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| author | Magnus Lång <[email protected]> | 2016-09-07 16:45:21 +0200 |
|---|---|---|
| committer | Magnus Lång <[email protected]> | 2016-09-07 16:45:21 +0200 |
| commit | 5a9cc02690d033a2f3e695d7ac42c2756dbaaf04 (patch) | |
| tree | a90f0eb983d11a4bf99f8e6db5be350afd5e33a5 /lib/hipe | |
| parent | 71894a879d6254693791585246ce340dd7414b82 (diff) | |
| download | otp-5a9cc02690d033a2f3e695d7ac42c2756dbaaf04.tar.gz otp-5a9cc02690d033a2f3e695d7ac42c2756dbaaf04.tar.bz2 otp-5a9cc02690d033a2f3e695d7ac42c2756dbaaf04.zip | |
erl_bif_types: Properly unopaque maps:merge/2 args
erl_bif_types:type/5 was calling erl_types:map_pairwise_merge/3 directly
with its (potentially opaque) arguments, causing Dialyzer crashes.
Bug (ERL-249) reported and minimised test case provided by Felipe
Ripoll.
Diffstat (limited to 'lib/hipe')
| -rw-r--r-- | lib/hipe/cerl/erl_bif_types.erl | 6 | ||||
| -rw-r--r-- | lib/hipe/cerl/erl_types.erl | 27 |
2 files changed, 23 insertions, 10 deletions
diff --git a/lib/hipe/cerl/erl_bif_types.erl b/lib/hipe/cerl/erl_bif_types.erl index 9453ca6c6f..230fce2e68 100644 --- a/lib/hipe/cerl/erl_bif_types.erl +++ b/lib/hipe/cerl/erl_bif_types.erl @@ -124,7 +124,7 @@ t_map_entries/2, t_map_put/3, t_map_update/3, - map_pairwise_merge/3 + t_map_pairwise_merge/4 ]). -ifdef(DO_ERL_BIF_TYPES_TEST). @@ -1689,10 +1689,10 @@ type(maps, merge, 2, Xs, Opaques) -> BDefK = t_map_def_key(MapB, Opaques), ADefV = t_map_def_val(MapA, Opaques), BDefV = t_map_def_val(MapB, Opaques), - t_map(map_pairwise_merge( + t_map(t_map_pairwise_merge( fun(K, _, _, mandatory, V) -> {K, mandatory, V}; (K, MNess, VA, optional, VB) -> {K, MNess, t_sup(VA,VB)} - end, MapA, MapB), + end, MapA, MapB, Opaques), t_sup(ADefK, BDefK), t_sup(ADefV, BDefV)) end, Opaques); type(maps, put, 3, Xs, Opaques) -> diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl index 243bb6e25d..40d7a57952 100644 --- a/lib/hipe/cerl/erl_types.erl +++ b/lib/hipe/cerl/erl_types.erl @@ -159,6 +159,7 @@ t_map_get/2, t_map_get/3, t_map_is_key/2, t_map_is_key/3, t_map_update/2, t_map_update/3, + t_map_pairwise_merge/4, t_map_put/2, t_map_put/3, t_matchstate/0, t_matchstate/2, @@ -219,8 +220,7 @@ is_erl_type/1, atom_to_string/1, var_table__new/0, - cache__new/0, - map_pairwise_merge/3 + cache__new/0 ]). %%-define(DO_ERL_TYPES_TEST, true). @@ -1768,13 +1768,26 @@ mapdict_insert(E1={K1,_,_}, [E2={K2,_,_}|T]) when K1 > K2 -> [E2|mapdict_insert(E1, T)]; mapdict_insert(E={_,_,_}, T) -> [E|T]. +-type map_pairwise_merge_fun() :: fun((erl_type(), + t_map_mandatoriness(), erl_type(), + t_map_mandatoriness(), erl_type()) + -> t_map_pair() | false). + +-spec t_map_pairwise_merge(map_pairwise_merge_fun(), erl_type(), erl_type(), + opaques()) -> t_map_dict(). +t_map_pairwise_merge(F, MapA, MapB, Opaques) -> + do_opaque(MapA, Opaques, + fun(UMapA) -> + do_opaque(MapB, Opaques, + fun(UMapB) -> + map_pairwise_merge(F, UMapA, UMapB) + end) + end). + %% Merges the pairs of two maps together. Missing pairs become (?opt, DefV) or %% (?opt, ?none), depending on whether K \in DefK. --spec map_pairwise_merge(fun((erl_type(), - t_map_mandatoriness(), erl_type(), - t_map_mandatoriness(), erl_type()) - -> t_map_pair() | false), - erl_type(), erl_type()) -> t_map_dict(). +-spec map_pairwise_merge(map_pairwise_merge_fun(), erl_type(), erl_type()) + -> t_map_dict(). map_pairwise_merge(F, ?map(APairs, ADefK, ADefV), ?map(BPairs, BDefK, BDefV)) -> map_pairwise_merge(F, APairs, ADefK, ADefV, BPairs, BDefK, BDefV). |