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ASTNodeVisitor.cpp
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/************************************************************************
*
* CppSharp
* Licensed under the simplified BSD license. All rights reserved.
*
************************************************************************/
#include "ASTNodeVisitor.h"
#include <clang/AST/Type.h>
#include <clang/Basic/SourceManager.h>
#include <clang/Basic/Specifiers.h>
#include <clang/Index/USRGeneration.h>
#include <clang/Lex/Lexer.h>
#include <llvm/ADT/StringExtras.h>
#include <optional>
#include "Types.h"
#include "Decl.h"
#include "Parser.h"
#include "Sources.h"
using namespace CppSharp::CppParser;
using namespace clang;
namespace {
AST::AccessSpecifier ConvertToAccess(clang::AccessSpecifier AS)
{
switch (AS)
{
case clang::AS_private:
return AST::AccessSpecifier::Private;
case clang::AS_protected:
return AST::AccessSpecifier::Protected;
case clang::AS_public:
return AST::AccessSpecifier::Public;
case clang::AS_none:
return AST::AccessSpecifier::Public;
}
llvm_unreachable("Unknown AccessSpecifier");
}
std::string GetDeclUSR(const clang::Decl* D)
{
using namespace clang;
SmallString<128> usr;
if (!index::generateUSRForDecl(D, usr))
return usr.c_str();
return "<invalid>";
}
std::string GetDeclName(const clang::NamedDecl* D)
{
if (const clang::IdentifierInfo* II = D->getIdentifier())
return II->getName().str();
return D->getDeclName().getAsString();
}
AST::TypeQualifiers GetTypeQualifiers(const clang::Qualifiers& quals)
{
AST::TypeQualifiers ret;
ret.isConst = quals.hasConst();
ret.isRestrict = quals.hasRestrict();
ret.isVolatile = quals.hasVolatile();
return ret;
}
CppSharp::CppParser::SourceLocation ConvertSourceLocation(const clang::SourceLocation& loc)
{
// TODO: Incomplete. Should this include additional data or is it possible to lazy load that?
return { loc.getRawEncoding() };
}
CppSharp::CppParser::SourceRange ConvertSourceRange(const clang::SourceRange& range)
{
return {
ConvertSourceLocation(range.getBegin()),
ConvertSourceLocation(range.getEnd())
};
}
} // namespace
void ASTNodeVisitor::ConvertNamedRecord(AST::Declaration& dst, const clang::NamedDecl& src) const
{
if (!src.getDeclName())
return;
dst.name = src.getNameAsString();
dst.mangledName = GetMangledName(src);
}
std::string ASTNodeVisitor::GetMangledName(const clang::NamedDecl& ND) const
{
// Source adapted from https://clang.llvm.org/doxygen/JSONNodeDumper_8cpp_source.html#l00845
// If the declaration is dependent or is in a dependent context, then the
// mangling is unlikely to be meaningful (and in some cases may cause
// "don't know how to mangle this" assertion failures.)
if (ND.isTemplated())
return {};
// FIXME: There are likely other contexts in which it makes no sense to ask
// for a mangled name.
if (isa<RequiresExprBodyDecl>(ND.getDeclContext()))
return {};
// Do not mangle template deduction guides.
if (isa<CXXDeductionGuideDecl>(ND))
return {};
// Mangled names are not meaningful for locals, and may not be well-defined
// in the case of VLAs.
auto* VD = dyn_cast<VarDecl>(&ND);
if (VD && VD->hasLocalStorage())
return {};
return NameMangler.GetName(&ND);
}
void ASTNodeVisitor::addPreviousDeclaration(const Decl* D)
{
switch (D->getKind())
{
#define DECL(DERIVED, BASE) \
case Decl::DERIVED: \
return writePreviousDeclImpl(cast<DERIVED##Decl>(D));
#define ABSTRACT_DECL(DECL)
#include "clang/AST/DeclNodes.inc"
#undef ABSTRACT_DECL
#undef DECL
}
llvm_unreachable("Decl that isn't part of DeclNodes.inc!");
}
void ASTNodeVisitor::Visit(const Attr* A)
{
const char* AttrName = nullptr;
switch (A->getKind())
{
#define ATTR(X) \
case attr::X: \
AttrName = #X "Attr"; \
break;
#include "clang/Basic/AttrList.inc"
#undef ATTR
}
JOS.attribute("id", createPointerRepresentation(A));
JOS.attribute("kind", AttrName);
JOS.attributeObject("range", [A, this]
{
writeSourceRange(A->getRange());
});
attributeOnlyIfTrue("inherited", A->isInherited());
attributeOnlyIfTrue("implicit", A->isImplicit());
// FIXME: it would be useful for us to output the spelling kind as well as
// the actual spelling. This would allow us to distinguish between the
// various attribute syntaxes, but we don't currently track that information
// within the AST.
// JOS.attribute("spelling", A->getSpelling());
InnerAttrVisitor::Visit(A);
}
void ASTNodeVisitor::Visit(const Stmt* S)
{
JOS.attribute("id", createPointerRepresentation(S));
if (!S)
return;
InnerStmtVisitor::Visit(S);
}
void ASTNodeVisitor::Visit(const Type* T)
{
JOS.attribute("id", createPointerRepresentation(T));
if (!T)
return;
if (auto it = typeMap.find(T); it != typeMap.end())
return;
typeMap.emplace(T);
JOS.attribute("kind", (llvm::Twine(T->getTypeClassName()) + "Type").str());
JOS.attribute("type", createQualType(QualType(T, 0), /*Desugar=*/false));
attributeOnlyIfTrue("containsErrors", T->containsErrors());
attributeOnlyIfTrue("isDependent", T->isDependentType());
attributeOnlyIfTrue("isInstantiationDependent",
T->isInstantiationDependentType());
attributeOnlyIfTrue("isVariablyModified", T->isVariablyModifiedType());
attributeOnlyIfTrue("containsUnexpandedPack",
T->containsUnexpandedParameterPack());
attributeOnlyIfTrue("isImported", T->isFromAST());
InnerTypeVisitor::Visit(T);
}
void ASTNodeVisitor::Visit(QualType T)
{
JOS.attribute("id", createPointerRepresentation(T.getAsOpaquePtr()));
JOS.attribute("kind", "QualType");
JOS.attribute("type", createQualType(T));
JOS.attribute("qualifiers", T.split().Quals.getAsString());
}
void ASTNodeVisitor::Visit(TypeLoc TL)
{
if (TL.isNull())
return;
JOS.attribute("kind",
(llvm::Twine(TL.getTypeLocClass() == TypeLoc::Qualified ? "Qualified" : TL.getTypePtr()->getTypeClassName()) +
"TypeLoc")
.str());
JOS.attribute("type",
createQualType(QualType(TL.getType()), /*Desugar=*/false));
JOS.attributeObject("range",
[TL, this]
{
writeSourceRange(TL.getSourceRange());
});
}
AST::Declaration* ASTNodeVisitor::Visit(const Decl* D)
{
JOS.attribute("id", createPointerRepresentation(D));
if (!D)
return nullptr;
if (auto it = declMap.find(D); it != declMap.end())
return it->second;
JOS.attribute("kind", (llvm::Twine(D->getDeclKindName()) + "Decl").str());
JOS.attributeObject("loc",
[D, this]
{
writeSourceLocation(D->getLocation());
});
JOS.attributeObject("range",
[D, this]
{
writeSourceRange(D->getSourceRange());
});
attributeOnlyIfTrue("isImplicit", D->isImplicit());
attributeOnlyIfTrue("isInvalid", D->isInvalidDecl());
if (D->isUsed())
JOS.attribute("isUsed", true);
else if (D->isThisDeclarationReferenced())
JOS.attribute("isReferenced", true);
if (D->getLexicalDeclContext() != D->getDeclContext())
{
// Because of multiple inheritance, a DeclContext pointer does not produce
// the same pointer representation as a Decl pointer that references the
// same AST Node.
const auto* ParentDeclContextDecl = dyn_cast<Decl>(D->getDeclContext());
JOS.attribute("parentDeclContextId",
createPointerRepresentation(ParentDeclContextDecl));
}
addPreviousDeclaration(D);
AST::Declaration* AST_D = InnerDeclVisitor::Visit(D);
if (!AST_D)
return nullptr;
AST_D->originalPtr = (void*)D;
AST_D->kind = (AST::DeclarationKind)D->getKind();
AST_D->location = SourceLocation(D->getLocation().getRawEncoding());
AST_D->isImplicit = D->isImplicit();
AST_D->isInvalid = D->isInvalidDecl();
AST_D->isUsed = D->isUsed();
AST_D->isReferenced = D->isUsed() && D->isThisDeclarationReferenced();
AST_D->USR = GetDeclUSR(D);
AST_D->access = ConvertToAccess(D->getAccess());
return AST_D;
}
void ASTNodeVisitor::Visit(const comments::Comment* C, const comments::FullComment* FC)
{
if (!C)
return;
JOS.attribute("id", createPointerRepresentation(C));
JOS.attribute("kind", C->getCommentKindName());
JOS.attributeObject("loc",
[C, this]
{
writeSourceLocation(C->getLocation());
});
JOS.attributeObject("range",
[C, this]
{
writeSourceRange(C->getSourceRange());
});
InnerCommentVisitor::visit(C, FC);
}
void ASTNodeVisitor::Visit(const TemplateArgument& TA, clang::SourceRange R, const Decl* From, StringRef Label)
{
JOS.attribute("kind", "TemplateArgument");
if (R.isValid())
JOS.attributeObject("range", [R, this]
{
writeSourceRange(R);
});
if (From)
JOS.attribute(Label.empty() ? "fromDecl" : Label, createBareDeclRef(From));
InnerTemplateArgVisitor::Visit(TA);
}
void ASTNodeVisitor::Visit(const CXXCtorInitializer* Init)
{
JOS.attribute("kind", "CXXCtorInitializer");
if (Init->isAnyMemberInitializer())
JOS.attribute("anyInit", createBareDeclRef(Init->getAnyMember()));
else if (Init->isBaseInitializer())
JOS.attribute("baseInit",
createQualType(QualType(Init->getBaseClass(), 0)));
else if (Init->isDelegatingInitializer())
JOS.attribute("delegatingInit",
createQualType(Init->getTypeSourceInfo()->getType()));
else
llvm_unreachable("Unknown initializer type");
}
void ASTNodeVisitor::Visit(const BlockDecl::Capture& C)
{
JOS.attribute("kind", "Capture");
attributeOnlyIfTrue("byref", C.isByRef());
attributeOnlyIfTrue("nested", C.isNested());
if (C.getVariable())
JOS.attribute("var", createBareDeclRef(C.getVariable()));
}
void ASTNodeVisitor::Visit(const GenericSelectionExpr::ConstAssociation& A)
{
JOS.attribute("associationKind", A.getTypeSourceInfo() ? "case" : "default");
attributeOnlyIfTrue("selected", A.isSelected());
}
void ASTNodeVisitor::Visit(const concepts::Requirement* R)
{
if (!R)
return;
switch (R->getKind())
{
case concepts::Requirement::RK_Type:
JOS.attribute("kind", "TypeRequirement");
break;
case concepts::Requirement::RK_Simple:
JOS.attribute("kind", "SimpleRequirement");
break;
case concepts::Requirement::RK_Compound:
JOS.attribute("kind", "CompoundRequirement");
break;
case concepts::Requirement::RK_Nested:
JOS.attribute("kind", "NestedRequirement");
break;
}
if (auto* ER = dyn_cast<concepts::ExprRequirement>(R))
attributeOnlyIfTrue("noexcept", ER->hasNoexceptRequirement());
attributeOnlyIfTrue("isDependent", R->isDependent());
if (!R->isDependent())
JOS.attribute("satisfied", R->isSatisfied());
attributeOnlyIfTrue("containsUnexpandedPack",
R->containsUnexpandedParameterPack());
}
void ASTNodeVisitor::Visit(const APValue& Value, QualType Ty)
{
std::string Str;
llvm::raw_string_ostream OS(Str);
Value.printPretty(OS, Ctx, Ty);
JOS.attribute("value", Str);
}
void ASTNodeVisitor::Visit(const ConceptReference* CR)
{
JOS.attribute("kind", "ConceptReference");
JOS.attribute("id", createPointerRepresentation(CR->getNamedConcept()));
if (const auto* Args = CR->getTemplateArgsAsWritten())
{
JOS.attributeArray("templateArgsAsWritten", [Args, this]
{
for (const TemplateArgumentLoc& TAL : Args->arguments())
JOS.object(
[&TAL, this]
{
Visit(TAL.getArgument(), TAL.getSourceRange());
});
});
}
/*JOS.attributeObject("loc",
[CR, this] { writeSourceLocation(CR->getLocation()); });
JOS.attributeObject("range",
[CR, this] { writeSourceRange(CR->getSourceRange()); });*/
}
void ASTNodeVisitor::writeIncludeStack(PresumedLoc Loc, bool JustFirst)
{
if (Loc.isInvalid())
return;
JOS.attributeBegin("includedFrom");
JOS.objectBegin();
if (!JustFirst)
{
// Walk the stack recursively, then print out the presumed location.
writeIncludeStack(SM.getPresumedLoc(Loc.getIncludeLoc()));
}
JOS.attribute("file", Loc.getFilename());
JOS.objectEnd();
JOS.attributeEnd();
}
void ASTNodeVisitor::writeBareSourceLocation(clang::SourceLocation Loc, bool IsSpelling, bool addFileInfo)
{
PresumedLoc Presumed = SM.getPresumedLoc(Loc);
unsigned ActualLine = IsSpelling ? SM.getSpellingLineNumber(Loc) : SM.getExpansionLineNumber(Loc);
StringRef ActualFile = SM.getBufferName(Loc);
if (!Presumed.isValid())
return;
JOS.attribute("offset", SM.getDecomposedLoc(Loc).second);
if (LastLocFilename != ActualFile)
{
if (addFileInfo)
JOS.attribute("file", ActualFile);
JOS.attribute("line", ActualLine);
}
else if (LastLocLine != ActualLine)
JOS.attribute("line", ActualLine);
StringRef PresumedFile = Presumed.getFilename();
if (PresumedFile != ActualFile && LastLocPresumedFilename != PresumedFile && addFileInfo)
JOS.attribute("presumedFile", PresumedFile);
unsigned PresumedLine = Presumed.getLine();
if (ActualLine != PresumedLine && LastLocPresumedLine != PresumedLine)
JOS.attribute("presumedLine", PresumedLine);
JOS.attribute("col", Presumed.getColumn());
JOS.attribute("tokLen",
Lexer::MeasureTokenLength(Loc, SM, Ctx.getLangOpts()));
LastLocFilename = ActualFile;
LastLocPresumedFilename = PresumedFile;
LastLocPresumedLine = PresumedLine;
LastLocLine = ActualLine;
if (addFileInfo)
{
// Orthogonal to the file, line, and column de-duplication is whether the
// given location was a result of an include. If so, print where the
// include location came from.
writeIncludeStack(SM.getPresumedLoc(Presumed.getIncludeLoc()),
/*JustFirst*/ true);
}
}
void ASTNodeVisitor::writeSourceLocation(clang::SourceLocation Loc, bool addFileInfo)
{
clang::SourceLocation Spelling = SM.getSpellingLoc(Loc);
clang::SourceLocation Expansion = SM.getExpansionLoc(Loc);
if (Expansion != Spelling)
{
// If the expansion and the spelling are different, output subobjects
// describing both locations.
JOS.attributeObject("spellingLoc", [Spelling, addFileInfo, this]
{
writeBareSourceLocation(Spelling, /*IsSpelling*/ true, addFileInfo);
});
JOS.attributeObject("expansionLoc", [Expansion, addFileInfo, Loc, this]
{
writeBareSourceLocation(Expansion, /*IsSpelling*/ false, addFileInfo);
// If there is a macro expansion, add extra information if the interesting
// bit is the macro arg expansion.
if (SM.isMacroArgExpansion(Loc))
JOS.attribute("isMacroArgExpansion", true);
});
}
else
writeBareSourceLocation(Spelling, /*IsSpelling*/ true, addFileInfo);
}
void ASTNodeVisitor::writeSourceRange(clang::SourceRange R)
{
JOS.attributeObject("begin",
[R, this]
{
writeSourceLocation(R.getBegin(), false);
});
JOS.attributeObject("end", [R, this]
{
writeSourceLocation(R.getEnd(), false);
});
}
std::string ASTNodeVisitor::createPointerRepresentation(const void* Ptr)
{
// Because JSON stores integer values as signed 64-bit integers, trying to
// represent them as such makes for very ugly pointer values in the resulting
// output. Instead, we convert the value to hex and treat it as a string.
return "0x" + llvm::utohexstr(reinterpret_cast<uint64_t>(Ptr), true);
}
llvm::json::Object ASTNodeVisitor::createQualType(QualType QT, bool Desugar)
{
SplitQualType SQT = QT.split();
std::string SQTS = QualType::getAsString(SQT, PrintPolicy);
llvm::json::Object Ret{ { "qualType", SQTS } };
if (Desugar && !QT.isNull())
{
SplitQualType DSQT = QT.getSplitDesugaredType();
if (DSQT != SQT)
{
std::string DSQTS = QualType::getAsString(DSQT, PrintPolicy);
if (DSQTS != SQTS)
Ret["desugaredQualType"] = DSQTS;
}
if (const auto* TT = QT->getAs<TypedefType>())
Ret["typeAliasDeclId"] = createPointerRepresentation(TT->getDecl());
}
return Ret;
}
AST::QualifiedType ASTNodeVisitor::CreateQualifiedType(QualType QT, bool Desugar)
{
if (QT.isNull())
return {};
SplitQualType SQT = QT.split();
AST::QualifiedType Ret;
Ret.qualifiers = GetTypeQualifiers(SQT.Quals);
// Ret.type = Visit(SQT.Ty); // TODO: Implement Visit
if (Desugar)
{
SplitQualType DSQT = QT.getSplitDesugaredType();
if (DSQT != SQT)
{
// Ret.desugaredType = Visit(DSQT.Ty);
}
if (const auto* TT = QT->getAs<TypedefType>())
Ret.typeAliasDeclId = (void*)TT->getDecl();
}
return Ret;
}
void ASTNodeVisitor::writeBareDeclRef(const Decl* D)
{
JOS.attribute("id", createPointerRepresentation(D));
if (!D)
return;
JOS.attribute("kind", (llvm::Twine(D->getDeclKindName()) + "Decl").str());
if (const auto* ND = dyn_cast<NamedDecl>(D))
JOS.attribute("name", ND->getDeclName().getAsString());
if (const auto* VD = dyn_cast<ValueDecl>(D))
JOS.attribute("type", createQualType(VD->getType()));
}
llvm::json::Object ASTNodeVisitor::createBareDeclRef(const Decl* D)
{
llvm::json::Object Ret{ { "id", createPointerRepresentation(D) } };
if (!D)
return Ret;
Ret["kind"] = (llvm::Twine(D->getDeclKindName()) + "Decl").str();
if (const auto* ND = dyn_cast<NamedDecl>(D))
Ret["name"] = ND->getDeclName().getAsString();
if (const auto* VD = dyn_cast<ValueDecl>(D))
Ret["type"] = createQualType(VD->getType());
return Ret;
}
llvm::json::Array ASTNodeVisitor::createCastPath(const CastExpr* C)
{
llvm::json::Array Ret;
if (C->path_empty())
return Ret;
for (auto I = C->path_begin(), E = C->path_end(); I != E; ++I)
{
const CXXBaseSpecifier* Base = *I;
const auto* RD =
cast<CXXRecordDecl>(Base->getType()->castAs<RecordType>()->getDecl());
llvm::json::Object Val{ { "name", RD->getName() } };
if (Base->isVirtual())
Val["isVirtual"] = true;
Ret.push_back(std::move(Val));
}
return Ret;
}
#define FIELD2(Name, Flag) \
if (RD->Flag()) \
Ret[Name] = true
#define FIELD1(Flag) FIELD2(#Flag, Flag)
static llvm::json::Object createDefaultConstructorDefinitionData(const CXXRecordDecl* RD)
{
llvm::json::Object Ret;
FIELD2("exists", hasDefaultConstructor);
FIELD2("trivial", hasTrivialDefaultConstructor);
FIELD2("nonTrivial", hasNonTrivialDefaultConstructor);
FIELD2("userProvided", hasUserProvidedDefaultConstructor);
FIELD2("isConstexpr", hasConstexprDefaultConstructor);
FIELD2("needsImplicit", needsImplicitDefaultConstructor);
FIELD2("defaultedIsConstexpr", defaultedDefaultConstructorIsConstexpr);
return Ret;
}
static llvm::json::Object createCopyConstructorDefinitionData(const CXXRecordDecl* RD)
{
llvm::json::Object Ret;
FIELD2("simple", hasSimpleCopyConstructor);
FIELD2("trivial", hasTrivialCopyConstructor);
FIELD2("nonTrivial", hasNonTrivialCopyConstructor);
FIELD2("userDeclared", hasUserDeclaredCopyConstructor);
FIELD2("hasConstParam", hasCopyConstructorWithConstParam);
FIELD2("implicitHasConstParam", implicitCopyConstructorHasConstParam);
FIELD2("needsImplicit", needsImplicitCopyConstructor);
FIELD2("needsOverloadResolution", needsOverloadResolutionForCopyConstructor);
if (!RD->needsOverloadResolutionForCopyConstructor())
FIELD2("defaultedIsDeleted", defaultedCopyConstructorIsDeleted);
return Ret;
}
static llvm::json::Object createMoveConstructorDefinitionData(const CXXRecordDecl* RD)
{
llvm::json::Object Ret;
FIELD2("exists", hasMoveConstructor);
FIELD2("simple", hasSimpleMoveConstructor);
FIELD2("trivial", hasTrivialMoveConstructor);
FIELD2("nonTrivial", hasNonTrivialMoveConstructor);
FIELD2("userDeclared", hasUserDeclaredMoveConstructor);
FIELD2("needsImplicit", needsImplicitMoveConstructor);
FIELD2("needsOverloadResolution", needsOverloadResolutionForMoveConstructor);
if (!RD->needsOverloadResolutionForMoveConstructor())
FIELD2("defaultedIsDeleted", defaultedMoveConstructorIsDeleted);
return Ret;
}
static llvm::json::Object createCopyAssignmentDefinitionData(const CXXRecordDecl* RD)
{
llvm::json::Object Ret;
FIELD2("simple", hasSimpleCopyAssignment);
FIELD2("trivial", hasTrivialCopyAssignment);
FIELD2("nonTrivial", hasNonTrivialCopyAssignment);
FIELD2("hasConstParam", hasCopyAssignmentWithConstParam);
FIELD2("implicitHasConstParam", implicitCopyAssignmentHasConstParam);
FIELD2("userDeclared", hasUserDeclaredCopyAssignment);
FIELD2("needsImplicit", needsImplicitCopyAssignment);
FIELD2("needsOverloadResolution", needsOverloadResolutionForCopyAssignment);
return Ret;
}
static llvm::json::Object createMoveAssignmentDefinitionData(const CXXRecordDecl* RD)
{
llvm::json::Object Ret;
FIELD2("exists", hasMoveAssignment);
FIELD2("simple", hasSimpleMoveAssignment);
FIELD2("trivial", hasTrivialMoveAssignment);
FIELD2("nonTrivial", hasNonTrivialMoveAssignment);
FIELD2("userDeclared", hasUserDeclaredMoveAssignment);
FIELD2("needsImplicit", needsImplicitMoveAssignment);
FIELD2("needsOverloadResolution", needsOverloadResolutionForMoveAssignment);
return Ret;
}
static llvm::json::Object createDestructorDefinitionData(const CXXRecordDecl* RD)
{
llvm::json::Object Ret;
FIELD2("simple", hasSimpleDestructor);
FIELD2("irrelevant", hasIrrelevantDestructor);
FIELD2("trivial", hasTrivialDestructor);
FIELD2("nonTrivial", hasNonTrivialDestructor);
FIELD2("userDeclared", hasUserDeclaredDestructor);
FIELD2("needsImplicit", needsImplicitDestructor);
FIELD2("needsOverloadResolution", needsOverloadResolutionForDestructor);
if (!RD->needsOverloadResolutionForDestructor())
FIELD2("defaultedIsDeleted", defaultedDestructorIsDeleted);
return Ret;
}
llvm::json::Object ASTNodeVisitor::createCXXRecordDefinitionData(const CXXRecordDecl* RD)
{
llvm::json::Object Ret;
// This data is common to all C++ classes.
FIELD1(isGenericLambda);
FIELD1(isLambda);
FIELD1(isEmpty);
FIELD1(isAggregate);
FIELD1(isStandardLayout);
FIELD1(isTriviallyCopyable);
FIELD1(isPOD);
FIELD1(isTrivial);
FIELD1(isPolymorphic);
FIELD1(isAbstract);
FIELD1(isLiteral);
FIELD1(canPassInRegisters);
FIELD1(hasUserDeclaredConstructor);
FIELD1(hasConstexprNonCopyMoveConstructor);
FIELD1(hasMutableFields);
FIELD1(hasVariantMembers);
FIELD2("canConstDefaultInit", allowConstDefaultInit);
Ret["defaultCtor"] = createDefaultConstructorDefinitionData(RD);
Ret["copyCtor"] = createCopyConstructorDefinitionData(RD);
Ret["moveCtor"] = createMoveConstructorDefinitionData(RD);
Ret["copyAssign"] = createCopyAssignmentDefinitionData(RD);
Ret["moveAssign"] = createMoveAssignmentDefinitionData(RD);
Ret["dtor"] = createDestructorDefinitionData(RD);
return Ret;
}
#undef FIELD1
#undef FIELD2
std::string ASTNodeVisitor::createAccessSpecifier(AccessSpecifier AS)
{
const auto AccessSpelling = getAccessSpelling(AS);
if (AccessSpelling.empty())
return "none";
return AccessSpelling.str();
}
llvm::json::Object ASTNodeVisitor::createCXXBaseSpecifier(const CXXBaseSpecifier& BS)
{
llvm::json::Object Ret;
Ret["type"] = createQualType(BS.getType());
Ret["access"] = createAccessSpecifier(BS.getAccessSpecifier());
Ret["writtenAccess"] =
createAccessSpecifier(BS.getAccessSpecifierAsWritten());
if (BS.isVirtual())
Ret["isVirtual"] = true;
if (BS.isPackExpansion())
Ret["isPackExpansion"] = true;
return Ret;
}
void ASTNodeVisitor::VisitAliasAttr(const AliasAttr* AA)
{
JOS.attribute("aliasee", AA->getAliasee());
}
void ASTNodeVisitor::VisitCleanupAttr(const CleanupAttr* CA)
{
JOS.attribute("cleanup_function", createBareDeclRef(CA->getFunctionDecl()));
}
void ASTNodeVisitor::VisitDeprecatedAttr(const DeprecatedAttr* DA)
{
if (!DA->getMessage().empty())
JOS.attribute("message", DA->getMessage());
if (!DA->getReplacement().empty())
JOS.attribute("replacement", DA->getReplacement());
}
void ASTNodeVisitor::VisitUnavailableAttr(const UnavailableAttr* UA)
{
if (!UA->getMessage().empty())
JOS.attribute("message", UA->getMessage());
}
void ASTNodeVisitor::VisitSectionAttr(const SectionAttr* SA)
{
JOS.attribute("section_name", SA->getName());
}
void ASTNodeVisitor::VisitVisibilityAttr(const VisibilityAttr* VA)
{
JOS.attribute("visibility", VisibilityAttr::ConvertVisibilityTypeToStr(
VA->getVisibility()));
}
void ASTNodeVisitor::VisitTLSModelAttr(const TLSModelAttr* TA)
{
JOS.attribute("tls_model", TA->getModel());
}
void ASTNodeVisitor::VisitTypedefType(const TypedefType* TT)
{
JOS.attribute("decl", createBareDeclRef(TT->getDecl()));
if (!TT->typeMatchesDecl())
JOS.attribute("type", createQualType(TT->desugar()));
}
void ASTNodeVisitor::VisitUsingType(const UsingType* TT)
{
JOS.attribute("decl", createBareDeclRef(TT->getFoundDecl()));
if (!TT->typeMatchesDecl())
JOS.attribute("type", createQualType(TT->desugar()));
}
void ASTNodeVisitor::VisitFunctionType(const FunctionType* T)
{
FunctionType::ExtInfo E = T->getExtInfo();
attributeOnlyIfTrue("noreturn", E.getNoReturn());
attributeOnlyIfTrue("producesResult", E.getProducesResult());
if (E.getHasRegParm())
JOS.attribute("regParm", E.getRegParm());
JOS.attribute("cc", FunctionType::getNameForCallConv(E.getCC()));
}
void ASTNodeVisitor::VisitFunctionProtoType(const FunctionProtoType* T)
{
FunctionProtoType::ExtProtoInfo E = T->getExtProtoInfo();
attributeOnlyIfTrue("trailingReturn", E.HasTrailingReturn);
attributeOnlyIfTrue("const", T->isConst());
attributeOnlyIfTrue("volatile", T->isVolatile());
attributeOnlyIfTrue("restrict", T->isRestrict());
attributeOnlyIfTrue("variadic", E.Variadic);
switch (E.RefQualifier)
{
case RQ_LValue: JOS.attribute("refQualifier", "&"); break;
case RQ_RValue: JOS.attribute("refQualifier", "&&"); break;
case RQ_None: break;
}
switch (E.ExceptionSpec.Type)
{
case EST_DynamicNone:
case EST_Dynamic:
{
JOS.attribute("exceptionSpec", "throw");
llvm::json::Array Types;
for (QualType QT : E.ExceptionSpec.Exceptions)
Types.push_back(createQualType(QT));
JOS.attribute("exceptionTypes", std::move(Types));
}
break;
case EST_MSAny:
JOS.attribute("exceptionSpec", "throw");
JOS.attribute("throwsAny", true);
break;
case EST_BasicNoexcept:
JOS.attribute("exceptionSpec", "noexcept");
break;
case EST_NoexceptTrue:
case EST_NoexceptFalse:
JOS.attribute("exceptionSpec", "noexcept");
JOS.attribute("conditionEvaluatesTo",
E.ExceptionSpec.Type == EST_NoexceptTrue);
// JOS.attributeWithCall("exceptionSpecExpr",
// [this, E]() { Visit(E.ExceptionSpec.NoexceptExpr); });
break;
case EST_NoThrow:
JOS.attribute("exceptionSpec", "nothrow");
break;
// FIXME: I cannot find a way to trigger these cases while dumping the AST. I
// suspect you can only run into them when executing an AST dump from within
// the debugger, which is not a use case we worry about for the JSON dumping
// feature.
case EST_DependentNoexcept:
case EST_Unevaluated:
case EST_Uninstantiated:
case EST_Unparsed:
case EST_None: break;
}
VisitFunctionType(T);
}
void ASTNodeVisitor::VisitRValueReferenceType(const ReferenceType* RT)
{
attributeOnlyIfTrue("spelledAsLValue", RT->isSpelledAsLValue());
}
void ASTNodeVisitor::VisitArrayType(const ArrayType* AT)
{
switch (AT->getSizeModifier())
{
case ArrayType::ArraySizeModifier::Star:
JOS.attribute("sizeModifier", "*");
break;
case ArrayType::ArraySizeModifier::Static:
JOS.attribute("sizeModifier", "static");
break;
case ArrayType::ArraySizeModifier::Normal:
break;
}
std::string Str = AT->getIndexTypeQualifiers().getAsString();
if (!Str.empty())
JOS.attribute("indexTypeQualifiers", Str);
}
void ASTNodeVisitor::VisitConstantArrayType(const ConstantArrayType* CAT)
{
// FIXME: this should use ZExt instead of SExt, but JSON doesn't allow a
// narrowing conversion to int64_t so it cannot be expressed.
JOS.attribute("size", CAT->getSize().getSExtValue());
VisitArrayType(CAT);
}
void ASTNodeVisitor::VisitDependentSizedExtVectorType(
const DependentSizedExtVectorType* VT)
{
JOS.attributeObject(
"attrLoc", [VT, this]
{
writeSourceLocation(VT->getAttributeLoc());
});
}
void ASTNodeVisitor::VisitVectorType(const VectorType* VT)
{
JOS.attribute("numElements", VT->getNumElements());
switch (VT->getVectorKind())
{
case VectorType::VectorKind::GenericVector:
break;
case VectorType::VectorKind::AltiVecVector:
JOS.attribute("vectorKind", "altivec");
break;
case VectorType::VectorKind::AltiVecPixel:
JOS.attribute("vectorKind", "altivec pixel");
break;
case VectorType::VectorKind::AltiVecBool:
JOS.attribute("vectorKind", "altivec bool");
break;
case VectorType::VectorKind::NeonVector:
JOS.attribute("vectorKind", "neon");
break;
case VectorType::VectorKind::NeonPolyVector:
JOS.attribute("vectorKind", "neon poly");
break;
case VectorType::VectorKind::SveFixedLengthDataVector:
JOS.attribute("vectorKind", "fixed-length sve data vector");
break;
case VectorType::VectorKind::SveFixedLengthPredicateVector:
JOS.attribute("vectorKind", "fixed-length sve predicate vector");
break;
case VectorType::VectorKind::RVVFixedLengthDataVector:
JOS.attribute("vectorKind", "fixed-length rvv data vector");
break;
/*case VectorType::VectorKind::RVVFixedLengthMask:
case VectorType::VectorKind::RVVFixedLengthMask_1:
case VectorType::VectorKind::RVVFixedLengthMask_2:
case VectorType::VectorKind::RVVFixedLengthMask_4:
JOS.attribute("vectorKind", "fixed-length rvv mask vector");
break;*/
}
}
void ASTNodeVisitor::VisitUnresolvedUsingType(const UnresolvedUsingType* UUT)
{
JOS.attribute("decl", createBareDeclRef(UUT->getDecl()));
}
void ASTNodeVisitor::VisitUnaryTransformType(const UnaryTransformType* UTT)
{
switch (UTT->getUTTKind())
{
#define TRANSFORM_TYPE_TRAIT_DEF(Enum, Trait) \
case UnaryTransformType::Enum: \
JOS.attribute("transformKind", #Trait); \
break;
#include "clang/Basic/TransformTypeTraits.def"
}