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JSONNodeDumper.cpp
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#include "clang/AST/JSONNodeDumper.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/Specifiers.h"
#include "clang/Lex/Lexer.h"
#include "llvm/ADT/StringSwitch.h"
using namespace clang;
void JSONNodeDumper::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 JSONNodeDumper::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 JSONNodeDumper::Visit(const Stmt *S) {
if (!S)
return;
JOS.attribute("id", createPointerRepresentation(S));
JOS.attribute("kind", S->getStmtClassName());
JOS.attributeObject("range",
[S, this] { writeSourceRange(S->getSourceRange()); });
if (const auto *E = dyn_cast<Expr>(S)) {
JOS.attribute("type", createQualType(E->getType()));
const char *Category = nullptr;
switch (E->getValueKind()) {
case VK_LValue: Category = "lvalue"; break;
case VK_XValue: Category = "xvalue"; break;
case VK_PRValue:
Category = "prvalue";
break;
}
JOS.attribute("valueCategory", Category);
}
InnerStmtVisitor::Visit(S);
}
void JSONNodeDumper::Visit(const Type *T) {
// SEI: ensure FPTs are debloated. this can be expanded to ALL types, if desired
if (T && cacheAddress((void*)T)) {
// add this as a child to know that it's a Type
AddChild( "typeDetails",
[=] { JOS.attribute("refId", createPointerRepresentation(T)); });
InnerTypeVisitor::Visit(T);
// SEI
VisitQualTypeDetails(T->getCanonicalTypeInternal());
return;
}
JOS.attribute("id", createPointerRepresentation(T));
if (!T)
return;
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);
// SEI
VisitQualTypeDetails(T->getCanonicalTypeInternal());
}
void JSONNodeDumper::Visit(QualType T) {
// SEI: used AddChild to prevent qualType from being part added to a list
//JOS.attributeArray("qualTypes", [=] {
// SEI: force qualType into its own block, otherwise multiple Visits
// create a bunch of siblings, which is invalid JSON
JOS.attributeBegin("qualType");
JOS.objectBegin();
// SEI: cache visited addresses and add only its refId
// instead of the kind, type, quals, but leave the qual type details
// because those can differ among IDs
if (cacheAddress(T.getAsOpaquePtr())) {
JOS.attribute("refId", createPointerRepresentation(T.getAsOpaquePtr()));
}
else {
JOS.attribute("id", createPointerRepresentation(T.getAsOpaquePtr()));
JOS.attribute("kind", "QualType");
JOS.attribute("type", createQualType(T));
JOS.attribute("qualifiers", T.split().Quals.getAsString());
}
// SEI: get add'l info required for redemption analysis
// the qual type details differ even among cached references
VisitQualTypeDetails(T);
// SEI: if this is a pointer type, then recursively call ourselves
// until it's not
if (T->isPointerType())
Visit(T->getPointeeType());
JOS.objectEnd();
JOS.attributeEnd();
//} );
}
void JSONNodeDumper::VisitQualTypeDetails(QualType T) {
// SEI: get more detailed info on type. this info is not transferrable
// with the refId, so this must be called on every type even if that type
// has been cached
JOS.attributeBegin("qualDetails");
JOS.arrayBegin();
auto CT = T->getCanonicalTypeInternal();
if (CT->isStructureType()) JOS.value("struct");
if (CT->isNullPtrType()) JOS.value("null");
if (CT->isPromotableIntegerType()) JOS.value("promotable");
if (CT->isUndeducedType()) JOS.value("undeduced");
if (CT->isPointerType()) JOS.value("ptr");
if (CT->isVoidType()) JOS.value("void");
if (CT->isSignedIntegerType()) JOS.value("signed");
if (CT->isUnsignedIntegerType()) JOS.value("unsigned");
if (CT->isIntegerType()) JOS.value("integer");
if (CT->isFloatingType()) JOS.value("fpp");
if (CT->isEnumeralType()) JOS.value("enum");
if (CT->isUnionType()) JOS.value("union");
if (CT->isFunctionPointerType()) JOS.value("func_ptr");
if (CT->isTypedefNameType()) JOS.value("type_def");
if (CT->isArrayType()) JOS.value("array");
JOS.arrayEnd();
JOS.attributeEnd();
}
// SEI: capture the return info in a nested JSON block
void JSONNodeDumper::VisitReturnType(QualType T) {
// using this function allows us to easily wrap just the returnType
// section into its own JSON block. if we do this in ASTNodeTraverser,
// then the TextNodeDumper works as expected but the JSONNodeDumper
// rolls all siblings into the returnType node with those siblings as child nodes
JOS.attributeObject("returnTypeDetail", [=] {
Visit(T);
});
//Visit(T);
}
void JSONNodeDumper::Visit(const Decl *D) {
JOS.attribute("id", createPointerRepresentation(D));
if (!D)
return;
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 (const auto *ND = dyn_cast<NamedDecl>(D))
attributeOnlyIfTrue("isHidden", !ND->isUnconditionallyVisible());
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);
InnerDeclVisitor::Visit(D);
}
void JSONNodeDumper::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 JSONNodeDumper::Visit(const TemplateArgument &TA, 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 JSONNodeDumper::Visit(const CXXCtorInitializer *Init) {
JOS.attribute("kind", "CXXCtorInitializer");
// SEI: added id for
JOS.attribute("id", createPointerRepresentation(Init));
// SEI: added range for CXXCtorInitializers
JOS.attributeObject("range",
[Init, this] { writeSourceRange(Init->getSourceRange()); });
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 JSONNodeDumper::Visit(const OMPClause *C) {}
void JSONNodeDumper::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 JSONNodeDumper::Visit(const GenericSelectionExpr::ConstAssociation &A) {
JOS.attribute("associationKind", A.getTypeSourceInfo() ? "case" : "default");
attributeOnlyIfTrue("selected", A.isSelected());
}
void JSONNodeDumper::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 JSONNodeDumper::Visit(const APValue &Value, QualType Ty) {
std::string Str;
llvm::raw_string_ostream OS(Str);
Value.printPretty(OS, Ctx, Ty);
JOS.attribute("value", OS.str());
}
void JSONNodeDumper::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 JSONNodeDumper::writeBareSourceLocation(SourceLocation Loc,
bool IsSpelling) {
PresumedLoc Presumed = SM.getPresumedLoc(Loc);
unsigned ActualLine = IsSpelling ? SM.getSpellingLineNumber(Loc)
: SM.getExpansionLineNumber(Loc);
StringRef ActualFile = SM.getBufferName(Loc);
if (Presumed.isValid()) {
JOS.attribute("offset", SM.getDecomposedLoc(Loc).second);
if (LastLocFilename != ActualFile) {
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)
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;
// 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 JSONNodeDumper::writeSourceLocation(SourceLocation Loc) {
SourceLocation Spelling = SM.getSpellingLoc(Loc);
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, this] {
writeBareSourceLocation(Spelling, /*IsSpelling*/ true);
});
JOS.attributeObject("expansionLoc", [Expansion, Loc, this] {
writeBareSourceLocation(Expansion, /*IsSpelling*/ false);
// 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);
}
void JSONNodeDumper::writeSourceRange(SourceRange R) {
JOS.attributeObject("begin",
[R, this] { writeSourceLocation(R.getBegin()); });
JOS.attributeObject("end", [R, this] { writeSourceLocation(R.getEnd()); });
}
std::string JSONNodeDumper::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 JSONNodeDumper::createQualType(QualType QT, bool Desugar) {
SplitQualType SQT = QT.split();
llvm::json::Object Ret{{"qualType", QualType::getAsString(SQT, PrintPolicy)}};
if (Desugar && !QT.isNull()) {
SplitQualType DSQT = QT.getSplitDesugaredType();
if (DSQT != SQT)
Ret["desugaredQualType"] = QualType::getAsString(DSQT, PrintPolicy);
if (const auto *TT = QT->getAs<TypedefType>())
Ret["typeAliasDeclId"] = createPointerRepresentation(TT->getDecl());
}
return Ret;
}
void JSONNodeDumper::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 JSONNodeDumper::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 JSONNodeDumper::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
JSONNodeDumper::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 JSONNodeDumper::createAccessSpecifier(AccessSpecifier AS) {
const auto AccessSpelling = getAccessSpelling(AS);
if (AccessSpelling.empty())
return "none";
return AccessSpelling.str();
}
llvm::json::Object
JSONNodeDumper::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 JSONNodeDumper::VisitTypedefType(const TypedefType *TT) {
JOS.attribute("decl", createBareDeclRef(TT->getDecl()));
}
void JSONNodeDumper::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 JSONNodeDumper::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 JSONNodeDumper::VisitRValueReferenceType(const ReferenceType *RT) {
attributeOnlyIfTrue("spelledAsLValue", RT->isSpelledAsLValue());
}
void JSONNodeDumper::VisitArrayType(const ArrayType *AT) {
switch (AT->getSizeModifier()) {
case ArrayType::Star:
JOS.attribute("sizeModifier", "*");
break;
case ArrayType::Static:
JOS.attribute("sizeModifier", "static");
break;
case ArrayType::Normal:
break;
}
std::string Str = AT->getIndexTypeQualifiers().getAsString();
if (!Str.empty())
JOS.attribute("indexTypeQualifiers", Str);
}
void JSONNodeDumper::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 JSONNodeDumper::VisitDependentSizedExtVectorType(
const DependentSizedExtVectorType *VT) {
JOS.attributeObject(
"attrLoc", [VT, this] { writeSourceLocation(VT->getAttributeLoc()); });
}
void JSONNodeDumper::VisitVectorType(const VectorType *VT) {
JOS.attribute("numElements", VT->getNumElements());
switch (VT->getVectorKind()) {
case VectorType::GenericVector:
break;
case VectorType::AltiVecVector:
JOS.attribute("vectorKind", "altivec");
break;
case VectorType::AltiVecPixel:
JOS.attribute("vectorKind", "altivec pixel");
break;
case VectorType::AltiVecBool:
JOS.attribute("vectorKind", "altivec bool");
break;
case VectorType::NeonVector:
JOS.attribute("vectorKind", "neon");
break;
case VectorType::NeonPolyVector:
JOS.attribute("vectorKind", "neon poly");
break;
case VectorType::SveFixedLengthDataVector:
JOS.attribute("vectorKind", "fixed-length sve data vector");
break;
case VectorType::SveFixedLengthPredicateVector:
JOS.attribute("vectorKind", "fixed-length sve predicate vector");
break;
}
}
void JSONNodeDumper::VisitUnresolvedUsingType(const UnresolvedUsingType *UUT) {
JOS.attribute("decl", createBareDeclRef(UUT->getDecl()));
}
void JSONNodeDumper::VisitUnaryTransformType(const UnaryTransformType *UTT) {
switch (UTT->getUTTKind()) {
case UnaryTransformType::EnumUnderlyingType:
JOS.attribute("transformKind", "underlying_type");
break;
}
}
void JSONNodeDumper::VisitTagType(const TagType *TT) {
JOS.attribute("decl", createBareDeclRef(TT->getDecl()));
}
void JSONNodeDumper::VisitTemplateTypeParmType(
const TemplateTypeParmType *TTPT) {
JOS.attribute("depth", TTPT->getDepth());
JOS.attribute("index", TTPT->getIndex());
attributeOnlyIfTrue("isPack", TTPT->isParameterPack());
JOS.attribute("decl", createBareDeclRef(TTPT->getDecl()));
}
void JSONNodeDumper::VisitAutoType(const AutoType *AT) {
JOS.attribute("undeduced", !AT->isDeduced());
switch (AT->getKeyword()) {
case AutoTypeKeyword::Auto:
JOS.attribute("typeKeyword", "auto");
break;
case AutoTypeKeyword::DecltypeAuto:
JOS.attribute("typeKeyword", "decltype(auto)");
break;
case AutoTypeKeyword::GNUAutoType:
JOS.attribute("typeKeyword", "__auto_type");
break;
}
}
void JSONNodeDumper::VisitTemplateSpecializationType(
const TemplateSpecializationType *TST) {
attributeOnlyIfTrue("isAlias", TST->isTypeAlias());
std::string Str;
llvm::raw_string_ostream OS(Str);
TST->getTemplateName().print(OS, PrintPolicy);
JOS.attribute("templateName", OS.str());
}
void JSONNodeDumper::VisitInjectedClassNameType(
const InjectedClassNameType *ICNT) {
JOS.attribute("decl", createBareDeclRef(ICNT->getDecl()));
}
void JSONNodeDumper::VisitObjCInterfaceType(const ObjCInterfaceType *OIT) {
JOS.attribute("decl", createBareDeclRef(OIT->getDecl()));
}
void JSONNodeDumper::VisitPackExpansionType(const PackExpansionType *PET) {
if (llvm::Optional<unsigned> N = PET->getNumExpansions())
JOS.attribute("numExpansions", *N);
}
void JSONNodeDumper::VisitElaboratedType(const ElaboratedType *ET) {
if (const NestedNameSpecifier *NNS = ET->getQualifier()) {
std::string Str;
llvm::raw_string_ostream OS(Str);
NNS->print(OS, PrintPolicy, /*ResolveTemplateArgs*/ true);
JOS.attribute("qualifier", OS.str());
}
if (const TagDecl *TD = ET->getOwnedTagDecl())
JOS.attribute("ownedTagDecl", createBareDeclRef(TD));
}
void JSONNodeDumper::VisitMacroQualifiedType(const MacroQualifiedType *MQT) {
JOS.attribute("macroName", MQT->getMacroIdentifier()->getName());
}
void JSONNodeDumper::VisitMemberPointerType(const MemberPointerType *MPT) {
attributeOnlyIfTrue("isData", MPT->isMemberDataPointer());
attributeOnlyIfTrue("isFunction", MPT->isMemberFunctionPointer());
}
void JSONNodeDumper::VisitNamedDecl(const NamedDecl *ND) {
if (ND && ND->getDeclName()) {
JOS.attribute("name", ND->getNameAsString());
// FIXME: There are likely other contexts in which it makes no sense to ask
// for a mangled name.
if (isa<RequiresExprBodyDecl>(ND->getDeclContext()))
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;
std::string MangledName = ASTNameGen.getName(ND);
if (!MangledName.empty())
JOS.attribute("mangledName", MangledName);
}
}
void JSONNodeDumper::VisitTypedefDecl(const TypedefDecl *TD) {
VisitNamedDecl(TD);
JOS.attribute("type", createQualType(TD->getUnderlyingType()));
}
void JSONNodeDumper::VisitTypeAliasDecl(const TypeAliasDecl *TAD) {
VisitNamedDecl(TAD);
JOS.attribute("type", createQualType(TAD->getUnderlyingType()));
}
void JSONNodeDumper::VisitNamespaceDecl(const NamespaceDecl *ND) {
VisitNamedDecl(ND);
attributeOnlyIfTrue("isInline", ND->isInline());
if (!ND->isOriginalNamespace())
JOS.attribute("originalNamespace",
createBareDeclRef(ND->getOriginalNamespace()));
}
void JSONNodeDumper::VisitUsingDirectiveDecl(const UsingDirectiveDecl *UDD) {
JOS.attribute("nominatedNamespace",
createBareDeclRef(UDD->getNominatedNamespace()));
}
void JSONNodeDumper::VisitNamespaceAliasDecl(const NamespaceAliasDecl *NAD) {
VisitNamedDecl(NAD);
JOS.attribute("aliasedNamespace",
createBareDeclRef(NAD->getAliasedNamespace()));
}
void JSONNodeDumper::VisitUsingDecl(const UsingDecl *UD) {
std::string Name;
if (const NestedNameSpecifier *NNS = UD->getQualifier()) {
llvm::raw_string_ostream SOS(Name);
NNS->print(SOS, UD->getASTContext().getPrintingPolicy());
}
Name += UD->getNameAsString();
JOS.attribute("name", Name);
}
void JSONNodeDumper::VisitUsingEnumDecl(const UsingEnumDecl *UED) {
JOS.attribute("target", createBareDeclRef(UED->getEnumDecl()));
}
void JSONNodeDumper::VisitUsingShadowDecl(const UsingShadowDecl *USD) {
JOS.attribute("target", createBareDeclRef(USD->getTargetDecl()));
}
void JSONNodeDumper::VisitVarDecl(const VarDecl *VD) {
VisitNamedDecl(VD);
JOS.attribute("type", createQualType(VD->getType()));
StorageClass SC = VD->getStorageClass();
if (SC != SC_None)
JOS.attribute("storageClass", VarDecl::getStorageClassSpecifierString(SC));
switch (VD->getTLSKind()) {
case VarDecl::TLS_Dynamic: JOS.attribute("tls", "dynamic"); break;
case VarDecl::TLS_Static: JOS.attribute("tls", "static"); break;
case VarDecl::TLS_None: break;
}
attributeOnlyIfTrue("nrvo", VD->isNRVOVariable());
attributeOnlyIfTrue("inline", VD->isInline());
attributeOnlyIfTrue("constexpr", VD->isConstexpr());
attributeOnlyIfTrue("modulePrivate", VD->isModulePrivate());
if (VD->hasInit()) {
switch (VD->getInitStyle()) {
case VarDecl::CInit: JOS.attribute("init", "c"); break;
case VarDecl::CallInit: JOS.attribute("init", "call"); break;
case VarDecl::ListInit: JOS.attribute("init", "list"); break;
}
}
attributeOnlyIfTrue("isParameterPack", VD->isParameterPack());
}
void JSONNodeDumper::VisitFieldDecl(const FieldDecl *FD) {
VisitNamedDecl(FD);
JOS.attribute("type", createQualType(FD->getType()));
attributeOnlyIfTrue("mutable", FD->isMutable());
attributeOnlyIfTrue("modulePrivate", FD->isModulePrivate());
attributeOnlyIfTrue("isBitfield", FD->isBitField());
attributeOnlyIfTrue("hasInClassInitializer", FD->hasInClassInitializer());
// SEI: had to add this in b/c FieldDecls do not seem to call
// Visit(QualType)
Visit(FD->getType());
}
void JSONNodeDumper::VisitFunctionDecl(const FunctionDecl *FD) {
VisitNamedDecl(FD);
JOS.attribute("type", createQualType(FD->getType()));
StorageClass SC = FD->getStorageClass();
if (SC != SC_None)
JOS.attribute("storageClass", VarDecl::getStorageClassSpecifierString(SC));
attributeOnlyIfTrue("inline", FD->isInlineSpecified());
attributeOnlyIfTrue("virtual", FD->isVirtualAsWritten());
attributeOnlyIfTrue("pure", FD->isPure());
attributeOnlyIfTrue("explicitlyDeleted", FD->isDeletedAsWritten());
attributeOnlyIfTrue("constexpr", FD->isConstexpr());
attributeOnlyIfTrue("variadic", FD->isVariadic());
if (FD->isDefaulted())
JOS.attribute("explicitlyDefaulted",
FD->isDeleted() ? "deleted" : "default");
}
void JSONNodeDumper::VisitEnumDecl(const EnumDecl *ED) {
VisitNamedDecl(ED);
if (ED->isFixed())
JOS.attribute("fixedUnderlyingType", createQualType(ED->getIntegerType()));
if (ED->isScoped())
JOS.attribute("scopedEnumTag",
ED->isScopedUsingClassTag() ? "class" : "struct");
}
void JSONNodeDumper::VisitEnumConstantDecl(const EnumConstantDecl *ECD) {
VisitNamedDecl(ECD);
JOS.attribute("type", createQualType(ECD->getType()));
}
void JSONNodeDumper::VisitRecordDecl(const RecordDecl *RD) {
VisitNamedDecl(RD);
JOS.attribute("tagUsed", RD->getKindName());
attributeOnlyIfTrue("completeDefinition", RD->isCompleteDefinition());
}
void JSONNodeDumper::VisitCXXRecordDecl(const CXXRecordDecl *RD) {
VisitRecordDecl(RD);
// All other information requires a complete definition.
if (!RD->isCompleteDefinition())
return;
JOS.attribute("definitionData", createCXXRecordDefinitionData(RD));
if (RD->getNumBases()) {
JOS.attributeArray("bases", [this, RD] {
for (const auto &Spec : RD->bases())
JOS.value(createCXXBaseSpecifier(Spec));
});