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Added the capability to define macros in AL

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Reviewed By: dulmarod

Differential Revision: D4721779

fbshipit-source-id: 52da9f0
master
Dino Distefano 8 years ago committed by Facebook Github Bot
parent 5cfde325fd
commit 40e63aa42c
8 changed files with 145 additions and 32 deletions
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4
infer/lib/linter_rules/linters.al
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@ -153,7 +153,7 @@ DEFINE-CHECKER STRONG_DELEGATE_WARNING = {
DEFINE-CHECKER GLOBAL_VARIABLE_INITIALIZED_WITH_FUNCTION_OR_METHOD_CALL = {
LET is_global_var =
LET is_global_variable =
is_objc_extension() AND is_global_var() AND (NOT is_const_var());
LET makes_an_expensive_call =
@ -170,7 +170,7 @@ DEFINE-CHECKER GLOBAL_VARIABLE_INITIALIZED_WITH_FUNCTION_OR_METHOD_CALL = {
SET report_when =
WHEN
(is_global_var AND is_initialized_with_expensive_call)
(is_global_variable AND is_initialized_with_expensive_call)
HOLDS-IN-NODE VarDecl;
SET message =

106
infer/src/clang/cFrontend_errors.ml
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@ -137,49 +137,107 @@ let create_parsed_linters linters_def_file checkers : linter list =
{condition; issue_desc; def_file = Some linters_def_file} in
List.map ~f:do_one_checker checkers
let rec apply_substitution f sub =
let sub_param p = try
snd (List.find_exn sub ~f:(fun (a,_) -> String.equal p a))
with Not_found -> p in
let sub_list_param ps =
List.map ps ~f:sub_param in
let open CTL in
match f with
| True
| False -> f
| Atomic (name, ps) -> Atomic (name, sub_list_param ps)
| Not f1 -> Not (apply_substitution f1 sub)
| And (f1, f2) -> And (apply_substitution f1 sub, apply_substitution f2 sub)
| Or (f1, f2) -> Or (apply_substitution f1 sub, apply_substitution f2 sub)
| Implies (f1, f2) -> Implies (apply_substitution f1 sub, apply_substitution f2 sub)
| InNode (node_type_list, f1) ->
InNode (sub_list_param node_type_list, apply_substitution f1 sub)
| AU (f1, f2) -> AU (apply_substitution f1 sub, apply_substitution f2 sub)
| EU (trans, f1, f2) ->
EU (trans, apply_substitution f1 sub, apply_substitution f2 sub)
| EF (trans, f1) -> EF (trans, apply_substitution f1 sub)
| AF f1 -> AF (apply_substitution f1 sub)
| AG f1 -> AG (apply_substitution f1 sub)
| EX (trans, f1) -> EX (trans, apply_substitution f1 sub)
| AX f1 -> AX (apply_substitution f1 sub)
| EH (cl, f1) -> EH (sub_list_param cl, apply_substitution f1 sub)
| EG (trans, f1) -> EG (trans, apply_substitution f1 sub)
| ET (ntl, sw, f1) ->
ET (sub_list_param ntl, sw, apply_substitution f1 sub)
| ETX (ntl, sw, f1) ->
ETX (sub_list_param ntl, sw, apply_substitution f1 sub)
(* expands use of let defined formula id in checkers with their definition *)
let expand_checkers checkers =
let fail_with_circular_macro_definition name error_msg =
Logging.out
"[ERROR]: Macro '%s' has a circular definition.\n Cycle:\n%s"
name error_msg;
failwith ("Cannot expand....\n") in
let open CTL in
let open Ctl_parser_types in
let rec expand acc map =
let rec expand acc map error_msg =
match acc with
| True
| False -> acc
| Atomic (name, [p]) when String.equal formula_id_const p ->
Logging.out " -Expanding formula identifier '%s'\n" name;
(* constant case, macro with no params *)
let error_msg' = error_msg ^ " -Expanding formula identifier '" ^ name ^"'\n" in
(match Core.Std.String.Map.find map name with
| Some f1 -> expand f1 map
| Some (true, _, _) ->
fail_with_circular_macro_definition name error_msg'
| Some (false, params, f1) ->
let map' = Core.Std.String.Map.add map ~key:name ~data:(true, params, f1) in
expand f1 map' error_msg'
| None -> failwith
("[ERROR]: Formula identifier '" ^ name ^ "' is undefined. Cannot expand."));
| Atomic _ -> acc
| Not f1 -> Not (expand f1 map)
| And (f1, f2) -> And (expand f1 map, expand f2 map)
| Or (f1, f2) -> Or (expand f1 map, expand f2 map)
| Implies (f1, f2) -> Implies (expand f1 map, expand f2 map)
| InNode (node_type_list, f1) -> InNode (node_type_list, expand f1 map)
| AU (f1, f2) -> AU (expand f1 map, expand f2 map)
| EU (trans, f1, f2) -> EU (trans, expand f1 map, expand f2 map)
| EF (trans, f1) -> EF (trans, expand f1 map)
| AF f1 -> AF (expand f1 map)
| AG f1 -> AG (expand f1 map)
| EX (trans, f1) -> EX (trans, expand f1 map)
| AX f1 -> AX (expand f1 map)
| EH (cl, f1) -> EH (cl, expand f1 map)
| EG (trans, f1) -> EG (trans, expand f1 map)
| ET (tl, sw, f1) -> ET (tl, sw, expand f1 map)
| ETX (tl, sw, f1) -> ETX (tl, sw, expand f1 map) in
("[ERROR]: Formula identifier '" ^ name ^ "' is undefined. Cannot expand."))
| Atomic (name, actual_param) -> (* it may be a macro *)
let error_msg' = error_msg ^ " -Expanding formula identifier '" ^ name ^"'\n" in
(match Core.Std.String.Map.find map name with
| Some (true, _, _) ->
fail_with_circular_macro_definition name error_msg'
| Some (false, formal_params, f1) -> (* in this case it should be a defined macro *)
(match List.zip formal_params actual_param with
| Some sub ->
let f1_sub = apply_substitution f1 sub in
let map' = Core.Std.String.Map.add map
~key:name ~data:(true, formal_params, f1) in
expand f1_sub map' error_msg'
| None -> failwith ("[ERROR]: Formula identifier '" ^ name ^
"' is no called with the right number of parameters"))
| None -> acc) (* in this case it should be a predicate *)
| Not f1 -> Not (expand f1 map error_msg)
| And (f1, f2) -> And (expand f1 map error_msg, expand f2 map error_msg)
| Or (f1, f2) -> Or (expand f1 map error_msg, expand f2 map error_msg)
| Implies (f1, f2) -> Implies (expand f1 map error_msg, expand f2 map error_msg)
| InNode (node_type_list, f1) -> InNode (node_type_list, expand f1 map error_msg)
| AU (f1, f2) -> AU (expand f1 map error_msg, expand f2 map error_msg)
| EU (trans, f1, f2) -> EU (trans, expand f1 map error_msg, expand f2 map error_msg)
| EF (trans, f1) -> EF (trans, expand f1 map error_msg)
| AF f1 -> AF (expand f1 map error_msg)
| AG f1 -> AG (expand f1 map error_msg)
| EX (trans, f1) -> EX (trans, expand f1 map error_msg)
| AX f1 -> AX (expand f1 map error_msg)
| EH (cl, f1) -> EH (cl, expand f1 map error_msg)
| EG (trans, f1) -> EG (trans, expand f1 map error_msg)
| ET (tl, sw, f1) -> ET (tl, sw, expand f1 map error_msg)
| ETX (tl, sw, f1) -> ETX (tl, sw, expand f1 map error_msg) in
let expand_one_checker c =
Logging.out " +Start expanding %s\n" c.name;
let map : CTL.t Core.Std.String.Map.t = Core.Std.String.Map.empty in
(* Map a formula id to a triple (visited, parameters, definition).
Visited is used during the expansion phase to understand if the
formula was already expanded and, if yes we have a cyclic definifion *)
let map : (bool * string list * CTL.t) Core.Std.String.Map.t = Core.Std.String.Map.empty in
let map = List.fold ~f:(fun map' d -> match d with
| CLet (k,formula) -> Core.Std.Map.add map' ~key:k ~data:formula
| CLet (k, params, formula) -> Core.Std.Map.add map' ~key:k ~data:(false, params, formula)
| _ -> map') ~init:map c.definitions in
let exp_defs = List.fold ~f:(fun defs clause ->
match clause with
| CSet (report_when_const, phi) ->
Logging.out " -Expanding report_when\n";
CSet (report_when_const, expand phi map) :: defs
CSet (report_when_const, expand phi map "") :: defs
| cl -> cl :: defs) ~init:[] c.definitions in
{ c with definitions = exp_defs} in
let expanded_checkers = List.map ~f:expand_one_checker checkers in

4
infer/src/clang/cTL.ml
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@ -65,7 +65,7 @@ type t = (* A ctl formula *)
*)
type clause =
| CLet of string * t (* Let clause: let id = definifion; *)
| CLet of string * string list * t (* Let clause: let id = definifion; *)
| CSet of string * t (* Set clause: set id = definition *)
| CDesc of string * string (* Description clause eg: set message = "..." *)
@ -257,7 +257,7 @@ let print_checker c =
Logging.out "\nChecker name: %s\n" c.name;
List.iter ~f:(fun d -> (match d with
| CSet (clause_name, phi)
| CLet (clause_name, phi) ->
| CLet (clause_name, _, phi) ->
Logging.out " %s= \n %a\n\n"
clause_name Debug.pp_formula phi
| CDesc (clause_name, s) ->

2
infer/src/clang/cTL.mli
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@ -76,7 +76,7 @@ type t =
*)
type clause =
| CLet of string * t (* Let clause: let id = definifion; *)
| CLet of string * string list * t (* Let clause: let id = definifion; *)
| CSet of string * t (* Set clause: set id = definition *)
| CDesc of string * string (* Description clause eg: set message = "..." *)

7
infer/src/clang/ctl_parser.mly
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@ -82,7 +82,10 @@ clause:
| SET identifier ASSIGNMENT STRING
{ Logging.out "\tParsed desc clause\n"; CTL.CDesc ($2, $4) }
| LET identifier ASSIGNMENT formula
{ Logging.out "\tParsed let clause\n"; CTL.CLet ($2, $4) }
{ Logging.out "\tParsed let clause\n"; CTL.CLet ($2, [], $4) }
| LET identifier LEFT_PAREN params RIGHT_PAREN ASSIGNMENT formula
{ Logging.out "\tParsed let clause with formula identifier '%s(....)' \n" $2;
CTL.CLet($2, $4, $7) }
;
atomic_formula:
@ -93,7 +96,7 @@ atomic_formula:
;
formula_id:
| identifier { Logging.out "\tParsed formula identifier '%s' \n" $1;
| identifier { Logging.out "\tParsed formula identifier '%s' \n" $1;
CTL.Atomic($1, [formula_id_const]) }
;

7
infer/tests/codetoanalyze/objc/linters-for-test-only/issues.exp
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@ -1,4 +1,11 @@
codetoanalyze/objc/linters-for-test-only/subclassing.m, B_bar, 36, MACRO_TEST1, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, B_bar, 36, MACRO_TEST2, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, B_bar, 36, MACRO_TEST3, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, Linters_dummy_method, 26, MACRO_SUBCLASS, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, Linters_dummy_method, 26, SUBCLASSING_TEST_EXAMPLE, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, Linters_dummy_method, 41, MACRO_SUBCLASS, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, Linters_dummy_method, 41, SUBCLASSING_TEST_EXAMPLE, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, Linters_dummy_method, 47, MACRO_SUBCLASS, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, Linters_dummy_method, 47, SUBCLASSING_TEST_EXAMPLE, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, Linters_dummy_method, 53, MACRO_SUBCLASS, []
codetoanalyze/objc/linters-for-test-only/subclassing.m, Linters_dummy_method, 53, SUBCLASSING_TEST_EXAMPLE, []

45
infer/tests/codetoanalyze/objc/linters-for-test-only/linters_example.al
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@ -8,3 +8,48 @@ DEFINE-CHECKER SUBCLASSING_TEST_EXAMPLE = {
SET message = "This is subclassing A. Class A should not be subclassed.";
};
DEFINE-CHECKER MACRO_TEST1 = {
LET call_two_methods(x,y) = call_method(x) OR call_method(y);
SET report_when = call_two_methods(foo, bar);
SET message = "Error message here";
};
// Test reverse parameter of macro
DEFINE-CHECKER MACRO_TEST2 = {
LET my_macro_to_call_method_of_class(x,y) = call_class_method(y,x);
SET report_when = my_macro_to_call_method_of_class(foo, A);
SET message = "Error message here";
};
// Test macro call macro
DEFINE-CHECKER MACRO_TEST3 = {
LET my_macro_to_call_method_of_class(x,y) = call_class_method(y,x);
LET call_my_macro(t,v) = my_macro_to_call_method_of_class(t,v);
SET report_when = call_my_macro(foo, A);
SET message = "Error message here";
};
DEFINE-CHECKER MACRO_SUBCLASS = {
LET is_subclass_of(x) =
is_class(x) HOLDS-IN-SOME-SUPERCLASS-OF ObjCInterfaceDecl;
SET report_when = is_subclass_of(A);
SET message = "This is subclassing A. Class A should not be subclassed.";
};

2
infer/tests/codetoanalyze/objc/linters-for-test-only/subclassing.m
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@ -33,7 +33,7 @@
- (void)bar {
A* a = [[A alloc] init];
[a foo:5];
[a foo:5]; // Error: report MACRO_TEST1, MACRO_TEST2, MACRO_TEST3
}
@end

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