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2014-08-21dialyzer, hipe: Fix a bug concerning is_record/2,3Hans Bolinder
Also fixed some cases where Dialyzer could crash due to reaching system limits.
2014-06-17[dialyzer] Fix handling of literal recordsHans Bolinder
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.
2014-03-20Introduce a new warning option, 'no_unknown'Hans Bolinder
Not (yet) documented.
2014-03-17Remove "coding: utf-8" from test filesSiri Hansen
UTF-8 is now the default encoding and should no longer be specified. These have probably been merged from maint earlier and the coding statement was missed. lib/dialyzer/test/opaque_SUITE_data/src/modules/opaque_erl_scan.erl lib/diameter/test/diameter_codec_test.erl lib/ssh/test/ssh_unicode_SUITE.erl
2014-02-23Deprecate pre-defined built-in typesHans Bolinder
The types array(), dict(), digraph(), gb_set(), gb_tree(), queue(), set(), and tid() have been deprecated. They will be removed in OTP 18.0. Instead the types array:array(), dict:dict(), digraph:graph(), gb_set:set(), gb_tree:tree(), queue:queue(), sets:set(), and ets:tid() can be used. (Note: it has always been necessary to use ets:tid().) It is allowed in OTP 17.0 to locally re-define the types array(), dict(), and so on. New types array:array/1, dict:dict/2, gb_sets:set/1, gb_trees:tree/2, queue:queue/1, and sets:set/1 have been added.
2014-01-21[dialyzer] Re-work the handling of opaque typesHans Bolinder
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.
2012-06-01Bug fixes and improvements of dialyzer_typesigHans Bolinder
1. Sometimes the solver forgot that a list had entered the error state. The bug has been fixed by storing the atom 'error' in MapDict. An example where the bug occurred is io_lib_pretty:printable_bin(). The returned spec was weaker than it should have been, but the fix-point loop hid the bug (in this case). 2. lists:partition() has been substituted for lists:splitwith() in enumerate_constraints(). This fix together with 3. solves a problem with long execution times for deeply nested fun:s. An example which is now much faster is lib/compiler/test/lc_SUITE:deeply_nested/1 (included as dialyzer/test/small_SUITE_data/src/deep_lc.erl). 3. The calculation of components in enumerate_constraints() has been simplified and optimized. The important thing here is that _all_ of the simple constraints have been saturated before entering the complex part. 4. The pretty printing of constraints has been improved.
2012-02-22Allow t_opaque_structure to handle multiple opaque typesStavros Aronis
2011-10-14Change category of 'might also return' warningsStavros Aronis
Dialyzer emits warnings like the following "The specification for _ states that the function might also return _ but the inferred return is _", which are actually underspecifications and not wrong type specifications. This patch makes sure that they are filed under the appropriate category.
2011-05-04Add opaque/ewgi,ewgi2Stavros Aronis
2011-05-04Add opaque/schuett_bugStavros Aronis
2011-05-04Update opaque/zoltan_kis* sourcesStavros Aronis
2011-05-04Rename suite data directoriesStavros Aronis