376 lines
12 KiB
C++
376 lines
12 KiB
C++
//===--- StmtObjC.h - Classes for representing ObjC statements --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// \file
|
|
/// \brief Defines the Objective-C statement AST node classes.
|
|
|
|
#ifndef LLVM_CLANG_AST_STMTOBJC_H
|
|
#define LLVM_CLANG_AST_STMTOBJC_H
|
|
|
|
#include "clang/AST/Stmt.h"
|
|
#include "llvm/Support/Compiler.h"
|
|
|
|
namespace clang {
|
|
|
|
/// \brief Represents Objective-C's collection statement.
|
|
///
|
|
/// This is represented as 'for (element 'in' collection-expression)' stmt.
|
|
class ObjCForCollectionStmt : public Stmt {
|
|
enum { ELEM, COLLECTION, BODY, END_EXPR };
|
|
Stmt* SubExprs[END_EXPR]; // SubExprs[ELEM] is an expression or declstmt.
|
|
SourceLocation ForLoc;
|
|
SourceLocation RParenLoc;
|
|
public:
|
|
ObjCForCollectionStmt(Stmt *Elem, Expr *Collect, Stmt *Body,
|
|
SourceLocation FCL, SourceLocation RPL);
|
|
explicit ObjCForCollectionStmt(EmptyShell Empty) :
|
|
Stmt(ObjCForCollectionStmtClass, Empty) { }
|
|
|
|
Stmt *getElement() { return SubExprs[ELEM]; }
|
|
Expr *getCollection() {
|
|
return reinterpret_cast<Expr*>(SubExprs[COLLECTION]);
|
|
}
|
|
Stmt *getBody() { return SubExprs[BODY]; }
|
|
|
|
const Stmt *getElement() const { return SubExprs[ELEM]; }
|
|
const Expr *getCollection() const {
|
|
return reinterpret_cast<Expr*>(SubExprs[COLLECTION]);
|
|
}
|
|
const Stmt *getBody() const { return SubExprs[BODY]; }
|
|
|
|
void setElement(Stmt *S) { SubExprs[ELEM] = S; }
|
|
void setCollection(Expr *E) {
|
|
SubExprs[COLLECTION] = reinterpret_cast<Stmt*>(E);
|
|
}
|
|
void setBody(Stmt *S) { SubExprs[BODY] = S; }
|
|
|
|
SourceLocation getForLoc() const { return ForLoc; }
|
|
void setForLoc(SourceLocation Loc) { ForLoc = Loc; }
|
|
SourceLocation getRParenLoc() const { return RParenLoc; }
|
|
void setRParenLoc(SourceLocation Loc) { RParenLoc = Loc; }
|
|
|
|
SourceLocation getLocStart() const LLVM_READONLY { return ForLoc; }
|
|
SourceLocation getLocEnd() const LLVM_READONLY {
|
|
return SubExprs[BODY]->getLocEnd();
|
|
}
|
|
|
|
static bool classof(const Stmt *T) {
|
|
return T->getStmtClass() == ObjCForCollectionStmtClass;
|
|
}
|
|
|
|
// Iterators
|
|
child_range children() {
|
|
return child_range(&SubExprs[0], &SubExprs[END_EXPR]);
|
|
}
|
|
};
|
|
|
|
/// \brief Represents Objective-C's \@catch statement.
|
|
class ObjCAtCatchStmt : public Stmt {
|
|
private:
|
|
VarDecl *ExceptionDecl;
|
|
Stmt *Body;
|
|
SourceLocation AtCatchLoc, RParenLoc;
|
|
|
|
public:
|
|
ObjCAtCatchStmt(SourceLocation atCatchLoc, SourceLocation rparenloc,
|
|
VarDecl *catchVarDecl,
|
|
Stmt *atCatchStmt)
|
|
: Stmt(ObjCAtCatchStmtClass), ExceptionDecl(catchVarDecl),
|
|
Body(atCatchStmt), AtCatchLoc(atCatchLoc), RParenLoc(rparenloc) { }
|
|
|
|
explicit ObjCAtCatchStmt(EmptyShell Empty) :
|
|
Stmt(ObjCAtCatchStmtClass, Empty) { }
|
|
|
|
const Stmt *getCatchBody() const { return Body; }
|
|
Stmt *getCatchBody() { return Body; }
|
|
void setCatchBody(Stmt *S) { Body = S; }
|
|
|
|
const VarDecl *getCatchParamDecl() const {
|
|
return ExceptionDecl;
|
|
}
|
|
VarDecl *getCatchParamDecl() {
|
|
return ExceptionDecl;
|
|
}
|
|
void setCatchParamDecl(VarDecl *D) { ExceptionDecl = D; }
|
|
|
|
SourceLocation getAtCatchLoc() const { return AtCatchLoc; }
|
|
void setAtCatchLoc(SourceLocation Loc) { AtCatchLoc = Loc; }
|
|
SourceLocation getRParenLoc() const { return RParenLoc; }
|
|
void setRParenLoc(SourceLocation Loc) { RParenLoc = Loc; }
|
|
|
|
SourceLocation getLocStart() const LLVM_READONLY { return AtCatchLoc; }
|
|
SourceLocation getLocEnd() const LLVM_READONLY { return Body->getLocEnd(); }
|
|
|
|
bool hasEllipsis() const { return getCatchParamDecl() == nullptr; }
|
|
|
|
static bool classof(const Stmt *T) {
|
|
return T->getStmtClass() == ObjCAtCatchStmtClass;
|
|
}
|
|
|
|
child_range children() { return child_range(&Body, &Body + 1); }
|
|
};
|
|
|
|
/// \brief Represents Objective-C's \@finally statement
|
|
class ObjCAtFinallyStmt : public Stmt {
|
|
SourceLocation AtFinallyLoc;
|
|
Stmt *AtFinallyStmt;
|
|
|
|
public:
|
|
ObjCAtFinallyStmt(SourceLocation atFinallyLoc, Stmt *atFinallyStmt)
|
|
: Stmt(ObjCAtFinallyStmtClass), AtFinallyLoc(atFinallyLoc),
|
|
AtFinallyStmt(atFinallyStmt) {}
|
|
|
|
explicit ObjCAtFinallyStmt(EmptyShell Empty) :
|
|
Stmt(ObjCAtFinallyStmtClass, Empty) { }
|
|
|
|
const Stmt *getFinallyBody() const { return AtFinallyStmt; }
|
|
Stmt *getFinallyBody() { return AtFinallyStmt; }
|
|
void setFinallyBody(Stmt *S) { AtFinallyStmt = S; }
|
|
|
|
SourceLocation getLocStart() const LLVM_READONLY { return AtFinallyLoc; }
|
|
SourceLocation getLocEnd() const LLVM_READONLY {
|
|
return AtFinallyStmt->getLocEnd();
|
|
}
|
|
|
|
SourceLocation getAtFinallyLoc() const { return AtFinallyLoc; }
|
|
void setAtFinallyLoc(SourceLocation Loc) { AtFinallyLoc = Loc; }
|
|
|
|
static bool classof(const Stmt *T) {
|
|
return T->getStmtClass() == ObjCAtFinallyStmtClass;
|
|
}
|
|
|
|
child_range children() {
|
|
return child_range(&AtFinallyStmt, &AtFinallyStmt+1);
|
|
}
|
|
};
|
|
|
|
/// \brief Represents Objective-C's \@try ... \@catch ... \@finally statement.
|
|
class ObjCAtTryStmt : public Stmt {
|
|
private:
|
|
// The location of the @ in the \@try.
|
|
SourceLocation AtTryLoc;
|
|
|
|
// The number of catch blocks in this statement.
|
|
unsigned NumCatchStmts : 16;
|
|
|
|
// Whether this statement has a \@finally statement.
|
|
bool HasFinally : 1;
|
|
|
|
/// \brief Retrieve the statements that are stored after this \@try statement.
|
|
///
|
|
/// The order of the statements in memory follows the order in the source,
|
|
/// with the \@try body first, followed by the \@catch statements (if any)
|
|
/// and, finally, the \@finally (if it exists).
|
|
Stmt **getStmts() { return reinterpret_cast<Stmt **> (this + 1); }
|
|
const Stmt* const *getStmts() const {
|
|
return reinterpret_cast<const Stmt * const*> (this + 1);
|
|
}
|
|
|
|
ObjCAtTryStmt(SourceLocation atTryLoc, Stmt *atTryStmt,
|
|
Stmt **CatchStmts, unsigned NumCatchStmts,
|
|
Stmt *atFinallyStmt);
|
|
|
|
explicit ObjCAtTryStmt(EmptyShell Empty, unsigned NumCatchStmts,
|
|
bool HasFinally)
|
|
: Stmt(ObjCAtTryStmtClass, Empty), NumCatchStmts(NumCatchStmts),
|
|
HasFinally(HasFinally) { }
|
|
|
|
public:
|
|
static ObjCAtTryStmt *Create(const ASTContext &Context,
|
|
SourceLocation atTryLoc, Stmt *atTryStmt,
|
|
Stmt **CatchStmts, unsigned NumCatchStmts,
|
|
Stmt *atFinallyStmt);
|
|
static ObjCAtTryStmt *CreateEmpty(const ASTContext &Context,
|
|
unsigned NumCatchStmts, bool HasFinally);
|
|
|
|
/// \brief Retrieve the location of the @ in the \@try.
|
|
SourceLocation getAtTryLoc() const { return AtTryLoc; }
|
|
void setAtTryLoc(SourceLocation Loc) { AtTryLoc = Loc; }
|
|
|
|
/// \brief Retrieve the \@try body.
|
|
const Stmt *getTryBody() const { return getStmts()[0]; }
|
|
Stmt *getTryBody() { return getStmts()[0]; }
|
|
void setTryBody(Stmt *S) { getStmts()[0] = S; }
|
|
|
|
/// \brief Retrieve the number of \@catch statements in this try-catch-finally
|
|
/// block.
|
|
unsigned getNumCatchStmts() const { return NumCatchStmts; }
|
|
|
|
/// \brief Retrieve a \@catch statement.
|
|
const ObjCAtCatchStmt *getCatchStmt(unsigned I) const {
|
|
assert(I < NumCatchStmts && "Out-of-bounds @catch index");
|
|
return cast_or_null<ObjCAtCatchStmt>(getStmts()[I + 1]);
|
|
}
|
|
|
|
/// \brief Retrieve a \@catch statement.
|
|
ObjCAtCatchStmt *getCatchStmt(unsigned I) {
|
|
assert(I < NumCatchStmts && "Out-of-bounds @catch index");
|
|
return cast_or_null<ObjCAtCatchStmt>(getStmts()[I + 1]);
|
|
}
|
|
|
|
/// \brief Set a particular catch statement.
|
|
void setCatchStmt(unsigned I, ObjCAtCatchStmt *S) {
|
|
assert(I < NumCatchStmts && "Out-of-bounds @catch index");
|
|
getStmts()[I + 1] = S;
|
|
}
|
|
|
|
/// \brief Retrieve the \@finally statement, if any.
|
|
const ObjCAtFinallyStmt *getFinallyStmt() const {
|
|
if (!HasFinally)
|
|
return nullptr;
|
|
|
|
return cast_or_null<ObjCAtFinallyStmt>(getStmts()[1 + NumCatchStmts]);
|
|
}
|
|
ObjCAtFinallyStmt *getFinallyStmt() {
|
|
if (!HasFinally)
|
|
return nullptr;
|
|
|
|
return cast_or_null<ObjCAtFinallyStmt>(getStmts()[1 + NumCatchStmts]);
|
|
}
|
|
void setFinallyStmt(Stmt *S) {
|
|
assert(HasFinally && "@try does not have a @finally slot!");
|
|
getStmts()[1 + NumCatchStmts] = S;
|
|
}
|
|
|
|
SourceLocation getLocStart() const LLVM_READONLY { return AtTryLoc; }
|
|
SourceLocation getLocEnd() const LLVM_READONLY;
|
|
|
|
static bool classof(const Stmt *T) {
|
|
return T->getStmtClass() == ObjCAtTryStmtClass;
|
|
}
|
|
|
|
child_range children() {
|
|
return child_range(getStmts(),
|
|
getStmts() + 1 + NumCatchStmts + HasFinally);
|
|
}
|
|
};
|
|
|
|
/// \brief Represents Objective-C's \@synchronized statement.
|
|
///
|
|
/// Example:
|
|
/// \code
|
|
/// @synchronized (sem) {
|
|
/// do-something;
|
|
/// }
|
|
/// \endcode
|
|
class ObjCAtSynchronizedStmt : public Stmt {
|
|
private:
|
|
SourceLocation AtSynchronizedLoc;
|
|
enum { SYNC_EXPR, SYNC_BODY, END_EXPR };
|
|
Stmt* SubStmts[END_EXPR];
|
|
|
|
public:
|
|
ObjCAtSynchronizedStmt(SourceLocation atSynchronizedLoc, Stmt *synchExpr,
|
|
Stmt *synchBody)
|
|
: Stmt(ObjCAtSynchronizedStmtClass) {
|
|
SubStmts[SYNC_EXPR] = synchExpr;
|
|
SubStmts[SYNC_BODY] = synchBody;
|
|
AtSynchronizedLoc = atSynchronizedLoc;
|
|
}
|
|
explicit ObjCAtSynchronizedStmt(EmptyShell Empty) :
|
|
Stmt(ObjCAtSynchronizedStmtClass, Empty) { }
|
|
|
|
SourceLocation getAtSynchronizedLoc() const { return AtSynchronizedLoc; }
|
|
void setAtSynchronizedLoc(SourceLocation Loc) { AtSynchronizedLoc = Loc; }
|
|
|
|
const CompoundStmt *getSynchBody() const {
|
|
return reinterpret_cast<CompoundStmt*>(SubStmts[SYNC_BODY]);
|
|
}
|
|
CompoundStmt *getSynchBody() {
|
|
return reinterpret_cast<CompoundStmt*>(SubStmts[SYNC_BODY]);
|
|
}
|
|
void setSynchBody(Stmt *S) { SubStmts[SYNC_BODY] = S; }
|
|
|
|
const Expr *getSynchExpr() const {
|
|
return reinterpret_cast<Expr*>(SubStmts[SYNC_EXPR]);
|
|
}
|
|
Expr *getSynchExpr() {
|
|
return reinterpret_cast<Expr*>(SubStmts[SYNC_EXPR]);
|
|
}
|
|
void setSynchExpr(Stmt *S) { SubStmts[SYNC_EXPR] = S; }
|
|
|
|
SourceLocation getLocStart() const LLVM_READONLY { return AtSynchronizedLoc; }
|
|
SourceLocation getLocEnd() const LLVM_READONLY {
|
|
return getSynchBody()->getLocEnd();
|
|
}
|
|
|
|
static bool classof(const Stmt *T) {
|
|
return T->getStmtClass() == ObjCAtSynchronizedStmtClass;
|
|
}
|
|
|
|
child_range children() {
|
|
return child_range(&SubStmts[0], &SubStmts[0]+END_EXPR);
|
|
}
|
|
};
|
|
|
|
/// \brief Represents Objective-C's \@throw statement.
|
|
class ObjCAtThrowStmt : public Stmt {
|
|
SourceLocation AtThrowLoc;
|
|
Stmt *Throw;
|
|
|
|
public:
|
|
ObjCAtThrowStmt(SourceLocation atThrowLoc, Stmt *throwExpr)
|
|
: Stmt(ObjCAtThrowStmtClass), Throw(throwExpr) {
|
|
AtThrowLoc = atThrowLoc;
|
|
}
|
|
explicit ObjCAtThrowStmt(EmptyShell Empty) :
|
|
Stmt(ObjCAtThrowStmtClass, Empty) { }
|
|
|
|
const Expr *getThrowExpr() const { return reinterpret_cast<Expr*>(Throw); }
|
|
Expr *getThrowExpr() { return reinterpret_cast<Expr*>(Throw); }
|
|
void setThrowExpr(Stmt *S) { Throw = S; }
|
|
|
|
SourceLocation getThrowLoc() const LLVM_READONLY { return AtThrowLoc; }
|
|
void setThrowLoc(SourceLocation Loc) { AtThrowLoc = Loc; }
|
|
|
|
SourceLocation getLocStart() const LLVM_READONLY { return AtThrowLoc; }
|
|
SourceLocation getLocEnd() const LLVM_READONLY {
|
|
return Throw ? Throw->getLocEnd() : AtThrowLoc;
|
|
}
|
|
|
|
static bool classof(const Stmt *T) {
|
|
return T->getStmtClass() == ObjCAtThrowStmtClass;
|
|
}
|
|
|
|
child_range children() { return child_range(&Throw, &Throw+1); }
|
|
};
|
|
|
|
/// \brief Represents Objective-C's \@autoreleasepool Statement
|
|
class ObjCAutoreleasePoolStmt : public Stmt {
|
|
SourceLocation AtLoc;
|
|
Stmt *SubStmt;
|
|
|
|
public:
|
|
ObjCAutoreleasePoolStmt(SourceLocation atLoc, Stmt *subStmt)
|
|
: Stmt(ObjCAutoreleasePoolStmtClass), AtLoc(atLoc), SubStmt(subStmt) {}
|
|
|
|
explicit ObjCAutoreleasePoolStmt(EmptyShell Empty) :
|
|
Stmt(ObjCAutoreleasePoolStmtClass, Empty) { }
|
|
|
|
const Stmt *getSubStmt() const { return SubStmt; }
|
|
Stmt *getSubStmt() { return SubStmt; }
|
|
void setSubStmt(Stmt *S) { SubStmt = S; }
|
|
|
|
SourceLocation getLocStart() const LLVM_READONLY { return AtLoc; }
|
|
SourceLocation getLocEnd() const LLVM_READONLY { return SubStmt->getLocEnd();}
|
|
|
|
SourceLocation getAtLoc() const { return AtLoc; }
|
|
void setAtLoc(SourceLocation Loc) { AtLoc = Loc; }
|
|
|
|
static bool classof(const Stmt *T) {
|
|
return T->getStmtClass() == ObjCAutoreleasePoolStmtClass;
|
|
}
|
|
|
|
child_range children() { return child_range(&SubStmt, &SubStmt + 1); }
|
|
};
|
|
|
|
} // end namespace clang
|
|
|
|
#endif
|