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2017-06-26Add test for using typed records in shellSvilen Ivanov
2017-06-12stdlib: Evaluate expressions in fun2ms bodiesHans Bolinder
The ms_transform module, used by ets:fun2ms/1 and dbg:fun2ms, evaluates constant arithmetic expressions. This is necessary since the Erlang compiler, which normally evaluates constant expressions, does not recognize the format generated by ms_transform.
2017-06-12Merge branch 'hasse/unicode_atoms/OTP-14285'Hans Bolinder
* hasse/unicode_atoms/OTP-14285: compiler: Handle (bad) Unicode parse transform module names kernel: Improve handling of Unicode filenames stdlib: Handle Unicode atoms in ms_transform stdlib: Improve Unicode handling of the Erlang parser stdlib: Handle unknown compiler options with Unicode stdlib: Handle Unicode macro names stdlib: Correct Unicode handling in escript dialyzer: Improve handling of Unicode parsetools: Improve handling of Unicode atoms stdlib: Handle Unicode atoms when formatting stacktraces stdlib: Add more checks of module names to the linter stdlib: Handle Unicode atoms better in io_lib_format stdlib: Handle Unicode atoms in c.erl
2017-06-09stdlib: Handle Unicode macro namesHans Bolinder
2017-06-09stdlib: Handle Unicode atoms when formatting stacktracesHans Bolinder
2017-06-09stdlib: Add more checks of module names to the linterHans Bolinder
Unicode atoms are handled better by the Erlang code linter. Module names are checked for character codes greater than 255. This means that modules invoked after the linter can assume that module names have only Latin-1 characters.
2017-06-07stdlib: Lookup src path in beamDan Gudmundsson
find and use source directive when searching for source file
2017-05-29Merge pull request #1476 from bjorng/bjorn/stdlib/erl_tar-timesBjörn Gustavsson
erl_tar: Fix handling of date and time
2017-05-29erl_tar: Fix handling of date and timeBjörn Gustavsson
Since aa0c4b0df7cdc, erl_tar would write the local time (instead of the POSIX time) into the tar header for the archived files. When extracting the tar file, the extracted file could be set to a future time (depending on the time zone). We could do a minimal fix, but this seems to be a good time to rewrite the time handling to use the new features that allow file info to be read and written in the POSIX time format. First reported here: https://github.com/erlang/rebar3/issues/1554
2017-05-23Merge pull request #1469 from josevalim/jv-unicode-normalize-errorDan Gudmundsson
Return error tuple on unicode normalization functions
2017-05-22Return error tuple on unicode normalization functionsJosé Valim
Prior to this patch, the normalization functions in the unicode module would raise a function clause error for non-utf8 binaries. This patch changes it so it returns {error, SoFar, Invalid} as characters_to_binary and characters_to_list does in the unicode module. Note string:next_codepoint/1 and string:next_grapheme had to be changed accordingly and also return an error tuple.
2017-05-22stdlib: Warn for bad type variables of parameterized typesHans Bolinder
The linter emits warnings about using '_' as type variable in parameterized types.
2017-05-19Merge branch 'master' into jv-gen-server-exitsSiri Hansen
2017-05-18stdlib: Add io_lib:limit_term/2Hans Bolinder
The term returned by io_lib:limit_term(Term, Depth) should return the same string if substituted for Term in io_lib:format("~P", [Term, Depth]) or io_lib:format("~W", [Term, Depth]).
2017-05-16Merge pull request #1453 from bjorng/bjorn/catch-warning/OTP-14401Björn Gustavsson
Warn for potentially unsafe use of get_stacktrace/0
2017-05-15Do not discard stacktraces on gen_server exitsJosé Valim
Prior to this patch, the stacktrace of an error or exit in a callback would always be discarded in crash reports. For example, an exit(crashed) in handle_call/3 would emit: =CRASH REPORT==== 10-May-2017::14:15:50 === crasher: initial call: gen_server_SUITE:init/1 pid: <0.201.0> registered_name: [] exception exit: crashed in function gen_server:terminate/8 (src/gen_server.erl, line 828) Note that the stacktrace is pointing to the gen_server internal terminate implementation that calls exit/1. This patch uses erlang:raise/3 so the stacktrace is not lost, allowing proc_lib to show the class, reason and stacktrace coming from the user implementation (in this case gen_server_SUITE): =CRASH REPORT==== 10-May-2017::14:16:44 === crasher: initial call: gen_server_SUITE:init/1 pid: <0.197.0> registered_name: [] exception exit: crashed in function gen_server_SUITE:handle_call/3 (gen_server_SUITE.erl, line 1529) This change is completely backwards compatible as using erlang:raise/3 will still emit the same exit reason to any linked process and monitor as before.
2017-05-15Merge pull request #1407 from eltex-ecss/auto_hibernate_timeoutIngela Andin
Add option hibernate_after to gen_server, gen_statem and gen_event. Also added to the deprecated gen_fsm behaviour. OTP14405
2017-05-12Warn for potentially unsafe use of get_stacktrace/0Björn Gustavsson
erlang:get_stacktrace/0 returns the stacktrace for the latest exception. The problem is that the stacktrace is kept until the next exception occurs. If the last exception was a 'function_clause' or a 'badarg', the arguments for the call are also kept forever. The arguments can be terms of any size (potentially huge). In a future release, we would like to only allow erlang:get_stacktrace/0 from within a 'try' expression. That would make it possible to clear the stacktrace when the 'try' expression is exited. The 'catch' expression has no natural end where the stacktrace could be cleared. The stacktrace could be cleared at the end of the function that the 'catch' occurs in, but that would cause problems in the following scenario (from real life, but simplified): try ... catch _:_ -> io:format(...), io:format("~p\n", [erlang:get_stacktrace()]) end. %% In io.erl. format(Fmt, Args) -> Res = case ... of SomePattern -> catch... ...; SomeOtherPattern -> %% Output the formatted string here ... end, clear_stacktrace(), %% Inserted by compiler. Res. The call to io:format() would always clear the stacktrace before it could be retrieved. That problem could be solved by tightning the scope in which the stacktrace is kept, but the rules for how long erlang:get_stacktrace/0 would work would become complicated. Therefore, the solution we suggest for a future major release of OTP is that erlang:get_stacktrace/0 will return [] if it is called outside the 'catch' part of a 'try' expression. To help users prepare, introduce a warning when it is likely that erlang:get_stacktrace/0 will always return an empty list, for example in this code: catch error(foo), Stk = erlang:get_stacktrace() or in this code: try Expr catch _:_ -> ok end, Stk = erlang:get_stacktrace()
2017-05-10Merge branch 'sverker/ets-select-replace-const'Sverker Eriksson
* sverker/ets-select-replace-const: stdlib: Add examples for ets:select_replace docs erts: Fix ets:select_replace with {const, NewTuple}
2017-05-10erts: Fix ets:select_replace with {const, NewTuple}Sverker Eriksson
Enable ets:select_replace to do a generic single object compare-and-swap operation of any ets-tuple using a matchspec like this: [{Old, [], [{const, New}]}] The only exception when this does not work is if the key contains maps or atoms looking like variables (like '$1').
2017-05-04Update copyright yearRaimo Niskanen
2017-05-04Merge branch 'rand/arbitrary_normal_distributions'Raimo Niskanen
* rand/arbitrary_normal_distributions: Disable heavy test case
2017-05-04Merge branch 'raimo/rand-dev/OTP-14295'Raimo Niskanen
* raimo/rand-dev/OTP-14295: Adjust timetrap
2017-05-02Disable heavy test caseRaimo Niskanen
2017-05-02Adjust timetrapRaimo Niskanen
2017-05-02Rolled back loop_receive function. HibernateAfterTimeout timeout used even ↵Anton N Ryabkov
in case of active timers exists. Added unit tests for hibernate_after functionality combined with gen_statem timers.
2017-05-02"auto_hibernate_timeout" option renamed to "hibernate_after".Anton N Ryabkov
It was done because "hibernate_after" option already used in ssl for the same reason.
2017-05-02Added support of auto_hibernate_timeout option for gen_statem.Anton N Ryabkov
2017-05-02Added support of auto_hibernate_timeout option for gen_server, gen_fsm, ↵Anton N Ryabkov
gen_event process's. There is realized gen_server, gen_fsm, gen_event automatic hibernation functionality. Added unit tests for realized functionality. Added documentation for auto_hibernate_timeout option.
2017-04-28Merge branch 'raimo/gen_statem-dev'Raimo Niskanen
OTP-14531 Generic time-outs in gen_statem Conflicts: lib/stdlib/test/erl_internal_SUITE.erl
2017-04-28Merge branch 'hasse/stdlib/fix_qlc_bug/OTP-14296'Hans Bolinder
* hasse/stdlib/fix_qlc_bug/OTP-14296: stdlib: Fix a test in sofs_SUITE debugger: Improve handling of pids, ports, and refs stdlib: Improve handling of pids, ports, and refs in qlc stdlib: Improve the Erlang shell's handling of references
2017-04-27Merge branch 'hasse/unicode_atoms/OTP-14285'Hans Bolinder
* hasse/unicode_atoms/OTP-14285: stdlib: Add Unicode modifier t to control sequence a stdlib: Add Unicode modifier t to control sequences w and W
2017-04-27stdlib: Fix a test in sofs_SUITEHans Bolinder
2017-04-27stdlib: Improve handling of pids, ports, and refs in qlcHans Bolinder
The extended parser introduced in last commit is used in qlc for solving an old bug: pids and refs could not be parsed by string_to_handle(). The parser is also used for adjustments regarding ETS identifiers (now references) in qlc_SUITE. Notice that pids, references, ports, and external functions that cannot be created in the currently running system cause syntax errors (as before).
2017-04-27stdlib: Improve the Erlang shell's handling of referencesHans Bolinder
As of Erlang/OTP 20.0, the type of ETS tables, ets:tid(), is a reference(). A request was put forward that the Erlang shell should be able to handle references in its input. This commit introduces an extended parser in module lib. It can parse pids, ports, references, and external funs under the condition that they can be created in the running system. The parser is meant to be used internally in Erlang/OTP. The alternative, to extend erl_scan and erl_parse, was deemed inferior as it would require the abstract format be able to represent pids, ports, references, and funs, which would be confusing as they are not expressions as such, but data types.
2017-04-27Merge branch 'rand/arbitrary_normal_distributions'Raimo Niskanen
* rand/arbitrary_normal_distributions: Show test case progress
2017-04-27Merge branch 'raimo/rand-dev/OTP-14295'Raimo Niskanen
* raimo/rand-dev/OTP-14295: Select better test measure points
2017-04-27Show test case progressRaimo Niskanen
2017-04-26Select better test measure pointsRaimo Niskanen
2017-04-26Merge pull request #1367 from josevalim/jv-dbgi-chunkBjörn Gustavsson
Introduce new "Dbgi" chunk OTP-14369
2017-04-25Store abstract code in the Dbgi chunkJosé Valim
The new Dbgi chunk returns data in the following format: {debug_info_v1, Backend, Data} This allows compilers to store the debug info in different formats. In order to retrieve a particular format, for instance, Erlang Abstract Format, one may invoke: Backend:debug_info(erlang_v1, Module, Data, Opts) Besides introducing the chunk above, this commit also: * Changes beam_lib:chunk(Beam, [:abstract_code]) to read from the new Dbgi chunk while keeping backwards compatibility with old .beams * Adds the {debug_info, {Backend, Data}} option to compile:file/2 and friends that are stored in the Dbgi chunk. This allows the debug info encryption mechanism to work across compilers * Improves dialyzer to work directly on Core Erlang, allowing languages that do not have the Erlang Abstract Format to be dialyzer as long as they emit the new chunk and their backend implementation is available Backwards compatibility is kept across the board except for those calling beam_lib:chunk(Beam, ["Abst"]), as the old chunk is no longer available. Note however the "Abst" chunk has always been optional. Future OTP versions may remove parsing the "Abst" chunk altogether from beam_lib once Erlang 19 and earlier is no longer supported. The current Dialyzer implementation still supports earlier .beam files and such may also be removed in future versions.
2017-04-24stdlib: Add Unicode modifier t to control sequence aHans Bolinder
The Unicode translation modifier 't' is added to the io:fread/2,3 control sequence 'a'.
2017-04-24stdlib: Add Unicode modifier t to control sequences w and WHans Bolinder
As of the introduction of Unicode characters in atoms, the control sequences 'w' and 'W' can return non-Latin-1 characters, unless some measure is taken. This commit makes sure that '~w' and '~W' always return Latin-1 characters, or bytes, which can be output to ports or written to raw files. The Unicode translation modifier 't' is needed to return non-Latin-1 characters.
2017-04-24Merge branch 'dgud/stdlib/unicode-string/OTP-10289'Dan Gudmundsson
* dgud/stdlib/unicode-string/OTP-10289: Handle chardata in string:to_float and string:to_list New unicode aware string module that works with unicode:chardata() Add nf(k)d, nf(k)c conversion functions to unicode module Reorder code and whitespace fixes Add unicode_util
2017-04-24Handle chardata in string:to_float and string:to_listDan Gudmundsson
2017-04-24New unicode aware string module that works with unicode:chardata()Dan Gudmundsson
Works with unicode:chardata() as input as was decided on OTP board meeting as response to EEP-35 a long time ago. Works on graphemes clusters as base, with a few exceptions, does not handle classic (nor nfd'ified) Hangul nor the extended grapheme clusters such as the prepend class. That would make handling binaries as input/output very slow. List input => list output, binary input => binary output and mixed input => mixed output for all find/split functions. So that results can be post-processed without the need to invoke unicode:characters_to_list|binary for intermediate data. pad functions return lists of unicode:chardata() for performance.
2017-04-24Add nf(k)d, nf(k)c conversion functions to unicode moduleDan Gudmundsson
2017-04-24Add unicode_utilDan Gudmundsson
A base for unicode functions, not intended to be a user api. Whitespace returns a reasonable subset of non nobreak whitespace characters. Implementation notes: Make function clauses instead of using arrays and store tuples instead of maps to save space.
2017-04-24Merge branch 'zandra/stdlib/optional-callbacks/OTP-13801'Zandra Norman
* zandra/stdlib/optional-callbacks/OTP-13801: wx: make wx_object callbacks optional stdlib: Make gen_fsm callbacks optional stdlib: Make gen_event callbacks optional stdlib: Make gen_server callbacks optional
2017-04-21stdlib: Make gen_statem callbacks optionalZandra Norman