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Enumerate iterator types

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This commit is contained in:
kortschak 2014-07-03 09:57:31 +09:30
parent 1f67913ed9
commit cd46452b63
23 changed files with 145 additions and 68 deletions
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4
graph/iterator/linksto_iterator.go
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@ -118,7 +118,7 @@ func (it *LinksTo) Optimize() (graph.Iterator, bool) {
newPrimary, changed := it.primaryIt.Optimize()
if changed {
it.primaryIt = newPrimary
if it.primaryIt.Type() == "null" {
if it.primaryIt.Type() == graph.Null {
it.nextIt.Close()
return it.primaryIt, true
}
@ -166,7 +166,7 @@ func (it *LinksTo) NextResult() bool {
}
// Register the LinksTo.
func (it *LinksTo) Type() string { return "linksto" }
func (it *LinksTo) Type() graph.Type { return graph.LinksTo }
// Return a guess as to how big or costly it is to next the iterator.
func (it *LinksTo) Stats() graph.IteratorStats {