llvm/flang/lib/semantics/attr.cc
Tim Keith 0c575ed548 [flang] Implement writing of .mod files.
Module file writing is implemented in mod-file.cc. They need to be
written after all semantic checking. Until then, for testing, write
them out whenever names are resolved.

There is a header comment in the .mod files but it is mostly a
placeholder until we can read them in and do something with it.

Rename `Symbol::details<D>` to `Symbol::get<D>`. This asserts that the
details of the symbol match D and returns that type. But we need a way
to access the details as a variant as well (not just one of its types).
`details()` is the best name for that, especially as we already have
`set_details()`. Renaming the old `details` to `get` also better matches
`has` which is used to check which variant is present.

Original-commit: flang-compiler/f18@8d14be1a16
Reviewed-on: https://github.com/flang-compiler/f18/pull/126
Tree-same-pre-rewrite: false
2018-07-16 16:23:18 -07:00

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1.6 KiB
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// Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "attr.h"
#include "../common/idioms.h"
#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;
}
} // namespace Fortran::semantics