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-rw-r--r--lib/dialyzer/test/Makefile1
-rw-r--r--lib/dialyzer/test/dialyzer_SUITE.erl77
-rw-r--r--lib/dialyzer/test/file_utils.erl2
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/array4
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/dict26
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/ets6
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/ewgi6
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/inf_loop12
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/inf_loop22
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/para21
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/queue20
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/simple6
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/results/wings14
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/dict/dict_use.erl2
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/ets/ets_use.erl4
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/ewgi/ewgi.hrl2
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/ewgi2/ewgi.hrl2
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/gb_sets/gb_sets_rec.erl4
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/inf_loop1.erl4
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/inf_loop2.erl4
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/multiple_wrong_opaques.erl2
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/para/para1.erl93
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/para/para1_adt.erl36
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/para/para2.erl123
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/para/para2_adt.erl64
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/para/para3.erl77
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/para/para3_adt.erl27
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/simple/exact_api.erl4
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/wings/wings_util.erl4
-rw-r--r--lib/dialyzer/test/opaque_SUITE_data/src/zoltan_kis2.erl2
-rw-r--r--lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow34
-rw-r--r--lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow44
-rw-r--r--lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow58
-rw-r--r--lib/dialyzer/test/race_SUITE_data/results/ets_insert_param8
-rw-r--r--lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes16
-rw-r--r--lib/dialyzer/test/small_SUITE_data/results/predef8
-rw-r--r--lib/dialyzer/test/small_SUITE_data/results/record_construct2
-rw-r--r--lib/dialyzer/test/small_SUITE_data/src/on_load.erl7
-rw-r--r--lib/dialyzer/test/small_SUITE_data/src/predef.erl67
-rw-r--r--lib/dialyzer/test/small_SUITE_data/src/predef2.erl56
-rw-r--r--lib/dialyzer/test/small_SUITE_data/src/record_construct.erl2
-rw-r--r--lib/dialyzer/test/unmatched_returns_SUITE_data/dialyzer_options1
-rw-r--r--lib/dialyzer/test/unmatched_returns_SUITE_data/results/lc_warnings5
-rw-r--r--lib/dialyzer/test/unmatched_returns_SUITE_data/src/lc_warnings/lc_warnings.erl95
-rw-r--r--lib/dialyzer/test/unmatched_returns_SUITE_data/src/lc_warnings/opaque_atom_adt.erl9
45 files changed, 849 insertions, 84 deletions
diff --git a/lib/dialyzer/test/Makefile b/lib/dialyzer/test/Makefile
index 27cabc8ef8..f43e04dd59 100644
--- a/lib/dialyzer/test/Makefile
+++ b/lib/dialyzer/test/Makefile
@@ -11,6 +11,7 @@ AUXILIARY_FILES=\
dialyzer_test_constants.hrl\
dialyzer_common.erl\
file_utils.erl\
+ dialyzer_SUITE.erl\
plt_SUITE.erl
# ----------------------------------------------------
diff --git a/lib/dialyzer/test/dialyzer_SUITE.erl b/lib/dialyzer/test/dialyzer_SUITE.erl
new file mode 100644
index 0000000000..1b62291a00
--- /dev/null
+++ b/lib/dialyzer/test/dialyzer_SUITE.erl
@@ -0,0 +1,77 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014. 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
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(dialyzer_SUITE).
+
+-include_lib("test_server/include/test_server.hrl").
+
+%% Default timetrap timeout (set in init_per_testcase).
+-define(default_timeout, ?t:minutes(1)).
+-define(application, dialyzer).
+
+%% Test server specific exports
+-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
+ init_per_group/2,end_per_group/2]).
+-export([init_per_testcase/2, end_per_testcase/2]).
+
+%% Test cases must be exported.
+-export([app_test/1, appup_test/1]).
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+ [app_test, appup_test].
+
+groups() ->
+ [].
+
+init_per_suite(Config) ->
+ Config.
+
+end_per_suite(_Config) ->
+ ok.
+
+init_per_group(_GroupName, Config) ->
+ Config.
+
+end_per_group(_GroupName, Config) ->
+ Config.
+
+
+init_per_testcase(_Case, Config) ->
+ ?line Dog=test_server:timetrap(?default_timeout),
+ [{watchdog, Dog}|Config].
+end_per_testcase(_Case, Config) ->
+ Dog=?config(watchdog, Config),
+ test_server:timetrap_cancel(Dog),
+ ok.
+
+%%%
+%%% Test cases starts here.
+%%%
+
+app_test(doc) ->
+ ["Test that the .app file does not contain any `basic' errors"];
+app_test(suite) ->
+ [];
+app_test(Config) when is_list(Config) ->
+ ?line ?t:app_test(dialyzer).
+
+%% Test that the .appup file does not contain any `basic' errors
+appup_test(Config) when is_list(Config) ->
+ ok = ?t:appup_test(dialyzer).
diff --git a/lib/dialyzer/test/file_utils.erl b/lib/dialyzer/test/file_utils.erl
index 36b368760c..e1314ec8de 100644
--- a/lib/dialyzer/test/file_utils.erl
+++ b/lib/dialyzer/test/file_utils.erl
@@ -106,7 +106,7 @@ lcs_fast(S1, S2) ->
-spec lcs_fast([string()], [string()],
pos_integer(), pos_integer(),
- non_neg_integer(), array()) -> {[string()], array()}.
+ non_neg_integer(), array:array()) -> {[string()], array:array()}.
lcs_fast([], _, _, _, _, Acc) ->
{[], Acc};
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/array b/lib/dialyzer/test/opaque_SUITE_data/results/array
index b05d088a03..9921b61669 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/array
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/array
@@ -1,3 +1,3 @@
-array_use.erl:12: The type test is_tuple(array()) breaks the opaqueness of the term array()
-array_use.erl:9: The attempt to match a term of type array() against the pattern {'array', _, _, 'undefined', _} breaks the opaqueness of the term
+array_use.erl:12: The type test is_tuple(array:array(_)) breaks the opaqueness of the term array:array(_)
+array_use.erl:9: The attempt to match a term of type array:array(_) against the pattern {'array', _, _, 'undefined', _} breaks the opaqueness of the term
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/dict b/lib/dialyzer/test/opaque_SUITE_data/results/dict
index 5c6bf6a927..42f6663191 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/dict
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/dict
@@ -1,15 +1,15 @@
-dict_use.erl:41: The attempt to match a term of type dict() against the pattern 'gazonk' breaks the opaqueness of the term
-dict_use.erl:45: The attempt to match a term of type dict() against the pattern [] breaks the opaqueness of the term
-dict_use.erl:46: The attempt to match a term of type dict() against the pattern 42 breaks the opaqueness of the term
-dict_use.erl:51: The attempt to match a term of type dict() against the pattern [] breaks the opaqueness of the term
-dict_use.erl:52: The attempt to match a term of type dict() against the pattern 42 breaks the opaqueness of the term
-dict_use.erl:58: Attempt to test for equality between a term of type maybe_improper_list() and a term of opaque type dict()
-dict_use.erl:60: Attempt to test for inequality between a term of type atom() and a term of opaque type dict()
-dict_use.erl:64: Guard test length(D::dict()) breaks the opaqueness of its argument
-dict_use.erl:65: Guard test is_atom(D::dict()) breaks the opaqueness of its argument
-dict_use.erl:66: Guard test is_list(D::dict()) breaks the opaqueness of its argument
-dict_use.erl:70: The type test is_list(dict()) breaks the opaqueness of the term dict()
-dict_use.erl:73: The call dict:fetch('foo',[1 | 2 | 3,...]) does not have an opaque term of type dict() as 2nd argument
+dict_use.erl:41: The attempt to match a term of type dict:dict(_,_) against the pattern 'gazonk' breaks the opaqueness of the term
+dict_use.erl:45: The attempt to match a term of type dict:dict(_,_) against the pattern [] breaks the opaqueness of the term
+dict_use.erl:46: The attempt to match a term of type dict:dict(_,_) against the pattern 42 breaks the opaqueness of the term
+dict_use.erl:51: The attempt to match a term of type dict:dict(_,_) against the pattern [] breaks the opaqueness of the term
+dict_use.erl:52: The attempt to match a term of type dict:dict(_,_) against the pattern 42 breaks the opaqueness of the term
+dict_use.erl:58: Attempt to test for equality between a term of type maybe_improper_list() and a term of opaque type dict:dict(_,_)
+dict_use.erl:60: Attempt to test for inequality between a term of type atom() and a term of opaque type dict:dict(_,_)
+dict_use.erl:64: Guard test length(D::dict:dict(_,_)) breaks the opaqueness of its argument
+dict_use.erl:65: Guard test is_atom(D::dict:dict(_,_)) breaks the opaqueness of its argument
+dict_use.erl:66: Guard test is_list(D::dict:dict(_,_)) breaks the opaqueness of its argument
+dict_use.erl:70: The type test is_list(dict:dict(_,_)) breaks the opaqueness of the term dict:dict(_,_)
+dict_use.erl:73: The call dict:fetch('foo',[1 | 2 | 3,...]) does not have an opaque term of type dict:dict(_,_) as 2nd argument
dict_use.erl:76: The call dict:merge(Fun::any(),42,[1 | 2,...]) does not have opaque terms as 2nd and 3rd arguments
-dict_use.erl:79: The call dict:store(42,'elli',{'dict',0,16,16,8,80,48,{[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]},{{[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]}}}) does not have an opaque term of type dict() as 3rd argument
+dict_use.erl:79: The call dict:store(42,'elli',{'dict',0,16,16,8,80,48,{[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]},{{[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]}}}) does not have an opaque term of type dict:dict(_,_) as 3rd argument
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/ets b/lib/dialyzer/test/opaque_SUITE_data/results/ets
index e79696bc30..e11c7a8352 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/ets
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/ets
@@ -1,4 +1,4 @@
-ets_use.erl:12: Guard test is_integer(T::atom() | tid()) breaks the opaqueness of its argument
-ets_use.erl:20: The type test is_integer(atom() | tid()) breaks the opaqueness of the term atom() | tid()
-ets_use.erl:7: Guard test is_integer(T::tid()) breaks the opaqueness of its argument
+ets_use.erl:12: Guard test is_integer(T::atom() | ets:tid()) breaks the opaqueness of its argument
+ets_use.erl:20: The type test is_integer(atom() | ets:tid()) breaks the opaqueness of the term atom() | ets:tid()
+ets_use.erl:7: Guard test is_integer(T::ets:tid()) breaks the opaqueness of its argument
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/ewgi b/lib/dialyzer/test/opaque_SUITE_data/results/ewgi
index 5bc6b87fbb..209f27b2f2 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/ewgi
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/ewgi
@@ -1,4 +1,4 @@
-ewgi_api.erl:55: The call gb_trees:to_list({non_neg_integer(),'nil' | {_,_,_,_}}) does not have an opaque term of type gb_tree() as 1st argument
-ewgi_testapp.erl:35: The call ewgi_testapp:htmlise_data("request_data",{non_neg_integer(),'nil' | {_,_,_,_}}) does not have a term of type [{_,_}] | gb_tree() (with opaque subterms) as 2nd argument
-ewgi_testapp.erl:43: The call gb_trees:to_list(T::{non_neg_integer(),'nil' | {_,_,_,_}}) does not have an opaque term of type gb_tree() as 1st argument
+ewgi_api.erl:55: The call gb_trees:to_list({non_neg_integer(),'nil' | {_,_,_,_}}) does not have an opaque term of type gb_trees:tree(_,_) as 1st argument
+ewgi_testapp.erl:35: The call ewgi_testapp:htmlise_data("request_data",{non_neg_integer(),'nil' | {_,_,_,_}}) does not have a term of type [{_,_}] | gb_trees:tree(_,_) (with opaque subterms) as 2nd argument
+ewgi_testapp.erl:43: The call gb_trees:to_list(T::{non_neg_integer(),'nil' | {_,_,_,_}}) does not have an opaque term of type gb_trees:tree(_,_) as 1st argument
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/inf_loop1 b/lib/dialyzer/test/opaque_SUITE_data/results/inf_loop1
index 4fe5fcfe2d..ac5ef14041 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/inf_loop1
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/inf_loop1
@@ -2,4 +2,4 @@
inf_loop1.erl:119: The pattern [{_, LNorms}] can never match the type []
inf_loop1.erl:121: The pattern [{LinksA, LNormA}, {LinksB, LNormB}] can never match the type []
inf_loop1.erl:129: The pattern [{_, Norm} | _] can never match the type []
-inf_loop1.erl:71: The call gb_trees:get(Edge::any(),Etab::array()) does not have an opaque term of type gb_tree() as 2nd argument
+inf_loop1.erl:71: The call gb_trees:get(Edge::any(),Etab::array:array(_)) does not have an opaque term of type gb_trees:tree(_,_) as 2nd argument
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/inf_loop2 b/lib/dialyzer/test/opaque_SUITE_data/results/inf_loop2
index 4f0b79eb35..8cd2abe8cd 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/inf_loop2
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/inf_loop2
@@ -2,4 +2,4 @@
inf_loop2.erl:122: The pattern [{_, LNorms}] can never match the type []
inf_loop2.erl:124: The pattern [{LinksA, LNormA}, {LinksB, LNormB}] can never match the type []
inf_loop2.erl:132: The pattern [{_, Norm} | _] can never match the type []
-inf_loop2.erl:74: The call gb_trees:get(Edge::any(),Etab::array()) does not have an opaque term of type gb_tree() as 2nd argument
+inf_loop2.erl:74: The call gb_trees:get(Edge::any(),Etab::array:array(_)) does not have an opaque term of type gb_trees:tree(_,_) as 2nd argument
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/para b/lib/dialyzer/test/opaque_SUITE_data/results/para
new file mode 100644
index 0000000000..3aaa238de6
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/para
@@ -0,0 +1,21 @@
+
+para1.erl:18: The test para1:t(atom()) =:= para1:t(integer()) can never evaluate to 'true'
+para1.erl:23: The test para1:t(atom()) =:= para1:t() can never evaluate to 'true'
+para1.erl:28: The test para1:t() =:= para1:t(integer()) can never evaluate to 'true'
+para1.erl:33: The test {3,2} =:= {'a','b'} can never evaluate to 'true'
+para1.erl:38: Attempt to test for equality between a term of type para1_adt:t(integer()) and a term of opaque type para1_adt:t(atom())
+para1.erl:43: Attempt to test for equality between a term of type para1_adt:t() and a term of opaque type para1_adt:t(atom())
+para1.erl:48: Attempt to test for equality between a term of type para1_adt:t(integer()) and a term of opaque type para1_adt:t()
+para1.erl:53: The test {3,2} =:= {'a','b'} can never evaluate to 'true'
+para2.erl:103: Attempt to test for equality between a term of type para2_adt:circ({{integer(),integer()},{integer(),integer()}},{{integer(),integer()},{integer(),integer()}}) and a term of opaque type para2_adt:circ({{integer(),integer()},{integer(),integer()}})
+para2.erl:117: Attempt to test for equality between a term of type para2_adt:un(atom(),integer()) and a term of opaque type para2_adt:un(integer(),atom())
+para2.erl:31: The test 'a' =:= 'b' can never evaluate to 'true'
+para2.erl:61: Attempt to test for equality between a term of type para2_adt:c2() and a term of opaque type para2_adt:c1()
+para2.erl:66: The test 'a' =:= 'b' can never evaluate to 'true'
+para2.erl:88: The test para2:circ({{integer(),integer()},{integer(),integer()}}) =:= para2:circ({{integer(),integer()},{integer(),integer()}},{{integer(),integer()},{integer(),integer()}}) can never evaluate to 'true'
+para3.erl:28: Invalid type specification for function para3:ot2/0. The success typing is () -> 'foo'
+para3.erl:36: The pattern {{{17}}} can never match the type {{{{{{_,_,_,_,_}}}}}}
+para3.erl:55: Invalid type specification for function para3:t2/0. The success typing is () -> 'foo'
+para3.erl:65: The attempt to match a term of type {{{{{para3_adt:ot1(_,_,_,_,_)}}}}} against the pattern {{{{{17}}}}} breaks the opaqueness of para3_adt:ot1(_,_,_,_,_)
+para3.erl:68: The pattern {{{{17}}}} can never match the type {{{{{para3_adt:ot1(_,_,_,_,_)}}}}}
+para3.erl:74: Invalid type specification for function para3:exp_adt/0. The success typing is () -> 3
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/queue b/lib/dialyzer/test/opaque_SUITE_data/results/queue
index 59ce33f098..5b3813c418 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/queue
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/queue
@@ -1,11 +1,11 @@
-queue_use.erl:18: The call queue:is_empty({[],[]}) does not have an opaque term of type queue() as 1st argument
-queue_use.erl:22: The call queue:in(42,Q0::{[],[]}) does not have an opaque term of type queue() as 2nd argument
-queue_use.erl:27: The attempt to match a term of type queue() against the pattern {"*", Q2} breaks the opaqueness of the term
-queue_use.erl:33: Attempt to test for equality between a term of type {[42,...],[]} and a term of opaque type queue()
-queue_use.erl:36: The attempt to match a term of type queue() against the pattern {F, _R} breaks the opaqueness of the term
-queue_use.erl:40: The call queue:out({[42,...],[]}) does not have an opaque term of type queue() as 1st argument
-queue_use.erl:51: The call queue_use:is_in_queue(E::42,DB::#db{p::[],q::queue()}) contains an opaque term as 2nd argument when terms of different types are expected in these positions
-queue_use.erl:56: The attempt to match a term of type #db{p::[],q::queue()} against the pattern {'db', _, {L1, L2}} breaks the opaqueness of queue()
-queue_use.erl:62: The call queue_use:tuple_queue({42,'gazonk'}) does not have a term of type {_,queue()} (with opaque subterms) as 1st argument
-queue_use.erl:65: The call queue:in(F::42,Q::'gazonk') does not have an opaque term of type queue() as 2nd argument
+queue_use.erl:18: The call queue:is_empty({[],[]}) does not have an opaque term of type queue:queue(_) as 1st argument
+queue_use.erl:22: The call queue:in(42,Q0::{[],[]}) does not have an opaque term of type queue:queue(_) as 2nd argument
+queue_use.erl:27: The attempt to match a term of type queue:queue(_) against the pattern {"*", Q2} breaks the opaqueness of the term
+queue_use.erl:33: Attempt to test for equality between a term of type {[42,...],[]} and a term of opaque type queue:queue(_)
+queue_use.erl:36: The attempt to match a term of type queue:queue(_) against the pattern {F, _R} breaks the opaqueness of the term
+queue_use.erl:40: The call queue:out({[42,...],[]}) does not have an opaque term of type queue:queue(_) as 1st argument
+queue_use.erl:51: The call queue_use:is_in_queue(E::42,DB::#db{p::[],q::queue:queue(_)}) contains an opaque term as 2nd argument when terms of different types are expected in these positions
+queue_use.erl:56: The attempt to match a term of type #db{p::[],q::queue:queue(_)} against the pattern {'db', _, {L1, L2}} breaks the opaqueness of queue:queue(_)
+queue_use.erl:62: The call queue_use:tuple_queue({42,'gazonk'}) does not have a term of type {_,queue:queue(_)} (with opaque subterms) as 1st argument
+queue_use.erl:65: The call queue:in(F::42,Q::'gazonk') does not have an opaque term of type queue:queue(_) as 2nd argument
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/simple b/lib/dialyzer/test/opaque_SUITE_data/results/simple
index f55b384cbe..072ac9be8f 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/simple
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/simple
@@ -1,6 +1,6 @@
-exact_api.erl:17: The call exact_api:set_type(A::#digraph{vtab::'notable',etab::'notable',ntab::'notable',cyclic::'true'}) does not have an opaque term of type digraph() as 1st argument
-exact_api.erl:23: The call digraph:delete(G::#digraph{vtab::'notable',etab::'notable',ntab::'notable',cyclic::'true'}) does not have an opaque term of type digraph() as 1st argument
+exact_api.erl:17: The call exact_api:set_type(A::#digraph{vtab::'notable',etab::'notable',ntab::'notable',cyclic::'true'}) does not have an opaque term of type digraph:graph() as 1st argument
+exact_api.erl:23: The call digraph:delete(G::#digraph{vtab::'notable',etab::'notable',ntab::'notable',cyclic::'true'}) does not have an opaque term of type digraph:graph() as 1st argument
exact_api.erl:55: The attempt to match a term of type exact_adt:exact_adt() against the pattern {'exact_adt'} breaks the opaqueness of the term
exact_api.erl:59: The call exact_adt:exact_adt_set_type2(A::#exact_adt{}) does not have an opaque term of type exact_adt:exact_adt() as 1st argument
is_rec.erl:10: The call erlang:is_record(simple1_adt:d1(),'r',2) contains an opaque term as 1st argument when terms of different types are expected in these positions
@@ -73,7 +73,7 @@ simple1_api.erl:536: Guard test A::simple1_adt:d1() == 3 contains an opaque term
simple1_api.erl:538: Guard test A::simple1_adt:d1() =:= 3 contains an opaque term as 1st argument
simple1_api.erl:548: The call erlang:'<'(A::simple1_adt:d1(),3) contains an opaque term as 1st argument when terms of different types are expected in these positions
simple1_api.erl:558: The call erlang:'=<'(A::simple1_adt:d1(),B::simple1_adt:d2()) contains an opaque term as 1st argument when terms of different types are expected in these positions
-simple1_api.erl:565: Guard test {digraph(),3} > {digraph(),atom() | tid()} contains an opaque term as 2nd argument
+simple1_api.erl:565: Guard test {digraph:graph(),3} > {digraph:graph(),atom() | ets:tid()} contains an opaque term as 2nd argument
simple1_api.erl:91: Invalid type specification for function simple1_api:tup/0. The success typing is () -> {'a','b'}
simple2_api.erl:100: The call lists:flatten(A::simple1_adt:tuple1()) contains an opaque term as 1st argument when a structured term of type [any()] is expected
simple2_api.erl:116: The call lists:flatten({simple1_adt:tuple1()}) will never return since it differs in the 1st argument from the success typing arguments: ([any()])
diff --git a/lib/dialyzer/test/opaque_SUITE_data/results/wings b/lib/dialyzer/test/opaque_SUITE_data/results/wings
index 0ca91ae331..511263b70a 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/results/wings
+++ b/lib/dialyzer/test/opaque_SUITE_data/results/wings
@@ -1,11 +1,11 @@
-wings_dissolve.erl:103: Guard test is_list(List::gb_set()) breaks the opaqueness of its argument
-wings_dissolve.erl:19: Guard test is_list(Faces::gb_set()) breaks the opaqueness of its argument
-wings_dissolve.erl:272: Guard test is_list(Faces::gb_set()) breaks the opaqueness of its argument
-wings_dissolve.erl:31: The call gb_sets:is_empty(Faces::[any(),...]) does not have an opaque term of type gb_set() as 1st argument
+wings_dissolve.erl:103: Guard test is_list(List::gb_sets:set(_)) breaks the opaqueness of its argument
+wings_dissolve.erl:19: Guard test is_list(Faces::gb_sets:set(_)) breaks the opaqueness of its argument
+wings_dissolve.erl:272: Guard test is_list(Faces::gb_sets:set(_)) breaks the opaqueness of its argument
+wings_dissolve.erl:31: The call gb_sets:is_empty(Faces::[any(),...]) does not have an opaque term of type gb_sets:set(_) as 1st argument
wings_edge.erl:205: The pattern <Edge, 'hard', Htab> can never match the type <_,'soft',_>
-wings_edge_cmd.erl:30: The call gb_trees:size(P::gb_set()) does not have an opaque term of type gb_tree() as 1st argument
+wings_edge_cmd.erl:30: The call gb_trees:size(P::gb_sets:set(_)) does not have an opaque term of type gb_trees:tree(_,_) as 1st argument
wings_edge_cmd.erl:32: The pattern [_ | Parts] can never match the type []
wings_edge_cmd.erl:32: The pattern [{_, P} | _] can never match the type []
-wings_io.erl:30: The attempt to match a term of type {'empty',queue()} against the pattern {'empty', {In, Out}} breaks the opaqueness of queue()
-wings_we.erl:155: The call wings_util:gb_trees_largest_key(Etab::gb_tree()) contains an opaque term as 1st argument when a structured term of type {_,{_,_,_,'nil' | {_,_,_,'nil' | {_,_,_,_}}}} is expected
+wings_io.erl:30: The attempt to match a term of type {'empty',queue:queue(_)} against the pattern {'empty', {In, Out}} breaks the opaqueness of queue:queue(_)
+wings_we.erl:155: The call wings_util:gb_trees_largest_key(Etab::gb_trees:tree(_,_)) contains an opaque term as 1st argument when a structured term of type {_,{_,_,_,'nil' | {_,_,_,'nil' | {_,_,_,_}}}} is expected
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/dict/dict_use.erl b/lib/dialyzer/test/opaque_SUITE_data/src/dict/dict_use.erl
index 8a2cd86f43..a4cec065ab 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/dict/dict_use.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/dict/dict_use.erl
@@ -24,7 +24,7 @@ ok3() ->
ok4() ->
dict:fetch(foo, dict:new()).
-ok5() -> % this is OK since some_mod:new/0 might be returning a dict()
+ok5() -> % this is OK since some_mod:new/0 might be returning a dict:dict()
dict:fetch(foo, some_mod:new()).
ok6() ->
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/ets/ets_use.erl b/lib/dialyzer/test/opaque_SUITE_data/src/ets/ets_use.erl
index 4eb202f16a..593d9a669d 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/ets/ets_use.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/ets/ets_use.erl
@@ -17,6 +17,6 @@ t3() ->
is_atom(n()). % no warning since atom() is possible
t4() ->
- is_integer(n()). % opaque warning since tid() is opaque
+ is_integer(n()). % opaque warning since ets:tid() is opaque
-n() -> ets:new(n, [named_table]). % -> atom() | tid()
+n() -> ets:new(n, [named_table]). % -> atom() | ets:tid()
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/ewgi/ewgi.hrl b/lib/dialyzer/test/opaque_SUITE_data/src/ewgi/ewgi.hrl
index 0b98f550f1..5cbc79f948 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/ewgi/ewgi.hrl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/ewgi/ewgi.hrl
@@ -28,7 +28,7 @@
%% @type bag() = gb_tree()
-ifdef(HAS_GB_TREE_SPEC).
--type bag() :: gb_tree().
+-type bag() :: gb_trees:tree().
-else.
-type bag() :: {non_neg_integer(), {any(), any(), any(), any()} | 'nil'}.
-endif.
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/ewgi2/ewgi.hrl b/lib/dialyzer/test/opaque_SUITE_data/src/ewgi2/ewgi.hrl
index 5da8ff0ecf..d8e15cb081 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/ewgi2/ewgi.hrl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/ewgi2/ewgi.hrl
@@ -29,7 +29,7 @@
%% @type bag() = gb_tree()
-ifdef(HAS_GB_TREE_SPEC).
--type bag() :: gb_tree().
+-type bag() :: gb_trees:tree().
-else.
-type bag() :: {non_neg_integer(), {any(), any(), any(), any()} | 'nil'}.
-endif.
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/gb_sets/gb_sets_rec.erl b/lib/dialyzer/test/opaque_SUITE_data/src/gb_sets/gb_sets_rec.erl
index 008b0a486a..7c34b01c2d 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/gb_sets/gb_sets_rec.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/gb_sets/gb_sets_rec.erl
@@ -12,12 +12,12 @@
-export([new/0, get_g/1]).
--record(rec, {g :: gb_set()}).
+-record(rec, {g :: gb_sets:set()}).
-spec new() -> #rec{}.
new() ->
#rec{g = gb_sets:empty()}.
--spec get_g(#rec{}) -> gb_set().
+-spec get_g(#rec{}) -> gb_sets:set().
get_g(R) ->
R#rec.g.
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/inf_loop1.erl b/lib/dialyzer/test/opaque_SUITE_data/src/inf_loop1.erl
index 0dff16cf14..3275736e75 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/inf_loop1.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/inf_loop1.erl
@@ -1,7 +1,7 @@
%% -*- erlang-indent-level: 2 -*-
%%----------------------------------------------------------------------------
%% Non-sensical (i.e., stripped-down) program that sends the analysis
-%% into an infinite loop. The #we.es field was originally a gb_tree()
+%% into an infinite loop. The #we.es field was originally a gb_trees:tree()
%% but the programmer declared it as an array in order to change it to
%% that data type instead. In the file, there are two calls to function
%% gb_trees:get/2 which seem to be the ones responsible for sending the
@@ -14,7 +14,7 @@
-export([command/1]).
-record(we, {id,
- es = array:new() :: array(),
+ es = array:new() :: array:array(),
vp,
mirror = none}).
-record(edge, {vs,ve,a = none,b = none,lf,rf,ltpr,ltsu,rtpr,rtsu}).
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/inf_loop2.erl b/lib/dialyzer/test/opaque_SUITE_data/src/inf_loop2.erl
index 659ccaf015..3787fc6750 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/inf_loop2.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/inf_loop2.erl
@@ -4,7 +4,7 @@
%% restored.
%% Non-sensical (i.e., stripped-down) program that sends the analysis
-%% into an infinite loop. The #we.es field was originally a gb_tree()
+%% into an infinite loop. The #we.es field was originally a gb_trees:tree()
%% but the programmer declared it as an array in order to change it to
%% that data type instead. In the file, there are two calls to function
%% gb_trees:get/2 which seem to be the ones responsible for sending the
@@ -17,7 +17,7 @@
-export([command/1]).
-record(we, {id,
- es = array:new() :: array(),
+ es = array:new() :: array:array(),
vp,
mirror = none}).
-record(edge, {vs,ve,a = none,b = none,lf,rf,ltpr,ltsu,rtpr,rtsu}).
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/multiple_wrong_opaques.erl b/lib/dialyzer/test/opaque_SUITE_data/src/multiple_wrong_opaques.erl
index 9e695cec1d..e9f7ad825b 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/multiple_wrong_opaques.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/multiple_wrong_opaques.erl
@@ -2,7 +2,7 @@
-export([weird/1]).
--spec weird(dict() | gb_tree()) -> 42.
+-spec weird(dict:dict() | gb_trees:tree()) -> 42.
weird(gazonk) -> 42.
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/para/para1.erl b/lib/dialyzer/test/opaque_SUITE_data/src/para/para1.erl
new file mode 100644
index 0000000000..68e2c60368
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/para/para1.erl
@@ -0,0 +1,93 @@
+-module(para1).
+
+-compile(export_all).
+
+%% Parameterized opaque types
+
+-export_type([t/0, t/1]).
+
+-opaque t() :: {integer(), integer()}.
+
+-opaque t(A) :: {A, A}.
+
+-type y(A) :: {A, A}.
+
+tt1() ->
+ I = t1(),
+ A = t2(),
+ A =:= I. % never 'true'
+
+tt2() ->
+ I = t0(),
+ A = t2(),
+ A =:= I. % never 'true'
+
+tt3() ->
+ I1 = t0(),
+ I2 = t1(),
+ I1 =:= I2. % never true
+
+tt4() ->
+ I1 = y1(),
+ I2 = y2(),
+ I1 =:= I2. % cannot evaluate to true
+
+adt_tt1() ->
+ I = adt_t1(),
+ A = adt_t2(),
+ A =:= I. % opaque attempt
+
+adt_tt2() ->
+ I = adt_t0(),
+ A = adt_t2(),
+ A =:= I. % opaque attempt
+
+adt_tt3() ->
+ I1 = adt_t0(),
+ I2 = adt_t1(),
+ I1 =:= I2. % opaque attempt
+
+adt_tt4() ->
+ I1 = adt_y1(),
+ I2 = adt_y2(),
+ I1 =:= I2. % cannot evaluate to true
+
+-spec t0() -> t().
+
+t0() ->
+ {3, 2}.
+
+-spec t1() -> t(integer()).
+
+t1() ->
+ {3, 3}.
+
+-spec t2() -> t(atom()).
+
+t2() ->
+ {a, b}.
+
+-spec y1() -> y(integer()).
+
+y1() ->
+ {3, 2}.
+
+-spec y2() -> y(atom()).
+
+y2() ->
+ {a, b}.
+
+adt_t0() ->
+ para1_adt:t0().
+
+adt_t1() ->
+ para1_adt:t1().
+
+adt_t2() ->
+ para1_adt:t2().
+
+adt_y1() ->
+ para1_adt:y1().
+
+adt_y2() ->
+ para1_adt:y2().
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/para/para1_adt.erl b/lib/dialyzer/test/opaque_SUITE_data/src/para/para1_adt.erl
new file mode 100644
index 0000000000..95ac6b7982
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/para/para1_adt.erl
@@ -0,0 +1,36 @@
+-module(para1_adt).
+
+-export([t0/0, t1/0, t2/0, y1/0, y2/0]).
+
+-export_type([t/0, t/1, y/1]).
+
+-opaque t() :: {integer(), integer()}.
+
+-opaque t(A) :: {A, A}.
+
+-type y(A) :: {A, A}.
+
+-spec t0() -> t().
+
+t0() ->
+ {3, 2}.
+
+-spec t1() -> t(integer()).
+
+t1() ->
+ {3, 3}.
+
+-spec t2() -> t(atom()).
+
+t2() ->
+ {a, b}.
+
+-spec y1() -> y(integer()).
+
+y1() ->
+ {3, 2}.
+
+-spec y2() -> y(atom()).
+
+y2() ->
+ {a, b}.
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/para/para2.erl b/lib/dialyzer/test/opaque_SUITE_data/src/para/para2.erl
new file mode 100644
index 0000000000..09b2235fa5
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/para/para2.erl
@@ -0,0 +1,123 @@
+-module(para2).
+
+-compile(export_all).
+
+%% More parameterized opaque types
+
+-export_type([strange/1]).
+
+-export_type([c1/0, c2/0]).
+
+-export_type([circ/1, circ/2]).
+
+-opaque strange(A) :: {B, B, A}.
+
+-spec t(strange(integer())) -> strange(atom()).
+
+t({3, 4, 5}) ->
+ {a, b, c}.
+
+-opaque c1() :: c2().
+-opaque c2() :: c1().
+
+c() ->
+ A = c1(),
+ B = c2(),
+ A =:= B.
+
+t() ->
+ A = ct1(),
+ B = ct2(),
+ A =:= B. % can never evaluate to 'true'
+
+-spec c1() -> c1().
+
+c1() ->
+ a.
+
+-spec c2() -> c2().
+
+c2() ->
+ a.
+
+-type ct1() :: ct2().
+-type ct2() :: ct1().
+
+-spec ct1() -> ct1().
+
+ct1() ->
+ a.
+
+-spec ct2() -> ct2().
+
+ct2() ->
+ b.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+c_adt() ->
+ A = c1_adt(),
+ B = c2_adt(),
+ A =:= B. % opaque attempt
+
+t_adt() ->
+ A = ct1_adt(),
+ B = ct2_adt(),
+ A =:= B. % can never evaluate to true
+
+c1_adt() ->
+ para2_adt:c1().
+
+c2_adt() ->
+ para2_adt:c2().
+
+ct1_adt() ->
+ para2_adt:ct1().
+
+ct2_adt() ->
+ para2_adt:ct2().
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+-opaque circ(A) :: circ(A, A).
+-opaque circ(A, B) :: circ({A, B}).
+
+tcirc() ->
+ A = circ1(),
+ B = circ2(),
+ A =:= B. % can never evaluate to 'true' (but the types are not OK, or?)
+
+-spec circ1() -> circ(integer()).
+
+circ1() ->
+ 3.
+
+-spec circ2() -> circ(integer(), integer()).
+
+circ2() ->
+ {3, 3}.
+
+tcirc_adt() ->
+ A = circ1_adt(),
+ B = circ2_adt(),
+ A =:= B. % opaque attempt (one would expect them to be the same...)
+
+circ1_adt() ->
+ para2_adt:circ1().
+
+circ2_adt() ->
+ para2_adt:circ2().
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+u_adt() ->
+ A = u1_adt(),
+ B = u2_adt(),
+ %% The resulting types are equal, but not the parameters:
+ A =:= B. % opaque attempt
+
+u1_adt() ->
+ para2_adt:u1().
+
+u2_adt() ->
+ para2_adt:u2().
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/para/para2_adt.erl b/lib/dialyzer/test/opaque_SUITE_data/src/para/para2_adt.erl
new file mode 100644
index 0000000000..96df437c67
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/para/para2_adt.erl
@@ -0,0 +1,64 @@
+-module(para2_adt).
+
+%% More parameterized opaque types
+
+-export_type([c1/0, c2/0]).
+
+-export_type([ct1/0, ct2/0]).
+
+-export_type([circ/1, circ/2]).
+
+-export_type([un/2]).
+
+-export([c1/0, c2/0, ct1/0, ct2/0, circ1/0, circ2/0, u1/0, u2/0]).
+
+-opaque c1() :: c2().
+-opaque c2() :: c1().
+
+-spec c1() -> c1().
+
+c1() ->
+ a.
+
+-spec c2() -> c2().
+
+c2() ->
+ a.
+
+-type ct1() :: ct2().
+-type ct2() :: ct1().
+
+-spec ct1() -> ct1().
+
+ct1() ->
+ a.
+
+-spec ct2() -> ct2().
+
+ct2() ->
+ b.
+
+-opaque circ(A) :: circ(A, A).
+-opaque circ(A, B) :: circ({A, B}).
+
+-spec circ1() -> circ(integer()).
+
+circ1() ->
+ 3.
+
+-spec circ2() -> circ(integer(), integer()).
+
+circ2() ->
+ {3, 3}.
+
+-opaque un(A, B) :: A | B.
+
+-spec u1() -> un(integer(), atom()).
+
+u1() ->
+ 3.
+
+-spec u2() -> un(atom(), integer()).
+
+u2() ->
+ 3.
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/para/para3.erl b/lib/dialyzer/test/opaque_SUITE_data/src/para/para3.erl
new file mode 100644
index 0000000000..792ae40d39
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/para/para3.erl
@@ -0,0 +1,77 @@
+-module(para3).
+
+-export([t/0, t1/1, t2/0, ot1/1, ot2/0, t1_adt/0, t2_adt/0]).
+
+-export([exp_adt/0]).
+
+%% More opaque tests.
+
+-export_type([ot1/0, ot1/1, ot1/2, ot1/3, ot1/4, ot1/5]).
+
+-opaque ot1() :: {ot1(_)}.
+
+-opaque ot1(A) :: {ot1(A, A)}.
+
+-opaque ot1(A, B) :: {ot1(A, B, A)}.
+
+-opaque ot1(A, B, C) :: {ot1(A, B, C, A)}.
+
+-opaque ot1(A, B, C, D) :: {ot1(A, B, C, D, A)}.
+
+-opaque ot1(A, B, C, D, E) :: {A, B, C, D, E}.
+
+-spec ot1(_) -> ot1().
+
+ot1(A) ->
+ {{{{{A, A, A, A, A}}}}}.
+
+-spec ot2() -> ot1(). % invalid type spec
+
+ot2() ->
+ foo.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+t() ->
+ {{{17}}} = t1(3). %% pattern can never match
+
+-type t1() :: {t1(_)}.
+
+-type t1(A) :: {t1(A, A)}.
+
+-type t1(A, B) :: {t1(A, B, A)}.
+
+-type t1(A, B, C) :: {t1(A, B, C, A)}.
+
+-type t1(A, B, C, D) :: {t1(A, B, C, D, A)}.
+
+-type t1(A, B, C, D, E) :: {A, B, C, D, E}.
+
+-spec t1(_) -> t1().
+
+t1(A) ->
+ {{{{{A, A, A, A, A}}}}}.
+
+-spec t2() -> t1(). % invalid type spec
+
+t2() ->
+ foo.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%% Shows that the list TypeNames in t_from_form must include ArgsLen.
+
+t1_adt() ->
+ {{{{{17}}}}} = para3_adt:t1(3). % breaks the opaqueness
+
+t2_adt() ->
+ {{{{17}}}} = para3_adt:t1(3). % can never match
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+-type exp() :: para3_adt:exp1(para3_adt:exp2()).
+
+-spec exp_adt() -> exp().
+
+exp_adt() ->
+ 3.
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/para/para3_adt.erl b/lib/dialyzer/test/opaque_SUITE_data/src/para/para3_adt.erl
new file mode 100644
index 0000000000..3919b846e6
--- /dev/null
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/para/para3_adt.erl
@@ -0,0 +1,27 @@
+-module(para3_adt).
+
+-export([t1/1]).
+
+-export_type([t1/0, t1/1, t1/2, t1/3, t1/4, ot1/5]).
+
+-export_type([exp1/1, exp2/0]).
+
+-type t1() :: {t1(_)}.
+
+-type t1(A) :: {t1(A, A)}.
+
+-type t1(A, B) :: {t1(A, B, A)}.
+
+-type t1(A, B, C) :: {t1(A, B, C, A)}.
+
+-type t1(A, B, C, D) :: {ot1(A, B, C, D, A)}.
+
+-opaque ot1(A, B, C, D, E) :: {A, B, C, D, E}.
+
+-spec t1(_) -> t1().
+
+t1(A) ->
+ {{{{{A, A, A, A, A}}}}}.
+
+-opaque exp1(T) :: T.
+-opaque exp2() :: integer().
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/simple/exact_api.erl b/lib/dialyzer/test/opaque_SUITE_data/src/simple/exact_api.erl
index 5f7ab4f3aa..c19330eb30 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/simple/exact_api.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/simple/exact_api.erl
@@ -10,14 +10,14 @@
ntab = notable :: ets:tab(),
cyclic = true :: boolean()}).
--spec new() -> digraph().
+-spec new() -> digraph:graph().
new() ->
A = #digraph{},
set_type(A), % does not have an opaque term as 1st argument
A.
--spec set_type(digraph()) -> true.
+-spec set_type(digraph:graph()) -> true.
set_type(G) ->
digraph:delete(G).
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/wings/wings_util.erl b/lib/dialyzer/test/opaque_SUITE_data/src/wings/wings_util.erl
index 8f0da1f5dc..ca6bc0ab4a 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/wings/wings_util.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/wings/wings_util.erl
@@ -14,12 +14,12 @@
rel2fam(Rel) ->
sofs:to_external(sofs:relation_to_family(sofs:relation(Rel))).
-%% a definition that does not violate the opaqueness of gb_tree()
+%% a definition that does not violate the opaqueness of gb_trees:tree()
gb_trees_smallest_key(Tree) ->
{Key, _V} = gb_trees:smallest(Tree),
Key.
-%% a definition that violates the opaqueness of gb_tree()
+%% a definition that violates the opaqueness of gb_trees:tree()
gb_trees_largest_key({_, Tree}) ->
largest_key1(Tree).
diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/zoltan_kis2.erl b/lib/dialyzer/test/opaque_SUITE_data/src/zoltan_kis2.erl
index 38c6051c58..e094d1982b 100644
--- a/lib/dialyzer/test/opaque_SUITE_data/src/zoltan_kis2.erl
+++ b/lib/dialyzer/test/opaque_SUITE_data/src/zoltan_kis2.erl
@@ -2,7 +2,7 @@
-export([get/2]).
--opaque data() :: gb_tree().
+-opaque data() :: gb_trees:tree().
-spec get(term(), data()) -> term().
diff --git a/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow3 b/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow3
index d640f564cd..0382627cfc 100644
--- a/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow3
+++ b/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow3
@@ -1,3 +1,3 @@
-ets_insert_control_flow3.erl:21: The call ets:insert(Table::atom() | tid(),{'root',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'root') call in ets_insert_control_flow3.erl on line 12
-ets_insert_control_flow3.erl:23: The call ets:insert(Table::atom() | tid(),{'user',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'user') call in ets_insert_control_flow3.erl on line 13
+ets_insert_control_flow3.erl:21: The call ets:insert(Table::atom() | ets:tid(),{'root',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'root') call in ets_insert_control_flow3.erl on line 12
+ets_insert_control_flow3.erl:23: The call ets:insert(Table::atom() | ets:tid(),{'user',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'user') call in ets_insert_control_flow3.erl on line 13
diff --git a/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow4 b/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow4
index 6f34e75902..22944fd066 100644
--- a/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow4
+++ b/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow4
@@ -1,3 +1,3 @@
-ets_insert_control_flow4.erl:21: The call ets:insert(Table::atom() | tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_control_flow4.erl on line 12, the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_control_flow4.erl on line 13
-ets_insert_control_flow4.erl:23: The call ets:insert(Table::atom() | tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_control_flow4.erl on line 12, the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_control_flow4.erl on line 13
+ets_insert_control_flow4.erl:21: The call ets:insert(Table::atom() | ets:tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_control_flow4.erl on line 12, the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_control_flow4.erl on line 13
+ets_insert_control_flow4.erl:23: The call ets:insert(Table::atom() | ets:tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_control_flow4.erl on line 12, the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_control_flow4.erl on line 13
diff --git a/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow5 b/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow5
index 5af592f43f..e172887f34 100644
--- a/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow5
+++ b/lib/dialyzer/test/race_SUITE_data/results/ets_insert_control_flow5
@@ -1,5 +1,5 @@
-ets_insert_control_flow5.erl:22: The call ets:insert(Table::atom() | tid(),{'welcome_msg',[any(),...]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'welcome_msg') call in ets_insert_control_flow5.erl on line 16
-ets_insert_control_flow5.erl:23: The call ets:insert(Table::atom() | tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_control_flow5.erl on line 12, the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_control_flow5.erl on line 13
-ets_insert_control_flow5.erl:25: The call ets:insert(Table::atom() | tid(),{'welcome_msg',[any(),...]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'welcome_msg') call in ets_insert_control_flow5.erl on line 16
-ets_insert_control_flow5.erl:26: The call ets:insert(Table::atom() | tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_control_flow5.erl on line 12, the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_control_flow5.erl on line 13
+ets_insert_control_flow5.erl:22: The call ets:insert(Table::atom() | ets:tid(),{'welcome_msg',[any(),...]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'welcome_msg') call in ets_insert_control_flow5.erl on line 16
+ets_insert_control_flow5.erl:23: The call ets:insert(Table::atom() | ets:tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_control_flow5.erl on line 12, the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_control_flow5.erl on line 13
+ets_insert_control_flow5.erl:25: The call ets:insert(Table::atom() | ets:tid(),{'welcome_msg',[any(),...]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'welcome_msg') call in ets_insert_control_flow5.erl on line 16
+ets_insert_control_flow5.erl:26: The call ets:insert(Table::atom() | ets:tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_control_flow5.erl on line 12, the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_control_flow5.erl on line 13
diff --git a/lib/dialyzer/test/race_SUITE_data/results/ets_insert_param b/lib/dialyzer/test/race_SUITE_data/results/ets_insert_param
index 58f934a190..6a34337a2c 100644
--- a/lib/dialyzer/test/race_SUITE_data/results/ets_insert_param
+++ b/lib/dialyzer/test/race_SUITE_data/results/ets_insert_param
@@ -1,5 +1,5 @@
-ets_insert_param.erl:13: The call ets:insert(Table::atom() | tid(),{'welcome_msg',[any(),...]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'welcome_msg') call in ets_insert_param.erl on line 10
-ets_insert_param.erl:14: The call ets:insert(Table::atom() | tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_param.erl on line 14, the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_param.erl on line 15
-ets_insert_param.erl:17: The call ets:insert(Table::atom() | tid(),{'welcome_msg',[any(),...]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'welcome_msg') call in ets_insert_param.erl on line 10
-ets_insert_param.erl:18: The call ets:insert(Table::atom() | tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | tid(),'pass') call in ets_insert_param.erl on line 18
+ets_insert_param.erl:13: The call ets:insert(Table::atom() | ets:tid(),{'welcome_msg',[any(),...]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'welcome_msg') call in ets_insert_param.erl on line 10
+ets_insert_param.erl:14: The call ets:insert(Table::atom() | ets:tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_param.erl on line 14, the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_param.erl on line 15
+ets_insert_param.erl:17: The call ets:insert(Table::atom() | ets:tid(),{'welcome_msg',[any(),...]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'welcome_msg') call in ets_insert_param.erl on line 10
+ets_insert_param.erl:18: The call ets:insert(Table::atom() | ets:tid(),{'pass',[pos_integer()]}) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(Table::atom() | ets:tid(),'pass') call in ets_insert_param.erl on line 18
diff --git a/lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes b/lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes
index 173ff3a9f1..bfa33cd296 100644
--- a/lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes
+++ b/lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes
@@ -8,15 +8,15 @@ contracts_with_subtypes.erl:111: The call contracts_with_subtypes:rec_arg({'b',{
contracts_with_subtypes.erl:142: The pattern 1 can never match the type string()
contracts_with_subtypes.erl:145: The pattern 'alpha' can never match the type {'ok',_} | {'ok',_,string()}
contracts_with_subtypes.erl:147: The pattern 42 can never match the type {'ok',_} | {'ok',_,string()}
-contracts_with_subtypes.erl:163: The pattern 'alpha' can never match the type {'ok',X}
-contracts_with_subtypes.erl:165: The pattern 42 can never match the type {'ok',X}
-contracts_with_subtypes.erl:183: The pattern 'alpha' can never match the type {'ok',X}
-contracts_with_subtypes.erl:185: The pattern 42 can never match the type {'ok',X}
+contracts_with_subtypes.erl:163: The pattern 'alpha' can never match the type {'ok',_}
+contracts_with_subtypes.erl:165: The pattern 42 can never match the type {'ok',_}
+contracts_with_subtypes.erl:183: The pattern 'alpha' can never match the type {'ok',_}
+contracts_with_subtypes.erl:185: The pattern 42 can never match the type {'ok',_}
contracts_with_subtypes.erl:202: The pattern 1 can never match the type string()
-contracts_with_subtypes.erl:205: The pattern {'ok', _} can never match the type {'ok',X,string()}
-contracts_with_subtypes.erl:206: The pattern 'alpha' can never match the type {'ok',X,string()}
-contracts_with_subtypes.erl:207: The pattern {'ok', 42} can never match the type {'ok',X,string()}
-contracts_with_subtypes.erl:208: The pattern 42 can never match the type {'ok',X,string()}
+contracts_with_subtypes.erl:205: The pattern {'ok', _} can never match the type {'ok',_,string()}
+contracts_with_subtypes.erl:206: The pattern 'alpha' can never match the type {'ok',_,string()}
+contracts_with_subtypes.erl:207: The pattern {'ok', 42} can never match the type {'ok',_,string()}
+contracts_with_subtypes.erl:208: The pattern 42 can never match the type {'ok',_,string()}
contracts_with_subtypes.erl:234: Function flat_ets_new_t/0 has no local return
contracts_with_subtypes.erl:235: The call contracts_with_subtypes:flat_ets_new(12,[]) breaks the contract (Name,Options) -> atom() when is_subtype(Name,atom()), is_subtype(Options,[Option]), is_subtype(Option,'set' | 'ordered_set' | 'bag' | 'duplicate_bag' | 'public' | 'protected' | 'private' | 'named_table' | {'keypos',integer()} | {'heir',pid(),term()} | {'heir','none'} | {'write_concurrency',boolean()} | {'read_concurrency',boolean()} | 'compressed')
contracts_with_subtypes.erl:23: Invalid type specification for function contracts_with_subtypes:extract2/0. The success typing is () -> 'something'
diff --git a/lib/dialyzer/test/small_SUITE_data/results/predef b/lib/dialyzer/test/small_SUITE_data/results/predef
new file mode 100644
index 0000000000..85e210d6e4
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/results/predef
@@ -0,0 +1,8 @@
+
+predef.erl:19: Invalid type specification for function predef:array/1. The success typing is (array:array(_)) -> array:array(_)
+predef.erl:24: Invalid type specification for function predef:dict/1. The success typing is (dict:dict(_,_)) -> dict:dict(_,_)
+predef.erl:29: Invalid type specification for function predef:digraph/1. The success typing is (digraph:graph()) -> [any()]
+predef.erl:39: Invalid type specification for function predef:gb_set/1. The success typing is (gb_sets:set(_)) -> gb_sets:set(_)
+predef.erl:44: Invalid type specification for function predef:gb_tree/1. The success typing is (gb_trees:tree(_,_)) -> gb_trees:tree(_,_)
+predef.erl:49: Invalid type specification for function predef:queue/1. The success typing is (queue:queue(_)) -> queue:queue(_)
+predef.erl:54: Invalid type specification for function predef:set/1. The success typing is (sets:set(_)) -> sets:set(_)
diff --git a/lib/dialyzer/test/small_SUITE_data/results/record_construct b/lib/dialyzer/test/small_SUITE_data/results/record_construct
index c0110b144f..4c40fec298 100644
--- a/lib/dialyzer/test/small_SUITE_data/results/record_construct
+++ b/lib/dialyzer/test/small_SUITE_data/results/record_construct
@@ -1,6 +1,6 @@
record_construct.erl:15: Function t_opa/0 has no local return
-record_construct.erl:16: Record construction #r_opa{b::gb_set(),c::42,e::'false'} violates the declared type of field c::boolean()
+record_construct.erl:16: Record construction #r_opa{b::gb_sets:set(_),c::42,e::'false'} violates the declared type of field c::boolean()
record_construct.erl:20: Function t_rem/0 has no local return
record_construct.erl:21: Record construction #r_rem{a::'gazonk'} violates the declared type of field a::string()
record_construct.erl:6: Function t_loc/0 has no local return
diff --git a/lib/dialyzer/test/small_SUITE_data/src/on_load.erl b/lib/dialyzer/test/small_SUITE_data/src/on_load.erl
index 16533a9caa..7242ac2016 100644
--- a/lib/dialyzer/test/small_SUITE_data/src/on_load.erl
+++ b/lib/dialyzer/test/small_SUITE_data/src/on_load.erl
@@ -1,4 +1,6 @@
%%% This is to ensure that "on_load" functions are never reported as unused.
+%%% In addition, all functions called by a function in an on_load attribute
+%%% should be considered as called by an entry point of the module.
-module(on_load).
@@ -8,4 +10,7 @@
foo() -> ok.
-bar() -> ok.
+bar() -> gazonk(17).
+
+gazonk(N) when N < 42 -> gazonk(N+1);
+gazonk(42) -> ok.
diff --git a/lib/dialyzer/test/small_SUITE_data/src/predef.erl b/lib/dialyzer/test/small_SUITE_data/src/predef.erl
new file mode 100644
index 0000000000..c2364fd1c2
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/predef.erl
@@ -0,0 +1,67 @@
+-module(predef).
+
+-export([array/1, dict/1, digraph/1, digraph2/1, gb_set/1, gb_tree/1,
+ queue/1, set/1, tid/0, tid2/0]).
+
+-export_type([array/0, digraph/0, gb_set/0]).
+
+%% Before R17B local re-definitions of pre-defined opaque types were
+%% ignored but did not generate any warning.
+-opaque array() :: atom().
+-opaque digraph() :: atom().
+-opaque gb_set() :: atom().
+-type dict() :: atom().
+-type gb_tree() :: atom().
+-type queue() :: atom().
+-type set() :: atom().
+-type tid() :: atom().
+
+-spec array(array()) -> array:array().
+
+array(A) ->
+ array:relax(A).
+
+-spec dict(dict()) -> dict:dict().
+
+dict(D) ->
+ dict:store(1, a, D).
+
+-spec digraph(digraph()) -> [digraph:edge()].
+
+digraph(G) ->
+ digraph:edges(G).
+
+-spec digraph2(digraph:graph()) -> [digraph:edge()].
+
+digraph2(G) ->
+ digraph:edges(G).
+
+-spec gb_set(gb_set()) -> gb_sets:set().
+
+gb_set(S) ->
+ gb_sets:balance(S).
+
+-spec gb_tree(gb_tree()) -> gb_trees:tree().
+
+gb_tree(S) ->
+ gb_trees:balance(S).
+
+-spec queue(queue()) -> queue:queue().
+
+queue(Q) ->
+ queue:reverse(Q).
+
+-spec set(set()) -> sets:set().
+
+set(S) ->
+ sets:union([S]).
+
+-spec tid() -> tid().
+
+tid() ->
+ ets:new(tid, []).
+
+-spec tid2() -> ets:tid().
+
+tid2() ->
+ ets:new(tid, []).
diff --git a/lib/dialyzer/test/small_SUITE_data/src/predef2.erl b/lib/dialyzer/test/small_SUITE_data/src/predef2.erl
new file mode 100644
index 0000000000..b1d941a49a
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/predef2.erl
@@ -0,0 +1,56 @@
+-module(predef2).
+
+-export([array/1, dict/1, digraph/1, digraph2/1, gb_set/1, gb_tree/1,
+ queue/1, set/1, tid/0, tid2/0]).
+
+-export_type([array/0, digraph/0, gb_set/0]).
+
+-spec array(array()) -> array:array().
+
+array(A) ->
+ array:relax(A).
+
+-spec dict(dict()) -> dict:dict().
+
+dict(D) ->
+ dict:store(1, a, D).
+
+-spec digraph(digraph()) -> [digraph:edge()].
+
+digraph(G) ->
+ digraph:edges(G).
+
+-spec digraph2(digraph:graph()) -> [digraph:edge()].
+
+digraph2(G) ->
+ digraph:edges(G).
+
+-spec gb_set(gb_set()) -> gb_sets:set().
+
+gb_set(S) ->
+ gb_sets:balance(S).
+
+-spec gb_tree(gb_tree()) -> gb_trees:tree().
+
+gb_tree(S) ->
+ gb_trees:balance(S).
+
+-spec queue(queue()) -> queue:queue().
+
+queue(Q) ->
+ queue:reverse(Q).
+
+-spec set(set()) -> sets:set().
+
+set(S) ->
+ sets:union([S]).
+
+-spec tid() -> tid().
+
+tid() ->
+ ets:new(tid, []).
+
+-spec tid2() -> ets:tid().
+
+tid2() ->
+ ets:new(tid, []).
diff --git a/lib/dialyzer/test/small_SUITE_data/src/record_construct.erl b/lib/dialyzer/test/small_SUITE_data/src/record_construct.erl
index 54cc2601bd..b250c6ee65 100644
--- a/lib/dialyzer/test/small_SUITE_data/src/record_construct.erl
+++ b/lib/dialyzer/test/small_SUITE_data/src/record_construct.erl
@@ -7,7 +7,7 @@ t_loc() ->
#r_loc{}.
-record(r_opa, {a :: atom(),
- b = gb_sets:new() :: gb_set(),
+ b = gb_sets:new() :: gb_sets:set(),
c = 42 :: boolean(),
d, % untyped on purpose
e = false :: boolean()}).
diff --git a/lib/dialyzer/test/unmatched_returns_SUITE_data/dialyzer_options b/lib/dialyzer/test/unmatched_returns_SUITE_data/dialyzer_options
new file mode 100644
index 0000000000..49ac917f61
--- /dev/null
+++ b/lib/dialyzer/test/unmatched_returns_SUITE_data/dialyzer_options
@@ -0,0 +1 @@
+{dialyzer_options, [{warnings, [unmatched_returns]}]}.
diff --git a/lib/dialyzer/test/unmatched_returns_SUITE_data/results/lc_warnings b/lib/dialyzer/test/unmatched_returns_SUITE_data/results/lc_warnings
new file mode 100644
index 0000000000..24b44c1b5c
--- /dev/null
+++ b/lib/dialyzer/test/unmatched_returns_SUITE_data/results/lc_warnings
@@ -0,0 +1,5 @@
+
+lc_warnings.erl:32: Expression produces a value of type [opaque_atom_adt:opaque_atom()], but this value is unmatched
+lc_warnings.erl:43: Expression produces a value of type [array:array(_)], but this value is unmatched
+lc_warnings.erl:65: Expression produces a value of type [lc_warnings:opaque_tuple()], but this value is unmatched
+lc_warnings.erl:7: Expression produces a value of type ['ok' | {'error',atom()}], but this value is unmatched
diff --git a/lib/dialyzer/test/unmatched_returns_SUITE_data/src/lc_warnings/lc_warnings.erl b/lib/dialyzer/test/unmatched_returns_SUITE_data/src/lc_warnings/lc_warnings.erl
new file mode 100644
index 0000000000..cb01a8fde3
--- /dev/null
+++ b/lib/dialyzer/test/unmatched_returns_SUITE_data/src/lc_warnings/lc_warnings.erl
@@ -0,0 +1,95 @@
+-module(lc_warnings).
+-compile([export_all]).
+
+close(Fs) ->
+ %% There should be a warning since we ignore a potential
+ %% {error,Error} return from file:close/1.
+ [file:close(F) || F <- Fs],
+
+ %% No warning because the type of unmatched return will be ['ok']
+ %% (which is a list of a simple type).
+ [ok = file:close(F) || F <- Fs],
+
+ %% Suppressed.
+ _ = [file:close(F) || F <- Fs],
+ ok.
+
+format(X) ->
+ %% No warning since the result of the list comprehension is
+ %% a list of simple.
+ [io:format("~p\n", [E]) || E <- X],
+
+ %% Warning explicitly suppressed.
+ _ = [io:format("~p\n", [E]) || E <- X],
+ ok.
+
+opaque1() ->
+ List = gen_atom(),
+ %% This is a list of an externally defined opaque type. Since
+ %% we are not allowed to peek inside opaque types, there should
+ %% be a warning (even though the type in this case happens to be
+ %% an atom).
+ [E || E <- List],
+
+ %% Suppressed.
+ _ = [E || E <- List],
+ ok.
+
+opaque2() ->
+ List = gen_array(),
+ %% This is an list of an externally defined opaque type. Since
+ %% we are not allowed to peek inside opaque types, there should
+ %% be a warning.
+ [E || E <- List],
+
+ %% Suppressed.
+ _ = [E || E <- List],
+ ok.
+
+opaque3() ->
+ List = gen_int(),
+
+ %% No warning, since we are allowed to look into the type and can
+ %% see that it is a simple type.
+ [E || E <- List],
+
+ %% Suppressed.
+ _ = [E || E <- List],
+ ok.
+
+opaque4() ->
+ List = gen_tuple(),
+
+ %% There should be a warning, since we are allowed to look inside
+ %% the opaque type and see that it is a tuple (non-simple).
+ [E || E <- List],
+
+ %% Suppressed.
+ _ = [E || E <- List],
+ ok.
+
+gen_atom() ->
+ [opaque_atom_adt:atom(ok)].
+
+gen_array() ->
+ [array:new()].
+
+
+gen_int() ->
+ [opaque_int(42)].
+
+gen_tuple() ->
+ [opaque_tuple(x, 25)].
+
+-opaque opaque_int() :: integer().
+
+-spec opaque_int(integer()) -> opaque_int().
+
+opaque_int(Int) -> Int.
+
+-opaque opaque_tuple() :: {any(),any()}.
+
+-spec opaque_tuple(any(), any()) -> opaque_tuple().
+
+opaque_tuple(X, Y) ->
+ {X,Y}.
diff --git a/lib/dialyzer/test/unmatched_returns_SUITE_data/src/lc_warnings/opaque_atom_adt.erl b/lib/dialyzer/test/unmatched_returns_SUITE_data/src/lc_warnings/opaque_atom_adt.erl
new file mode 100644
index 0000000000..b5b51fe75b
--- /dev/null
+++ b/lib/dialyzer/test/unmatched_returns_SUITE_data/src/lc_warnings/opaque_atom_adt.erl
@@ -0,0 +1,9 @@
+-module(opaque_atom_adt).
+-export([atom/1]).
+
+-opaque opaque_atom() :: atom().
+
+-spec atom(atom()) -> opaque_atom().
+
+atom(Atom) ->
+ Atom.