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Diffstat (limited to 'gdb/namespace.h')
| -rw-r--r-- | gdb/namespace.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/gdb/namespace.h b/gdb/namespace.h new file mode 100644 index 0000000..aa73f4a --- /dev/null +++ b/gdb/namespace.h @@ -0,0 +1,118 @@ +/* Code dealing with "using" directives for GDB. + Copyright (C) 2003-2015 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 "vec.h" +#include "gdb_vecs.h" +#include "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, + VEC (const_char_ptr) *excludes, + int copy_names, + struct obstack *obstack); + +#endif /* NAMESPACE_H */ |