| //===--- AttributeList.h ----------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by Steve Naroff and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the AttributeList class interface. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_ATTRLIST_H |
| #define LLVM_CLANG_ATTRLIST_H |
| |
| #include "clang/Parse/Action.h" |
| #include <cassert> |
| |
| namespace clang { |
| |
| /// AttributeList - Represents GCC's __attribute__ declaration. There are |
| /// 4 forms of this construct...they are: |
| /// |
| /// 1: __attribute__(( const )). ParmName/Args/NumArgs will all be unused. |
| /// 2: __attribute__(( mode(byte) )). ParmName used, Args/NumArgs unused. |
| /// 3: __attribute__(( format(printf, 1, 2) )). ParmName/Args/NumArgs all used. |
| /// 4: __attribute__(( aligned(16) )). ParmName is unused, Args/Num used. |
| /// |
| class AttributeList { |
| IdentifierInfo *AttrName; |
| SourceLocation AttrLoc; |
| IdentifierInfo *ParmName; |
| SourceLocation ParmLoc; |
| Action::ExprTy **Args; |
| unsigned NumArgs; |
| AttributeList *Next; |
| public: |
| AttributeList(IdentifierInfo *AttrName, SourceLocation AttrLoc, |
| IdentifierInfo *ParmName, SourceLocation ParmLoc, |
| Action::ExprTy **args, unsigned numargs, AttributeList *Next); |
| ~AttributeList() { |
| if (Args) { |
| // FIXME: before we delete the vector, we need to make sure the Expr's |
| // have been deleted. Since Action::ExprTy is "void", we are dependent |
| // on the actions module for actually freeing the memory. The specific |
| // hooks are ParseDeclarator, ParseTypeName, ParseParamDeclaratorType, |
| // ParseField, ParseTag. Once these routines have freed the expression, |
| // they should zero out the Args slot (to indicate the memory has been |
| // freed). If any element of the vector is non-null, we should assert. |
| delete [] Args; |
| } |
| if (Next) |
| delete Next; |
| } |
| |
| IdentifierInfo *getAttributeName() const { return AttrName; } |
| SourceLocation getAttributeLoc() const { return AttrLoc; } |
| IdentifierInfo *getParameterName() const { return ParmName; } |
| |
| AttributeList *getNext() const { return Next; } |
| void setNext(AttributeList *N) { Next = N; } |
| |
| void addAttributeList(AttributeList *alist) { |
| assert((alist != 0) && "addAttributeList(): alist is null"); |
| AttributeList *next = this, *prev; |
| do { |
| prev = next; |
| next = next->getNext(); |
| } while (next); |
| prev->setNext(alist); |
| } |
| |
| /// getNumArgs - Return the number of actual arguments to this attribute. |
| unsigned getNumArgs() const { return NumArgs; } |
| |
| /// getArg - Return the specified argument. |
| Action::ExprTy *getArg(unsigned Arg) const { |
| assert(Arg < NumArgs && "Arg access out of range!"); |
| return Args[Arg]; |
| } |
| }; |
| |
| } // end namespace clang |
| |
| #endif |