diff options
Diffstat (limited to 'clang/lib/AST/StmtCXX.cpp')
| -rw-r--r-- | clang/lib/AST/StmtCXX.cpp | 127 | 
1 files changed, 127 insertions, 0 deletions
| diff --git a/clang/lib/AST/StmtCXX.cpp b/clang/lib/AST/StmtCXX.cpp new file mode 100644 index 000000000000..060d090fc06a --- /dev/null +++ b/clang/lib/AST/StmtCXX.cpp @@ -0,0 +1,127 @@ +//===--- 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::ResultDecl] = Args.ResultDecl; +  SubStmts[CoroutineBodyStmt::ReturnStmt] = Args.ReturnStmt; +  SubStmts[CoroutineBodyStmt::ReturnStmtOnAllocFailure] = +      Args.ReturnStmtOnAllocFailure; +  std::copy(Args.ParamMoves.begin(), Args.ParamMoves.end(), +            const_cast<Stmt **>(getParamMoves().data())); +} | 
