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Reland arc cf2 (Draft for discussion)#38255
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cyanglaz wants to merge 6 commits intoflutter:mainfrom
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December 7, 2022 11:31
…et to ARC flutter#37049" (flutter#37219)" (flutter#37320)" This reverts commit cf22fc2.
gaaclarke
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Dec 13, 2022
| UInt32 length = [self readSize]; | ||
| NSMutableArray* array = [NSMutableArray arrayWithCapacity:length]; | ||
| UInt32 length = [codec readSize]; | ||
| CFMutableArrayRef array = CFArrayCreateMutable(kCFAllocatorDefault, length, &kCFTypeArrayCallBacks); |
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If you want to minimize the diff you could say:
CFMutableArrayRef array = (__bridge CFMutableArrayRef)[NSMutableArray arrayWithCapacity:length];Then remove the CFAutorelease below.
Same thing for the dictionary below.
| _range.location += _range.length; | ||
| return data; | ||
| // return (CFDataRef)CFAutorelease((__bridge CFDataRef)data); | ||
| return (CFDataRef)CFRetain((__bridge CFDataRef)data); |
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So data is already on the autorelease pool here. You should just return it directly with the bridge cast.
return (__bridge CFDataRef)data;
| - (NSString*)readUTF8 { | ||
| NSData* bytes = [self readData:[self readSize]]; | ||
| return [[NSString alloc] initWithData:bytes encoding:NSUTF8StringEncoding]; | ||
| CFDataRef bytes = (CFDataRef)[self readDataRef:[self readSize]]; |
| NSData* bytes = [self readData:[self readSize]]; | ||
| return [[NSString alloc] initWithData:bytes encoding:NSUTF8StringEncoding]; | ||
| CFDataRef bytes = (CFDataRef)[self readDataRef:[self readSize]]; | ||
| NSData *data = (NSData*)CFBridgingRelease(bytes); |
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Why do you do CFBridgingRelease here instead of just using (__bridge)? bytes is already on the autorelease pool and initWithData:encoding: should retain it. There's no need to involve ARC. That's what we are trying to avoid =)
added 3 commits
December 13, 2022 11:09
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@cyanglaz can this be closed? |
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This is a draft for discussion only. The result will be cooperated in #37883.