llvm-project/flang/lib/semantics/attr.cpp

52 lines
1.3 KiB
C++

//===-- lib/semantics/attr.cpp --------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "flang/semantics/attr.h"
#include "flang/common/idioms.h"
#include <ostream>
#include <stddef.h>
namespace Fortran::semantics {
void Attrs::CheckValid(const Attrs &allowed) const {
if (!allowed.HasAll(*this)) {
common::die("invalid attribute");
}
}
std::string AttrToString(Attr attr) {
switch (attr) {
case Attr::BIND_C: return "BIND(C)";
case Attr::INTENT_IN: return "INTENT(IN)";
case Attr::INTENT_INOUT: return "INTENT(INOUT)";
case Attr::INTENT_OUT: return "INTENT(OUT)";
default: return EnumToString(attr);
}
}
std::ostream &operator<<(std::ostream &o, Attr attr) {
return o << AttrToString(attr);
}
std::ostream &operator<<(std::ostream &o, const Attrs &attrs) {
std::size_t n{attrs.count()};
std::size_t seen{0};
for (std::size_t j{0}; seen < n; ++j) {
Attr attr{static_cast<Attr>(j)};
if (attrs.test(attr)) {
if (seen > 0) {
o << ", ";
}
o << attr;
++seen;
}
}
return o;
}
}