path: root/include/clang/AST/Stmt.h

//===--- Stmt.h - Classes for representing statements -----------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This file defines the Stmt interface and subclasses.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_AST_STMT_H
#define LLVM_CLANG_AST_STMT_H

#include "llvm/Support/Casting.h"
#include "llvm/Support/raw_ostream.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/AST/PrettyPrinter.h"
#include "clang/AST/StmtIterator.h"
#include "clang/AST/DeclGroup.h"
#include "llvm/ADT/SmallVector.h"
#include "clang/AST/ASTContext.h"
#include <string>
using llvm::dyn_cast_or_null;

namespace llvm {
  class FoldingSetNodeID;
}

namespace clang {
  class ASTContext;
  class Expr;
  class Decl;
  class ParmVarDecl;
  class QualType;
  class IdentifierInfo;
  class SourceManager;
  class StringLiteral;
  class SwitchStmt;

  //===----------------------------------------------------------------------===//
  // ExprIterator - Iterators for iterating over Stmt* arrays that contain
  //  only Expr*.  This is needed because AST nodes use Stmt* arrays to store
  //  references to children (to be compatible with StmtIterator).
  //===----------------------------------------------------------------------===//

  class Stmt;
  class Expr;

  class ExprIterator {
    Stmt** I;
  public:
    ExprIterator(Stmt** i) : I(i) {}
    ExprIterator() : I(0) {}
    ExprIterator& operator++() { ++I; return *this; }
    ExprIterator operator-(size_t i) { return I-i; }
    ExprIterator operator+(size_t i) { return I+i; }
    Expr* operator[](size_t idx);
    // FIXME: Verify that this will correctly return a signed distance.
    signed operator-(const ExprIterator& R) const { return I - R.I; }
    Expr* operator*() const;
    Expr* operator->() const;
    bool operator==(const ExprIterator& R) const { return I == R.I; }
    bool operator!=(const ExprIterator& R) const { return I != R.I; }
    bool operator>(const ExprIterator& R) const { return I > R.I; }
    bool operator>=(const ExprIterator& R) const { return I >= R.I; }
  };

  class ConstExprIterator {
    Stmt* const * I;
  public:
    ConstExprIterator(Stmt* const*