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Viewing changes to lib/dialyzer/test/small_SUITE_data/src/confusing_record_warning.erl

  • Committer: Package Import Robot
  • Author(s): Sergei Golovan
  • Date: 2011-12-15 19:20:10 UTC
  • mfrom: (1.1.18) (3.5.15 sid)
  • mto: (3.5.16 sid)
  • mto: This revision was merged to the branch mainline in revision 33.
  • Revision ID: package-import@ubuntu.com-20111215192010-jnxcfe3tbrpp0big
Tags: 1:15.b-dfsg-1
* New upstream release.
* Upload to experimental because this release breaks external drivers
  API along with ABI, so several applications are to be fixed.
* Removed SSL patch because the old SSL implementation is removed from
  the upstream distribution.
* Removed never used patch which added native code to erlang beam files.
* Removed the erlang-docbuilder binary package because the docbuilder
  application was dropped by upstream.
* Documented dropping ${erlang-docbuilder:Depends} substvar in
  erlang-depends(1) manpage.
* Made erlang-base and erlang-base-hipe provide virtual package
  erlang-abi-15.b (the number means the first erlang version, which
  provides current ABI).

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lib/dialyzer/test/small_SUITE_data/src/confusing_record_warning.erl
 
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%%---------------------------------------------------------------------
 
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%% A user complained that dialyzer produces a weird warning for the
 
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%% following program.  I explained to him that there is an implicit
 
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%% assumption that when a record is typed one cannot have types of
 
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%% the same size which are tagged by the record name whose elements
 
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%% have different types than the ones declared in the record.
 
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%%
 
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%% But the warning from dialyzer was weird nonetheless:
 
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%%    The pattern {'r', [_]} can never match the type any()
 
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%% We should clearly give some less confusing warning in this case.
 
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%%---------------------------------------------------------------------
 
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-module(confusing_record_warning).
 
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-export([test/1]).
 
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-record(r, {field :: binary}).
 
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test({r, [_]}) ->
 
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  #r{field = <<42>>}.