* Revert "Revert "[ASLayoutSpec] Use childrenMap directly to prevent creating an NSArray within ASDK (#1937)""
This reverts commit 735b4ebd0872483044d98a5d05b43324e76fc8d4.
* Fix crash and add exception for mutating while using fast enumeration of ASLayoutSpec children
NSFastEnumeration is potentially quite dangerous in the wrong hands. In particular, it does not provide a safe mechanism for you to return temporary objects directly, and it does not provide any guarantee that you will be called when the enumeration has completed; therefore if we generate temporaries and store them in an instance variable, we will not necessarily be able to clean them up! This means fast enumeration methods should never be called within an autorelease pool or the autorelease pool be drained within the fast enumeration loop.
The reason is we store references to objects in the stackBuf struct by casting the child pointer to __autoreleasing id. If we pop the autorelease pool between calls to -countByEnumeratingWithState:objects:count:, it will die in a messy explosion of pointer dereferences and EXC_BAD_ACCESS.
* Add tests for ASDisplayNode and ASLayoutSpec fast enumeration
If a node was added to a supernode, the supernode could be in a layout pending state. All of the hierarchy state properties related to the transition need to be copied over as well as propagated down the subtree. This is especially important as with Implicit Hierarchy Management adding subnodes can happen while a transition is in fly
Something interesting going on here with ARC / Objective-C++ that we are investigating and will re-land.
This reverts commit c90ed08d1073701e2c7f8a2677d460c140f05264.
This triggers on existing code that needs to be updated, but also there is some investigation
needed as to whether it is a valid use case to have a >1.0 value in order to position greater-than-bounds elements.
* [ASDisplayNode] Ensure that nil can never be returned from -measureWithSizeRange:
This can happen in rare cases when multiple relayouts occur while a transition is being measured.
* [ASDisplayNode] Use ternary operator style for nil check.
* Use childrenMap directly to prevent creating an NSArray in ASDK for ASLayoutSpec children
* Add locking for parent property in ASLayoutSpec
* Remove unnecessary import
* Add newline
* Add NSFastEnumeration to ASEnvironment and ASDisplayNode / ASLayoutSpec
* Change NSMutableArray initializer to arrayWithCapacity:
* Move ASLayoutSpec+Private.h into Private folder
Fixes building with Swift
* Remove lock for ASLayoutSpec parent
* Simplify applying layout transition in preparation for bigger layout transition API work
* Change from apply to complete in if layout transitions are involved and _applyLayout: to _setCalculatedLayout: for layout
* Change to applySubnodeInsertions and applySubnodeRemovals
* Change from completeTransition to commitTransition and flip logic around when to trampoline to the main thread for implicit hierarchy management
* More internal API improvements
* Fix merge conflicts
* Rename _layout to _calculatedLayout
* Fix ASTextNode's ascender to also include the line height specified by paragraph style in the attributed string.
* Merge conflict (original patch is for an old version)
* [ASEnvironmentTraitCollection] default user interface idiom to ASEnvironmentTraitCollection
UIUserInterfaceIdiomUnspecified is -1 so we were actually defaulting our trait collection to UIUserInterfaceIdiomPhone (which is 0).
* Fix a few places where we weren’t using the default method to create the base traits
[_ASHierarchyChangeSet] Oopsy daisy
[ASDataController] Tweak our update validation
[ASHierarchyChangeSet] Fix bugs
Finish up some stuff
[ASDataController] Put some stuff back
[ASChangeSetDataController] Always use changeset
[ASDataController] Put other stuff back
[_ASHierarchyChangeSet] Use fast enumeration
[_ASHierarchyChangeSet] Fix assertion format strings, return on fail so we don't crash in production
[ASDataController] Store data source item counts as vector rather than NSArray
[ASDataController] Build some tests for the update validation
[ASDataController] Fix issues with update validation
Get rid of new file
[ASDataController] Suppress changeset validation before initial reload
[ASDataController] Make invalid update log vs. exception publicly toggleable
Apple claims in the AVFoundationProgramming Guide that HLS videos can be constructed only through URL, but later with iOS 4.3 release notes it claimed to bring updates to how the HLS videos should be initialized, which works with asset too. I’ve tested with both, and it looks like initializing with asset is buggy.
