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Showing content from https://clang.llvm.org/doxygen/CallGraph_8cpp_source.html below:

clang: lib/Analysis/CallGraph.cpp Source File

23#include "llvm/ADT/PostOrderIterator.h" 24#include "llvm/ADT/STLExtras.h" 25#include "llvm/ADT/Statistic.h" 26#include "llvm/Support/Casting.h" 27#include "llvm/Support/Compiler.h" 28#include "llvm/Support/DOTGraphTraits.h" 29#include "llvm/Support/GraphWriter.h" 30#include "llvm/Support/raw_ostream.h" 35using namespace clang

;

37#define DEBUG_TYPE "CallGraph" 39STATISTIC

(NumObjCCallEdges,

"Number of Objective-C method call edges"

);

40STATISTIC

(NumBlockCallEdges,

"Number of block call edges"

);

53 void

VisitStmt(

Stmt

*S) { VisitChildren(S); }

63 return Block

->getBlockDecl();

77 if

(

Decl

*

D

= getDeclFromCall(CE))

78

addCalledDecl(

D

, CE);

92

addCalledDecl(FD,

E

);

99

addCalledDecl(Def,

E

);

121 D

= IDecl->lookupPrivateMethod(Sel);

123 D

= IDecl->lookupPrivateClassMethod(Sel);

125

addCalledDecl(

D

, ME);

131 void

VisitChildren(

Stmt

*S) {

132 for

(

Stmt

*SubStmt : S->children())

134

this->

Visit

(SubStmt);

141 if

(

BlockDecl

*BD = dyn_cast<BlockDecl>(

D

))

142

addNodeForDecl(BD,

true

);

144 for

(

auto

*I :

D

->decls())

145 if

(

auto

*DC = dyn_cast<DeclContext>(I))

170 if

(FD->isDependentContext())

174 if

(II && II->

getName

().starts_with(

"__inline"

))

181void

CallGraph::addNodeForDecl(

Decl

*

D

,

bool

IsGlobal) {

188

CGBuilder builder(

this

,

Node

);

193 if

(

auto

constructor = dyn_cast<CXXConstructorDecl>(

D

)) {

195

builder.Visit(init->getInit());

201

FunctionMapTy::const_iterator I = FunctionMap.find(F);

202 if

(I == FunctionMap.end())

return nullptr

;

203 return

I->second.get();

207 if

(F && !isa<ObjCMethodDecl>(F))

210

std::unique_ptr<CallGraphNode> &

Node

= FunctionMap[F];

214 Node

= std::make_unique<CallGraphNode>(F);

222

OS <<

" --- Call graph Dump --- \n"

;

226

llvm::ReversePostOrderTraversal<const CallGraph *> RPOT(

this

);

227 for

(llvm::ReversePostOrderTraversal<const CallGraph *>::rpo_iterator

228

I = RPOT.begin(),

E

= RPOT.end(); I !=

E

; ++I) {

231

OS <<

" Function: "

;

239

CE = N->

end

(); CI != CE; ++CI) {

240

assert(CI->Callee != Root &&

"No one can call the root node."

);

241

CI->Callee->print(OS);

250 print

(llvm::errs());

254

llvm::ViewGraph(

this

,

"CallGraph"

);

258 if

(

const NamedDecl

*ND = dyn_cast_or_null<NamedDecl>(FD))

259 return

ND->printQualifiedName(os);

264 print

(llvm::errs());

278 if

(

const NamedDecl

*ND = dyn_cast_or_null<NamedDecl>(

Node

->getDecl()))

279 return

ND->getNameAsString();

STATISTIC(NumObjCCallEdges, "Number of Objective-C method call edges")

Defines the clang::IdentifierInfo, clang::IdentifierTable, and clang::Selector interfaces.

Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified.

Represents a block literal declaration, which is like an unnamed FunctionDecl.

BlockExpr - Adaptor class for mixing a BlockDecl with expressions.

Represents a call to a C++ constructor.

Represents a C++ constructor within a class.

Represents a C++ base or member initializer.

A default argument (C++ [dcl.fct.default]).

A use of a default initializer in a constructor or in aggregate initialization.

Represents a static or instance method of a struct/union/class.

Represents a new-expression for memory allocation and constructor calls, e.g: "new CXXNewExpr(foo)".

CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).

FunctionDecl * getDirectCallee()

If the callee is a FunctionDecl, return it. Otherwise return null.

iterator begin()

Iterators through all the callees/children of the node.

void print(raw_ostream &os) const

SmallVectorImpl< CallRecord >::const_iterator const_iterator

void addCallee(CallRecord Call)

The AST-based call graph.

CallGraphNode * getNode(const Decl *) const

Lookup the node for the given declaration.

void addNodesForBlocks(DeclContext *D)

bool VisitFunctionDecl(FunctionDecl *FD) override

Part of recursive declaration visitation.

CallGraphNode * getOrInsertNode(Decl *)

Lookup the node for the given declaration.

void print(raw_ostream &os) const

static bool includeCalleeInGraph(const Decl *D)

Determine if a declaration should be included in the graph for the purposes of being a callee.

CallGraphNode * getRoot() const

Get the virtual root of the graph, all the functions available externally are represented as callees ...

static bool includeInGraph(const Decl *D)

Determine if a declaration should be included in the graph.

DeclContext - This is used only as base class of specific decl types that can act as declaration cont...

Decl - This represents one declaration (or definition), e.g.

virtual Stmt * getBody() const

getBody - If this Decl represents a declaration for a body of code, such as a function or method defi...

virtual bool hasBody() const

Returns true if this Decl represents a declaration for a body of code, such as a function or method d...

virtual Decl * getCanonicalDecl()

Retrieves the "canonical" declaration of the given declaration.

const T * get() const

Retrieve the stored node as type T.

bool ShouldVisitTemplateInstantiations

Whether this visitor should recurse into template instantiations.

bool ShouldVisitImplicitCode

Whether this visitor should recurse into implicit code, e.g.

bool ShouldWalkTypesOfTypeLocs

Whether this visitor should recurse into the types of TypeLocs.

This represents one expression.

Expr * IgnoreParenImpCasts() LLVM_READONLY

Skip past any parentheses and implicit casts which might surround this expression until reaching a fi...

Represents a function declaration or definition.

FunctionDecl * getDefinition()

Get the definition for this declaration.

Declaration of a template function.

One of these records is kept for each identifier that is lexed.

StringRef getName() const

Return the actual identifier string.

A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked l...

This represents a decl that may have a name.

Represents an ObjC class declaration.

An expression that sends a message to the given Objective-C object or class.

Selector getSelector() const

bool isInstanceMessage() const

Determine whether this is an instance message to either a computed object or to super.

ObjCInterfaceDecl * getReceiverInterface() const

Retrieve the Objective-C interface to which this message is being directed, if known.

Smart pointer class that efficiently represents Objective-C method names.

RetTy Visit(PTR(Stmt) S, ParamTys... P)

StmtVisitor - This class implements a simple visitor for Stmt subclasses.

Stmt - This represents one statement.

bool LE(InterpState &S, CodePtr OpPC)

The JSON file list parser is used to communicate input to InstallAPI.

Diagnostic wrappers for TextAPI types for error reporting.

DOTGraphTraits(bool isSimple=false)

static std::string getNodeLabel(const CallGraphNode *Node, const CallGraph *CG)


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