sophia/src/aeso_ets_manager.erl
2023-04-20 20:05:23 +03:00

103 lines
2.5 KiB
Erlang

-module(aeso_ets_manager).
-export([ ets_init/0
, ets_new/2
, ets_lookup/2
, ets_insert/2
, ets_insert_new/2
, ets_insert_ordered/2
, ets_delete/1
, ets_delete/2
, ets_match_delete/2
, ets_tab2list/1
, ets_tab2list_ordered/1
, ets_tab_exists/1
, clean_up_ets/0
]).
%% Clean up all the ets tables (in case of an exception)
ets_tables() ->
[options, type_vars, constraints, freshen_tvars, type_errors,
defined_contracts, warnings, function_calls, all_functions,
type_vars_variance, functions_to_implement].
clean_up_ets() ->
[ catch ets_delete(Tab) || Tab <- ets_tables() ],
ok.
%% Named interface to ETS tables implemented without names.
%% The interface functions behave as the standard ETS interface.
ets_init() ->
put(aeso_ast_infer_types, #{}).
ets_tab_exists(Name) ->
Tabs = get(aeso_ast_infer_types),
case maps:find(Name, Tabs) of
{ok, _} -> true;
error -> false
end.
ets_tabid(Name) ->
#{Name := TabId} = get(aeso_ast_infer_types),
TabId.
ets_new(Name, Opts) ->
%% Ensure the table is NOT named!
TabId = ets:new(Name, Opts -- [named_table]),
Tabs = get(aeso_ast_infer_types),
put(aeso_ast_infer_types, Tabs#{Name => TabId}),
Name.
ets_delete(Name) ->
Tabs = get(aeso_ast_infer_types),
#{Name := TabId} = Tabs,
put(aeso_ast_infer_types, maps:remove(Name, Tabs)),
ets:delete(TabId).
ets_delete(Name, Key) ->
TabId = ets_tabid(Name),
ets:delete(TabId, Key).
ets_insert(Name, Object) ->
TabId = ets_tabid(Name),
ets:insert(TabId, Object).
ets_insert_new(Name, Object) ->
TabId = ets_tabid(Name),
ets:insert_new(TabId, Object).
ets_lookup(Name, Key) ->
TabId = ets_tabid(Name),
ets:lookup(TabId, Key).
ets_match_delete(Name, Pattern) ->
TabId = ets_tabid(Name),
ets:match_delete(TabId, Pattern).
ets_tab2list(Name) ->
TabId = ets_tabid(Name),
ets:tab2list(TabId).
ets_insert_ordered(_, []) -> true;
ets_insert_ordered(Name, [H|T]) ->
ets_insert_ordered(Name, H),
ets_insert_ordered(Name, T);
ets_insert_ordered(Name, Object) ->
Count = next_count(),
TabId = ets_tabid(Name),
ets:insert(TabId, {Count, Object}).
ets_tab2list_ordered(Name) ->
[E || {_, E} <- ets_tab2list(Name)].
next_count() ->
V = case get(counter) of
undefined ->
0;
X -> X
end,
put(counter, V + 1),
V.