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Suggested by Kostis.
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Messages like "Invalid type specification for function
para3:exp_adt/0. The success typing is () -> 3" now look like
"The specification for para3:exp_adt/0 has an opaque subtype
para3_adt:exp1(para3_adt:exp2()) which is violated by the success
typing () -> 3".
The old message did not give any clue as to what invalidated the
contract, namely the opaque subtype.
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Let it handle `dial_warning()` input as well, to match what `format_warning/2` expects.
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* Mention the option 'check_plt' among gui() options.
* No longer check a PLT twice when the analysis type is 'plt_check'.
* No longer raise a case_clause error when checking a PLT finds warnings.
Thanks to James Fish.
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The -dialyzer() attribute can be used for suppressing warnings in a
module by specifying functions or warning options. It can also be used
for requesting warnings in a module.
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The warnings about unknown types and functions are now returned
when calling Dialyzer from Erlang, in particular from an escript.
When calling Dialyzer from the command line the warnings about unknown
types and functions are output last as before; and when using the GUI
the warnings are displayed in a pop-up window, as before.
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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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R17 will come without support for 'gs' so the old gs-based GUI of dialyzer
has been removed.
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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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Dialyzer no longer outputs warnings for unused anonymous functions
("funs"). Warnings are still output for unused functions.
Funs in functions with -nowarn_unused_function attributes generated
warnings for unused functions. Unused list comprehensions also
generated warnings for unused funs.
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Enable warnings by default, add two options for suppressing them,
fix warning formatting and update testsuites.
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Applies to the specification of the return value of a function.
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* sa/dialyzer-fix-guards:
Fix warnings about guards containing not
Fix errors in the handling of 'and'/'or' guards
Cosmetic changes
OTP-9099
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This change adds a --fullpath option to Dialyzer, which makes the
warning messages contain the full path of the corresponding file.
Original patch submitted by Magnus Henoch (legoscia) on 15/9/2010
and cooked to death in the 'pu' branch all this time.
The patch was essentially correct and most of it has been used as
is, but there have been some changes to make the code slightly
prettier, avoid some code duplication, and add documentation to
dialyzer's doc files and to its help message.
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The wording of warnings about unsatisfiable guards that used
'not' was incorrect (the 'not' was not mentioned and it appeared
as "Guard test is_atom(atom()) can never succeed").
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This new feature is able to take multiple PLTs, merge them during the
start of the analysis, and work from there. This works provided that
the PLTs do not have a module with the same name appearing in more
than one PLT.
The PLTs are created in the usual way:
dialyzer --build_plt --output_plt PLT_1 FILES_TO_INCLUDE
...
dialyzer --build_plt --output_plt PLT_N FILES_TO_INCLUDE
and then can be used in either of the following ways:
dialyzer FILES_TO_ANALYZE --plts PLT_1 ... PLT_N
or:
dialyzer --plts PLT_1 ... PLT_N -- FILES_TO_ANALYZE
(Note the -- delimiter in the second case)
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Nested list comprehensions are translated into strongly connected
funs but dialyzer ignored this. This meant that self-recursive
analysis was normally executed for each fun and the whole fixpoint
took some time to calculate. This patch adds every fun found in
constraint generation to the SCC that is under analysis and then
solves the SCC as a whole.
Possible issues:
- The returned dict contains more entries than usual. This
triggered a bug in contract checking that is dealt with is
this patch as well (dialyzer_contracts.erl).
- As it's not easy to tell apart real fun SCCs from simple funs it
performance might be hampered in the simple funs case.
While doing these changes, also added and strengthened some specs.
In addition, incorporated a modified patch by Ahmed Omar that fixes
a bug in dialyzer_analysis_callgraph module that kept the files of
only one selected directory in dialyzer's GUI.
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Bumped version number and wrote RELEASE_NOTES.
Included all changes described in release notes.
Some spec-related changes to some files in lib/hipe/cerl.
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* ks/hipe:
dialyzer: Fix system_limit exception in race analysis
syntax_tools: Add types and specs for most exported functions
syntax_tools: Support the --enable-native-libs configure option
syntax_tools: Remove $Id$ annotations
dialyzer: New version for the R13B04 release
hipe: Miscellaneous additions
typer: New version for the R13B04 release
Fix a HiPE compiler bug evaluating an expression that throws system_limit
OTP-8460 ks/hipe
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