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//===--- StmtCXX.cpp - Classes for representing C++ statements ------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the subclesses of Stmt class declared in StmtCXX.h
//
//===----------------------------------------------------------------------===//
#include "clang/AST/StmtCXX.h"
#include "clang/AST/ASTContext.h"
using namespace clang;
QualType CXXCatchStmt::getCaughtType() const {
if (ExceptionDecl)
return ExceptionDecl->getType();
return QualType();
}
CXXTryStmt *CXXTryStmt::Create(const ASTContext &C, SourceLocation tryLoc,
Stmt *tryBlock, ArrayRef<Stmt *> handlers) {
const size_t Size = totalSizeToAlloc<Stmt *>(handlers.size() + 1);
void *Mem = C.Allocate(Size, alignof(CXXTryStmt));
return new (Mem) CXXTryStmt(tryLoc, tryBlock, handlers);
}
CXXTryStmt *CXXTryStmt::Create(const ASTContext &C, EmptyShell Empty,
unsigned numHandlers) {
const size_t Size = totalSizeToAlloc<Stmt *>(numHandlers + 1);
void *Mem = C.Allocate(Size, alignof(CXXTryStmt));
return new (Mem) CXXTryStmt(Empty, numHandlers);
}
CXXTryStmt::CXXTryStmt(SourceLocation tryLoc, Stmt *tryBlock,
ArrayRef<Stmt *> handlers)
: Stmt(CXXTryStmtClass), TryLoc(tryLoc), NumHandlers(handlers.size()) {
Stmt **Stmts = getStmts();
Stmts[0] = tryBlock;
std::copy(handlers.begin(), handlers.end(), Stmts + 1);
}
CXXForRangeStmt::CXXForRangeStmt(Stmt *Init, DeclStmt *Range,
DeclStmt *BeginStmt, DeclStmt *EndStmt,
Expr *Cond, Expr *Inc, DeclStmt *LoopVar,
Stmt *Body, SourceLocation FL,
SourceLocation CAL, SourceLocation CL,
SourceLocation RPL)
: Stmt(CXXForRangeStmtClass), ForLoc(FL), CoawaitLoc(CAL), ColonLoc(CL),
RParenLoc(RPL) {
SubExprs[INIT] = Init;
SubExprs[RANGE] = Range;
SubExprs[BEGINSTMT] = BeginStmt;
SubExprs[ENDSTMT] = EndStmt;
SubExprs[COND] = Cond;
SubExprs[INC] = Inc;
SubExprs[LOOPVAR] = LoopVar;
SubExprs[BODY] = Body;
}
Expr *CXXForRangeStmt::getRangeInit() {
DeclStmt *RangeStmt = getRangeStmt();
VarDecl *RangeDecl = dyn_cast_or_null<VarDecl>(RangeStmt->getSingleDecl());
assert(RangeDecl && "for-range should have a single var decl");
return RangeDecl->getInit();
}
const Expr *CXXForRangeStmt::getRangeInit() const {
return const_cast<CXXForRangeStmt *>(this)->getRangeInit();
}
VarDecl *CXXForRangeStmt::getLoopVariable() {
Decl *LV = cast<DeclStmt>(getLoopVarStmt())->getSingleDecl();
assert(LV && "No loop variable in CXXForRangeStmt");
return cast<VarDecl>(LV);
}
const VarDecl *CXXForRangeStmt::getLoopVariable() const {
return const_cast<CXXForRangeStmt *>(this)->getLoopVariable();
}
CoroutineBodyStmt *CoroutineBodyStmt::Create(
const ASTContext &C, CoroutineBodyStmt::CtorArgs const &Args) {
std::size_t Size = totalSizeToAlloc<Stmt *>(
CoroutineBodyStmt::FirstParamMove + Args.ParamMoves.size());
void *Mem = C.Allocate(Size, alignof(CoroutineBodyStmt));
return new (Mem) CoroutineBodyStmt(Args);
}
CoroutineBodyStmt *CoroutineBodyStmt::Create(const ASTContext &C, EmptyShell,
unsigned NumParams) {
std::size_t Size = totalSizeToAlloc<Stmt *>(
CoroutineBodyStmt::FirstParamMove + NumParams);
void *Mem = C.Allocate(Size, alignof(CoroutineBodyStmt));
auto *Result = new (Mem) CoroutineBodyStmt(CtorArgs());
Result->NumParams = NumParams;
auto *ParamBegin = Result->getStoredStmts() + SubStmt::FirstParamMove;
std::uninitialized_fill(ParamBegin, ParamBegin + NumParams,
static_cast<Stmt *>(nullptr));
return Result;
}
CoroutineBodyStmt::CoroutineBodyStmt(CoroutineBodyStmt::CtorArgs const &Args)
: Stmt(CoroutineBodyStmtClass), NumParams(Args.ParamMoves.size()) {
Stmt **SubStmts = getStoredStmts();
SubStmts[CoroutineBodyStmt::Body] = Args.Body;
SubStmts[CoroutineBodyStmt::Promise] = Args.Promise;
SubStmts[CoroutineBodyStmt::InitSuspend] = Args.InitialSuspend;
SubStmts[CoroutineBodyStmt::FinalSuspend] = Args.FinalSuspend;
SubStmts[CoroutineBodyStmt::OnException] = Args.OnException;
SubStmts[CoroutineBodyStmt::OnFallthrough] = Args.OnFallthrough;
SubStmts[CoroutineBodyStmt::Allocate] = Args.Allocate;
SubStmts[CoroutineBodyStmt::Deallocate] = Args.Deallocate;
SubStmts[CoroutineBodyStmt::ReturnValue] = Args.ReturnValue;
SubStmts[CoroutineBodyStmt::ReturnStmt] = Args.ReturnStmt;
SubStmts[CoroutineBodyStmt::ReturnStmtOnAllocFailure] =
Args.ReturnStmtOnAllocFailure;
std::copy(Args.ParamMoves.begin(), Args.ParamMoves.end(),
const_cast<Stmt **>(getParamMoves().data()));
}
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