From 9d870a01dd2fc331b987905b981c52f57a44669f Mon Sep 17 00:00:00 2001 From: Patrik Nyblom Date: Wed, 1 Feb 2012 16:34:08 +0100 Subject: Reintroduce sensitive BIFs in erl_bif_types This involves exception BIF's, guar BIF's and some other complicated BIF's Also some minor corrections to documentation and specs in erlang.erl Added comment for each spec in erlang.erl shadowed by erl_bif_types. Dialyzer test should now run well except for one or two cases. --- lib/hipe/cerl/erl_bif_types.erl | 150 +++++++++++++++++++++++++++++++++++++--- 1 file changed, 140 insertions(+), 10 deletions(-) (limited to 'lib/hipe') diff --git a/lib/hipe/cerl/erl_bif_types.erl b/lib/hipe/cerl/erl_bif_types.erl index 190f14a474..b822f182c2 100644 --- a/lib/hipe/cerl/erl_bif_types.erl +++ b/lib/hipe/cerl/erl_bif_types.erl @@ -63,6 +63,7 @@ t_fun/2, t_fun_args/1, t_fun_range/1, + t_identifier/0, t_inf/2, t_integer/0, t_integer/1, @@ -138,6 +139,12 @@ type(M, F, A) -> -spec type(atom(), atom(), arity(), [erl_types:erl_type()]) -> erl_types:erl_type(). %%-- erlang ------------------------------------------------------------------- +type(erlang, halt, 0, _) -> t_none(); +type(erlang, halt, 1, _) -> t_none(); +type(erlang, exit, 1, _) -> t_none(); +type(erlang, error, 1, _) -> t_none(); +type(erlang, error, 2, _) -> t_none(); +type(erlang, throw, 1, _) -> t_none(); type(erlang, '==', 2, Xs = [X1, X2]) -> case t_is_atom(X1) andalso t_is_atom(X2) of true -> type(erlang, '=:=', 2, Xs); @@ -489,6 +496,9 @@ type(erlang, 'bnot', 1, Xs) -> {ok, T} -> T end end); +%% Guard bif, needs to be here. +type(erlang, abs, 1, Xs) -> + strict(arg_types(erlang, abs, 1), Xs, fun ([X]) -> X end); %% This returns (-X)-1, so it often gives a negative result. %% strict(arg_types(erlang, 'bnot', 1), Xs, fun (_) -> t_integer() end); type(erlang, append, 2, Xs) -> type(erlang, '++', 2, Xs); % alias @@ -504,8 +514,24 @@ type(erlang, apply, 2, Xs) -> strict(arg_types(erlang, apply, 2), Xs, Fun); type(erlang, apply, 3, Xs) -> strict(arg_types(erlang, apply, 3), Xs, fun (_) -> t_any() end); +%% Guard bif, needs to be here. +type(erlang, binary_part, 2, Xs) -> + strict(arg_types(erlang, binary_part, 2), Xs, fun (_) -> t_binary() end); +%% Guard bif, needs to be here. +type(erlang, binary_part, 3, Xs) -> + strict(arg_types(erlang, binary_part, 3), Xs, fun (_) -> t_binary() end); +%% Guard bif, needs to be here. +type(erlang, bit_size, 1, Xs) -> + strict(arg_types(erlang, bit_size, 1), Xs, + fun (_) -> t_non_neg_integer() end); +%% Guard bif, needs to be here. +type(erlang, byte_size, 1, Xs) -> + strict(arg_types(erlang, byte_size, 1), Xs, + fun (_) -> t_non_neg_integer() end); type(erlang, disconnect_node, 1, Xs) -> strict(arg_types(erlang, disconnect_node, 1), Xs, fun (_) -> t_sup([t_boolean(), t_atom('ignored')]) end); +%% Guard bif, needs to be here. +%% Also much more expressive than anything you could write in a spec... type(erlang, element, 2, Xs) -> strict(arg_types(erlang, element, 2), Xs, fun ([X1, X2]) -> @@ -529,16 +555,22 @@ type(erlang, element, 2, Xs) -> t_sup([type(erlang, element, 2, [X1, Y]) || Y <- Ts]) end end); +%% Guard bif, needs to be here. +type(erlang, float, 1, Xs) -> + strict(arg_types(erlang, float, 1), Xs, fun (_) -> t_float() end); type(erlang, fun_info, 1, Xs) -> strict(arg_types(erlang, fun_info, 1), Xs, fun (_) -> t_list(t_tuple([t_atom(), t_any()])) end); type(erlang, get_cookie, 0, _) -> t_atom(); % | t_atom('nocookie') +%% Guard bif, needs to be here. type(erlang, hd, 1, Xs) -> strict(arg_types(erlang, hd, 1), Xs, fun ([X]) -> t_cons_hd(X) end); type(erlang, integer_to_list, 2, Xs) -> strict(arg_types(erlang, integer_to_list, 2), Xs, fun (_) -> t_string() end); type(erlang, info, 1, Xs) -> type(erlang, system_info, 1, Xs); % alias +%% All type tests are guard BIF's and may be implemented in ways that +%% cannot be expressed in a type spec, why they are kept in erl_bif_types. type(erlang, is_atom, 1, Xs) -> Fun = fun (X) -> check_guard(X, fun (Y) -> t_is_atom(Y) end, t_atom()) end, strict(arg_types(erlang, is_atom, 1), Xs, Fun); @@ -702,6 +734,9 @@ type(erlang, is_tuple, 1, Xs) -> check_guard(X, fun (Y) -> t_is_tuple(Y) end, t_tuple()) end, strict(arg_types(erlang, is_tuple, 1), Xs, Fun); +%% Guard bif, needs to be here. +type(erlang, length, 1, Xs) -> + strict(arg_types(erlang, length, 1), Xs, fun (_) -> t_non_neg_fixnum() end); type(erlang, list_to_integer, 2, Xs) -> strict(arg_types(erlang, list_to_integer, 2), Xs, fun (_) -> t_integer() end); @@ -726,12 +761,47 @@ type(erlang, nif_error, 1, _) -> t_any(); % this BIF and the next one are stubs for NIFs and never return type(erlang, nif_error, 2, Xs) -> strict(arg_types(erlang, nif_error, 2), Xs, fun (_) -> t_any() end); +%% Guard bif, needs to be here. +type(erlang, node, 0, _) -> t_node(); +%% Guard bif, needs to be here. +type(erlang, node, 1, Xs) -> + strict(arg_types(erlang, node, 1), Xs, fun (_) -> t_node() end); type(erlang, nodes, 0, _) -> t_list(t_node()); type(erlang, port_call, Arity, Xs) when Arity =:= 2; Arity =:= 3 -> strict(arg_types(erlang, port_call, Arity), Xs, fun (_) -> t_any() end); type(erlang, port_info, 1, Xs) -> strict(arg_types(erlang, port_info, 1), Xs, fun (_) -> t_sup(t_atom('undefined'), t_list()) end); +type(erlang, port_info, 2, Xs) -> + strict(arg_types(erlang, port_info, 2), Xs, + fun ([_Port, Item]) -> + t_sup(t_atom('undefined'), + case t_atom_vals(Item) of + ['connected'] -> t_tuple([Item, t_pid()]); + ['id'] -> t_tuple([Item, t_integer()]); + ['input'] -> t_tuple([Item, t_integer()]); + ['links'] -> t_tuple([Item, t_list(t_pid())]); + ['name'] -> t_tuple([Item, t_string()]); + ['output'] -> t_tuple([Item, t_integer()]); + ['registered_name'] -> t_tuple([Item, t_atom()]); + List when is_list(List) -> + t_tuple([t_sup([t_atom(A) || A <- List]), + t_sup([t_atom(), t_integer(), + t_pid(), t_list(t_pid()), + t_string()])]); + unknown -> + [_, PosItem] = arg_types(erlang, port_info, 2), + t_tuple([PosItem, + t_sup([t_atom(), t_integer(), + t_pid(), t_list(t_pid()), + t_string()])]) + end) + end); +%% Guard bif, needs to be here. +type(erlang, round, 1, Xs) -> + strict(arg_types(erlang, round, 1), Xs, fun (_) -> t_integer() end); +%% Guard bif, needs to be here. +type(erlang, self, 0, _) -> t_pid(); type(erlang, set_cookie, 2, Xs) -> strict(arg_types(erlang, set_cookie, 2), Xs, fun (_) -> t_atom('true') end); type(erlang, setelement, 3, Xs) -> @@ -765,6 +835,9 @@ type(erlang, setelement, 3, Xs) -> t_sup([type(erlang, setelement, 3, [X1, Y, X3]) || Y <- Ts]) end end); +%% Guard bif, needs to be here. +type(erlang, size, 1, Xs) -> + strict(arg_types(erlang, size, 1), Xs, fun (_) -> t_non_neg_integer() end); type(erlang, spawn, 1, Xs) -> strict(arg_types(erlang, spawn, 1), Xs, fun (_) -> t_pid() end); type(erlang, spawn, 2, Xs) -> @@ -894,13 +967,15 @@ type(erlang, system_info, 1, Xs) -> t_any() %% overapproximation as the return value might change end end); -type(erlang, term_to_binary, 1, Xs) -> - strict(arg_types(erlang, term_to_binary, 1), Xs, fun (_) -> t_binary() end); +%% Guard bif, needs to be here. type(erlang, tl, 1, Xs) -> strict(arg_types(erlang, tl, 1), Xs, fun ([X]) -> t_cons_tl(X) end); -type(erlang, trace_pattern, 2, Xs) -> - strict(arg_types(erlang, trace_pattern, 2), Xs, - fun (_) -> t_non_neg_fixnum() end); %% num of MFAs that match pattern +%% Guard bif, needs to be here. +type(erlang, trunc, 1, Xs) -> + strict(arg_types(erlang, trunc, 1), Xs, fun (_) -> t_integer() end); +%% Guard bif, needs to be here. +type(erlang, tuple_size, 1, Xs) -> + strict(arg_types(erlang, tuple_size, 1), Xs, fun (_) -> t_non_neg_integer() end); type(erlang, tuple_to_list, 1, Xs) -> strict(arg_types(erlang, tuple_to_list, 1), Xs, fun ([X]) -> @@ -2092,6 +2167,9 @@ arg_types(erlang, 'bsl', 2) -> [t_integer(), t_integer()]; arg_types(erlang, 'bnot', 1) -> [t_integer()]; +%% Guard bif, needs to be here. +arg_types(erlang, abs, 1) -> + [t_number()]; arg_types(erlang, append, 2) -> arg_types(erlang, '++', 2); arg_types(erlang, apply, 2) -> @@ -2101,14 +2179,41 @@ arg_types(erlang, apply, 2) -> t_list()]; arg_types(erlang, apply, 3) -> [t_sup(t_atom(), t_tuple()), t_atom(), t_list()]; +%% Guard bif, needs to be here. +arg_types(erlang, binary_part, 2) -> + [t_binary(), t_tuple([t_non_neg_integer(), t_integer()])]; +%% Guard bif, needs to be here. +arg_types(erlang, binary_part, 3) -> + [t_binary(), t_non_neg_integer(), t_integer()]; +%% Guard bif, needs to be here. +arg_types(erlang, bit_size, 1) -> + [t_bitstr()]; +%% Guard bif, needs to be here. +arg_types(erlang, byte_size, 1) -> + [t_binary()]; arg_types(erlang, disconnect_node, 1) -> [t_node()]; +arg_types(erlang, halt, 0) -> + []; +arg_types(erlang, halt, 1) -> + [t_sup(t_non_neg_fixnum(), t_string())]; +arg_types(erlang, error, 1) -> + [t_any()]; +arg_types(erlang, error, 2) -> + [t_any(), t_list()]; +arg_types(erlang, exit, 1) -> + [t_any()]; +%% Guard bif, needs to be here. arg_types(erlang, element, 2) -> [t_pos_fixnum(), t_tuple()]; +%% Guard bif, needs to be here. +arg_types(erlang, float, 1) -> + [t_number()]; arg_types(erlang, fun_info, 1) -> [t_fun()]; arg_types(erlang, get_cookie, 0) -> []; +%% Guard bif, needs to be here. arg_types(erlang, hd, 1) -> [t_cons()]; arg_types(erlang, info, 1) -> @@ -2149,6 +2254,9 @@ arg_types(erlang, is_reference, 1) -> [t_any()]; arg_types(erlang, is_tuple, 1) -> [t_any()]; +%% Guard bif, needs to be here. +arg_types(erlang, length, 1) -> + [t_list()]; arg_types(erlang, list_to_integer, 2) -> [t_list(t_byte()), t_from_range(2, 36)]; arg_types(erlang, make_tuple, 2) -> @@ -2161,6 +2269,12 @@ arg_types(erlang, nif_error, 1) -> [t_any()]; arg_types(erlang, nif_error, 2) -> [t_any(), t_list()]; +%% Guard bif, needs to be here. +arg_types(erlang, node, 0) -> + []; +%% Guard bif, needs to be here. +arg_types(erlang, node, 1) -> + [t_identifier()]; arg_types(erlang, nodes, 0) -> []; arg_types(erlang, port_call, 2) -> @@ -2169,10 +2283,23 @@ arg_types(erlang, port_call, 3) -> [t_sup(t_port(), t_atom()), t_integer(), t_any()]; arg_types(erlang, port_info, 1) -> [t_sup(t_port(), t_atom())]; +arg_types(erlang, port_info, 2) -> + [t_sup(t_port(), t_atom()), + t_atoms(['registered_name', 'id', 'connected', + 'links', 'name', 'input', 'output'])]; +%% Guard bif, needs to be here. +arg_types(erlang, round, 1) -> + [t_number()]; +%% Guard bif, needs to be here. +arg_types(erlang, self, 0) -> + []; arg_types(erlang, set_cookie, 2) -> [t_node(), t_atom()]; arg_types(erlang, setelement, 3) -> [t_pos_integer(), t_tuple(), t_any()]; +%% Guard bif, needs to be here. +arg_types(erlang, size, 1) -> + [t_sup(t_tuple(), t_binary())]; arg_types(erlang, spawn, 1) -> %% TODO: Tuple? [t_fun()]; arg_types(erlang, spawn, 2) -> %% TODO: Tuple? @@ -2194,14 +2321,17 @@ arg_types(erlang, system_info, 1) -> t_tuple([t_atom(), t_any()]), % documented t_tuple([t_atom(), t_atom(), t_any()]), t_tuple([t_atom(allocator_sizes), t_reference(), t_any()])])]; -arg_types(erlang, term_to_binary, 1) -> +arg_types(erlang, throw, 1) -> [t_any()]; +%% Guard bif, needs to be here. arg_types(erlang, tl, 1) -> [t_cons()]; -arg_types(erlang, trace_pattern, 2) -> - [t_sup(t_tuple([t_atom(), t_atom(), t_sup(t_arity(), t_atom('_'))]), - t_atom('on_load')), - t_sup([t_boolean(), t_list(), t_atom('restart'), t_atom('pause')])]; +%% Guard bif, needs to be here. +arg_types(erlang, trunc, 1) -> + [t_number()]; +%% Guard bif, needs to be here. +arg_types(erlang, tuple_size, 1) -> + [t_tuple()]; arg_types(erlang, tuple_to_list, 1) -> [t_tuple()]; arg_types(erlang, yield, 0) -> -- cgit v1.2.3