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Also modified erl_bif_types:infinity_bsl() when called with zero as
first argument. As of writing this, erlang:'bsl'/2 is modified on the
master branch to never fail if called with a huge second argument.
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See also https://bugs.erlang.org/browse/ERL-551.
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The Maps implementation handles ?unit in more cases.
Exactly when t_is_none_or_unit() is to be called is not clear to me.
The added cases are about a map type being ?unit, but the key or the
value of an association can also be ?unit, but that is not always
checked.
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* hasse/dialyzer/map_fixes/OTP-14572:
dialyzer: Adjust a test case
dialyzer: Modify handling of singleton map key types
Dialyzer: Rewrite one map type invariant
Dialyzer: Rewrite some of the docs of map types
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The implementation of OTP-14218 (commit 6d3b38a) has a weakness: only
a very limited part of the type form is checked. This is now fixed:
types not used by specs are checked equally well as types used by
specs.
The new function erl_types:t_from_form_check_remote() checks usage of
remote types. It does not expand used local types, and has (almost) no
limits on depth and size.
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The test case loop.erl shows that there is a problem with certain
singleton key types. Here the internal representation toggles between
#{a | b => ...} and #{a => ..., b => ...}
The choice is to turn #{a | b => ...} into #{a => ..., b => ...} early
(t_from_form()). The aim is to keep as much info as possible (in
pairs). However, including complex singleton keys (tuples, maps) in
this scheme is potentially too costly, and a bit complicated. So one
more choice is made: let atoms and number (and nothing else) be
singleton types, and let complex keys go into the default key.
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Substitute try/catch for an obsoletely used catch.
Thanks to Kostis for pointing it out.
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As of commit 854ee8b (Erlang/OTP 18) warnings about using '_' as type
variable in parameterized types have not been output.
The code of erl_types:t_var_names() is corrected. The spec is also
corrected (thanks to Kostis for pointing out the bug).
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which serves no purpose after all the
hipe load&purge fixes merged at
32729cab75325de58bf127e6e8836348071b8682
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erl_bif_types contains a fixed and improved copy-paste (obvious from the
dead Max_range2_leq_zero if branches) of hipe_icode_range:range_rem/2.
For now, delete the dead code and propagate back fixes and improvements
to hipe_icode_range.
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* maint:
dialyzer: Improve a warning
dialyzer: Fix a weird warning
dialyzer: Fix an opaque bug
dialyzer: Minor fix
Conflicts:
lib/dialyzer/src/dialyzer_dataflow.erl
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When a pattern a type do not match, opaque warnings were given
precedence before structure mismatches.
This is no longer always the case.
Mentioned by Nick Marino on erlang-questions.
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The table used during translation of forms to types used to be a
dictionary of the type info (-type(), -opaque(), and -record()) for
all modules. Now it is reduced to the modules that are needed to
handle references to types in other modules.
The PLT:s type info is still kept on the heap.
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* maint:
dialyzer: Increase time limit for tests
dialyzer: Optimize typesig
dialyzer: Optimize evaluation of complex code
dialyzer: Optimize collection of variables
Conflicts:
lib/dialyzer/src/dialyzer_typesig.erl
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* maint:
dialyzer: Compact 'file' annotations in Core code
dialyzer: Try to reduce memory usage
dialyzer: Use less memory when translating contracts
dialyzer: Use maps instaed of dict
dialyzer: Use maps instead of dict for module contracts map
dialyzer: Compress a few more ETS tables
dialyzer: Optimize memory consumption
dialyzer: Reduce memory consumption during 'remote' phase
dialyzer: Update code for finding parallelism
compiler: Do not spawn process when dialyzing
dialyzer: Reduce ETS usage during the typesig phase
dialyzer: Optimize graph condensation
dialyzer: Do not send full PLTs as messages
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* maint:
dialyzer: Fix check of parameterized opaque types
Conflicts:
lib/hipe/cerl/erl_types.erl
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* hasse/dialyzer/fix_opaque_parms/OTP-14130:
dialyzer: Fix check of parameterized opaque types
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* maint:
stdlib: Allow characters in types and constant patterns
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Two parameters used to be "compatible" if one is a specialization of
the other, in the way that the input type of t_limit() is a
specialization of the output type. This check is now relaxed: any() in
any of the two parameters is compatible with any type of the other
parameter.
The change is due to bugus warnings.
A clause for maps has been added.
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Characters ($char) can be used in constant pattern expressions. They
can also be used in types and contracts.
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* maint:
dialyzer: Substitute 'opacity' for 'opaqueness'
dialyzer: Improve a warning message
dialyzer: Improve a warning message
dialyzer: Correct a warnings message
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Suggested by Kostis.
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Conflicts:
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/beam_load.c
and added macro DBG_TRACE_MFA_P in beam_load.h
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by introducing hipe_bifs:commit_patch_load/1
that creates the HipeModule.
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Just like the BEAM loader state (as returned by
erlang:prepare_loading/2), the HiPE loader state is contained in a magic
binary.
Eventually, we will separate HiPE loading into a prepare and a finalise
phase, like the BEAM loader, where the prepare phase will be implemented
by hipe_unified_loader and the finalise phase be implemented in C by
hipe_load.c and beam_load.c, making prepare side-effect free and
finalise atomic. The finalise phase will be exposed through the
erlang:finish_loading/1 API, just like the BEAM loader, as this will
allow HiPE and BEAM modules to be mixed in the same atomic "commit".
The usage of a loader state makes it easier to keep track of all
resources allocated during loading, and will not only make it easy to
prevent leaks when hipe_unified_loader crashes, but also paves the way
for proper, leak-free, unloading of HiPE modules.
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* maint:
dialyzer: Fix opaque bug
dialyzer: Fix opaque bugs
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and hipe_bifs:update_code_size
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A step toward better integration of hipe load and purge
Highlights:
* code_server no longer needs to call hipe_unified_loader:post_beam_load/1
Instead new internal function hipe_redirect_to_module()
is called by loading BIFs to patch native call sites if needed.
* hipe_purge_module() is called by erts_internal:purge_module/2
to purge any native code.
* struct hipe_mfa_info redesigned and only used for exported
functions that are called from or implemented by native code.
A list of native call sites (struct hipe_ref) are kept for each hipe_mfa_info.
* struct hipe_sdesc used by hipe_find_mfa_from_ra()
to build native stack traces.
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The "decoration" of opaque types works better than before when opaque
types are used by other opaque types.
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t_from_form() sometimes returned a more general type than it should
have done due to a bug in from_form_loop(): it stopped when the limit
was exceeded, which could mean a collapsed type. Returning a type with
smaller depth should fix this.
is_specialization() now handles opaque types before unions, which
should fix another problem.
The bugs reported by Kostis.
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* maint:
erl_bif_types: Properly unopaque maps:merge/2 args
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into maint
* margnus1/dialyzer/fix_maps_opaque/ERL-249/PR-1161/OTP-13878:
erl_bif_types: Properly unopaque maps:merge/2 args
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erl_bif_types:type/5 was calling erl_types:map_pairwise_merge/3 directly
with its (potentially opaque) arguments, causing Dialyzer crashes.
Bug (ERL-249) reported and minimised test case provided by Felipe
Ripoll.
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