aboutsummaryrefslogtreecommitdiffstats
path: root/lib/dialyzer/test/map_SUITE_data
diff options
context:
space:
mode:
authorHans Bolinder <[email protected]>2017-09-01 11:44:36 +0200
committerHans Bolinder <[email protected]>2017-09-12 13:32:29 +0200
commit3d05725ceb26611ac8c19cc01df715089dc322d5 (patch)
treeeeae656118cbb70744af4388cf9575b1c0cad481 /lib/dialyzer/test/map_SUITE_data
parentc3f50bc462cc850bdef6b77d1a7a58091a75c936 (diff)
downloadotp-3d05725ceb26611ac8c19cc01df715089dc322d5.tar.gz
otp-3d05725ceb26611ac8c19cc01df715089dc322d5.tar.bz2
otp-3d05725ceb26611ac8c19cc01df715089dc322d5.zip
dialyzer: Modify handling of singleton map key types
The test case loop.erl shows that there is a problem with certain singleton key types. Here the internal representation toggles between #{a | b => ...} and #{a => ..., b => ...} The choice is to turn #{a | b => ...} into #{a => ..., b => ...} early (t_from_form()). The aim is to keep as much info as possible (in pairs). However, including complex singleton keys (tuples, maps) in this scheme is potentially too costly, and a bit complicated. So one more choice is made: let atoms and number (and nothing else) be singleton types, and let complex keys go into the default key.
Diffstat (limited to 'lib/dialyzer/test/map_SUITE_data')
-rw-r--r--lib/dialyzer/test/map_SUITE_data/results/loop4
-rw-r--r--lib/dialyzer/test/map_SUITE_data/results/opaque_key1
-rw-r--r--lib/dialyzer/test/map_SUITE_data/src/loop.erl92
-rw-r--r--lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl2
4 files changed, 98 insertions, 1 deletions
diff --git a/lib/dialyzer/test/map_SUITE_data/results/loop b/lib/dialyzer/test/map_SUITE_data/results/loop
new file mode 100644
index 0000000000..2e956a5709
--- /dev/null
+++ b/lib/dialyzer/test/map_SUITE_data/results/loop
@@ -0,0 +1,4 @@
+
+loop.erl:63: The call loop:start_timer(#loop{state::'idle' | 'waiting',queues::#{'category1'=>#queue{limit::non_neg_integer(),buffer::[any()]}, 'category2'=>#queue{limit::non_neg_integer(),buffer::[any()]}},counters::#{'counter1':=10, 2:=10}}) does not have a term of type #loop{state::'idle' | 'waiting',timer::timer:tref(),queues::#{'category1'=>#queue{limit::non_neg_integer(),buffer::[any()]}, 'category2'=>#queue{limit::non_neg_integer(),buffer::[any()]}},counters::#{'counter1'=>non_neg_integer(), 2=>non_neg_integer()}} (with opaque subterms) as 1st argument
+loop.erl:67: Function wait/1 has no local return
+loop.erl:85: Record construction #loop{state::'idle' | 'waiting',timer::{'error',_} | {'ok',timer:tref()},queues::#{'category1'=>#queue{limit::non_neg_integer(),buffer::[any()]}, 'category2'=>#queue{limit::non_neg_integer(),buffer::[any()]}},counters::#{'counter1'=>non_neg_integer(), 2=>non_neg_integer()}} violates the declared type of field timer::'undefined' | timer:tref()
diff --git a/lib/dialyzer/test/map_SUITE_data/results/opaque_key b/lib/dialyzer/test/map_SUITE_data/results/opaque_key
index 2ae0e0c5c6..8d6379b5e0 100644
--- a/lib/dialyzer/test/map_SUITE_data/results/opaque_key
+++ b/lib/dialyzer/test/map_SUITE_data/results/opaque_key
@@ -1,4 +1,5 @@
+opaque_key_adt.erl:35: Invalid type specification for function opaque_key_adt:s2/0. The success typing is () -> #{3:='a'}
opaque_key_adt.erl:41: Invalid type specification for function opaque_key_adt:s4/0. The success typing is () -> #{1:='a'}
opaque_key_adt.erl:44: Invalid type specification for function opaque_key_adt:s5/0. The success typing is () -> #{2:=3}
opaque_key_adt.erl:56: Invalid type specification for function opaque_key_adt:smt1/0. The success typing is () -> #{3:='a'}
diff --git a/lib/dialyzer/test/map_SUITE_data/src/loop.erl b/lib/dialyzer/test/map_SUITE_data/src/loop.erl
new file mode 100644
index 0000000000..c861052d9f
--- /dev/null
+++ b/lib/dialyzer/test/map_SUITE_data/src/loop.erl
@@ -0,0 +1,92 @@
+-module(loop).
+
+-export([timeout/2]).
+
+-export([idle/2, waiting/2]).
+
+-type request_category() :: category1 | category2.
+
+-type counter() :: counter1 | 2.
+
+-type counters() :: #{counter() => non_neg_integer()}.
+
+-record(queue, {limit = 0 :: non_neg_integer(),
+ buffer = [] :: list()}).
+
+-type request_queues() :: #{request_category() => #queue{}}.
+
+-record(?MODULE,
+ {state = idle :: idle | waiting,
+ timer = undefined :: undefined | timer:tref(),
+ queues = #{category1 => #queue{},
+ category2 => #queue{}} :: request_queues(),
+ counters = new_counters() :: counters()}).
+-spec timeout(Ref, Timer :: timer:tref()) -> {noreply, Ref}.
+timeout(Ref, Timer) ->
+ handle_message(Ref, {timeout, Timer}).
+
+-type message() :: {reset, request_category()}
+ | {timeout, timer:tref()}.
+
+-spec handle_message(Ref, Message :: message()) ->
+ {reply, boolean(), Ref} | {noreply, Ref}.
+handle_message(Ref, Msg) ->
+ MV = #?MODULE{state = State} = get(mv),
+ case apply(?MODULE, State, [Msg, MV]) of
+ {reply, Result, NewMV} ->
+ put(mv, NewMV),
+ {reply, Result, Ref};
+ {noreply, NewMV} ->
+ put(mv, NewMV),
+ {noreply, Ref}
+ end.
+
+-spec idle(Message :: message(), #?MODULE{}) ->
+ {reply, boolean(), #?MODULE{}} | {noreply, #?MODULE{}}.
+idle({reset, Category}, MV = #?MODULE{queues = Queues}) ->
+ case Queues of
+ #{Category := #queue{limit = 0}} ->
+ {reply, false, MV};
+ _ ->
+ wait(MV)
+ end;
+idle(_, MV) ->
+ {noreply, MV}.
+
+-spec waiting(Message :: message(), #?MODULE{}) ->
+ {reply, boolean(), #?MODULE{}} | {noreply, #?MODULE{}}.
+waiting({reset, _Category}, MV = #?MODULE{}) ->
+ NewMV = stop_timer(MV),
+ {noreply, NewMV#?MODULE{state = idle}};
+waiting({timeout, Timer}, #?MODULE{timer = Timer} = MV) ->
+ %% The opaque warning is an effect of the call to timer:send_after().
+ {noreply, start_timer(MV#?MODULE{timer = undefined,
+ counters = new_counters()})}.
+
+-spec wait(#?MODULE{}) -> {noreply, #?MODULE{}}.
+wait(MV) ->
+ {noreply, start_timer(MV#?MODULE{state = waiting})}.
+
+-spec stop_timer(#?MODULE{}) -> #?MODULE{}.
+stop_timer(MV) ->
+ case MV#?MODULE.timer of
+ undefined ->
+ MV;
+ Timer ->
+ timer:cancel(Timer),
+ MV#?MODULE{timer = undefined}
+ end.
+
+-spec start_timer(MV :: #?MODULE{}) -> #?MODULE{}.
+start_timer(MV) ->
+ case MV#?MODULE.timer of
+ undefined ->
+ %% Note: timer:send_after() returns {ok, TRef} | {error, _}.
+ MV#?MODULE{timer = timer:send_after(1000, ?MODULE)};
+ _Timer ->
+ start_timer(stop_timer(MV))
+ end.
+
+-spec new_counters() -> counters().
+new_counters() ->
+ #{counter1 => 10, 2 => 10}.
diff --git a/lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl b/lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl
index b98c713c6b..9228cfa413 100644
--- a/lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl
+++ b/lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl
@@ -33,7 +33,7 @@ s0() -> #{}.
s1() -> #{3 => a}.
-spec s2() -> s(atom() | 3).
-s2() -> #{3 => a}. %% Contract breakage (not found)
+s2() -> #{3 => a}. %% Contract breakage
-spec s3() -> s(atom() | 3).
s3() -> #{3 => 5, a => 6, 7 => 8}.