gccrs: Rename libproc_macro to libproc_macro_internal

The name was a bit misleading since libproc_macro is a rust library that
should we should be able to link against some rust code. This cpp
library was the layer below the libproc_macro library, the "real" gcc
libproc_macro act as a translation layer for the internal library.

gcc/rust/ChangeLog:

	* expand/rust-macro-expand.h: Change include directive with the
	new name.
	* expand/rust-proc-macro.h (RUST_PROC_MACRO_H): Likewise.
	* util/rust-hir-map.h: Likewise.
	* util/rust-token-converter.h: Likewise.
	* util/rust-token-converter.cc: Remove useless include
	directive.
	* Make-lang.in: Rename library.

libgrust/ChangeLog:

	* Makefile.am: Change library name.
	* Makefile.in: Likewise.
	* configure.ac: Likewise.
	* configure: Regenerate.
	* libproc_macro/Makefile.am: Moved to...
	* libproc_macro_internal/Makefile.am: ...here.
	* libproc_macro/Makefile.in: Moved to...
	* libproc_macro_internal/Makefile.in: ...here.
	* libproc_macro/bridge.h: Moved to...
	* libproc_macro_internal/bridge.h: ...here.
	* libproc_macro/ffistring.cc: Moved to...
	* libproc_macro_internal/ffistring.cc: ...here.
	* libproc_macro/ffistring.h: Moved to...
	* libproc_macro_internal/ffistring.h: ...here.
	* libproc_macro/group.cc: Moved to...
	* libproc_macro_internal/group.cc: ...here.
	* libproc_macro/group.h: Moved to...
	* libproc_macro_internal/group.h: ...here.
	* libproc_macro/ident.cc: Moved to...
	* libproc_macro_internal/ident.cc: ...here.
	* libproc_macro/ident.h: Moved to...
	* libproc_macro_internal/ident.h: ...here.
	* libproc_macro/literal.cc: Moved to...
	* libproc_macro_internal/literal.cc: ...here.
	* libproc_macro/literal.h: Moved to...
	* libproc_macro_internal/literal.h: ...here.
	* libproc_macro/proc_macro.cc: Moved to...
	* libproc_macro_internal/proc_macro.cc: ...here.
	* libproc_macro/proc_macro.h: Moved to...
	* libproc_macro_internal/proc_macro.h: ...here.
	* libproc_macro/punct.cc: Moved to...
	* libproc_macro_internal/punct.cc: ...here.
	* libproc_macro/punct.h: Moved to...
	* libproc_macro_internal/punct.h: ...here.
	* libproc_macro/registration.h: Moved to...
	* libproc_macro_internal/registration.h: ...here.
	* libproc_macro/rust/bridge.rs: Moved to...
	* libproc_macro_internal/rust/bridge.rs: ...here.
	* libproc_macro/rust/bridge/ffistring.rs: Moved to...
	* libproc_macro_internal/rust/bridge/ffistring.rs: ...here.
	* libproc_macro/rust/bridge/group.rs: Moved to...
	* libproc_macro_internal/rust/bridge/group.rs: ...here.
	* libproc_macro/rust/bridge/ident.rs: Moved to...
	* libproc_macro_internal/rust/bridge/ident.rs: ...here.
	* libproc_macro/rust/bridge/literal.rs: Moved to...
	* libproc_macro_internal/rust/bridge/literal.rs: ...here.
	* libproc_macro/rust/bridge/punct.rs: Moved to...
	* libproc_macro_internal/rust/bridge/punct.rs: ...here.
	* libproc_macro/rust/bridge/span.rs: Moved to...
	* libproc_macro_internal/rust/bridge/span.rs: ...here.
	* libproc_macro/rust/bridge/token_stream.rs: Moved to...
	* libproc_macro_internal/rust/bridge/token_stream.rs: ...here.
	* libproc_macro/rust/group.rs: Moved to...
	* libproc_macro_internal/rust/group.rs: ...here.
	* libproc_macro/rust/ident.rs: Moved to...
	* libproc_macro_internal/rust/ident.rs: ...here.
	* libproc_macro/rust/lib.rs: Moved to...
	* libproc_macro_internal/rust/lib.rs: ...here.
	* libproc_macro/rust/literal.rs: Moved to...
	* libproc_macro_internal/rust/literal.rs: ...here.
	* libproc_macro/rust/punct.rs: Moved to...
	* libproc_macro_internal/rust/punct.rs: ...here.
	* libproc_macro/rust/span.rs: Moved to...
	* libproc_macro_internal/rust/span.rs: ...here.
	* libproc_macro/rust/token_stream.rs: Moved to...
	* libproc_macro_internal/rust/token_stream.rs: ...here.
	* libproc_macro/span.cc: Moved to...
	* libproc_macro_internal/span.cc: ...here.
	* libproc_macro/span.h: Moved to...
	* libproc_macro_internal/span.h: ...here.
	* libproc_macro/tokenstream.cc: Moved to...
	* libproc_macro_internal/tokenstream.cc: ...here.
	* libproc_macro/tokenstream.h: Moved to...
	* libproc_macro_internal/tokenstream.h: ...here.
	* libproc_macro/tokentree.cc: Moved to...
	* libproc_macro_internal/tokentree.cc: ...here.
	* libproc_macro/tokentree.h: Moved to...
	* libproc_macro_internal/tokentree.h: ...here.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

1 files changed, 104 insertions, 0 deletions

diff --git a/libgrust/libproc_macro_internal/proc_macro.h b/libgrust/libproc_macro_internal/proc_macro.h
new file mode 100644
index 0000000..457ec46
--- /dev/null
+++ b/libgrust/libproc_macro_internal/proc_macro.h
@@ -0,0 +1,104 @@
+// Copyright (C) 2023 Free Software Foundation, Inc.
+//
+// This file is part of the GNU Proc Macro Library.  This library 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.
+
+// This library 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef PROC_MACRO_H
+#define PROC_MACRO_H
+
+#include <cstdint>
+#include "literal.h"
+#include "tokenstream.h"
+#include "tokentree.h"
+#include "group.h"
+#include "punct.h"
+#include "ident.h"
+#include "registration.h"
+
+namespace ProcMacro {
+
+extern "C" {
+
+using CustomDeriveMacro = TokenStream (*) (TokenStream);
+using AttributeMacro = TokenStream (*) (TokenStream, TokenStream);
+using BangMacro = TokenStream (*) (TokenStream);
+
+struct CustomDerive
+{
+  // TODO: UTF-8 function name
+  const char *trait_name;
+  // TODO: UTF-8 attributes
+  const char **attributes;
+  std::uint64_t attr_size;
+  CustomDeriveMacro macro;
+};
+
+struct Attribute
+{
+  // TODO: UTF-8 function name
+  const char *name;
+  AttributeMacro macro;
+};
+
+struct Bang
+{
+  const char *name;
+  BangMacro macro;
+};
+}
+
+enum ProcmacroTag
+{
+  CUSTOM_DERIVE,
+  ATTR,
+  BANG,
+};
+
+union ProcmacroPayload
+{
+  CustomDerive custom_derive;
+  Attribute attribute;
+  Bang bang;
+};
+
+struct Procmacro
+{
+  ProcmacroTag tag;
+  ProcmacroPayload payload;
+
+public:
+  Procmacro make_derive (const char *trait_name, const char **attribute,
+			 std::uint64_t size, CustomDeriveMacro macro);
+  Procmacro make_attribute (const char *name, AttributeMacro macro);
+  Procmacro make_bang (const char *name, BangMacro macro);
+};
+
+struct ProcmacroArray
+{
+  std::uint64_t length;
+  Procmacro *macros;
+};
+
+extern "C" bool
+bridge_is_available ();
+
+} // namespace ProcMacro
+
+#endif /* ! PROC_MACRO_H */