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(*
* Copyright (c) 2016-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*)
open! IStd
(** List of all builtins that are interpreted specially by the backend *)
module type S = sig
type t
val __array_access : t
val __assert_fail : t
val __builtin_va_arg : t
val __builtin_va_copy : t
val __builtin_va_end : t
val __builtin_va_start : t
val __cast : t
(** [__cast(val,typ)] implements java's [typ(val)] *)
val __cxx_typeid : t
val __delete : t
val __delete_array : t
val __delete_locked_attribute : t
val __exit : t
[objc] Refactor modeling of CoreFoundation and CoreGraphics libraries Summary: The diff is very big but it's mostly removing code. It was inspired by the fact that we were getting Dead Store FPs because we were modeling some functions from CoreFoundation and CoreGraphics directly as alloc in the frontend, which caused the parameters of the function to be seen as dead. See the new test. To deal with this, if we are going to skip the function, we model it as malloc instead. Given how many models we had for those "model as malloc" functions, I removed them to rely solely on the new mechanism. The modeling of malloc and release was still based on the old retain count implementation, even though all we do here is a malloc/free kind of analysis. I also changed that to be actually malloc/free which removed many Assert false in the tests. CFRelease is not exactly free though, and it's possible to use the variable afterwards. So used a custom free builtin that only cares about removing the Memory attribute and focuses on minimizing Memory Leaks FPs. Otherwise we were translating CFBridgingRelease as a special cast, and this wasn't working. To simplify this as well, I removed all the code for the special cast, and just modeled CFBridgingRelease and CFAutorelease also as free_cf, to avoid Memory Leak false positives. I also treated the cast __bridge_transfer as a free_cf model. This means we stopped trying to report Memory Leaks on those objects. The modeling of CoreGraph release functions was done in the frontend, but seemed simpler to also simplify that code and model all the relevant functions. Reviewed By: sblackshear Differential Revision: D6397150 fbshipit-source-id: b1dc636
7 years ago
val __free_cf : t
val __get_array_length : t
val __get_type_of : t
val __global_access : t
val __infer_assume : t
val __infer_fail : t
val __infer_skip : t
(** used to represent behavior that is not modeled in infer *)
val __instanceof : t
(** [__instanceof(val,typ)] implements java's [val instanceof typ] *)
val __method_set_ignore_attribute : t
val __new : t
val __new_array : t
val __objc_alloc_no_fail : t
val __objc_dictionary_literal : t
val __placement_delete : t
val __placement_new : t
val __print_value : t
val __require_allocated_array : t
val __set_array_length : t
val __set_file_attribute : t
val __set_locked_attribute : t
val __set_mem_attribute : t
val __set_observer_attribute : t
val __set_unsubscribed_observer_attribute : t
val __set_wont_leak_attribute : t
val __split_get_nth : t
val __throw : t
val __unwrap_exception : t
val abort : t
val exit : t
val free : t
val fscanf : t
val fwscanf : t
val malloc : t
val malloc_no_fail : t
val nsArray_arrayWithObjects : t
val nsArray_arrayWithObjectsCount : t
val objc_cpp_throw : t
val pthread_create : t
val scanf : t
val sscanf : t
val swscanf : t
val vfscanf : t
val vfwscanf : t
val vscanf : t
val vsscanf : t
val vswscanf : t
val vwscanf : t
val wscanf : t
end