Merge branch 'richcarl/syntax_tools-remove-mnemosyne'

* richcarl/syntax_tools-remove-mnemosyne:
  Remove Mnemosyne rules support from EDoc
  Remove support for Mnemosyne rules
  Remove support for mnemosyne-style record field access

OTP-12511

1 files changed, 5 insertions, 25 deletions

diff --git a/lib/syntax_tools/src/erl_tidy.erl b/lib/syntax_tools/src/erl_tidy.erl
index 38e0c2099b..db7f0939a3 100644
--- a/lib/syntax_tools/src/erl_tidy.erl
+++ b/lib/syntax_tools/src/erl_tidy.erl
@@ -792,16 +792,11 @@ keep_form(Form, Used, Opts) ->
             N = erl_syntax_lib:analyze_function(Form),
             case sets:is_element(N, Used) of
                 false ->
-                    report_removed_def("function", N, Form, Opts),
-                    false;
-                true ->
-                    true
-            end;
-        rule ->
-            N = erl_syntax_lib:analyze_rule(Form),
-            case sets:is_element(N, Used) of
-                false ->
-                    report_removed_def("rule", N, Form, Opts),
+                    {F, A} = N,
+                    File = proplists:get_value(file, Opts, ""),
+                    report({File, erl_syntax:get_pos(Form),
+                            "removing unused function `~w/~w'."},
+                           [F, A], Opts),
                     false;
                 true ->
                     true
@@ -823,12 +818,6 @@ keep_form(Form, Used, Opts) ->
             true
     end.
 
-report_removed_def(Type, {N, A}, Form, Opts) ->
-    File = proplists:get_value(file, Opts, ""),
-    report({File, erl_syntax:get_pos(Form),
-	    "removing unused ~s `~w/~w'."},
-	   [Type, N, A], Opts).
-
 collect_functions(Forms) ->
     lists:foldl(
       fun (F, {Names, Defs}) ->
@@ -837,10 +826,6 @@ collect_functions(Forms) ->
                       N = erl_syntax_lib:analyze_function(F),
                       {sets:add_element(N, Names),
                        dict:store(N, {F, []}, Defs)};
-                  rule ->
-                      N = erl_syntax_lib:analyze_rule(F),
-                      {sets:add_element(N, Names),
-                       dict:store(N, {F, []}, Defs)};
                   _ ->
                       {Names, Defs}
               end
@@ -855,11 +840,6 @@ update_forms([F | Fs], Defs, Imports, Opts) ->
             {F1, Fs1} = dict:fetch(N, Defs),
             [F1 | lists:reverse(Fs1)] ++ update_forms(Fs, Defs, Imports,
                                                       Opts);
-        rule ->
-            N = erl_syntax_lib:analyze_rule(F),
-            {F1, Fs1} = dict:fetch(N, Defs),
-            [F1 | lists:reverse(Fs1)] ++ update_forms(Fs, Defs, Imports,
-                                                      Opts);
         attribute ->
             [update_attribute(F, Imports, Opts)
              | update_forms(Fs, Defs, Imports, Opts)];