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Diffstat (limited to 'src/common/mac/GTMDefines.h')
| -rw-r--r-- | src/common/mac/GTMDefines.h | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/src/common/mac/GTMDefines.h b/src/common/mac/GTMDefines.h new file mode 100644 index 00000000..b88193cd --- /dev/null +++ b/src/common/mac/GTMDefines.h @@ -0,0 +1,241 @@ +// +// GTMDefines.h +// +// Copyright 2008 Google Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy +// of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. +// + +// ============================================================================ + +#include <AvailabilityMacros.h> +#include <TargetConditionals.h> + +// Not all MAC_OS_X_VERSION_10_X macros defined in past SDKs +#ifndef MAC_OS_X_VERSION_10_5 + #define MAC_OS_X_VERSION_10_5 1050 +#endif +#ifndef MAC_OS_X_VERSION_10_6 + #define MAC_OS_X_VERSION_10_6 1060 +#endif + +// ---------------------------------------------------------------------------- +// CPP symbols that can be overridden in a prefix to control how the toolbox +// is compiled. +// ---------------------------------------------------------------------------- + + +// By setting the GTM_CONTAINERS_VALIDATION_FAILED_LOG and +// GTM_CONTAINERS_VALIDATION_FAILED_ASSERT macros you can control what happens +// when a validation fails. If you implement your own validators, you may want +// to control their internals using the same macros for consistency. +#ifndef GTM_CONTAINERS_VALIDATION_FAILED_ASSERT + #define GTM_CONTAINERS_VALIDATION_FAILED_ASSERT 0 +#endif + +// Give ourselves a consistent way to do inlines. Apple's macros even use +// a few different actual definitions, so we're based off of the foundation +// one. +#if !defined(GTM_INLINE) + #if defined (__GNUC__) && (__GNUC__ == 4) + #define GTM_INLINE static __inline__ __attribute__((always_inline)) + #else + #define GTM_INLINE static __inline__ + #endif +#endif + +// Give ourselves a consistent way of doing externs that links up nicely +// when mixing objc and objc++ +#if !defined (GTM_EXTERN) + #if defined __cplusplus + #define GTM_EXTERN extern "C" + #else + #define GTM_EXTERN extern + #endif +#endif + +// Give ourselves a consistent way of exporting things if we have visibility +// set to hidden. +#if !defined (GTM_EXPORT) + #define GTM_EXPORT __attribute__((visibility("default"))) +#endif + +// _GTMDevLog & _GTMDevAssert +// +// _GTMDevLog & _GTMDevAssert are meant to be a very lightweight shell for +// developer level errors. This implementation simply macros to NSLog/NSAssert. +// It is not intended to be a general logging/reporting system. +// +// Please see http://code.google.com/p/google-toolbox-for-mac/wiki/DevLogNAssert +// for a little more background on the usage of these macros. +// +// _GTMDevLog log some error/problem in debug builds +// _GTMDevAssert assert if conditon isn't met w/in a method/function +// in all builds. +// +// To replace this system, just provide different macro definitions in your +// prefix header. Remember, any implementation you provide *must* be thread +// safe since this could be called by anything in what ever situtation it has +// been placed in. +// + +// We only define the simple macros if nothing else has defined this. +#ifndef _GTMDevLog + +#ifdef DEBUG + #define _GTMDevLog(...) NSLog(__VA_ARGS__) +#else + #define _GTMDevLog(...) do { } while (0) +#endif + +#endif // _GTMDevLog + +// Declared here so that it can easily be used for logging tracking if +// necessary. See GTMUnitTestDevLog.h for details. +@class NSString; +GTM_EXTERN void _GTMUnitTestDevLog(NSString *format, ...); + +#ifndef _GTMDevAssert +// we directly invoke the NSAssert handler so we can pass on the varargs +// (NSAssert doesn't have a macro we can use that takes varargs) +#if !defined(NS_BLOCK_ASSERTIONS) + #define _GTMDevAssert(condition, ...) \ + do { \ + if (!(condition)) { \ + [[NSAssertionHandler currentHandler] \ + handleFailureInFunction:[NSString stringWithUTF8String:__PRETTY_FUNCTION__] \ + file:[NSString stringWithUTF8String:__FILE__] \ + lineNumber:__LINE__ \ + description:__VA_ARGS__]; \ + } \ + } while(0) +#else // !defined(NS_BLOCK_ASSERTIONS) + #define _GTMDevAssert(condition, ...) do { } while (0) +#endif // !defined(NS_BLOCK_ASSERTIONS) + +#endif // _GTMDevAssert + +// _GTMCompileAssert +// _GTMCompileAssert is an assert that is meant to fire at compile time if you +// want to check things at compile instead of runtime. For example if you +// want to check that a wchar is 4 bytes instead of 2 you would use +// _GTMCompileAssert(sizeof(wchar_t) == 4, wchar_t_is_4_bytes_on_OS_X) +// Note that the second "arg" is not in quotes, and must be a valid processor +// symbol in it's own right (no spaces, punctuation etc). + +// Wrapping this in an #ifndef allows external groups to define their own +// compile time assert scheme. +#ifndef _GTMCompileAssert + // We got this technique from here: + // http://unixjunkie.blogspot.com/2007/10/better-compile-time-asserts_29.html + + #define _GTMCompileAssertSymbolInner(line, msg) _GTMCOMPILEASSERT ## line ## __ ## msg + #define _GTMCompileAssertSymbol(line, msg) _GTMCompileAssertSymbolInner(line, msg) + #define _GTMCompileAssert(test, msg) \ + typedef char _GTMCompileAssertSymbol(__LINE__, msg) [ ((test) ? 1 : -1) ] +#endif // _GTMCompileAssert + +// Macro to allow fast enumeration when building for 10.5 or later, and +// reliance on NSEnumerator for 10.4. Remember, NSDictionary w/ FastEnumeration +// does keys, so pick the right thing, nothing is done on the FastEnumeration +// side to be sure you're getting what you wanted. +#ifndef GTM_FOREACH_OBJECT + #if TARGET_OS_IPHONE || (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5) + #define GTM_FOREACH_OBJECT(element, collection) \ + for (element in collection) + #define GTM_FOREACH_KEY(element, collection) \ + for (element in collection) + #else + #define GTM_FOREACH_OBJECT(element, collection) \ + for (NSEnumerator * _ ## element ## _enum = [collection objectEnumerator]; \ + (element = [_ ## element ## _enum nextObject]) != nil; ) + #define GTM_FOREACH_KEY(element, collection) \ + for (NSEnumerator * _ ## element ## _enum = [collection keyEnumerator]; \ + (element = [_ ## element ## _enum nextObject]) != nil; ) + #endif +#endif + +// ============================================================================ + +// ---------------------------------------------------------------------------- +// CPP symbols defined based on the project settings so the GTM code has +// simple things to test against w/o scattering the knowledge of project +// setting through all the code. +// ---------------------------------------------------------------------------- + +// Provide a single constant CPP symbol that all of GTM uses for ifdefing +// iPhone code. +#if TARGET_OS_IPHONE // iPhone SDK + // For iPhone specific stuff + #define GTM_IPHONE_SDK 1 + #if TARGET_IPHONE_SIMULATOR + #define GTM_IPHONE_SIMULATOR 1 + #else + #define GTM_IPHONE_DEVICE 1 + #endif // TARGET_IPHONE_SIMULATOR +#else + // For MacOS specific stuff + #define GTM_MACOS_SDK 1 +#endif + +// Provide a symbol to include/exclude extra code for GC support. (This mainly +// just controls the inclusion of finalize methods). +#ifndef GTM_SUPPORT_GC + #if GTM_IPHONE_SDK + // iPhone never needs GC + #define GTM_SUPPORT_GC 0 + #else + // We can't find a symbol to tell if GC is supported/required, so best we + // do on Mac targets is include it if we're on 10.5 or later. + #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4 + #define GTM_SUPPORT_GC 0 + #else + #define GTM_SUPPORT_GC 1 + #endif + #endif +#endif + +// To simplify support for 64bit (and Leopard in general), we provide the type +// defines for non Leopard SDKs +#if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4 + // NSInteger/NSUInteger and Max/Mins + #ifndef NSINTEGER_DEFINED + #if __LP64__ || NS_BUILD_32_LIKE_64 + typedef long NSInteger; + typedef unsigned long NSUInteger; + #else + typedef int NSInteger; + typedef unsigned int NSUInteger; + #endif + #define NSIntegerMax LONG_MAX + #define NSIntegerMin LONG_MIN + #define NSUIntegerMax ULONG_MAX + #define NSINTEGER_DEFINED 1 + #endif // NSINTEGER_DEFINED + // CGFloat + #ifndef CGFLOAT_DEFINED + #if defined(__LP64__) && __LP64__ + // This really is an untested path (64bit on Tiger?) + typedef double CGFloat; + #define CGFLOAT_MIN DBL_MIN + #define CGFLOAT_MAX DBL_MAX + #define CGFLOAT_IS_DOUBLE 1 + #else /* !defined(__LP64__) || !__LP64__ */ + typedef float CGFloat; + #define CGFLOAT_MIN FLT_MIN + #define CGFLOAT_MAX FLT_MAX + #define CGFLOAT_IS_DOUBLE 0 + #endif /* !defined(__LP64__) || !__LP64__ */ + #define CGFLOAT_DEFINED 1 + #endif // CGFLOAT_DEFINED +#endif // MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4 |