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author | Hans Bolinder <hasse@erlang.org> | 2017-09-13 14:58:40 +0200 |
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committer | Hans Bolinder <hasse@erlang.org> | 2017-09-14 12:21:07 +0200 |
commit | 8d1b7f9c65f14aea03d63dbdba86b0ef96804fc4 (patch) | |
tree | 8cc26492ddfad02028f965436c2c0857f516a5ed /lib/tools/src/xref_base.erl | |
parent | 15e3d354f56ea0b20ce3ab048c7574eed39b69b4 (diff) | |
download | erlang-8d1b7f9c65f14aea03d63dbdba86b0ef96804fc4.tar.gz |
tools: Add handling of the -on_load() attribute to Xref
Diffstat (limited to 'lib/tools/src/xref_base.erl')
-rw-r--r-- | lib/tools/src/xref_base.erl | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/lib/tools/src/xref_base.erl b/lib/tools/src/xref_base.erl index 3199b28acb..a28c6ee283 100644 --- a/lib/tools/src/xref_base.erl +++ b/lib/tools/src/xref_base.erl @@ -400,7 +400,9 @@ analysis(locals_not_used, functions) -> %% used (indirectly) from any export: "(domain EE + range EE) * L". %% But then we only get locals that make some calls, so we add %% locals that are not used at all: "L * (UU + XU - LU)". - "L * ((UU + XU - LU) + domain EE + range EE)"; + %% We also need to exclude functions with the -on_load() attribute: + %% (L - OL) is used rather than just L. + "(L - OL) * ((UU + XU - LU) + domain EE + range EE)"; analysis(exports_not_used, _) -> %% Local calls are not considered here. "X * UU" would do otherwise. "X - XU"; @@ -918,7 +920,7 @@ do_add_module(S, XMod, Unres, Data) -> {ok, Ms, Bad, NS}. prepare_module(_Mode = functions, XMod, Unres0, Data) -> - {DefAt0, LPreCAt0, XPreCAt0, LC0, XC0, X0, Attrs, Depr} = Data, + {DefAt0, LPreCAt0, XPreCAt0, LC0, XC0, X0, Attrs, Depr, OL0} = Data, %% Bad is a list of bad values of 'xref' attributes. {ALC0,AXC0,Bad0} = Attrs, FT = [tspec(func)], @@ -935,6 +937,7 @@ prepare_module(_Mode = functions, XMod, Unres0, Data) -> ALC1 = xref_utils:xset(ALC0, PCA), UnresCalls = xref_utils:xset(Unres0, PCA), Unres = domain(UnresCalls), + OL1 = xref_utils:xset(OL0, FT), DefinedFuns = domain(DefAt), {AXC, ALC, Bad1, LPreCAt2, XPreCAt2} = @@ -955,7 +958,7 @@ prepare_module(_Mode = functions, XMod, Unres0, Data) -> {DF1,DF_11,DF_21,DF_31,DBad} = depr_mod(Depr, X), {EE, ECallAt} = inter_graph(X, L, LC, XC, CallAt), {ok, {functions, XMod, [DefAt,L,X,LCallAt,XCallAt,CallAt,LC,XC,EE,ECallAt, - DF1,DF_11,DF_21,DF_31], NoCalls, Unres}, + OL1,DF1,DF_11,DF_21,DF_31], NoCalls, Unres}, DBad++Bad}; prepare_module(_Mode = modules, XMod, _Unres, Data) -> {X0, I0, Depr} = Data, @@ -967,7 +970,7 @@ prepare_module(_Mode = modules, XMod, _Unres, Data) -> finish_module({functions, XMod, List, NoCalls, Unres}, S) -> ok = check_module(XMod, S), [DefAt2,L2,X2,LCallAt2,XCallAt2,CallAt2,LC2,XC2,EE2,ECallAt2, - DF2,DF_12,DF_22,DF_32] = pack(List), + OL2,DF2,DF_12,DF_22,DF_32] = pack(List), LU = range(LC2), @@ -976,7 +979,7 @@ finish_module({functions, XMod, List, NoCalls, Unres}, S) -> M = XMod#xref_mod.name, MS = xref_utils:xset(M, atom), T = from_sets({MS,DefAt2,L2,X2,LCallAt2,XCallAt2,CallAt2, - LC2,XC2,LU,EE2,ECallAt2,Unres,LPredefined, + LC2,XC2,LU,EE2,ECallAt2,Unres,LPredefined,OL2, DF2,DF_12,DF_22,DF_32}), NoUnres = XMod#xref_mod.no_unresolved, @@ -1220,7 +1223,7 @@ do_set_up(S, VerboseOpt) -> %% If data has been supplied using add_module/9 (and that is the only %% sanctioned way), then DefAt, L, X, LCallAt, XCallAt, CallAt, XC, LC, -%% and LU are guaranteed to be functions (with all supplied +%% LU and OL are guaranteed to be functions (with all supplied %% modules as domain (disregarding unknown modules, that is, modules %% not supplied but hosting unknown functions)). %% As a consequence, V and E are also functions. V is defined for unknown @@ -1233,8 +1236,8 @@ do_set_up(S, VerboseOpt) -> do_set_up(S) when S#xref.mode =:= functions -> ModDictList = dict:to_list(S#xref.modules), [DefAt0, L, X0, LCallAt, XCallAt, CallAt, LC, XC, LU, - EE0, ECallAt, UC, LPredefined, - Mod_DF,Mod_DF_1,Mod_DF_2,Mod_DF_3] = make_families(ModDictList, 18), + EE0, ECallAt, UC, LPredefined, OL, + Mod_DF,Mod_DF_1,Mod_DF_2,Mod_DF_3] = make_families(ModDictList, 19), {XC_1, XU, XPredefined} = do_set_up_1(XC), LC_1 = user_family(union_of_family(LC)), @@ -1314,13 +1317,14 @@ do_set_up(S) when S#xref.mode =:= functions -> UC_1 = user_family(union_of_family(UC)), ?FORMAT("DefAt ~p~n", [DefAt]), - ?FORMAT("U=~p~nLib=~p~nB=~p~nLU=~p~nXU=~p~nUU=~p~n", [U,Lib,B,LU,XU,UU]), + ?FORMAT("U=~p~nLib=~p~nB=~p~nLU=~p~nXU=~p~nUU=~p~nOL=~p~n", + [U,Lib,B,LU,XU,UU,OL]), ?FORMAT("E_1=~p~nLC_1=~p~nXC_1=~p~n", [E_1,LC_1,XC_1]), ?FORMAT("EE=~p~nEE_1=~p~nECallAt=~p~n", [EE, EE_1, ECallAt]), ?FORMAT("DF=~p~nDF_1=~p~nDF_2=~p~nDF_3=~p~n", [DF, DF_1, DF_2, DF_3]), Vs = [{'L',L}, {'X',X},{'F',F},{'U',U},{'B',B},{'UU',UU}, - {'XU',XU},{'LU',LU},{'V',V},{v,V}, + {'XU',XU},{'LU',LU},{'V',V},{v,V},{'OL',OL}, {'LC',{LC,LC_1}},{'XC',{XC,XC_1}},{'E',{E,E_1}},{e,{E,E_1}}, {'EE',{EE,EE_1}},{'UC',{UC,UC_1}}, {'M',M},{'A',A},{'R',R}, @@ -1405,6 +1409,7 @@ var_type('U') -> {function, vertex}; var_type('UU') -> {function, vertex}; var_type('V') -> {function, vertex}; var_type('X') -> {function, vertex}; +var_type('OL') -> {function, vertex}; var_type('XU') -> {function, vertex}; var_type('DF') -> {function, vertex}; var_type('DF_1') -> {function, vertex}; |