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Replace DebugString with Describe

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This change makes tree description completely open to mechanical
analysis and ensures consistency between description formats for each of
the iterator types.

Renamed StatsContainer.(Kind -> Type) for consistency.
This commit is contained in:
kortschak 2014-09-05 09:05:02 +09:30
parent b5f113203d
commit 62013d3dfc
22 changed files with 186 additions and 162 deletions
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9
graph/iterator/iterator.go
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@ -17,7 +17,6 @@ package iterator
// Define the general iterator interface.
import (
"strings"
"sync/atomic"
"github.com/google/cayley/graph"
@ -78,9 +77,11 @@ func (it *Null) Type() graph.Type { return graph.Null }
// Null has nothing it needs to do.
func (it *Null) Optimize() (graph.Iterator, bool) { return it, false }
// Print the null iterator.
func (it *Null) DebugString(indent int) string {
return strings.Repeat(" ", indent) + "(null)"
func (it *Null) Describe() graph.Description {
return graph.Description{
UID: it.UID(),
Type: it.Type().String(),
}
}
func (it *Null) Next() bool {