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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2021. 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(column_pt).
-export([parse_transform/2, parse_transform_info/0, format_error/1]).
parse_transform_info() ->
%% Will default to {error_location,column}.
#{}.
parse_transform(Forms, Options) ->
HasColumn =
case proplists:get_value(error_location, Options, column) of
column ->
true;
line ->
false
end,
AddColumns = proplists:get_value(add_columns, Options, false),
AddError = proplists:get_value(add_error, Options, false),
{eof,LastLocation} = lists:keyfind(eof, 1, Forms),
LastLine = erl_anno:line(erl_anno:new(LastLocation)),
ExtraFormsAnno =
if HasColumn ->
erl_anno:new({LastLine,1});
not HasColumn ->
erl_anno:new(LastLine)
end,
ExtraForms = [{warning,{ExtraFormsAnno,?MODULE,"injected warning"}}] ++
[{error,{ExtraFormsAnno,?MODULE,"injected error"}} || AddError],
lists:map(
fun
({eof,Location}) ->
Anno = erl_anno:new(Location),
HasColumn = erl_anno:column(Anno) =/= undefined,
if AddColumns ->
{eof,{erl_anno:line(Anno), 1}};
not AddColumns ->
{eof,Location}
end;
({ErrorOrWarning,{Location,Module,Text}})
when ErrorOrWarning =:= error;
ErrorOrWarning =:= warning ->
Anno = erl_anno:new(Location),
HasColumn = erl_anno:column(Anno) =/= undefined,
if AddColumns ->
{ErrorOrWarning,{{erl_anno:line(Anno), 1}, Module, Text}};
not AddColumns ->
{ErrorOrWarning, {Location, Module, Text}}
end;
(Form) ->
erl_parse:map_anno(
fun(Anno) ->
HasColumn = erl_anno:column(Anno) =/= undefined,
if AddColumns ->
erl_anno:set_location({erl_anno:line(Anno), 1}, Anno);
not AddColumns ->
Anno
end
end, Form)
end, Forms ++ ExtraForms).
format_error(Error) ->
Error.
|
