Turn off exceptions to reduce binary size (-600KB for arm64) (#1033)

* Turn off exceptions to reduce binary size

* Changelog

AsyncDisplayKit.xcodeproj/project.pbxproj

@@ -2738,7 +2738,11 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				MODULEMAP_FILE = Source/AsyncDisplayKit.modulemap;
 				MTL_ENABLE_DEBUG_INFO = YES;
-				OTHER_CFLAGS = "-Wundef";
+				OTHER_CFLAGS = (
+					"-Wundef",
+					"-fno-exceptions",
+					"-fno-objc-arc-exceptions",
+				);
 				PRODUCT_BUNDLE_IDENTIFIER = "com.facebook.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = AsyncDisplayKit;
 				SKIP_INSTALL = YES;
@@ -2767,7 +2771,11 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				MODULEMAP_FILE = Source/AsyncDisplayKit.modulemap;
 				MTL_ENABLE_DEBUG_INFO = NO;
-				OTHER_CFLAGS = "-Wundef";
+				OTHER_CFLAGS = (
+					"-Wundef",
+					"-fno-exceptions",
+					"-fno-objc-arc-exceptions",
+				);
 				PRODUCT_BUNDLE_IDENTIFIER = "com.facebook.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = AsyncDisplayKit;
 				SKIP_INSTALL = YES;
@@ -2881,7 +2889,11 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				MODULEMAP_FILE = Source/AsyncDisplayKit.modulemap;
 				MTL_ENABLE_DEBUG_INFO = NO;
-				OTHER_CFLAGS = "-Wundef";
+				OTHER_CFLAGS = (
+					"-Wundef",
+					"-fno-exceptions",
+					"-fno-objc-arc-exceptions",
+				);
 				PRODUCT_BUNDLE_IDENTIFIER = "com.facebook.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = AsyncDisplayKit;
 				SKIP_INSTALL = YES;

BUCK

@@ -4,6 +4,8 @@
 COMMON_PREPROCESSOR_FLAGS = [
   '-fobjc-arc',
   '-DDEBUG=1',
+  '-fno-exceptions',
+  '-fno-objc-arc-exceptions'
 ]
 
 COMMON_LANG_PREPROCESSOR_FLAGS = {

CHANGELOG.md

@@ -22,6 +22,7 @@
 - Enable locking assertions (and add some more) to improve and enforce locking safety within the framework [Huy Nguyen](https://github.com/nguyenhuy) [#1024](https://github.com/TextureGroup/Texture/pull/1024)
 - Split MapKit, Photos, and AssetsLibrary dependent code into separate subspecs to improve binary size and start time when they're not needed. The default subspec includes all three for backwards compatibility, but this **will change in 3.0**. When using non-Cocoapods build environments, define `AS_USE_PHOTOS, AS_USE_MAPKIT, AS_USE_ASSETS_LIBRARY` to 1 respectively to signal their use. [Adlai Holler](https://github.com/Adlai-Holler)
 - Optimization: Removed an NSMutableArray in flattened layouts. [Adlai Holler](https://github.com/Adlai-Holler)
+- Reduced binary size by disabling exception support (which we don't use.) [Adlai Holler](https://github.com/Adlai-Holler)
 
 ## 2.7
 - Fix pager node for interface coalescing. [Max Wang](https://github.com/wsdwsd0829) [#877](https://github.com/TextureGroup/Texture/pull/877)

Source/ASDisplayNodeExtras.h

@@ -30,7 +30,7 @@
   #define ASSetDebugName(node, format, ...) node.debugName = [NSString stringWithFormat:format, __VA_ARGS__]
   #define ASSetDebugNames(...) _ASSetDebugNames(self.class, @"" # __VA_ARGS__, __VA_ARGS__, nil)
 #else
-  #define ASSetDebugName(node, name)
+  #define ASSetDebugName(node, format, ...)
   #define ASSetDebugNames(...)
 #endif
 

Texture.podspec

@@ -16,6 +16,7 @@ Pod::Spec.new do |spec|
 
   # Subspecs
   spec.subspec 'Core' do |core|
+    core.compiler_flags = '-fno-exceptions -fno-objc-arc-exceptions'
     core.public_header_files = [
       'Source/*.h',
       'Source/Details/**/*.h',