diff options
Diffstat (limited to 'lib/stdlib')
41 files changed, 1533 insertions, 811 deletions
diff --git a/lib/stdlib/doc/src/Makefile b/lib/stdlib/doc/src/Makefile index ff77c3eea0..f5d8b2072a 100644 --- a/lib/stdlib/doc/src/Makefile +++ b/lib/stdlib/doc/src/Makefile @@ -76,7 +76,6 @@ XML_REF3_FILES = \ ms_transform.xml \ orddict.xml \ ordsets.xml \ - pg.xml \ pool.xml \ proc_lib.xml \ proplists.xml \ diff --git a/lib/stdlib/doc/src/binary.xml b/lib/stdlib/doc/src/binary.xml index 2410f1f9b8..0fde763bfb 100644 --- a/lib/stdlib/doc/src/binary.xml +++ b/lib/stdlib/doc/src/binary.xml @@ -5,7 +5,7 @@ <header> <copyright> <year>2009</year> - <year>2013</year> + <year>2014</year> <holder>Ericsson AB, All Rights Reserved</holder> </copyright> <legalnotice> @@ -450,7 +450,7 @@ store(Binary, GBSet) -> </code> <p>In this example, we chose to copy the binary content before - inserting it in the <c>gb_set()</c> if it references a binary more than + inserting it in the <c>gb_sets:set()</c> if it references a binary more than twice the size of the data we're going to keep. Of course different rules for when copying will apply to different programs.</p> diff --git a/lib/stdlib/doc/src/gen_event.xml b/lib/stdlib/doc/src/gen_event.xml index b9dfff833e..5c96d6e576 100644 --- a/lib/stdlib/doc/src/gen_event.xml +++ b/lib/stdlib/doc/src/gen_event.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2013</year> + <year>1996</year><year>2014</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -44,6 +44,7 @@ <pre> gen_event module Callback module ---------------- --------------- +gen_event:start gen_event:start_link -----> - gen_event:add_handler @@ -177,7 +178,7 @@ gen_event:stop -----> Module:terminate/2 <name>add_handler(EventMgrRef, Handler, Args) -> Result</name> <fsummary>Add an event handler to a generic event manager.</fsummary> <type> - <v>EventMgr = Name | {Name,Node} | {global,GlobalName} + <v>EventMgrRef = Name | {Name,Node} | {global,GlobalName} | {via,Module,ViaName} | pid()</v> <v> Name = Node = atom()</v> <v> GlobalName = ViaName = term()</v> @@ -223,7 +224,7 @@ gen_event:stop -----> Module:terminate/2 <name>add_sup_handler(EventMgrRef, Handler, Args) -> Result</name> <fsummary>Add a supervised event handler to a generic event manager.</fsummary> <type> - <v>EventMgr = Name | {Name,Node} | {global,GlobalName} + <v>EventMgrRef = Name | {Name,Node} | {global,GlobalName} | {via,Module,ViaName} | pid()</v> <v> Name = Node = atom()</v> <v> GlobalName = ViaName = term()</v> @@ -456,19 +457,37 @@ gen_event:stop -----> Module:terminate/2 </func> <func> <name>stop(EventMgrRef) -> ok</name> + <name>stop(EventMgrRef, Reason, Timeout) -> ok</name> <fsummary>Terminate a generic event manager.</fsummary> <type> <v>EventMgrRef = Name | {Name,Node} | {global,GlobalName} | {via,Module,ViaName} | pid()</v> <v>Name = Node = atom()</v> <v>GlobalName = ViaName = term()</v> + <v>Reason = term()</v> + <v>Timeout = int()>0 | infinity</v> </type> <desc> - <p>Terminates the event manager <c>EventMgrRef</c>. Before - terminating, the event manager will call - <c>Module:terminate(stop,...)</c> for each installed event - handler.</p> - <p>See <c>add_handler/3</c> for a description of the argument.</p> + <p>Orders the event manager <c>EventMgrRef</c> to exit with + the given <c>Reason</c> and waits for it to + terminate. Before terminating, the gen_event will call + <seealso marker="#Module:terminate/2">Module:terminate(stop,...)</seealso> + for each installed event handler.</p> + <p>The function returns <c>ok</c> if the event manager terminates + with the expected reason. Any other reason than <c>normal</c>, + <c>shutdown</c>, or <c>{shutdown,Term}</c> will cause an + error report to be issued using + <seealso marker="kernel:error_logger#format/2">error_logger:format/2</seealso>. + The default <c>Reason</c> is <c>normal</c>.</p> + <p><c>Timeout</c> is an integer greater than zero which + specifies how many milliseconds to wait for the event manager to + terminate, or the atom <c>infinity</c> to wait + indefinitely. The default value is <c>infinity</c>. If the + event manager has not terminated within the specified time, a + <c>timeout</c> exception is raised.</p> + <p>If the process does not exist, a <c>noproc</c> exception + is raised.</p> + <p>See <c>add_handler/3</c> for a description of <c>EventMgrRef</c>.</p> </desc> </func> </funcs> diff --git a/lib/stdlib/doc/src/gen_fsm.xml b/lib/stdlib/doc/src/gen_fsm.xml index 848d57f3e6..b1bba3eff0 100644 --- a/lib/stdlib/doc/src/gen_fsm.xml +++ b/lib/stdlib/doc/src/gen_fsm.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2013</year> + <year>1996</year><year>2014</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -43,8 +43,11 @@ <pre> gen_fsm module Callback module -------------- --------------- +gen_fsm:start gen_fsm:start_link -----> Module:init/1 +gen_fsm:stop -----> Module:terminate/3 + gen_fsm:send_event -----> Module:StateName/2 gen_fsm:send_all_state_event -----> Module:handle_event/3 @@ -187,6 +190,39 @@ gen_fsm:sync_send_all_state_event -----> Module:handle_sync_event/4 </desc> </func> <func> + <name>stop(FsmRef) -> ok</name> + <name>stop(FsmRef, Reason, Timeout) -> ok</name> + <fsummary>Synchronously stop a generic FSM.</fsummary> + <type> + <v>FsmRef = Name | {Name,Node} | {global,GlobalName} + | {via,Module,ViaName} | pid()</v> + <v> Node = atom()</v> + <v> GlobalName = ViaName = term()</v> + <v>Reason = term()</v> + <v>Timeout = int()>0 | infinity</v> + </type> + <desc> + <p>Orders a generic FSM to exit with the given <c>Reason</c> + and waits for it to terminate. The gen_fsm will call + <seealso marker="#Module:terminate/3">Module:terminate/3</seealso> + before exiting.</p> + <p>The function returns <c>ok</c> if the generic FSM terminates + with the expected reason. Any other reason than <c>normal</c>, + <c>shutdown</c>, or <c>{shutdown,Term}</c> will cause an + error report to be issued using + <seealso marker="kernel:error_logger#format/2">error_logger:format/2</seealso>. + The default <c>Reason</c> is <c>normal</c>.</p> + <p><c>Timeout</c> is an integer greater than zero which + specifies how many milliseconds to wait for the generic FSM + to terminate, or the atom <c>infinity</c> to wait + indefinitely. The default value is <c>infinity</c>. If the + generic FSM has not terminated within the specified time, a + <c>timeout</c> exception is raised.</p> + <p>If the process does not exist, a <c>noproc</c> exception + is raised.</p> + </desc> + </func> + <func> <name>send_event(FsmRef, Event) -> ok</name> <fsummary>Send an event asynchronously to a generic FSM.</fsummary> <type> @@ -528,7 +564,8 @@ gen_fsm:sync_send_all_state_event -----> Module:handle_sync_event/4 <c>Module:init/1</c> for a description of <c>Timeout</c> and <c>hibernate</c>.</p> <p>If the function returns <c>{stop,Reason,NewStateData}</c>, the gen_fsm will call - <c>Module:terminate(Reason,NewStateData)</c> and terminate.</p> + <c>Module:terminate(Reason,StateName,NewStateData)</c> and + terminate.</p> </desc> </func> <func> @@ -614,7 +651,8 @@ gen_fsm:sync_send_all_state_event -----> Module:handle_sync_event/4 <c>{stop,Reason,NewStateData}</c>, any reply to <c>From</c> must be given explicitly using <c>gen_fsm:reply/2</c>. The gen_fsm will then call - <c>Module:terminate(Reason,NewStateData)</c> and terminate.</p> + <c>Module:terminate(Reason,StateName,NewStateData)</c> and + terminate.</p> </desc> </func> <func> diff --git a/lib/stdlib/doc/src/gen_server.xml b/lib/stdlib/doc/src/gen_server.xml index 62c0394479..a915e567a5 100644 --- a/lib/stdlib/doc/src/gen_server.xml +++ b/lib/stdlib/doc/src/gen_server.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2013</year> + <year>1996</year><year>2014</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -43,8 +43,11 @@ <pre> gen_server module Callback module ----------------- --------------- +gen_server:start gen_server:start_link -----> Module:init/1 +gen_server:stop -----> Module:terminate/2 + gen_server:call gen_server:multi_call -----> Module:handle_call/3 @@ -184,6 +187,40 @@ gen_server:abcast -----> Module:handle_cast/2 </desc> </func> <func> + <name>stop(ServerRef) -> ok</name> + <name>stop(ServerRef, Reason, Timeout) -> ok</name> + <fsummary>Synchronously stop a generic server.</fsummary> + <type> + <v>ServerRef = Name | {Name,Node} | {global,GlobalName} + | {via,Module,ViaName} | pid()</v> + <v> Node = atom()</v> + <v> GlobalName = ViaName = term()</v> + <v>Reason = term()</v> + <v>Timeout = int()>0 | infinity</v> + </type> + <desc> + <p>Orders a generic server to exit with the + given <c>Reason</c> and waits for it to terminate. The + gen_server will call + <seealso marker="#Module:terminate/2">Module:terminate/2</seealso> + before exiting.</p> + <p>The function returns <c>ok</c> if the server terminates + with the expected reason. Any other reason than <c>normal</c>, + <c>shutdown</c>, or <c>{shutdown,Term}</c> will cause an + error report to be issued using + <seealso marker="kernel:error_logger#format/2">error_logger:format/2</seealso>. + The default <c>Reason</c> is <c>normal</c>.</p> + <p><c>Timeout</c> is an integer greater than zero which + specifies how many milliseconds to wait for the server to + terminate, or the atom <c>infinity</c> to wait + indefinitely. The default value is <c>infinity</c>. If the + server has not terminated within the specified time, a + <c>timeout</c> exception is raised.</p> + <p>If the process does not exist, a <c>noproc</c> exception + is raised.</p> + </desc> + </func> + <func> <name>call(ServerRef, Request) -> Reply</name> <name>call(ServerRef, Request, Timeout) -> Reply</name> <fsummary>Make a synchronous call to a generic server.</fsummary> diff --git a/lib/stdlib/doc/src/pg.xml b/lib/stdlib/doc/src/pg.xml deleted file mode 100644 index a3b69884b6..0000000000 --- a/lib/stdlib/doc/src/pg.xml +++ /dev/null @@ -1,114 +0,0 @@ -<?xml version="1.0" encoding="utf-8" ?> -<!DOCTYPE erlref SYSTEM "erlref.dtd"> - -<erlref> - <header> - <copyright> - <year>1996</year> - <year>2014</year> - <holder>Ericsson AB, All Rights Reserved</holder> - </copyright> - <legalnotice> - 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. - - The Initial Developer of the Original Code is Ericsson AB. - </legalnotice> - - <title>pg</title> - <prepared></prepared> - <docno></docno> - <date></date> - <rev></rev> - </header> - <module>pg</module> - <modulesummary>Distributed, Named Process Groups</modulesummary> - <description> - <warning> - <p>This module is deprecated and will be removed in Erlang/OTP 18.</p> - </warning> - <p>This (experimental) module implements process groups. A process - group is a group of processes that can be accessed by a common - name. For example, a group named <c>foobar</c> can include a set - of processes as members of this group and they can be located on - different nodes.</p> - <p>When messages are sent to the named group, all members of - the group receive the message. The messages are serialized. If - the process <c>P1</c> sends the message <c>M1</c> to the group, - and process <c>P2</c> simultaneously sends message <c>M2</c>, then - all members of the group receive the two messages in the same - order. If members of a group terminate, they are automatically - removed from the group.</p> - <p>This module is not complete. The module is inspired by the ISIS - system and the causal order protocol of the ISIS system should - also be implemented. At the moment, all messages are serialized - by sending them through a group master process.</p> - </description> - <funcs> - <func> - <name name="create" arity="1"/> - <fsummary>Create an empty group</fsummary> - <desc> - <p>Creates an empty group named <c><anno>PgName</anno></c> on the current - node.</p> - </desc> - </func> - <func> - <name name="create" arity="2"/> - <fsummary>Create an empty group on another node</fsummary> - <desc> - <p>Creates an empty group named <c><anno>PgName</anno></c> on the node - <c><anno>Node</anno></c>.</p> - </desc> - </func> - <func> - <name name="join" arity="2"/> - <fsummary>Join a pid to a process group</fsummary> - <desc> - <p>Joins the pid <c><anno>Pid</anno></c> to the process group - <c><anno>PgName</anno></c>. - Returns a list of all old members of the group.</p> - </desc> - </func> - <func> - <name name="send" arity="2"/> - <fsummary>Send a message to all members of a process group</fsummary> - <desc> - <p>Sends the tuple <c>{pg_message, From, PgName, Msg}</c> to - all members of the process group <c><anno>PgName</anno></c>.</p> - <p>Failure: <c>{badarg, {<anno>PgName</anno>, <anno>Msg</anno>}}</c> - if <c><anno>PgName</anno></c> is - not a process group (a globally registered name).</p> - </desc> - </func> - <func> - <name name="esend" arity="2"/> - <fsummary>Send a message to all members of a process group, except ourselves</fsummary> - <desc> - <p>Sends the tuple <c>{pg_message, From, PgName, Msg}</c> to - all members of the process group <c><anno>PgName</anno></c>, except - ourselves.</p> - <p>Failure: <c>{badarg, {<anno>PgName</anno>, <anno>Msg</anno>}}</c> - if <c><anno>PgName</anno></c> is - not a process group (a globally registered name).</p> - </desc> - </func> - <func> - <name name="members" arity="1"/> - <fsummary>Return a list of all members of a process group</fsummary> - <desc> - <p>Returns a list of all members of the process group - <c>PgName</c>.</p> - </desc> - </func> - </funcs> -</erlref> - diff --git a/lib/stdlib/doc/src/proc_lib.xml b/lib/stdlib/doc/src/proc_lib.xml index 5bf5744622..f27a974242 100644 --- a/lib/stdlib/doc/src/proc_lib.xml +++ b/lib/stdlib/doc/src/proc_lib.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2013</year> + <year>1996</year><year>2014</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -298,6 +298,40 @@ init(Parent) -> <c>proc_lib</c> functions.</p> </desc> </func> + <func> + <name name="stop" arity="1"/> + <fsummary>Terminate a process synchronously.</fsummary> + <type variable="Process"/> + <desc> + <p>Equivalent to <seealso marker="#stop/3">stop(Process, + normal, infinity)</seealso>.</p> + </desc> + </func> + <func> + <name name="stop" arity="3"/> + <fsummary>Terminate a process synchronously.</fsummary> + <type variable="Process"/> + <type variable="Reason"/> + <type variable="Timeout"/> + <desc> + <p>Orders the process to exit with the given <c>Reason</c> and + waits for it to terminate.</p> + <p>The function returns <c>ok</c> if the process exits with + the given <c>Reason</c> within <c>Timeout</c> + milliseconds.</p> + <p>If the call times out, a <c>timeout</c> exception is + raised.</p> + <p>If the process does not exist, a <c>noproc</c> + exception is raised.</p> + <p>The implementation of this function is based on the + <c>terminate</c> system message, and requires that the + process handles system messages correctly. + See <seealso marker="sys">sys(3)</seealso> + and <seealso marker="doc/design_principles:spec_proc">OTP + Design Principles</seealso> for information about system + messages.</p> + </desc> + </func> </funcs> <section> diff --git a/lib/stdlib/doc/src/ref_man.xml b/lib/stdlib/doc/src/ref_man.xml index 6c35578bdf..ea4009dc3e 100644 --- a/lib/stdlib/doc/src/ref_man.xml +++ b/lib/stdlib/doc/src/ref_man.xml @@ -73,7 +73,6 @@ <xi:include href="ms_transform.xml"/> <xi:include href="orddict.xml"/> <xi:include href="ordsets.xml"/> - <xi:include href="pg.xml"/> <xi:include href="pool.xml"/> <xi:include href="proc_lib.xml"/> <xi:include href="proplists.xml"/> diff --git a/lib/stdlib/doc/src/specs.xml b/lib/stdlib/doc/src/specs.xml index 60a04ed5e7..fd77b52da6 100644 --- a/lib/stdlib/doc/src/specs.xml +++ b/lib/stdlib/doc/src/specs.xml @@ -39,7 +39,6 @@ <xi:include href="../specs/specs_ms_transform.xml"/> <xi:include href="../specs/specs_orddict.xml"/> <xi:include href="../specs/specs_ordsets.xml"/> - <xi:include href="../specs/specs_pg.xml"/> <xi:include href="../specs/specs_pool.xml"/> <xi:include href="../specs/specs_proc_lib.xml"/> <xi:include href="../specs/specs_proplists.xml"/> diff --git a/lib/stdlib/doc/src/sys.xml b/lib/stdlib/doc/src/sys.xml index 19605f325b..cf7df54d1d 100644 --- a/lib/stdlib/doc/src/sys.xml +++ b/lib/stdlib/doc/src/sys.xml @@ -359,6 +359,17 @@ installed.</p> </desc> </func> + <func> + <name name="terminate" arity="2"/> + <name name="terminate" arity="3"/> + <fsummary>Terminate the process</fsummary> + <desc> + <p>This function orders the process to terminate with the + given <c><anno>Reason</anno></c>. The termination is done + asynchronously, so there is no guarantee that the process is + actually terminated when the function returns.</p> + </desc> + </func> </funcs> <section> diff --git a/lib/stdlib/src/Makefile b/lib/stdlib/src/Makefile index 9ab2cd4134..1b3744b6fb 100644 --- a/lib/stdlib/src/Makefile +++ b/lib/stdlib/src/Makefile @@ -97,7 +97,6 @@ MODULES= \ otp_internal \ orddict \ ordsets \ - pg \ re \ pool \ proc_lib \ diff --git a/lib/stdlib/src/erl_internal.erl b/lib/stdlib/src/erl_internal.erl index edfb097de0..2bf8b86c23 100644 --- a/lib/stdlib/src/erl_internal.erl +++ b/lib/stdlib/src/erl_internal.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2013. All Rights Reserved. +%% Copyright Ericsson AB 1998-2014. 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 @@ -51,6 +51,8 @@ type_test/2,new_type_test/2,old_type_test/2,old_bif/2]). -export([arith_op/2,bool_op/2,comp_op/2,list_op/2,send_op/2,op_type/2]). +-export([is_type/2]). + %%--------------------------------------------------------------------------- %% Erlang builtin functions allowed in guards. @@ -293,6 +295,7 @@ bif(garbage_collect, 1) -> true; bif(garbage_collect, 2) -> true; bif(get, 0) -> true; bif(get, 1) -> true; +bif(get_keys, 0) -> true; bif(get_keys, 1) -> true; bif(group_leader, 0) -> true; bif(group_leader, 2) -> true; @@ -530,3 +533,53 @@ old_bif(unlink, 1) -> true; old_bif(unregister, 1) -> true; old_bif(whereis, 1) -> true; old_bif(Name, A) when is_atom(Name), is_integer(A) -> false. + +-spec is_type(Name, NumberOfTypeVariables) -> boolean() when + Name :: atom(), + NumberOfTypeVariables :: non_neg_integer(). +%% Returns true if Name/NumberOfTypeVariables is a predefined type. + +is_type(any, 0) -> true; +is_type(arity, 0) -> true; +is_type(atom, 0) -> true; +is_type(binary, 0) -> true; +is_type(bitstring, 0) -> true; +is_type(bool, 0) -> true; +is_type(boolean, 0) -> true; +is_type(byte, 0) -> true; +is_type(char, 0) -> true; +is_type(float, 0) -> true; +is_type(function, 0) -> true; +is_type(identifier, 0) -> true; +is_type(integer, 0) -> true; +is_type(iodata, 0) -> true; +is_type(iolist, 0) -> true; +is_type(list, 0) -> true; +is_type(list, 1) -> true; +is_type(map, 0) -> true; +is_type(maybe_improper_list, 0) -> true; +is_type(maybe_improper_list, 2) -> true; +is_type(mfa, 0) -> true; +is_type(module, 0) -> true; +is_type(neg_integer, 0) -> true; +is_type(nil, 0) -> true; +is_type(no_return, 0) -> true; +is_type(node, 0) -> true; +is_type(non_neg_integer, 0) -> true; +is_type(none, 0) -> true; +is_type(nonempty_improper_list, 2) -> true; +is_type(nonempty_list, 0) -> true; +is_type(nonempty_list, 1) -> true; +is_type(nonempty_maybe_improper_list, 0) -> true; +is_type(nonempty_maybe_improper_list, 2) -> true; +is_type(nonempty_string, 0) -> true; +is_type(number, 0) -> true; +is_type(pid, 0) -> true; +is_type(port, 0) -> true; +is_type(pos_integer, 0) -> true; +is_type(reference, 0) -> true; +is_type(string, 0) -> true; +is_type(term, 0) -> true; +is_type(timeout, 0) -> true; +is_type(tuple, 0) -> true; +is_type(_, _) -> false. diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl index 39cc03cf7a..6619ed5221 100644 --- a/lib/stdlib/src/erl_lint.erl +++ b/lib/stdlib/src/erl_lint.erl @@ -130,6 +130,8 @@ value_option(Flag, Default, On, OnVal, Off, OffVal, Opts) -> :: dict:dict(mfa(), line()), callbacks = dict:new() %Callback types :: dict:dict(mfa(), line()), + optional_callbacks = dict:new() %Optional callbacks + :: dict:dict(mfa(), line()), types = dict:new() %Type definitions :: dict:dict(ta(), #typeinfo{}), exp_types=gb_sets:empty() %Exported types @@ -313,13 +315,20 @@ format_error({undefined_behaviour,Behaviour}) -> io_lib:format("behaviour ~w undefined", [Behaviour]); format_error({undefined_behaviour_callbacks,Behaviour}) -> io_lib:format("behaviour ~w callback functions are undefined", - [Behaviour]); + [Behaviour]); format_error({ill_defined_behaviour_callbacks,Behaviour}) -> io_lib:format("behaviour ~w callback functions erroneously defined", [Behaviour]); +format_error({ill_defined_optional_callbacks,Behaviour}) -> + io_lib:format("behaviour ~w optional callback functions erroneously defined", + [Behaviour]); format_error({behaviour_info, {_M,F,A}}) -> io_lib:format("cannot define callback attibute for ~w/~w when " "behaviour_info is defined",[F,A]); +format_error({redefine_optional_callback, {F, A}}) -> + io_lib:format("optional callback ~w/~w duplicated", [F, A]); +format_error({undefined_callback, {_M, F, A}}) -> + io_lib:format("callback ~w/~w is undefined", [F, A]); %% --- types and specs --- format_error({singleton_typevar, Name}) -> io_lib:format("type variable ~w is only used once (is unbound)", [Name]); @@ -331,14 +340,10 @@ format_error({undefined_type, {TypeName, Arity}}) -> io_lib:format("type ~w~s undefined", [TypeName, gen_type_paren(Arity)]); format_error({unused_type, {TypeName, Arity}}) -> io_lib:format("type ~w~s is unused", [TypeName, gen_type_paren(Arity)]); -%% format_error({new_builtin_type, {TypeName, Arity}}) -> -%% io_lib:format("type ~w~s is a new builtin type; " -%% "its (re)definition is allowed only until the next release", -%% [TypeName, gen_type_paren(Arity)]); -format_error({new_var_arity_type, TypeName}) -> - io_lib:format("type ~w is a new builtin type; " +format_error({new_builtin_type, {TypeName, Arity}}) -> + io_lib:format("type ~w~s is a new builtin type; " "its (re)definition is allowed only until the next release", - [TypeName]); + [TypeName, gen_type_paren(Arity)]); format_error({builtin_type, {TypeName, Arity}}) -> io_lib:format("type ~w~s is a builtin type; it cannot be redefined", [TypeName, gen_type_paren(Arity)]); @@ -352,10 +357,14 @@ format_error({type_syntax, Constr}) -> io_lib:format("bad ~w type", [Constr]); format_error({redefine_spec, {M, F, A}}) -> io_lib:format("spec for ~w:~w/~w already defined", [M, F, A]); -format_error({redefine_callback, {M, F, A}}) -> - io_lib:format("callback ~w:~w/~w already defined", [M, F, A]); -format_error({spec_fun_undefined, {M, F, A}}) -> - io_lib:format("spec for undefined function ~w:~w/~w", [M, F, A]); +format_error({redefine_spec, {F, A}}) -> + io_lib:format("spec for ~w/~w already defined", [F, A]); +format_error({redefine_callback, {F, A}}) -> + io_lib:format("callback ~w/~w already defined", [F, A]); +format_error({bad_callback, {M, F, A}}) -> + io_lib:format("explicit module not allowed for callback ~w:~w/~w ", [M, F, A]); +format_error({spec_fun_undefined, {F, A}}) -> + io_lib:format("spec for undefined function ~w/~w", [F, A]); format_error({missing_spec, {F,A}}) -> io_lib:format("missing specification for function ~w/~w", [F, A]); format_error(spec_wrong_arity) -> @@ -727,6 +736,8 @@ attribute_state({attribute,L,spec,{Fun,Types}}, St) -> spec_decl(L, Fun, Types, St); attribute_state({attribute,L,callback,{Fun,Types}}, St) -> callback_decl(L, Fun, Types, St); +attribute_state({attribute,L,optional_callbacks,Es}, St) -> + optional_callbacks(L, Es, St); attribute_state({attribute,L,on_load,Val}, St) -> on_load(L, Val, St); attribute_state({attribute,_L,_Other,_Val}, St) -> % Ignore others @@ -834,57 +845,73 @@ check_behaviour(St0) -> %% Check behaviours for existence and defined functions. behaviour_check(Bs, St0) -> - {AllBfs,St1} = all_behaviour_callbacks(Bs, [], St0), - St = behaviour_missing_callbacks(AllBfs, St1), + {AllBfs0, St1} = all_behaviour_callbacks(Bs, [], St0), + St = behaviour_missing_callbacks(AllBfs0, St1), + Exports = exports(St0), + F = fun(Bfs, OBfs) -> + [B || B <- Bfs, + not lists:member(B, OBfs) + orelse gb_sets:is_member(B, Exports)] + end, + %% After fixing missing callbacks new warnings may be emitted. + AllBfs = [{Item,F(Bfs0, OBfs0)} || {Item,Bfs0,OBfs0} <- AllBfs0], behaviour_conflicting(AllBfs, St). all_behaviour_callbacks([{Line,B}|Bs], Acc, St0) -> - {Bfs0,St} = behaviour_callbacks(Line, B, St0), - all_behaviour_callbacks(Bs, [{{Line,B},Bfs0}|Acc], St); + {Bfs0,OBfs0,St} = behaviour_callbacks(Line, B, St0), + all_behaviour_callbacks(Bs, [{{Line,B},Bfs0,OBfs0}|Acc], St); all_behaviour_callbacks([], Acc, St) -> {reverse(Acc),St}. behaviour_callbacks(Line, B, St0) -> try B:behaviour_info(callbacks) of - Funcs when is_list(Funcs) -> - All = all(fun({FuncName, Arity}) -> - is_atom(FuncName) andalso is_integer(Arity); - ({FuncName, Arity, Spec}) -> - is_atom(FuncName) andalso is_integer(Arity) - andalso is_list(Spec); - (_Other) -> - false - end, - Funcs), - MaybeRemoveSpec = fun({_F,_A}=FA) -> FA; - ({F,A,_S}) -> {F,A}; - (Other) -> Other - end, - if - All =:= true -> - {[MaybeRemoveSpec(F) || F <- Funcs], St0}; + undefined -> + St1 = add_warning(Line, {undefined_behaviour_callbacks, B}, St0), + {[], [], St1}; + Funcs -> + case is_fa_list(Funcs) of true -> + try B:behaviour_info(optional_callbacks) of + undefined -> + {Funcs, [], St0}; + OptFuncs -> + %% OptFuncs should always be OK thanks to + %% sys_pre_expand. + case is_fa_list(OptFuncs) of + true -> + {Funcs, OptFuncs, St0}; + false -> + W = {ill_defined_optional_callbacks, B}, + St1 = add_warning(Line, W, St0), + {Funcs, [], St1} + end + catch + _:_ -> + {Funcs, [], St0} + end; + false -> St1 = add_warning(Line, - {ill_defined_behaviour_callbacks,B}, + {ill_defined_behaviour_callbacks, B}, St0), - {[], St1} - end; - undefined -> - St1 = add_warning(Line, {undefined_behaviour_callbacks,B}, St0), - {[], St1}; - _Other -> - St1 = add_warning(Line, {ill_defined_behaviour_callbacks,B}, St0), - {[], St1} + {[], [], St1} + end catch _:_ -> - St1 = add_warning(Line, {undefined_behaviour,B}, St0), - {[], St1} + St1 = add_warning(Line, {undefined_behaviour, B}, St0), + {[], [], St1} end. -behaviour_missing_callbacks([{{Line,B},Bfs}|T], St0) -> +behaviour_missing_callbacks([{{Line,B},Bfs0,OBfs}|T], St0) -> + Bfs = ordsets:subtract(ordsets:from_list(Bfs0), ordsets:from_list(OBfs)), Exports = gb_sets:to_list(exports(St0)), - Missing = ordsets:subtract(ordsets:from_list(Bfs), Exports), + Missing = ordsets:subtract(Bfs, Exports), St = foldl(fun (F, S0) -> - add_warning(Line, {undefined_behaviour_func,F,B}, S0) + case is_fa(F) of + true -> + M = {undefined_behaviour_func,F,B}, + add_warning(Line, M, S0); + false -> + S0 % ill_defined_behaviour_callbacks + end end, St0, Missing), behaviour_missing_callbacks(T, St); behaviour_missing_callbacks([], St) -> St. @@ -1046,10 +1073,9 @@ check_undefined_types(#lint{usage=Usage,types=Def}=St0) -> Used = Usage#usage.used_types, UTAs = dict:fetch_keys(Used), Undef = [{TA,dict:fetch(TA, Used)} || - {T,_}=TA <- UTAs, + TA <- UTAs, not dict:is_key(TA, Def), - not is_default_type(TA), - not is_newly_introduced_var_arity_type(T)], + not is_default_type(TA)], foldl(fun ({TA,L}, St) -> add_error(L, {undefined_type,TA}, St) end, St0, Undef). @@ -1127,19 +1153,29 @@ check_unused_records(Forms, St0) -> end. check_callback_information(#lint{callbacks = Callbacks, - defined = Defined} = State) -> - case gb_sets:is_member({behaviour_info,1}, Defined) of - false -> State; + optional_callbacks = OptionalCbs, + defined = Defined} = St0) -> + OptFun = fun({MFA, Line}, St) -> + case dict:is_key(MFA, Callbacks) of + true -> + St; + false -> + add_error(Line, {undefined_callback, MFA}, St) + end + end, + St1 = lists:foldl(OptFun, St0, dict:to_list(OptionalCbs)), + case gb_sets:is_member({behaviour_info, 1}, Defined) of + false -> St1; true -> case dict:size(Callbacks) of - 0 -> State; + 0 -> St1; _ -> CallbacksList = dict:to_list(Callbacks), FoldL = - fun({Fa,Line},St) -> + fun({Fa, Line}, St) -> add_error(Line, {behaviour_info, Fa}, St) end, - lists:foldl(FoldL, State, CallbacksList) + lists:foldl(FoldL, St1, CallbacksList) end end. @@ -2085,8 +2121,8 @@ expr({'receive',Line,Cs,To,ToEs}, Vt, St0) -> {Cvt,St3} = icrt_clauses(Cs, Vt, St2), %% Csvts = [vtnew(Tevt, Vt)|Cvt], %This is just NEW variables! Csvts = [Tevt|Cvt], - {Rvt,St4} = icrt_export(Csvts, Vt, {'receive',Line}, St3), - {vtmerge([Tvt,Tevt,Rvt]),St4}; + Rvt = icrt_export(Csvts, Vt, {'receive',Line}), + {vtmerge([Tvt,Tevt,Rvt]),St3}; expr({'fun',Line,Body}, Vt, St) -> %%No one can think funs export! case Body of @@ -2197,21 +2233,20 @@ expr({'try',Line,Es,Scs,Ccs,As}, Vt, St0) -> %% passes cannot handle exports in combination with 'after'. {Evt0,St1} = exprs(Es, Vt, St0), TryLine = {'try',Line}, - Uvt = vtunsafe(vtnames(vtnew(Evt0, Vt)), TryLine, []), - Evt1 = vtupdate(Uvt, vtsubtract(Evt0, Uvt)), + Uvt = vtunsafe(TryLine, Evt0, Vt), + Evt1 = vtupdate(Uvt, Evt0), {Sccs,St2} = icrt_clauses(Scs++Ccs, TryLine, vtupdate(Evt1, Vt), St1), Rvt0 = Sccs, - Rvt1 = vtupdate(vtunsafe(vtnames(vtnew(Rvt0, Vt)), TryLine, []), Rvt0), + Rvt1 = vtupdate(vtunsafe(TryLine, Rvt0, Vt), Rvt0), Evt2 = vtmerge(Evt1, Rvt1), {Avt0,St} = exprs(As, vtupdate(Evt2, Vt), St2), - Avt1 = vtupdate(vtunsafe(vtnames(vtnew(Avt0, Vt)), TryLine, []), Avt0), + Avt1 = vtupdate(vtunsafe(TryLine, Avt0, Vt), Avt0), Avt = vtmerge(Evt2, Avt1), {Avt,St}; expr({'catch',Line,E}, Vt, St0) -> %% No new variables added, flag new variables as unsafe. - {Evt,St1} = expr(E, Vt, St0), - Uvt = vtunsafe(vtnames(vtnew(Evt, Vt)), {'catch',Line}, []), - {vtupdate(Uvt,vtupdate(Evt, Vt)),St1}; + {Evt,St} = expr(E, Vt, St0), + {vtupdate(vtunsafe({'catch',Line}, Evt, Vt), Evt),St}; expr({match,_Line,P,E}, Vt, St0) -> {Evt,St1} = expr(E, Vt, St0), {Pvt,Bvt,St2} = pattern(P, vtupdate(Evt, Vt), St1), @@ -2224,9 +2259,8 @@ expr({op,Line,Op,L,R}, Vt, St0) when Op =:= 'orelse'; Op =:= 'andalso' -> {Evt1,St1} = expr(L, Vt, St0), Vt1 = vtupdate(Evt1, Vt), {Evt2,St2} = expr(R, Vt1, St1), - Vt2 = vtmerge(Evt2, Vt1), - {Vt3,St3} = icrt_export([Vt1,Vt2], Vt1, {Op,Line}, St2), - {vtmerge(Evt1, Vt3),St3}; + Evt3 = vtupdate(vtunsafe({Op,Line}, Evt2, Vt1), Evt2), + {vtmerge(Evt1, Evt3),St2}; expr({op,_Line,_Op,L,R}, Vt, St) -> expr_list([L,R], Vt, St); %They see the same variables %% The following are not allowed to occur anywhere! @@ -2615,30 +2649,21 @@ type_def(Attr, Line, TypeName, ProtoType, Args, St0) -> true -> case is_obsolete_builtin_type(TypePair) of true -> StoreType(St0); - false -> add_error(Line, {builtin_type, TypePair}, St0) -%% case is_newly_introduced_builtin_type(TypePair) of -%% %% allow some types just for bootstrapping -%% true -> -%% Warn = {new_builtin_type, TypePair}, -%% St1 = add_warning(Line, Warn, St0), -%% StoreType(St1); -%% false -> -%% add_error(Line, {builtin_type, TypePair}, St0) -%% end + false -> + case is_newly_introduced_builtin_type(TypePair) of + %% allow some types just for bootstrapping + true -> + Warn = {new_builtin_type, TypePair}, + St1 = add_warning(Line, Warn, St0), + StoreType(St1); + false -> + add_error(Line, {builtin_type, TypePair}, St0) + end end; false -> - case - dict:is_key(TypePair, TypeDefs) orelse - is_var_arity_type(TypeName) - of + case dict:is_key(TypePair, TypeDefs) of true -> - case is_newly_introduced_var_arity_type(TypeName) of - true -> - Warn = {new_var_arity_type, TypeName}, - add_warning(Line, Warn, St0); - false -> - add_error(Line, {redefine_type, TypePair}, St0) - end; + add_error(Line, {redefine_type, TypePair}, St0); false -> St1 = case Attr =:= opaque andalso @@ -2675,7 +2700,7 @@ check_type({paren_type, _L, [Type]}, SeenVars, St) -> check_type({remote_type, L, [{atom, _, Mod}, {atom, _, Name}, Args]}, SeenVars, #lint{module=CurrentMod} = St) -> case Mod =:= CurrentMod of - true -> check_type({type, L, Name, Args}, SeenVars, St); + true -> check_type({user_type, L, Name, Args}, SeenVars, St); false -> lists:foldl(fun(T, {AccSeenVars, AccSt}) -> check_type(T, AccSeenVars, AccSt) @@ -2709,12 +2734,15 @@ check_type({type, L, range, [From, To]}, SeenVars, St) -> _ -> add_error(L, {type_syntax, range}, St) end, {SeenVars, St1}; -check_type({type, _L, map, any}, SeenVars, St) -> {SeenVars, St}; +check_type({type, L, map, any}, SeenVars, St) -> + %% To get usage right while map/0 is a newly_introduced_builtin_type. + St1 = used_type({map, 0}, L, St), + {SeenVars, St1}; check_type({type, _L, map, Pairs}, SeenVars, St) -> lists:foldl(fun(Pair, {AccSeenVars, AccSt}) -> check_type(Pair, AccSeenVars, AccSt) end, {SeenVars, St}, Pairs); -check_type({type, _L, map_field_assoc, Dom, Range}, SeenVars, St) -> +check_type({type, _L, map_field_assoc, [Dom, Range]}, SeenVars, St) -> check_type({type, -1, product, [Dom, Range]}, SeenVars, St); check_type({type, _L, tuple, any}, SeenVars, St) -> {SeenVars, St}; check_type({type, _L, any}, SeenVars, St) -> {SeenVars, St}; @@ -2733,41 +2761,39 @@ check_type({type, L, record, [Name|Fields]}, SeenVars, St) -> check_record_types(L, Atom, Fields, SeenVars, St1); _ -> {SeenVars, add_error(L, {type_syntax, record}, St)} end; -check_type({type, _L, product, Args}, SeenVars, St) -> +check_type({type, _L, Tag, Args}, SeenVars, St) when Tag =:= product; + Tag =:= union; + Tag =:= tuple -> lists:foldl(fun(T, {AccSeenVars, AccSt}) -> check_type(T, AccSeenVars, AccSt) end, {SeenVars, St}, Args); check_type({type, La, TypeName, Args}, SeenVars, St) -> - #lint{usage=Usage, module = Module, types=Types} = St, + #lint{module = Module, types=Types} = St, Arity = length(Args), TypePair = {TypeName, Arity}, - St1 = case is_var_arity_type(TypeName) of - true -> St; - false -> - Obsolete = (is_warn_enabled(deprecated_type, St) - andalso obsolete_builtin_type(TypePair)), - IsObsolete = - case Obsolete of - {deprecated, Repl, _} when element(1, Repl) =/= Module -> - case dict:find(TypePair, Types) of - {ok, _} -> false; - error -> true - end; - _ -> false - end, - case IsObsolete of - true -> + Obsolete = (is_warn_enabled(deprecated_type, St) + andalso obsolete_builtin_type(TypePair)), + St1 = case Obsolete of + {deprecated, Repl, _} when element(1, Repl) =/= Module -> + case dict:find(TypePair, Types) of + {ok, _} -> + used_type(TypePair, La, St); + error -> {deprecated, Replacement, Rel} = Obsolete, Tag = deprecated_builtin_type, W = {Tag, TypePair, Replacement, Rel}, - add_warning(La, W, St); - false -> - OldUsed = Usage#usage.used_types, - UsedTypes = dict:store(TypePair, La, OldUsed), - St#lint{usage=Usage#usage{used_types=UsedTypes}} - end - end, + add_warning(La, W, St) + end; + _ -> St + end, check_type({type, -1, product, Args}, SeenVars, St1); +check_type({user_type, L, TypeName, Args}, SeenVars, St) -> + Arity = length(Args), + TypePair = {TypeName, Arity}, + St1 = used_type(TypePair, L, St), + lists:foldl(fun(T, {AccSeenVars, AccSt}) -> + check_type(T, AccSeenVars, AccSt) + end, {SeenVars, St1}, Args); check_type(I, SeenVars, St) -> case erl_eval:partial_eval(I) of {integer,_ILn,_Integer} -> {SeenVars, St}; @@ -2809,95 +2835,24 @@ check_record_types([{type, _, field_type, [{atom, AL, FName}, Type]}|Left], check_record_types([], _Name, _DefFields, SeenVars, St, _SeenFields) -> {SeenVars, St}. -is_var_arity_type(tuple) -> true; -is_var_arity_type(map) -> true; -is_var_arity_type(product) -> true; -is_var_arity_type(union) -> true; -is_var_arity_type(record) -> true; -is_var_arity_type(_) -> false. - -is_default_type({any, 0}) -> true; -is_default_type({arity, 0}) -> true; -is_default_type({array, 0}) -> true; -is_default_type({atom, 0}) -> true; -is_default_type({atom, 1}) -> true; -is_default_type({binary, 0}) -> true; -is_default_type({binary, 2}) -> true; -is_default_type({bitstring, 0}) -> true; -is_default_type({bool, 0}) -> true; -is_default_type({boolean, 0}) -> true; -is_default_type({byte, 0}) -> true; -is_default_type({char, 0}) -> true; -is_default_type({dict, 0}) -> true; -is_default_type({digraph, 0}) -> true; -is_default_type({float, 0}) -> true; -is_default_type({'fun', 0}) -> true; -is_default_type({'fun', 2}) -> true; -is_default_type({function, 0}) -> true; -is_default_type({gb_set, 0}) -> true; -is_default_type({gb_tree, 0}) -> true; -is_default_type({identifier, 0}) -> true; -is_default_type({integer, 0}) -> true; -is_default_type({integer, 1}) -> true; -is_default_type({iodata, 0}) -> true; -is_default_type({iolist, 0}) -> true; -is_default_type({list, 0}) -> true; -is_default_type({list, 1}) -> true; -is_default_type({maybe_improper_list, 0}) -> true; -is_default_type({maybe_improper_list, 2}) -> true; -is_default_type({mfa, 0}) -> true; -is_default_type({module, 0}) -> true; -is_default_type({neg_integer, 0}) -> true; -is_default_type({nil, 0}) -> true; -is_default_type({no_return, 0}) -> true; -is_default_type({node, 0}) -> true; -is_default_type({non_neg_integer, 0}) -> true; -is_default_type({none, 0}) -> true; -is_default_type({nonempty_list, 0}) -> true; -is_default_type({nonempty_list, 1}) -> true; -is_default_type({nonempty_improper_list, 2}) -> true; -is_default_type({nonempty_maybe_improper_list, 0}) -> true; -is_default_type({nonempty_maybe_improper_list, 2}) -> true; -is_default_type({nonempty_string, 0}) -> true; -is_default_type({number, 0}) -> true; -is_default_type({pid, 0}) -> true; -is_default_type({port, 0}) -> true; -is_default_type({pos_integer, 0}) -> true; -is_default_type({queue, 0}) -> true; -is_default_type({range, 2}) -> true; -is_default_type({reference, 0}) -> true; -is_default_type({set, 0}) -> true; -is_default_type({string, 0}) -> true; -is_default_type({term, 0}) -> true; -is_default_type({timeout, 0}) -> true; -is_default_type({var, 1}) -> true; -is_default_type(_) -> false. - -is_newly_introduced_var_arity_type(map) -> true; -is_newly_introduced_var_arity_type(_) -> false. - -%% is_newly_introduced_builtin_type({Name, _}) when is_atom(Name) -> false. +used_type(TypePair, L, St) -> + Usage = St#lint.usage, + OldUsed = Usage#usage.used_types, + UsedTypes = dict:store(TypePair, L, OldUsed), + St#lint{usage=Usage#usage{used_types=UsedTypes}}. + +is_default_type({Name, NumberOfTypeVariables}) -> + erl_internal:is_type(Name, NumberOfTypeVariables). + +is_newly_introduced_builtin_type({map, 0}) -> true; +is_newly_introduced_builtin_type({Name, _}) when is_atom(Name) -> false. is_obsolete_builtin_type(TypePair) -> obsolete_builtin_type(TypePair) =/= no. -%% Obsolete in OTP 17.0. -obsolete_builtin_type({array, 0}) -> - {deprecated, {array, array, 1}, "OTP 18.0"}; -obsolete_builtin_type({dict, 0}) -> - {deprecated, {dict, dict, 2}, "OTP 18.0"}; -obsolete_builtin_type({digraph, 0}) -> - {deprecated, {digraph, graph}, "OTP 18.0"}; -obsolete_builtin_type({gb_set, 0}) -> - {deprecated, {gb_sets, set, 1}, "OTP 18.0"}; -obsolete_builtin_type({gb_tree, 0}) -> - {deprecated, {gb_trees, tree, 2}, "OTP 18.0"}; -obsolete_builtin_type({queue, 0}) -> - {deprecated, {queue, queue, 1}, "OTP 18.0"}; -obsolete_builtin_type({set, 0}) -> - {deprecated, {sets, set, 1}, "OTP 18.0"}; -obsolete_builtin_type({tid, 0}) -> - {deprecated, {ets, tid}, "OTP 18.0"}; +%% To keep Dialyzer silent... +obsolete_builtin_type({1, 255}) -> + {deprecated, {2, 255}, ""}; obsolete_builtin_type({Name, A}) when is_atom(Name), is_integer(A) -> no. %% spec_decl(Line, Fun, Types, State) -> State. @@ -2909,7 +2864,7 @@ spec_decl(Line, MFA0, TypeSpecs, St0 = #lint{specs = Specs, module = Mod}) -> end, St1 = St0#lint{specs = dict:store(MFA, Line, Specs)}, case dict:is_key(MFA, Specs) of - true -> add_error(Line, {redefine_spec, MFA}, St1); + true -> add_error(Line, {redefine_spec, MFA0}, St1); false -> check_specs(TypeSpecs, Arity, St1) end. @@ -2917,16 +2872,50 @@ spec_decl(Line, MFA0, TypeSpecs, St0 = #lint{specs = Specs, module = Mod}) -> callback_decl(Line, MFA0, TypeSpecs, St0 = #lint{callbacks = Callbacks, module = Mod}) -> - MFA = case MFA0 of - {F, Arity} -> {Mod, F, Arity}; - {_M, _F, Arity} -> MFA0 - end, - St1 = St0#lint{callbacks = dict:store(MFA, Line, Callbacks)}, - case dict:is_key(MFA, Callbacks) of - true -> add_error(Line, {redefine_callback, MFA}, St1); - false -> check_specs(TypeSpecs, Arity, St1) + case MFA0 of + {_M, _F, _A} -> add_error(Line, {bad_callback, MFA0}, St0); + {F, Arity} -> + MFA = {Mod, F, Arity}, + St1 = St0#lint{callbacks = dict:store(MFA, Line, Callbacks)}, + case dict:is_key(MFA, Callbacks) of + true -> add_error(Line, {redefine_callback, MFA0}, St1); + false -> check_specs(TypeSpecs, Arity, St1) + end + end. + +%% optional_callbacks(Line, FAs, State) -> State. + +optional_callbacks(Line, Term, St0) -> + try true = is_fa_list(Term), Term of + FAs -> + optional_cbs(Line, FAs, St0) + catch + _:_ -> + St0 % ignore others end. +optional_cbs(_Line, [], St) -> + St; +optional_cbs(Line, [{F,A}|FAs], St0) -> + #lint{optional_callbacks = OptionalCbs, module = Mod} = St0, + MFA = {Mod, F, A}, + St1 = St0#lint{optional_callbacks = dict:store(MFA, Line, OptionalCbs)}, + St2 = case dict:is_key(MFA, OptionalCbs) of + true -> + add_error(Line, {redefine_optional_callback, {F,A}}, St1); + false -> + St1 + end, + optional_cbs(Line, FAs, St2). + +is_fa_list([E|L]) -> is_fa(E) andalso is_fa_list(L); +is_fa_list([]) -> true; +is_fa_list(_) -> false. + +is_fa({FuncName, Arity}) + when is_atom(FuncName), is_integer(Arity), Arity >= 0 -> true; +is_fa(_) -> false. + check_specs([FunType|Left], Arity, St0) -> {FunType1, CTypes} = case FunType of @@ -2950,10 +2939,11 @@ check_specs([], _Arity, St) -> St. check_specs_without_function(#lint{module=Mod,defined=Funcs,specs=Specs}=St) -> - Fun = fun({M, F, A} = MFA, Line, AccSt) when M =:= Mod -> - case gb_sets:is_element({F, A}, Funcs) of + Fun = fun({M, F, A}, Line, AccSt) when M =:= Mod -> + FA = {F, A}, + case gb_sets:is_element(FA, Funcs) of true -> AccSt; - false -> add_error(Line, {spec_fun_undefined, MFA}, AccSt) + false -> add_error(Line, {spec_fun_undefined, FA}, AccSt) end; ({_M, _F, _A}, _Line, AccSt) -> AccSt end, @@ -3032,11 +3022,12 @@ check_local_opaque_types(St) -> dict:fold(FoldFun, St, Ts). %% icrt_clauses(Clauses, In, ImportVarTable, State) -> -%% {NewVts,State}. +%% {UpdVt,State}. icrt_clauses(Cs, In, Vt, St0) -> {Csvt,St1} = icrt_clauses(Cs, Vt, St0), - icrt_export(Csvt, Vt, In, St1). + UpdVt = icrt_export(Csvt, Vt, In), + {UpdVt,St1}. %% icrt_clauses(Clauses, ImportVarTable, State) -> %% {NewVts,State}. @@ -3046,26 +3037,73 @@ icrt_clauses(Cs, Vt, St) -> icrt_clause({clause,_Line,H,G,B}, Vt0, St0) -> {Hvt,Binvt,St1} = head(H, Vt0, St0), - Vt1 = vtupdate(Hvt, vtupdate(Binvt, Vt0)), - {Gvt,St2} = guard(G, Vt1, St1), + Vt1 = vtupdate(Hvt, Binvt), + {Gvt,St2} = guard(G, vtupdate(Vt1, Vt0), St1), Vt2 = vtupdate(Gvt, Vt1), - {Bvt,St3} = exprs(B, Vt2, St2), + {Bvt,St3} = exprs(B, vtupdate(Vt2, Vt0), St2), {vtupdate(Bvt, Vt2),St3}. -icrt_export(Csvt, Vt, In, St) -> - Vt1 = vtmerge(Csvt), - All = ordsets:subtract(vintersection(Csvt), vtnames(Vt)), - Some = ordsets:subtract(vtnames(Vt1), vtnames(Vt)), - Xvt = vtexport(All, In, []), - Evt = vtunsafe(ordsets:subtract(Some, All), In, Xvt), - Unused = vtmerge([unused_vars(Vt0, Vt, St) || Vt0 <- Csvt]), - %% Exported and unsafe variables may be unused: - Uvt = vtmerge(Evt, Unused), - %% Make exported and unsafe unused variables unused in subsequent code: - Vt2 = vtmerge(Uvt, vtsubtract(Vt1, Uvt)), - %% Forget about old variables which were not used: - Vt3 = vtmerge(vtnew(Vt2, Vt), vt_no_unused(vtold(Vt2, Vt))), - {Vt3,St}. +icrt_export(Vts, Vt, {Tag,Attrs}) -> + {_File,Loc} = loc(Attrs), + icrt_export(lists:merge(Vts), Vt, {Tag,Loc}, length(Vts), []). + +icrt_export([{V,{{export,_},_,_}}|Vs0], [{V,{{export,_}=S0,_,Ls}}|Vt], + In, I, Acc) -> + %% V was an exported variable and has been used in an expression in at least + %% one clause. Its state needs to be merged from all clauses to silence any + %% exported var warning already emitted. + {VVs,Vs} = lists:partition(fun ({K,_}) -> K =:= V end, Vs0), + S = foldl(fun ({_,{S1,_,_}}, AccS) -> merge_state(AccS, S1) end, S0, VVs), + icrt_export(Vs, Vt, In, I, [{V,{S,used,Ls}}|Acc]); +icrt_export([{V,_}|Vs0], [{V,{_,_,Ls}}|Vt], In, I, Acc) -> + %% V was either unsafe or bound and has now been reused. It may also have + %% been an export but as it was not matched by the previous clause, it means + %% it has been changed to 'bound' in at least one clause because it was used + %% in a pattern. + Vs = lists:dropwhile(fun ({K,_}) -> K =:= V end, Vs0), + icrt_export(Vs, Vt, In, I, [{V,{bound,used,Ls}}|Acc]); +icrt_export([{V1,_}|_]=Vs, [{V2,_}|Vt], In, I, Acc) when V1 > V2 -> + %% V2 was already in scope and has not been reused in any clause. + icrt_export(Vs, Vt, In, I, Acc); +icrt_export([{V,_}|_]=Vs0, Vt, In, I, Acc) -> + %% V is a new variable. + {VVs,Vs} = lists:partition(fun ({K,_}) -> K =:= V end, Vs0), + F = fun ({_,{S,U,Ls}}, {AccI,AccS0,AccLs0}) -> + AccS = case {S,AccS0} of + {{unsafe,_},{unsafe,_}} -> + %% V was found unsafe in a previous clause, mark + %% it as unsafe for the whole parent expression. + {unsafe,In}; + {{unsafe,_},_} -> + %% V was unsafe in a clause, keep that state and + %% generalize it to the whole expression if it + %% is found unsafe in another one. + S; + _ -> + %% V is either bound or exported, keep original + %% state. + AccS0 + end, + AccLs = case U of + used -> AccLs0; + unused -> merge_lines(AccLs0, Ls) + end, + {AccI + 1,AccS,AccLs} + end, + %% Initial state is exported from the current expression. + {Count,S1,Ls} = foldl(F, {0,{export,In},[]}, VVs), + S = case Count of + I -> + %% V was found in all clauses, keep computed state. + S1; + _ -> + %% V was not bound in some clauses, mark as unsafe. + {unsafe,In} + end, + U = case Ls of [] -> used; _ -> unused end, + icrt_export(Vs, Vt, In, I, [{V,{S,U,Ls}}|Acc]); +icrt_export([], _, _, _, Acc) -> + reverse(Acc). handle_comprehension(E, Qs, Vt0, St0) -> {Vt1, Uvt, St1} = lc_quals(Qs, Vt0, St0), @@ -3163,7 +3201,8 @@ fun_clauses(Cs, Vt, St) -> {Cvt,St1} = fun_clause(C, Vt, St0), {vtmerge(Cvt, Bvt0),St1} end, {[],St#lint{recdef_top = false}}, Cs), - {vt_no_unused(vtold(Bvt, Vt)),St2#lint{recdef_top = OldRecDef}}. + Uvt = vt_no_unsafe(vt_no_unused(vtold(Bvt, Vt))), + {Uvt,St2#lint{recdef_top = OldRecDef}}. fun_clause({clause,_Line,H,G,B}, Vt0, St0) -> {Hvt,Binvt,St1} = head(H, Vt0, [], St0), % No imported pattern variables @@ -3277,19 +3316,24 @@ pat_binsize_var(V, Line, Vt, Bvt, St) -> %% exported vars are probably safe, warn only if warn_export_vars is %% set. -expr_var(V, Line, Vt, St0) -> +expr_var(V, Line, Vt, St) -> case orddict:find(V, Vt) of {ok,{bound,_Usage,Ls}} -> - {[{V,{bound,used,Ls}}],St0}; + {[{V,{bound,used,Ls}}],St}; {ok,{{unsafe,In},_Usage,Ls}} -> {[{V,{bound,used,Ls}}], - add_error(Line, {unsafe_var,V,In}, St0)}; + add_error(Line, {unsafe_var,V,In}, St)}; {ok,{{export,From},_Usage,Ls}} -> - {[{V,{bound,used,Ls}}], - exported_var(Line, V, From, St0)}; + case is_warn_enabled(export_vars, St) of + true -> + {[{V,{bound,used,Ls}}], + add_warning(Line, {exported_var,V,From}, St)}; + false -> + {[{V,{{export,From},used,Ls}}],St} + end; error -> {[{V,{bound,used,[Line]}}], - add_error(Line, {unbound_var,V}, St0)} + add_error(Line, {unbound_var,V}, St)} end. exported_var(Line, V, From, St) -> @@ -3353,17 +3397,12 @@ vtupdate(Uvt, Vt0) -> {S, merge_used(U1, U2), merge_lines(L1, L2)} end, Uvt, Vt0). -%% vtexport([Variable], From, VarTable) -> VarTable. -%% vtunsafe([Variable], From, VarTable) -> VarTable. -%% Add the variables to VarTable either as exported from From or as unsafe. - -vtexport(Vs, {InTag,FileLine}, Vt0) -> - {_File,Line} = loc(FileLine), - vtupdate([{V,{{export,{InTag,Line}},unused,[]}} || V <- Vs], Vt0). +%% vtunsafe(From, UpdVarTable, VarTable) -> UnsafeVarTable. +%% Return all new variables in UpdVarTable as unsafe. -vtunsafe(Vs, {InTag,FileLine}, Vt0) -> +vtunsafe({Tag,FileLine}, Uvt, Vt) -> {_File,Line} = loc(FileLine), - vtupdate([{V,{{unsafe,{InTag,Line}},unused,[]}} || V <- Vs], Vt0). + [{V,{{unsafe,{Tag,Line}},U,Ls}} || {V,{_,U,Ls}} <- vtnew(Uvt, Vt)]. %% vtmerge(VarTable, VarTable) -> VarTable. %% Merge two variables tables generating a new vartable. Give priority to @@ -3416,8 +3455,6 @@ vtsubtract(New, Old) -> vtold(New, Old) -> orddict:filter(fun (V, _How) -> orddict:is_key(V, Old) end, New). -vtnames(Vt) -> [ V || {V,_How} <- Vt ]. - vt_no_unsafe(Vt) -> [V || {_,{S,_U,_L}}=V <- Vt, case S of {unsafe,_} -> false; @@ -3426,29 +3463,6 @@ vt_no_unsafe(Vt) -> [V || {_,{S,_U,_L}}=V <- Vt, vt_no_unused(Vt) -> [V || {_,{_,U,_L}}=V <- Vt, U =/= unused]. -%% vunion(VarTable1, VarTable2) -> [VarName]. -%% vunion([VarTable]) -> [VarName]. -%% vintersection(VarTable1, VarTable2) -> [VarName]. -%% vintersection([VarTable]) -> [VarName]. -%% Union/intersection of names of vars in VarTable. - --ifdef(NOTUSED). -vunion(Vs1, Vs2) -> ordsets:union(vtnames(Vs1), vtnames(Vs2)). - -vunion(Vss) -> foldl(fun (Vs, Uvs) -> - ordsets:union(vtnames(Vs), Uvs) - end, [], Vss). - -vintersection(Vs1, Vs2) -> ordsets:intersection(vtnames(Vs1), vtnames(Vs2)). --endif. - -vintersection([Vs]) -> - vtnames(Vs); %Boundary conditions!!! -vintersection([Vs|Vss]) -> - ordsets:intersection(vtnames(Vs), vintersection(Vss)); -vintersection([]) -> - []. - %% copy_expr(Expr, Line) -> Expr. %% Make a copy of Expr converting all line numbers to Line. diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl index e1ae3b7aea..a626d98ee4 100644 --- a/lib/stdlib/src/erl_parse.yrl +++ b/lib/stdlib/src/erl_parse.yrl @@ -146,8 +146,7 @@ type -> '(' top_type ')' : {paren_type, ?line('$2'), ['$2']}. type -> var : '$1'. type -> atom : '$1'. type -> atom '(' ')' : build_gen_type('$1'). -type -> atom '(' top_types ')' : {type, ?line('$1'), - normalise('$1'), '$3'}. +type -> atom '(' top_types ')' : build_type('$1', '$3'). type -> atom ':' atom '(' ')' : {remote_type, ?line('$1'), ['$1', '$3', []]}. type -> atom ':' atom '(' top_types ')' : {remote_type, ?line('$1'), @@ -181,7 +180,7 @@ fun_type -> '(' top_types ')' '->' top_type map_pair_types -> map_pair_type : ['$1']. map_pair_types -> map_pair_type ',' map_pair_types : ['$1'|'$3']. -map_pair_type -> top_type '=>' top_type : {type, ?line('$2'), map_field_assoc,'$1','$3'}. +map_pair_type -> top_type '=>' top_type : {type, ?line('$2'), map_field_assoc,['$1','$3']}. field_types -> field_type : ['$1']. field_types -> field_type ',' field_types : ['$1'|'$3']. @@ -665,6 +664,8 @@ find_arity_from_specs([Spec|_]) -> {type, _, 'fun', [{type, _, product, Args},_]} = Fun, length(Args). +build_def({var, L, '_'}, _Types) -> + ret_err(L, "bad type variable"); build_def(LHS, Types) -> IsSubType = {atom, ?line(LHS), is_subtype}, {type, ?line(LHS), constraint, [IsSubType, [LHS, Types]]}. @@ -684,7 +685,8 @@ build_gen_type({atom, La, tuple}) -> build_gen_type({atom, La, map}) -> {type, La, map, any}; build_gen_type({atom, La, Name}) -> - {type, La, Name, []}. + Tag = type_tag(Name, 0), + {Tag, La, Name, []}. build_bin_type([{var, _, '_'}|Left], Int) -> build_bin_type(Left, Int); @@ -693,6 +695,16 @@ build_bin_type([], Int) -> build_bin_type([{var, La, _}|_], _) -> ret_err(La, "Bad binary type"). +build_type({atom, L, Name}, Types) -> + Tag = type_tag(Name, length(Types)), + {Tag, L, Name, Types}. + +type_tag(TypeName, NumberOfTypeVariables) -> + case erl_internal:is_type(TypeName, NumberOfTypeVariables) of + true -> type; + false -> user_type + end. + %% build_attribute(AttrName, AttrValue) -> %% {attribute,Line,module,Module} %% {attribute,Line,export,Exports} diff --git a/lib/stdlib/src/erl_pp.erl b/lib/stdlib/src/erl_pp.erl index 3dbb5ab64c..004aae5330 100644 --- a/lib/stdlib/src/erl_pp.erl +++ b/lib/stdlib/src/erl_pp.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. 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 @@ -232,13 +232,21 @@ lattribute(import, Name, _Opts, _State) when is_list(Name) -> attr("import", [{var,0,pname(Name)}]); lattribute(import, {From,Falist}, _Opts, _State) -> attr("import",[{var,0,pname(From)},falist(Falist)]); +lattribute(optional_callbacks, Falist, Opts, _State) -> + ArgL = try falist(Falist) + catch _:_ -> abstract(Falist, Opts) + end, + call({var,0,"-optional_callbacks"}, [ArgL], 0, options(none)); lattribute(file, {Name,Line}, _Opts, State) -> attr("file", [{var,0,(State#pp.string_fun)(Name)},{integer,0,Line}]); lattribute(record, {Name,Is}, Opts, _State) -> Nl = leaf(format("-record(~w,", [Name])), [{first,Nl,record_fields(Is, Opts)},$)]; -lattribute(Name, Arg, #options{encoding = Encoding}, _State) -> - attr(write(Name), [erl_parse:abstract(Arg, [{encoding,Encoding}])]). +lattribute(Name, Arg, Options, _State) -> + attr(write(Name), [abstract(Arg, Options)]). + +abstract(Arg, #options{encoding = Encoding}) -> + erl_parse:abstract(Arg, [{encoding,Encoding}]). typeattr(Tag, {TypeName,Type,Args}, _Opts) -> {first,leaf("-"++atom_to_list(Tag)++" "), @@ -277,6 +285,9 @@ ltype({type,_,'fun',[{type,_,any},_]}=FunType) -> ltype({type,_Line,'fun',[{type,_,product,_},_]}=FunType) -> [fun_type(['fun',$(], FunType),$)]; ltype({type,Line,T,Ts}) -> + %% Compatibility. Before 18.0. + simple_type({atom,Line,T}, Ts); +ltype({user_type,Line,T,Ts}) -> simple_type({atom,Line,T}, Ts); ltype({remote_type,Line,[M,F,Ts]}) -> simple_type({remote,Line,M,F}, Ts); @@ -299,7 +310,7 @@ map_type(Fs) -> map_pair_types(Fs) -> tuple_type(Fs, fun map_pair_type/1). -map_pair_type({type,_Line,map_field_assoc,Ktype,Vtype}) -> +map_pair_type({type,_Line,map_field_assoc,[Ktype,Vtype]}) -> map_assoc_typed(lexpr(Ktype, options(none)), Vtype). map_assoc_typed(B, {type,_,union,Ts}) -> diff --git a/lib/stdlib/src/gen.erl b/lib/stdlib/src/gen.erl index 63116fa16e..6d7ca3d75c 100644 --- a/lib/stdlib/src/gen.erl +++ b/lib/stdlib/src/gen.erl @@ -26,7 +26,7 @@ %%% The standard behaviour should export init_it/6. %%%----------------------------------------------------------------- -export([start/5, start/6, debug_options/1, - call/3, call/4, reply/2]). + call/3, call/4, reply/2, stop/1, stop/3]). -export([init_it/6, init_it/7]). @@ -145,56 +145,10 @@ init_it2(GenMod, Starter, Parent, Name, Mod, Args, Options) -> call(Process, Label, Request) -> call(Process, Label, Request, ?default_timeout). -%% Local or remote by pid -call(Pid, Label, Request, Timeout) - when is_pid(Pid), Timeout =:= infinity; - is_pid(Pid), is_integer(Timeout), Timeout >= 0 -> - do_call(Pid, Label, Request, Timeout); -%% Local by name -call(Name, Label, Request, Timeout) - when is_atom(Name), Timeout =:= infinity; - is_atom(Name), is_integer(Timeout), Timeout >= 0 -> - case whereis(Name) of - Pid when is_pid(Pid) -> - do_call(Pid, Label, Request, Timeout); - undefined -> - exit(noproc) - end; -%% Global by name call(Process, Label, Request, Timeout) - when ((tuple_size(Process) == 2 andalso element(1, Process) == global) - orelse - (tuple_size(Process) == 3 andalso element(1, Process) == via)) - andalso - (Timeout =:= infinity orelse (is_integer(Timeout) andalso Timeout >= 0)) -> - case where(Process) of - Pid when is_pid(Pid) -> - Node = node(Pid), - try do_call(Pid, Label, Request, Timeout) - catch - exit:{nodedown, Node} -> - %% A nodedown not yet detected by global, - %% pretend that it was. - exit(noproc) - end; - undefined -> - exit(noproc) - end; -%% Local by name in disguise -call({Name, Node}, Label, Request, Timeout) - when Node =:= node(), Timeout =:= infinity; - Node =:= node(), is_integer(Timeout), Timeout >= 0 -> - call(Name, Label, Request, Timeout); -%% Remote by name -call({_Name, Node}=Process, Label, Request, Timeout) - when is_atom(Node), Timeout =:= infinity; - is_atom(Node), is_integer(Timeout), Timeout >= 0 -> - if - node() =:= nonode@nohost -> - exit({nodedown, Node}); - true -> - do_call(Process, Label, Request, Timeout) - end. + when Timeout =:= infinity; is_integer(Timeout), Timeout >= 0 -> + Fun = fun(Pid) -> do_call(Pid, Label, Request, Timeout) end, + do_for_proc(Process, Fun). do_call(Process, Label, Request, Timeout) -> try erlang:monitor(process, Process) of @@ -276,6 +230,65 @@ reply({To, Tag}, Reply) -> Msg = {Tag, Reply}, try To ! Msg catch _:_ -> Msg end. +%%----------------------------------------------------------------- +%% Syncronously stop a generic process +%%----------------------------------------------------------------- +stop(Process) -> + stop(Process, normal, infinity). + +stop(Process, Reason, Timeout) + when Timeout =:= infinity; is_integer(Timeout), Timeout >= 0 -> + Fun = fun(Pid) -> proc_lib:stop(Pid, Reason, Timeout) end, + do_for_proc(Process, Fun). + +%%----------------------------------------------------------------- +%% Map different specifications of a process to either Pid or +%% {Name,Node}. Execute the given Fun with the process as only +%% argument. +%% ----------------------------------------------------------------- + +%% Local or remote by pid +do_for_proc(Pid, Fun) when is_pid(Pid) -> + Fun(Pid); +%% Local by name +do_for_proc(Name, Fun) when is_atom(Name) -> + case whereis(Name) of + Pid when is_pid(Pid) -> + Fun(Pid); + undefined -> + exit(noproc) + end; +%% Global by name +do_for_proc(Process, Fun) + when ((tuple_size(Process) == 2 andalso element(1, Process) == global) + orelse + (tuple_size(Process) == 3 andalso element(1, Process) == via)) -> + case where(Process) of + Pid when is_pid(Pid) -> + Node = node(Pid), + try Fun(Pid) + catch + exit:{nodedown, Node} -> + %% A nodedown not yet detected by global, + %% pretend that it was. + exit(noproc) + end; + undefined -> + exit(noproc) + end; +%% Local by name in disguise +do_for_proc({Name, Node}, Fun) when Node =:= node() -> + do_for_proc(Name, Fun); +%% Remote by name +do_for_proc({_Name, Node} = Process, Fun) when is_atom(Node) -> + if + node() =:= nonode@nohost -> + exit({nodedown, Node}); + true -> + Fun(Process) + end. + + %%%----------------------------------------------------------------- %%% Misc. functions. %%%----------------------------------------------------------------- diff --git a/lib/stdlib/src/gen_event.erl b/lib/stdlib/src/gen_event.erl index 469acdc37c..5a1fff3a9c 100644 --- a/lib/stdlib/src/gen_event.erl +++ b/lib/stdlib/src/gen_event.erl @@ -31,8 +31,8 @@ %%% Modified by Martin - uses proc_lib, sys and gen! --export([start/0, start/1, start_link/0, start_link/1, stop/1, notify/2, - sync_notify/2, +-export([start/0, start/1, start_link/0, start_link/1, stop/1, stop/3, + notify/2, sync_notify/2, add_handler/3, add_sup_handler/3, delete_handler/3, swap_handler/3, swap_sup_handler/3, which_handlers/1, call/3, call/4, wake_hib/4]). @@ -99,6 +99,14 @@ -callback code_change(OldVsn :: (term() | {down, term()}), State :: term(), Extra :: term()) -> {ok, NewState :: term()}. +-callback format_status(Opt, StatusData) -> Status when + Opt :: 'normal' | 'terminate', + StatusData :: [PDict | State], + PDict :: [{Key :: term(), Value :: term()}], + State :: term(), + Status :: term(). + +-optional_callbacks([format_status/2]). %%--------------------------------------------------------------------------- @@ -183,7 +191,11 @@ swap_sup_handler(M, {H1, A1}, {H2, A2}) -> which_handlers(M) -> rpc(M, which_handlers). -spec stop(emgr_ref()) -> 'ok'. -stop(M) -> rpc(M, stop). +stop(M) -> + gen:stop(M). + +stop(M, Reason, Timeout) -> + gen:stop(M, Reason, Timeout). rpc(M, Cmd) -> {ok, Reply} = gen:call(M, self(), Cmd, infinity), diff --git a/lib/stdlib/src/gen_fsm.erl b/lib/stdlib/src/gen_fsm.erl index 5afe3e8b09..89825a6a57 100644 --- a/lib/stdlib/src/gen_fsm.erl +++ b/lib/stdlib/src/gen_fsm.erl @@ -106,6 +106,7 @@ -export([start/3, start/4, start_link/3, start_link/4, + stop/1, stop/3, send_event/2, sync_send_event/2, sync_send_event/3, send_all_state_event/2, sync_send_all_state_event/2, sync_send_all_state_event/3, @@ -160,6 +161,14 @@ -callback code_change(OldVsn :: term() | {down, term()}, StateName :: atom(), StateData :: term(), Extra :: term()) -> {ok, NextStateName :: atom(), NewStateData :: term()}. +-callback format_status(Opt, StatusData) -> Status when + Opt :: 'normal' | 'terminate', + StatusData :: [PDict | State], + PDict :: [{Key :: term(), Value :: term()}], + State :: term(), + Status :: term(). + +-optional_callbacks([format_status/2]). %%% --------------------------------------------------- %%% Starts a generic state machine. @@ -189,6 +198,11 @@ start_link(Mod, Args, Options) -> start_link(Name, Mod, Args, Options) -> gen:start(?MODULE, link, Name, Mod, Args, Options). +stop(Name) -> + gen:stop(Name). + +stop(Name, Reason, Timeout) -> + gen:stop(Name, Reason, Timeout). send_event({global, Name}, Event) -> catch global:send(Name, {'$gen_event', Event}), diff --git a/lib/stdlib/src/gen_server.erl b/lib/stdlib/src/gen_server.erl index dadfe56b3d..2d8d7f6233 100644 --- a/lib/stdlib/src/gen_server.erl +++ b/lib/stdlib/src/gen_server.erl @@ -88,6 +88,7 @@ %% API -export([start/3, start/4, start_link/3, start_link/4, + stop/1, stop/3, call/2, call/3, cast/2, reply/2, abcast/2, abcast/3, @@ -137,6 +138,15 @@ -callback code_change(OldVsn :: (term() | {down, term()}), State :: term(), Extra :: term()) -> {ok, NewState :: term()} | {error, Reason :: term()}. +-callback format_status(Opt, StatusData) -> Status when + Opt :: 'normal' | 'terminate', + StatusData :: [PDict | State], + PDict :: [{Key :: term(), Value :: term()}], + State :: term(), + Status :: term(). + +-optional_callbacks([format_status/2]). + %%% ----------------------------------------------------------------- %%% Starts a generic server. @@ -168,6 +178,17 @@ start_link(Name, Mod, Args, Options) -> %% ----------------------------------------------------------------- +%% Stop a generic server and wait for it to terminate. +%% If the server is located at another node, that node will +%% be monitored. +%% ----------------------------------------------------------------- +stop(Name) -> + gen:stop(Name). + +stop(Name, Reason, Timeout) -> + gen:stop(Name, Reason, Timeout). + +%% ----------------------------------------------------------------- %% Make a call to a generic server. %% If the server is located at another node, that node will %% be monitored. @@ -782,22 +803,10 @@ opt(_, []) -> debug_options(Name, Opts) -> case opt(debug, Opts) of - {ok, Options} -> dbg_options(Name, Options); - _ -> dbg_options(Name, []) + {ok, Options} -> dbg_opts(Name, Options); + _ -> [] end. -dbg_options(Name, []) -> - Opts = - case init:get_argument(generic_debug) of - error -> - []; - _ -> - [log, statistics] - end, - dbg_opts(Name, Opts); -dbg_options(Name, Opts) -> - dbg_opts(Name, Opts). - dbg_opts(Name, Opts) -> case catch sys:debug_options(Opts) of {'EXIT',_} -> diff --git a/lib/stdlib/src/otp_internal.erl b/lib/stdlib/src/otp_internal.erl index 6c25beabe9..0ace87ef5c 100644 --- a/lib/stdlib/src/otp_internal.erl +++ b/lib/stdlib/src/otp_internal.erl @@ -577,8 +577,6 @@ obsolete_1(asn1rt, utf8_binary_to_list, 1) -> {deprecated,{unicode,characters_to_list,1}}; obsolete_1(asn1rt, utf8_list_to_binary, 1) -> {deprecated,{unicode,characters_to_binary,1}}; -obsolete_1(pg, _, _) -> - {deprecated,"deprecated; will be removed in OTP 18"}; obsolete_1(_, _, _) -> no. diff --git a/lib/stdlib/src/pg.erl b/lib/stdlib/src/pg.erl deleted file mode 100644 index a41fd329c2..0000000000 --- a/lib/stdlib/src/pg.erl +++ /dev/null @@ -1,187 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1996-2014. 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(pg). --deprecated(module). - -%% pg provides a process group facility. Messages -%% can be multicasted to all members in the group - --export([create/1, - create/2, - standby/2, - join/2, - send/2, - esend/2, - members/1, - name_to_pid/1, - master/1]). - - -%% Create a brand new empty process group with the master residing -%% at the local node - --spec create(PgName) -> 'ok' | {'error', Reason} when - PgName :: term(), - Reason :: 'already_created' | term(). - -create(PgName) -> - catch begin check(PgName), - Pid = spawn(pg,master,[PgName]), - global:register_name(PgName,Pid), - ok end. - -%% Create a brand new empty process group with the master -%% residing at Node - --spec create(PgName, Node) -> 'ok' | {'error', Reason} when - PgName :: term(), - Node :: node(), - Reason :: 'already_created' | term(). - -create(PgName, Node) -> - catch begin check(PgName), - Pid = spawn(Node,pg,master,[PgName]), - global:register_name(PgName,Pid), - ok end. - -%% Have a process on Node that will act as a standby for the process -%% group manager. So if the node where the manager runs fails, the -%% process group will continue to function. - --spec standby(term(), node()) -> 'ok'. - -standby(_PgName, _Node) -> - ok. - -%% Tell process group PgName that Pid is a new member of the group -%% synchronously return a list of all old members in the group - --spec join(PgName, Pid) -> Members when - PgName :: term(), - Pid :: pid(), - Members :: [pid()]. - -join(PgName, Pid) when is_atom(PgName) -> - global:send(PgName, {join,self(),Pid}), - receive - {_P,{members,Members}} -> - Members - end. - -%% Multi cast Mess to all members in the group - --spec send(PgName, Msg) -> 'ok' when - PgName :: term(), - Msg :: term(). - -send(PgName, Mess) when is_atom(PgName) -> - global:send(PgName, {send, self(), Mess}), - ok; -send(Pg, Mess) when is_pid(Pg) -> - Pg ! {send,self(),Mess}, - ok. - -%% multi cast a message to all members in the group but ourselves -%% If we are a member - --spec esend(PgName, Msg) -> 'ok' when - PgName :: term(), - Msg :: term(). - -esend(PgName, Mess) when is_atom(PgName) -> - global:send(PgName, {esend,self(),Mess}), - ok; -esend(Pg, Mess) when is_pid(Pg) -> - Pg ! {esend,self(),Mess}, - ok. - -%% Return the members of the group - --spec members(PgName) -> Members when - PgName :: term(), - Members :: [pid()]. - -members(PgName) when is_atom(PgName) -> - global:send(PgName, {self() ,members}), - receive - {_P,{members,Members}} -> - Members - end; -members(Pg) when is_pid(Pg) -> - Pg ! {self,members}, - receive - {_P,{members,Members}} -> - Members - end. - --spec name_to_pid(atom()) -> pid() | 'undefined'. - -name_to_pid(PgName) when is_atom(PgName) -> - global:whereis_name(PgName). - --spec master(term()) -> no_return(). - -master(PgName) -> - process_flag(trap_exit, true), - master_loop(PgName, []). - -master_loop(PgName,Members) -> - receive - {send,From,Message} -> - send_all(Members,{pg_message,From,PgName,Message}), - master_loop(PgName,Members); - {esend,From,Message} -> - send_all(lists:delete(From,Members), - {pg_message,From,PgName,Message}), - master_loop(PgName,Members); - {join,From,Pid} -> - link(Pid), - send_all(Members,{new_member,PgName,Pid}), - From ! {self(),{members,Members}}, - master_loop(PgName,[Pid|Members]); - {From,members} -> - From ! {self(),{members,Members}}, - master_loop(PgName,Members); - {'EXIT',From,_} -> - L = - case lists:member(From,Members) of - true -> - NewMembers = lists:delete(From,Members), - send_all(NewMembers, {crashed_member,PgName,From}), - NewMembers; - false -> - Members - end, - master_loop(PgName,L) - end. - -send_all([], _) -> ok; -send_all([P|Ps], M) -> - P ! M, - send_all(Ps, M). - -%% Check if the process group already exists - -check(PgName) -> - case global:whereis_name(PgName) of - Pid when is_pid(Pid) -> - throw({error,already_created}); - undefined -> - ok - end. diff --git a/lib/stdlib/src/proc_lib.erl b/lib/stdlib/src/proc_lib.erl index bf2a4e7ac5..8792ff44d3 100644 --- a/lib/stdlib/src/proc_lib.erl +++ b/lib/stdlib/src/proc_lib.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. 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 @@ -30,7 +30,8 @@ hibernate/3, init_ack/1, init_ack/2, init_p/3,init_p/5,format/1,format/2,initial_call/1, - translate_initial_call/1]). + translate_initial_call/1, + stop/1, stop/3]). %% Internal exports. -export([wake_up/3]). @@ -748,3 +749,50 @@ format_tag(Tag, Data) -> modifier(latin1) -> ""; modifier(_) -> "t". + + +%%% ----------------------------------------------------------- +%%% Stop a process and wait for it to terminate +%%% ----------------------------------------------------------- +-spec stop(Process) -> 'ok' when + Process :: pid() | RegName | {RegName,node()}, + RegName :: atom(). +stop(Process) -> + stop(Process, normal, infinity). + +-spec stop(Process, Reason, Timeout) -> 'ok' when + Process :: pid() | RegName | {RegName,node()}, + RegName :: atom(), + Reason :: term(), + Timeout :: timeout(). +stop(Process, Reason, Timeout) -> + {Pid, Mref} = erlang:spawn_monitor(do_stop(Process, Reason)), + receive + {'DOWN', Mref, _, _, Reason} -> + ok; + {'DOWN', Mref, _, _, {noproc,{sys,terminate,_}}} -> + exit(noproc); + {'DOWN', Mref, _, _, CrashReason} -> + exit(CrashReason) + after Timeout -> + exit(Pid, kill), + receive + {'DOWN', Mref, _, _, _} -> + exit(timeout) + end + end. + +-spec do_stop(Process, Reason) -> Fun when + Process :: pid() | RegName | {RegName,node()}, + RegName :: atom(), + Reason :: term(), + Fun :: fun(() -> no_return()). +do_stop(Process, Reason) -> + fun() -> + Mref = erlang:monitor(process, Process), + ok = sys:terminate(Process, Reason, infinity), + receive + {'DOWN', Mref, _, _, ExitReason} -> + exit(ExitReason) + end + end. diff --git a/lib/stdlib/src/stdlib.app.src b/lib/stdlib/src/stdlib.app.src index aa9899da3b..f134c75869 100644 --- a/lib/stdlib/src/stdlib.app.src +++ b/lib/stdlib/src/stdlib.app.src @@ -77,7 +77,6 @@ orddict, ordsets, otp_internal, - pg, pool, proc_lib, proplists, diff --git a/lib/stdlib/src/stdlib.appup.src b/lib/stdlib/src/stdlib.appup.src index 99d9b8b431..e718fce140 100644 --- a/lib/stdlib/src/stdlib.appup.src +++ b/lib/stdlib/src/stdlib.appup.src @@ -17,11 +17,9 @@ %% %CopyrightEnd% {"%VSN%", %% Up from - max one major revision back - [{<<"2\\.1(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1 - {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.0 - {<<"1\\.19(\\.[0-9]+)*">>,[restart_new_emulator]}],%% R16 + [{<<"2\\.1(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1 + {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}], %% 17.0 %% Down to - max one major revision back [{<<"2\\.1(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.1 - {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}, %% 17.0 - {<<"1\\.19(\\.[0-9]+)*">>,[restart_new_emulator]}] %% R16 + {<<"2\\.0(\\.[0-9]+)*">>,[restart_new_emulator]}] %% 17.0 }. diff --git a/lib/stdlib/src/sys.erl b/lib/stdlib/src/sys.erl index d3ba09ce82..7e4bfa1fdd 100644 --- a/lib/stdlib/src/sys.erl +++ b/lib/stdlib/src/sys.erl @@ -24,6 +24,7 @@ get_state/1, get_state/2, replace_state/2, replace_state/3, change_code/4, change_code/5, + terminate/2, terminate/3, log/2, log/3, trace/2, trace/3, statistics/2, statistics/3, log_to_file/2, log_to_file/3, no_debug/1, no_debug/2, install/2, install/3, remove/2, remove/3]). @@ -163,6 +164,19 @@ change_code(Name, Mod, Vsn, Extra) -> change_code(Name, Mod, Vsn, Extra, Timeout) -> send_system_msg(Name, {change_code, Mod, Vsn, Extra}, Timeout). +-spec terminate(Name, Reason) -> 'ok' when + Name :: name(), + Reason :: term(). +terminate(Name, Reason) -> + send_system_msg(Name, {terminate, Reason}). + +-spec terminate(Name, Reason, Timeout) -> 'ok' when + Name :: name(), + Reason :: term(), + Timeout :: timeout(). +terminate(Name, Reason, Timeout) -> + send_system_msg(Name, {terminate, Reason}, Timeout). + %%----------------------------------------------------------------- %% Debug commands %%----------------------------------------------------------------- @@ -298,6 +312,8 @@ mfa(Name, {debug, {Func, Arg2}}) -> {sys, Func, [Name, Arg2]}; mfa(Name, {change_code, Mod, Vsn, Extra}) -> {sys, change_code, [Name, Mod, Vsn, Extra]}; +mfa(Name, {terminate, Reason}) -> + {sys, terminate, [Name, Reason]}; mfa(Name, Atom) -> {sys, Atom, [Name]}. @@ -313,7 +329,7 @@ mfa(Name, Req, Timeout) -> %% Returns: This function *never* returns! It calls the function %% Module:system_continue(Parent, NDebug, Misc) %% there the process continues the execution or -%% Module:system_terminate(Raeson, Parent, Debug, Misc) if +%% Module:system_terminate(Reason, Parent, Debug, Misc) if %% the process should terminate. %% The Module must export system_continue/3, system_terminate/4 %% and format_status/2 for status information. @@ -339,7 +355,10 @@ handle_system_msg(SysState, Msg, From, Parent, Mod, Debug, Misc, Hib) -> suspend_loop(suspended, Parent, Mod, NDebug, NMisc, Hib); {running, Reply, NDebug, NMisc} -> _ = gen:reply(From, Reply), - Mod:system_continue(Parent, NDebug, NMisc) + Mod:system_continue(Parent, NDebug, NMisc); + {{terminating, Reason}, Reply, NDebug, NMisc} -> + _ = gen:reply(From, Reply), + Mod:system_terminate(Reason, Parent, NDebug, NMisc) end. %%----------------------------------------------------------------- @@ -419,6 +438,8 @@ do_cmd(SysState, get_status, Parent, Mod, Debug, Misc) -> do_cmd(SysState, {debug, What}, _Parent, _Mod, Debug, Misc) -> {Res, NDebug} = debug_cmd(What, Debug), {SysState, Res, NDebug, Misc}; +do_cmd(_, {terminate, Reason}, _Parent, _Mod, Debug, Misc) -> + {{terminating, Reason}, ok, Debug, Misc}; do_cmd(suspended, {change_code, Module, Vsn, Extra}, _Parent, Mod, Debug, Misc) -> {Res, NMisc} = do_change_code(Mod, Module, Vsn, Extra, Misc), diff --git a/lib/stdlib/test/erl_internal_SUITE.erl b/lib/stdlib/test/erl_internal_SUITE.erl index b6b3c004ea..197a7a33eb 100644 --- a/lib/stdlib/test/erl_internal_SUITE.erl +++ b/lib/stdlib/test/erl_internal_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2011. All Rights Reserved. +%% Copyright Ericsson AB 1999-2014. 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 @@ -51,7 +51,7 @@ end_per_group(_GroupName, Config) -> -define(default_timeout, ?t:minutes(2)). init_per_testcase(_Case, Config) -> - ?line Dog = test_server:timetrap(?default_timeout), + Dog = test_server:timetrap(?default_timeout), [{watchdog, Dog}|Config]. end_per_testcase(_Case, Config) -> @@ -63,27 +63,50 @@ behav(suite) -> []; behav(doc) -> ["Check that the behaviour callbacks are correctly defined"]; behav(_) -> - ?line check_behav_list([{start,2}, {stop,1}], - application:behaviour_info(callbacks)), - ?line check_behav_list([{init,1}, {handle_call,3}, {handle_cast,2}, - {handle_info,2}, {terminate,2}, {code_change,3}], - gen_server:behaviour_info(callbacks)), - ?line check_behav_list([{init,1}, {handle_event,3}, {handle_sync_event,4}, - {handle_info,3}, {terminate,3}, {code_change,4}], - gen_fsm:behaviour_info(callbacks)), - ?line check_behav_list([{init,1}, {handle_event,2}, {handle_call,2}, - {handle_info,2}, {terminate,2}, {code_change,3}], - gen_event:behaviour_info(callbacks)), - ?line check_behav_list( [{init,1}, {terminate,2}], - supervisor_bridge:behaviour_info(callbacks)), - ?line check_behav_list([{init,1}], - supervisor:behaviour_info(callbacks)), - ok. + Modules = [application, gen_server, gen_fsm, gen_event, + supervisor_bridge, supervisor], + lists:foreach(fun check_behav/1, Modules). + +check_behav(Module) -> + Callbacks = callbacks(Module), + Optional = optional_callbacks(Module), + check_behav_list(Callbacks, Module:behaviour_info(callbacks)), + check_behav_list(Optional, Module:behaviour_info(optional_callbacks)). check_behav_list([], []) -> ok; check_behav_list([L | L1], L2) -> - ?line true = lists:member(L, L2), - ?line L3 = lists:delete(L, L2), + true = lists:member(L, L2), + L3 = lists:delete(L, L2), check_behav_list(L1, L3). - +callbacks(application) -> + [{start,2}, {stop,1}]; +callbacks(gen_server) -> + [{init,1}, {handle_call,3}, {handle_cast,2}, + {handle_info,2}, {terminate,2}, {code_change,3}, + {format_status,2}]; +callbacks(gen_fsm) -> + [{init,1}, {handle_event,3}, {handle_sync_event,4}, + {handle_info,3}, {terminate,3}, {code_change,4}, + {format_status,2}]; +callbacks(gen_event) -> + [{init,1}, {handle_event,2}, {handle_call,2}, + {handle_info,2}, {terminate,2}, {code_change,3}, + {format_status,2}]; +callbacks(supervisor_bridge) -> + [{init,1}, {terminate,2}]; +callbacks(supervisor) -> + [{init,1}]. + +optional_callbacks(application) -> + []; +optional_callbacks(gen_server) -> + [{format_status,2}]; +optional_callbacks(gen_fsm) -> + [{format_status,2}]; +optional_callbacks(gen_event) -> + [{format_status,2}]; +optional_callbacks(supervisor_bridge) -> + []; +optional_callbacks(supervisor) -> + []. diff --git a/lib/stdlib/test/erl_lint_SUITE.erl b/lib/stdlib/test/erl_lint_SUITE.erl index ea61b2082b..27f95bd3fa 100644 --- a/lib/stdlib/test/erl_lint_SUITE.erl +++ b/lib/stdlib/test/erl_lint_SUITE.erl @@ -42,6 +42,7 @@ unused_vars_warn_rec/1, unused_vars_warn_fun/1, unused_vars_OTP_4858/1, + unused_unsafe_vars_warn/1, export_vars_warn/1, shadow_vars/1, unused_import/1, @@ -55,7 +56,7 @@ otp_11772/1, otp_11771/1, otp_11872/1, export_all/1, bif_clash/1, - behaviour_basic/1, behaviour_multiple/1, + behaviour_basic/1, behaviour_multiple/1, otp_11861/1, otp_7550/1, otp_8051/1, format_warn/1, @@ -63,7 +64,7 @@ too_many_arguments/1, basic_errors/1,bin_syntax_errors/1, predef/1, - maps/1,maps_type/1 + maps/1,maps_type/1,otp_11851/1 ]). % Default timetrap timeout (set in init_per_testcase). @@ -89,16 +90,16 @@ all() -> otp_5362, otp_5371, otp_7227, otp_5494, otp_5644, otp_5878, otp_5917, otp_6585, otp_6885, otp_10436, otp_11254, otp_11772, otp_11771, otp_11872, export_all, - bif_clash, behaviour_basic, behaviour_multiple, + bif_clash, behaviour_basic, behaviour_multiple, otp_11861, otp_7550, otp_8051, format_warn, {group, on_load}, too_many_arguments, basic_errors, bin_syntax_errors, predef, - maps, maps_type]. + maps, maps_type, otp_11851]. groups() -> [{unused_vars_warn, [], [unused_vars_warn_basic, unused_vars_warn_lc, unused_vars_warn_rec, unused_vars_warn_fun, - unused_vars_OTP_4858]}, + unused_vars_OTP_4858, unused_unsafe_vars_warn]}, {on_load, [], [on_load_successful, on_load_failing]}]. init_per_suite(Config) -> @@ -730,6 +731,48 @@ unused_vars_OTP_4858(Config) when is_list(Config) -> ?line [] = run(Config, Ts), ok. +unused_unsafe_vars_warn(Config) when is_list(Config) -> + Ts = [{unused_unsafe1, + <<"t1() -> + UnusedVar1 = unused1, + try + UnusedVar2 = unused2 + catch + _:_ -> + ok + end, + ok. + ">>, + [warn_unused_vars], + {warnings,[{2,erl_lint,{unused_var,'UnusedVar1'}}, + {4,erl_lint,{unused_var,'UnusedVar2'}}]}}, + {unused_unsafe2, + <<"t2() -> + try + X = 1 + catch + _:_ -> ok + end. + ">>, + [warn_unused_vars], + {warnings,[{3,erl_lint,{unused_var,'X'}}]}}, + {unused_unsafe2, + <<"t3(X, Y) -> + X andalso Y. + ">>, + [warn_unused_vars], + []}, + {unused_unsafe4, + <<"t4() -> + _ = (catch X = X = 1), + _ = case ok of _ -> fun() -> ok end end, + fun (X) -> X end. + ">>, + [warn_unused_vars], + []}], + run(Config, Ts), + ok. + export_vars_warn(doc) -> "Warnings for exported variables"; export_vars_warn(suite) -> []; @@ -808,7 +851,19 @@ export_vars_warn(Config) when is_list(Config) -> [], {error,[{9,erl_lint,{unbound_var,'B'}}], [{9,erl_lint,{exported_var,'Y',{'receive',2}}}, - {10,erl_lint,{shadowed_var,'B',generate}}]}} + {10,erl_lint,{shadowed_var,'B',generate}}]}}, + + {exp4, + <<"t(X) -> + if true -> Z = X end, + case X of + 1 -> Z; + 2 -> X + end, + Z = X. + ">>, + [], + {warnings,[{7,erl_lint,{exported_var,'Z',{'if',2}}}]}} ], ?line [] = run(Config, Ts), ok. @@ -832,8 +887,15 @@ shadow_vars(Config) when is_list(Config) -> ">>, [nowarn_shadow_vars], {error,[{9,erl_lint,{unbound_var,'B'}}], - [{9,erl_lint,{exported_var,'Y',{'receive',2}}}]}}], - + [{9,erl_lint,{exported_var,'Y',{'receive',2}}}]}}, + {shadow2, + <<"t() -> + _ = (catch MS = MS = 1), % MS used unsafe + _ = case ok of _ -> fun() -> ok end end, + fun (MS) -> MS end. % MS not shadowed here + ">>, + [], + []}], ?line [] = run(Config, Ts), ok. @@ -958,6 +1020,45 @@ unsafe_vars(Config) when is_list(Config) -> [warn_unused_vars], {errors,[{3,erl_lint,{unsafe_var,'X',{'if',2}}}, {4,erl_lint,{unsafe_var,'X',{'if',2}}}], + []}}, + {unsafe8, + <<"t8(X) -> + case X of _ -> catch _Y = 1 end, + _Y." + >>, + [], + {errors,[{3,erl_lint,{unsafe_var,'_Y',{'catch',2}}}], + []}}, + {unsafe9, + <<"t9(X) -> + case X of + 1 -> + catch A = 1, % unsafe only here + B = 1, + C = 1, + D = 1; + 2 -> + A = 2, + % B not bound here + C = 2, + catch D = 2; % unsafe in two clauses + 3 -> + A = 3, + B = 3, + C = 3, + catch D = 3; % unsafe in two clauses + 4 -> + A = 4, + B = 4, + C = 4, + D = 4 + end, + {A,B,C,D}." + >>, + [], + {errors,[{24,erl_lint,{unsafe_var,'A',{'catch',4}}}, + {24,erl_lint,{unsafe_var,'B',{'case',2}}}, + {24,erl_lint,{unsafe_var,'D',{'case',2}}}], []}} ], ?line [] = run(Config, Ts), @@ -2648,8 +2749,9 @@ otp_11872(Config) when is_list(Config) -> t() -> 1. ">>, - {error,[{6,erl_lint,{undefined_type,{product,0}}}], - [{8,erl_lint,{new_var_arity_type,map}}]} = + {error,[{6,erl_lint,{undefined_type,{product,0}}}, + {8,erl_lint,{undefined_type,{dict,0}}}], + [{8,erl_lint,{new_builtin_type,{map,0}}}]} = run_test2(Config, Ts, []), ok. @@ -3080,6 +3182,193 @@ behaviour_multiple(Config) when is_list(Config) -> ?line [] = run(Config, Ts), ok. +otp_11861(doc) -> + "OTP-11861. behaviour_info() and -callback."; +otp_11861(suite) -> []; +otp_11861(Conf) when is_list(Conf) -> + CallbackFiles = [callback1, callback2, callback3, + bad_behaviour1, bad_behaviour2], + lists:foreach(fun(M) -> + F = filename:join(?datadir, M), + Opts = [{outdir,?privdir}, return], + {ok, M, []} = compile:file(F, Opts) + end, CallbackFiles), + CodePath = code:get_path(), + true = code:add_path(?privdir), + Ts = [{otp_11861_1, + <<" + -export([b1/1]). + -behaviour(callback1). + -behaviour(callback2). + + -spec b1(atom()) -> integer(). + b1(A) when is_atom(A)-> + 3. + ">>, + [], + %% b2/1 is optional in both modules + {warnings,[{4,erl_lint, + {conflicting_behaviours,{b1,1},callback2,3,callback1}}]}}, + {otp_11861_2, + <<" + -export([b2/1]). + -behaviour(callback1). + -behaviour(callback2). + + -spec b2(integer()) -> atom(). + b2(I) when is_integer(I)-> + a. + ">>, + [], + %% b2/1 is optional in callback2, but not in callback1 + {warnings,[{3,erl_lint,{undefined_behaviour_func,{b1,1},callback1}}, + {4,erl_lint, + {conflicting_behaviours,{b2,1},callback2,3,callback1}}]}}, + {otp_11861_3, + <<" + -callback b(_) -> atom(). + -optional_callbacks({b1,1}). % non-existing and ignored + ">>, + [], + []}, + {otp_11861_4, + <<" + -callback b(_) -> atom(). + -optional_callbacks([{b1,1}]). % non-existing + ">>, + [], + %% No behaviour-info(), but callback. + {errors,[{3,erl_lint,{undefined_callback,{lint_test,b1,1}}}],[]}}, + {otp_11861_5, + <<" + -optional_callbacks([{b1,1}]). % non-existing + ">>, + [], + %% No behaviour-info() and no callback: warning anyway + {errors,[{2,erl_lint,{undefined_callback,{lint_test,b1,1}}}],[]}}, + {otp_11861_6, + <<" + -optional_callbacks([b1/1]). % non-existing + behaviour_info(callbacks) -> [{b1,1}]. + ">>, + [], + %% behaviour-info() and no callback: warning anyway + {errors,[{2,erl_lint,{undefined_callback,{lint_test,b1,1}}}],[]}}, + {otp_11861_7, + <<" + -optional_callbacks([b1/1]). % non-existing + -callback b(_) -> atom(). + behaviour_info(callbacks) -> [{b1,1}]. + ">>, + [], + %% behaviour-info() callback: warning + {errors,[{2,erl_lint,{undefined_callback,{lint_test,b1,1}}}, + {3,erl_lint,{behaviour_info,{lint_test,b,1}}}], + []}}, + {otp_11861_8, + <<" + -callback b(_) -> atom(). + -optional_callbacks([b/1, {b, 1}]). + ">>, + [], + {errors,[{3,erl_lint,{redefine_optional_callback,{b,1}}}],[]}}, + {otp_11861_9, + <<" + -behaviour(gen_server). + -export([handle_call/3,handle_cast/2,handle_info/2, + code_change/3, init/1, terminate/2]). + handle_call(_, _, _) -> ok. + handle_cast(_, _) -> ok. + handle_info(_, _) -> ok. + code_change(_, _, _) -> ok. + init(_) -> ok. + terminate(_, _) -> ok. + ">>, + [], + []}, + {otp_11861_9, + <<" + -behaviour(gen_server). + -export([handle_call/3,handle_cast/2,handle_info/2, + code_change/3, init/1, terminate/2, format_status/2]). + handle_call(_, _, _) -> ok. + handle_cast(_, _) -> ok. + handle_info(_, _) -> ok. + code_change(_, _, _) -> ok. + init(_) -> ok. + terminate(_, _) -> ok. + format_status(_, _) -> ok. % optional callback + ">>, + [], + %% Nothing... + []}, + {otp_11861_10, + <<" + -optional_callbacks([{b1,1,bad}]). % badly formed and ignored + behaviour_info(callbacks) -> [{b1,1}]. + ">>, + [], + []}, + {otp_11861_11, + <<" + -behaviour(bad_behaviour1). + ">>, + [], + {warnings,[{2,erl_lint, + {ill_defined_behaviour_callbacks,bad_behaviour1}}]}}, + {otp_11861_12, + <<" + -behaviour(non_existing_behaviour). + ">>, + [], + {warnings,[{2,erl_lint, + {undefined_behaviour,non_existing_behaviour}}]}}, + {otp_11861_13, + <<" + -behaviour(bad_behaviour_none). + ">>, + [], + {warnings,[{2,erl_lint,{undefined_behaviour,bad_behaviour_none}}]}}, + {otp_11861_14, + <<" + -callback b(_) -> atom(). + ">>, + [], + []}, + {otp_11861_15, + <<" + -optional_callbacks([{b1,1,bad}]). % badly formed + -callback b(_) -> atom(). + ">>, + [], + []}, + {otp_11861_16, + <<" + -callback b(_) -> atom(). + -callback b(_) -> atom(). + ">>, + [], + {errors,[{3,erl_lint,{redefine_callback,{b,1}}}],[]}}, + {otp_11861_17, + <<" + -behaviour(bad_behaviour2). + ">>, + [], + {warnings,[{2,erl_lint,{undefined_behaviour_callbacks, + bad_behaviour2}}]}}, + {otp_11861_18, + <<" + -export([f1/1]). + -behaviour(callback3). + f1(_) -> ok. + ">>, + [], + []} + ], + ?line [] = run(Conf, Ts), + true = code:set_path(CodePath), + ok. + otp_7550(doc) -> "Test that the new utf8/utf16/utf32 types do not allow size or unit specifiers."; otp_7550(Config) when is_list(Config) -> @@ -3145,8 +3434,8 @@ format_warn(Config) when is_list(Config) -> ok. format_level(Level, Count, Config) -> - ?line W = get_compilation_warnings(Config, "format", - [{warn_format, Level}]), + ?line W = get_compilation_result(Config, "format", + [{warn_format, Level}]), %% Pick out the 'format' warnings. ?line FW = lists:filter(fun({_Line, erl_lint, {format_error, _}}) -> true; (_) -> false @@ -3330,42 +3619,22 @@ bin_syntax_errors(Config) -> ok. predef(doc) -> - "OTP-10342: Predefined types: array(), digraph(), and so on"; + "OTP-10342: No longer predefined types: array(), digraph(), and so on"; predef(suite) -> []; predef(Config) when is_list(Config) -> - W = get_compilation_warnings(Config, "predef", []), + W = get_compilation_result(Config, "predef", []), [] = W, - W2 = get_compilation_warnings(Config, "predef2", []), - Tag = deprecated_builtin_type, - [{7,erl_lint,{Tag,{array,0},{array,array,1},"OTP 18.0"}}, - {12,erl_lint,{Tag,{dict,0},{dict,dict,2},"OTP 18.0"}}, - {17,erl_lint,{Tag,{digraph,0},{digraph,graph},"OTP 18.0"}}, - {27,erl_lint,{Tag,{gb_set,0},{gb_sets,set,1},"OTP 18.0"}}, - {32,erl_lint,{Tag,{gb_tree,0},{gb_trees,tree,2},"OTP 18.0"}}, - {37,erl_lint,{Tag,{queue,0},{queue,queue,1},"OTP 18.0"}}, - {42,erl_lint,{Tag,{set,0},{sets,set,1},"OTP 18.0"}}, - {47,erl_lint,{Tag,{tid,0},{ets,tid},"OTP 18.0"}}] = W2, - Ts = [{otp_10342_1, - <<"-compile(nowarn_deprecated_type). - - -spec t(dict()) -> non_neg_integer(). - - t(D) -> - erlang:phash2(D, 3000). - ">>, - {[nowarn_unused_function]}, - []}, - {otp_10342_2, - <<"-spec t(dict()) -> non_neg_integer(). - - t(D) -> - erlang:phash2(D, 3000). - ">>, - {[nowarn_unused_function]}, - {warnings,[{1,erl_lint, - {deprecated_builtin_type,{dict,0},{dict,dict,2}, - "OTP 18.0"}}]}}], - [] = run(Config, Ts), + %% dict(), digraph() and so on were removed in Erlang/OTP 18.0. + E2 = get_compilation_result(Config, "predef2", []), + Tag = undefined_type, + {[{7,erl_lint,{Tag,{array,0}}}, + {12,erl_lint,{Tag,{dict,0}}}, + {17,erl_lint,{Tag,{digraph,0}}}, + {27,erl_lint,{Tag,{gb_set,0}}}, + {32,erl_lint,{Tag,{gb_tree,0}}}, + {37,erl_lint,{Tag,{queue,0}}}, + {42,erl_lint,{Tag,{set,0}}}, + {47,erl_lint,{Tag,{tid,0}}}],[]} = E2, ok. maps(Config) -> @@ -3470,7 +3739,94 @@ maps_type(Config) when is_list(Config) -> t(M) -> M. ">>, [], - {warnings,[{3,erl_lint,{new_var_arity_type,map}}]}}], + {warnings,[{3,erl_lint,{new_builtin_type,{map,0}}}]}}], + [] = run(Config, Ts), + ok. + +otp_11851(doc) -> + "OTP-11851: More atoms can be used as type names + bug fixes."; +otp_11851(Config) when is_list(Config) -> + Ts = [ + {otp_11851_1, + <<"-export([t/0]). + -type range(A, B) :: A | B. + + -type union(A) :: A. + + -type product() :: integer(). + + -type tuple(A) :: A. + + -type map(A) :: A. + + -type record() :: a | b. + + -type integer(A) :: A. + + -type atom(A) :: A. + + -type binary(A, B) :: A | B. + + -type 'fun'() :: integer(). + + -type 'fun'(X) :: X. + + -type 'fun'(X, Y) :: X | Y. + + -type all() :: range(atom(), integer()) | union(pid()) | product() + | tuple(reference()) | map(function()) | record() + | integer(atom()) | atom(integer()) + | binary(pid(), tuple()) | 'fun'(port()) + | 'fun'() | 'fun'(<<>>, 'none'). + + -spec t() -> all(). + + t() -> + a. + ">>, + [], + []}, + {otp_11851_2, + <<"-export([a/1, b/1, t/0]). + + -callback b(_) -> integer(). + + -callback ?MODULE:a(_) -> integer(). + + a(_) -> 3. + + b(_) -> a. + + t()-> a. + ">>, + [], + {errors,[{5,erl_lint,{bad_callback,{lint_test,a,1}}}],[]}}, + {otp_11851_3, + <<"-export([a/1]). + + -spec a(_A) -> boolean() when + _ :: atom(), + _A :: integer(). + + a(_) -> true. + ">>, + [], + {errors,[{4,erl_parse,"bad type variable"}],[]}}, + {otp_11851_4, + <<" + -spec a(_) -> ok. + -spec a(_) -> ok. + + -spec ?MODULE:a(_) -> ok. + -spec ?MODULE:a(_) -> ok. + ">>, + [], + {errors,[{3,erl_lint,{redefine_spec,{a,1}}}, + {5,erl_lint,{redefine_spec,{lint_test,a,1}}}, + {6,erl_lint,{redefine_spec,{lint_test,a,1}}}, + {6,erl_lint,{spec_fun_undefined,{a,1}}}], + []}} + ], [] = run(Config, Ts), ok. @@ -3487,9 +3843,9 @@ run(Config, Tests) -> end, lists:foldl(F, [], Tests). -%% Compiles a test file and returns the list of warnings. +%% Compiles a test file and returns the list of warnings/errors. -get_compilation_warnings(Conf, Filename, Warnings) -> +get_compilation_result(Conf, Filename, Warnings) -> ?line DataDir = ?datadir, ?line File = filename:join(DataDir, Filename), {ok,Bin} = file:read_file(File++".erl"), @@ -3498,6 +3854,7 @@ get_compilation_warnings(Conf, Filename, Warnings) -> Test = lists:nthtail(Start+Length, FileS), case run_test(Conf, Test, Warnings) of {warnings, Ws} -> Ws; + {errors,Es,Ws} -> {Es,Ws}; [] -> [] end. diff --git a/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour1.erl b/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour1.erl new file mode 100644 index 0000000000..230f4b4519 --- /dev/null +++ b/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour1.erl @@ -0,0 +1,6 @@ +-module(bad_behaviour1). + +-export([behaviour_info/1]). + +behaviour_info(callbacks) -> + [{a,1,bad}]. diff --git a/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour2.erl b/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour2.erl new file mode 100644 index 0000000000..bb755ce18b --- /dev/null +++ b/lib/stdlib/test/erl_lint_SUITE_data/bad_behaviour2.erl @@ -0,0 +1,6 @@ +-module(bad_behaviour2). + +-export([behaviour_info/1]). + +behaviour_info(callbacks) -> + undefined. diff --git a/lib/stdlib/test/erl_lint_SUITE_data/callback1.erl b/lib/stdlib/test/erl_lint_SUITE_data/callback1.erl new file mode 100644 index 0000000000..3cc5b51879 --- /dev/null +++ b/lib/stdlib/test/erl_lint_SUITE_data/callback1.erl @@ -0,0 +1,6 @@ +-module(callback1). + +-callback b1(I :: integer()) -> atom(). +-callback b2(A :: atom()) -> integer(). + +-optional_callbacks([{b2,1}]). diff --git a/lib/stdlib/test/erl_lint_SUITE_data/callback2.erl b/lib/stdlib/test/erl_lint_SUITE_data/callback2.erl new file mode 100644 index 0000000000..211cf9f115 --- /dev/null +++ b/lib/stdlib/test/erl_lint_SUITE_data/callback2.erl @@ -0,0 +1,6 @@ +-module(callback2). + +-callback b1(I :: integer()) -> atom(). +-callback b2(A :: atom()) -> integer(). + +-optional_callbacks([b1/1, b2/1]). diff --git a/lib/stdlib/test/erl_lint_SUITE_data/callback3.erl b/lib/stdlib/test/erl_lint_SUITE_data/callback3.erl new file mode 100644 index 0000000000..97b3ecb860 --- /dev/null +++ b/lib/stdlib/test/erl_lint_SUITE_data/callback3.erl @@ -0,0 +1,8 @@ +-module(callback3). + +-export([behaviour_info/1]). + +behaviour_info(callbacks) -> + [{f1, 1}]; +behaviour_info(_) -> + undefined. diff --git a/lib/stdlib/test/erl_lint_SUITE_data/predef.erl b/lib/stdlib/test/erl_lint_SUITE_data/predef.erl index ee9073aa67..3cb7bf40f1 100644 --- a/lib/stdlib/test/erl_lint_SUITE_data/predef.erl +++ b/lib/stdlib/test/erl_lint_SUITE_data/predef.erl @@ -5,8 +5,8 @@ -export_type([array/0, digraph/0, gb_set/0]). -%% Before Erlang/OTP 17.0 local re-definitions of pre-defined opaque -%% types were ignored but did not generate any warning. +%% Since Erlang/OTP 18.0 array() and so on are no longer pre-defined, +%% so there is nothing special about them at all. -opaque array() :: atom(). -opaque digraph() :: atom(). -opaque gb_set() :: atom(). diff --git a/lib/stdlib/test/erl_pp_SUITE.erl b/lib/stdlib/test/erl_pp_SUITE.erl index babf3a49eb..12817943d0 100644 --- a/lib/stdlib/test/erl_pp_SUITE.erl +++ b/lib/stdlib/test/erl_pp_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2006-2013. All Rights Reserved. +%% Copyright Ericsson AB 2006-2014. 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 @@ -50,7 +50,7 @@ otp_6321/1, otp_6911/1, otp_6914/1, otp_8150/1, otp_8238/1, otp_8473/1, otp_8522/1, otp_8567/1, otp_8664/1, otp_9147/1, - otp_10302/1, otp_10820/1, otp_11100/1]). + otp_10302/1, otp_10820/1, otp_11100/1, otp_11861/1]). %% Internal export. -export([ehook/6]). @@ -83,7 +83,7 @@ groups() -> {tickets, [], [otp_6321, otp_6911, otp_6914, otp_8150, otp_8238, otp_8473, otp_8522, otp_8567, otp_8664, otp_9147, - otp_10302, otp_10820, otp_11100]}]. + otp_10302, otp_10820, otp_11100, otp_11861]}]. init_per_suite(Config) -> Config. @@ -874,6 +874,7 @@ type_examples() -> {ex3,<<"-type paren() :: (ann2()). ">>}, {ex4,<<"-type t1() :: atom(). ">>}, {ex5,<<"-type t2() :: [t1()]. ">>}, + {ex56,<<"-type integer(A) :: A. ">>}, {ex6,<<"-type t3(Atom) :: integer(Atom). ">>}, {ex7,<<"-type '\\'t::4'() :: t3('\\'foobar'). ">>}, {ex8,<<"-type t5() :: {t1(), t3(foo)}. ">>}, @@ -1204,8 +1205,18 @@ otp_11100(Config) when is_list(Config) -> []}}), ok. +otp_11861(doc) -> + "OTP-11861. behaviour_info() and -callback."; +otp_11861(suite) -> []; +otp_11861(Config) when is_list(Config) -> + "-optional_callbacks([bar/0]).\n" = + pf({attribute,3,optional_callbacks,[{bar,0}]}), + "-optional_callbacks([{bar,1,bad}]).\n" = + pf({attribute,4,optional_callbacks,[{bar,1,bad}]}), + ok. + pf(Form) -> - lists:flatten(erl_pp:form(Form,none)). + lists:flatten(erl_pp:form(Form, none)). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% diff --git a/lib/stdlib/test/gen_event_SUITE.erl b/lib/stdlib/test/gen_event_SUITE.erl index 60a1ba8c60..576a5adfce 100644 --- a/lib/stdlib/test/gen_event_SUITE.erl +++ b/lib/stdlib/test/gen_event_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. 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 @@ -106,7 +106,7 @@ start(Config) when is_list(Config) -> ?line {error, {already_started, _}} = gen_event:start({global, my_dummy_name}), - exit(Pid6, shutdown), + ok = gen_event:stop({global, my_dummy_name}, shutdown, 10000), receive {'EXIT', Pid6, shutdown} -> ok after 10000 -> diff --git a/lib/stdlib/test/gen_fsm_SUITE.erl b/lib/stdlib/test/gen_fsm_SUITE.erl index 336065b258..75796ab1b6 100644 --- a/lib/stdlib/test/gen_fsm_SUITE.erl +++ b/lib/stdlib/test/gen_fsm_SUITE.erl @@ -27,6 +27,9 @@ -export([start1/1, start2/1, start3/1, start4/1, start5/1, start6/1, start7/1, start8/1, start9/1, start10/1, start11/1, start12/1]). +-export([stop1/1, stop2/1, stop3/1, stop4/1, stop5/1, stop6/1, stop7/1, + stop8/1, stop9/1, stop10/1]). + -export([ abnormal1/1, abnormal2/1]). -export([shutdown/1]). @@ -66,6 +69,8 @@ groups() -> [{start, [], [start1, start2, start3, start4, start5, start6, start7, start8, start9, start10, start11, start12]}, + {stop, [], + [stop1, stop2, stop3, stop4, stop5, stop6, stop7, stop8, stop9, stop10]}, {abnormal, [], [abnormal1, abnormal2]}, {sys, [], [sys1, call_format_status, error_format_status, terminate_crash_format, @@ -281,6 +286,105 @@ start12(Config) when is_list(Config) -> ok. +%% Anonymous, reason 'normal' +stop1(_Config) -> + {ok, Pid} = gen_fsm:start(?MODULE, [], []), + ok = gen_fsm:stop(Pid), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_fsm:stop(Pid)), + ok. + +%% Anonymous, other reason +stop2(_Config) -> + {ok,Pid} = gen_fsm:start(?MODULE, [], []), + ok = gen_fsm:stop(Pid, other_reason, infinity), + false = erlang:is_process_alive(Pid), + ok. + +%% Anonymous, invalid timeout +stop3(_Config) -> + {ok,Pid} = gen_fsm:start(?MODULE, [], []), + {'EXIT',_} = (catch gen_fsm:stop(Pid, other_reason, invalid_timeout)), + true = erlang:is_process_alive(Pid), + ok = gen_fsm:stop(Pid), + false = erlang:is_process_alive(Pid), + ok. + +%% Registered name +stop4(_Config) -> + {ok,Pid} = gen_fsm:start({local,to_stop},?MODULE, [], []), + ok = gen_fsm:stop(to_stop), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_fsm:stop(to_stop)), + ok. + +%% Registered name and local node +stop5(_Config) -> + {ok,Pid} = gen_fsm:start({local,to_stop},?MODULE, [], []), + ok = gen_fsm:stop({to_stop,node()}), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_fsm:stop({to_stop,node()})), + ok. + +%% Globally registered name +stop6(_Config) -> + {ok, Pid} = gen_fsm:start({global, to_stop}, ?MODULE, [], []), + ok = gen_fsm:stop({global,to_stop}), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_fsm:stop({global,to_stop})), + ok. + +%% 'via' registered name +stop7(_Config) -> + dummy_via:reset(), + {ok, Pid} = gen_fsm:start({via, dummy_via, to_stop}, + ?MODULE, [], []), + ok = gen_fsm:stop({via, dummy_via, to_stop}), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_fsm:stop({via, dummy_via, to_stop})), + ok. + +%% Anonymous on remote node +stop8(_Config) -> + {ok,Node} = test_server:start_node(gen_fsm_SUITE_stop8,slave,[]), + Dir = filename:dirname(code:which(?MODULE)), + rpc:call(Node,code,add_path,[Dir]), + {ok, Pid} = rpc:call(Node,gen_fsm,start,[?MODULE,[],[]]), + ok = gen_fsm:stop(Pid), + false = rpc:call(Node,erlang,is_process_alive,[Pid]), + {'EXIT',noproc} = (catch gen_fsm:stop(Pid)), + true = test_server:stop_node(Node), + {'EXIT',{{nodedown,Node},_}} = (catch gen_fsm:stop(Pid)), + ok. + +%% Registered name on remote node +stop9(_Config) -> + {ok,Node} = test_server:start_node(gen_fsm_SUITE_stop9,slave,[]), + Dir = filename:dirname(code:which(?MODULE)), + rpc:call(Node,code,add_path,[Dir]), + {ok, Pid} = rpc:call(Node,gen_fsm,start,[{local,to_stop},?MODULE,[],[]]), + ok = gen_fsm:stop({to_stop,Node}), + undefined = rpc:call(Node,erlang,whereis,[to_stop]), + false = rpc:call(Node,erlang,is_process_alive,[Pid]), + {'EXIT',noproc} = (catch gen_fsm:stop({to_stop,Node})), + true = test_server:stop_node(Node), + {'EXIT',{{nodedown,Node},_}} = (catch gen_fsm:stop({to_stop,Node})), + ok. + +%% Globally registered name on remote node +stop10(_Config) -> + {ok,Node} = test_server:start_node(gen_fsm_SUITE_stop10,slave,[]), + Dir = filename:dirname(code:which(?MODULE)), + rpc:call(Node,code,add_path,[Dir]), + {ok, Pid} = rpc:call(Node,gen_fsm,start,[{global,to_stop},?MODULE,[],[]]), + global:sync(), + ok = gen_fsm:stop({global,to_stop}), + false = rpc:call(Node,erlang,is_process_alive,[Pid]), + {'EXIT',noproc} = (catch gen_fsm:stop({global,to_stop})), + true = test_server:stop_node(Node), + {'EXIT',noproc} = (catch gen_fsm:stop({global,to_stop})), + ok. + %% Check that time outs in calls work abnormal1(suite) -> []; abnormal1(Config) when is_list(Config) -> diff --git a/lib/stdlib/test/gen_server_SUITE.erl b/lib/stdlib/test/gen_server_SUITE.erl index 42694d8b5d..8b6654dd5e 100644 --- a/lib/stdlib/test/gen_server_SUITE.erl +++ b/lib/stdlib/test/gen_server_SUITE.erl @@ -36,6 +36,9 @@ get_state/1, replace_state/1, call_with_huge_message_queue/1 ]). +-export([stop1/1, stop2/1, stop3/1, stop4/1, stop5/1, stop6/1, stop7/1, + stop8/1, stop9/1, stop10/1]). + % spawn export -export([spec_init_local/2, spec_init_global/2, spec_init_via/2, spec_init_default_timeout/2, spec_init_global_default_timeout/2, @@ -51,7 +54,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - [start, crash, call, cast, cast_fast, info, abcast, + [start, {group,stop}, crash, call, cast, cast_fast, info, abcast, multicall, multicall_down, call_remote1, call_remote2, call_remote3, call_remote_n1, call_remote_n2, call_remote_n3, spec_init, @@ -63,7 +66,8 @@ all() -> call_with_huge_message_queue]. groups() -> - []. + [{stop, [], + [stop1, stop2, stop3, stop4, stop5, stop6, stop7, stop8, stop9, stop10]}]. init_per_suite(Config) -> Config. @@ -237,6 +241,105 @@ start(Config) when is_list(Config) -> process_flag(trap_exit, OldFl), ok. +%% Anonymous, reason 'normal' +stop1(_Config) -> + {ok, Pid} = gen_server:start(?MODULE, [], []), + ok = gen_server:stop(Pid), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_server:stop(Pid)), + ok. + +%% Anonymous, other reason +stop2(_Config) -> + {ok,Pid} = gen_server:start(?MODULE, [], []), + ok = gen_server:stop(Pid, other_reason, infinity), + false = erlang:is_process_alive(Pid), + ok. + +%% Anonymous, invalid timeout +stop3(_Config) -> + {ok,Pid} = gen_server:start(?MODULE, [], []), + {'EXIT',_} = (catch gen_server:stop(Pid, other_reason, invalid_timeout)), + true = erlang:is_process_alive(Pid), + ok = gen_server:stop(Pid), + false = erlang:is_process_alive(Pid), + ok. + +%% Registered name +stop4(_Config) -> + {ok,Pid} = gen_server:start({local,to_stop},?MODULE, [], []), + ok = gen_server:stop(to_stop), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_server:stop(to_stop)), + ok. + +%% Registered name and local node +stop5(_Config) -> + {ok,Pid} = gen_server:start({local,to_stop},?MODULE, [], []), + ok = gen_server:stop({to_stop,node()}), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_server:stop({to_stop,node()})), + ok. + +%% Globally registered name +stop6(_Config) -> + {ok, Pid} = gen_server:start({global, to_stop}, ?MODULE, [], []), + ok = gen_server:stop({global,to_stop}), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_server:stop({global,to_stop})), + ok. + +%% 'via' registered name +stop7(_Config) -> + dummy_via:reset(), + {ok, Pid} = gen_server:start({via, dummy_via, to_stop}, + ?MODULE, [], []), + ok = gen_server:stop({via, dummy_via, to_stop}), + false = erlang:is_process_alive(Pid), + {'EXIT',noproc} = (catch gen_server:stop({via, dummy_via, to_stop})), + ok. + +%% Anonymous on remote node +stop8(_Config) -> + {ok,Node} = test_server:start_node(gen_server_SUITE_stop8,slave,[]), + Dir = filename:dirname(code:which(?MODULE)), + rpc:call(Node,code,add_path,[Dir]), + {ok, Pid} = rpc:call(Node,gen_server,start,[?MODULE,[],[]]), + ok = gen_server:stop(Pid), + false = rpc:call(Node,erlang,is_process_alive,[Pid]), + {'EXIT',noproc} = (catch gen_server:stop(Pid)), + true = test_server:stop_node(Node), + {'EXIT',{{nodedown,Node},_}} = (catch gen_server:stop(Pid)), + ok. + +%% Registered name on remote node +stop9(_Config) -> + {ok,Node} = test_server:start_node(gen_server_SUITE_stop9,slave,[]), + Dir = filename:dirname(code:which(?MODULE)), + rpc:call(Node,code,add_path,[Dir]), + {ok, Pid} = rpc:call(Node,gen_server,start,[{local,to_stop},?MODULE,[],[]]), + ok = gen_server:stop({to_stop,Node}), + undefined = rpc:call(Node,erlang,whereis,[to_stop]), + false = rpc:call(Node,erlang,is_process_alive,[Pid]), + {'EXIT',noproc} = (catch gen_server:stop({to_stop,Node})), + true = test_server:stop_node(Node), + {'EXIT',{{nodedown,Node},_}} = (catch gen_server:stop({to_stop,Node})), + ok. + +%% Globally registered name on remote node +stop10(_Config) -> + {ok,Node} = test_server:start_node(gen_server_SUITE_stop10,slave,[]), + Dir = filename:dirname(code:which(?MODULE)), + rpc:call(Node,code,add_path,[Dir]), + {ok, Pid} = rpc:call(Node,gen_server,start,[{global,to_stop},?MODULE,[],[]]), + global:sync(), + ok = gen_server:stop({global,to_stop}), + false = rpc:call(Node,erlang,is_process_alive,[Pid]), + {'EXIT',noproc} = (catch gen_server:stop({global,to_stop})), + true = test_server:stop_node(Node), + {'EXIT',noproc} = (catch gen_server:stop({global,to_stop})), + ok. + crash(Config) when is_list(Config) -> ?line error_logger_forwarder:register(), diff --git a/lib/stdlib/test/proc_lib_SUITE.erl b/lib/stdlib/test/proc_lib_SUITE.erl index 8dca69bac4..b6f1973a05 100644 --- a/lib/stdlib/test/proc_lib_SUITE.erl +++ b/lib/stdlib/test/proc_lib_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2012. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. 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 @@ -27,7 +27,7 @@ init_per_group/2,end_per_group/2, crash/1, sync_start_nolink/1, sync_start_link/1, spawn_opt/1, sp1/0, sp2/0, sp3/1, sp4/2, sp5/1, - hibernate/1]). + hibernate/1, stop/1]). -export([ otp_6345/1, init_dont_hang/1]). -export([hib_loop/1, awaken/1]). @@ -38,6 +38,7 @@ -export([otp_6345_init/1, init_dont_hang_init/1]). +-export([system_terminate/4]). -ifdef(STANDALONE). -define(line, noop, ). @@ -49,7 +50,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> [crash, {group, sync_start}, spawn_opt, hibernate, - {group, tickets}]. + {group, tickets}, stop]. groups() -> [{tickets, [], [otp_6345, init_dont_hang]}, @@ -361,10 +362,94 @@ init_dont_hang(Config) when is_list(Config) -> exit(Error) end. -init_dont_hang_init(Parent) -> +init_dont_hang_init(_Parent) -> 1 = 2. +%% Test proc_lib:stop/1,3 +stop(_Config) -> + Parent = self(), + SysMsgProc = + fun() -> + receive + {system,From,Request} -> + sys:handle_system_msg(Request,From,Parent,?MODULE,[],[]) + end + end, + + %% Normal case: + %% Process handles system message and terminated with given reason + Pid1 = proc_lib:spawn(SysMsgProc), + ok = proc_lib:stop(Pid1), + false = erlang:is_process_alive(Pid1), + + %% Process does not exit + {'EXIT',noproc} = (catch proc_lib:stop(Pid1)), + + %% Badly handled system message + DieProc = + fun() -> + receive + {system,_From,_Request} -> + exit(die) + end + end, + Pid2 = proc_lib:spawn(DieProc), + {'EXIT',{die,_}} = (catch proc_lib:stop(Pid2)), + + %% Hanging process => timeout + HangProc = + fun() -> + receive + {system,_From,_Request} -> + timer:sleep(5000) + end + end, + Pid3 = proc_lib:spawn(HangProc), + {'EXIT',timeout} = (catch proc_lib:stop(Pid3,normal,1000)), + + %% Success case with other reason than 'normal' + Pid4 = proc_lib:spawn(SysMsgProc), + ok = proc_lib:stop(Pid4,other_reason,infinity), + false = erlang:is_process_alive(Pid4), + + %% System message is handled, but process dies with other reason + %% than the given (in system_terminate/4 below) + Pid5 = proc_lib:spawn(SysMsgProc), + {'EXIT',{badmatch,2}} = (catch proc_lib:stop(Pid5,crash,infinity)), + false = erlang:is_process_alive(Pid5), + + %% Local registered name + Pid6 = proc_lib:spawn(SysMsgProc), + register(to_stop,Pid6), + ok = proc_lib:stop(to_stop), + undefined = whereis(to_stop), + false = erlang:is_process_alive(Pid6), + + %% Remote registered name + {ok,Node} = test_server:start_node(proc_lib_SUITE_stop,slave,[]), + Dir = filename:dirname(code:which(?MODULE)), + rpc:call(Node,code,add_path,[Dir]), + Pid7 = spawn(Node,SysMsgProc), + true = rpc:call(Node,erlang,register,[to_stop,Pid7]), + Pid7 = rpc:call(Node,erlang,whereis,[to_stop]), + ok = proc_lib:stop({to_stop,Node}), + undefined = rpc:call(Node,erlang,whereis,[to_stop]), + false = rpc:call(Node,erlang,is_process_alive,[Pid7]), + + %% Local and remote registered name, but non-existing + {'EXIT',noproc} = (catch proc_lib:stop(to_stop)), + {'EXIT',noproc} = (catch proc_lib:stop({to_stop,Node})), + + true = test_server:stop_node(Node), + + %% Remote registered name, but non-existing node + {'EXIT',{{nodedown,Node},_}} = (catch proc_lib:stop({to_stop,Node})), + ok. +system_terminate(crash,_Parent,_Deb,_State) -> + 1 = 2; +system_terminate(Reason,_Parent,_Deb,_State) -> + exit(Reason). %%----------------------------------------------------------------- %% The error_logger handler used. diff --git a/lib/stdlib/test/sys_SUITE.erl b/lib/stdlib/test/sys_SUITE.erl index f38bc87ae5..047ee9f1fa 100644 --- a/lib/stdlib/test/sys_SUITE.erl +++ b/lib/stdlib/test/sys_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. 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 @@ -202,14 +202,7 @@ spec_proc(Mod) -> {Mod,system_get_state},{throw,fail}},_}} -> ok end, - Mod:stop(), - WaitForUnregister = fun W() -> - case whereis(Mod) of - undefined -> ok; - _ -> timer:sleep(10), W() - end - end, - WaitForUnregister(), + ok = sys:terminate(Mod, normal), {ok,_} = Mod:start_link(4), ok = case catch sys:replace_state(Mod, fun(_) -> {} end) of {} -> @@ -218,8 +211,7 @@ spec_proc(Mod) -> {Mod,system_replace_state},{throw,fail}},_}} -> ok end, - Mod:stop(), - WaitForUnregister(), + ok = sys:terminate(Mod, normal), {ok,_} = Mod:start_link(4), StateFun = fun(_) -> error(fail) end, ok = case catch sys:replace_state(Mod, StateFun) of @@ -231,7 +223,7 @@ spec_proc(Mod) -> {'EXIT',{{callback_failed,StateFun,{error,fail}},_}} -> ok end, - Mod:stop(). + ok = sys:terminate(Mod, normal). %%%%%%%%%%%%%%%%%%%% %% Dummy server diff --git a/lib/stdlib/test/sys_sp1.erl b/lib/stdlib/test/sys_sp1.erl index e84ffcfa12..0fb288991f 100644 --- a/lib/stdlib/test/sys_sp1.erl +++ b/lib/stdlib/test/sys_sp1.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. 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 @@ -17,7 +17,7 @@ %% %CopyrightEnd% %% -module(sys_sp1). --export([start_link/1, stop/0]). +-export([start_link/1]). -export([alloc/0, free/1]). -export([init/1]). -export([system_continue/3, system_terminate/4, @@ -31,10 +31,6 @@ start_link(NumCh) -> proc_lib:start_link(?MODULE, init, [[self(),NumCh]]). -stop() -> - ?MODULE ! stop, - ok. - alloc() -> ?MODULE ! {self(), alloc}, receive @@ -70,11 +66,7 @@ loop(Chs, Parent, Deb) -> loop(Chs2, Parent, Deb2); {system, From, Request} -> sys:handle_system_msg(Request, From, Parent, - ?MODULE, Deb, Chs); - stop -> - sys:handle_debug(Deb, fun write_debug/3, - ?MODULE, {in, stop}), - ok + ?MODULE, Deb, Chs) end. system_continue(Parent, Deb, Chs) -> diff --git a/lib/stdlib/test/sys_sp2.erl b/lib/stdlib/test/sys_sp2.erl index 56a5e4d071..a0847b5838 100644 --- a/lib/stdlib/test/sys_sp2.erl +++ b/lib/stdlib/test/sys_sp2.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. 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 @@ -17,7 +17,7 @@ %% %CopyrightEnd% %% -module(sys_sp2). --export([start_link/1, stop/0]). +-export([start_link/1]). -export([alloc/0, free/1]). -export([init/1]). -export([system_continue/3, system_terminate/4, @@ -30,10 +30,6 @@ start_link(NumCh) -> proc_lib:start_link(?MODULE, init, [[self(),NumCh]]). -stop() -> - ?MODULE ! stop, - ok. - alloc() -> ?MODULE ! {self(), alloc}, receive @@ -45,11 +41,6 @@ free(Ch) -> ?MODULE ! {free, Ch}, ok. -%% can't use 2-tuple for state here as we do in sys_sp1, since the 2-tuple -%% is not compatible with the backward compatibility handling for -%% sys:get_state in sys.erl --record(state, {alloc,free}). - init([Parent,NumCh]) -> register(?MODULE, self()), Chs = channels(NumCh), @@ -74,11 +65,7 @@ loop(Chs, Parent, Deb) -> loop(Chs2, Parent, Deb2); {system, From, Request} -> sys:handle_system_msg(Request, From, Parent, - ?MODULE, Deb, Chs); - stop -> - sys:handle_debug(Deb, fun write_debug/3, - ?MODULE, {in, stop}), - ok + ?MODULE, Deb, Chs) end. system_continue(Parent, Deb, Chs) -> @@ -91,17 +78,17 @@ write_debug(Dev, Event, Name) -> io:format(Dev, "~p event = ~p~n", [Name, Event]). channels(NumCh) -> - #state{alloc=[], free=lists:seq(1,NumCh)}. + {_Allocated=[], _Free=lists:seq(1,NumCh)}. -alloc(#state{free=[]}=Channels) -> - {{error, "no channels available"}, Channels}; -alloc(#state{alloc=Allocated, free=[H|T]}) -> - {H, #state{alloc=[H|Allocated], free=T}}. +alloc({_, []}) -> + {error, "no channels available"}; +alloc({Allocated, [H|T]}) -> + {H, {[H|Allocated], T}}. -free(Ch, #state{alloc=Alloc, free=Free}=Channels) -> +free(Ch, {Alloc, Free}=Channels) -> case lists:member(Ch, Alloc) of true -> - #state{alloc=lists:delete(Ch, Alloc), free=[Ch|Free]}; + {lists:delete(Ch, Alloc), [Ch|Free]}; false -> Channels end. |