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llvm-project/clang/tools/libclang/CXCursor.cpp

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//===- CXCursor.cpp - Routines for manipulating CXCursors -----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines routines for manipulating CXCursors. It should be the
// only file that has internal knowledge of the encoding of the data in
// CXCursor.
//
//===----------------------------------------------------------------------===//
#include "CXTranslationUnit.h"
#include "CXCursor.h"
#include "CXString.h"
#include "CXType.h"
#include "clang-c/Index.h"
#include "clang/AST/Attr.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/ExprObjC.h"
#include "clang/Frontend/ASTUnit.h"
#include "llvm/Support/ErrorHandling.h"
using namespace clang;
using namespace cxcursor;
CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K, CXTranslationUnit TU) {
assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid);
CXCursor C = { K, 0, { 0, 0, TU } };
return C;
}
static CXCursorKind GetCursorKind(const Attr *A) {
assert(A && "Invalid arguments!");
switch (A->getKind()) {
default: break;
case attr::IBAction: return CXCursor_IBActionAttr;
case attr::IBOutlet: return CXCursor_IBOutletAttr;
case attr::IBOutletCollection: return CXCursor_IBOutletCollectionAttr;
case attr::Final: return CXCursor_CXXFinalAttr;
case attr::Override: return CXCursor_CXXOverrideAttr;
case attr::Annotate: return CXCursor_AnnotateAttr;
case attr::AsmLabel: return CXCursor_AsmLabelAttr;
case attr::Packed: return CXCursor_PackedAttr;
}
return CXCursor_UnexposedAttr;
}
CXCursor cxcursor::MakeCXCursor(const Attr *A, const Decl *Parent,
CXTranslationUnit TU) {
assert(A && Parent && TU && "Invalid arguments!");
CXCursor C = { GetCursorKind(A), 0, { Parent, A, TU } };
return C;
}
CXCursor cxcursor::MakeCXCursor(const Decl *D, CXTranslationUnit TU,
SourceRange RegionOfInterest,
bool FirstInDeclGroup) {
assert(D && TU && "Invalid arguments!");
CXCursorKind K = getCursorKindForDecl(D);
if (K == CXCursor_ObjCClassMethodDecl ||
K == CXCursor_ObjCInstanceMethodDecl) {
int SelectorIdIndex = -1;
// Check if cursor points to a selector id.
if (RegionOfInterest.isValid() &&
RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) {
SmallVector<SourceLocation, 16> SelLocs;
cast<ObjCMethodDecl>(D)->getSelectorLocs(SelLocs);
SmallVectorImpl<SourceLocation>::iterator
I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin());
if (I != SelLocs.end())
SelectorIdIndex = I - SelLocs.begin();
}
CXCursor C = { K, SelectorIdIndex,
{ D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }};
return C;
}
CXCursor C = { K, 0, { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }};
return C;
}
CXCursor cxcursor::MakeCXCursor(const Stmt *S, const Decl *Parent,
CXTranslationUnit TU,
SourceRange RegionOfInterest) {
assert(S && TU && "Invalid arguments!");
CXCursorKind K = CXCursor_NotImplemented;
switch (S->getStmtClass()) {
case Stmt::NoStmtClass:
break;
case Stmt::CaseStmtClass:
K = CXCursor_CaseStmt;
break;
case Stmt::DefaultStmtClass:
K = CXCursor_DefaultStmt;
break;
case Stmt::IfStmtClass:
K = CXCursor_IfStmt;
break;
case Stmt::SwitchStmtClass:
K = CXCursor_SwitchStmt;
break;
case Stmt::WhileStmtClass:
K = CXCursor_WhileStmt;
break;
case Stmt::DoStmtClass:
K = CXCursor_DoStmt;
break;
case Stmt::ForStmtClass:
K = CXCursor_ForStmt;
break;
case Stmt::GotoStmtClass:
K = CXCursor_GotoStmt;
break;
case Stmt::IndirectGotoStmtClass:
K = CXCursor_IndirectGotoStmt;
break;
case Stmt::ContinueStmtClass:
K = CXCursor_ContinueStmt;
break;
case Stmt::BreakStmtClass:
K = CXCursor_BreakStmt;
break;
case Stmt::ReturnStmtClass:
K = CXCursor_ReturnStmt;
break;
case Stmt::GCCAsmStmtClass:
K = CXCursor_GCCAsmStmt;
break;
case Stmt::MSAsmStmtClass:
K = CXCursor_MSAsmStmt;
break;
case Stmt::ObjCAtTryStmtClass:
K = CXCursor_ObjCAtTryStmt;
break;
case Stmt::ObjCAtCatchStmtClass:
K = CXCursor_ObjCAtCatchStmt;
break;
case Stmt::ObjCAtFinallyStmtClass:
K = CXCursor_ObjCAtFinallyStmt;
break;
case Stmt::ObjCAtThrowStmtClass:
K = CXCursor_ObjCAtThrowStmt;
break;
case Stmt::ObjCAtSynchronizedStmtClass:
K = CXCursor_ObjCAtSynchronizedStmt;
break;
case Stmt::ObjCAutoreleasePoolStmtClass:
K = CXCursor_ObjCAutoreleasePoolStmt;
break;
case Stmt::ObjCForCollectionStmtClass:
K = CXCursor_ObjCForCollectionStmt;
break;
case Stmt::CXXCatchStmtClass:
K = CXCursor_CXXCatchStmt;
break;
case Stmt::CXXTryStmtClass:
K = CXCursor_CXXTryStmt;
break;
case Stmt::CXXForRangeStmtClass:
K = CXCursor_CXXForRangeStmt;
break;
case Stmt::SEHTryStmtClass:
K = CXCursor_SEHTryStmt;
break;
case Stmt::SEHExceptStmtClass:
K = CXCursor_SEHExceptStmt;
break;
case Stmt::SEHFinallyStmtClass:
K = CXCursor_SEHFinallyStmt;
break;
case Stmt::ArrayTypeTraitExprClass:
case Stmt::AsTypeExprClass:
case Stmt::AtomicExprClass:
case Stmt::BinaryConditionalOperatorClass:
case Stmt::TypeTraitExprClass:
case Stmt::CXXBindTemporaryExprClass:
case Stmt::CXXDefaultArgExprClass:
case Stmt::CXXDefaultInitExprClass:
case Stmt::CXXStdInitializerListExprClass:
case Stmt::CXXScalarValueInitExprClass:
case Stmt::CXXUuidofExprClass:
case Stmt::ChooseExprClass:
case Stmt::DesignatedInitExprClass:
case Stmt::ExprWithCleanupsClass:
case Stmt::ExpressionTraitExprClass:
case Stmt::ExtVectorElementExprClass:
case Stmt::ImplicitCastExprClass:
case Stmt::ImplicitValueInitExprClass:
case Stmt::MaterializeTemporaryExprClass:
case Stmt::ObjCIndirectCopyRestoreExprClass:
case Stmt::OffsetOfExprClass:
case Stmt::ParenListExprClass:
case Stmt::PredefinedExprClass:
case Stmt::ShuffleVectorExprClass:
case Stmt::ConvertVectorExprClass:
case Stmt::UnaryExprOrTypeTraitExprClass:
case Stmt::VAArgExprClass:
case Stmt::ObjCArrayLiteralClass:
case Stmt::ObjCDictionaryLiteralClass:
case Stmt::ObjCBoxedExprClass:
case Stmt::ObjCSubscriptRefExprClass:
K = CXCursor_UnexposedExpr;
break;
case Stmt::OpaqueValueExprClass:
if (Expr *Src = cast<OpaqueValueExpr>(S)->getSourceExpr())
return MakeCXCursor(Src, Parent, TU, RegionOfInterest);
K = CXCursor_UnexposedExpr;
break;
case Stmt::PseudoObjectExprClass:
return MakeCXCursor(cast<PseudoObjectExpr>(S)->getSyntacticForm(),
Parent, TU, RegionOfInterest);
case Stmt::CompoundStmtClass:
K = CXCursor_CompoundStmt;
break;
case Stmt::NullStmtClass:
K = CXCursor_NullStmt;
break;
case Stmt::LabelStmtClass:
K = CXCursor_LabelStmt;
break;
case Stmt::AttributedStmtClass:
K = CXCursor_UnexposedStmt;
break;
case Stmt::DeclStmtClass:
K = CXCursor_DeclStmt;
break;
case Stmt::CapturedStmtClass:
K = CXCursor_UnexposedStmt;
break;
case Stmt::IntegerLiteralClass:
K = CXCursor_IntegerLiteral;
break;
case Stmt::FloatingLiteralClass:
K = CXCursor_FloatingLiteral;
break;
case Stmt::ImaginaryLiteralClass:
K = CXCursor_ImaginaryLiteral;
break;
case Stmt::StringLiteralClass:
K = CXCursor_StringLiteral;
break;
case Stmt::CharacterLiteralClass:
K = CXCursor_CharacterLiteral;
break;
case Stmt::ParenExprClass:
K = CXCursor_ParenExpr;
break;
case Stmt::UnaryOperatorClass:
K = CXCursor_UnaryOperator;
break;
case Stmt::CXXNoexceptExprClass:
K = CXCursor_UnaryExpr;
break;
case Stmt::ArraySubscriptExprClass:
K = CXCursor_ArraySubscriptExpr;
break;
case Stmt::BinaryOperatorClass:
K = CXCursor_BinaryOperator;
break;
case Stmt::CompoundAssignOperatorClass:
K = CXCursor_CompoundAssignOperator;
break;
case Stmt::ConditionalOperatorClass:
K = CXCursor_ConditionalOperator;
break;
case Stmt::CStyleCastExprClass:
K = CXCursor_CStyleCastExpr;
break;
case Stmt::CompoundLiteralExprClass:
K = CXCursor_CompoundLiteralExpr;
break;
case Stmt::InitListExprClass:
K = CXCursor_InitListExpr;
break;
case Stmt::AddrLabelExprClass:
K = CXCursor_AddrLabelExpr;
break;
case Stmt::StmtExprClass:
K = CXCursor_StmtExpr;
break;
case Stmt::GenericSelectionExprClass:
K = CXCursor_GenericSelectionExpr;
break;
case Stmt::GNUNullExprClass:
K = CXCursor_GNUNullExpr;
break;
case Stmt::CXXStaticCastExprClass:
K = CXCursor_CXXStaticCastExpr;
break;
case Stmt::CXXDynamicCastExprClass:
K = CXCursor_CXXDynamicCastExpr;
break;
case Stmt::CXXReinterpretCastExprClass:
K = CXCursor_CXXReinterpretCastExpr;
break;
case Stmt::CXXConstCastExprClass:
K = CXCursor_CXXConstCastExpr;
break;
case Stmt::CXXFunctionalCastExprClass:
K = CXCursor_CXXFunctionalCastExpr;
break;
case Stmt::CXXTypeidExprClass:
K = CXCursor_CXXTypeidExpr;
break;
case Stmt::CXXBoolLiteralExprClass:
K = CXCursor_CXXBoolLiteralExpr;
break;
case Stmt::CXXNullPtrLiteralExprClass:
K = CXCursor_CXXNullPtrLiteralExpr;
break;
case Stmt::CXXThisExprClass:
K = CXCursor_CXXThisExpr;
break;
case Stmt::CXXThrowExprClass:
K = CXCursor_CXXThrowExpr;
break;
case Stmt::CXXNewExprClass:
K = CXCursor_CXXNewExpr;
break;
case Stmt::CXXDeleteExprClass:
K = CXCursor_CXXDeleteExpr;
break;
case Stmt::ObjCStringLiteralClass:
K = CXCursor_ObjCStringLiteral;
break;
case Stmt::ObjCEncodeExprClass:
K = CXCursor_ObjCEncodeExpr;
break;
case Stmt::ObjCSelectorExprClass:
K = CXCursor_ObjCSelectorExpr;
break;
case Stmt::ObjCProtocolExprClass:
K = CXCursor_ObjCProtocolExpr;
break;
case Stmt::ObjCBoolLiteralExprClass:
K = CXCursor_ObjCBoolLiteralExpr;
break;
case Stmt::ObjCBridgedCastExprClass:
K = CXCursor_ObjCBridgedCastExpr;
break;
case Stmt::BlockExprClass:
K = CXCursor_BlockExpr;
break;
case Stmt::PackExpansionExprClass:
K = CXCursor_PackExpansionExpr;
break;
case Stmt::SizeOfPackExprClass:
K = CXCursor_SizeOfPackExpr;
break;
case Stmt::DeclRefExprClass:
if (const ImplicitParamDecl *IPD =
dyn_cast_or_null<ImplicitParamDecl>(cast<DeclRefExpr>(S)->getDecl())) {
if (const ObjCMethodDecl *MD =
dyn_cast<ObjCMethodDecl>(IPD->getDeclContext())) {
if (MD->getSelfDecl() == IPD) {
K = CXCursor_ObjCSelfExpr;
break;
}
}
}
K = CXCursor_DeclRefExpr;
break;
case Stmt::DependentScopeDeclRefExprClass:
case Stmt::SubstNonTypeTemplateParmExprClass:
case Stmt::SubstNonTypeTemplateParmPackExprClass:
case Stmt::FunctionParmPackExprClass:
case Stmt::UnresolvedLookupExprClass:
K = CXCursor_DeclRefExpr;
break;
case Stmt::CXXDependentScopeMemberExprClass:
case Stmt::CXXPseudoDestructorExprClass:
case Stmt::MemberExprClass:
case Stmt::MSPropertyRefExprClass:
case Stmt::ObjCIsaExprClass:
case Stmt::ObjCIvarRefExprClass:
case Stmt::ObjCPropertyRefExprClass:
case Stmt::UnresolvedMemberExprClass:
K = CXCursor_MemberRefExpr;
break;
case Stmt::CallExprClass:
case Stmt::CXXOperatorCallExprClass:
case Stmt::CXXMemberCallExprClass:
case Stmt::CUDAKernelCallExprClass:
case Stmt::CXXConstructExprClass:
case Stmt::CXXTemporaryObjectExprClass:
case Stmt::CXXUnresolvedConstructExprClass:
case Stmt::UserDefinedLiteralClass:
K = CXCursor_CallExpr;
break;
case Stmt::LambdaExprClass:
K = CXCursor_LambdaExpr;
break;
case Stmt::ObjCMessageExprClass: {
K = CXCursor_ObjCMessageExpr;
int SelectorIdIndex = -1;
// Check if cursor points to a selector id.
if (RegionOfInterest.isValid() &&
RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) {
SmallVector<SourceLocation, 16> SelLocs;
cast<ObjCMessageExpr>(S)->getSelectorLocs(SelLocs);
SmallVectorImpl<SourceLocation>::iterator
I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin());
if (I != SelLocs.end())
SelectorIdIndex = I - SelLocs.begin();
}
CXCursor C = { K, 0, { Parent, S, TU } };
return getSelectorIdentifierCursor(SelectorIdIndex, C);
}
case Stmt::MSDependentExistsStmtClass:
K = CXCursor_UnexposedStmt;
break;
case Stmt::OMPParallelDirectiveClass:
K = CXCursor_OMPParallelDirective;
break;
case Stmt::OMPSimdDirectiveClass:
K = CXCursor_OMPSimdDirective;
break;
}
CXCursor C = { K, 0, { Parent, S, TU } };
return C;
}
CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super,
SourceLocation Loc,
CXTranslationUnit TU) {
assert(Super && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_ObjCSuperClassRef, 0, { Super, RawLoc, TU } };
return C;
}
std::pair<const ObjCInterfaceDecl *, SourceLocation>
cxcursor::getCursorObjCSuperClassRef(CXCursor C) {
assert(C.kind == CXCursor_ObjCSuperClassRef);
return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorObjCProtocolRef(const ObjCProtocolDecl *Proto,
SourceLocation Loc,
CXTranslationUnit TU) {
assert(Proto && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_ObjCProtocolRef, 0, { Proto, RawLoc, TU } };
return C;
}
std::pair<const ObjCProtocolDecl *, SourceLocation>
cxcursor::getCursorObjCProtocolRef(CXCursor C) {
assert(C.kind == CXCursor_ObjCProtocolRef);
return std::make_pair(static_cast<const ObjCProtocolDecl *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorObjCClassRef(const ObjCInterfaceDecl *Class,
SourceLocation Loc,
CXTranslationUnit TU) {
// 'Class' can be null for invalid code.
if (!Class)
return MakeCXCursorInvalid(CXCursor_InvalidCode);
assert(TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_ObjCClassRef, 0, { Class, RawLoc, TU } };
return C;
}
std::pair<const ObjCInterfaceDecl *, SourceLocation>
cxcursor::getCursorObjCClassRef(CXCursor C) {
assert(C.kind == CXCursor_ObjCClassRef);
return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorTypeRef(const TypeDecl *Type, SourceLocation Loc,
CXTranslationUnit TU) {
assert(Type && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_TypeRef, 0, { Type, RawLoc, TU } };
return C;
}
std::pair<const TypeDecl *, SourceLocation>
cxcursor::getCursorTypeRef(CXCursor C) {
assert(C.kind == CXCursor_TypeRef);
return std::make_pair(static_cast<const TypeDecl *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorTemplateRef(const TemplateDecl *Template,
SourceLocation Loc,
CXTranslationUnit TU) {
assert(Template && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_TemplateRef, 0, { Template, RawLoc, TU } };
return C;
}
std::pair<const TemplateDecl *, SourceLocation>
cxcursor::getCursorTemplateRef(CXCursor C) {
assert(C.kind == CXCursor_TemplateRef);
return std::make_pair(static_cast<const TemplateDecl *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorNamespaceRef(const NamedDecl *NS,
SourceLocation Loc,
CXTranslationUnit TU) {
assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU &&
"Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_NamespaceRef, 0, { NS, RawLoc, TU } };
return C;
}
std::pair<const NamedDecl *, SourceLocation>
cxcursor::getCursorNamespaceRef(CXCursor C) {
assert(C.kind == CXCursor_NamespaceRef);
return std::make_pair(static_cast<const NamedDecl *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorVariableRef(const VarDecl *Var, SourceLocation Loc,
CXTranslationUnit TU) {
assert(Var && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_VariableRef, 0, { Var, RawLoc, TU } };
return C;
}
std::pair<const VarDecl *, SourceLocation>
cxcursor::getCursorVariableRef(CXCursor C) {
assert(C.kind == CXCursor_VariableRef);
return std::make_pair(static_cast<const VarDecl *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorMemberRef(const FieldDecl *Field, SourceLocation Loc,
CXTranslationUnit TU) {
assert(Field && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_MemberRef, 0, { Field, RawLoc, TU } };
return C;
}
std::pair<const FieldDecl *, SourceLocation>
cxcursor::getCursorMemberRef(CXCursor C) {
assert(C.kind == CXCursor_MemberRef);
return std::make_pair(static_cast<const FieldDecl *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier *B,
CXTranslationUnit TU){
CXCursor C = { CXCursor_CXXBaseSpecifier, 0, { B, 0, TU } };
return C;
}
const CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) {
assert(C.kind == CXCursor_CXXBaseSpecifier);
return static_cast<const CXXBaseSpecifier*>(C.data[0]);
}
CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range,
CXTranslationUnit TU) {
CXCursor C = { CXCursor_PreprocessingDirective, 0,
{ Range.getBegin().getPtrEncoding(),
Range.getEnd().getPtrEncoding(),
TU }
};
return C;
}
SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) {
assert(C.kind == CXCursor_PreprocessingDirective);
SourceRange Range(SourceLocation::getFromPtrEncoding(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
ASTUnit *TU = getCursorASTUnit(C);
return TU->mapRangeFromPreamble(Range);
}
CXCursor cxcursor::MakeMacroDefinitionCursor(const MacroDefinition *MI,
CXTranslationUnit TU) {
CXCursor C = { CXCursor_MacroDefinition, 0, { MI, 0, TU } };
return C;
}
const MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) {
assert(C.kind == CXCursor_MacroDefinition);
return static_cast<const MacroDefinition *>(C.data[0]);
}
CXCursor cxcursor::MakeMacroExpansionCursor(MacroExpansion *MI,
CXTranslationUnit TU) {
CXCursor C = { CXCursor_MacroExpansion, 0, { MI, 0, TU } };
return C;
}
CXCursor cxcursor::MakeMacroExpansionCursor(MacroDefinition *MI,
SourceLocation Loc,
CXTranslationUnit TU) {
assert(Loc.isValid());
CXCursor C = { CXCursor_MacroExpansion, 0, { MI, Loc.getPtrEncoding(), TU } };
return C;
}
const IdentifierInfo *cxcursor::MacroExpansionCursor::getName() const {
if (isPseudo())
return getAsMacroDefinition()->getName();
return getAsMacroExpansion()->getName();
}
const MacroDefinition *cxcursor::MacroExpansionCursor::getDefinition() const {
if (isPseudo())
return getAsMacroDefinition();
return getAsMacroExpansion()->getDefinition();
}
SourceRange cxcursor::MacroExpansionCursor::getSourceRange() const {
if (isPseudo())
return getPseudoLoc();
return getAsMacroExpansion()->getSourceRange();
}
CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID,
CXTranslationUnit TU) {
CXCursor C = { CXCursor_InclusionDirective, 0, { ID, 0, TU } };
return C;
}
const InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) {
assert(C.kind == CXCursor_InclusionDirective);
return static_cast<const InclusionDirective *>(C.data[0]);
}
CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc,
CXTranslationUnit TU) {
assert(Label && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
CXCursor C = { CXCursor_LabelRef, 0, { Label, RawLoc, TU } };
return C;
}
std::pair<const LabelStmt *, SourceLocation>
cxcursor::getCursorLabelRef(CXCursor C) {
assert(C.kind == CXCursor_LabelRef);
return std::make_pair(static_cast<const LabelStmt *>(C.data[0]),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
CXCursor cxcursor::MakeCursorOverloadedDeclRef(const OverloadExpr *E,
CXTranslationUnit TU) {
assert(E && TU && "Invalid arguments!");
OverloadedDeclRefStorage Storage(E);
void *RawLoc = E->getNameLoc().getPtrEncoding();
CXCursor C = {
CXCursor_OverloadedDeclRef, 0,
{ Storage.getOpaqueValue(), RawLoc, TU }
};
return C;
}
CXCursor cxcursor::MakeCursorOverloadedDeclRef(const Decl *D,
SourceLocation Loc,
CXTranslationUnit TU) {
assert(D && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
OverloadedDeclRefStorage Storage(D);
CXCursor C = {
CXCursor_OverloadedDeclRef, 0,
{ Storage.getOpaqueValue(), RawLoc, TU }
};
return C;
}
CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name,
SourceLocation Loc,
CXTranslationUnit TU) {
assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!");
void *RawLoc = Loc.getPtrEncoding();
OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate());
CXCursor C = {
CXCursor_OverloadedDeclRef, 0,
{ Storage.getOpaqueValue(), RawLoc, TU }
};
return C;
}
std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation>
cxcursor::getCursorOverloadedDeclRef(CXCursor C) {
assert(C.kind == CXCursor_OverloadedDeclRef);
return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(
const_cast<void *>(C.data[0])),
SourceLocation::getFromPtrEncoding(C.data[1]));
}
const Decl *cxcursor::getCursorDecl(CXCursor Cursor) {
return static_cast<const Decl *>(Cursor.data[0]);
}
const Expr *cxcursor::getCursorExpr(CXCursor Cursor) {
return dyn_cast_or_null<Expr>(getCursorStmt(Cursor));
}
const Stmt *cxcursor::getCursorStmt(CXCursor Cursor) {
if (Cursor.kind == CXCursor_ObjCSuperClassRef ||
Cursor.kind == CXCursor_ObjCProtocolRef ||
Cursor.kind == CXCursor_ObjCClassRef)
return 0;
return static_cast<const Stmt *>(Cursor.data[1]);
}
const Attr *cxcursor::getCursorAttr(CXCursor Cursor) {
return static_cast<const Attr *>(Cursor.data[1]);
}
const Decl *cxcursor::getCursorParentDecl(CXCursor Cursor) {
return static_cast<const Decl *>(Cursor.data[0]);
}
ASTContext &cxcursor::getCursorContext(CXCursor Cursor) {
return getCursorASTUnit(Cursor)->getASTContext();
}
ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) {
CXTranslationUnit TU = getCursorTU(Cursor);
if (!TU)
return 0;
return cxtu::getASTUnit(TU);
}
CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) {
return static_cast<CXTranslationUnit>(const_cast<void*>(Cursor.data[2]));
}
void cxcursor::getOverriddenCursors(CXCursor cursor,
SmallVectorImpl<CXCursor> &overridden) {
assert(clang_isDeclaration(cursor.kind));
const NamedDecl *D = dyn_cast_or_null<NamedDecl>(getCursorDecl(cursor));
if (!D)
return;
CXTranslationUnit TU = getCursorTU(cursor);
SmallVector<const NamedDecl *, 8> OverDecls;
D->getASTContext().getOverriddenMethods(D, OverDecls);
for (SmallVectorImpl<const NamedDecl *>::iterator
I = OverDecls.begin(), E = OverDecls.end(); I != E; ++I) {
overridden.push_back(MakeCXCursor(*I, TU));
}
}
std::pair<int, SourceLocation>
cxcursor::getSelectorIdentifierIndexAndLoc(CXCursor cursor) {
if (cursor.kind == CXCursor_ObjCMessageExpr) {
if (cursor.xdata != -1)
return std::make_pair(cursor.xdata,
cast<ObjCMessageExpr>(getCursorExpr(cursor))
->getSelectorLoc(cursor.xdata));
} else if (cursor.kind == CXCursor_ObjCClassMethodDecl ||
cursor.kind == CXCursor_ObjCInstanceMethodDecl) {
if (cursor.xdata != -1)
return std::make_pair(cursor.xdata,
cast<ObjCMethodDecl>(getCursorDecl(cursor))
->getSelectorLoc(cursor.xdata));
}
return std::make_pair(-1, SourceLocation());
}
CXCursor cxcursor::getSelectorIdentifierCursor(int SelIdx, CXCursor cursor) {
CXCursor newCursor = cursor;
if (cursor.kind == CXCursor_ObjCMessageExpr) {
if (SelIdx == -1 ||
unsigned(SelIdx) >= cast<ObjCMessageExpr>(getCursorExpr(cursor))
->getNumSelectorLocs())
newCursor.xdata = -1;
else
newCursor.xdata = SelIdx;
} else if (cursor.kind == CXCursor_ObjCClassMethodDecl ||
cursor.kind == CXCursor_ObjCInstanceMethodDecl) {
if (SelIdx == -1 ||
unsigned(SelIdx) >= cast<ObjCMethodDecl>(getCursorDecl(cursor))
->getNumSelectorLocs())
newCursor.xdata = -1;
else
newCursor.xdata = SelIdx;
}
return newCursor;
}
CXCursor cxcursor::getTypeRefCursor(CXCursor cursor) {
if (cursor.kind != CXCursor_CallExpr)
return cursor;
if (cursor.xdata == 0)
return cursor;
const Expr *E = getCursorExpr(cursor);
TypeSourceInfo *Type = 0;
if (const CXXUnresolvedConstructExpr *
UnCtor = dyn_cast<CXXUnresolvedConstructExpr>(E)) {
Type = UnCtor->getTypeSourceInfo();
} else if (const CXXTemporaryObjectExpr *Tmp =
dyn_cast<CXXTemporaryObjectExpr>(E)){
Type = Tmp->getTypeSourceInfo();
}
if (!Type)
return cursor;
CXTranslationUnit TU = getCursorTU(cursor);
QualType Ty = Type->getType();
TypeLoc TL = Type->getTypeLoc();
SourceLocation Loc = TL.getBeginLoc();
if (const ElaboratedType *ElabT = Ty->getAs<ElaboratedType>()) {
Ty = ElabT->getNamedType();
ElaboratedTypeLoc ElabTL = TL.castAs<ElaboratedTypeLoc>();
Loc = ElabTL.getNamedTypeLoc().getBeginLoc();
}
if (const TypedefType *Typedef = Ty->getAs<TypedefType>())
return MakeCursorTypeRef(Typedef->getDecl(), Loc, TU);
if (const TagType *Tag = Ty->getAs<TagType>())
return MakeCursorTypeRef(Tag->getDecl(), Loc, TU);
if (const TemplateTypeParmType *TemplP = Ty->getAs<TemplateTypeParmType>())
return MakeCursorTypeRef(TemplP->getDecl(), Loc, TU);
return cursor;
}
bool cxcursor::operator==(CXCursor X, CXCursor Y) {
return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] &&
X.data[2] == Y.data[2];
}
// FIXME: Remove once we can model DeclGroups and their appropriate ranges
// properly in the ASTs.
bool cxcursor::isFirstInDeclGroup(CXCursor C) {
assert(clang_isDeclaration(C.kind));
return ((uintptr_t) (C.data[1])) != 0;
}
//===----------------------------------------------------------------------===//
// libclang CXCursor APIs
//===----------------------------------------------------------------------===//
extern "C" {
int clang_Cursor_isNull(CXCursor cursor) {
return clang_equalCursors(cursor, clang_getNullCursor());
}
CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor cursor) {
return getCursorTU(cursor);
}
int clang_Cursor_getNumArguments(CXCursor C) {
if (clang_isDeclaration(C.kind)) {
const Decl *D = cxcursor::getCursorDecl(C);
if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D))
return MD->param_size();
if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D))
return FD->param_size();
}
if (clang_isExpression(C.kind)) {
const Expr *E = cxcursor::getCursorExpr(C);
if (const CallExpr *CE = dyn_cast<CallExpr>(E)) {
return CE->getNumArgs();
}
}
return -1;
}
CXCursor clang_Cursor_getArgument(CXCursor C, unsigned i) {
if (clang_isDeclaration(C.kind)) {
const Decl *D = cxcursor::getCursorDecl(C);
if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D)) {
if (i < MD->param_size())
return cxcursor::MakeCXCursor(MD->param_begin()[i],
cxcursor::getCursorTU(C));
} else if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) {
if (i < FD->param_size())
return cxcursor::MakeCXCursor(FD->param_begin()[i],
cxcursor::getCursorTU(C));
}
}
if (clang_isExpression(C.kind)) {
const Expr *E = cxcursor::getCursorExpr(C);
if (const CallExpr *CE = dyn_cast<CallExpr>(E)) {
if (i < CE->getNumArgs()) {
return cxcursor::MakeCXCursor(CE->getArg(i),
getCursorDecl(C),
cxcursor::getCursorTU(C));
}
}
}
return clang_getNullCursor();
}
} // end: extern "C"
//===----------------------------------------------------------------------===//
// CXCursorSet.
//===----------------------------------------------------------------------===//
typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl;
static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) {
return (CXCursorSet) setImpl;
}
static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) {
return (CXCursorSet_Impl*) set;
}
namespace llvm {
template<> struct DenseMapInfo<CXCursor> {
public:
static inline CXCursor getEmptyKey() {
return MakeCXCursorInvalid(CXCursor_InvalidFile);
}
static inline CXCursor getTombstoneKey() {
return MakeCXCursorInvalid(CXCursor_NoDeclFound);
}
static inline unsigned getHashValue(const CXCursor &cursor) {
return llvm::DenseMapInfo<std::pair<const void *, const void *> >
::getHashValue(std::make_pair(cursor.data[0], cursor.data[1]));
}
static inline bool isEqual(const CXCursor &x, const CXCursor &y) {
return x.kind == y.kind &&
x.data[0] == y.data[0] &&
x.data[1] == y.data[1];
}
};
}
extern "C" {
CXCursorSet clang_createCXCursorSet() {
return packCXCursorSet(new CXCursorSet_Impl());
}
void clang_disposeCXCursorSet(CXCursorSet set) {
delete unpackCXCursorSet(set);
}
unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) {
CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
if (!setImpl)
return 0;
return setImpl->find(cursor) != setImpl->end();
}
unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) {
// Do not insert invalid cursors into the set.
if (cursor.kind >= CXCursor_FirstInvalid &&
cursor.kind <= CXCursor_LastInvalid)
return 1;
CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
if (!setImpl)
return 1;
unsigned &entry = (*setImpl)[cursor];
unsigned flag = entry == 0 ? 1 : 0;
entry = 1;
return flag;
}
CXCompletionString clang_getCursorCompletionString(CXCursor cursor) {
enum CXCursorKind kind = clang_getCursorKind(cursor);
if (clang_isDeclaration(kind)) {
const Decl *decl = getCursorDecl(cursor);
if (const NamedDecl *namedDecl = dyn_cast_or_null<NamedDecl>(decl)) {
ASTUnit *unit = getCursorASTUnit(cursor);
CodeCompletionResult Result(namedDecl, CCP_Declaration);
CodeCompletionString *String
= Result.CreateCodeCompletionString(unit->getASTContext(),
unit->getPreprocessor(),
unit->getCodeCompletionTUInfo().getAllocator(),
unit->getCodeCompletionTUInfo(),
true);
return String;
}
}
else if (kind == CXCursor_MacroDefinition) {
const MacroDefinition *definition = getCursorMacroDefinition(cursor);
const IdentifierInfo *MacroInfo = definition->getName();
ASTUnit *unit = getCursorASTUnit(cursor);
CodeCompletionResult Result(MacroInfo);
CodeCompletionString *String
= Result.CreateCodeCompletionString(unit->getASTContext(),
unit->getPreprocessor(),
unit->getCodeCompletionTUInfo().getAllocator(),
unit->getCodeCompletionTUInfo(),
false);
return String;
}
return NULL;
}
} // end: extern C.
namespace {
struct OverridenCursorsPool {
typedef SmallVector<CXCursor, 2> CursorVec;
std::vector<CursorVec*> AllCursors;
std::vector<CursorVec*> AvailableCursors;
~OverridenCursorsPool() {
for (std::vector<CursorVec*>::iterator I = AllCursors.begin(),
E = AllCursors.end(); I != E; ++I) {
delete *I;
}
}
};
}
void *cxcursor::createOverridenCXCursorsPool() {
return new OverridenCursorsPool();
}
void cxcursor::disposeOverridenCXCursorsPool(void *pool) {
delete static_cast<OverridenCursorsPool*>(pool);
}
extern "C" {
void clang_getOverriddenCursors(CXCursor cursor,
CXCursor **overridden,
unsigned *num_overridden) {
if (overridden)
*overridden = 0;
if (num_overridden)
*num_overridden = 0;
CXTranslationUnit TU = cxcursor::getCursorTU(cursor);
if (!overridden || !num_overridden || !TU)
return;
if (!clang_isDeclaration(cursor.kind))
return;
OverridenCursorsPool &pool =
*static_cast<OverridenCursorsPool*>(TU->OverridenCursorsPool);
OverridenCursorsPool::CursorVec *Vec = 0;
if (!pool.AvailableCursors.empty()) {
Vec = pool.AvailableCursors.back();
pool.AvailableCursors.pop_back();
}
else {
Vec = new OverridenCursorsPool::CursorVec();
pool.AllCursors.push_back(Vec);
}
// Clear out the vector, but don't free the memory contents. This
// reduces malloc() traffic.
Vec->clear();
// Use the first entry to contain a back reference to the vector.
// This is a complete hack.
CXCursor backRefCursor = MakeCXCursorInvalid(CXCursor_InvalidFile, TU);
backRefCursor.data[0] = Vec;
assert(cxcursor::getCursorTU(backRefCursor) == TU);
Vec->push_back(backRefCursor);
// Get the overriden cursors.
cxcursor::getOverriddenCursors(cursor, *Vec);
// Did we get any overriden cursors? If not, return Vec to the pool
// of available cursor vectors.
if (Vec->size() == 1) {
pool.AvailableCursors.push_back(Vec);
return;
}
// Now tell the caller about the overriden cursors.
assert(Vec->size() > 1);
*overridden = &((*Vec)[1]);
*num_overridden = Vec->size() - 1;
}
void clang_disposeOverriddenCursors(CXCursor *overridden) {
if (!overridden)
return;
// Use pointer arithmetic to get back the first faux entry
// which has a back-reference to the TU and the vector.
--overridden;
OverridenCursorsPool::CursorVec *Vec =
static_cast<OverridenCursorsPool::CursorVec *>(
const_cast<void *>(overridden->data[0]));
CXTranslationUnit TU = getCursorTU(*overridden);
assert(Vec && TU);
OverridenCursorsPool &pool =
*static_cast<OverridenCursorsPool*>(TU->OverridenCursorsPool);
pool.AvailableCursors.push_back(Vec);
}
int clang_Cursor_isDynamicCall(CXCursor C) {
const Expr *E = 0;
if (clang_isExpression(C.kind))
E = getCursorExpr(C);
if (!E)
return 0;
if (const ObjCMessageExpr *MsgE = dyn_cast<ObjCMessageExpr>(E))
return MsgE->getReceiverKind() == ObjCMessageExpr::Instance;
const MemberExpr *ME = 0;
if (isa<MemberExpr>(E))
ME = cast<MemberExpr>(E);
else if (const CallExpr *CE = dyn_cast<CallExpr>(E))
ME = dyn_cast_or_null<MemberExpr>(CE->getCallee());
if (ME) {
if (const CXXMethodDecl *
MD = dyn_cast_or_null<CXXMethodDecl>(ME->getMemberDecl()))
return MD->isVirtual() && !ME->hasQualifier();
}
return 0;
}
CXType clang_Cursor_getReceiverType(CXCursor C) {
CXTranslationUnit TU = cxcursor::getCursorTU(C);
const Expr *E = 0;
if (clang_isExpression(C.kind))
E = getCursorExpr(C);
if (const ObjCMessageExpr *MsgE = dyn_cast_or_null<ObjCMessageExpr>(E))
return cxtype::MakeCXType(MsgE->getReceiverType(), TU);
return cxtype::MakeCXType(QualType(), TU);
}
} // end: extern "C"
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