%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2018. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
-module(beam_listing).
-export([module/2]).
-include("core_parse.hrl").
-include("v3_kernel.hrl").
-include("beam_ssa.hrl").
-include("beam_disasm.hrl").
-import(lists, [foreach/2]).
-type code() :: cerl:c_module()
| beam_utils:module_code()
| #k_mdef{}
| [_]. %form-based format
-spec module(file:io_device(), code()) -> 'ok'.
module(File, #c_module{}=Core) ->
%% This is a core module.
io:put_chars(File, core_pp:format(Core));
module(File, #k_mdef{}=Kern) ->
%% This is a kernel module.
io:put_chars(File, v3_kernel_pp:format(Kern));
%%io:put_chars(File, io_lib:format("~p~n", [Kern]));
module(File, #b_module{name=Mod,exports=Exp,attributes=Attr,body=Fs}) ->
io:format(File, "module ~p.\n", [Mod]),
io:format(File, "exports ~p.\n", [Exp]),
io:format(File, "attributes ~p.\n\n", [Attr]),
PP = [beam_ssa_pp:format_function(F) || F <- Fs],
io:put_chars(File, lists:join($\n, PP));
module(Stream, {Mod,Exp,Attr,Code,NumLabels}) ->
%% This is output from v3_codegen.
io:format(Stream, "{module, ~p}. %% version = ~w\n",
[Mod, beam_opcodes:format_number()]),
io:format(Stream, "\n{exports, ~p}.\n", [Exp]),
io:format(Stream, "\n{attributes, ~p}.\n", [Attr]),
io:format(Stream, "\n{labels, ~p}.\n", [NumLabels]),
foreach(
fun ({function,Name,Arity,Entry,Asm}) ->
io:format(Stream, "\n\n{function, ~w, ~w, ~w}.\n",
[Name, Arity, Entry]),
io:put_chars(Stream, format_asm(Asm))
end, Code);
module(Stream, [_|_]=Fs) ->
%% Form-based abstract format.
foreach(fun (F) -> io:format(Stream, "~p.\n", [F]) end, Fs).
format_asm([{label,L}|Is]) ->
[" {label,",integer_to_list(L),"}.\n"|format_asm(Is)];
format_asm([I|Is]) ->
[io_lib:format(" ~p", [I]),".\n"|format_asm(Is)];
format_asm([]) -> [].
