%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2012. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
%% Purpose: Run right before beam_asm to do any final fix-ups or clean-ups.
%% (Mandatory.)
-module(beam_z).
-export([module/2]).
module({Mod,Exp,Attr,Fs0,Lc}, _Opt) ->
Fs = [function(F) || F <- Fs0],
{ok,{Mod,Exp,Attr,Fs,Lc}}.
function({function,Name,Arity,CLabel,Is0}) ->
try
Is = [undo_rename(I) || I <- Is0],
{function,Name,Arity,CLabel,Is}
catch
Class:Error ->
Stack = erlang:get_stacktrace(),
io:fwrite("Function: ~w/~w\n", [Name,Arity]),
erlang:raise(Class, Error, Stack)
end.
undo_rename({bs_put,F,{I,U,Fl},[Sz,Src]}) ->
{I,F,Sz,U,Fl,Src};
undo_rename({bs_put,F,{I,Fl},[Src]}) ->
{I,F,Fl,Src};
undo_rename({bs_put,{f,0},{bs_put_string,_,_}=I,[]}) ->
I;
undo_rename({bif,bs_add=I,F,[Src1,Src2,{integer,U}],Dst}) ->
{I,F,[Src1,Src2,U],Dst};
undo_rename({bif,bs_utf8_size=I,F,[Src],Dst}) ->
{I,F,Src,Dst};
undo_rename({bif,bs_utf16_size=I,F,[Src],Dst}) ->
{I,F,Src,Dst};
undo_rename({bs_init,F,{I,U,Flags},none,[Sz,Src],Dst}) ->
{I,F,Sz,U,Src,Flags,Dst};
undo_rename({bs_init,F,{I,Extra,Flags},Live,[Sz],Dst}) ->
{I,F,Sz,Extra,Live,Flags,Dst};
undo_rename({bs_init,F,{I,Extra,U,Flags},Live,[Sz,Src],Dst}) ->
{I,F,Sz,Extra,Live,U,Src,Flags,Dst};
undo_rename({bs_init,_,bs_init_writable=I,_,_,_}) ->
I;
undo_rename(I) -> I.
