On Fri, May 24, 2013 at 7:23 AM, Edward K. Ream <[email protected]> wrote:

> These four methods seem to me to be the only holes in the vnode API.
I'll add these *experimental* definitions today.

Rev 5793 adds the following new vnode methods, with a *minimal* unit test::

    def cloneAsNthChild(self,parent_v,n):
        # Does not check for illegal clones!
        v = self
        v._linkAsNthChild(parent_v,n)
        return v

    def insertAsFirstChild(self):
        v = self
        return v.insertAsNthChild(0)

    def insertAsLastChild(self):
        v = self
        return v.insertAsNthChild(len(v.children))

    def insertAsNthChild(self,n):
        v = self
        assert 0 <= n <= len(v.children)
        v2 = vnode(v.context)
        v2._linkAsNthChild(v,n)
        assert v.children[n] == v2
        return v2

Terry, please test the insert methods.  When I have time, later today, I'll
figure out what to do about bad args to v.cloneAsNthChild.

Edward

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