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* bjorn/lc-warnings/OTP-11626:
dialyzer: Silence useless warnings about list comprehensions
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Dialyzer will warn if the value of list comprehension is
ignored by putting it in a sequence like this:
[SomeSideEffect(E) || E <- Es],
ok
To avoid a warning, you'll have to write:
_ = [SomeSideEffect(E) || E <- Es],
ok
Most of the time, this warning is merely annoying because it does
not point out any real errors.
Kostis Sagonas suggested that by suppressing the warning for
list comprehension that return a list of a simple type (e.g. ['ok']),
there would be no warning for code such as:
[io:format("~p\n", [E]) || E <- Es],
ok
but there would be still be a warning for:
[file:close(Fd) || Fd <- Fds],
ok
because an error condition is ignored.
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It is now OK to inspect and modify the internals of opaque types within
the scope of the module.
The contracts are used for decorating types with opaqueness when it is
harmless to do so. The opaqueness is propagated by the typesig module
and also by the dataflow module.
A lot of details have been fixed or updated. In particular the modules
erl_types and erl_bif_types have been modified extensively.
The version in vsn.mk has been updated to 2.7. The reason is a
modification of #opaque{} in erl_types.
Dialyzer seems to be about five percent slower than it used to be.
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This adds optional names to fun expressions. A named fun expression
is parsed as a tuple `{named_fun,Loc,Name,Clauses}` in erl_parse.
If a fun expression has a name, it must be present and be the same in
every of its clauses. The function name shadows the environment of the
expression shadowing the environment and it is shadowed by the
environment of the clauses' arguments. An unused function name triggers
a warning unless it is prefixed by _, just as every variable.
Variable _ is allowed as a function name.
It is not an error to put a named function in a record field default
value.
When transforming to Core Erlang, the named fun Fun is changed into
the following expression:
letrec 'Fun'/Arity =
fun (Args) ->
let <Fun> = 'Fun'/Arity
in Case
in 'Fun'/Arity
where Args is the list of arguments of 'Fun'/Arity and Case the
Core Erlang expression corresponding to the clauses of Fun.
This transformation allows us to entirely skip any k_var to k_local
transformation in the fun's clauses bodies.
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* fenollp/treewide_remove_unexpected_0xff/OTP-11323:
Remove ^L characters hidden randomly in the code. Not those used in text files as delimiters.
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* kostis/dialyzer_R16B02_fixes/OTP-11374:
Fix crash when using remote types in the tail of list types
Adopt a convention about unknown modules
No reason for calls to unknown modules
Use the modern version of is_subtype
Adopt a convention about unknown modules
Fix a comment
Add some more comments about what the test does
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Hans Bolider reported a dialyzer crash when using a remote type in
the tail position of a maybe_improper_list() declaration. A test
was created (by extending an existing module of the testsuite)
and erl_types was modified to expand the remote type and not pass
it unexpanded to subsequent phases in the processing.
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This changed the lines so the results now differ.
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files as delimiters.
While working on a tool that processes Erlang code and testing it against this repo,
I found out about those little sneaky 0xff. I thought it may be of help to other
people build such tools to remove non-conforming-to-standard characters.
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This fixes the usage of the httpd configuration option 'script_timeout',
which got ignored before.
The documentation states that the value is in seconds, which was true
when using the Apache like configuration file, but not true when using
the proplist style configuration.
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It makes no sense to be able to do `<<...,Rest/binary>> <= ...` in a
comprehension. The related Dialyzer test is removed.
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Conflicts:
bootstrap/lib/stdlib/ebin/beam_lib.beam
lib/public_key/test/erl_make_certs.erl
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To ensure that 'master' compiles when we merge 'maint' to it,
regardless of which encoding is default in 'master', all source
files with non-ascii characters *must* have the encoding specified.
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Dialyzer was constraining bitstring data used in the construction of other
bitstring values too much. These constraints have now been relaxed.
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The function name can give information that the line number doesn't,
for example when using a parse transform that creates new functions.
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* hb/file_name_type/OTP-10852:
Introduce new type file:name_all()
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* pan/unicode_printable_ranges:
Adapt stdlib tests to ~tp detecting latin1 binaries
Update primary bootstrap
Make wx debugger use +pc flag when applicable
Correct misspelled comments and space at lin ends
Make ~tp output latin1 binaries as strings if possible
Leave the +pc handling to io and io_lib_pretty
Remove newly introduced warning in erlexec.c
Make shell_SUITE:otp_10302 use +pc unicode when needed
Fix io_proto_SUITE to handle the new io_lib_pretty:print
Add testcase for +pc and io:printable_range/0
Make printing of UTF-8 in binaries behave like lists.
Document +pc flag and io:printable_range/0
Add usage of and spec for io:printable_range/0
Add +pc {latin1|unicode} switch and io:printable_range/0
Fix some Unicode issues
OTP-18084
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Also let the Erlang shell use the new function io:printable_range().
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The recommended type for filenames is a list of characters (which
may be Unicode characters greater than 255). Change the
file:filename() to reflect that.
For the filename module we still need a type that can be either
a string or a binary, so we need to introduce the type
file:filename_all().
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* fredrik/dialyzer/fix-tc-data:
Testcase expecting newline
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The code related to the introduction of unicode_string() and
unicode_char() has been removed. The types char() and string() have
been extended to include Unicode characters.
In fact char() was changed some time ago; this commit is about
cleaning up the documentation and introduce better names for some
functions.
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* sa/dialyzer-unknown-arity-funs/OTP-10772:
Update one more unused funs result as per ffe582b
Remove pubsub and comm_layer tests from testsuite
Properly support functions with arbitrary arity in type specs.
Conflicts:
lib/hipe/cerl/erl_types.erl
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These tests recently broke because of the deprecation of the package system.
Furthermore, they included copyrighted code.
Finally they were not minimized not targeted to any specific feature and had no
warnings being reported.
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Dialyzer now understands the "fun(...)" syntax in type specs.
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* sa/dialyzer-list-spec/OTP-10740:
Report spec discrepancy on mismatching lists
Properly support functions with arbitrary arity in type specs.
Conflicts:
lib/dialyzer/test/small_SUITE_data/results/empty_list_infimum
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* sa/dialyzer-list-spec/OTP-10740:
Report spec discrepancy on mismatching lists
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* sa/dialyzer-record-field-type/OTP-10681:
Fix precision of record creation violation warnings
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Packages were removed in 34d865a7dfdb33ee1e69fc28885f68baeeadfd98.
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