diff options
Diffstat (limited to 'lib/dialyzer')
| -rw-r--r-- | lib/dialyzer/doc/src/notes.xml | 66 | ||||
| -rw-r--r-- | lib/dialyzer/src/dialyzer_contracts.erl | 11 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/loopy.erl | 17 |
3 files changed, 24 insertions, 70 deletions
diff --git a/lib/dialyzer/doc/src/notes.xml b/lib/dialyzer/doc/src/notes.xml index 6e335ac3c1..d9af2cb4cd 100644 --- a/lib/dialyzer/doc/src/notes.xml +++ b/lib/dialyzer/doc/src/notes.xml @@ -32,72 +32,6 @@ <p>This document describes the changes made to the Dialyzer application.</p> -<section><title>Dialyzer 3.0</title> - - <section><title>Fixed Bugs and Malfunctions</title> - <list> - <item> - <p> Fix a bug in the translation of forms to types. </p> - <p> - Own Id: OTP-13520</p> - </item> - <item> - <p>Correct mispelling in Dialyzer's acronym definition. - </p> - <p> - Own Id: OTP-13544 Aux Id: PR-1007 </p> - </item> - <item> - <p>Dialyzer no longer crashes when there is an invalid - function call such as <c>42(7)</c> in a module being - analyzed. The compiler will now warn for invalid function - calls such as <c>X = 42, x(7)</c>. (ERL-138. Thanks to - Daniel Feltey for reporting this bug.)</p> - <p> - Own Id: OTP-13552</p> - </item> - </list> - </section> - - - <section><title>Improvements and New Features</title> - <list> - <item> - <p> The evaluation of SCCs in <c>dialyzer_typesig</c> is - optimized. </p> <p> Maps are used instead of Dicts to - further optimize the evalutation. </p> - <p> - Own Id: OTP-10349</p> - </item> - <item> - <p> Since Erlang/OTP R14A, when support for parameterized - modules was added, <c>module()</c> has included - <c>tuple()</c>, but that part is removed; the type - <c>module()</c> is now the same as <c>atom()</c>, as - documented in the Reference Manual. </p> - <p> - Own Id: OTP-13244</p> - </item> - <item> - <p> The type specification syntax for Maps is improved: - </p> <list> <item> <p> The association type <c>KeyType := - ValueType</c> denotes an association that must be - present. </p> </item> <item> <p> The shorthand <c>...</c> - stands for the association type <c>any() => any()</c>. - </p> </item> </list> <p> An incompatible change is that - <c>#{}</c> stands for the empty map. The type - <c>map()</c> (a map of any size) can be written as - <c>#{...}</c>. </p> - <p> - *** POTENTIAL INCOMPATIBILITY ***</p> - <p> - Own Id: OTP-13542 Aux Id: PR-1014 </p> - </item> - </list> - </section> - -</section> - <section><title>Dialyzer 2.9</title> <section><title>Fixed Bugs and Malfunctions</title> diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl index d1ffa07706..272ad10e90 100644 --- a/lib/dialyzer/src/dialyzer_contracts.erl +++ b/lib/dialyzer/src/dialyzer_contracts.erl @@ -591,10 +591,13 @@ remove_uses([{Var, Use}|ToRemove], Constrs0) -> remove_uses(_Var, _Use, []) -> []; remove_uses(Var, Use, [Constr|Constrs]) -> {V, Form} = Constr, - case erl_types:t_var_name(V) =:= Var of - true -> [{V, remove_use(Form, Use)}|Constrs]; - false -> [Constr|remove_uses(Var, Use, Constrs)] - end. + NewConstr = case erl_types:t_var_name(V) =:= Var of + true -> + {V, remove_use(Form, Use)}; + false -> + Constr + end, + [NewConstr|remove_uses(Var, Use, Constrs)]. remove_use({var, L, V}, V) -> {var, L, '_'}; remove_use(T, V) when is_tuple(T) -> diff --git a/lib/dialyzer/test/small_SUITE_data/src/loopy.erl b/lib/dialyzer/test/small_SUITE_data/src/loopy.erl new file mode 100644 index 0000000000..28125ec3d9 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/loopy.erl @@ -0,0 +1,17 @@ +%% ERL-157, OTP-13653. +%% Would cause Dialyzer to go into an infinite loop. + +-module(loopy). + +-export([loop/1]). + + +-spec loop(Args) -> ok when + Args :: [{Module, Args}], + Module :: module(), + Args :: any(). +loop([{Module, Args} | Rest]) -> + Module:init(Args), + loop(Rest); +loop([]) -> + ok. |