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Simplify Nexter interface

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This change allows a Nexter to be used in the same manner as a scanner
using a for graph.Next(it) {} construction.

It is important that graph.Next(it) and any associated it.Result() calls
operate on the same iterator.
This commit is contained in:
kortschak 2014-08-01 09:15:02 +09:30
parent f8e28e066e
commit b1a70d99aa
31 changed files with 168 additions and 233 deletions
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4
graph/iterator/fixed_iterator.go
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@ -135,8 +135,8 @@ func (it *Fixed) Contains(v graph.Value) bool {
return graph.ContainsLogOut(it, v, false)
}
// Return the next stored value from the iterator.
func (it *Fixed) Next() (graph.Value, bool) {
// Next advances the iterator.
func (it *Fixed) Next() bool {
graph.NextLogIn(it)
if it.lastIndex == len(it.values) {
return graph.NextLogOut(it, nil, false)