diff options
Diffstat (limited to 'lib/dialyzer/src/dialyzer_typesig.erl')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_typesig.erl | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/lib/dialyzer/src/dialyzer_typesig.erl b/lib/dialyzer/src/dialyzer_typesig.erl index 0b8b244cc9..5f0881bbcd 100644 --- a/lib/dialyzer/src/dialyzer_typesig.erl +++ b/lib/dialyzer/src/dialyzer_typesig.erl @@ -68,7 +68,7 @@ -type type_var() :: erl_types:erl_type(). %% actually: {'c','var',_,_} -record(fun_var, {'fun' :: fun((_) -> erl_types:erl_type()), deps :: [dep()], - origin :: integer()}). + origin :: integer() | 'undefined'}). -type constr_op() :: 'eq' | 'sub'. -type fvar_or_type() :: #fun_var{} | erl_types:erl_type(). @@ -83,9 +83,9 @@ -record(constraint_list, {type :: 'conj' | 'disj', list :: [constr()], deps :: [dep()], - masks :: [{dep(),[non_neg_integer()]}] | - {'d',dict:dict(dep(), [non_neg_integer()])}, - id :: {'list', dep()}}). + masks = [] :: [{dep(),[non_neg_integer()]}] | + {'d',dict:dict(dep(), [non_neg_integer()])}, + id :: {'list', dep()} | 'undefined'}). -type constraint_list() :: #constraint_list{}. @@ -104,7 +104,8 @@ -type dict_or_ets() :: {'d', prop_types()} | {'e', ets:tid()}. --record(state, {callgraph :: dialyzer_callgraph:callgraph(), +-record(state, {callgraph :: dialyzer_callgraph:callgraph() + | 'undefined', cs = [] :: [constr()], cmap = {'d', dict:new()} :: dict_or_ets(), fun_map = [] :: typesig_funmap(), @@ -116,7 +117,8 @@ cerl:c_fun()), next_label = 0 :: label(), self_rec :: 'false' | erl_types:erl_type(), - plt :: dialyzer_plt:plt(), + plt :: dialyzer_plt:plt() + | 'undefined', prop_types = {'d', dict:new()} :: dict_or_ets(), records = dict:new() :: types(), scc = [] :: [type_var()], @@ -1746,7 +1748,10 @@ minimize_state(#state{ fun_arities = FunArities, self_rec = SelfRec, prop_types = {e, ETSPropTypes}, - solvers = Solvers + solvers = Solvers, + callgraph = undefined, + plt = undefined, + mfas = [] }. dispose_state(#state{cmap = {e, ETSCMap}, @@ -2884,8 +2889,7 @@ mk_constraint(Lhs, Op, Rhs) -> case t_is_any(Lhs) orelse constraint_opnd_is_any(Rhs) of false -> Deps = find_constraint_deps([Lhs, Rhs]), - C0 = mk_constraint_1(Lhs, Op, Rhs), - C = C0#constraint{deps = Deps}, + C = mk_constraint_1(Lhs, Op, Rhs, Deps), case Deps =:= [] of true -> %% This constraint is constant. Solve it immediately. @@ -2903,8 +2907,7 @@ mk_constraint(Lhs, Op, Rhs) -> end. mk_constraint_any(Op) -> - C = mk_constraint_1(t_any(), Op, t_any()), - C#constraint{deps = []}. + mk_constraint_1(t_any(), Op, t_any(), []). %% the following function is used so that we do not call %% erl_types:t_is_any/1 with a term other than an erl_type() @@ -2952,12 +2955,12 @@ find_constraint_deps([Type|Tail], Acc) -> find_constraint_deps([], Acc) -> lists:flatten(Acc). -mk_constraint_1(Lhs, eq, Rhs) when Lhs < Rhs -> - #constraint{lhs = Lhs, op = eq, rhs = Rhs}; -mk_constraint_1(Lhs, eq, Rhs) -> - #constraint{lhs = Rhs, op = eq, rhs = Lhs}; -mk_constraint_1(Lhs, Op, Rhs) -> - #constraint{lhs = Lhs, op = Op, rhs = Rhs}. +mk_constraint_1(Lhs, eq, Rhs, Deps) when Lhs < Rhs -> + #constraint{lhs = Lhs, op = eq, rhs = Rhs, deps = Deps}; +mk_constraint_1(Lhs, eq, Rhs, Deps) -> + #constraint{lhs = Rhs, op = eq, rhs = Lhs, deps = Deps}; +mk_constraint_1(Lhs, Op, Rhs, Deps) -> + #constraint{lhs = Lhs, op = Op, rhs = Rhs, deps = Deps}. mk_constraints([Lhs|LhsTail], Op, [Rhs|RhsTail]) -> [mk_constraint(Lhs, Op, Rhs) | |