From: dsc Date: Fri, 24 Jun 2011 06:11:44 +0000 (-0700) Subject: Logging and NARGS utils. X-Git-Url: http://git.less.ly:3516/?a=commitdiff_plain;h=72912f6618f1f393d789eebfce7df8c559a60269;p=tanks-ios.git Logging and NARGS utils. --- diff --git a/src/qq/util/QQLogging.h b/src/qq/util/QQLogging.h new file mode 100644 index 0000000..6cfa704 --- /dev/null +++ b/src/qq/util/QQLogging.h @@ -0,0 +1,64 @@ +// Copyright (c) 2008-2010, Vincent Gable. +// vincent.gable@gmail.com + +#ifndef QQ_LOGGING_H +#define QQ_LOGGING_H + + +//based off of http://www.dribin.org/dave/blog/archives/2008/09/22/convert_to_nsstring/ +NSString* VTPG_DDToStringFromTypeAndValue(const char* typeCode, void* value); +NSString* VTPG_DDToStringFromTypeAndValue(const char* typeCode, const void* value); + +// WARNING: if NO_LOG_MACROS is #define-ed, than THE ARGUMENT WILL NOT BE EVALUATED +#ifndef NO_LOG_MACROS + +#import "qq/util/QQ_NARG.h" + + +#define QQLogExpr(_X_, ...) do{ \ + __typeof__(_X_) _Y_ = (_X_); \ + const char* _TYPE_CODE_ = @encode(__typeof__(_X_)); \ + NSString* _STR_ = VTPG_DDToStringFromTypeAndValue(_TYPE_CODE_, &_Y_); \ + if(_STR_) \ + NSLog(@"%s = %@", #_X_, _STR_); \ + else \ + NSLog(@"Unknown _TYPE_CODE_: %s for expression %s in function %s, file %s, line %d", _TYPE_CODE_, #_X_, __func__, __FILE__, __LINE__); \ +}while(0) + +#define QQLogExprWithName(_X_, _X_NAME_, ...) do{ \ + __typeof__(_X_) _Y_ = (_X_); \ + const char* _TYPE_CODE_ = @encode(__typeof__(_X_)); \ + NSString* _STR_ = VTPG_DDToStringFromTypeAndValue(_TYPE_CODE_, &_Y_); \ + if(_STR_) \ + NSLog(@"%s = %@", _X_NAME_, _STR_); \ + else \ + NSLog(@"Unknown _TYPE_CODE_: %s for expression %s in function %s, file %s, line %d", _TYPE_CODE_, #_X_, __func__, __FILE__, __LINE__); \ +}while(0) + +#define QQLog(...) do{ \ + if (QQ_NARG(__VA_ARGS__) == 1) \ + QQLogExpr(__VA_ARGS__); \ + else \ + QQLogExprWithName(__VA_ARGS__, 0); \ +}while(0) + + + +#else /* NO_LOG_MACROS */ + +#define QQLogExpr(_X_, ...) +#define QQLogExprWithName(_X_, _X_NAME_, ...) +#define QQLog(...) + +#endif /* NO_LOG_MACROS */ + + + +// http://www.wilshipley.com/blog/2005/10/pimp-my-code-interlude-free-code.html +static inline BOOL IsEmpty(id thing) { + return thing == nil || + ([thing respondsToSelector:@selector(length)] && [(NSData *)thing length] == 0) || + ([thing respondsToSelector:@selector(count)] && [(NSArray *)thing count] == 0); +} + +#endif diff --git a/src/qq/util/QQLogging.mm b/src/qq/util/QQLogging.mm new file mode 100644 index 0000000..d5729fc --- /dev/null +++ b/src/qq/util/QQLogging.mm @@ -0,0 +1,102 @@ +#import "qq/util/QQLogging.h" +// Copyright (c) 2008-2010, Vincent Gable. +// http://vincentgable.com +// +//based off http://www.dribin.org/dave/blog/archives/2008/09/22/convert_to_nsstring/ +// +static BOOL TypeCodeIsCharArray(const char *typeCode){ + int lastCharOffset = strlen(typeCode) - 1; + int secondToLastCharOffset = lastCharOffset - 1 ; + + BOOL isCharArray = typeCode[0] == '[' && + typeCode[secondToLastCharOffset] == 'c' && typeCode[lastCharOffset] == ']'; + for(int i = 1; i < secondToLastCharOffset; i++) + isCharArray = isCharArray && isdigit(typeCode[i]); + return isCharArray; +} + +//since BOOL is #defined as a signed char, we treat the value as +//a BOOL if it is exactly YES or NO, and a char otherwise. +static NSString* VTPGStringFromBoolOrCharValue(BOOL boolOrCharvalue) { + if(boolOrCharvalue == YES) + return @"YES"; + if(boolOrCharvalue == NO) + return @"NO"; + return [NSString stringWithFormat:@"'%c'", boolOrCharvalue]; +} + +static NSString* VTPGStringFromFourCharCodeOrUnsignedInt32(FourCharCode fourcc) { + return [NSString stringWithFormat:@"%u ('%c%c%c%c')", + fourcc, + (fourcc >> 24) & 0xFF, + (fourcc >> 16) & 0xFF, + (fourcc >> 8) & 0xFF, + fourcc & 0xFF]; +} + +static NSString* StringFromNSDecimalWithCurrentLocal(NSDecimal dcm) { + return NSDecimalString(&dcm, [NSLocale currentLocale]); +} + +NSString* VTPG_DDToStringFromTypeAndValue(const char* typeCode, void* value) { + return VTPG_DDToStringFromTypeAndValue(typeCode, (const void*)value); +} + +NSString* VTPG_DDToStringFromTypeAndValue(const char* typeCode, const void* value) { + #define IF_TYPE_MATCHES_INTERPRET_WITH(typeToMatch,func) \ + if (strcmp(typeCode, @encode(typeToMatch)) == 0) \ + return (func)(*(typeToMatch*)value) + +#if TARGET_OS_IPHONE + IF_TYPE_MATCHES_INTERPRET_WITH(CGPoint,NSStringFromCGPoint); + IF_TYPE_MATCHES_INTERPRET_WITH(CGSize,NSStringFromCGSize); + IF_TYPE_MATCHES_INTERPRET_WITH(CGRect,NSStringFromCGRect); +#else + IF_TYPE_MATCHES_INTERPRET_WITH(NSPoint,NSStringFromPoint); + IF_TYPE_MATCHES_INTERPRET_WITH(NSSize,NSStringFromSize); + IF_TYPE_MATCHES_INTERPRET_WITH(NSRect,NSStringFromRect); +#endif + IF_TYPE_MATCHES_INTERPRET_WITH(NSRange,NSStringFromRange); + IF_TYPE_MATCHES_INTERPRET_WITH(Class,NSStringFromClass); + IF_TYPE_MATCHES_INTERPRET_WITH(SEL,NSStringFromSelector); + IF_TYPE_MATCHES_INTERPRET_WITH(BOOL,VTPGStringFromBoolOrCharValue); + IF_TYPE_MATCHES_INTERPRET_WITH(NSDecimal,StringFromNSDecimalWithCurrentLocal); + + #define IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(typeToMatch,formatString) \ + if (strcmp(typeCode, @encode(typeToMatch)) == 0) \ + return [NSString stringWithFormat:(formatString), (*(typeToMatch*)value)] + + + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(CFStringRef,@"%@"); //CFStringRef is toll-free bridged to NSString* + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(CFArrayRef,@"%@"); //CFArrayRef is toll-free bridged to NSArray* + IF_TYPE_MATCHES_INTERPRET_WITH(FourCharCode, VTPGStringFromFourCharCodeOrUnsignedInt32); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(long long,@"%lld"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(unsigned long long,@"%llu"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(float,@"%f"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(double,@"%f"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(id,@"%@"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(short,@"%hi"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(unsigned short,@"%hu"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(int,@"%i"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(unsigned, @"%u"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(long,@"%i"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(long double,@"%Lf"); //WARNING on older versions of OS X, @encode(long double) == @encode(double) + + //C-strings + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(char*, @"%s"); + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(const char*, @"%s"); + if(TypeCodeIsCharArray(typeCode)) + return [NSString stringWithFormat:@"%s", (char*)value]; + + IF_TYPE_MATCHES_INTERPRET_WITH_FORMAT(void*,@"(void*)%p"); + + //This is a hack to print out CLLocationCoordinate2D, without needing to #import + //A CLLocationCoordinate2D is a struct made up of 2 doubles. + //We detect it by hard-coding the result of @encode(CLLocationCoordinate2D). + //We get at the fields by treating it like an array of doubles, which it is identical to in memory. + if(strcmp(typeCode, "{?=dd}")==0)//@encode(CLLocationCoordinate2D) + return [NSString stringWithFormat:@"{latitude=%g,longitude=%g}",((double*)value)[0],((double*)value)[1]]; + + //we don't know how to convert this typecode into an NSString + return nil; +} diff --git a/src/qq/util/QQ_NARG.h b/src/qq/util/QQ_NARG.h new file mode 100644 index 0000000..8cfb588 --- /dev/null +++ b/src/qq/util/QQ_NARG.h @@ -0,0 +1,40 @@ +#ifndef QQ_NARG_H +#define QQ_NARG_H + + +/* The QQ_NARG macro returns the number of arguments that have been passed to it. + * https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s + */ +#define QQ_NARG(...) \ + QQ_NARG_(__VA_ARGS__,QQ_RSEQ_N()) + +#define QQ_NARG_(...) \ + QQ_ARG_N(__VA_ARGS__) + +#define QQ_ARG_N( \ + _1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \ + _11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \ + _21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \ + _31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \ + _41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \ + _51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \ + _61,_62,_63,N,...) N + +#define QQ_RSEQ_N() \ + 63,62,61,60, \ + 59,58,57,56,55,54,53,52,51,50, \ + 49,48,47,46,45,44,43,42,41,40, \ + 39,38,37,36,35,34,33,32,31,30, \ + 29,28,27,26,25,24,23,22,21,20, \ + 19,18,17,16,15,14,13,12,11,10, \ + 9,8,7,6,5,4,3,2,1,0 + + +#define QQ_VA_ARG1(__X1__, ...) __X1__ +#define QQ_VA_ARG2(__X1__, __X2__, ...) __X2__ +#define QQ_VA_ARG3(__X1__, __X2__, __X3__, ...) __X3__ + +#define QQ_VA_HEAD(__HEAD__, ...) __HEAD__ +#define QQ_VA_TAIL(__HEAD__, ...) __VA_ARGS__ + +#endif