From f7528edda9fce8043cadb4888dbee06c1609c972 Mon Sep 17 00:00:00 2001 From: Hans Bolinder Date: Tue, 10 Feb 2015 14:05:19 +0100 Subject: [dialyzer] Fix a bug concerning map() types It is allowed in Erlang/OTP 17 to redefine the map() types. However, Dialyzer did not handle local map() types correctly. --- .../test/small_SUITE_data/src/maps_redef2.erl | 23 +++++++++++++++ lib/hipe/cerl/erl_types.erl | 34 ++++++++++++---------- 2 files changed, 42 insertions(+), 15 deletions(-) create mode 100644 lib/dialyzer/test/small_SUITE_data/src/maps_redef2.erl (limited to 'lib') diff --git a/lib/dialyzer/test/small_SUITE_data/src/maps_redef2.erl b/lib/dialyzer/test/small_SUITE_data/src/maps_redef2.erl new file mode 100644 index 0000000000..945b2a9144 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/maps_redef2.erl @@ -0,0 +1,23 @@ +%% In 17, the linter says that map(A) redefines 'type map', which is +%% allowed until next release. However, Dialyzer used to replace +%% map(A) with #{}, which resulted in warnings. + +-module(maps_redef2). + +-export([t/0]). + +-type map(_A) :: integer(). + +t() -> + M = new(), + t1(M). + +-spec t1(map(_)) -> map(_). + +t1(A) -> + A + A. + +-spec new() -> map(_). + +new() -> + 3. diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl index 4b2bec5fa8..4215448c61 100644 --- a/lib/hipe/cerl/erl_types.erl +++ b/lib/hipe/cerl/erl_types.erl @@ -2,7 +2,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2003-2014. All Rights Reserved. +%% Copyright Ericsson AB 2003-2015. 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 @@ -4230,7 +4230,7 @@ t_from_form({type, _L, any, []}, _TypeNames, _RecDict, _VarDict) -> t_from_form({type, _L, arity, []}, _TypeNames, _RecDict, _VarDict) -> {t_arity(), []}; t_from_form({type, _L, array, []}, TypeNames, RecDict, VarDict) -> - builtin_type(array, t_array(), TypeNames, RecDict, VarDict); + builtin_type(array, t_array(), [], TypeNames, RecDict, VarDict); t_from_form({type, _L, atom, []}, _TypeNames, _RecDict, _VarDict) -> {t_atom(), []}; t_from_form({type, _L, binary, []}, _TypeNames, _RecDict, _VarDict) -> @@ -4253,9 +4253,9 @@ t_from_form({type, _L, byte, []}, _TypeNames, _RecDict, _VarDict) -> t_from_form({type, _L, char, []}, _TypeNames, _RecDict, _VarDict) -> {t_char(), []}; t_from_form({type, _L, dict, []}, TypeNames, RecDict, VarDict) -> - builtin_type(dict, t_dict(), TypeNames, RecDict, VarDict); + builtin_type(dict, t_dict(), [], TypeNames, RecDict, VarDict); t_from_form({type, _L, digraph, []}, TypeNames, RecDict, VarDict) -> - builtin_type(digraph, t_digraph(), TypeNames, RecDict, VarDict); + builtin_type(digraph, t_digraph(), [], TypeNames, RecDict, VarDict); t_from_form({type, _L, float, []}, _TypeNames, _RecDict, _VarDict) -> {t_float(), []}; t_from_form({type, _L, function, []}, _TypeNames, _RecDict, _VarDict) -> @@ -4272,9 +4272,9 @@ t_from_form({type, _L, 'fun', [{type, _, product, Domain}, Range]}, {T, R2} = t_from_form(Range, TypeNames, RecDict, VarDict), {t_fun(L, T), R1 ++ R2}; t_from_form({type, _L, gb_set, []}, TypeNames, RecDict, VarDict) -> - builtin_type(gb_set, t_gb_set(), TypeNames, RecDict, VarDict); + builtin_type(gb_set, t_gb_set(), [], TypeNames, RecDict, VarDict); t_from_form({type, _L, gb_tree, []}, TypeNames, RecDict, VarDict) -> - builtin_type(gb_tree, t_gb_tree(), TypeNames, RecDict, VarDict); + builtin_type(gb_tree, t_gb_tree(), [], TypeNames, RecDict, VarDict); t_from_form({type, _L, identifier, []}, _TypeNames, _RecDict, _VarDict) -> {t_identifier(), []}; t_from_form({type, _L, integer, []}, _TypeNames, _RecDict, _VarDict) -> @@ -4288,8 +4288,12 @@ t_from_form({type, _L, list, []}, _TypeNames, _RecDict, _VarDict) -> t_from_form({type, _L, list, [Type]}, TypeNames, RecDict, VarDict) -> {T, R} = t_from_form(Type, TypeNames, RecDict, VarDict), {t_list(T), R}; -t_from_form({type, _L, map, _}, TypeNames, RecDict, VarDict) -> - builtin_type(map, t_map([]), TypeNames, RecDict, VarDict); +t_from_form({type, _L, map, As0}, TypeNames, RecDict, VarDict) -> + As = case is_list(As0) of + true -> As0; + false -> [] + end, + builtin_type(map, t_map([]), As, TypeNames, RecDict, VarDict); t_from_form({type, _L, mfa, []}, _TypeNames, _RecDict, _VarDict) -> {t_mfa(), []}; t_from_form({type, _L, module, []}, _TypeNames, _RecDict, _VarDict) -> @@ -4348,7 +4352,7 @@ t_from_form({type, _L, product, Elements}, TypeNames, RecDict, VarDict) -> {L, R} = list_from_form(Elements, TypeNames, RecDict, VarDict), {t_product(L), R}; t_from_form({type, _L, queue, []}, TypeNames, RecDict, VarDict) -> - builtin_type(queue, t_queue(), TypeNames, RecDict, VarDict); + builtin_type(queue, t_queue(), [], TypeNames, RecDict, VarDict); t_from_form({type, _L, range, [From, To]} = Type, _TypeNames, _RecDict, _VarDict) -> case {erl_eval:partial_eval(From), erl_eval:partial_eval(To)} of @@ -4361,13 +4365,13 @@ t_from_form({type, _L, record, [Name|Fields]}, TypeNames, RecDict, VarDict) -> t_from_form({type, _L, reference, []}, _TypeNames, _RecDict, _VarDict) -> {t_reference(), []}; t_from_form({type, _L, set, []}, TypeNames, RecDict, VarDict) -> - builtin_type(set, t_set(), TypeNames, RecDict, VarDict); + builtin_type(set, t_set(), [], TypeNames, RecDict, VarDict); t_from_form({type, _L, string, []}, _TypeNames, _RecDict, _VarDict) -> {t_string(), []}; t_from_form({type, _L, term, []}, _TypeNames, _RecDict, _VarDict) -> {t_any(), []}; t_from_form({type, _L, tid, []}, TypeNames, RecDict, VarDict) -> - builtin_type(tid, t_tid(), TypeNames, RecDict, VarDict); + builtin_type(tid, t_tid(), [], TypeNames, RecDict, VarDict); t_from_form({type, _L, timeout, []}, _TypeNames, _RecDict, _VarDict) -> {t_timeout(), []}; t_from_form({type, _L, tuple, any}, _TypeNames, _RecDict, _VarDict) -> @@ -4384,10 +4388,10 @@ t_from_form({opaque, _L, Name, {Mod, Args, Rep}}, _TypeNames, _RecDict, _VarDict) -> {t_opaque(Mod, Name, Args, Rep), []}. -builtin_type(Name, Type, TypeNames, RecDict, VarDict) -> - case lookup_type(Name, 0, RecDict) of +builtin_type(Name, Type, Args, TypeNames, RecDict, VarDict) -> + case lookup_type(Name, length(Args), RecDict) of {_, {_M, _T, _A}} -> - type_from_form(Name, [], TypeNames, RecDict, VarDict); + type_from_form(Name, Args, TypeNames, RecDict, VarDict); error -> {Type, []} end. @@ -4588,7 +4592,7 @@ t_form_to_string({type, _L, iodata, []}) -> "iodata()"; t_form_to_string({type, _L, iolist, []}) -> "iolist()"; t_form_to_string({type, _L, list, [Type]}) -> "[" ++ t_form_to_string(Type) ++ "]"; -t_form_to_string({type, _L, map, _}) -> +t_form_to_string({type, _L, map, Args}) when not is_list(Args) -> "#{}"; t_form_to_string({type, _L, mfa, []}) -> "mfa()"; t_form_to_string({type, _L, module, []}) -> "module()"; 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