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[CCBM] Extend the value domain to express multiple markers

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Summary: This diff extends the value domain to express multiple markers.

Reviewed By: ngorogiannis

Differential Revision: D22524864

fbshipit-source-id: b8e4af2eb
master
Sungkeun Cho 4 years ago committed by Facebook GitHub Bot
parent 9c33957d7e
commit 2e319e7a16
1 changed files with 67 additions and 50 deletions
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109
infer/src/checkers/ConfigChecksBetweenMarkers.ml
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@ -14,8 +14,6 @@ module Marker = struct
type t = MarkerId of IntLit.t | MarkerName of {marker_class: Pvar.t; marker_name: Fieldname.t}
[@@deriving compare]
let equal = [%compare.equal: t]
let pp f = function
| MarkerId i ->
IntLit.pp f i
@ -28,7 +26,13 @@ module Marker = struct
let of_name marker_class marker_name = MarkerName {marker_class; marker_name}
end
module MarkerLifted = AbstractDomain.Flat (Marker)
module Markers = struct
include AbstractDomain.FiniteSet (Marker)
let of_int_lit i = Marker.of_int_lit i |> singleton
let of_name marker_class marker_name = Marker.of_name marker_class marker_name |> singleton
end
module ConfigWithLocation = struct
type t = ConfigName.t * Location.t [@@deriving compare]
@ -63,49 +67,48 @@ module Val = struct
(* NOTE: Instead of syntactically distinguishing config and marker variables with heuristics, we
evalute the values for both of them if possible. Later, one value of them should be actually
used in analyzing config checking or marker start/end statments. *)
type t = {config: ConfigLifted.t; marker: MarkerLifted.t; locs: Locs.t}
type t = {config: ConfigLifted.t; markers: Markers.t; locs: Locs.t}
let pp f {config; marker; locs} =
F.fprintf f "@[@[config:@ %a@]@\n@[marker:@ %a@]@\n@[locs:@ %a@]@]" ConfigLifted.pp config
MarkerLifted.pp marker Locs.pp locs
let pp f {config; markers; locs} =
F.fprintf f "@[@[config:@ %a@]@\n@[markers:@ %a@]@\n@[locs:@ %a@]@]" ConfigLifted.pp config
Markers.pp markers Locs.pp locs
let leq ~lhs ~rhs =
ConfigLifted.leq ~lhs:lhs.config ~rhs:rhs.config
&& MarkerLifted.leq ~lhs:lhs.marker ~rhs:rhs.marker
&& Markers.leq ~lhs:lhs.markers ~rhs:rhs.markers
&& Locs.leq ~lhs:lhs.locs ~rhs:rhs.locs
let join x y =
{ config= ConfigLifted.join x.config y.config
; marker= MarkerLifted.join x.marker y.marker
; markers= Markers.join x.markers y.markers
; locs= Locs.join x.locs y.locs }
let widen ~prev ~next ~num_iters =
{ config= ConfigLifted.widen ~prev:prev.config ~next:next.config ~num_iters
; marker= MarkerLifted.widen ~prev:prev.marker ~next:next.marker ~num_iters
; markers= Markers.widen ~prev:prev.markers ~next:next.markers ~num_iters
; locs= Locs.widen ~prev:prev.locs ~next:next.locs ~num_iters }
let make ?(config = ConfigLifted.bottom) ?(marker = MarkerLifted.bottom) ?(locs = Locs.bottom) ()
=
{config; marker; locs}
let make ?(config = ConfigLifted.bottom) ?(markers = Markers.bottom) ?(locs = Locs.bottom) () =
{config; markers; locs}
let of_config config = make ~config:(ConfigLifted.v config) ()
let of_marker marker = make ~marker:(MarkerLifted.v marker) ()
let of_marker marker = make ~markers:(Markers.singleton marker) ()
let of_loc loc = make ~locs:(Locs.singleton loc) ()
let is_bottom {config; marker; locs} =
ConfigLifted.is_bottom config && MarkerLifted.is_bottom marker && Locs.is_bottom locs
let is_bottom {config; markers; locs} =
ConfigLifted.is_bottom config && Markers.is_bottom markers && Locs.is_bottom locs
let get_config_opt {config} = ConfigLifted.get config
let get_marker_opt {marker} = MarkerLifted.get marker
let get_markers {markers} = markers
let get_locs {locs} = locs
end
@ -117,7 +120,7 @@ module Mem = struct
let get_config_opt l mem = Option.bind (find_opt l mem) ~f:Val.get_config_opt
let get_marker_opt l mem = Option.bind (find_opt l mem) ~f:Val.get_marker_opt
let get_markers_opt l mem = Option.map (find_opt l mem) ~f:Val.get_markers
let load id pvar mem =
let from = Loc.of_pvar pvar in
@ -287,7 +290,11 @@ module StartedMarkers = struct
mapi report_on_marker markers
end
module EndedMarkers = AbstractDomain.InvertedSet (Marker)
module EndedMarkers = struct
include AbstractDomain.InvertedSet (Marker)
let add_markers markers x = Markers.fold add markers x
end
module Context = struct
(** We use opposite orders in collecting the sets of started and ended markers. This is because we
@ -321,16 +328,26 @@ module Context = struct
let init = {started_markers= StartedMarkers.bottom; ended_markers= EndedMarkers.top}
let call_marker_start marker location {started_markers; ended_markers} =
let call_marker_start markers location context =
let start_marker marker {started_markers; ended_markers} =
let trace = Trace.singleton (Trace.marker_start marker) location in
let trace_with_reported = {TraceWithReported.trace; reported= false} in
{ started_markers= StartedMarkers.add marker trace_with_reported started_markers
; ended_markers= EndedMarkers.remove marker ended_markers }
in
Markers.fold start_marker markers context
let call_marker_end marker {started_markers; ended_markers} =
{ started_markers= StartedMarkers.remove marker started_markers
; ended_markers= EndedMarkers.add marker ended_markers }
let call_marker_end markers {started_markers; ended_markers} =
let started_markers =
match Markers.is_singleton_or_more markers with
| Singleton marker ->
StartedMarkers.remove marker started_markers
| Empty | More ->
started_markers
in
let ended_markers = EndedMarkers.add_markers markers ended_markers in
{started_markers; ended_markers}
let call_config_check new_trace location ({started_markers} as context) =
@ -413,8 +430,8 @@ module Dom = struct
&& ConfigChecks.leq ~lhs:lhs.config_checks ~rhs:rhs.config_checks
let load_constant id config marker ({mem} as astate) =
{astate with mem= Mem.add id (Val.make ~config ~marker ()) mem}
let load_constant id config markers ({mem} as astate) =
{astate with mem= Mem.add id (Val.make ~config ~markers ()) mem}
let load_constant_config id config ({mem} as astate) =
@ -427,22 +444,23 @@ module Dom = struct
let store_constant e marker ({mem} as astate) = {astate with mem= Mem.store_constant e marker mem}
let call_marker_start marker location ({context} as astate) =
{astate with context= Context.call_marker_start marker location context}
let call_marker_start markers location ({context} as astate) =
{astate with context= Context.call_marker_start markers location context}
let call_marker_start_id id location ({mem} as astate) =
Mem.get_marker_opt (Loc.of_id id) mem
|> Option.value_map ~default:astate ~f:(fun marker -> call_marker_start marker location astate)
Mem.get_markers_opt (Loc.of_id id) mem
|> Option.value_map ~default:astate ~f:(fun markers ->
call_marker_start markers location astate )
let call_marker_end marker ({context} as astate) =
{astate with context= Context.call_marker_end marker context}
let call_marker_end markers ({context} as astate) =
{astate with context= Context.call_marker_end markers context}
let call_marker_end_id id ({mem} as astate) =
Mem.get_marker_opt (Loc.of_id id) mem
|> Option.value_map ~default:astate ~f:(fun marker -> call_marker_end marker astate)
Mem.get_markers_opt (Loc.of_id id) mem
|> Option.value_map ~default:astate ~f:(fun markers -> call_marker_end markers astate)
let call_config_check analysis_data config location ({context; config_checks} as astate) =
@ -521,10 +539,10 @@ module TransferFunctions = struct
List.find methods ~f:Procname.is_constructor
let get_marker_from_load {InterproceduralAnalysis.tenv; analyze_dependency} e mem =
let get_markers_from_load {InterproceduralAnalysis.tenv; analyze_dependency} e mem =
match e with
| Exp.Lfield (Lvar pvar, fn, _) when Pvar.is_global pvar ->
Some (Marker.of_name pvar fn)
Some (Markers.of_name pvar fn)
| Exp.Lfield (Var id, fn, typ) -> (
let open IOption.Let_syntax in
let* locs = Mem.find_opt (Loc.of_id id) mem in
@ -532,8 +550,8 @@ module TransferFunctions = struct
| Singleton this when Loc.is_this this ->
let* constructor = get_java_constructor tenv typ in
let* _, {Summary.mem= constructor_mem} = analyze_dependency constructor in
let* v = Mem.find_opt (Loc.of_this_field fn) constructor_mem in
Val.get_marker_opt v
let+ v = Mem.find_opt (Loc.of_this_field fn) constructor_mem in
Val.get_markers v
| _ ->
None )
| _ ->
@ -543,9 +561,9 @@ module TransferFunctions = struct
let get_marker_from_java_param e mem =
match e with
| Exp.Const (Cint marker) ->
Some (Marker.of_int_lit marker)
Some (Markers.of_int_lit marker)
| Exp.Var id ->
Mem.get_marker_opt (Loc.of_id id) mem
Mem.get_markers_opt (Loc.of_id id) mem
| _ ->
None
@ -560,11 +578,10 @@ module TransferFunctions = struct
Option.value_map (FbGKInteraction.get_config e) ~default:ConfigLifted.bottom
~f:ConfigLifted.v
in
let marker =
get_marker_from_load analysis_data e mem
|> Option.value_map ~default:MarkerLifted.bottom ~f:MarkerLifted.v
let markers =
get_markers_from_load analysis_data e mem |> Option.value ~default:Markers.bottom
in
Dom.load_constant (Loc.of_id id) config marker astate
Dom.load_constant (Loc.of_id id) config markers astate
| Call (_, Const (Cfun callee), (Lvar pvar, _) :: (e, _) :: _, _, _)
when FbGKInteraction.is_config_load callee ->
Option.value_map (FbGKInteraction.get_config e) ~default:astate ~f:(fun config ->
@ -576,12 +593,12 @@ module TransferFunctions = struct
| Call (_, Const (Cfun callee), _ :: (e, _) :: _, location, _)
when FbGKInteraction.is_marker_start_java tenv callee ->
get_marker_from_java_param e mem
|> Option.value_map ~default:astate ~f:(fun marker ->
Dom.call_marker_start marker location astate )
|> Option.value_map ~default:astate ~f:(fun markers ->
Dom.call_marker_start markers location astate )
| Call (_, Const (Cfun callee), _ :: (e, _) :: _, _, _)
when FbGKInteraction.is_marker_end_java tenv callee ->
get_marker_from_java_param e mem
|> Option.value_map ~default:astate ~f:(fun marker -> Dom.call_marker_end marker astate)
|> Option.value_map ~default:astate ~f:(fun markers -> Dom.call_marker_end markers astate)
| Call (_, Const (Cfun callee), (Var id, _) :: _, location, _)
when FbGKInteraction.is_marker_start_objc callee ->
Dom.call_marker_start_id id location astate

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