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Beter table/collection update history (#2562)

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- Introduce thread-safe ASEventLog
- ASCollectionNode and ASTableNode share their event log with their ASDataController. The controller uses it to log change set submitting and finishing events.
- ASCollectionNode and ASTableNode print their data source and delegate in their debug description.
This commit is contained in:
Huy Nguyen
2016-11-09 00:44:49 +00:00
committed by Adlai Holler
parent 06f5754b37
commit fb6d1830a0
22 changed files with 366 additions and 111 deletions
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16
AsyncDisplayKit/Details/ASDataController.h
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@@ -14,9 +14,16 @@
#import <AsyncDisplayKit/ASDealloc2MainObject.h>
#import <AsyncDisplayKit/ASDimension.h>
#import <AsyncDisplayKit/ASFlowLayoutController.h>
#import <AsyncDisplayKit/ASEventLog.h>
NS_ASSUME_NONNULL_BEGIN
#if ASEVENTLOG_ENABLE
#define ASDataControllerLogEvent(dataController, ...) [dataController.eventLog logEventWithBacktrace:[NSThread callStackSymbols] format:__VA_ARGS__]
#else
#define ASDataControllerLogEvent(dataController, ...)
#endif
@class ASCellNode;
@class ASDataController;
@protocol ASEnvironment;
@@ -109,7 +116,7 @@ FOUNDATION_EXPORT NSString * const ASDataControllerRowNodeKind;
@protocol ASFlowLayoutControllerDataSource;
@interface ASDataController : ASDealloc2MainObject <ASFlowLayoutControllerDataSource>
- (instancetype)initWithDataSource:(id<ASDataControllerSource>)dataSource NS_DESIGNATED_INITIALIZER;
- (instancetype)initWithDataSource:(id<ASDataControllerSource>)dataSource eventLog:(nullable ASEventLog *)eventLog NS_DESIGNATED_INITIALIZER;
/**
Data source for fetching data info.
@@ -135,6 +142,13 @@ FOUNDATION_EXPORT NSString * const ASDataControllerRowNodeKind;
*/
@property (nonatomic, readonly) BOOL initialReloadDataHasBeenCalled;
#if ASEVENTLOG_ENABLE
/*
* @abstract The primitive event tracing object. You shouldn't directly use it to log event. Use the ASDataControllerLogEvent macro instead.
*/
@property (nonatomic, strong, readonly) ASEventLog *eventLog;
#endif
/** @name Data Updating */
- (void)beginUpdates;