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/* This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "rust-parse.h"
#include "rust-linemap.h"
#include "rust-diagnostics.h"
#if 0
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "target.h"
#include "tree.h"
#include "tree-iterator.h"
#include "input.h"
#include "diagnostic.h"
#include "stringpool.h"
#include "cgraph.h"
#include "gimplify.h"
#include "gimple-expr.h"
#include "convert.h"
#include "print-tree.h"
#include "stor-layout.h"
#include "fold-const.h"
/* order: config, system, coretypes, target, tree, tree-iterator, input, diagnostic, stringpool,
* cgraph, gimplify, gimple-expr, convert, print-tree, stor-layout, fold-const */
// probably don't need all these
#endif
// maybe put these back in if compiling no longer works
/* TODO: move non-essential stuff back here from rust-parse-impl.h after
* confirming that it works */
namespace Rust {
std::string
extract_module_path (const AST::AttrVec &inner_attrs,
const AST::AttrVec &outer_attrs, const std::string &name)
{
AST::Attribute path_attr = AST::Attribute::create_empty ();
for (const auto &attr : inner_attrs)
{
if (attr.get_path ().as_string () == "path")
{
path_attr = attr;
break;
}
}
// Here, we found a path attribute, but it has no associated string. This is
// invalid
if (!path_attr.is_empty () && !path_attr.has_attr_input ())
{
rust_error_at (
path_attr.get_locus (),
// Split the format string so that -Wformat-diag does not complain...
"path attributes must contain a filename: '%s'", "#![path = \"file\"]");
return name;
}
for (const auto &attr : outer_attrs)
{
if (attr.get_path ().as_string () == "path")
{
path_attr = attr;
break;
}
}
// We didn't find a path attribute. This is not an error, there simply isn't
// one present
if (path_attr.is_empty ())
return name;
// Here, we found a path attribute, but it has no associated string. This is
// invalid
if (!path_attr.has_attr_input ())
{
rust_error_at (
path_attr.get_locus (),
// Split the format string so that -Wformat-diag does not complain...
"path attributes must contain a filename: '%s'", "#[path = \"file\"]");
return name;
}
auto path_value = path_attr.get_attr_input ().as_string ();
// At this point, the 'path' is of the following format: '= "<file.rs>"'
// We need to remove the equal sign and only keep the actual filename.
// In order to do this, we can simply go through the string until we find
// a character that is not an equal sign or whitespace
auto filename_begin = path_value.find_first_not_of ("=\t ");
auto path = path_value.substr (filename_begin);
// On windows, the path might mix '/' and '\' separators. Replace the
// UNIX-like separators by MSDOS separators to make sure the path will resolve
// properly.
//
// Source: rustc compiler
// (https://github.com/rust-lang/rust/blob/9863bf51a52b8e61bcad312f81b5193d53099f9f/compiler/rustc_expand/src/module.rs#L174)
#if defined(HAVE_DOS_BASED_FILE_SYSTEM)
path.replace ('/', '\\');
#endif /* HAVE_DOS_BASED_FILE_SYSTEM */
return path;
}
} // namespace Rust
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