BodyFarm.cpp File Reference

#include "clang/Analysis/BodyFarm.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/CXXInheritance.h"
#include "clang/AST/Decl.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/ExprObjC.h"
#include "clang/AST/NestedNameSpecifier.h"
#include "clang/Analysis/CodeInjector.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/OperatorKinds.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/Debug.h"
#include <optional>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "body-farm"

Typedefs
typedef Stmt *(*	FunctionFarmer) (ASTContext &C, const FunctionDecl *D)

Functions
static bool	isDispatchBlock (QualType Ty)
static CallExpr *	create_call_once_funcptr_call (ASTContext &C, ASTMaker M, const ParmVarDecl *Callback, ArrayRef< Expr * > CallArgs)
static CallExpr *	create_call_once_lambda_call (ASTContext &C, ASTMaker M, const ParmVarDecl *Callback, CXXRecordDecl *CallbackDecl, ArrayRef< Expr * > CallArgs)
static Stmt *	create_std_move_forward (ASTContext &C, const FunctionDecl *D)
	Create a fake body for 'std::move' or 'std::forward'. More...
static Stmt *	create_call_once (ASTContext &C, const FunctionDecl *D)
	Create a fake body for std::call_once. More...
static Stmt *	create_dispatch_once (ASTContext &C, const FunctionDecl *D)
	Create a fake body for dispatch_once. More...
static Stmt *	create_dispatch_sync (ASTContext &C, const FunctionDecl *D)
	Create a fake body for dispatch_sync. More...
static Stmt *	create_OSAtomicCompareAndSwap (ASTContext &C, const FunctionDecl *D)
static const ObjCIvarDecl *	findBackingIvar (const ObjCPropertyDecl *Prop)
static Stmt *	createObjCPropertyGetter (ASTContext &Ctx, const ObjCMethodDecl *MD)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "body-farm"

Definition at line 29 of file BodyFarm.cpp.

Typedef Documentation

FunctionFarmer

typedef Stmt*(* FunctionFarmer) (ASTContext &C, const FunctionDecl *D)

Definition at line 259 of file BodyFarm.cpp.

Function Documentation

create_call_once()

static Stmt* create_call_once ( ASTContext &  C, const FunctionDecl *  D  )

static

Create a fake body for std::call_once.

Emulates the following function body:

typedef struct once_flag_s {
  unsigned long __state = 0;
} once_flag;
template<class Callable>
void call_once(once_flag& o, Callable func) {
  if (!o.__state) {
    func();
  }
  o.__state = 1;
}

Definition at line 346 of file BodyFarm.cpp.

References D.

create_call_once_funcptr_call()

static CallExpr* create_call_once_funcptr_call ( ASTContext &  C, ASTMaker  M, const ParmVarDecl *  Callback, ArrayRef< Expr * >  CallArgs  )

static

Definition at line 261 of file BodyFarm.cpp.

create_call_once_lambda_call()

static CallExpr* create_call_once_lambda_call ( ASTContext &  C, ASTMaker  M, const ParmVarDecl *  Callback, CXXRecordDecl *  CallbackDecl, ArrayRef< Expr * >  CallArgs  )

static

Definition at line 287 of file BodyFarm.cpp.

create_dispatch_once()

static Stmt* create_dispatch_once ( ASTContext &  C, const FunctionDecl *  D  )

static

Create a fake body for dispatch_once.

Definition at line 508 of file BodyFarm.cpp.

References Block, clang::UnaryOperator::Create(), clang::CallExpr::Create(), clang::IfStmt::Create(), D, clang::Type::getAs(), clang::PointerType::getPointeeType(), clang::ValueDecl::getType(), clang::If, isDispatchBlock(), clang::Type::isIntegerType(), clang::OK_Ordinary, clang::Ordinary, and clang::VK_PRValue.

create_dispatch_sync()

static Stmt* create_dispatch_sync ( ASTContext &  C, const FunctionDecl *  D  )

static

Create a fake body for dispatch_sync.

Definition at line 592 of file BodyFarm.cpp.

References clang::CallExpr::Create(), D, clang::ValueDecl::getType(), isDispatchBlock(), and clang::VK_PRValue.

create_OSAtomicCompareAndSwap()

static Stmt* create_OSAtomicCompareAndSwap ( ASTContext &  C, const FunctionDecl *  D  )

static

Construct the If.

Definition at line 618 of file BodyFarm.cpp.

References clang::IfStmt::Create(), D, clang::Type::getAs(), clang::PointerType::getPointeeType(), clang::ValueDecl::getType(), clang::If, clang::Type::isBooleanType(), clang::Type::isIntegralType(), and clang::Ordinary.

create_std_move_forward()

static Stmt* create_std_move_forward ( ASTContext &  C, const FunctionDecl *  D  )

static

Create a fake body for 'std::move' or 'std::forward'.

This is just:

return static_cast<return_type>(param);

Definition at line 320 of file BodyFarm.cpp.

References clang::interp::Cast(), and D.

createObjCPropertyGetter()

static Stmt* createObjCPropertyGetter ( ASTContext &  Ctx, const ObjCMethodDecl *  MD  )

static

Definition at line 785 of file BodyFarm.cpp.

References findBackingIvar(), clang::ObjCMethodDecl::findPropertyDecl(), clang::ObjCMethodDecl::getClassInterface(), clang::ObjCIvarDecl::getContainingInterface(), clang::ObjCInterfaceDecl::getImplementation(), clang::QualType::getNonReferenceType(), clang::ObjCPropertyDecl::getPropertyAttributes(), clang::ObjCPropertyDecl::getPropertyIvarDecl(), clang::ObjCMethodDecl::getReturnType(), clang::ObjCMethodDecl::getSelector(), clang::ObjCMethodDecl::getSelfDecl(), clang::ValueDecl::getType(), clang::ObjCPropertyDecl::getType(), clang::ASTContext::hasSameUnqualifiedType(), clang::Type::isObjCLifetimeType(), clang::Type::isReferenceType(), clang::ObjCMethodDecl::isSynthesizedAccessorStub(), clang::QualType::isTriviallyCopyableType(), clang::ObjCPropertyAttribute::kind_weak, and clang::ObjCImplDecl::property_impls().

Referenced by clang::BodyFarm::getBody().

findBackingIvar()

static const ObjCIvarDecl* findBackingIvar ( const ObjCPropertyDecl *  Prop )

static

Definition at line 746 of file BodyFarm.cpp.

References clang::ObjCPropertyDecl::getPropertyIvarDecl(), and clang::ObjCPropertyDecl::isReadOnly().

Referenced by createObjCPropertyGetter().

isDispatchBlock()

static bool isDispatchBlock ( QualType  Ty )

static

Definition at line 37 of file BodyFarm.cpp.

References clang::Type::getAs(), clang::FunctionProtoType::getNumParams(), clang::BlockPointerType::getPointeeType(), clang::FunctionType::getReturnType(), and clang::Type::isVoidType().

Referenced by create_dispatch_once(), and create_dispatch_sync().