library(XML)
getRefCount =
function(node)
.Call("R_getXMLRefCount", node)
doc = xmlParse(system.file("exampleData", "mtcars.xml", package = "XML"))
els = getNodeSet(doc, "//record")
sapply(els, getRefCount)
rm(els)
gc()
els = getNodeSet(doc, "//record", addFinalizer = FALSE)
sapply(els, getRefCount)
r = xmlRoot(doc, addFinalizer = FALSE)
getRefCount(r)
r = xmlRoot(doc, addFinalizer = NA)
getRefCount(r)
rm(r); gc()
r = xmlRoot(doc, addFinalizer = FALSE)
kids = xmlChildren(r, addFinalizer = FALSE)
sapply(kids, getRefCount)
rm(kids)
r = xmlRoot(doc, addFinalizer = FALSE)
kids = xmlChildren(r, addFinalizer = FALSE)
sapply(kids, getRefCount)
a = kids[[1]]
b = getSibling(a, addFinalizer = FALSE)
getRefCount(b)
xmlSize(b)
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