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Literal maps could cause dialyzer to crash when pretty printing the results.
Reported-by: Chris McGrath <[email protected]>
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In commit f667931e2905797ffab63e224e56eaf07f77178a the core format changed
for map pairs. Let dialyzer and hipe pretty printing of maps also adhere to
those changes.
An Erlang map update, M#{foo := 1, bar => 2} will now be printed as:
~{ 'foo' := 1, 'bar' => 2 | M }~
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* lucafavatella/dialyzer-fun-literal-arity:
Teach Dialyzer arity of funs with literal arity
OTP-13068
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Prior to this commit, the fact that parameters of opaque types are
expanded differently depending on the current values of limits used
during expansion, caused problems later when the types of parameters
are used for determining if opaque types are comparable.
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Fix the range type of erlang:abs/1.
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Opaque recursive parameters are expanded faster.
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Expand parameters when needed only.
The opaqueness is removed from types expanded to any().
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Add more information about the caller of t_from_form(). Instead of
just the module, also provide name of the type, spec, or record where
the type form resides.
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Thanks to ILYA Khlopotov for pointing the bug out.
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The example is provided by James Fish in
http://erlang.org/pipermail/erlang-questions/2014-December/082204.html.
Note that warnings with text such as "the _ variable breaks
opaqueness" are still possible.
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Re-insert logic for `erlang:make_fun/3` in `erl_bif_types`. It had
been removed in bd941f5 while type spec-ing `erlang.erl`. Type spec in
`erlang.erl` cannot express arity of returned fun based on value of
argument hence re-introducing logic in `erl_bif_types`.
Re-definition of logic in `erl_bif_types` follows approach in 9d870a0.
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The test t_is_none() does not check for opaque types (and this is most
likely how it should be), why t_opaque() should never be called with
none().
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Comparing two operands for (in)equality is allowed if both operands
are of the same unknown opaque type. Since OTP 17, there is a warning
if the types of the operands have nothing in common (this cannot
happen before OTP 17). However, the warning says there is a test
between opaque types, which is wrong. The warning now states that the
comparison cannot evaluate to 'true', which is more consistent.
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In OTP 17 it is possible to mix types such as dict:dict() and
dict:dict(_, _) outside of the dict module (and similarly for some
other opaque types in STDLIB), but the results are unfortunately
possibly invalid warnings in users' code. In OTP 18 parameterized
opaque types with the same name but with different number of
parameters are no longer compatible when seen from outside of the
module where the types are declared.
The types in STDLIB have been updated accordingly; for instance
-opaque dict() :: dict(_, _).
has been replaced by
-type dict() :: dict(_, _).
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The check that a modified type of a field is a subtype of the declared
type has been moved outside of the expansion of forms to avoid loops.
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* kostis/cerl_pmatch:
Allow use of complete interface of cerl_pmatch module
OTP-12794
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The macro HIPE_SYSTEM_CRC used to contain a hidden cookie from the VM
that generated hipe_literals.hrl. This means that BEAM files containing
that macro would be tied to a particular version of the VM.
Change hipe_bifs:system_crc such that it doesn't require a hidden cookie
to return the desired value.
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The cerl_pmatch module performs pattern matching compilation at the
level of Core Erlang. Functions that were not needed by the HiPE
compiler were ifdef-ed out. However, these functions may come handy
to other users; in particular a new testing tool currently under
development needs access to these functions.
While at it, added specs for these exported functions and also
strengthened the spec of another one.
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An opaque type ?opaque(_) was put in a list where #opaque{} was
expected.
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In particular fix handling of records.
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The hipe_bifs:make_native_stub/2 and hipe_bifs:get_emu_address/1
BIFs were originally used by hipe_unified_loader.erl, but the
code been obsolete and disabled for ages.
Remove the BIFs and all references to them.
In hipe_unified_loader.erl, remove the no-op emu_make_stubs/1
function.
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* maint:
dialyzer, hipe: Fix a bug concerning is_record/2,3
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Also fixed some cases where Dialyzer could crash due to reaching
system limits.
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* maint:
hipe: Correct pretty-printing of bitstrings
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* maint:
[dialyzer] Correct a doc bug introduced in 0b041238
[dialyzer] Use the option 'dialyzer' to control the compiler
[dialyzer] Fix handling of literal records
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This ticket is about records in Erlang code, and when to check the
fields against the (optional) types given when defining records.
Dialyzer operates on the Erlang Core format, where there are no trace
of records. The fix implemented is a Real Hack:
Given the new option 'dialyzer' erl_expand_records marks the line
number of records in a way that is undone by v3_core, which in turn
inserts annotations that can be recognized by Dialyzer.
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* egil/fix-maps-pretty-layout/OTP-11947:
dialyzer: Add Maps type mismatch test
hipe,compiler: Fix Map literals pretty printing
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* maint:
hipe: fix a bug concerning typed record fields
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* maint:
hipe: fix a bug concerning typed record fields
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When checking typed record fields Dialyzer failed to handle
types containing remote types.
Thanks to Erik Søe Sørensen for reporting this bug.
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The pre-defined types array(), dict(), digraph(), gb_set(), gb_tree(),
queue(), set(), and tid() have been removed.
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product/_, union/_, range/2 as well as tuple/N (N > 0), map/N (N > 0),
atom/1, integer/1, binary/2, record/_, and 'fun'/_ can now be used as
type names.
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Dialyzer sometimes output warnings like
Attempt to test for inequality between a term of type 'false' and a
term of opaque type 'false' | gb_set()
The reason was that erl_types:t_inf/3 when called from
erl_types:t_find_unknown_opaque() did not return 'false' but found the
mismatch. It should not return the mismatch unless the intersection is
empty ('none').
Thanks to Shayan Pooya [[email protected]] for pointing out the bug.
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Namely, extend the HiPE tagging scheme info, properly handle the translation
of the (is_)map type test to Icode and RTL and support handling of the map()
type in the type system.
While at it, also performed some clean up of things that needed small fixes.
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* aronisstav/hipe/opaque_fix:
Don't 'opaque-decorate' a success typing using an incompatible spec
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Without this patch Dialyzer crashes when analyzing the supplemented test case.
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Remove debug printouts.
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* kostis/hipe-rc2-patch:
Cleanup and make sure warnings are treated as errors
Add specs for exported functions (to shut off a warning) and types in some record fields
Introduce and use a hipe_icode:icode() type
Substitude uses of lists:reverse(L1) ++ L2 with lists:reverse(L1, L2)
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