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2018-04-29Introduce is_map_key/2 guard BIFMichał Muskała
This complements the `map_get/2` guard BIF introduced in #1784. Rationale. `map_get/2` allows accessing map fields in guards, but it might be problematic in more complex guard expressions, for example: foo(X) when map_get(a, X) =:= 1 or is_list(X) -> ... The `is_list/1` part of the guard could never succeed since the `map_get/2` guard would fail the whole guard expression. In this situation, this could be solved by using `;` instead of `or` to separate the guards, but it is not possible in every case. To solve this situation, this PR proposes a `is_map_key/2` guard that allows to check if a map has key inside a guard before trying to access that key. When combined with `is_map/1` this allows to construct a purely boolean guard expression testing a value of a key in a map. Implementation. Given the use case motivating the introduction of this function, the PR contains compiler optimisations that produce optimial code for the following guard expression: foo(X) when is_map(X) and is_map_key(a, X) and map_get(a, X) =:= 1 -> ok; foo(_) -> error. Given all three tests share the failure label, the `is_map_key/2` and `is_map/2` tests are optimised away. As with `map_get/2` the `is_map_key/2` BIF is allowed in match specs.
2018-04-26Merge branch 'sverker/monitor-send-combo'Sverker Eriksson
* sverker/monitor-send-combo: erts: Optimize monitor signal by message piggyback
2018-04-26erts: Optimize monitor signal by message piggybackSverker Eriksson
If no message/signal is sent (to same destination) then monitor signal is flushed when process is scheduled out.
2018-04-26erts: Cleanup some codeSverker Eriksson
2018-04-26Merge branch 'rickard/dirty-schedulers-test-fix/OTP-15046'Rickard Green
* rickard/dirty-schedulers-test-fix/OTP-15046: Do not run tests that conflicts with dirty schedulers test
2018-04-26Merge branch 'siri/upgrade_SUITE/stop-inets-before-start-ftp'Siri Hansen
* siri/upgrade_SUITE/stop-inets-before-start-ftp: Add correction of relup when upgrading from 20-21 with inets and ftp/tftp
2018-04-26[stdlib/sys]: install one debug function more times (#1781)Pouriya
Allow installing multiple instances of sys debug function This commit solves a bug which allowed installing {Fun,State} as sys debug function even if Fun was already installed. This happened in the case when the current State of the debug fun was undefined. Also, the new format {Id,Fun,State} of debug functions can be installed, allowing multiple instances of the same fun.
2018-04-26Merge pull request #1759 from sunboshan/sys-fixSiri Hansen
[stdlib/sys.erl] Fix sys module's debug statistics not including the out message count when using gen_server:call/2. OTP-15047
2018-04-26Merge branch 'hasse/stdlib/calendar_systemtime/OTP-13413'Hans Bolinder
* hasse/stdlib/calendar_systemtime/OTP-13413: stdlib: Add system time functions to module calendar
2018-04-26Merge branch 'hans/crypto/EVP_DH_key/OTP-14864'Hans Nilsson
* hans/crypto/EVP_DH_key/OTP-14864: crypto: Test case with a failing Pub/Priv/P/G combination This quadruple is from a failing test when trying to EVP-ify the dh functions. crypto: Use EVP-api in dh_compute_key_nif and dh_generate_key_nif
2018-04-26crypto: Test case with a failing Pub/Priv/P/G combinationHans Nilsson
This quadruple is from a failing test when trying to EVP-ify the dh functions.
2018-04-26crypto: Use EVP-api in dh_compute_key_nif and dh_generate_key_nifHans Nilsson
2018-04-26Merge branch 'rickard/process_info/OTP-14966'Rickard Green
* rickard/process_info/OTP-14966: Restore merge of signal queues in queue_messages() if main lock is held Fix message tracing
2018-04-26Merge pull request #1797 from bjorng/bjorn/compiler/fold-apply/ERL-614Björn Gustavsson
Rewrite a call of a literal external fun to a direct call OTP-15044
2018-04-26Merge branch 'bjorn/compiler/misc'Björn Gustavsson
* bjorn/compiler/misc: beam_validator: Clear X registers in wait_timeout sys_core_fold: Eliminate crash for map update in guard
2018-04-26Merge branch 'hans/ssh/cuddle_tests'Hans Nilsson
* hans/ssh/cuddle_tests: ssh: Better logging in test case
2018-04-26Merge branch 'hans/ssh/doc_changes/OTP-15030'Hans Nilsson
* hans/ssh/doc_changes/OTP-15030: public_key: Add markers for private and public keys crypto: Add marker for engine_ref ssh: Use -spec and -type for documentation generation
2018-04-25public_key: Add markers for private and public keysHans Nilsson
2018-04-25crypto: Add marker for engine_refHans Nilsson
2018-04-25ssh: Use -spec and -type for documentation generationHans Nilsson
2018-04-25Merge branch 'hasse/stdlib/chars_limit_io/OTP-14983'Hans Bolinder
* hasse/stdlib/chars_limit_io/OTP-14983: stdlib: Modify the printing of map associations with wWpP stdlib: Introduce characters limit of formated strings stdlib: Modify ~w/~W when number of characters is limited stdlib: io_lib{_pretty}: Avoid tuple_to_list when possible stdlib: Introduce characters limit of formatted strings
2018-04-25stdlib: Modify the printing of map associations with wWpPHans Bolinder
Use the same depth for all (printed) elements of a map. Since the order of keys can vary when printing a map--maps:iterator/1 and maps:next/1 are used--it is more consistent to print all associations with the same depth. If the associations printed are limited by the depth, the selection of associations is arbitrary, as before.
2018-04-25stdlib: Introduce characters limit of formated stringsHans Bolinder
Inspiration from module lager_format. Also some improvements of Unicode handling. io_lib:format/3 and io_lib:fwrite/3 are new functions. The representation of the options is a list, but we are considering using a map instead. If we change, it will happen after Erlang/OTP 21.0-rc1 is released.
2018-04-25Merge PR-1794 from sverker/hipe-remove-MAP_NORESERVE-needSverker Eriksson
Remove config test of MAP_NORESERVE for hipe on x86_64
2018-04-25Do not run tests that conflicts with dirty schedulers testRickard Green
2018-04-25Merge branch 'hans/ssh/type_changes/OTP-15002'Hans Nilsson
* hans/ssh/type_changes/OTP-15002: ssh: Changes suggested by dialyzer ssh: New -spec and -type
2018-04-25ssh: Changes suggested by dialyzerHans Nilsson
2018-04-25ssh: New -spec and -typeHans Nilsson
2018-04-25ssh: Better logging in test caseHans Nilsson
2018-04-25Restore merge of signal queues in queue_messages() if main lock is heldRickard Green
2018-04-25Rewrite a call of a literal external fun to a direct callBjörn Gustavsson
Rewrite calls such as: (fun erlang:abs/1)(-42) to: erlang:abs(-42) While we are at it, also add rewriting of apply/2 with a fixed number of arguments to a direct call of the fun. For example: apply(F, [A,B]) would be rewritten to: F(A, B) https://bugs.erlang.org/browse/ERL-614
2018-04-25stdlib: Modify ~w/~W when number of characters is limitedHans Bolinder
A bug fix: limited maps end with "...", not "...=>...". A modification: wW separate pairs with " => ", not "=>". When the output is limited on number of characters, the term is balanced by wW the same way as is done with pP (see commit bc38638).
2018-04-25stdlib: io_lib{_pretty}: Avoid tuple_to_list when possibleHans Bolinder
2018-04-25stdlib: Introduce characters limit of formatted stringsHans Bolinder
The name of the io_lib_pretty:print/2 option 'max_chars' is changed to 'line_max_chars' (used by module shell only). The new option for limiting the number of returned characters of io_lib_pretty:print() is called 'chars_limit'.
2018-04-25Merge branch 'hasse/stdlib/map_guards_shell/OTP-15035/ERL-613'Hans Bolinder
* hasse/stdlib/map_guards_shell/OTP-15035/ERL-613: erts: Correct abstract format doc regarding map creation stdlib: Correct the linter's check of map guard expressions
2018-04-25Merge pull request #1785 from richcarl/append-not-concatHans Bolinder
Do not use lists:concat where lists:append is intended
2018-04-25beam_validator: Clear X registers in wait_timeoutBjörn Gustavsson
Help us find more compiler bugs.
2018-04-25sys_core_fold: Eliminate crash for map update in guardBjörn Gustavsson
sys_core_fold would crash when attempting to optimize this code: t() when (#{})#{}-> c.
2018-04-25Update primary bootstrapBjörn Gustavsson
2018-04-25Update preloaded modulesBjörn Gustavsson
2018-04-25Merge branch 'map-get-bif' of git://github.com/michalmuskala/otpBjörn Gustavsson
* 'map-get-bif' of git://github.com/michalmuskala/otp: Introduce map_get guard-safe function OTP-15037
2018-04-25Merge pull request #1779 from ↵Ingela Andin
IngelaAndin/ingela/ssl/hello-pause/ERL-169/OTP-14372 Add new API functions to enable smoother user customizations based on TLS hello extensions
2018-04-25Merge branch 'lukas/erts/poll-thread/OTP-14346'Lukas Larsson
* lukas/erts/poll-thread/OTP-14346: erts: nif resource stop from poll-thread is a indirect call
2018-04-25Merge branch 'lukas/erts/dump_SUITE_fix'Lukas Larsson
* lukas/erts/dump_SUITE_fix: erts: Increase file read timeout for signal_abort test
2018-04-24Merge branch 'john/erts/fix-lcnt-toggle-test'John Högberg
* john/erts/fix-lcnt-toggle-test: Disregard locks that can't be toggled in lcnt_SUITE
2018-04-24Merge pull request #1790 from jhogberg/john/erts/more-alloc-info/OTP-14961John Högberg
Improve memory instrumentation OTP-15024 OTP-14961
2018-04-24erts: Correct abstract format doc regarding map creationHans Bolinder
2018-04-24stdlib: Correct the linter's check of map guard expressionsHans Bolinder
The check is used by evaluating modules such as erl_eval. An example: "if map_size(#{}) =:= 0 -> ok end.".
2018-04-24Merge branch 'raimo/stdlib/gen_statem-dev/OTP-14015'Raimo Niskanen
* raimo/stdlib/gen_statem-dev/OTP-14015: Fix after feedback Improve pointer to User's Guide Fix after feedback on 'When to use' Add a 'When to use' section Fix timeout parsing and doc feedback Improve doc, change images to .svg erl_docgen: Implement width in image tag Update User's Guide and pointers to it Improve error reasons from state enter call
2018-04-24Merge branch 'maint'Hans Nilsson
* maint: Updated OTP version Prepare release ssh: Fix server crashes for exit-normal signals
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