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//===--- AttributeList.h ----------------------------------------*- 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 AttributeList class interface.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_ATTRLIST_H
#define LLVM_CLANG_ATTRLIST_H
#include "clang/Parse/Ownership.h"
#include "clang/Basic/SourceLocation.h"
#include <cassert>
namespace clang {
class IdentifierInfo;
class Action;
/// 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;
ActionBase::ExprTy **Args;
unsigned NumArgs;
AttributeList *Next;
bool DeclspecAttribute;
AttributeList(const AttributeList &); // DO NOT IMPLEMENT
void operator=(const AttributeList &); // DO NOT IMPLEMENT
public:
AttributeList(IdentifierInfo *AttrName, SourceLocation AttrLoc,
IdentifierInfo *ParmName, SourceLocation ParmLoc,
ActionBase::ExprTy **args, unsigned numargs,
AttributeList *Next, bool declspec = false);
~AttributeList();
enum Kind { // Please keep this list alphabetized.
AT_IBOutlet, // Clang-specific.
AT_address_space,
AT_alias,
AT_aligned,
AT_always_inline,
AT_analyzer_noreturn,
AT_annotate,
AT_blocks,
AT_cdecl,
AT_cleanup,
AT_const,
AT_constructor,
AT_deprecated,
AT_destructor,
AT_dllexport,
AT_dllimport,
AT_ext_vector_type,
AT_fastcall,
AT_format,
AT_format_arg,
AT_gnu_inline,
AT_malloc,
AT_mode,
AT_nodebug,
AT_noinline,
AT_no_instrument_function,
AT_nonnull,
AT_noreturn,
AT_nothrow,
AT_nsobject,
AT_objc_exception,
AT_cf_returns_retained, // Clang-specific.
AT_ns_returns_retained, // Clang-specific.
AT_objc_gc,
AT_overloadable, // Clang-specific.
AT_packed,
AT_pure,
AT_regparm,
AT_section,
AT_sentinel,
AT_stdcall,
AT_transparent_union,
AT_unavailable,
AT_unused,
AT_used,
AT_vector_size,
AT_visibility,
AT_warn_unused_result,
AT_weak,
AT_weak_import,
AT_reqd_wg_size,
IgnoredAttribute,
UnknownAttribute
};
IdentifierInfo *getName() const { return AttrName; }
SourceLocation getLoc() const { return AttrLoc; }
IdentifierInfo *getParameterName() const { return ParmName; }
bool isDeclspecAttribute() const { return DeclspecAttribute; }
Kind getKind() const { return getKind(getName()); }
static Kind getKind(const IdentifierInfo *Name);
AttributeList *getNext() const { return Next; }
void setNext(AttributeList *N) { Next = N; }
/// getNumArgs - Return the number of actual arguments to this attribute.
unsigned getNumArgs() const { return NumArgs; }
/// getArg - Return the specified argument.
ActionBase::ExprTy *getArg(unsigned Arg) const {
assert(Arg < NumArgs && "Arg access out of range!");
return Args[Arg];
}
class arg_iterator {
ActionBase::ExprTy** X;
unsigned Idx;
public:
arg_iterator(ActionBase::ExprTy** x, unsigned idx) : X(x), Idx(idx) {}
arg_iterator& operator++() {
++Idx;
return *this;
}
bool operator==(const arg_iterator& I) const {
assert (X == I.X &&
"compared arg_iterators are for different argument lists");
return Idx == I.Idx;
}
bool operator!=(const arg_iterator& I) const {
return !operator==(I);
}
ActionBase::ExprTy* operator*() const {
return X[Idx];
}
unsigned getArgNum() const {
return Idx+1;
}
};
arg_iterator arg_begin() const {
return arg_iterator(Args, 0);
}
arg_iterator arg_end() const {
return arg_iterator(Args, NumArgs);
}
};
/// addAttributeLists - Add two AttributeLists together
/// The right-hand list is appended to the left-hand list, if any
/// A pointer to the joined list is returned.
/// Note: the lists are not left unmodified.
inline AttributeList* addAttributeLists (AttributeList *Left,
AttributeList *Right) {
if (!Left)
return Right;
AttributeList *next = Left, *prev;
do {
prev = next;
next = next->getNext();
} while (next);
prev->setNext(Right);
return Left;
}
} // end namespace clang
#endif
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