1 //===--- StmtCXX.cpp - Classes for representing C++ statements ------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file implements the subclesses of Stmt class declared in StmtCXX.h 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "clang/AST/StmtCXX.h" 15 16 #include "clang/AST/ASTContext.h" 17 18 using namespace clang; 19 20 QualType CXXCatchStmt::getCaughtType() const { 21 if (ExceptionDecl) 22 return ExceptionDecl->getType(); 23 return QualType(); 24 } 25 26 CXXTryStmt *CXXTryStmt::Create(const ASTContext &C, SourceLocation tryLoc, 27 Stmt *tryBlock, ArrayRef<Stmt *> handlers) { 28 std::size_t Size = sizeof(CXXTryStmt); 29 Size += ((handlers.size() + 1) * sizeof(Stmt *)); 30 31 void *Mem = C.Allocate(Size, llvm::alignOf<CXXTryStmt>()); 32 return new (Mem) CXXTryStmt(tryLoc, tryBlock, handlers); 33 } 34 35 CXXTryStmt *CXXTryStmt::Create(const ASTContext &C, EmptyShell Empty, 36 unsigned numHandlers) { 37 std::size_t Size = sizeof(CXXTryStmt); 38 Size += ((numHandlers + 1) * sizeof(Stmt *)); 39 40 void *Mem = C.Allocate(Size, llvm::alignOf<CXXTryStmt>()); 41 return new (Mem) CXXTryStmt(Empty, numHandlers); 42 } 43 44 CXXTryStmt::CXXTryStmt(SourceLocation tryLoc, Stmt *tryBlock, 45 ArrayRef<Stmt *> handlers) 46 : Stmt(CXXTryStmtClass), TryLoc(tryLoc), NumHandlers(handlers.size()) { 47 Stmt **Stmts = reinterpret_cast<Stmt **>(this + 1); 48 Stmts[0] = tryBlock; 49 std::copy(handlers.begin(), handlers.end(), Stmts + 1); 50 } 51 52 CXXForRangeStmt::CXXForRangeStmt(DeclStmt *Range, 53 DeclStmt *BeginStmt, DeclStmt *EndStmt, 54 Expr *Cond, Expr *Inc, DeclStmt *LoopVar, 55 Stmt *Body, SourceLocation FL, 56 SourceLocation CAL, SourceLocation CL, 57 SourceLocation RPL) 58 : Stmt(CXXForRangeStmtClass), ForLoc(FL), CoawaitLoc(CAL), ColonLoc(CL), 59 RParenLoc(RPL) { 60 SubExprs[RANGE] = Range; 61 SubExprs[BEGINSTMT] = BeginStmt; 62 SubExprs[ENDSTMT] = EndStmt; 63 SubExprs[COND] = Cond; 64 SubExprs[INC] = Inc; 65 SubExprs[LOOPVAR] = LoopVar; 66 SubExprs[BODY] = Body; 67 } 68 69 Expr *CXXForRangeStmt::getRangeInit() { 70 DeclStmt *RangeStmt = getRangeStmt(); 71 VarDecl *RangeDecl = dyn_cast_or_null<VarDecl>(RangeStmt->getSingleDecl()); 72 assert(RangeDecl && "for-range should have a single var decl"); 73 return RangeDecl->getInit(); 74 } 75 76 const Expr *CXXForRangeStmt::getRangeInit() const { 77 return const_cast<CXXForRangeStmt *>(this)->getRangeInit(); 78 } 79 80 VarDecl *CXXForRangeStmt::getLoopVariable() { 81 Decl *LV = cast<DeclStmt>(getLoopVarStmt())->getSingleDecl(); 82 assert(LV && "No loop variable in CXXForRangeStmt"); 83 return cast<VarDecl>(LV); 84 } 85 86 const VarDecl *CXXForRangeStmt::getLoopVariable() const { 87 return const_cast<CXXForRangeStmt *>(this)->getLoopVariable(); 88 } 89
