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Move tag handling out into graph.Tagger

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This commit is contained in:
kortschak 2014-07-30 10:15:22 +09:30
parent 0238332ca3
commit 1604dca737
28 changed files with 315 additions and 159 deletions
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20
graph/iterator/all_iterator.go
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@ -32,6 +32,7 @@ import (
// An All iterator across a range of int64 values, from `max` to `min`.
type Int64 struct {
Base
tags graph.Tagger
max, min int64
at int64
}
@ -55,13 +56,28 @@ func (it *Int64) Close() {}
func (it *Int64) Clone() graph.Iterator {
out := NewInt64(it.min, it.max)
out.CopyTagsFrom(it)
out.tags.CopyFrom(it)
return out
}
func (it *Int64) Tagger() *graph.Tagger {
return &it.tags
}
// Fill the map based on the tags assigned to this iterator.
func (it *Int64) TagResults(dst map[string]graph.Value) {
for _, tag := range it.tags.Tags() {
dst[tag] = it.Result()
}
for tag, value := range it.tags.Fixed() {
dst[tag] = value
}
}
// Prints the All iterator as just an "all".
func (it *Int64) DebugString(indent int) string {
return fmt.Sprintf("%s(%s tags: %v)", strings.Repeat(" ", indent), it.Type(), it.Tags())
return fmt.Sprintf("%s(%s tags: %v)", strings.Repeat(" ", indent), it.Type(), it.tags.Tags())
}
// Next() on an Int64 all iterator is a simple incrementing counter.