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The sys_pre_expand module used to do a lot more (translate records and
funs, for example), but now it does very little. Most of the code is
an identify transformation of the abstract format.
The identity transformation part of the code must be maintained and
kept correct when new forms are added to the abstract format. That
adds to the maintance burden. It also adds (slightly) to compilation
times. Therefore, we want to eliminate sys_pre_expand, moving all of
its (non-identity) transformations to better places.
As a preliminary first step, move the code that adds the pre-defined
functions (such as module_info/0) to a new function in erl_internal.
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* maint:
beam_lib: Correct type for the abstract code chunk
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The abstract_code chunk can also contain {eof,_}, {error,_}, and
{warning,_} in addition to the abstract forms that make up the Erlang
syntax proper.
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Fix some older errors as well.
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* maint:
Fix xmllint-warnings
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* raimo/gen_statem-callback_mode/OTP-13752:
ssl: Upgrade suite testing skipped if stdlib upgrade is required
Fix version numbers and dependencies
Conflicts:
lib/ssl/src/ssl.appup.src
lib/ssl/vsn.mk
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* josevalim/large-binary-strings/PR-1131/OTP-13794:
Move expansion of strings in binaries to v3_core
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This speeds up the compilation of binary literals
with string values in them. For example, compiling
a file with a ~340kB binary would yield the following
times by the compiler:
Compiling "foo"
parse_module : 0.130 s 5327.6 kB
transform_module : 0.000 s 5327.6 kB
lint_module : 0.011 s 5327.8 kB
expand_module : 0.508 s 71881.2 kB
v3_core : 0.463 s 11.5 kB
Notice the increase in memory and processing time
in expand_module and v3_core. This happened because
expand_module would expand the string in binaries
into chars. For example, the binary <<"foo">>, which
is represented as
{bin, 1, [
{bin_element, 1, {string, 1, "foo"}, default, default}
]}
would be converted to
{bin, 1, [
{bin_element, 1, {char, 1, $f}, default, default},
{bin_element, 1, {char, 1, $o}, default, default},
{bin_element, 1, {char, 1, $o}, default, default}
]}
However, v3_core would then traverse all of those
characters and convert it into an actual binary, as it
is a literal value.
This patch addresses this issue by moving the expansion
of string into chars to v3_core and only if a literal
value cannot not be built. This reduces the compilation
time of the file mentioned above to the values below:
Compiling "bar"
parse_module : 0.134 s 5327.6 kB
transform_module : 0.000 s 5327.6 kB
lint_module : 0.005 s 5327.8 kB
expand_module : 0.000 s 5328.7 kB
v3_core : 0.013 s 11.2 kB
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'raimo/stdlib/gen_statem-types-and-templates/ERL-172_ERL-187/OTP-13746' into maint
* raimo/stdlib/gen_statem-types-and-templates/ERL-172_ERL-187/OTP-13746:
Fix type and template errors from bugs.erlang.org: ERL-172 and ERL-187
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Conflicts:
OTP_VERSION
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* sverker/update_counter-deadlock/ERL-188/OTP-13731:
erts: Add test ets_SUITE:update_counter_table_growth
erts: Fix deadlock in ets:update_counter/4
erts: Optimize db_finalize_dbterm_hash
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* maint:
Fix return value spec for ets:match_object
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ets:match_object/1 and ets:match_object/3 return list of matches
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See also ERL-182.
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* bjorn/remove-gs/OTP-13703:
Remove the gs application
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The gs application ws deprecated in R15B01.
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Guard tests (e.g. is_list/1) are listed both in guard_bif/2 and
in new_type_test/2. That is a trap for anyone who wants to add
a new guard test. Let guard_bif/2 call new_type_test/2 so that
new guard tests only have to be added in one place.
While we are it, also sort the clauses in guard_bif/2 and
new_type/2.
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* siri/cuddle-master:
Add short sleep when killing slave nodes
[ct test] Do reload_config instead of get_config
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slave_SUITE:t_start_link somtimes fails when checking that a slave is
dead. This commit add a short sleep before the check to allow the node
to terminate.
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* bjorn/stdlib/doc:
Update STDLIB documentation
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Language cleaned up by the technical writers xsipewe and tmanevik
from Combitech. Proofreading and corrections by Björn Gustavsson
and Hans Bolinder.
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* bjorn/stdlib/deprecate-queue-lait/OTP-13658:
Deprecate queue:lait/1
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* hasse/dialyzer/improve_from_form/OTP-13547:
Update primary bootstrap
stdlib: Correct types and specs
dialyzer: Minor adjustments
dialyzer: Suppress unmatched_return for send/2
dialyzer: Improve the translation of forms to types
dialyzer: Use a cache when translating forms to types
dialyzer: Prepare erl_types:t_from_form() for a cache
dialyzer: Optimize erl_types:t_form_form()
dialyzer: Correct types
syntax_tools: Correct types
erts: Correct character repr in doc of the abstract format
stdlib: Correct types and specs
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It is possible that '...' is added later (OTP 20.0), but for now we
are not sure of all details.
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