Kirk Steuber 7fdb378650 Bug 1359556 - Optimize cloneNode by preinitializing attribute and child arrays r=bz ... Currently, attribute and child arrays (implemented in dom/base/nsAttrAndChildArray.h) start out empty. When cloning, the array ends up being resized multiple times in order to add the attributes and children that are being cloned from the original node. This would be quicker if the array was initialized to the correct size in the first place so that resizes are not necessary. However, preallocating space for children is only necessary when performing a deep clone. Therefore, an additional parameter is being added to the Clone, CopyInnerTo, and CloneDocHelper methods to indicate whether preallocation of children should happen. Attributes are copied either way, so that part of the array is preallocated in both cases. MozReview-Commit-ID: 3iVezeAKXnI --HG-- extra : rebase_source : 9c3deec6d7aafd6411044d623d4863637b45fd58		2017-04-20 12:57:48 -07:00
..
crashtests
moz.build	Bug 1339232 - annotate more dom/* moz.build files with BUG_COMPONENT. r=overholt	2017-03-01 08:20:25 -05:00
nsMathMLElement.cpp	Bug 1355540, use SegmentedVector for pending links to avoid slow hashtable lookups in hot codepaths, r=bz	2017-04-15 18:55:05 +03:00
nsMathMLElement.h	Bug 1359556 - Optimize cloneNode by preinitializing attribute and child arrays r=bz	2017-04-20 12:57:48 -07:00
nsMathMLElementFactory.cpp