//===- 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 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";
Record *InhClass = Records.getClass("InheritableAttr");
Record *InhParamClass = Records.getClass("InheritableParamAttr");
std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr"),
NonInhAttrs, InhAttrs, InhParamAttrs;
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(InhClass))
InhAttrs.push_back(*i);
else
NonInhAttrs.push_back(*i);
}
EmitAttrList(OS, "INHERITABLE_PARAM_ATTR", InhParamAttrs);
EmitAttrList(OS, "INHERITABLE_ATTR", InhAttrs);
EmitAttrList(OS, "ATTR", NonInhAttrs);
OS << "#undef LAST_ATTR\n";
OS << "#undef INHERITABLE_ATTR\n";
OS << "#undef LAST_INHERITABLE_ATTR\n";
OS << "#undef LAST_INHERITABLE_PARAM_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