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2019-03-29Prepare releaseErlang/OTP
2019-03-28erl_tar: Use read_ahead when reading compressed tar filesJohn Högberg
Jumping around in a compressed file is nowhere near as cheap as for uncompressed files, as it requires reading and decompressing up until the desired position. Using read_ahead will improve performance slightly.
2019-03-11Prepare releaseErlang/OTP
2019-03-05stdlib: Correct and optimize pretty printing of stringsHans Bolinder
Avoid traversing all of the list/string when only part of it will be used. An explicit check that the list is flat is needed since string:slice() accepts deep lists and more.
2019-03-04Merge branch 'hasse/stdlib/optimize_calendar_rfc3339/OTP-15630' into maintHans Bolinder
* hasse/stdlib/optimize_calendar_rfc3339/OTP-15630: stdlib: Optimize calendar:system_time_to_rfc3339()
2019-02-20stdlib: Optimize calendar:system_time_to_rfc3339()Hans Bolinder
Not using io_lib for formatting makes the conversion several times faster.
2019-02-18stdlib: Fix a bug in the Erlang Pretty PrinterHans Bolinder
Long atom names in combination with <c><<>></c> could cause a crash.
2019-02-18Merge branch 'maint-21' into maintRaimo Niskanen
* maint-21: Updated OTP version Prepare release
2019-02-18Merge branch 'hasse/stdlib/optimize_pretty_print/ERIERL-306/OTP-15573' into ↵Hans Bolinder
maint * hasse/stdlib/optimize_pretty_print/ERIERL-306/OTP-15573: Update primary bootstrap stdlib: Optimize formatted printing of terms
2019-02-15Prepare releaseErlang/OTP
2019-02-14stdlib: Optimize formatted printing of termsHans Bolinder
Try calling iolist_size() before calling string:length(). The reason is that calls to string:length/1 are slow when the argument is not a list of integers (or contains UNICODE).
2019-02-12Merge branch 'FNickRU/stdlib/optimize_calendar/PR-2121/OTP-15572' into maintHans Bolinder
* FNickRU/stdlib/optimize_calendar/PR-2121/OTP-15572: Optimize calendar:gregorian_days_to_date/1
2019-01-31Optimize calendar:gregorian_days_to_date/1Stanislav Mayorov
This patch improves the performance of calendar:gregorian_days_to_date/1 by changing the algorithm for finding the year to log-logarithmic. The old implementation has linear complexity, which makes function too slow for large values. For example: There is an API that allows you to create events for future dates. There are users of this API who, for some reasons, choose dates very far in the future. In such conditions, function works very slow. New implementation based on interpolation search, takes 1 or 2 iterations at most cases and free from such a flaw. A unit test was also developed to illustrate the speed of a function at large values.
2019-01-16Merge pull request #2074 from gomoripeti/singleton_char_typeHans Bolinder
Fixes in erl_parse:abstract_type/0 type
2019-01-08Merge pull request #2022 from gomoripeti/ms_remote_call_errorSiri Hansen
Fix remote-call error in ms_transform
2018-12-28Fix erl_parse:af_constraint()Péter Gömöri
Add missing list wrapper.
2018-12-28Fix erl_parse:af_fun_type()Péter Gömöri
`af_function_type()` already contains the `{'type', anno(), 'fun', ...}` tuple so it does not have to be wrapped again.
2018-12-27Add literal character to erl_parse:abstract_type/0 typePéter Gömöri
This is allowed since 19.3 (commit 6d238032) and documented since commit 744fb920.
2018-12-10Prepare releaseErlang/OTP
2018-11-29stdlib: Let calendar:system_time_to_rfc3339() keep fractionsHans Bolinder
RFC3339 mentions in paragraph 5.1 that if certain conditions are fulfilled, then sorting date and time strings results in a time-ordered sequence. One of the conditions is that the strings must have the same number of fractional second digits. This commits makes sure this is indeed the case.
2018-11-21Fix inadvertently suppressed warning for unused variableBjörn Gustavsson
An external fun could inadvertently suppress warnings for unused variables, such as in this example: bug() -> BugVar = foo(), if true -> fun m:f/1 end. There would be no warning that `BugVar` was unused. The bug was introduced in ff432e262e652, which was the commit that extended external funs to allow variables. https://bugs.erlang.org/browse/ERL-762
2018-11-19Fix remote-call error in ms_transformPéter Gömöri
Before this patch the following call resulted in the below error ``` 1> dbg:fun2ms(fun(_) -> m:f() end). Error: Unknown error code {122,m,f} ``` Now it is properly formatted as ``` 1> dbg:fun2ms(fun(_) -> m:f() end). Error: fun containing the remote function call 'm:f/0' (called in body) cannot be translated into match_spec ```
2018-10-19beam_lib: Remove obsolete module() from the beam() typeBjörn Gustavsson
The type `beam()` in the `beam_lib` module is confusing: -type beam() :: module() | file:filename() | binary(). It says that the module name can be used to identify the BEAM module to be accessed, but passing in the module name only works if the BEAM file is located in the current working directory because the module is not searched for in the code path. The reason that it is allowed to pass in the module name as an atom is for backward compatibility. A long time ago, atoms instead of strings were used as filenames. For that reason, `filename` and `file` still accept atoms as filenames (although the practice is frown upon). `beam_lib` accepts an atom as the filename for the same reason. To remove the confusion, remove `module()` from the type and the mention of it in the documentation. Code that uses an atom as a filename will still work, but Dialyzer will issue a warning. https://bugs.erlang.org/browse/ERL-696
2018-10-08Merge branch 'john/compiler/deterministic-paths/OTP-15245/ERL-706' into maintJohn Högberg
* john/compiler/deterministic-paths/OTP-15245/ERL-706: compiler: Forward +source flag to epp and fix bug in +deterministic epp: Allow user to set source name independently of input file name
2018-10-05epp: Allow user to set source name independently of input file nameJohn Högberg
Note that this does *not* affect -include()'d files or the -file() directive.
2018-10-04Merge PR-1962 from gomoripeti/ms_bit_size OTP-15343Sverker Eriksson
Document bit_size in match-specs and allow in fun2ms
2018-09-27Update kernel, stdlib and sasl appups for OTP-21.2Siri Hansen
2018-09-25Document bit_size in match-specs and allow in fun2msPéter Gömöri
It is already allowed in match-specs.
2018-09-17stdlib: Allow lists with binaries in the Format argumentHans Bolinder
As a consequence of some refactoring (OTP-14983, option 'chars_limit'), the Format argument of io_lib:format() no longer accepts binaries in lists in Erlang/OTP 21.0. Note that if Format is not of type io:format(), control sequences in Format are ignored. This can result in unpredictable behaviour if, for example, the output of io_lib:format() is used as Format: if the output happens to be a string(), then control sequences are interpreted, otherwise not. A check that Format is of type io:format() will likely be introduced in Erlang/OTP 22.0. That will probably mean work for some users, but considering how unpredictable io_lib:format() is, we should try to fix that.
2018-09-12[proc_lib] Improve crash reports for single line loggingSiri Hansen
2018-09-12[logger] Remove encoding option from logger_formatterSiri Hansen
The encoding option was introduced in commit 270d909696a753af022df72a404c73f2895b4a02, to allow report callbacks to format according to a given encoding. There was, however, no connection between this encoding option, and the encoding of the device to which the logger handler was writing. Since a formatter is defined to return unicode:chardata(), and in order to avoid mismatch with the encoding of the device, the encoding option is now removed from the formatter. The handler itself must make sure that it does not write illegal data to its device.
2018-08-31Fix type spec of ms_transform:parse_trans/2Péter Gömöri
It can also return errors and warnings.
2018-08-28Merge pull request #1940 from ↵Hans Bolinder
uabboli/hb/stdlib/fix_dets_file_name/OTP-15253/ERL-555 stdlib: Let dets:open_file() crash when given raw file name
2018-08-22stdlib: Fix specs of filename:basedir/2,2Hans Bolinder
See also https://bugs.erlang.org/browse/ERL-667.
2018-08-21stdlib: Let dets:open_file() crash when given raw file nameHans Bolinder
See also ERL-55 and OTP-13229.
2018-08-20stdlib: Correct contracts in module io_lib_formatHans Bolinder
2018-08-20stdlib: Improve error handling in module io_libHans Bolinder
2018-08-13Correct error behavior of is_map_key/2 in guardsBjörn Gustavsson
Consider the following functions: foo() -> bar(not_a_map). bar(M) when not is_map_key(a, M) -> ok; bar(_) -> error. What will `foo/0` return? It depends. If the module is compiled with the default compiler options, the return value will be `ok`. If the module is compiled with the `inline` option, the return value will be `error`. The correct value is `error`, because the call to `is_map_key/2` when the second argument is not a map should fail the entire guard. That is the way other failing guards BIFs are handled. For example: foo() -> bar(not_a_tuple). bar(T) when not element(1, T) -> ok; bar(_) -> error. `foo/0` always returns `error` (whether the code is inlined or not). This bug can be fixed by changing the classification of `is_map_key/2` in the `erl_internal` module. It is now classified as a type test, which is incorrect because type tests should not fail. Reclassifying it as a plain guard BIF corrects the bug. This correction also fixes the internal consistency check failure which was reported in: https://bugs.erlang.org/browse/ERL-699
2018-07-13Merge branch 'siri/logger/post-21/OTP-15132' into maintSiri Hansen
* siri/logger/post-21/OTP-15132: [logger] Allow setting kernel parameter 'logger_level' to 'all' [kernel] Reduce risk of dead lock when terminating logger_sup [logger] Fix regexp replacement for unicode strings Update proc_lib:report_cb to obey logger formatter's size limiting params [logger] Allow report callback with two arguments returning a string Don't call report_cb from cth_log_redirect - formatter does that Add legacy test of sasl_report_file_h and size limiting [logger] Remove compiler warnings in test [logger] Fix problem with test cases waiting for handler restart [logger] Add ?LOG macro which takes Level as argument [logger] Improve spec for set_handler_config/3 and set_primary_config/2 [logger] Generate .png file from .dia [logger] Update documentation
2018-07-13Update proc_lib:report_cb to obey logger formatter's size limiting paramsSiri Hansen
2018-07-04Merge branch 'maint-21' into maintJohn Högberg
* maint-21: Updated OTP version Update release notes Update version numbers Eliminate a crash in the beam_jump pass stdlib: Fix a 'chars_limit' bug Fix a race condition when generating async operation ids Fix internal compiler error for map_get/2 beam_type: Fix unsafe optimization public_key: Remove moduli 5121 and 7167 Thoose were added by 598629aeba9de98e8cdf5637043eb34e5d407751 but are not universaly supported.
2018-06-29Merge pull request #1853 from gomoripeti/fix_type_unary_opHans Bolinder
Fix typo in erl_parse type unary_op()
2018-06-28Fix typo in erl_parse type unary_op()Péter Gömöri
2018-06-28stdlib: Fix a 'chars_limit' bugHans Bolinder
2018-06-25stdlib: Add a few uses of erl_annoHans Bolinder
With DEBUG=true in erl_anno, erl_parse, and erl_pp a few (harmless) non-opaque accesses of annotations were found.
2018-06-18Update copyright yearHenrik Nord
2018-06-14Deprecate otp_mibsLukas Larsson
2018-06-13Merge branch 'raimo/stdlib/gen_statem-dev/OTP-14015'Raimo Niskanen
* raimo/stdlib/gen_statem-dev/OTP-14015: Show state changes in sys:trace
2018-06-12Show state changes in sys:traceRaimo Niskanen
2018-06-12Merge pull request #1835 from sirihansen/siri/logger-fixSiri Hansen