def test_sub_nested : Error<"%sub{says_yes}2,4">;
+// CHECK: test_sub_nested
+// CHECK-SAME: "%4 says %select{yes|no}2",
+
+
Index: test/TableGen/emit-diag-docs.td
===================================================================
--- /dev/null
+++ test/TableGen/emit-diag-docs.td
@@ -0,0 +1,78 @@
+// RUN: clang-tblgen -gen-diag-docs -I%S %s -o - 2>&1 | \
+// RUN: FileCheck --strict-whitespace %s
+include "DiagnosticBase.inc"
+
+def MyGroup : DiagGroup<"MyGroupName">;
+
+def MyKinds : TextSubstitution<"%select{food|forests}0">;
+def MyGoodBad : TextSubstitution<"%select{good|bad}0">;
+def MySubNested : TextSubstitution<"%sub{MyGoodBad}1 %sub{MyKinds}2 are %sub{MyGoodBad}1 according to %0">;
+
+// CHECK: -WMyGroupName
+// CHECK: **Diagnostic text:**
+
+let Group = MyGroup in {
+
+// CHECK: |:warning:`warning:` |nbsp| :diagtext:`this is my diff text`|
+// CHECK-NEXT: +-----------------------------------------------------------+
+def CheckDiff : Warning<"%diff{$ is not $|this is my diff text}0,1">;
+
+
+// CHECK: |:warning:`warning:` |nbsp| :placeholder:`A` |nbsp| :diagtext:`is my modifier test` |nbsp| :placeholder:`B`|
+// CHECK-NEXT: +----------------------------------------------------------------------------------------------------------+
+def CheckModifier : Warning<"%0 is my modifier test %1">;
+
+
+// CHECK: |:warning:`warning:` |nbsp| :diagtext:`This is the` |nbsp| :placeholder:`A` |nbsp| :diagtext:`test I've written`|
+// CHECK-NEXT: +---------------------------------------------------------------------------------------------------------------+
+def CheckOrdinal : Warning<"This is the %ordinal0 test I've written">;
+
+// CHECK: |:warning:`warning:` |nbsp| :diagtext:`I wrote` |nbsp| |+----------------+| |nbsp| :diagtext:`tests`|
+// CHECK-NEXT: | ||:diagtext:`no` || |
+// CHECK-NEXT: | |+----------------+| |
+// CHECK-NEXT: | ||:diagtext:`one` || |
+// CHECK-NEXT: | |+----------------+| |
+// CHECK-NEXT: | ||:placeholder:`A`|| |
+// CHECK-NEXT: | |+----------------+| |
+// CHECK-NEXT: +------------------------------------------------------+------------------+-------------------------+
+def CheckPlural : Warning<"I wrote %plural{0:no|1:one|:%0}0 tests">;
+
+
+// CHECK: |:warning:`warning:` |nbsp| :diagtext:`bad type` |nbsp| :placeholder:`A`|
+// CHECK-NEXT: +-----------------------------------------------------------------------+
+def CheckQ : Warning<"bad type %q0">;
+
+
+// CHECK: |:warning:`warning:` |nbsp| :diagtext:`My test`|+-------------+| |nbsp| :diagtext:`are the best!`|
+// CHECK-NEXT: | || || |
+// CHECK-NEXT: | |+-------------+| |
+// CHECK-NEXT: | ||:diagtext:`s`|| |
+// CHECK-NEXT: | |+-------------+| |
+// CHECK-NEXT: +----------------------------------------------+---------------+---------------------------------+
+def CheckS : Warning<"My test%s0 are the best!">;
+
+
+// CHECK: |:warning:`warning:` |nbsp| :diagtext:`this is my select test:` |nbsp| |+---------------+|
+// CHECK-NEXT: | ||:diagtext:`one`||
+// CHECK-NEXT: | |+---------------+|
+// CHECK-NEXT: | ||:diagtext:`two`||
+// CHECK-NEXT: | |+---------------+|
+// CHECK-NEXT: +----------------------------------------------------------------------+-----------------+
+def CheckSelect : Warning<"this is my select test: %select{one|two}0 and it is %select{good|bad}1">;
+
+
+// CHECK: +-------------------------------------------------------+------------------+--------+---------------------+-------------------------------+------------------+--------------------------------------------------------+
+// CHECK-NEXT: |:warning:`warning:` |nbsp| :diagtext:`They say` |nbsp| |+----------------+| |nbsp| |+-------------------+| |nbsp| :diagtext:`are` |nbsp| |+----------------+| |nbsp| :diagtext:`according to` |nbsp| :placeholder:`D`|
+// CHECK-NEXT: | ||:diagtext:`good`|| ||:diagtext:`food` || ||:diagtext:`good`|| |
+// CHECK-NEXT: | |+----------------+| |+-------------------+| |+----------------+| |
+// CHECK-NEXT: | ||:diagtext:`bad` || ||:diagtext:`forests`|| ||:diagtext:`bad` || |
+// CHECK-NEXT: | |+----------------+| |+-------------------+| |+----------------+| |
+// CHECK-NEXT: +-------------------------------------------------------+------------------+--------+---------------------+-------------------------------+------------------+--------------------------------------------------------+
+def CheckSubstitution : Warning<"They say %sub{MySubNested}3,1,0">;
+
+
+// CHECK: |:warning:`warning:` |nbsp| :diagtext:`this is my warning text`|
+// CHECK-NEXT: +--------------------------------------------------------------+
+def CheckText : Warning<"this is my warning text">;
+
+}
Index: test/TableGen/DiagnosticDocs.inc
===================================================================
--- /dev/null
+++ test/TableGen/DiagnosticDocs.inc
@@ -0,0 +1,75 @@
+
+def GlobalDocumentation {
+ code Intro =[{..
+ -------------------------------------------------------------------
+ NOTE: This file is automatically generated by running clang-tblgen
+ -gen-diag-docs. Do not edit this file by hand!!
+ -------------------------------------------------------------------
+
+.. Add custom CSS to output. FIXME: This should be put into <head> rather
+ than the start of <body>.
+.. raw:: html
+
+ <style>
+ table.docutils {
+ width: 1px;
+ }
+ table.docutils td {
+ border: none;
+ padding: 0 0 0 0.2em;
+ vertical-align: middle;
+ white-space: nowrap;
+ width: 1px;
+ font-family: monospace;
+ }
+ table.docutils tr + tr {
+ border-top: 0.2em solid #aaa;
+ }
+ .error {
+ font-family: monospace;
+ font-weight: bold;
+ color: #c00;
+ }
+ .warning {
+ font-family: monospace;
+ font-weight: bold;
+ color: #80a;
+ }
+ .remark {
+ font-family: monospace;
+ font-weight: bold;
+ color: #00c;
+ }
+ .diagtext {
+ font-family: monospace;
+ font-weight: bold;
+ }
+ </style>
+
+.. FIXME: rST doesn't support formatting this, so we format all <td> elements
+ as monospace font face instead.
+.. |nbsp| unicode:: 0xA0
+ :trim:
+
+.. Roles generated by clang-tblgen.
+.. role:: error
+.. role:: warning
+.. role:: remark
+.. role:: diagtext
+.. role:: placeholder(emphasis)
+
+=========================
+Diagnostic flags in Clang
+=========================
+.. contents::
+ :local:
+
+Introduction
+============
+
+This page lists the diagnostic flags currently supported by Clang.
+
+Diagnostic flags
+================
+}];
+}
Index: test/TableGen/DiagnosticBase.inc
===================================================================
--- test/TableGen/DiagnosticBase.inc
+++ test/TableGen/DiagnosticBase.inc
@@ -1,35 +1,130 @@
-// Define the diagnostic mappings.
-class DiagMapping;
-def MAP_IGNORE : DiagMapping;
-def MAP_WARNING : DiagMapping;
-def MAP_ERROR : DiagMapping;
-def MAP_FATAL : DiagMapping;
+//===--- Diagnostic.td - C Language Family Diagnostic Handling ------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the TableGen core definitions for the diagnostics
+// and diagnostic control.
+//
+//===----------------------------------------------------------------------===//
+
+// See the Internals Manual, section The Diagnostics Subsystem for an overview.
+
+// Define the diagnostic severities.
+class Severity<string N> {
+ string Name = N;
+}
+def SEV_Ignored : Severity<"Ignored">;
+def SEV_Remark : Severity<"Remark">;
+def SEV_Warning : Severity<"Warning">;
+def SEV_Error : Severity<"Error">;
+def SEV_Fatal : Severity<"Fatal">;
// Define the diagnostic classes.
class DiagClass;
def CLASS_NOTE : DiagClass;
+def CLASS_REMARK : DiagClass;
def CLASS_WARNING : DiagClass;
def CLASS_EXTENSION : DiagClass;
def CLASS_ERROR : DiagClass;
+// Responses to a diagnostic in a SFINAE context.
+class SFINAEResponse;
+def SFINAE_SubstitutionFailure : SFINAEResponse;
+def SFINAE_Suppress : SFINAEResponse;
+def SFINAE_Report : SFINAEResponse;
+def SFINAE_AccessControl : SFINAEResponse;
+
+// Textual substitutions which may be performed on the text of diagnostics
+class TextSubstitution<string Text> {
+ string Substitution = Text;
+ // TODO: These are only here to allow substitutions to be declared inline with
+ // diagnostics
+ string Component = "";
+ string CategoryName = "";
+}
+
+// Diagnostic Categories. These can be applied to groups or individual
+// diagnostics to specify a category.
+class DiagCategory<string Name> {
+ string CategoryName = Name;
+}
+
+// Diagnostic Groups.
class DiagGroup<string Name, list<DiagGroup> subgroups = []> {
string GroupName = Name;
list<DiagGroup> SubGroups = subgroups;
string CategoryName = "";
+ code Documentation = [{}];
}
class InGroup<DiagGroup G> { DiagGroup Group = G; }
+//class IsGroup<string Name> { DiagGroup Group = DiagGroup<Name>; }
+
+include "DiagnosticDocs.inc"
// All diagnostics emitted by the compiler are an indirect subclass of this.
-class Diagnostic<string text, DiagClass DC, DiagMapping defaultmapping> {
+class Diagnostic<string text, DiagClass DC, Severity defaultmapping> {
+ /// Component is specified by the file with a big let directive.
+ string Component = ?;
string Text = text;
DiagClass Class = DC;
- DiagMapping DefaultMapping = defaultmapping;
+ SFINAEResponse SFINAE = SFINAE_Suppress;
+ bit AccessControl = 0;
+ bit WarningNoWerror = 0;
+ bit ShowInSystemHeader = 0;
+ Severity DefaultSeverity = defaultmapping;
DiagGroup Group;
string CategoryName = "";
}
-class Error<string str> : Diagnostic<str, CLASS_ERROR, MAP_ERROR>;
-class Warning<string str> : Diagnostic<str, CLASS_WARNING, MAP_WARNING>;
-class Extension<string str> : Diagnostic<str, CLASS_EXTENSION, MAP_IGNORE>;
-class ExtWarn<string str> : Diagnostic<str, CLASS_EXTENSION, MAP_WARNING>;
-class Note<string str> : Diagnostic<str, CLASS_NOTE, MAP_FATAL/*ignored*/>;
+class SFINAEFailure {
+ SFINAEResponse SFINAE = SFINAE_SubstitutionFailure;
+}
+class NoSFINAE {
+ SFINAEResponse SFINAE = SFINAE_Report;
+}
+class AccessControl {
+ SFINAEResponse SFINAE = SFINAE_AccessControl;
+}
+
+class ShowInSystemHeader {
+ bit ShowInSystemHeader = 1;
+}
+
+class SuppressInSystemHeader {
+ bit ShowInSystemHeader = 0;
+}
+
+// FIXME: ExtWarn and Extension should also be SFINAEFailure by default.
+class Error<string str> : Diagnostic<str, CLASS_ERROR, SEV_Error>, SFINAEFailure {
+ bit ShowInSystemHeader = 1;
+}
+// Warnings default to on (but can be default-off'd with DefaultIgnore).
+// This is used for warnings about questionable code; warnings about
+// accepted language extensions should use Extension or ExtWarn below instead.
+class Warning<string str> : Diagnostic<str, CLASS_WARNING, SEV_Warning>;
+// Remarks can be turned on with -R flags and provide commentary, e.g. on
+// optimizer decisions.
+class Remark<string str> : Diagnostic<str, CLASS_REMARK, SEV_Ignored>;
+// Extensions are warnings about accepted language extensions.
+// Extension warnings are default-off but enabled by -pedantic.
+class Extension<string str> : Diagnostic<str, CLASS_EXTENSION, SEV_Ignored>;
+// ExtWarns are warnings about accepted language extensions.
+// ExtWarn warnings are default-on.
+class ExtWarn<string str> : Diagnostic<str, CLASS_EXTENSION, SEV_Warning>;
+// Notes can provide supplementary information on errors, warnings, and remarks.
+class Note<string str> : Diagnostic<str, CLASS_NOTE, SEV_Fatal/*ignored*/>;
+
+
+class DefaultIgnore { Severity DefaultSeverity = SEV_Ignored; }
+class DefaultWarn { Severity DefaultSeverity = SEV_Warning; }
+class DefaultError { Severity DefaultSeverity = SEV_Error; }
+class DefaultFatal { Severity DefaultSeverity = SEV_Fatal; }
+class DefaultWarnNoWerror {
+ bit WarningNoWerror = 1;
+}
+class DefaultRemark { Severity DefaultSeverity = SEV_Remark; }
Index: include/clang/Basic/Diagnostic.td
===================================================================
--- include/clang/Basic/Diagnostic.td
+++ include/clang/Basic/Diagnostic.td
@@ -39,6 +39,15 @@
def SFINAE_Report : SFINAEResponse;
def SFINAE_AccessControl : SFINAEResponse;
+// Textual substitutions which may be performed on the text of diagnostics
+class TextSubstitution<string Text> {
+ string Substitution = Text;
+ // TODO: These are only here to allow substitutions to be declared inline with
+ // diagnostics
+ string Component = "";
+ string CategoryName = "";
+}
+
// Diagnostic Categories. These can be applied to groups or individual
// diagnostics to specify a category.
class DiagCategory<string Name> {
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