Fast append optimization for the DOM parser
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Key: XERCESC-1735
URL: https://issues.apache.org/jira/browse/XERCESC-1735
Project: Xerces-C++
Issue Type: Improvement
Components: DOM
Affects Versions: 2.7.0
Environment: any
Reporter: Boris Kolpackov
The attached patch adds the appendChildFast function to the DOMParentNode
internal interface which skips a number of actions and checks compared to the
vanilla appendChild function that are unnecessary in the controlled environment
of building a new DOM document. The patch also changes AbstractDOMParser to
call appendChildFast instead of appendChild.
This change results in 25-30% parsing speed improvement depending on the
workload used.
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