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ClangAttrEmitter.cpp
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//===-- ClangAttrEmitter.cpp - Generate Clang attribute handling ----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// These tablegen backends emit Clang attribute processing code
//
//===----------------------------------------------------------------------===//
#include "TableGenBackends.h"
#include "ASTTableGen.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include "llvm/TableGen/StringMatcher.h"
#include "llvm/TableGen/TableGenBackend.h"
#include <cassert>
#include <cctype>
#include <cstddef>
#include <cstdint>
#include <map>
#include <memory>
#include <optional>
#include <set>
#include <string>
#include <utility>
#include <vector>
using namespace llvm;
namespace {
class FlattenedSpelling {
StringRef V, N, NS;
bool K = false;
const Record &OriginalSpelling;
public:
FlattenedSpelling(StringRef Variety, StringRef Name, StringRef Namespace,
bool KnownToGCC, const Record &OriginalSpelling)
: V(Variety), N(Name), NS(Namespace), K(KnownToGCC),
OriginalSpelling(OriginalSpelling) {}
explicit FlattenedSpelling(const Record &Spelling)
: V(Spelling.getValueAsString("Variety")),
N(Spelling.getValueAsString("Name")), OriginalSpelling(Spelling) {
assert(V != "GCC" && V != "Clang" &&
"Given a GCC spelling, which means this hasn't been flattened!");
if (V == "CXX11" || V == "C23" || V == "Pragma")
NS = Spelling.getValueAsString("Namespace");
}
StringRef variety() const { return V; }
StringRef name() const { return N; }
StringRef nameSpace() const { return NS; }
bool knownToGCC() const { return K; }
const Record &getSpellingRecord() const { return OriginalSpelling; }
};
struct FlattenedSpellingInfo {
FlattenedSpellingInfo(StringRef Syntax, StringRef Scope,
const std::string &TargetTest, uint32_t ArgMask)
: Syntax(Syntax), Scope(Scope), TargetTest(TargetTest), ArgMask(ArgMask) {
}
StringRef Syntax;
StringRef Scope;
std::string TargetTest;
uint32_t ArgMask;
};
using FSIVecTy = std::vector<FlattenedSpellingInfo>;
} // end anonymous namespace
static bool GenerateTargetSpecificAttrChecks(const Record *R,
std::vector<StringRef> &Arches,
std::string &Test,
std::string *FnName);
static bool isStringLiteralArgument(const Record *Arg);
static bool isVariadicStringLiteralArgument(const Record *Arg);
static std::vector<FlattenedSpelling>
GetFlattenedSpellings(const Record &Attr) {
std::vector<FlattenedSpelling> Ret;
for (const auto &Spelling : Attr.getValueAsListOfDefs("Spellings")) {
StringRef Variety = Spelling->getValueAsString("Variety");
StringRef Name = Spelling->getValueAsString("Name");
if (Variety == "GCC") {
Ret.emplace_back("GNU", Name, "", true, *Spelling);
Ret.emplace_back("CXX11", Name, "gnu", true, *Spelling);
if (Spelling->getValueAsBit("AllowInC"))
Ret.emplace_back("C23", Name, "gnu", true, *Spelling);
} else if (Variety == "Clang") {
Ret.emplace_back("GNU", Name, "", false, *Spelling);
Ret.emplace_back("CXX11", Name, "clang", false, *Spelling);
if (Spelling->getValueAsBit("AllowInC"))
Ret.emplace_back("C23", Name, "clang", false, *Spelling);
} else if (Variety == "ClangGCC") {
Ret.emplace_back("GNU", Name, "", false, *Spelling);
Ret.emplace_back("CXX11", Name, "clang", false, *Spelling);
Ret.emplace_back("CXX11", Name, "gnu", false, *Spelling);
if (Spelling->getValueAsBit("AllowInC")) {
Ret.emplace_back("C23", Name, "clang", false, *Spelling);
Ret.emplace_back("C23", Name, "gnu", false, *Spelling);
}
} else {
Ret.push_back(FlattenedSpelling(*Spelling));
}
}
return Ret;
}
static std::string ReadPCHRecord(StringRef type) {
return StringSwitch<std::string>(type)
.EndsWith("Decl *", "Record.readDeclAs<" + type.drop_back().str() + ">()")
.Case("TypeSourceInfo *", "Record.readTypeSourceInfo()")
.Case("Expr *", "Record.readExpr()")
.Case("IdentifierInfo *", "Record.readIdentifier()")
.Case("StringRef", "Record.readString()")
.Case("ParamIdx", "ParamIdx::deserialize(Record.readInt())")
.Case("OMPTraitInfo *", "Record.readOMPTraitInfo()")
.Default("Record.readInt()");
}
// Get a type that is suitable for storing an object of the specified type.
static StringRef getStorageType(StringRef type) {
return StringSwitch<StringRef>(type)
.Case("StringRef", "std::string")
.Default(type);
}
// Assumes that the way to get the value is SA->getname()
static std::string WritePCHRecord(StringRef type, StringRef name) {
return "Record." +
StringSwitch<std::string>(type)
.EndsWith("Decl *", "AddDeclRef(" + name.str() + ");\n")
.Case("TypeSourceInfo *",
"AddTypeSourceInfo(" + name.str() + ");\n")
.Case("Expr *", "AddStmt(" + name.str() + ");\n")
.Case("IdentifierInfo *",
"AddIdentifierRef(" + name.str() + ");\n")
.Case("StringRef", "AddString(" + name.str() + ");\n")
.Case("ParamIdx", "push_back(" + name.str() + ".serialize());\n")
.Case("OMPTraitInfo *", "writeOMPTraitInfo(" + name.str() + ");\n")
.Default("push_back(" + name.str() + ");\n");
}
// Normalize attribute name by removing leading and trailing
// underscores. For example, __foo, foo__, __foo__ would
// become foo.
static StringRef NormalizeAttrName(StringRef AttrName) {
AttrName.consume_front("__");
AttrName.consume_back("__");
return AttrName;
}
// Normalize the name by removing any and all leading and trailing underscores.
// This is different from NormalizeAttrName in that it also handles names like
// _pascal and __pascal.
static StringRef NormalizeNameForSpellingComparison(StringRef Name) {
return Name.trim("_");
}
// Normalize the spelling of a GNU attribute (i.e. "x" in "__attribute__((x))"),
// removing "__" if it appears at the beginning and end of the attribute's name.
static StringRef NormalizeGNUAttrSpelling(StringRef AttrSpelling) {
if (AttrSpelling.starts_with("__") && AttrSpelling.ends_with("__")) {
AttrSpelling = AttrSpelling.substr(2, AttrSpelling.size() - 4);
}
return AttrSpelling;
}
typedef std::vector<std::pair<std::string, const Record *>> ParsedAttrMap;
static ParsedAttrMap getParsedAttrList(const RecordKeeper &Records,
ParsedAttrMap *Dupes = nullptr,
bool SemaOnly = true) {
std::set<std::string> Seen;
ParsedAttrMap R;
for (const Record *Attr : Records.getAllDerivedDefinitions("Attr")) {
if (!SemaOnly || Attr->getValueAsBit("SemaHandler")) {
std::string AN;
if (Attr->isSubClassOf("TargetSpecificAttr") &&
!Attr->isValueUnset("ParseKind")) {
AN = Attr->getValueAsString("ParseKind").str();
// If this attribute has already been handled, it does not need to be
// handled again.
if (!Seen.insert(AN).second) {
if (Dupes)
Dupes->push_back(std::make_pair(AN, Attr));
continue;
}
} else
AN = NormalizeAttrName(Attr->getName()).str();
R.push_back(std::make_pair(AN, Attr));
}
}
return R;
}
namespace {
class Argument {
std::string lowerName, upperName;
StringRef attrName;
bool isOpt;
bool Fake;
public:
Argument(StringRef Arg, StringRef Attr)
: lowerName(Arg.str()), upperName(lowerName), attrName(Attr),
isOpt(false), Fake(false) {
if (!lowerName.empty()) {
lowerName[0] = std::tolower(lowerName[0]);
upperName[0] = std::toupper(upperName[0]);
}
// Work around MinGW's macro definition of 'interface' to 'struct'. We
// have an attribute argument called 'Interface', so only the lower case
// name conflicts with the macro definition.
if (lowerName == "interface")
lowerName = "interface_";
}
Argument(const Record &Arg, StringRef Attr)
: Argument(Arg.getValueAsString("Name"), Attr) {}
virtual ~Argument() = default;
StringRef getLowerName() const { return lowerName; }
StringRef getUpperName() const { return upperName; }
StringRef getAttrName() const { return attrName; }
bool isOptional() const { return isOpt; }
void setOptional(bool set) { isOpt = set; }
bool isFake() const { return Fake; }
void setFake(bool fake) { Fake = fake; }
// 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 writeASTVisitorTraversal(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 writeCtorDefaultInitializers(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 std::string getIsOmitted() const { return "false"; }
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"; }
virtual bool isEnumArg() const { return false; }
virtual bool isVariadicEnumArg() const { return false; }
virtual bool isVariadic() const { return false; }
virtual void writeImplicitCtorArgs(raw_ostream &OS) const {
OS << getUpperName();
}
};
class SimpleArgument : public Argument {
std::string type;
public:
SimpleArgument(const Record &Arg, StringRef Attr, std::string T)
: Argument(Arg, Attr), type(std::move(T)) {}
std::string getType() const { return type; }
void writeAccessors(raw_ostream &OS) const override {
OS << " " << type << " get" << getUpperName() << "() const {\n";
OS << " return " << getLowerName() << ";\n";
OS << " }";
}
void writeCloneArgs(raw_ostream &OS) const override {
OS << getLowerName();
}
void writeTemplateInstantiationArgs(raw_ostream &OS) const override {
OS << "A->get" << getUpperName() << "()";
}
void writeCtorInitializers(raw_ostream &OS) const override {
OS << getLowerName() << "(" << getUpperName() << ")";
}
void writeCtorDefaultInitializers(raw_ostream &OS) const override {
OS << getLowerName() << "()";
}
void writeCtorParameters(raw_ostream &OS) const override {
OS << type << " " << getUpperName();
}
void writeDeclarations(raw_ostream &OS) const override {
OS << type << " " << getLowerName() << ";";
}
void writePCHReadDecls(raw_ostream &OS) const override {
std::string read = ReadPCHRecord(type);
OS << " " << type << " " << getLowerName() << " = " << read << ";\n";
}
void writePCHReadArgs(raw_ostream &OS) const override {
OS << getLowerName();
}
void writePCHWrite(raw_ostream &OS) const override {
OS << " "
<< WritePCHRecord(type, "SA->get" + getUpperName().str() + "()");
}
std::string getIsOmitted() const override {
auto IsOneOf = [](StringRef subject, auto... list) {
return ((subject == list) || ...);
};
if (IsOneOf(type, "IdentifierInfo *", "Expr *"))
return "!get" + getUpperName().str() + "()";
if (IsOneOf(type, "TypeSourceInfo *"))
return "!get" + getUpperName().str() + "Loc()";
if (IsOneOf(type, "ParamIdx"))
return "!get" + getUpperName().str() + "().isValid()";
assert(IsOneOf(type, "unsigned", "int", "bool", "FunctionDecl *",
"VarDecl *"));
return "false";
}
void writeValue(raw_ostream &OS) const override {
if (type == "FunctionDecl *")
OS << "\" << get" << getUpperName()
<< "()->getNameInfo().getAsString() << \"";
else if (type == "IdentifierInfo *")
// Some non-optional (comma required) identifier arguments can be the
// empty string but are then recorded as a nullptr.
OS << "\" << (get" << getUpperName() << "() ? get" << getUpperName()
<< "()->getName() : \"\") << \"";
else if (type == "VarDecl *")
OS << "\" << get" << getUpperName() << "()->getName() << \"";
else if (type == "TypeSourceInfo *")
OS << "\" << get" << getUpperName() << "().getAsString() << \"";
else if (type == "ParamIdx")
OS << "\" << get" << getUpperName() << "().getSourceIndex() << \"";
else
OS << "\" << get" << getUpperName() << "() << \"";
}
void writeDump(raw_ostream &OS) const override {
if (StringRef(type).ends_with("Decl *")) {
OS << " OS << \" \";\n";
OS << " dumpBareDeclRef(SA->get" << getUpperName() << "());\n";
} else if (type == "IdentifierInfo *") {
// Some non-optional (comma required) identifier arguments can be the
// empty string but are then recorded as a nullptr.
OS << " if (SA->get" << getUpperName() << "())\n"
<< " OS << \" \" << SA->get" << getUpperName()
<< "()->getName();\n";
} else if (type == "TypeSourceInfo *") {
if (isOptional())
OS << " if (SA->get" << getUpperName() << "Loc())";
OS << " OS << \" \" << SA->get" << getUpperName()
<< "().getAsString();\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 if (type == "ParamIdx") {
if (isOptional())
OS << " if (SA->get" << getUpperName() << "().isValid())\n ";
OS << " OS << \" \" << SA->get" << getUpperName()
<< "().getSourceIndex();\n";
} else if (type == "OMPTraitInfo *") {
OS << " OS << \" \" << SA->get" << getUpperName() << "();\n";
} else {
llvm_unreachable("Unknown SimpleArgument type!");
}
}
};
class DefaultSimpleArgument : public SimpleArgument {
int64_t Default;
public:
DefaultSimpleArgument(const Record &Arg, StringRef Attr,
std::string T, int64_t Default)
: SimpleArgument(Arg, Attr, T), Default(Default) {}
void writeAccessors(raw_ostream &OS) const override {
SimpleArgument::writeAccessors(OS);
OS << "\n\n static const " << getType() << " Default" << getUpperName()
<< " = ";
if (getType() == "bool")
OS << (Default != 0 ? "true" : "false");
else
OS << Default;
OS << ";";
}
};
class StringArgument : public Argument {
public:
StringArgument(const Record &Arg, StringRef Attr)
: Argument(Arg, Attr)
{}
void writeAccessors(raw_ostream &OS) const override {
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 << " if (!S.empty())\n";
OS << " std::memcpy(this->" << getLowerName() << ", S.data(), "
<< getLowerName() << "Length);\n";
OS << " }";
}
void writeCloneArgs(raw_ostream &OS) const override {
OS << "get" << getUpperName() << "()";
}
void writeTemplateInstantiationArgs(raw_ostream &OS) const override {
OS << "A->get" << getUpperName() << "()";
}
void writeCtorBody(raw_ostream &OS) const override {
OS << " if (!" << getUpperName() << ".empty())\n";
OS << " std::memcpy(" << getLowerName() << ", " << getUpperName()
<< ".data(), " << getLowerName() << "Length);\n";
}
void writeCtorInitializers(raw_ostream &OS) const override {
OS << getLowerName() << "Length(" << getUpperName() << ".size()),"
<< getLowerName() << "(new (Ctx, 1) char[" << getLowerName()
<< "Length])";
}
void writeCtorDefaultInitializers(raw_ostream &OS) const override {
OS << getLowerName() << "Length(0)," << getLowerName() << "(nullptr)";
}
void writeCtorParameters(raw_ostream &OS) const override {
OS << "llvm::StringRef " << getUpperName();
}
void writeDeclarations(raw_ostream &OS) const override {
OS << "unsigned " << getLowerName() << "Length;\n";
OS << "char *" << getLowerName() << ";";
}
void writePCHReadDecls(raw_ostream &OS) const override {
OS << " std::string " << getLowerName()
<< "= Record.readString();\n";
}
void writePCHReadArgs(raw_ostream &OS) const override {
OS << getLowerName();
}
void writePCHWrite(raw_ostream &OS) const override {
OS << " Record.AddString(SA->get" << getUpperName() << "());\n";
}
void writeValue(raw_ostream &OS) const override {
OS << "\\\"\" << get" << getUpperName() << "() << \"\\\"";
}
void writeDump(raw_ostream &OS) const override {
OS << " OS << \" \\\"\" << SA->get" << getUpperName()
<< "() << \"\\\"\";\n";
}
};
class AlignedArgument : public Argument {
public:
AlignedArgument(const Record &Arg, StringRef Attr)
: Argument(Arg, Attr)
{}
void writeAccessors(raw_ostream &OS) const override {
OS << " bool is" << getUpperName() << "Dependent() const;\n";
OS << " bool is" << getUpperName() << "ErrorDependent() 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 << " }";
OS << " std::optional<unsigned> getCached" << getUpperName()
<< "Value() const {\n";
OS << " return " << getLowerName() << "Cache;\n";
OS << " }";
OS << " void setCached" << getUpperName()
<< "Value(unsigned AlignVal) {\n";
OS << " " << getLowerName() << "Cache = AlignVal;\n";
OS << " }";
}
void writeAccessorDefinitions(raw_ostream &OS) const override {
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";
OS << "bool " << getAttrName() << "Attr::is" << getUpperName()
<< "ErrorDependent() const {\n";
OS << " if (is" << getLowerName() << "Expr)\n";
OS << " return " << getLowerName() << "Expr && " << getLowerName()
<< "Expr->containsErrors();\n";
OS << " return " << getLowerName()
<< "Type->getType()->containsErrors();\n";
OS << "}\n";
}
void writeASTVisitorTraversal(raw_ostream &OS) const override {
StringRef Name = getUpperName();
OS << " if (A->is" << Name << "Expr()) {\n"
<< " if (!getDerived().TraverseStmt(A->get" << Name << "Expr()))\n"
<< " return false;\n"
<< " } else if (auto *TSI = A->get" << Name << "Type()) {\n"
<< " if (!getDerived().TraverseTypeLoc(TSI->getTypeLoc()))\n"
<< " return false;\n"
<< " }\n";
}
void writeCloneArgs(raw_ostream &OS) const override {
OS << "is" << getLowerName() << "Expr, is" << getLowerName()
<< "Expr ? static_cast<void*>(" << getLowerName()
<< "Expr) : " << getLowerName()
<< "Type";
}
void writeTemplateInstantiationArgs(raw_ostream &OS) const override {
// FIXME: move the definition in Sema::InstantiateAttrs to here.
// In the meantime, aligned attributes are cloned.
}
void writeCtorBody(raw_ostream &OS) const override {
OS << " if (is" << getLowerName() << "Expr)\n";
OS << " " << getLowerName() << "Expr = reinterpret_cast<Expr *>("
<< getUpperName() << ");\n";
OS << " else\n";
OS << " " << getLowerName()
<< "Type = reinterpret_cast<TypeSourceInfo *>(" << getUpperName()
<< ");\n";
}
void writeCtorInitializers(raw_ostream &OS) const override {
OS << "is" << getLowerName() << "Expr(Is" << getUpperName() << "Expr)";
}
void writeCtorDefaultInitializers(raw_ostream &OS) const override {
OS << "is" << getLowerName() << "Expr(false)";
}
void writeCtorParameters(raw_ostream &OS) const override {
OS << "bool Is" << getUpperName() << "Expr, void *" << getUpperName();
}
void writeImplicitCtorArgs(raw_ostream &OS) const override {
OS << "Is" << getUpperName() << "Expr, " << getUpperName();
}
void writeDeclarations(raw_ostream &OS) const override {
OS << "bool is" << getLowerName() << "Expr;\n";
OS << "union {\n";
OS << "Expr *" << getLowerName() << "Expr;\n";
OS << "TypeSourceInfo *" << getLowerName() << "Type;\n";
OS << "};\n";
OS << "std::optional<unsigned> " << getLowerName() << "Cache;\n";
}
void writePCHReadArgs(raw_ostream &OS) const override {
OS << "is" << getLowerName() << "Expr, " << getLowerName() << "Ptr";
}
void writePCHReadDecls(raw_ostream &OS) const override {
OS << " bool is" << getLowerName() << "Expr = Record.readInt();\n";
OS << " void *" << getLowerName() << "Ptr;\n";
OS << " if (is" << getLowerName() << "Expr)\n";
OS << " " << getLowerName() << "Ptr = Record.readExpr();\n";
OS << " else\n";
OS << " " << getLowerName()
<< "Ptr = Record.readTypeSourceInfo();\n";
}
void writePCHWrite(raw_ostream &OS) const override {
OS << " Record.push_back(SA->is" << getUpperName() << "Expr());\n";
OS << " if (SA->is" << getUpperName() << "Expr())\n";
OS << " Record.AddStmt(SA->get" << getUpperName() << "Expr());\n";
OS << " else\n";
OS << " Record.AddTypeSourceInfo(SA->get" << getUpperName()
<< "Type());\n";
}
std::string getIsOmitted() const override {
return "!((is" + getLowerName().str() + "Expr && " +
getLowerName().str() + "Expr) || (!is" + getLowerName().str() +
"Expr && " + getLowerName().str() + "Type))";
}
void writeValue(raw_ostream &OS) const override {
OS << "\";\n";
OS << " if (is" << getLowerName() << "Expr && " << getLowerName()
<< "Expr)";
OS << " " << getLowerName()
<< "Expr->printPretty(OS, nullptr, Policy);\n";
OS << " if (!is" << getLowerName() << "Expr && " << getLowerName()
<< "Type)";
OS << " " << getLowerName()
<< "Type->getType().print(OS, Policy);\n";
OS << " OS << \"";
}
void writeDump(raw_ostream &OS) const override {
OS << " if (!SA->is" << getUpperName() << "Expr())\n";
OS << " dumpType(SA->get" << getUpperName()
<< "Type()->getType());\n";
}
void writeDumpChildren(raw_ostream &OS) const override {
OS << " if (SA->is" << getUpperName() << "Expr())\n";
OS << " Visit(SA->get" << getUpperName() << "Expr());\n";
}
void writeHasChildren(raw_ostream &OS) const override {
OS << "SA->is" << getUpperName() << "Expr()";
}
};
class VariadicArgument : public Argument {
std::string Type, ArgName, ArgSizeName, RangeName;
protected:
// Assumed to receive a parameter: raw_ostream OS.
virtual void writeValueImpl(raw_ostream &OS) const {
OS << " OS << Val;\n";
}
// Assumed to receive a parameter: raw_ostream OS.
virtual void writeDumpImpl(raw_ostream &OS) const {
OS << " OS << \" \" << Val;\n";
}
public:
VariadicArgument(const Record &Arg, StringRef Attr, std::string T)
: Argument(Arg, Attr), Type(std::move(T)),
ArgName(getLowerName().str() + "_"), ArgSizeName(ArgName + "Size"),
RangeName(getLowerName().str()) {}
VariadicArgument(StringRef Arg, StringRef Attr, std::string T)
: Argument(Arg, Attr), Type(std::move(T)),
ArgName(getLowerName().str() + "_"), ArgSizeName(ArgName + "Size"),
RangeName(getLowerName().str()) {}
const std::string &getType() const { return Type; }
const std::string &getArgName() const { return ArgName; }
const std::string &getArgSizeName() const { return ArgSizeName; }
bool isVariadic() const override { return true; }
void writeAccessors(raw_ostream &OS) const override {
std::string IteratorType = getLowerName().str() + "_iterator";
std::string BeginFn = getLowerName().str() + "_begin()";
std::string EndFn = getLowerName().str() + "_end()";
OS << " typedef " << Type << "* " << IteratorType << ";\n";
OS << " " << IteratorType << " " << BeginFn << " const {"
<< " return " << ArgName << "; }\n";
OS << " " << IteratorType << " " << EndFn << " const {"
<< " return " << ArgName << " + " << ArgSizeName << "; }\n";
OS << " unsigned " << getLowerName() << "_size() const {"
<< " return " << ArgSizeName << "; }\n";
OS << " llvm::iterator_range<" << IteratorType << "> " << RangeName
<< "() const { return llvm::make_range(" << BeginFn << ", " << EndFn
<< "); }\n";
}
void writeSetter(raw_ostream &OS) const {
OS << " void set" << getUpperName() << "(ASTContext &Ctx, ";
writeCtorParameters(OS);
OS << ") {\n";
OS << " " << ArgSizeName << " = " << getUpperName() << "Size;\n";
OS << " " << ArgName << " = new (Ctx, 16) " << getType() << "["
<< ArgSizeName << "];\n";
OS << " ";
writeCtorBody(OS);
OS << " }\n";
}
void writeCloneArgs(raw_ostream &OS) const override {
OS << ArgName << ", " << ArgSizeName;
}
void writeTemplateInstantiationArgs(raw_ostream &OS) const override {
// This isn't elegant, but we have to go through public methods...
OS << "A->" << getLowerName() << "_begin(), "
<< "A->" << getLowerName() << "_size()";
}
void writeASTVisitorTraversal(raw_ostream &OS) const override {
// FIXME: Traverse the elements.
}
void writeCtorBody(raw_ostream &OS) const override {
OS << " std::copy(" << getUpperName() << ", " << getUpperName() << " + "
<< ArgSizeName << ", " << ArgName << ");\n";
}
void writeCtorInitializers(raw_ostream &OS) const override {
OS << ArgSizeName << "(" << getUpperName() << "Size), "
<< ArgName << "(new (Ctx, 16) " << getType() << "["
<< ArgSizeName << "])";
}
void writeCtorDefaultInitializers(raw_ostream &OS) const override {
OS << ArgSizeName << "(0), " << ArgName << "(nullptr)";
}
void writeCtorParameters(raw_ostream &OS) const override {
OS << getType() << " *" << getUpperName() << ", unsigned "
<< getUpperName() << "Size";
}
void writeImplicitCtorArgs(raw_ostream &OS) const override {
OS << getUpperName() << ", " << getUpperName() << "Size";
}
void writeDeclarations(raw_ostream &OS) const override {
OS << " unsigned " << ArgSizeName << ";\n";
OS << " " << getType() << " *" << ArgName << ";";
}
void writePCHReadDecls(raw_ostream &OS) const override {
OS << " unsigned " << getLowerName() << "Size = Record.readInt();\n";
OS << " SmallVector<" << getType() << ", 4> "
<< getLowerName() << ";\n";
OS << " " << getLowerName() << ".reserve(" << getLowerName()
<< "Size);\n";
// If we can't store the values in the current type (if it's something
// like StringRef), store them in a different type and convert the
// container afterwards.
std::string StorageType = getStorageType(getType()).str();
std::string StorageName = getLowerName().str();
if (StorageType != getType()) {
StorageName += "Storage";
OS << " SmallVector<" << StorageType << ", 4> "
<< StorageName << ";\n";
OS << " " << StorageName << ".reserve(" << getLowerName()
<< "Size);\n";
}
OS << " for (unsigned i = 0; i != " << getLowerName() << "Size; ++i)\n";
std::string read = ReadPCHRecord(Type);
OS << " " << StorageName << ".push_back(" << read << ");\n";
if (StorageType != getType()) {
OS << " for (unsigned i = 0; i != " << getLowerName() << "Size; ++i)\n";
OS << " " << getLowerName() << ".push_back("
<< StorageName << "[i]);\n";
}
}
void writePCHReadArgs(raw_ostream &OS) const override {
OS << getLowerName() << ".data(), " << getLowerName() << "Size";
}
void writePCHWrite(raw_ostream &OS) const override {
OS << " Record.push_back(SA->" << getLowerName() << "_size());\n";
OS << " for (auto &Val : SA->" << RangeName << "())\n";
OS << " " << WritePCHRecord(Type, "Val");
}
void writeValue(raw_ostream &OS) const override {
OS << "\";\n";
OS << " for (const auto &Val : " << RangeName << "()) {\n"
<< " DelimitAttributeArgument(OS, IsFirstArgument);\n";
writeValueImpl(OS);
OS << " }\n";
OS << " OS << \"";
}
void writeDump(raw_ostream &OS) const override {
OS << " for (const auto &Val : SA->" << RangeName << "())\n";
writeDumpImpl(OS);
}
};
class VariadicOMPInteropInfoArgument : public VariadicArgument {
public:
VariadicOMPInteropInfoArgument(const Record &Arg, StringRef Attr)
: VariadicArgument(Arg, Attr, "OMPInteropInfo") {}
void writeDump(raw_ostream &OS) const override {
OS << " for (" << getAttrName() << "Attr::" << getLowerName()
<< "_iterator I = SA->" << getLowerName() << "_begin(), E = SA->"
<< getLowerName() << "_end(); I != E; ++I) {\n";
OS << " if (I->IsTarget && I->IsTargetSync)\n";
OS << " OS << \" Target_TargetSync\";\n";
OS << " else if (I->IsTarget)\n";
OS << " OS << \" Target\";\n";
OS << " else\n";
OS << " OS << \" TargetSync\";\n";
OS << " }\n";
}
void writePCHReadDecls(raw_ostream &OS) const override {
OS << " unsigned " << getLowerName() << "Size = Record.readInt();\n";
OS << " SmallVector<OMPInteropInfo, 4> " << getLowerName() << ";\n";
OS << " " << getLowerName() << ".reserve(" << getLowerName()
<< "Size);\n";
OS << " for (unsigned I = 0, E = " << getLowerName() << "Size; ";
OS << "I != E; ++I) {\n";
OS << " bool IsTarget = Record.readBool();\n";
OS << " bool IsTargetSync = Record.readBool();\n";
OS << " " << getLowerName()
<< ".emplace_back(IsTarget, IsTargetSync);\n";
OS << " }\n";
}
void writePCHWrite(raw_ostream &OS) const override {
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 << " Record.writeBool(I->IsTarget);\n";
OS << " Record.writeBool(I->IsTargetSync);\n";
OS << " }\n";
}
};
class VariadicParamIdxArgument : public VariadicArgument {
public:
VariadicParamIdxArgument(const Record &Arg, StringRef Attr)
: VariadicArgument(Arg, Attr, "ParamIdx") {}
public:
void writeValueImpl(raw_ostream &OS) const override {
OS << " OS << Val.getSourceIndex();\n";
}
void writeDumpImpl(raw_ostream &OS) const override {
OS << " OS << \" \" << Val.getSourceIndex();\n";
}
};
struct VariadicParamOrParamIdxArgument : public VariadicArgument {
VariadicParamOrParamIdxArgument(const Record &Arg, StringRef Attr)
: VariadicArgument(Arg, Attr, "int") {}
};
// Unique the enums, but maintain the original declaration ordering.
std::vector<StringRef>
uniqueEnumsInOrder(const std::vector<StringRef> &enums) {
std::vector<StringRef> uniques;
SmallDenseSet<StringRef, 8> unique_set;
for (const auto &i : enums) {
if (unique_set.insert(i).second)
uniques.push_back(i);
}
return uniques;
}
class EnumArgument : public Argument {
std::string fullType;
StringRef shortType;
std::vector<StringRef> values, enums, uniques;
bool isExternal;
bool isCovered;
public:
EnumArgument(const Record &Arg, StringRef Attr)
: Argument(Arg, Attr), values(Arg.getValueAsListOfStrings("Values")),
enums(Arg.getValueAsListOfStrings("Enums")),
uniques(uniqueEnumsInOrder(enums)),
isExternal(Arg.getValueAsBit("IsExternalType")),
isCovered(Arg.getValueAsBit("IsCovered")) {
StringRef Type = Arg.getValueAsString("Type");
shortType = isExternal ? Type.rsplit("::").second : Type;
// If shortType didn't contain :: at all rsplit will give us an empty
// string.
if (shortType.empty())
shortType = Type;
fullType = isExternal ? Type : (getAttrName() + "Attr::" + Type).str();
// FIXME: Emit a proper error
assert(!uniques.empty());
}
bool isEnumArg() const override { return true; }
void writeAccessors(raw_ostream &OS) const override {
OS << " " << fullType << " get" << getUpperName() << "() const {\n";
OS << " return " << getLowerName() << ";\n";
OS << " }";
}
void writeCloneArgs(raw_ostream &OS) const override {
OS << getLowerName();
}
void writeTemplateInstantiationArgs(raw_ostream &OS) const override {
OS << "A->get" << getUpperName() << "()";
}
void writeCtorInitializers(raw_ostream &OS) const override {
OS << getLowerName() << "(" << getUpperName() << ")";
}
void writeCtorDefaultInitializers(raw_ostream &OS) const override {
OS << getLowerName() << "(" << fullType << "(0))";
}
void writeCtorParameters(raw_ostream &OS) const override {
OS << fullType << " " << getUpperName();
}
void writeDeclarations(raw_ostream &OS) const override {
if (!isExternal) {
auto i = uniques.cbegin(), e = uniques.cend();
// The last one needs to not have a comma.
--e;
OS << "public:\n";
OS << " enum " << shortType << " {\n";
for (; i != e; ++i)
OS << " " << *i << ",\n";
OS << " " << *e << "\n";
OS << " };\n";
}
OS << "private:\n";
OS << " " << fullType << " " << getLowerName() << ";";
}
void writePCHReadDecls(raw_ostream &OS) const override {
OS << " " << fullType << " " << getLowerName() << "(static_cast<"
<< fullType << ">(Record.readInt()));\n";
}
void writePCHReadArgs(raw_ostream &OS) const override {
OS << getLowerName();
}
void writePCHWrite(raw_ostream &OS) const override {
OS << "Record.push_back(static_cast<uint64_t>(SA->get" << getUpperName()
<< "()));\n";
}
void writeValue(raw_ostream &OS) const override {
// FIXME: this isn't 100% correct -- some enum arguments require printing
// as a string literal, while others require printing as an identifier.
// Tablegen currently does not distinguish between the two forms.