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
18using namespace clang;
19
20QualType CXXCatchStmt::getCaughtType() const {
21  if (ExceptionDecl)
22    return ExceptionDecl->getType();
23  return QualType();
24}
25
26CXXTryStmt *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
35CXXTryStmt *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
44CXXTryStmt::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
52CXXForRangeStmt::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
69Expr *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
76const Expr *CXXForRangeStmt::getRangeInit() const {
77  return const_cast<CXXForRangeStmt *>(this)->getRangeInit();
78}
79
80VarDecl *CXXForRangeStmt::getLoopVariable() {
81  Decl *LV = cast<DeclStmt>(getLoopVarStmt())->getSingleDecl();
82  assert(LV && "No loop variable in CXXForRangeStmt");
83  return cast<VarDecl>(LV);
84}
85
86const VarDecl *CXXForRangeStmt::getLoopVariable() const {
87  return const_cast<CXXForRangeStmt *>(this)->getLoopVariable();
88}
89