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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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Dialyzer so far only supported letrecs at the top-level
and comprehension-like letrecs (i.e. that were directly applied)
in their body.
This commit address this issue by storing in the callgraph
bound letrec labels pointing to their functions. This information
is then used by the dataflow to properly lookup recursive
definitions.
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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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* nox/illegal-bitstring-gen-pattern/OTP-11186:
Bootstrap added
Simplify v3_core's translation of bit string generators
Forbid unsized fields in patterns of binary generators
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The R16B01 release
Conflicts:
lib/sasl/vsn.mk
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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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* maint:
[dialyzer] Fix a bug concerning the --gui and --wx options
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A bug that made it impossible to do any analyses from the GUI has been
fixed. The bug was introduced in dialyzer-2.5.2.
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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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* sa/dialyzer-bitstring-fixes/OTP-11027:
Minor refactorings
Fix minor error in natively compiled module list
Fix notification for duplicate modules
Fix an error in the type inference of bitstring data
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Even though dialyzer_typesig is the module doing most of the work, compiling it
to native code twice will not make it faster than the rest. :-)
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Dialyzer fails when asked to analyze multiple modules with the same name, but
the error message was erroneous. With this patch Dialyzer generates a correct
error message.
Bug reported and patch submitted by Maxim Treskin.
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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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To reproduce, create an empty file "foo.erl" and run dialyzer on it.
Results without this patch:
$ dialyzer --src /tmp/foo.erl
Checking whether the PLT /Users/magnus/.dialyzer_r16_plt is up-to-date... yes
Proceeding with analysis...
dialyzer: Analysis failed with error:
Could not scan the following file(s): [{"/tmp/foo.erl",
["/tmp/foo.erl:1: no module definition\n"]}]
Last messages in the log cache:
Reading files and computing callgraph...
Results with this patch:
$ dialyzer --src /tmp/foo.erl
Checking whether the PLT /Users/magnus/.dialyzer_r16_plt is up-to-date... yes
Proceeding with analysis...
dialyzer: Analysis failed with error:
Could not scan the following file(s):
/tmp/foo.erl:1: no module definition
Last messages in the log cache:
Reading files and computing callgraph...
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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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* ks/dialyzer-R16B-final-fixes/OTP-10865:
Native code compilation changes
Code simplification
Simplify a case construct using inequality
Simplify a case construct using a boolean operator
Code simplifications + take out obsolete note
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Add more files to be compiled to native code and
do the native code compilation in parallel if there are enough cores.
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Also let the Erlang shell use the new function io:printable_range().
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