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257 lines
5.5 KiB
257 lines
5.5 KiB
(*
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* Copyright (c) 2013 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*)
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open! Utils
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(** This module handles C or Objective-C types for which there are special rules for memory management *)
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(** This module models special c struct types from the Apple's Core Foundation libraries
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for which there are particular rules for memory management. *)
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module Core_foundation_model =
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struct
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let core_foundation = [
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"__CFArray";
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"__CFAttributedString";
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"__CFBag";
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"__CFNull";
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"__CFAllocator";
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"__CFBinaryHeap";
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"__CFBitVector";
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"__CFBundle";
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"__CFCalendar";
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"__CFCharacterSet";
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"__CFDate";
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"__CFDateFormatter";
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"__CFDictionary";
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"__CFError";
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"__CFFileDescriptor";
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"__CFFileSecurity";
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"__CFLocale";
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"__CFMachPort";
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"__CFMessagePort";
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"__CFNotificationCenter";
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"__CFBoolean";
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"__CFNumber";
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"__CFNumberFormatter";
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"__CFPlugInInstance";
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"__CFReadStream";
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"__CFWriteStream";
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"__CFRunLoop";
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"__CFRunLoopSource";
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"__CFRunLoopObserver";
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"__CFRunLoopTimer";
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"__CFSet";
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"__CFStringTokenizer";
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"__CFSocket";
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"__CFReadStream";
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"__CFWriteStream";
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"__CFTimeZone";
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"__CFTree";
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"__CFURLEnumerator";
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"__CFUUID"
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]
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let cf_network = [
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"_CFHTTPAuthentication";
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"__CFHTTPMessage";
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"__CFHost";
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"__CFNetDiagnostic";
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"__CFNetService";
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"__CFNetServiceMonitor";
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"__CFNetServiceBrowser"
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]
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let core_media = [
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"OpaqueCMBlockBuffer";
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"opaqueCMBufferQueue";
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"opaqueCMBufferQueueTriggerToken";
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"opaqueCMFormatDescription";
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"OpaqueCMMemoryPool";
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"opaqueCMSampleBuffer";
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"opaqueCMSimpleQueue";
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"OpaqueCMClock";
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"OpaqueCMTimebase"
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]
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let core_text = [
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"__CTFont";
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"__CTFontCollection";
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"__CTFontDescriptor";
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"__CTFrame";
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"__CTFramesetter";
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"__CTGlyphInfo";
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"__CTLine";
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"__CTParagraphStyle";
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"__CTRubyAnnotation";
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"__CTRun";
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"__CTRunDelegate";
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"__CTTextTab";
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"__CTTypesetter"
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]
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let core_video = [
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"__CVBuffer";
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"__CVMetalTextureCache";
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"__CVOpenGLESTextureCache";
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"__CVPixelBufferPool"
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]
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let image_io = [
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"CGImageDestination";
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"CGImageMetadata";
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"CGImageMetadataTag";
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"CGImageSource"
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]
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let security = [
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"__SecCertificate";
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"__SecIdentity";
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"__SecKey";
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"__SecPolicy";
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"__SecAccessControl";
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"__SecRandom";
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"__SecCode";
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"__SecTrust";
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"__SecRequirement"
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]
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let system_configuration = [
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"__SCDynamicStore";
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"__SCNetworkInterface";
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"__SCBondStatus";
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"__SCNetworkProtocol";
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"__SCNetworkService";
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"__SCNetworkSet";
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"__SCNetworkConnection";
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"__SCNetworkReachability";
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"__SCPreferences"
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]
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let core_graphics_types = [
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"CGAffineTransform";
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"CGBase";
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"CGBitmapContext";
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"CGColor";
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"CGColorSpace";
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"CGContext";
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"CGDataConsumer";
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"CGDataProvider";
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"CGError";
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"CGFont";
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"CGFunction";
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"CGGeometry";
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"CGGradient";
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"CGImage";
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"CGLayer";
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"CGPath";
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"CGPattern";
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"CGPDFArray";
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"CGPDFContentStream";
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"CGPDFContext";
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"CGPDFDictionary";
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"CGPDFDocument";
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"CGPDFObject";
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"CGPDFOperatorTable";
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"CGPDFPage";
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"CGPDFScanner";
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"CGPDFStream";
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"CGPDFString";
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"CGShading"
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]
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let core_foundation_types =
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core_foundation @
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cf_network @
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core_media @
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core_text @
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core_video @
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image_io @
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security @
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system_configuration
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let copy = "Copy"
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let create = "Create"
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let cf_retain = "CFRetain"
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let cf_release = "CFRelease"
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let upper_release = "Release"
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let ref = "Ref"
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let cf_type = "CFTypeRef"
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type core_lib =
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| Core_foundation
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| Core_graphics
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let core_lib_to_type_list lib =
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match lib with
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| Core_foundation -> core_foundation_types
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| Core_graphics -> core_graphics_types
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let is_objc_memory_model_controlled o =
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IList.mem (string_equal) o core_foundation_types ||
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IList.mem (string_equal) o core_graphics_types
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let rec is_core_lib lib typ =
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match typ with
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| Sil.Tptr (styp, _ ) ->
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is_core_lib lib styp
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| Sil.Tvar (Typename.TN_csu (_, name) )
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| Sil.Tstruct { Sil.struct_name = Some name } ->
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let core_lib_types = core_lib_to_type_list lib in
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IList.mem (=) (Mangled.to_string name) core_lib_types
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| _ -> false
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let is_core_foundation_type typ =
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is_core_lib Core_foundation typ
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let is_core_graphics_type typ =
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is_core_lib Core_graphics typ
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let is_core_lib_type typ =
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is_core_foundation_type typ ||
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is_core_graphics_type typ
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let is_core_lib_create typ funct =
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is_core_lib_type typ &&
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((string_contains create funct) ||
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(string_contains copy funct ))
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let function_arg_is_cftype typ =
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(string_contains cf_type typ)
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let is_core_lib_retain typ funct =
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function_arg_is_cftype typ && funct = cf_retain
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let is_core_lib_release typ funct =
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function_arg_is_cftype typ && funct = cf_release
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let is_core_graphics_release typ funct =
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try
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let cg_typ = IList.find
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(fun lib -> (funct = (lib^upper_release))) core_graphics_types in
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(string_contains (cg_typ^ref) typ)
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with Not_found -> false
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(*
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let function_arg_is_core_pgraphics typ =
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let res = (string_contains cf_type typ) in
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res
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*)
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end
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let is_core_lib_type typ =
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Core_foundation_model.is_core_lib_type typ
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