mirror of
https://github.com/correl/rebar.git
synced 2024-11-23 19:19:54 +00:00
Merge branch 'xref_20130130' of git://github.com/spilgames/rebar into spg-xref
Conflicts: src/rebar_xref.erl
This commit is contained in:
Dave Smith
commit
a5be40c969
2 changed files with 314 additions and 83 deletions
|
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@ -37,9 +37,6 @@
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|||
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-export([xref/2]).
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%% for internal use only
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-export([info/2]).
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%% ===================================================================
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%% Public API
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||||
%% ===================================================================
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|
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@ -60,27 +57,19 @@ xref(Config, _) ->
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true = code:add_path(rebar_utils:ebin_dir()),
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%% Get list of xref checks we want to run
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XrefChecks = rebar_config:get(Config, xref_checks,
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ConfXrefChecks = rebar_config:get(Config, xref_checks,
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[exports_not_used,
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undefined_function_calls]),
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%% Look for exports that are unused by anything
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ExportsNoWarn =
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case lists:member(exports_not_used, XrefChecks) of
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true ->
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check_exports_not_used();
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false ->
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true
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end,
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SupportedXrefs = [undefined_function_calls, undefined_functions,
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locals_not_used, exports_not_used,
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deprecated_function_calls, deprecated_functions],
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%% Look for calls to undefined functions
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UndefNoWarn =
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case lists:member(undefined_function_calls, XrefChecks) of
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true ->
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check_undefined_function_calls();
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false ->
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true
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end,
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XrefChecks = sets:to_list(sets:intersection(sets:from_list(SupportedXrefs),
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sets:from_list(ConfXrefChecks))),
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%% Run xref checks
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XrefNoWarn = xref_checks(XrefChecks),
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%% Run custom queries
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QueryChecks = rebar_config:get(Config, xref_queries, []),
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@ -92,7 +81,7 @@ xref(Config, _) ->
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%% Stop xref
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stopped = xref:stop(xref),
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case lists:member(false, [ExportsNoWarn, UndefNoWarn, QueryNoWarn]) of
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case lists:member(false, [XrefNoWarn, QueryNoWarn]) of
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true ->
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?FAIL;
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false ->
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@ -103,42 +92,16 @@ xref(Config, _) ->
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%% Internal functions
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%% ===================================================================
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info(help, xref) ->
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?CONSOLE(
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"Run cross reference analysis.~n"
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"~n"
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"Valid rebar.config options:~n"
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" ~p~n"
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" ~p~n"
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" ~p~n",
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[
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{xref_warnings, false},
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{xref_checks, [exports_not_used, undefined_function_calls]},
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{xref_queries,
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[{"(xc - uc) || (xu - x - b"
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" - (\"mod\":\".*foo\"/\"4\"))",[]}]}
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]).
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check_exports_not_used() ->
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{ok, UnusedExports0} = xref:analyze(xref, exports_not_used),
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UnusedExports = filter_away_ignored(UnusedExports0),
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%% Report all the unused functions
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display_mfas(UnusedExports, "is unused export (Xref)"),
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UnusedExports =:= [].
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check_undefined_function_calls() ->
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{ok, UndefinedCalls0} = xref:analyze(xref, undefined_function_calls),
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UndefinedCalls =
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[{find_mfa_source(Caller), format_fa(Caller), format_mfa(Target)}
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|| {Caller, Target} <- UndefinedCalls0],
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lists:foreach(
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fun({{Source, Line}, FunStr, Target}) ->
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?CONSOLE("~s:~w: Warning ~s calls undefined function ~s\n",
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[Source, Line, FunStr, Target])
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end, UndefinedCalls),
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UndefinedCalls =:= [].
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xref_checks(XrefChecks) ->
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XrefWarnCount = lists:foldl(
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fun(XrefCheck, Acc) ->
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{ok, Results} = xref:analyze(xref, XrefCheck),
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FilteredResults =filter_xref_results(XrefCheck, Results),
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lists:foreach(fun(Res) -> display_xrefresult(XrefCheck, Res) end, FilteredResults),
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Acc + length(FilteredResults)
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end,
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0, XrefChecks),
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XrefWarnCount =:= 0.
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check_query({Query, Value}) ->
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{ok, Answer} = xref:q(xref, Query),
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|
|
@ -166,41 +129,101 @@ code_path(Config) ->
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%%
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%% Ignore behaviour functions, and explicitly marked functions
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%%
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filter_away_ignored(UnusedExports) ->
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%% Functions can be ignored by using
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%% -ignore_xref([{F, A}, ...]).
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%% Functions can be ignored by using
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%% -ignore_xref([{F, A}, {M, F, A}...]).
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%% Setup a filter function that builds a list of behaviour callbacks and/or
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%% any functions marked to ignore. We then use this list to mask any
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%% functions marked as unused exports by xref
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F = fun(Mod) ->
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Attrs = Mod:module_info(attributes),
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Ignore = keyall(ignore_xref, Attrs),
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Callbacks = [B:behaviour_info(callbacks)
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|| B <- keyall(behaviour, Attrs)],
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[{Mod, F, A} || {F, A} <- Ignore ++ lists:flatten(Callbacks)]
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get_xref_ignorelist(Mod, XrefCheck) ->
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%% Get ignore_xref attribute and combine them in one list
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Attributes =
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try
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Mod:module_info(attributes)
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catch
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_Class:_Error -> []
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end,
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AttrIgnore =
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lists:flatten(
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lists:map(F, lists:usort([M || {M, _, _} <- UnusedExports]))),
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[X || X <- UnusedExports, not lists:member(X, AttrIgnore)].
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Ignore_xref = keyall(ignore_xref, Attributes),
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Behaviour_callbacks = case XrefCheck of
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exports_not_used -> [B:behaviour_info(callbacks) || B <- keyall(behaviour, Attributes)];
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_ -> []
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end,
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% And create a flat {M,F,A} list
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lists:foldl(
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fun(El,Acc) ->
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case El of
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{F, A} -> [{Mod,F,A} | Acc];
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{M, F, A} -> [{M,F,A} | Acc]
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end
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end, [],lists:flatten([Ignore_xref, Behaviour_callbacks])).
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keyall(Key, List) ->
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lists:flatmap(fun({K, L}) when Key =:= K -> L; (_) -> [] end, List).
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display_mfas([], _Message) ->
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ok;
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display_mfas([{_Mod, Fun, Args} = MFA | Rest], Message) ->
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{Source, Line} = find_mfa_source(MFA),
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?CONSOLE("~s:~w: Warning: function ~s/~w ~s\n",
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[Source, Line, Fun, Args, Message]),
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display_mfas(Rest, Message).
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parse_xref_result(XrefResult) ->
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case XrefResult of
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{_, MFAt} -> MFAt;
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MFAt -> MFAt
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end.
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filter_xref_results(XrefCheck, XrefResults) ->
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SearchModules = lists:usort(lists:map(
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fun(Res) ->
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case Res of
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{Mt,_Ft,_At} -> Mt;
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{{Ms,_Fs,_As},{_Mt,_Ft,_At}} -> Ms;
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_ -> undefined
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end
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end, XrefResults)),
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Ignores = lists:flatten([
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get_xref_ignorelist(Module,XrefCheck) || Module <- SearchModules]),
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[Result || Result <- XrefResults,
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not lists:member(parse_xref_result(Result),Ignores)].
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display_xrefresult(Type, XrefResult) ->
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{ Source, SMFA, TMFA } = case XrefResult of
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{MFASource, MFATarget} ->
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{format_mfa_source(MFASource), format_mfa(MFASource),
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format_mfa(MFATarget)};
|
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MFATarget ->
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{format_mfa_source(MFATarget), format_mfa(MFATarget),
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undefined}
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end,
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case Type of
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undefined_function_calls ->
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?CONSOLE("~sWarning: ~s calls undefined function ~s (Xref)\n",
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[Source, SMFA, TMFA]);
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undefined_functions ->
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?CONSOLE("~sWarning: ~s is undefined function (Xref)\n",
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[Source, SMFA]);
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locals_not_used ->
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?CONSOLE("~sWarning: ~s is unused local function (Xref)\n",
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[Source, SMFA]);
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exports_not_used ->
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?CONSOLE("~sWarning: ~s is unused export (Xref)\n",
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[Source, SMFA]);
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deprecated_function_calls ->
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?CONSOLE("~sWarning: ~s calls deprecated function ~s (Xref)\n",
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[Source, SMFA, TMFA]);
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deprecated_functions ->
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?CONSOLE("~sWarning: ~s is deprecated function (Xref)\n",
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[Source, SMFA]);
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Other ->
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?CONSOLE("~sWarning: ~s - ~s xref check: ~s (Xref)\n",
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[Source, SMFA, TMFA, Other])
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end.
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format_mfa({M, F, A}) ->
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?FMT("~s:~s/~w", [M, F, A]).
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format_fa({_M, F, A}) ->
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?FMT("~s/~w", [F, A]).
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format_mfa_source(MFA) ->
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case find_mfa_source(MFA) of
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{module_not_found, function_not_found} -> "";
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{Source, function_not_found} -> ?FMT("~s: ", [Source]);
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{Source, Line} -> ?FMT("~s:~w: ", [Source, Line])
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||||
end.
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|
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%%
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%% Extract an element from a tuple, or undefined if N > tuple size
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@ -220,7 +243,12 @@ safe_element(N, Tuple) ->
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%% being too paranoid here.
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%%
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find_mfa_source({M, F, A}) ->
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{M, Bin, _} = code:get_object_code(M),
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case code:get_object_code(M) of
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error -> {module_not_found, function_not_found};
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{M, Bin, _} -> find_function_source(M,F,A,Bin)
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end.
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find_function_source(M, F, A, Bin) ->
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AbstractCode = beam_lib:chunks(Bin, [abstract_code]),
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{ok, {M, [{abstract_code, {raw_abstract_v1, Code}}]}} = AbstractCode,
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%% Extract the original source filename from the abstract code
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|
|
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203
test/rebar_xref_eunit.erl
Normal file
203
test/rebar_xref_eunit.erl
Normal file
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|
@ -0,0 +1,203 @@
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|||
-module(rebar_xref_eunit).
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|
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-compile(export_all).
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-include_lib("eunit/include/eunit.hrl").
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-define(REBAR_SCRIPT, "../rebar").
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-define(TMP_DIR, "tmp_xref_eunit/").
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|
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xref_test_() ->
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{"Test the various xref warnings",
|
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setup, fun() -> setup_project(false), rebar("compile"), rebar("skip_deps=true xref") end,
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fun teardown/1,
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fun(RebarOut) ->
|
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[
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{"Undefined function", ?_assert(string:str(RebarOut,
|
||||
"myapp_somemod:notavailable/1 is undefined function") =/= 0)},
|
||||
{"Undefined function call", ?_assert(string:str(RebarOut,
|
||||
"myapp_othermod:somefunc/0 calls undefined function myapp_somemod:notavailable/1") =/= 0)},
|
||||
{"Deprecated function", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:fdeprecated/0 is deprecated function") =/= 0)},
|
||||
{"Deprecated function call", ?_assert(string:str(RebarOut,
|
||||
"myapp_othermod:somefunc/0 calls deprecated function myapp_mymod:fdeprecated/0") =/= 0)},
|
||||
{"Unused local", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:localfunc2/0 is unused local function") =/= 0)},
|
||||
{"Unused export 1", ?_assert(string:str(RebarOut,
|
||||
"myapp_behaviour1:behaviour_info/1 is unused export") =/= 0)},
|
||||
{"Unused export 2", ?_assert(string:str(RebarOut,
|
||||
"myapp_behaviour2:behaviour_info/1 is unused export") =/= 0)},
|
||||
{"Unused export 3", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:other2/1 is unused export") =/= 0)},
|
||||
{"Unused export 4", ?_assert(string:str(RebarOut,
|
||||
"myapp_othermod:somefunc/0 is unused export") =/= 0)},
|
||||
{"Suppressed behaviour export 1", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:bh1_a/1 is unused export") =:= 0)},
|
||||
{"Suppressed behaviour export 2", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:bh1_b/1 is unused export") =:= 0)},
|
||||
{"Suppressed behaviour export 3", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:bh2_a/1 is unused export") =:= 0)},
|
||||
{"Suppressed behaviour export 4", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:bh2_b/1 is unused export") =:= 0)}
|
||||
]
|
||||
end}.
|
||||
|
||||
xref_ignore_test_() ->
|
||||
{"Test the suppression of xref warnings",
|
||||
setup, fun() -> setup_project(ignore_xref), rebar("compile"), rebar("skip_deps=true xref") end,
|
||||
fun teardown/1,
|
||||
fun(RebarOut) ->
|
||||
[
|
||||
{"Undefined function can not be suppressed.", ?_assert(string:str(RebarOut,
|
||||
"myapp_somemod:notavailable/1 is undefined function") =/= 0)},
|
||||
{"Supppressed undefined function call", ?_assert(string:str(RebarOut,
|
||||
"myapp_othermod:somefunc/0 calls undefined function myapp_somemod:notavailable/1") =:= 0)},
|
||||
{"Supppressed deprecated function", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:fdeprecated/0 is deprecated function") =:= 0)},
|
||||
{"Supppressed deprecated function call", ?_assert(string:str(RebarOut,
|
||||
"myapp_othermod:somefunc/0 calls deprecated function myapp_mymod:fdeprecated/0") =:= 0)},
|
||||
{"Supppressed unused local", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:localfunc2/0 is unused local function") =:= 0)},
|
||||
{"Supppressed unused export 1", ?_assert(string:str(RebarOut,
|
||||
"myapp_behaviour1:behaviour_info/1 is unused export") =:= 0)},
|
||||
{"Supppressed unused export 2", ?_assert(string:str(RebarOut,
|
||||
"myapp_behaviour2:behaviour_info/1 is unused export") =:= 0)},
|
||||
{"Supppressed unused export 3", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:other2/1 is unused export") =:= 0)},
|
||||
{"Supppressed unused export 4", ?_assert(string:str(RebarOut,
|
||||
"myapp_othermod:somefunc/0 is unused export") =:= 0)},
|
||||
{"Suppressed behaviour export 1", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:bh1_a/1 is unused export") =:= 0)},
|
||||
{"Suppressed behaviour export 2", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:bh1_b/1 is unused export") =:= 0)},
|
||||
{"Suppressed behaviour export 3", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:bh2_a/1 is unused export") =:= 0)},
|
||||
{"Suppressed behaviour export 4", ?_assert(string:str(RebarOut,
|
||||
"myapp_mymod:bh2_b/1 is unused export") =:= 0)}
|
||||
]
|
||||
|
||||
end}.
|
||||
|
||||
|
||||
%% ====================================================================
|
||||
%% Setup and Teardown
|
||||
%% ====================================================================
|
||||
|
||||
-define(myapp_behaviour1,
|
||||
["-module(myapp_behaviour1).\n",
|
||||
"-export([behaviour_info/1]).\n"]).
|
||||
-define(myapp_behaviour1_body,
|
||||
["behaviour_info(callbacks) -> [{bh1_a,1},{bh1_b,1}];\n",
|
||||
"behaviour_info(_Other) -> undefined.\n"]).
|
||||
-define(myapp_behaviour1_ignorexref,
|
||||
["-ignore_xref({behaviour_info,1}).\n"]).
|
||||
|
||||
-define(myapp_behaviour2,
|
||||
["-module(myapp_behaviour2).\n",
|
||||
"-export([behaviour_info/1]).\n"]).
|
||||
-define(myapp_behaviour2_body,
|
||||
["behaviour_info(callbacks) -> [{bh2_a,1},{bh2_b,1}];\n",
|
||||
"behaviour_info(_Other) -> undefined.\n"]).
|
||||
-define(myapp_behaviour2_ignorexref,
|
||||
["-ignore_xref({behaviour_info,1}).\n"]).
|
||||
|
||||
-define(myapp_mymod,
|
||||
["-module(myapp_mymod).\n",
|
||||
"-export([bh1_a/1,bh1_b/1,bh2_a/1,bh2_b/1,other1/1,other2/1,fdeprecated/0]).\n",
|
||||
"-behaviour(myapp_behaviour1).\n", % 2 behaviours
|
||||
"-behaviour(myapp_behaviour2).\n",
|
||||
"-deprecated({fdeprecated,0}).\n"]). % deprecated function
|
||||
-define(myapp_mymod_body,
|
||||
["bh1_a(A) -> localfunc1(bh1_a, A).\n", % behaviour functions
|
||||
"bh1_b(A) -> localfunc1(bh1_b, A).\n",
|
||||
"bh2_a(A) -> localfunc1(bh2_a, A).\n",
|
||||
"bh2_b(A) -> localfunc1(bh2_b, A).\n",
|
||||
"other1(A) -> localfunc1(other1, A).\n", % regular exported functions
|
||||
"other2(A) -> localfunc1(other2, A).\n",
|
||||
"localfunc1(A, B) -> {A, B}.\n", % used local
|
||||
"localfunc2() -> ok.\n", % unused local
|
||||
"fdeprecated() -> ok.\n" % deprecated function
|
||||
]).
|
||||
-define(myapp_mymod_ignorexref,
|
||||
["-ignore_xref([{other2,1},{localfunc2,0},{fdeprecated,0}]).\n"]).
|
||||
|
||||
|
||||
|
||||
-define(myapp_othermod,
|
||||
["-module(myapp_othermod).\n",
|
||||
"-export([somefunc/0]).\n"]).
|
||||
-define(myapp_othermod_body,
|
||||
["somefunc() ->\n",
|
||||
" myapp_mymod:other1(arg),\n",
|
||||
" myapp_somemod:notavailable(arg),\n",
|
||||
" myapp_mymod:fdeprecated().\n"
|
||||
]).
|
||||
-define(myapp_othermod_ignorexref,
|
||||
["-ignore_xref([{myapp_somemod,notavailable,1},{somefunc,0}]).\n",
|
||||
"-ignore_xref({myapp_mymod,fdeprecated,0}).\n"]).
|
||||
|
||||
|
||||
-define(myapp_rebarconfig,
|
||||
["{erl_opts, [debug_info]}.\n",
|
||||
"{xref_checks, [deprecated_function_calls,deprecated_functions,\n",
|
||||
" undefined_function_calls,undefined_functions,\n",
|
||||
" exports_not_used,locals_not_used]}.\n"
|
||||
]).
|
||||
|
||||
setup_environment() ->
|
||||
ok = file:make_dir(?TMP_DIR),
|
||||
prepare_rebar_script(),
|
||||
ok = file:set_cwd(?TMP_DIR).
|
||||
|
||||
prepare_project() ->
|
||||
setup_environment(),
|
||||
rebar("create-app appid=myapp"),
|
||||
ok = file:make_dir("ebin").
|
||||
|
||||
setup_project(ignore_xref) ->
|
||||
prepare_project(),
|
||||
ok = file:write_file("src/myapp_behaviour1.erl", ?myapp_behaviour1 ++ ?myapp_behaviour1_ignorexref ++ ?myapp_behaviour1_body),
|
||||
ok = file:write_file("src/myapp_behaviour2.erl", ?myapp_behaviour2 ++ ?myapp_behaviour2_ignorexref++ ?myapp_behaviour2_body),
|
||||
ok = file:write_file("src/myapp_mymod.erl", ?myapp_mymod ++ ?myapp_mymod_ignorexref ++ ?myapp_mymod_body),
|
||||
ok = file:write_file("src/myapp_othermod.erl", ?myapp_othermod ++ ?myapp_othermod_ignorexref ++ ?myapp_othermod_body),
|
||||
ok = file:write_file("rebar.config", ?myapp_rebarconfig);
|
||||
|
||||
setup_project(_) ->
|
||||
prepare_project(),
|
||||
ok = file:write_file("src/myapp_behaviour1.erl", ?myapp_behaviour1 ++ ?myapp_behaviour1_body),
|
||||
ok = file:write_file("src/myapp_behaviour2.erl", ?myapp_behaviour2 ++ ?myapp_behaviour2_body),
|
||||
ok = file:write_file("src/myapp_mymod.erl", ?myapp_mymod ++ ?myapp_mymod_body),
|
||||
ok = file:write_file("src/myapp_othermod.erl", ?myapp_othermod ++ ?myapp_othermod_body),
|
||||
ok = file:write_file("rebar.config", ?myapp_rebarconfig).
|
||||
|
||||
|
||||
teardown(_) ->
|
||||
ok = file:set_cwd(".."),
|
||||
ok = remove_tmp_dir().
|
||||
|
||||
remove_tmp_dir() ->
|
||||
ok = rebar_file_utils:rm_rf(?TMP_DIR).
|
||||
|
||||
%% ====================================================================
|
||||
%% Helper Functions
|
||||
%% ====================================================================
|
||||
|
||||
prepare_rebar_script() ->
|
||||
Rebar = ?TMP_DIR ++ "rebar",
|
||||
{ok, _} = file:copy(?REBAR_SCRIPT, Rebar),
|
||||
case os:type() of
|
||||
{unix, _} ->
|
||||
[] = os:cmd("chmod u+x " ++ Rebar);
|
||||
{win32, _} ->
|
||||
{ok, _} = file:copy(?REBAR_SCRIPT ++ ".bat",
|
||||
?TMP_DIR ++ "rebar.bat")
|
||||
end.
|
||||
|
||||
rebar() ->
|
||||
rebar([]).
|
||||
|
||||
rebar(Args) when is_list(Args) ->
|
||||
Out = os:cmd(filename:nativename("./rebar") ++ " " ++ Args),
|
||||
%% ?debugMsg("**** Begin"), ?debugMsg(Out), ?debugMsg("**** End"),
|
||||
Out.
|
||||
Loading…
Reference in a new issue