[linters] Adding a new type of procname that is used for lint bugs that are not in any method

Reviewed By: cristianoc

Differential Revision: D3913535

fbshipit-source-id: cb8f840

infer/src/IR/Procname.re

@@ -56,7 +56,7 @@ type block = string;
 
 
 /** Type of procedure names. */
-type t = | Java of java | C of c | ObjC_Cpp of objc_cpp | Block of block;
+type t = | Java of java | C of c | ObjC_Cpp of objc_cpp | Block of block | Linters_dummy_method;
 
 
 /** Level of verbosity of some to_string functions. */
@@ -227,7 +227,8 @@ let replace_class t new_class =>
   | Java j => Java {...j, class_name: split_classname new_class}
   | ObjC_Cpp osig => ObjC_Cpp {...osig, class_name: new_class}
   | C _
-  | Block _ => t
+  | Block _
+  | Linters_dummy_method => t
   };
 
 
@@ -269,7 +270,8 @@ let get_method =
   | ObjC_Cpp name => name.method_name
   | C (name, _) => name
   | Block name => name
-  | Java j => j.method_name;
+  | Java j => j.method_name
+  | Linters_dummy_method => "Linters_dummy_method";
 
 
 /** Return the language of the procedure. */
@@ -278,6 +280,7 @@ let get_language =
   | ObjC_Cpp _ => Config.Clang
   | C _ => Config.Clang
   | Block _ => Config.Clang
+  | Linters_dummy_method => Config.Clang
   | Java _ => Config.Java;
 
 
@@ -535,6 +538,7 @@ let to_unique_id pn =>
   | C (c1, c2) => to_readable_string (c1, c2) true
   | ObjC_Cpp osig => c_method_to_string osig Verbose
   | Block name => name
+  | Linters_dummy_method => "Linters_dummy_method"
   };
 
 
@@ -545,6 +549,7 @@ let to_string p =>
   | C (c1, c2) => to_readable_string (c1, c2) false
   | ObjC_Cpp osig => c_method_to_string osig Non_verbose
   | Block name => name
+  | Linters_dummy_method => to_unique_id p
   };
 
 
@@ -555,6 +560,7 @@ let to_simplified_string withclass::withclass=false p =>
   | C (c1, c2) => to_readable_string (c1, c2) false ^ "()"
   | ObjC_Cpp osig => c_method_to_string osig Simple
   | Block _ => "block"
+  | Linters_dummy_method => to_unique_id p
   };
 
 
@@ -587,6 +593,12 @@ let compare pn1 pn2 =>
       Block s2
     ) =>
     string_compare s1 s2
+  | (
+      Linters_dummy_method, /* Compare fake methods used in linters */
+      Linters_dummy_method
+    ) => 0
+  | (Linters_dummy_method, _) => (-1)
+  | (_, Linters_dummy_method) => 1
   | (Block _, _) => (-1)
   | (_, Block _) => 1
   | (ObjC_Cpp osig1, ObjC_Cpp osig2) => c_meth_sig_compare osig1 osig2

infer/src/IR/Procname.rei

@@ -32,7 +32,7 @@ type block;
 
 
 /** Type of procedure names. */
-type t = | Java of java | C of c | ObjC_Cpp of objc_cpp | Block of block;
+type t = | Java of java | C of c | ObjC_Cpp of objc_cpp | Block of block | Linters_dummy_method;
 
 type java_type = (option string, string);
 

infer/src/checkers/BoundedCallTree.ml

@@ -124,7 +124,7 @@ module TransferFunctions (CFG : ProcCfg.S) = struct
                   frame.Stacktrace.class_str
                   (Procname.objc_cpp_get_class_name objc_cpp_prod)
             | Procname.C _ -> true (* Needed for test code. *)
-            | Procname.Block _ ->
+            | Procname.Block _ | Procname.Linters_dummy_method ->
                 failwith "Proc type not supported by crashcontext: block" in
           frame.Stacktrace.method_str = (Procname.get_method caller) &&
           matches_class caller in

infer/src/clang/cFrontend_errors.ml

@@ -76,17 +76,17 @@ let while_stmt_checker_list = [CFrontend_checkers.bad_pointer_comparison_warning
 let checker_for_while_stmt stmt_info cond checker context =
   checker context stmt_info cond
 
-let get_err_log method_decl_opt loc =
+let get_err_log method_decl_opt =
   let procname = match method_decl_opt with
     | Some method_decl -> General_utils.procname_of_decl method_decl
-    | None -> General_utils.get_procname_for_frontend_checks loc in
+    | None -> Procname.Linters_dummy_method in
   LintIssues.get_err_log procname
 
 (* Add a frontend warning with a description desc at location loc to the errlog of a proc desc *)
 let log_frontend_issue method_decl_opt key issue_desc =
   let issue = issue_desc.CIssue.issue in
   let loc = issue_desc.CIssue.loc in
-  let errlog = get_err_log method_decl_opt loc in
+  let errlog = get_err_log method_decl_opt in
   let err_desc = Errdesc.explain_frontend_warning issue_desc.CIssue.description
       issue_desc.CIssue.suggestion loc in
   let name = CIssue.to_string issue in

infer/src/clang/cFrontend_utils.ml

@@ -712,8 +712,4 @@ struct
           Pvar.mk mangled_name procname
     | None -> Pvar.mk (Mangled.from_string name_string) procname
 
-  let get_procname_for_frontend_checks loc =
-    let mangled = string_crc_hex32 (DB.source_file_to_string loc.Location.file) in
-    Procname.from_string_c_fun ("frontend_checks_" ^ mangled)
-
 end

infer/src/clang/cFrontend_utils.mli

@@ -217,8 +217,6 @@ sig
 
   val procname_of_decl : Clang_ast_t.decl -> Procname.t
 
-  val get_procname_for_frontend_checks : Location.t -> Procname.t
-
   val mk_class_field_name : Clang_ast_t.named_decl_info -> Ident.fieldname
 
   val get_var_name_mangled : Clang_ast_t.named_decl_info -> Clang_ast_t.var_decl_info ->

infer/tests/codetoanalyze/objc/linters/issues.exp

@@ -1,6 +1,6 @@
-assign_pointer.m, frontend_checks_006677034375a1c7e7ccfd3694390282, 18, ASSIGN_POINTER_WARNING
+assign_pointer.m, Linters_dummy_method, 18, ASSIGN_POINTER_WARNING
-assign_pointer.m, frontend_checks_006677034375a1c7e7ccfd3694390282, 20, ASSIGN_POINTER_WARNING
+assign_pointer.m, Linters_dummy_method, 20, ASSIGN_POINTER_WARNING
-assign_pointer.m, frontend_checks_006677034375a1c7e7ccfd3694390282, 22, ASSIGN_POINTER_WARNING
+assign_pointer.m, Linters_dummy_method, 22, ASSIGN_POINTER_WARNING
 atomic_prop.m, A_bla, 98, DIRECT_ATOMIC_PROPERTY_ACCESS
 atomic_prop.m, A_bla, 99, DIRECT_ATOMIC_PROPERTY_ACCESS
 atomic_prop.m, A_readP, 77, DIRECT_ATOMIC_PROPERTY_ACCESS
@@ -21,11 +21,11 @@ nsnumber.m, bad1, 13, BAD_POINTER_COMPARISON
 nsnumber.m, bad2, 18, BAD_POINTER_COMPARISON
 nsnumber.m, bad3, 23, BAD_POINTER_COMPARISON
 nsnumber.m, bad4, 43, BAD_POINTER_COMPARISON
-registered_observer/Person.m, frontend_checks_e09ed2cbfd6c3584b50a5fd5783367c9, 80, REGISTERED_OBSERVER_BEING_DEALLOCATED
+registered_observer/Person.m, Linters_dummy_method, 80, REGISTERED_OBSERVER_BEING_DEALLOCATED
-registered_observer/Person.m, frontend_checks_e09ed2cbfd6c3584b50a5fd5783367c9, 97, REGISTERED_OBSERVER_BEING_DEALLOCATED
+registered_observer/Person.m, Linters_dummy_method, 97, REGISTERED_OBSERVER_BEING_DEALLOCATED
-registered_observer/ViewController3.m, frontend_checks_6eb87af45b67f4c5dda049872d80dc43, 14, REGISTERED_OBSERVER_BEING_DEALLOCATED
+registered_observer/ViewController3.m, Linters_dummy_method, 14, REGISTERED_OBSERVER_BEING_DEALLOCATED
-strong_delegate.m, frontend_checks_40af2f421be894c3b6306d2942a2c8b7, 15, STRONG_DELEGATE_WARNING
+strong_delegate.m, Linters_dummy_method, 15, STRONG_DELEGATE_WARNING
-strong_delegate.m, frontend_checks_40af2f421be894c3b6306d2942a2c8b7, 19, STRONG_DELEGATE_WARNING
+strong_delegate.m, Linters_dummy_method, 19, STRONG_DELEGATE_WARNING
-strong_delegate.m, frontend_checks_40af2f421be894c3b6306d2942a2c8b7, 21, STRONG_DELEGATE_WARNING
+strong_delegate.m, Linters_dummy_method, 21, STRONG_DELEGATE_WARNING
-strong_delegate.m, frontend_checks_40af2f421be894c3b6306d2942a2c8b7, 23, STRONG_DELEGATE_WARNING
+strong_delegate.m, Linters_dummy_method, 23, STRONG_DELEGATE_WARNING
-strong_delegate.m, frontend_checks_40af2f421be894c3b6306d2942a2c8b7, 25, STRONG_DELEGATE_WARNING
+strong_delegate.m, Linters_dummy_method, 25, STRONG_DELEGATE_WARNING

infer/tests/codetoanalyze/objcpp/linters/issues.exp

@@ -8,6 +8,6 @@ componentkit/Test.mm, FooComponent_newWithString:, 85, MUTABLE_LOCAL_VARIABLE_IN
 componentkit/Test.mm, SomeClass_init, 58, MUTABLE_LOCAL_VARIABLE_IN_COMPONENT_FILE
 cxx_reference_in_block/block.mm, A_foo3:param2:, 37, CXX_REFERENCE_CAPTURED_IN_OBJC_BLOCK
 cxx_reference_in_block/block.mm, A_foo:, 20, CXX_REFERENCE_CAPTURED_IN_OBJC_BLOCK
-global-var/B.mm, frontend_checks_a1a4821f6afe8cbd5bde0f8905d6f284, 30, GLOBAL_VARIABLE_INITIALIZED_WITH_FUNCTION_OR_METHOD_CALL
+global-var/B.mm, Linters_dummy_method, 30, GLOBAL_VARIABLE_INITIALIZED_WITH_FUNCTION_OR_METHOD_CALL
-global-var/B.mm, frontend_checks_a1a4821f6afe8cbd5bde0f8905d6f284, 32, GLOBAL_VARIABLE_INITIALIZED_WITH_FUNCTION_OR_METHOD_CALL
+global-var/B.mm, Linters_dummy_method, 32, GLOBAL_VARIABLE_INITIALIZED_WITH_FUNCTION_OR_METHOD_CALL
-global-var/B.mm, frontend_checks_a1a4821f6afe8cbd5bde0f8905d6f284, 34, GLOBAL_VARIABLE_INITIALIZED_WITH_FUNCTION_OR_METHOD_CALL
+global-var/B.mm, Linters_dummy_method, 34, GLOBAL_VARIABLE_INITIALIZED_WITH_FUNCTION_OR_METHOD_CALL