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- /* Code dealing with "using" directives for GDB.
- Copyright (C) 2003-2022 Free Software Foundation, Inc.
- This file is part of GDB.
- This program 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 of the License, or
- (at your option) any later version.
- This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
- #ifndef NAMESPACE_H
- #define NAMESPACE_H
- #include "gdbsupport/gdb_vecs.h"
- #include "gdbsupport/gdb_obstack.h"
- /* This struct is designed to store data from using directives. It
- says that names from namespace IMPORT_SRC should be visible within
- namespace IMPORT_DEST. These form a linked list; NEXT is the next
- element of the list. If the imported namespace or declaration has
- been aliased within the IMPORT_DEST namespace, ALIAS is set to a
- string representing the alias. Otherwise, ALIAS is NULL.
- DECLARATION is the name of the imported declaration, if this import
- statement represents one. Otherwise DECLARATION is NULL and this
- import statement represents a namespace.
- C++: using namespace A;
- Fortran: use A
- import_src = "A"
- import_dest = local scope of the import statement even such as ""
- alias = NULL
- declaration = NULL
- excludes = NULL
- C++: using A::x;
- Fortran: use A, only: x
- import_src = "A"
- import_dest = local scope of the import statement even such as ""
- alias = NULL
- declaration = "x"
- excludes = NULL
- The declaration will get imported as import_dest::x.
- C++ has no way to import all names except those listed ones.
- Fortran: use A, localname => x
- import_src = "A"
- import_dest = local scope of the import statement even such as ""
- alias = "localname"
- declaration = "x"
- excludes = NULL
- +
- import_src = "A"
- import_dest = local scope of the import statement even such as ""
- alias = NULL
- declaration = NULL
- excludes = ["x"]
- All the entries of A get imported except of "x". "x" gets imported as
- "localname". "x" is not defined as a local name by this statement.
- C++: namespace LOCALNS = A;
- Fortran has no way to address non-local namespace/module.
- import_src = "A"
- import_dest = local scope of the import statement even such as ""
- alias = "LOCALNS"
- declaration = NULL
- excludes = NULL
- The namespace will get imported as the import_dest::LOCALNS
- namespace.
- C++ cannot express it, it would be something like: using localname
- = A::x;
- Fortran: use A, only localname => x
- import_src = "A"
- import_dest = local scope of the import statement even such as ""
- alias = "localname"
- declaration = "x"
- excludes = NULL
- The declaration will get imported as localname or
- `import_dest`localname. */
- struct using_direct
- {
- const char *import_src;
- const char *import_dest;
- const char *alias;
- const char *declaration;
- struct using_direct *next;
- /* Used during import search to temporarily mark this node as
- searched. */
- int searched;
- /* USING_DIRECT has variable allocation size according to the number of
- EXCLUDES entries, the last entry is NULL. */
- const char *excludes[1];
- };
- extern void add_using_directive (struct using_direct **using_directives,
- const char *dest,
- const char *src,
- const char *alias,
- const char *declaration,
- const std::vector<const char *> &excludes,
- int copy_names,
- struct obstack *obstack);
- #endif /* NAMESPACE_H */
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