| //===- ClangAttrEmitter.cpp - Generate Clang attribute handling =-*- C++ -*--=// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // These tablegen backends emit Clang attribute processing code |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/ADT/SmallString.h" |
| #include "llvm/ADT/StringSwitch.h" |
| #include "llvm/TableGen/Record.h" |
| #include "llvm/TableGen/StringMatcher.h" |
| #include "llvm/TableGen/TableGenBackend.h" |
| #include <algorithm> |
| #include <cctype> |
| |
| using namespace llvm; |
| |
| static const std::vector<StringRef> |
| getValueAsListOfStrings(Record &R, StringRef FieldName) { |
| ListInit *List = R.getValueAsListInit(FieldName); |
| assert (List && "Got a null ListInit"); |
| |
| std::vector<StringRef> Strings; |
| Strings.reserve(List->getSize()); |
| |
| for (ListInit::const_iterator i = List->begin(), e = List->end(); |
| i != e; |
| ++i) { |
| assert(*i && "Got a null element in a ListInit"); |
| if (StringInit *S = dyn_cast<StringInit>(*i)) |
| Strings.push_back(S->getValue()); |
| else |
| assert(false && "Got a non-string, non-code element in a ListInit"); |
| } |
| |
| return Strings; |
| } |
| |
| static std::string ReadPCHRecord(StringRef type) { |
| return StringSwitch<std::string>(type) |
| .EndsWith("Decl *", "GetLocalDeclAs<" |
| + std::string(type, 0, type.size()-1) + ">(F, Record[Idx++])") |
| .Case("QualType", "getLocalType(F, Record[Idx++])") |
| .Case("Expr *", "ReadExpr(F)") |
| .Case("IdentifierInfo *", "GetIdentifierInfo(F, Record, Idx)") |
| .Case("SourceLocation", "ReadSourceLocation(F, Record, Idx)") |
| .Default("Record[Idx++]"); |
| } |
| |
| // Assumes that the way to get the value is SA->getname() |
| static std::string WritePCHRecord(StringRef type, StringRef name) { |
| return StringSwitch<std::string>(type) |
| .EndsWith("Decl *", "AddDeclRef(" + std::string(name) + |
| ", Record);\n") |
| .Case("QualType", "AddTypeRef(" + std::string(name) + ", Record);\n") |
| .Case("Expr *", "AddStmt(" + std::string(name) + ");\n") |
| .Case("IdentifierInfo *", |
| "AddIdentifierRef(" + std::string(name) + ", Record);\n") |
| .Case("SourceLocation", |
| "AddSourceLocation(" + std::string(name) + ", Record);\n") |
| .Default("Record.push_back(" + std::string(name) + ");\n"); |
| } |
| |
| // Normalize attribute name by removing leading and trailing |
| // underscores. For example, __foo, foo__, __foo__ would |
| // become foo. |
| static StringRef NormalizeAttrName(StringRef AttrName) { |
| if (AttrName.startswith("__")) |
| AttrName = AttrName.substr(2, AttrName.size()); |
| |
| if (AttrName.endswith("__")) |
| AttrName = AttrName.substr(0, AttrName.size() - 2); |
| |
| return AttrName; |
| } |
| |
| // Normalize attribute spelling only if the spelling has both leading |
| // and trailing underscores. For example, __ms_struct__ will be |
| // normalized to "ms_struct"; __cdecl will remain intact. |
| static StringRef NormalizeAttrSpelling(StringRef AttrSpelling) { |
| if (AttrSpelling.startswith("__") && AttrSpelling.endswith("__")) { |
| AttrSpelling = AttrSpelling.substr(2, AttrSpelling.size() - 4); |
| } |
| |
| return AttrSpelling; |
| } |
| |
| namespace { |
| class Argument { |
| std::string lowerName, upperName; |
| StringRef attrName; |
| |
| public: |
| Argument(Record &Arg, StringRef Attr) |
| : lowerName(Arg.getValueAsString("Name")), upperName(lowerName), |
| attrName(Attr) { |
| if (!lowerName.empty()) { |
| lowerName[0] = std::tolower(lowerName[0]); |
| upperName[0] = std::toupper(upperName[0]); |
| } |
| } |
| virtual ~Argument() {} |
| |
| StringRef getLowerName() const { return lowerName; } |
| StringRef getUpperName() const { return upperName; } |
| StringRef getAttrName() const { return attrName; } |
| |
| // These functions print the argument contents formatted in different ways. |
| virtual void writeAccessors(raw_ostream &OS) const = 0; |
| virtual void writeAccessorDefinitions(raw_ostream &OS) const {} |
| virtual void writeCloneArgs(raw_ostream &OS) const = 0; |
| virtual void writeTemplateInstantiationArgs(raw_ostream &OS) const = 0; |
| virtual void writeTemplateInstantiation(raw_ostream &OS) const {} |
| virtual void writeCtorBody(raw_ostream &OS) const {} |
| virtual void writeCtorInitializers(raw_ostream &OS) const = 0; |
| virtual void writeCtorParameters(raw_ostream &OS) const = 0; |
| virtual void writeDeclarations(raw_ostream &OS) const = 0; |
| virtual void writePCHReadArgs(raw_ostream &OS) const = 0; |
| virtual void writePCHReadDecls(raw_ostream &OS) const = 0; |
| virtual void writePCHWrite(raw_ostream &OS) const = 0; |
| virtual void writeValue(raw_ostream &OS) const = 0; |
| virtual void writeDump(raw_ostream &OS) const = 0; |
| virtual void writeDumpChildren(raw_ostream &OS) const {} |
| virtual void writeHasChildren(raw_ostream &OS) const { OS << "false"; } |
| }; |
| |
| class SimpleArgument : public Argument { |
| std::string type; |
| |
| public: |
| SimpleArgument(Record &Arg, StringRef Attr, std::string T) |
| : Argument(Arg, Attr), type(T) |
| {} |
| |
| std::string getType() const { return type; } |
| |
| void writeAccessors(raw_ostream &OS) const { |
| OS << " " << type << " get" << getUpperName() << "() const {\n"; |
| OS << " return " << getLowerName() << ";\n"; |
| OS << " }"; |
| } |
| void writeCloneArgs(raw_ostream &OS) const { |
| OS << getLowerName(); |
| } |
| void writeTemplateInstantiationArgs(raw_ostream &OS) const { |
| OS << "A->get" << getUpperName() << "()"; |
| } |
| void writeCtorInitializers(raw_ostream &OS) const { |
| OS << getLowerName() << "(" << getUpperName() << ")"; |
| } |
| void writeCtorParameters(raw_ostream &OS) const { |
| OS << type << " " << getUpperName(); |
| } |
| void writeDeclarations(raw_ostream &OS) const { |
| OS << type << " " << getLowerName() << ";"; |
| } |
| void writePCHReadDecls(raw_ostream &OS) const { |
| std::string read = ReadPCHRecord(type); |
| OS << " " << type << " " << getLowerName() << " = " << read << ";\n"; |
| } |
| void writePCHReadArgs(raw_ostream &OS) const { |
| OS << getLowerName(); |
| } |
| void writePCHWrite(raw_ostream &OS) const { |
| OS << " " << WritePCHRecord(type, "SA->get" + |
| std::string(getUpperName()) + "()"); |
| } |
| void writeValue(raw_ostream &OS) const { |
| if (type == "FunctionDecl *") { |
| OS << "\" << get" << getUpperName() << "()->getNameInfo().getAsString() << \""; |
| } else if (type == "IdentifierInfo *") { |
| OS << "\" << get" << getUpperName() << "()->getName() << \""; |
| } else if (type == "QualType") { |
| OS << "\" << get" << getUpperName() << "().getAsString() << \""; |
| } else if (type == "SourceLocation") { |
| OS << "\" << get" << getUpperName() << "().getRawEncoding() << \""; |
| } else { |
| OS << "\" << get" << getUpperName() << "() << \""; |
| } |
| } |
| void writeDump(raw_ostream &OS) const { |
| if (type == "FunctionDecl *") { |
| OS << " OS << \" \";\n"; |
| OS << " dumpBareDeclRef(SA->get" << getUpperName() << "());\n"; |
| } else if (type == "IdentifierInfo *") { |
| OS << " OS << \" \" << SA->get" << getUpperName() |
| << "()->getName();\n"; |
| } else if (type == "QualType") { |
| OS << " OS << \" \" << SA->get" << getUpperName() |
| << "().getAsString();\n"; |
| } else if (type == "SourceLocation") { |
| OS << " OS << \" \";\n"; |
| OS << " SA->get" << getUpperName() << "().print(OS, *SM);\n"; |
| } else if (type == "bool") { |
| OS << " if (SA->get" << getUpperName() << "()) OS << \" " |
| << getUpperName() << "\";\n"; |
| } else if (type == "int" || type == "unsigned") { |
| OS << " OS << \" \" << SA->get" << getUpperName() << "();\n"; |
| } else { |
| llvm_unreachable("Unknown SimpleArgument type!"); |
| } |
| } |
| }; |
| |
| class StringArgument : public Argument { |
| public: |
| StringArgument(Record &Arg, StringRef Attr) |
| : Argument(Arg, Attr) |
| {} |
| |
| void writeAccessors(raw_ostream &OS) const { |
| OS << " llvm::StringRef get" << getUpperName() << "() const {\n"; |
| OS << " return llvm::StringRef(" << getLowerName() << ", " |
| << getLowerName() << "Length);\n"; |
| OS << " }\n"; |
| OS << " unsigned get" << getUpperName() << "Length() const {\n"; |
| OS << " return " << getLowerName() << "Length;\n"; |
| OS << " }\n"; |
| OS << " void set" << getUpperName() |
| << "(ASTContext &C, llvm::StringRef S) {\n"; |
| OS << " " << getLowerName() << "Length = S.size();\n"; |
| OS << " this->" << getLowerName() << " = new (C, 1) char [" |
| << getLowerName() << "Length];\n"; |
| OS << " std::memcpy(this->" << getLowerName() << ", S.data(), " |
| << getLowerName() << "Length);\n"; |
| OS << " }"; |
| } |
| void writeCloneArgs(raw_ostream &OS) const { |
| OS << "get" << getUpperName() << "()"; |
| } |
| void writeTemplateInstantiationArgs(raw_ostream &OS) const { |
| OS << "A->get" << getUpperName() << "()"; |
| } |
| void writeCtorBody(raw_ostream &OS) const { |
| OS << " std::memcpy(" << getLowerName() << ", " << getUpperName() |
| << ".data(), " << getLowerName() << "Length);"; |
| } |
| void writeCtorInitializers(raw_ostream &OS) const { |
| OS << getLowerName() << "Length(" << getUpperName() << ".size())," |
| << getLowerName() << "(new (Ctx, 1) char[" << getLowerName() |
| << "Length])"; |
| } |
| void writeCtorParameters(raw_ostream &OS) const { |
| OS << "llvm::StringRef " << getUpperName(); |
| } |
| void writeDeclarations(raw_ostream &OS) const { |
| OS << "unsigned " << getLowerName() << "Length;\n"; |
| OS << "char *" << getLowerName() << ";"; |
| } |
| void writePCHReadDecls(raw_ostream &OS) const { |
| OS << " std::string " << getLowerName() |
| << "= ReadString(Record, Idx);\n"; |
| } |
| void writePCHReadArgs(raw_ostream &OS) const { |
| OS << getLowerName(); |
| } |
| void writePCHWrite(raw_ostream &OS) const { |
| OS << " AddString(SA->get" << getUpperName() << "(), Record);\n"; |
| } |
| void writeValue(raw_ostream &OS) const { |
| OS << "\\\"\" << get" << getUpperName() << "() << \"\\\""; |
| } |
| void writeDump(raw_ostream &OS) const { |
| OS << " OS << \" \\\"\" << SA->get" << getUpperName() |
| << "() << \"\\\"\";\n"; |
| } |
| }; |
| |
| class AlignedArgument : public Argument { |
| public: |
| AlignedArgument(Record &Arg, StringRef Attr) |
| : Argument(Arg, Attr) |
| {} |
| |
| void writeAccessors(raw_ostream &OS) const { |
| OS << " bool is" << getUpperName() << "Dependent() const;\n"; |
| |
| OS << " unsigned get" << getUpperName() << "(ASTContext &Ctx) const;\n"; |
| |
| OS << " bool is" << getUpperName() << "Expr() const {\n"; |
| OS << " return is" << getLowerName() << "Expr;\n"; |
| OS << " }\n"; |
| |
| OS << " Expr *get" << getUpperName() << "Expr() const {\n"; |
| OS << " assert(is" << getLowerName() << "Expr);\n"; |
| OS << " return " << getLowerName() << "Expr;\n"; |
| OS << " }\n"; |
| |
| OS << " TypeSourceInfo *get" << getUpperName() << "Type() const {\n"; |
| OS << " assert(!is" << getLowerName() << "Expr);\n"; |
| OS << " return " << getLowerName() << "Type;\n"; |
| OS << " }"; |
| } |
| void writeAccessorDefinitions(raw_ostream &OS) const { |
| OS << "bool " << getAttrName() << "Attr::is" << getUpperName() |
| << "Dependent() const {\n"; |
| OS << " if (is" << getLowerName() << "Expr)\n"; |
| OS << " return " << getLowerName() << "Expr && (" << getLowerName() |
| << "Expr->isValueDependent() || " << getLowerName() |
| << "Expr->isTypeDependent());\n"; |
| OS << " else\n"; |
| OS << " return " << getLowerName() |
| << "Type->getType()->isDependentType();\n"; |
| OS << "}\n"; |
| |
| // FIXME: Do not do the calculation here |
| // FIXME: Handle types correctly |
| // A null pointer means maximum alignment |
| // FIXME: Load the platform-specific maximum alignment, rather than |
| // 16, the x86 max. |
| OS << "unsigned " << getAttrName() << "Attr::get" << getUpperName() |
| << "(ASTContext &Ctx) const {\n"; |
| OS << " assert(!is" << getUpperName() << "Dependent());\n"; |
| OS << " if (is" << getLowerName() << "Expr)\n"; |
| OS << " return (" << getLowerName() << "Expr ? " << getLowerName() |
| << "Expr->EvaluateKnownConstInt(Ctx).getZExtValue() : 16)" |
| << "* Ctx.getCharWidth();\n"; |
| OS << " else\n"; |
| OS << " return 0; // FIXME\n"; |
| OS << "}\n"; |
| } |
| void writeCloneArgs(raw_ostream &OS) const { |
| OS << "is" << getLowerName() << "Expr, is" << getLowerName() |
| << "Expr ? static_cast<void*>(" << getLowerName() |
| << "Expr) : " << getLowerName() |
| << "Type"; |
| } |
| void writeTemplateInstantiationArgs(raw_ostream &OS) const { |
| // FIXME: move the definition in Sema::InstantiateAttrs to here. |
| // In the meantime, aligned attributes are cloned. |
| } |
| void writeCtorBody(raw_ostream &OS) const { |
| OS << " if (is" << getLowerName() << "Expr)\n"; |
| OS << " " << getLowerName() << "Expr = reinterpret_cast<Expr *>(" |
| << getUpperName() << ");\n"; |
| OS << " else\n"; |
| OS << " " << getLowerName() |
| << "Type = reinterpret_cast<TypeSourceInfo *>(" << getUpperName() |
| << ");"; |
| } |
| void writeCtorInitializers(raw_ostream &OS) const { |
| OS << "is" << getLowerName() << "Expr(Is" << getUpperName() << "Expr)"; |
| } |
| void writeCtorParameters(raw_ostream &OS) const { |
| OS << "bool Is" << getUpperName() << "Expr, void *" << getUpperName(); |
| } |
| void writeDeclarations(raw_ostream &OS) const { |
| OS << "bool is" << getLowerName() << "Expr;\n"; |
| OS << "union {\n"; |
| OS << "Expr *" << getLowerName() << "Expr;\n"; |
| OS << "TypeSourceInfo *" << getLowerName() << "Type;\n"; |
| OS << "};"; |
| } |
| void writePCHReadArgs(raw_ostream &OS) const { |
| OS << "is" << getLowerName() << "Expr, " << getLowerName() << "Ptr"; |
| } |
| void writePCHReadDecls(raw_ostream &OS) const { |
| OS << " bool is" << getLowerName() << "Expr = Record[Idx++];\n"; |
| OS << " void *" << getLowerName() << "Ptr;\n"; |
| OS << " if (is" << getLowerName() << "Expr)\n"; |
| OS << " " << getLowerName() << "Ptr = ReadExpr(F);\n"; |
| OS << " else\n"; |
| OS << " " << getLowerName() |
| << "Ptr = GetTypeSourceInfo(F, Record, Idx);\n"; |
| } |
| void writePCHWrite(raw_ostream &OS) const { |
| OS << " Record.push_back(SA->is" << getUpperName() << "Expr());\n"; |
| OS << " if (SA->is" << getUpperName() << "Expr())\n"; |
| OS << " AddStmt(SA->get" << getUpperName() << "Expr());\n"; |
| OS << " else\n"; |
| OS << " AddTypeSourceInfo(SA->get" << getUpperName() |
| << "Type(), Record);\n"; |
| } |
| void writeValue(raw_ostream &OS) const { |
| OS << "\";\n" |
| << " " << getLowerName() << "Expr->printPretty(OS, 0, Policy);\n" |
| << " OS << \""; |
| } |
| void writeDump(raw_ostream &OS) const { |
| } |
| void writeDumpChildren(raw_ostream &OS) const { |
| OS << " if (SA->is" << getUpperName() << "Expr()) {\n"; |
| OS << " lastChild();\n"; |
| OS << " dumpStmt(SA->get" << getUpperName() << "Expr());\n"; |
| OS << " } else\n"; |
| OS << " dumpType(SA->get" << getUpperName() |
| << "Type()->getType());\n"; |
| } |
| void writeHasChildren(raw_ostream &OS) const { |
| OS << "SA->is" << getUpperName() << "Expr()"; |
| } |
| }; |
| |
| class VariadicArgument : public Argument { |
| std::string type; |
| |
| public: |
| VariadicArgument(Record &Arg, StringRef Attr, std::string T) |
| : Argument(Arg, Attr), type(T) |
| {} |
| |
| std::string getType() const { return type; } |
| |
| void writeAccessors(raw_ostream &OS) const { |
| OS << " typedef " << type << "* " << getLowerName() << "_iterator;\n"; |
| OS << " " << getLowerName() << "_iterator " << getLowerName() |
| << "_begin() const {\n"; |
| OS << " return " << getLowerName() << ";\n"; |
| OS << " }\n"; |
| OS << " " << getLowerName() << "_iterator " << getLowerName() |
| << "_end() const {\n"; |
| OS << " return " << getLowerName() << " + " << getLowerName() |
| << "Size;\n"; |
| OS << " }\n"; |
| OS << " unsigned " << getLowerName() << "_size() const {\n" |
| << " return " << getLowerName() << "Size;\n"; |
| OS << " }"; |
| } |
| void writeCloneArgs(raw_ostream &OS) const { |
| OS << getLowerName() << ", " << getLowerName() << "Size"; |
| } |
| void writeTemplateInstantiationArgs(raw_ostream &OS) const { |
| // This isn't elegant, but we have to go through public methods... |
| OS << "A->" << getLowerName() << "_begin(), " |
| << "A->" << getLowerName() << "_size()"; |
| } |
| void writeCtorBody(raw_ostream &OS) const { |
| // FIXME: memcpy is not safe on non-trivial types. |
| OS << " std::memcpy(" << getLowerName() << ", " << getUpperName() |
| << ", " << getLowerName() << "Size * sizeof(" << getType() << "));\n"; |
| } |
| void writeCtorInitializers(raw_ostream &OS) const { |
| OS << getLowerName() << "Size(" << getUpperName() << "Size), " |
| << getLowerName() << "(new (Ctx, 16) " << getType() << "[" |
| << getLowerName() << "Size])"; |
| } |
| void writeCtorParameters(raw_ostream &OS) const { |
| OS << getType() << " *" << getUpperName() << ", unsigned " |
| << getUpperName() << "Size"; |
| } |
| void writeDeclarations(raw_ostream &OS) const { |
| OS << " unsigned " << getLowerName() << "Size;\n"; |
| OS << " " << getType() << " *" << getLowerName() << ";"; |
| } |
| void writePCHReadDecls(raw_ostream &OS) const { |
| OS << " unsigned " << getLowerName() << "Size = Record[Idx++];\n"; |
| OS << " SmallVector<" << type << ", 4> " << getLowerName() |
| << ";\n"; |
| OS << " " << getLowerName() << ".reserve(" << getLowerName() |
| << "Size);\n"; |
| OS << " for (unsigned i = " << getLowerName() << "Size; i; --i)\n"; |
| |
| std::string read = ReadPCHRecord(type); |
| OS << " " << getLowerName() << ".push_back(" << read << ");\n"; |
| } |
| void writePCHReadArgs(raw_ostream &OS) const { |
| OS << getLowerName() << ".data(), " << getLowerName() << "Size"; |
| } |
| void writePCHWrite(raw_ostream &OS) const{ |
| OS << " Record.push_back(SA->" << getLowerName() << "_size());\n"; |
| OS << " for (" << getAttrName() << "Attr::" << getLowerName() |
| << "_iterator i = SA->" << getLowerName() << "_begin(), e = SA->" |
| << getLowerName() << "_end(); i != e; ++i)\n"; |
| OS << " " << WritePCHRecord(type, "(*i)"); |
| } |
| void writeValue(raw_ostream &OS) const { |
| OS << "\";\n"; |
| OS << " bool isFirst = true;\n" |
| << " for (" << getAttrName() << "Attr::" << getLowerName() |
| << "_iterator i = " << getLowerName() << "_begin(), e = " |
| << getLowerName() << "_end(); i != e; ++i) {\n" |
| << " if (isFirst) isFirst = false;\n" |
| << " else OS << \", \";\n" |
| << " OS << *i;\n" |
| << " }\n"; |
| OS << " OS << \""; |
| } |
| void writeDump(raw_ostream &OS) const { |
| OS << " for (" << getAttrName() << "Attr::" << getLowerName() |
| << "_iterator I = SA->" << getLowerName() << "_begin(), E = SA->" |
| << getLowerName() << "_end(); I != E; ++I)\n"; |
| OS << " OS << \" \" << *I;\n"; |
| } |
| }; |
| |
| class EnumArgument : public Argument { |
| std::string type; |
| std::vector<StringRef> values, enums, uniques; |
| public: |
| EnumArgument(Record &Arg, StringRef Attr) |
| : Argument(Arg, Attr), type(Arg.getValueAsString("Type")), |
| values(getValueAsListOfStrings(Arg, "Values")), |
| enums(getValueAsListOfStrings(Arg, "Enums")), |
| uniques(enums) |
| { |
| // Calculate the various enum values |
| std::sort(uniques.begin(), uniques.end()); |
| uniques.erase(std::unique(uniques.begin(), uniques.end()), uniques.end()); |
| // FIXME: Emit a proper error |
| assert(!uniques.empty()); |
| } |
| |
| void writeAccessors(raw_ostream &OS) const { |
| OS << " " << type << " get" << getUpperName() << "() const {\n"; |
| OS << " return " << getLowerName() << ";\n"; |
| OS << " }"; |
| } |
| void writeCloneArgs(raw_ostream &OS) const { |
| OS << getLowerName(); |
| } |
| void writeTemplateInstantiationArgs(raw_ostream &OS) const { |
| OS << "A->get" << getUpperName() << "()"; |
| } |
| void writeCtorInitializers(raw_ostream &OS) const { |
| OS << getLowerName() << "(" << getUpperName() << ")"; |
| } |
| void writeCtorParameters(raw_ostream &OS) const { |
| OS << type << " " << getUpperName(); |
| } |
| void writeDeclarations(raw_ostream &OS) const { |
| std::vector<StringRef>::const_iterator i = uniques.begin(), |
| e = uniques.end(); |
| // The last one needs to not have a comma. |
| --e; |
| |
| OS << "public:\n"; |
| OS << " enum " << type << " {\n"; |
| for (; i != e; ++i) |
| OS << " " << *i << ",\n"; |
| OS << " " << *e << "\n"; |
| OS << " };\n"; |
| OS << "private:\n"; |
| OS << " " << type << " " << getLowerName() << ";"; |
| } |
| void writePCHReadDecls(raw_ostream &OS) const { |
| OS << " " << getAttrName() << "Attr::" << type << " " << getLowerName() |
| << "(static_cast<" << getAttrName() << "Attr::" << type |
| << ">(Record[Idx++]));\n"; |
| } |
| void writePCHReadArgs(raw_ostream &OS) const { |
| OS << getLowerName(); |
| } |
| void writePCHWrite(raw_ostream &OS) const { |
| OS << "Record.push_back(SA->get" << getUpperName() << "());\n"; |
| } |
| void writeValue(raw_ostream &OS) const { |
| OS << "\" << get" << getUpperName() << "() << \""; |
| } |
| void writeDump(raw_ostream &OS) const { |
| OS << " switch(SA->get" << getUpperName() << "()) {\n"; |
| for (std::vector<StringRef>::const_iterator I = uniques.begin(), |
| E = uniques.end(); I != E; ++I) { |
| OS << " case " << getAttrName() << "Attr::" << *I << ":\n"; |
| OS << " OS << \" " << *I << "\";\n"; |
| OS << " break;\n"; |
| } |
| OS << " }\n"; |
| } |
| }; |
| |
| class VersionArgument : public Argument { |
| public: |
| VersionArgument(Record &Arg, StringRef Attr) |
| : Argument(Arg, Attr) |
| {} |
| |
| void writeAccessors(raw_ostream &OS) const { |
| OS << " VersionTuple get" << getUpperName() << "() const {\n"; |
| OS << " return " << getLowerName() << ";\n"; |
| OS << " }\n"; |
| OS << " void set" << getUpperName() |
| << "(ASTContext &C, VersionTuple V) {\n"; |
| OS << " " << getLowerName() << " = V;\n"; |
| OS << " }"; |
| } |
| void writeCloneArgs(raw_ostream &OS) const { |
| OS << "get" << getUpperName() << "()"; |
| } |
| void writeTemplateInstantiationArgs(raw_ostream &OS) const { |
| OS << "A->get" << getUpperName() << "()"; |
| } |
| void writeCtorBody(raw_ostream &OS) const { |
| } |
| void writeCtorInitializers(raw_ostream &OS) const { |
| OS << getLowerName() << "(" << getUpperName() << ")"; |
| } |
| void writeCtorParameters(raw_ostream &OS) const { |
| OS << "VersionTuple " << getUpperName(); |
| } |
| void writeDeclarations(raw_ostream &OS) const { |
| OS << "VersionTuple " << getLowerName() << ";\n"; |
| } |
| void writePCHReadDecls(raw_ostream &OS) const { |
| OS << " VersionTuple " << getLowerName() |
| << "= ReadVersionTuple(Record, Idx);\n"; |
| } |
| void writePCHReadArgs(raw_ostream &OS) const { |
| OS << getLowerName(); |
| } |
| void writePCHWrite(raw_ostream &OS) const { |
| OS << " AddVersionTuple(SA->get" << getUpperName() << "(), Record);\n"; |
| } |
| void writeValue(raw_ostream &OS) const { |
| OS << getLowerName() << "=\" << get" << getUpperName() << "() << \""; |
| } |
| void writeDump(raw_ostream &OS) const { |
| OS << " OS << \" \" << SA->get" << getUpperName() << "();\n"; |
| } |
| }; |
| |
| class ExprArgument : public SimpleArgument { |
| public: |
| ExprArgument(Record &Arg, StringRef Attr) |
| : SimpleArgument(Arg, Attr, "Expr *") |
| {} |
| |
| void writeTemplateInstantiationArgs(raw_ostream &OS) const { |
| OS << "tempInst" << getUpperName(); |
| } |
| |
| void writeTemplateInstantiation(raw_ostream &OS) const { |
| OS << " " << getType() << " tempInst" << getUpperName() << ";\n"; |
| OS << " {\n"; |
| OS << " EnterExpressionEvaluationContext " |
| << "Unevaluated(S, Sema::Unevaluated);\n"; |
| OS << " ExprResult " << "Result = S.SubstExpr(" |
| << "A->get" << getUpperName() << "(), TemplateArgs);\n"; |
| OS << " tempInst" << getUpperName() << " = " |
| << "Result.takeAs<Expr>();\n"; |
| OS << " }\n"; |
| } |
| |
| void writeDump(raw_ostream &OS) const { |
| } |
| |
| void writeDumpChildren(raw_ostream &OS) const { |
| OS << " lastChild();\n"; |
| OS << " dumpStmt(SA->get" << getUpperName() << "());\n"; |
| } |
| void writeHasChildren(raw_ostream &OS) const { OS << "true"; } |
| }; |
| |
| class VariadicExprArgument : public VariadicArgument { |
| public: |
| VariadicExprArgument(Record &Arg, StringRef Attr) |
| : VariadicArgument(Arg, Attr, "Expr *") |
| {} |
| |
| void writeTemplateInstantiationArgs(raw_ostream &OS) const { |
| OS << "tempInst" << getUpperName() << ", " |
| << "A->" << getLowerName() << "_size()"; |
| } |
| |
| void writeTemplateInstantiation(raw_ostream &OS) const { |
| OS << " " << getType() << " *tempInst" << getUpperName() |
| << " = new (C, 16) " << getType() |
| << "[A->" << getLowerName() << "_size()];\n"; |
| OS << " {\n"; |
| OS << " EnterExpressionEvaluationContext " |
| << "Unevaluated(S, Sema::Unevaluated);\n"; |
| OS << " " << getType() << " *TI = tempInst" << getUpperName() |
| << ";\n"; |
| OS << " " << getType() << " *I = A->" << getLowerName() |
| << "_begin();\n"; |
| OS << " " << getType() << " *E = A->" << getLowerName() |
| << "_end();\n"; |
| OS << " for (; I != E; ++I, ++TI) {\n"; |
| OS << " ExprResult Result = S.SubstExpr(*I, TemplateArgs);\n"; |
| OS << " *TI = Result.takeAs<Expr>();\n"; |
| OS << " }\n"; |
| OS << " }\n"; |
| } |
| |
| void writeDump(raw_ostream &OS) const { |
| } |
| |
| void writeDumpChildren(raw_ostream &OS) const { |
| OS << " for (" << getAttrName() << "Attr::" << getLowerName() |
| << "_iterator I = SA->" << getLowerName() << "_begin(), E = SA->" |
| << getLowerName() << "_end(); I != E; ++I) {\n"; |
| OS << " if (I + 1 == E)\n"; |
| OS << " lastChild();\n"; |
| OS << " dumpStmt(*I);\n"; |
| OS << " }\n"; |
| } |
| |
| void writeHasChildren(raw_ostream &OS) const { |
| OS << "SA->" << getLowerName() << "_begin() != " |
| << "SA->" << getLowerName() << "_end()"; |
| } |
| }; |
| } |
| |
| static Argument *createArgument(Record &Arg, StringRef Attr, |
| Record *Search = 0) { |
| if (!Search) |
| Search = &Arg; |
| |
| Argument *Ptr = 0; |
| llvm::StringRef ArgName = Search->getName(); |
| |
| if (ArgName == "AlignedArgument") Ptr = new AlignedArgument(Arg, Attr); |
| else if (ArgName == "EnumArgument") Ptr = new EnumArgument(Arg, Attr); |
| else if (ArgName == "ExprArgument") Ptr = new ExprArgument(Arg, Attr); |
| else if (ArgName == "FunctionArgument") |
| Ptr = new SimpleArgument(Arg, Attr, "FunctionDecl *"); |
| else if (ArgName == "IdentifierArgument") |
| Ptr = new SimpleArgument(Arg, Attr, "IdentifierInfo *"); |
| else if (ArgName == "BoolArgument") Ptr = new SimpleArgument(Arg, Attr, |
| "bool"); |
| else if (ArgName == "IntArgument") Ptr = new SimpleArgument(Arg, Attr, "int"); |
| else if (ArgName == "StringArgument") Ptr = new StringArgument(Arg, Attr); |
| else if (ArgName == "TypeArgument") |
| Ptr = new SimpleArgument(Arg, Attr, "QualType"); |
| else if (ArgName == "UnsignedArgument") |
| Ptr = new SimpleArgument(Arg, Attr, "unsigned"); |
| else if (ArgName == "SourceLocArgument") |
| Ptr = new SimpleArgument(Arg, Attr, "SourceLocation"); |
| else if (ArgName == "VariadicUnsignedArgument") |
| Ptr = new VariadicArgument(Arg, Attr, "unsigned"); |
| else if (ArgName == "VariadicExprArgument") |
| Ptr = new VariadicExprArgument(Arg, Attr); |
| else if (ArgName == "VersionArgument") |
| Ptr = new VersionArgument(Arg, Attr); |
| |
| if (!Ptr) { |
| std::vector<Record*> Bases = Search->getSuperClasses(); |
| for (std::vector<Record*>::iterator i = Bases.begin(), e = Bases.end(); |
| i != e; ++i) { |
| Ptr = createArgument(Arg, Attr, *i); |
| if (Ptr) |
| break; |
| } |
| } |
| return Ptr; |
| } |
| |
| static void writeAvailabilityValue(raw_ostream &OS) { |
| OS << "\" << getPlatform()->getName();\n" |
| << " if (!getIntroduced().empty()) OS << \", introduced=\" << getIntroduced();\n" |
| << " if (!getDeprecated().empty()) OS << \", deprecated=\" << getDeprecated();\n" |
| << " if (!getObsoleted().empty()) OS << \", obsoleted=\" << getObsoleted();\n" |
| << " if (getUnavailable()) OS << \", unavailable\";\n" |
| << " OS << \""; |
| } |
| |
| static void writePrettyPrintFunction(Record &R, std::vector<Argument*> &Args, |
| raw_ostream &OS) { |
| std::vector<Record*> Spellings = R.getValueAsListOfDefs("Spellings"); |
| |
| OS << "void " << R.getName() << "Attr::printPretty(" |
| << "raw_ostream &OS, const PrintingPolicy &Policy) const {\n"; |
| |
| if (Spellings.size() == 0) { |
| OS << "}\n\n"; |
| return; |
| } |
| |
| OS << |
| " switch (SpellingListIndex) {\n" |
| " default:\n" |
| " llvm_unreachable(\"Unknown attribute spelling!\");\n" |
| " break;\n"; |
| |
| for (unsigned I = 0; I < Spellings.size(); ++ I) { |
| llvm::SmallString<16> Prefix; |
| llvm::SmallString<8> Suffix; |
| // The actual spelling of the name and namespace (if applicable) |
| // of an attribute without considering prefix and suffix. |
| llvm::SmallString<64> Spelling; |
| std::string Name = Spellings[I]->getValueAsString("Name"); |
| std::string Variety = Spellings[I]->getValueAsString("Variety"); |
| |
| if (Variety == "GNU") { |
| Prefix = " __attribute__(("; |
| Suffix = "))"; |
| } else if (Variety == "CXX11") { |
| Prefix = " [["; |
| Suffix = "]]"; |
| std::string Namespace = Spellings[I]->getValueAsString("Namespace"); |
| if (Namespace != "") { |
| Spelling += Namespace; |
| Spelling += "::"; |
| } |
| } else if (Variety == "Declspec") { |
| Prefix = " __declspec("; |
| Suffix = ")"; |
| } else if (Variety == "Keyword") { |
| Prefix = " "; |
| Suffix = ""; |
| } else { |
| llvm_unreachable("Unknown attribute syntax variety!"); |
| } |
| |
| Spelling += Name; |
| |
| OS << |
| " case " << I << " : {\n" |
| " OS << \"" + Prefix.str() + Spelling.str(); |
| |
| if (Args.size()) OS << "("; |
| if (Spelling == "availability") { |
| writeAvailabilityValue(OS); |
| } else { |
| for (std::vector<Argument*>::const_iterator I = Args.begin(), |
| E = Args.end(); I != E; ++ I) { |
| if (I != Args.begin()) OS << ", "; |
| (*I)->writeValue(OS); |
| } |
| } |
| |
| if (Args.size()) OS << ")"; |
| OS << Suffix.str() + "\";\n"; |
| |
| OS << |
| " break;\n" |
| " }\n"; |
| } |
| |
| // End of the switch statement. |
| OS << "}\n"; |
| // End of the print function. |
| OS << "}\n\n"; |
| } |
| |
| /// \brief Return the index of a spelling in a spelling list. |
| static unsigned getSpellingListIndex(const std::vector<Record*> &SpellingList, |
| const Record &Spelling) { |
| assert(SpellingList.size() && "Spelling list is empty!"); |
| |
| for (unsigned Index = 0; Index < SpellingList.size(); ++Index) { |
| Record *S = SpellingList[Index]; |
| if (S->getValueAsString("Variety") != Spelling.getValueAsString("Variety")) |
| continue; |
| if (S->getValueAsString("Variety") == "CXX11" && |
| S->getValueAsString("Namespace") != |
| Spelling.getValueAsString("Namespace")) |
| continue; |
| if (S->getValueAsString("Name") != Spelling.getValueAsString("Name")) |
| continue; |
| |
| return Index; |
| } |
| |
| llvm_unreachable("Unknown spelling!"); |
| } |
| |
| static void writeAttrAccessorDefinition(Record &R, raw_ostream &OS) { |
| std::vector<Record*> Accessors = R.getValueAsListOfDefs("Accessors"); |
| for (std::vector<Record*>::const_iterator I = Accessors.begin(), |
| E = Accessors.end(); I != E; ++I) { |
| Record *Accessor = *I; |
| std::string Name = Accessor->getValueAsString("Name"); |
| std::vector<Record*> Spellings = Accessor->getValueAsListOfDefs( |
| "Spellings"); |
| std::vector<Record*> SpellingList = R.getValueAsListOfDefs("Spellings"); |
| assert(SpellingList.size() && |
| "Attribute with empty spelling list can't have accessors!"); |
| |
| OS << " bool " << Name << "() const { return SpellingListIndex == "; |
| for (unsigned Index = 0; Index < Spellings.size(); ++Index) { |
| OS << getSpellingListIndex(SpellingList, *Spellings[Index]); |
| if (Index != Spellings.size() -1) |
| OS << " ||\n SpellingListIndex == "; |
| else |
| OS << "; }\n"; |
| } |
| } |
| } |
| |
| namespace clang { |
| |
| // Emits the class definitions for attributes. |
| void EmitClangAttrClass(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("Attribute classes' definitions", OS); |
| |
| OS << "#ifndef LLVM_CLANG_ATTR_CLASSES_INC\n"; |
| OS << "#define LLVM_CLANG_ATTR_CLASSES_INC\n\n"; |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| |
| for (std::vector<Record*>::iterator i = Attrs.begin(), e = Attrs.end(); |
| i != e; ++i) { |
| Record &R = **i; |
| |
| if (!R.getValueAsBit("ASTNode")) |
| continue; |
| |
| const std::string &SuperName = R.getSuperClasses().back()->getName(); |
| |
| OS << "class " << R.getName() << "Attr : public " << SuperName << " {\n"; |
| |
| std::vector<Record*> ArgRecords = R.getValueAsListOfDefs("Args"); |
| std::vector<Argument*> Args; |
| std::vector<Argument*>::iterator ai, ae; |
| Args.reserve(ArgRecords.size()); |
| |
| for (std::vector<Record*>::iterator ri = ArgRecords.begin(), |
| re = ArgRecords.end(); |
| ri != re; ++ri) { |
| Record &ArgRecord = **ri; |
| Argument *Arg = createArgument(ArgRecord, R.getName()); |
| assert(Arg); |
| Args.push_back(Arg); |
| |
| Arg->writeDeclarations(OS); |
| OS << "\n\n"; |
| } |
| |
| ae = Args.end(); |
| |
| OS << "\n public:\n"; |
| OS << " " << R.getName() << "Attr(SourceRange R, ASTContext &Ctx\n"; |
| |
| for (ai = Args.begin(); ai != ae; ++ai) { |
| OS << " , "; |
| (*ai)->writeCtorParameters(OS); |
| OS << "\n"; |
| } |
| |
| OS << " , "; |
| OS << "unsigned SI = 0\n"; |
| |
| OS << " )\n"; |
| OS << " : " << SuperName << "(attr::" << R.getName() << ", R, SI)\n"; |
| |
| for (ai = Args.begin(); ai != ae; ++ai) { |
| OS << " , "; |
| (*ai)->writeCtorInitializers(OS); |
| OS << "\n"; |
| } |
| |
| OS << " {\n"; |
| |
| for (ai = Args.begin(); ai != ae; ++ai) { |
| (*ai)->writeCtorBody(OS); |
| OS << "\n"; |
| } |
| OS << " }\n\n"; |
| |
| OS << " virtual " << R.getName() << "Attr *clone (ASTContext &C) const;\n"; |
| OS << " virtual void printPretty(raw_ostream &OS,\n" |
| << " const PrintingPolicy &Policy) const;\n"; |
| |
| writeAttrAccessorDefinition(R, OS); |
| |
| for (ai = Args.begin(); ai != ae; ++ai) { |
| (*ai)->writeAccessors(OS); |
| OS << "\n\n"; |
| } |
| |
| OS << R.getValueAsString("AdditionalMembers"); |
| OS << "\n\n"; |
| |
| OS << " static bool classof(const Attr *A) { return A->getKind() == " |
| << "attr::" << R.getName() << "; }\n"; |
| |
| bool LateParsed = R.getValueAsBit("LateParsed"); |
| OS << " virtual bool isLateParsed() const { return " |
| << LateParsed << "; }\n"; |
| |
| OS << "};\n\n"; |
| } |
| |
| OS << "#endif\n"; |
| } |
| |
| // Emits the all-arguments-are-expressions property for attributes. |
| void EmitClangAttrExprArgsList(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("llvm::StringSwitch code to match attributes with " |
| "expression arguments", OS); |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| |
| for (std::vector<Record*>::iterator I = Attrs.begin(), E = Attrs.end(); |
| I != E; ++I) { |
| Record &Attr = **I; |
| |
| // Determine whether the first argument is something that is always |
| // an expression. |
| std::vector<Record *> Args = Attr.getValueAsListOfDefs("Args"); |
| if (Args.empty() || Args[0]->getSuperClasses().empty()) |
| continue; |
| |
| // Check whether this is one of the argument kinds that implies an |
| // expression. |
| // FIXME: Aligned is weird. |
| if (!llvm::StringSwitch<bool>(Args[0]->getSuperClasses().back()->getName()) |
| .Case("AlignedArgument", true) |
| .Case("BoolArgument", true) |
| .Case("DefaultIntArgument", true) |
| .Case("IntArgument", true) |
| .Case("ExprArgument", true) |
| .Case("UnsignedArgument", true) |
| .Case("VariadicUnsignedArgument", true) |
| .Case("VariadicExprArgument", true) |
| .Default(false)) |
| continue; |
| |
| std::vector<Record*> Spellings = Attr.getValueAsListOfDefs("Spellings"); |
| |
| for (std::vector<Record*>::const_iterator I = Spellings.begin(), |
| E = Spellings.end(); I != E; ++I) { |
| OS << ".Case(\"" << (*I)->getValueAsString("Name") << "\", " |
| << "true" << ")\n"; |
| } |
| } |
| } |
| |
| // Emits the class method definitions for attributes. |
| void EmitClangAttrImpl(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("Attribute classes' member function definitions", OS); |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| std::vector<Record*>::iterator i = Attrs.begin(), e = Attrs.end(), ri, re; |
| std::vector<Argument*>::iterator ai, ae; |
| |
| for (; i != e; ++i) { |
| Record &R = **i; |
| |
| if (!R.getValueAsBit("ASTNode")) |
| continue; |
| |
| std::vector<Record*> ArgRecords = R.getValueAsListOfDefs("Args"); |
| std::vector<Argument*> Args; |
| for (ri = ArgRecords.begin(), re = ArgRecords.end(); ri != re; ++ri) |
| Args.push_back(createArgument(**ri, R.getName())); |
| |
| for (ai = Args.begin(), ae = Args.end(); ai != ae; ++ai) |
| (*ai)->writeAccessorDefinitions(OS); |
| |
| OS << R.getName() << "Attr *" << R.getName() |
| << "Attr::clone(ASTContext &C) const {\n"; |
| OS << " return new (C) " << R.getName() << "Attr(getLocation(), C"; |
| for (ai = Args.begin(); ai != ae; ++ai) { |
| OS << ", "; |
| (*ai)->writeCloneArgs(OS); |
| } |
| OS << ", getSpellingListIndex());\n}\n\n"; |
| |
| writePrettyPrintFunction(R, Args, OS); |
| } |
| } |
| |
| } // end namespace clang |
| |
| static void EmitAttrList(raw_ostream &OS, StringRef Class, |
| const std::vector<Record*> &AttrList) { |
| std::vector<Record*>::const_iterator i = AttrList.begin(), e = AttrList.end(); |
| |
| if (i != e) { |
| // Move the end iterator back to emit the last attribute. |
| for(--e; i != e; ++i) { |
| if (!(*i)->getValueAsBit("ASTNode")) |
| continue; |
| |
| OS << Class << "(" << (*i)->getName() << ")\n"; |
| } |
| |
| OS << "LAST_" << Class << "(" << (*i)->getName() << ")\n\n"; |
| } |
| } |
| |
| namespace clang { |
| |
| // Emits the enumeration list for attributes. |
| void EmitClangAttrList(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("List of all attributes that Clang recognizes", OS); |
| |
| OS << "#ifndef LAST_ATTR\n"; |
| OS << "#define LAST_ATTR(NAME) ATTR(NAME)\n"; |
| OS << "#endif\n\n"; |
| |
| OS << "#ifndef INHERITABLE_ATTR\n"; |
| OS << "#define INHERITABLE_ATTR(NAME) ATTR(NAME)\n"; |
| OS << "#endif\n\n"; |
| |
| OS << "#ifndef LAST_INHERITABLE_ATTR\n"; |
| OS << "#define LAST_INHERITABLE_ATTR(NAME) INHERITABLE_ATTR(NAME)\n"; |
| OS << "#endif\n\n"; |
| |
| OS << "#ifndef INHERITABLE_PARAM_ATTR\n"; |
| OS << "#define INHERITABLE_PARAM_ATTR(NAME) ATTR(NAME)\n"; |
| OS << "#endif\n\n"; |
| |
| OS << "#ifndef LAST_INHERITABLE_PARAM_ATTR\n"; |
| OS << "#define LAST_INHERITABLE_PARAM_ATTR(NAME)" |
| " INHERITABLE_PARAM_ATTR(NAME)\n"; |
| OS << "#endif\n\n"; |
| |
| OS << "#ifndef MS_INHERITABLE_ATTR\n"; |
| OS << "#define MS_INHERITABLE_ATTR(NAME) INHERITABLE_ATTR(NAME)\n"; |
| OS << "#endif\n\n"; |
| |
| OS << "#ifndef LAST_MS_INHERITABLE_ATTR\n"; |
| OS << "#define LAST_MS_INHERITABLE_ATTR(NAME)" |
| " MS_INHERITABLE_ATTR(NAME)\n"; |
| OS << "#endif\n\n"; |
| |
| Record *InhClass = Records.getClass("InheritableAttr"); |
| Record *InhParamClass = Records.getClass("InheritableParamAttr"); |
| Record *MSInheritanceClass = Records.getClass("MSInheritanceAttr"); |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"), |
| NonInhAttrs, InhAttrs, InhParamAttrs, MSInhAttrs; |
| for (std::vector<Record*>::iterator i = Attrs.begin(), e = Attrs.end(); |
| i != e; ++i) { |
| if (!(*i)->getValueAsBit("ASTNode")) |
| continue; |
| |
| if ((*i)->isSubClassOf(InhParamClass)) |
| InhParamAttrs.push_back(*i); |
| else if ((*i)->isSubClassOf(MSInheritanceClass)) |
| MSInhAttrs.push_back(*i); |
| else if ((*i)->isSubClassOf(InhClass)) |
| InhAttrs.push_back(*i); |
| else |
| NonInhAttrs.push_back(*i); |
| } |
| |
| EmitAttrList(OS, "INHERITABLE_PARAM_ATTR", InhParamAttrs); |
| EmitAttrList(OS, "MS_INHERITABLE_ATTR", MSInhAttrs); |
| EmitAttrList(OS, "INHERITABLE_ATTR", InhAttrs); |
| EmitAttrList(OS, "ATTR", NonInhAttrs); |
| |
| OS << "#undef LAST_ATTR\n"; |
| OS << "#undef INHERITABLE_ATTR\n"; |
| OS << "#undef MS_INHERITABLE_ATTR\n"; |
| OS << "#undef LAST_INHERITABLE_ATTR\n"; |
| OS << "#undef LAST_INHERITABLE_PARAM_ATTR\n"; |
| OS << "#undef LAST_MS_INHERITABLE_ATTR\n"; |
| OS << "#undef ATTR\n"; |
| } |
| |
| // Emits the code to read an attribute from a precompiled header. |
| void EmitClangAttrPCHRead(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("Attribute deserialization code", OS); |
| |
| Record *InhClass = Records.getClass("InheritableAttr"); |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"), |
| ArgRecords; |
| std::vector<Record*>::iterator i = Attrs.begin(), e = Attrs.end(), ai, ae; |
| std::vector<Argument*> Args; |
| std::vector<Argument*>::iterator ri, re; |
| |
| OS << " switch (Kind) {\n"; |
| OS << " default:\n"; |
| OS << " assert(0 && \"Unknown attribute!\");\n"; |
| OS << " break;\n"; |
| for (; i != e; ++i) { |
| Record &R = **i; |
| if (!R.getValueAsBit("ASTNode")) |
| continue; |
| |
| OS << " case attr::" << R.getName() << ": {\n"; |
| if (R.isSubClassOf(InhClass)) |
| OS << " bool isInherited = Record[Idx++];\n"; |
| ArgRecords = R.getValueAsListOfDefs("Args"); |
| Args.clear(); |
| for (ai = ArgRecords.begin(), ae = ArgRecords.end(); ai != ae; ++ai) { |
| Argument *A = createArgument(**ai, R.getName()); |
| Args.push_back(A); |
| A->writePCHReadDecls(OS); |
| } |
| OS << " New = new (Context) " << R.getName() << "Attr(Range, Context"; |
| for (ri = Args.begin(), re = Args.end(); ri != re; ++ri) { |
| OS << ", "; |
| (*ri)->writePCHReadArgs(OS); |
| } |
| OS << ");\n"; |
| if (R.isSubClassOf(InhClass)) |
| OS << " cast<InheritableAttr>(New)->setInherited(isInherited);\n"; |
| OS << " break;\n"; |
| OS << " }\n"; |
| } |
| OS << " }\n"; |
| } |
| |
| // Emits the code to write an attribute to a precompiled header. |
| void EmitClangAttrPCHWrite(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("Attribute serialization code", OS); |
| |
| Record *InhClass = Records.getClass("InheritableAttr"); |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"), Args; |
| std::vector<Record*>::iterator i = Attrs.begin(), e = Attrs.end(), ai, ae; |
| |
| OS << " switch (A->getKind()) {\n"; |
| OS << " default:\n"; |
| OS << " llvm_unreachable(\"Unknown attribute kind!\");\n"; |
| OS << " break;\n"; |
| for (; i != e; ++i) { |
| Record &R = **i; |
| if (!R.getValueAsBit("ASTNode")) |
| continue; |
| OS << " case attr::" << R.getName() << ": {\n"; |
| Args = R.getValueAsListOfDefs("Args"); |
| if (R.isSubClassOf(InhClass) || !Args.empty()) |
| OS << " const " << R.getName() << "Attr *SA = cast<" << R.getName() |
| << "Attr>(A);\n"; |
| if (R.isSubClassOf(InhClass)) |
| OS << " Record.push_back(SA->isInherited());\n"; |
| for (ai = Args.begin(), ae = Args.end(); ai != ae; ++ai) |
| createArgument(**ai, R.getName())->writePCHWrite(OS); |
| OS << " break;\n"; |
| OS << " }\n"; |
| } |
| OS << " }\n"; |
| } |
| |
| // Emits the list of spellings for attributes. |
| void EmitClangAttrSpellingList(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("llvm::StringSwitch code to match all known attributes", |
| OS); |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| |
| for (std::vector<Record*>::iterator I = Attrs.begin(), E = Attrs.end(); I != E; ++I) { |
| Record &Attr = **I; |
| |
| std::vector<Record*> Spellings = Attr.getValueAsListOfDefs("Spellings"); |
| |
| for (std::vector<Record*>::const_iterator I = Spellings.begin(), E = Spellings.end(); I != E; ++I) { |
| OS << ".Case(\"" << (*I)->getValueAsString("Name") << "\", true)\n"; |
| } |
| } |
| |
| } |
| |
| void EmitClangAttrSpellingListIndex(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("Code to translate different attribute spellings " |
| "into internal identifiers", OS); |
| |
| OS << |
| " unsigned Index = 0;\n" |
| " switch (AttrKind) {\n" |
| " default:\n" |
| " llvm_unreachable(\"Unknown attribute kind!\");\n" |
| " break;\n"; |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| for (std::vector<Record*>::const_iterator I = Attrs.begin(), E = Attrs.end(); |
| I != E; ++I) { |
| Record &R = **I; |
| // We only care about attributes that participate in Sema checking, so |
| // skip those attributes that are not able to make their way to Sema. |
| if (!R.getValueAsBit("SemaHandler")) |
| continue; |
| |
| std::vector<Record*> Spellings = R.getValueAsListOfDefs("Spellings"); |
| // Each distinct spelling yields an attribute kind. |
| if (R.getValueAsBit("DistinctSpellings")) { |
| for (unsigned I = 0; I < Spellings.size(); ++ I) { |
| OS << |
| " case AT_" << Spellings[I]->getValueAsString("Name") << ": \n" |
| " Index = " << I << ";\n" |
| " break;\n"; |
| } |
| } else { |
| OS << " case AT_" << R.getName() << " : {\n"; |
| for (unsigned I = 0; I < Spellings.size(); ++ I) { |
| SmallString<16> Namespace; |
| if (Spellings[I]->getValueAsString("Variety") == "CXX11") |
| Namespace = Spellings[I]->getValueAsString("Namespace"); |
| else |
| Namespace = ""; |
| |
| OS << " if (Name == \"" |
| << Spellings[I]->getValueAsString("Name") << "\" && " |
| << "SyntaxUsed == " |
| << StringSwitch<unsigned>(Spellings[I]->getValueAsString("Variety")) |
| .Case("GNU", 0) |
| .Case("CXX11", 1) |
| .Case("Declspec", 2) |
| .Case("Keyword", 3) |
| .Default(0) |
| << " && Scope == \"" << Namespace << "\")\n" |
| << " return " << I << ";\n"; |
| } |
| |
| OS << " break;\n"; |
| OS << " }\n"; |
| } |
| } |
| |
| OS << " }\n"; |
| OS << " return Index;\n"; |
| } |
| |
| // Emits the LateParsed property for attributes. |
| void EmitClangAttrLateParsedList(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("llvm::StringSwitch code to match late parsed " |
| "attributes", OS); |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| |
| for (std::vector<Record*>::iterator I = Attrs.begin(), E = Attrs.end(); |
| I != E; ++I) { |
| Record &Attr = **I; |
| |
| bool LateParsed = Attr.getValueAsBit("LateParsed"); |
| |
| if (LateParsed) { |
| std::vector<Record*> Spellings = |
| Attr.getValueAsListOfDefs("Spellings"); |
| |
| // FIXME: Handle non-GNU attributes |
| for (std::vector<Record*>::const_iterator I = Spellings.begin(), |
| E = Spellings.end(); I != E; ++I) { |
| if ((*I)->getValueAsString("Variety") != "GNU") |
| continue; |
| OS << ".Case(\"" << (*I)->getValueAsString("Name") << "\", " |
| << LateParsed << ")\n"; |
| } |
| } |
| } |
| } |
| |
| // Emits code to instantiate dependent attributes on templates. |
| void EmitClangAttrTemplateInstantiate(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("Template instantiation code for attributes", OS); |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| |
| OS << "namespace clang {\n" |
| << "namespace sema {\n\n" |
| << "Attr *instantiateTemplateAttribute(const Attr *At, ASTContext &C, " |
| << "Sema &S,\n" |
| << " const MultiLevelTemplateArgumentList &TemplateArgs) {\n" |
| << " switch (At->getKind()) {\n" |
| << " default:\n" |
| << " break;\n"; |
| |
| for (std::vector<Record*>::iterator I = Attrs.begin(), E = Attrs.end(); |
| I != E; ++I) { |
| Record &R = **I; |
| if (!R.getValueAsBit("ASTNode")) |
| continue; |
| |
| OS << " case attr::" << R.getName() << ": {\n"; |
| bool ShouldClone = R.getValueAsBit("Clone"); |
| |
| if (!ShouldClone) { |
| OS << " return NULL;\n"; |
| OS << " }\n"; |
| continue; |
| } |
| |
| OS << " const " << R.getName() << "Attr *A = cast<" |
| << R.getName() << "Attr>(At);\n"; |
| bool TDependent = R.getValueAsBit("TemplateDependent"); |
| |
| if (!TDependent) { |
| OS << " return A->clone(C);\n"; |
| OS << " }\n"; |
| continue; |
| } |
| |
| std::vector<Record*> ArgRecords = R.getValueAsListOfDefs("Args"); |
| std::vector<Argument*> Args; |
| std::vector<Argument*>::iterator ai, ae; |
| Args.reserve(ArgRecords.size()); |
| |
| for (std::vector<Record*>::iterator ri = ArgRecords.begin(), |
| re = ArgRecords.end(); |
| ri != re; ++ri) { |
| Record &ArgRecord = **ri; |
| Argument *Arg = createArgument(ArgRecord, R.getName()); |
| assert(Arg); |
| Args.push_back(Arg); |
| } |
| ae = Args.end(); |
| |
| for (ai = Args.begin(); ai != ae; ++ai) { |
| (*ai)->writeTemplateInstantiation(OS); |
| } |
| OS << " return new (C) " << R.getName() << "Attr(A->getLocation(), C"; |
| for (ai = Args.begin(); ai != ae; ++ai) { |
| OS << ", "; |
| (*ai)->writeTemplateInstantiationArgs(OS); |
| } |
| OS << ");\n }\n"; |
| } |
| OS << " } // end switch\n" |
| << " llvm_unreachable(\"Unknown attribute!\");\n" |
| << " return 0;\n" |
| << "}\n\n" |
| << "} // end namespace sema\n" |
| << "} // end namespace clang\n"; |
| } |
| |
| // Emits the list of parsed attributes. |
| void EmitClangAttrParsedAttrList(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("List of all attributes that Clang recognizes", OS); |
| |
| OS << "#ifndef PARSED_ATTR\n"; |
| OS << "#define PARSED_ATTR(NAME) NAME\n"; |
| OS << "#endif\n\n"; |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| |
| for (std::vector<Record*>::iterator I = Attrs.begin(), E = Attrs.end(); |
| I != E; ++I) { |
| Record &Attr = **I; |
| |
| bool SemaHandler = Attr.getValueAsBit("SemaHandler"); |
| bool DistinctSpellings = Attr.getValueAsBit("DistinctSpellings"); |
| |
| if (SemaHandler) { |
| if (DistinctSpellings) { |
| std::vector<Record*> Spellings = Attr.getValueAsListOfDefs("Spellings"); |
| |
| for (std::vector<Record*>::const_iterator I = Spellings.begin(), |
| E = Spellings.end(); I != E; ++I) { |
| std::string AttrName = (*I)->getValueAsString("Name"); |
| |
| StringRef Spelling = NormalizeAttrName(AttrName); |
| |
| OS << "PARSED_ATTR(" << Spelling << ")\n"; |
| } |
| } else { |
| StringRef AttrName = Attr.getName(); |
| AttrName = NormalizeAttrName(AttrName); |
| OS << "PARSED_ATTR(" << AttrName << ")\n"; |
| } |
| } |
| } |
| } |
| |
| // Emits the kind list of parsed attributes |
| void EmitClangAttrParsedAttrKinds(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("Attribute name matcher", OS); |
| |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"); |
| |
| std::vector<StringMatcher::StringPair> Matches; |
| for (std::vector<Record*>::iterator I = Attrs.begin(), E = Attrs.end(); |
| I != E; ++I) { |
| Record &Attr = **I; |
| |
| bool SemaHandler = Attr.getValueAsBit("SemaHandler"); |
| bool Ignored = Attr.getValueAsBit("Ignored"); |
| bool DistinctSpellings = Attr.getValueAsBit("DistinctSpellings"); |
| if (SemaHandler || Ignored) { |
| std::vector<Record*> Spellings = Attr.getValueAsListOfDefs("Spellings"); |
| |
| for (std::vector<Record*>::const_iterator I = Spellings.begin(), |
| E = Spellings.end(); I != E; ++I) { |
| std::string RawSpelling = (*I)->getValueAsString("Name"); |
| StringRef AttrName = NormalizeAttrName(DistinctSpellings |
| ? StringRef(RawSpelling) |
| : StringRef(Attr.getName())); |
| |
| SmallString<64> Spelling; |
| if ((*I)->getValueAsString("Variety") == "CXX11") { |
| Spelling += (*I)->getValueAsString("Namespace"); |
| Spelling += "::"; |
| } |
| Spelling += NormalizeAttrSpelling(RawSpelling); |
| |
| if (SemaHandler) |
| Matches.push_back( |
| StringMatcher::StringPair( |
| StringRef(Spelling), |
| "return AttributeList::AT_" + AttrName.str() + ";")); |
| else |
| Matches.push_back( |
| StringMatcher::StringPair( |
| StringRef(Spelling), |
| "return AttributeList::IgnoredAttribute;")); |
| } |
| } |
| } |
| |
| OS << "static AttributeList::Kind getAttrKind(StringRef Name) {\n"; |
| StringMatcher("Name", Matches, OS).Emit(); |
| OS << "return AttributeList::UnknownAttribute;\n" |
| << "}\n"; |
| } |
| |
| // Emits the code to dump an attribute. |
| void EmitClangAttrDump(RecordKeeper &Records, raw_ostream &OS) { |
| emitSourceFileHeader("Attribute dumper", OS); |
| |
| OS << |
| " switch (A->getKind()) {\n" |
| " default:\n" |
| " llvm_unreachable(\"Unknown attribute kind!\");\n" |
| " break;\n"; |
| std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"), Args; |
| for (std::vector<Record*>::iterator I = Attrs.begin(), E = Attrs.end(); |
| I != E; ++I) { |
| Record &R = **I; |
| if (!R.getValueAsBit("ASTNode")) |
| continue; |
| OS << " case attr::" << R.getName() << ": {\n"; |
| Args = R.getValueAsListOfDefs("Args"); |
| if (!Args.empty()) { |
| OS << " const " << R.getName() << "Attr *SA = cast<" << R.getName() |
| << "Attr>(A);\n"; |
| for (std::vector<Record*>::iterator I = Args.begin(), E = Args.end(); |
| I != E; ++I) |
| createArgument(**I, R.getName())->writeDump(OS); |
| |
| // Code for detecting the last child. |
| OS << " bool OldMoreChildren = hasMoreChildren();\n"; |
| OS << " bool MoreChildren = OldMoreChildren;\n"; |
| |
| for (std::vector<Record*>::iterator I = Args.begin(), E = Args.end(); |
| I != E; ++I) { |
| // More code for detecting the last child. |
| OS << " MoreChildren = OldMoreChildren"; |
| for (std::vector<Record*>::iterator Next = I + 1; Next != E; ++Next) { |
| OS << " || "; |
| createArgument(**Next, R.getName())->writeHasChildren(OS); |
| } |
| OS << ";\n"; |
| OS << " setMoreChildren(MoreChildren);\n"; |
| |
| createArgument(**I, R.getName())->writeDumpChildren(OS); |
| } |
| |
| // Reset the last child. |
| OS << " setMoreChildren(OldMoreChildren);\n"; |
| } |
| OS << |
| " break;\n" |
| " }\n"; |
| } |
| OS << " }\n"; |
| } |
| |
| } // end namespace clang |
