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rename to paths

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This commit is contained in:
Barak Michener 2014-09-04 16:30:05 -04:00
parent cb2caad603
commit 287ea63e2d
2 changed files with 10 additions and 14 deletions
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14
graph/api/api.go
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@ -26,16 +26,12 @@ type morphism struct {
Apply graph.MorphismFunc
}
type iteratorMorphism interface {
Apply(graph.Iterator) graph.Iterator
}
type Path struct {
stack []morphism
qs graph.QuadStore
}
func V(qs graph.QuadStore, nodes ...string) *Path {
func StartPath(qs graph.QuadStore, nodes ...string) *Path {
return &Path{
stack: []morphism{
isMorphism(qs, nodes...),
@ -53,14 +49,14 @@ func PathFromIterator(qs graph.QuadStore, it graph.Iterator) *Path {
}
}
func M(qs graph.QuadStore) *Path {
func NewPath(qs graph.QuadStore) *Path {
return &Path{
qs: qs,
}
}
func (p *Path) Reverse() *Path {
newPath := M(p.qs)
newPath := NewPath(p.qs)
for i := len(p.stack) - 1; i >= 0; i-- {
newPath.stack = append(newPath.stack, p.stack[i].Reversal())
}
@ -216,7 +212,7 @@ func buildViaPath(qs graph.QuadStore, via ...interface{}) *Path {
if path, ok := v.(*Path); ok {
return path
} else if str, ok := v.(string); ok {
return V(qs, str)
return StartPath(qs, str)
} else {
panic("Invalid type passed to buildViaPath.")
}
@ -229,5 +225,5 @@ func buildViaPath(qs graph.QuadStore, via ...interface{}) *Path {
panic("Non-string type passed to long Via path")
}
}
return V(qs, strings...)
return StartPath(qs, strings...)
}

10
graph/api/api_test.go
View file

@ -72,23 +72,23 @@ func testSet(qs graph.QuadStore) []test {
return []test{
{
message: "use out",
path: V(qs, "A").Out("follows"),
path: StartPath(qs, "A").Out("follows"),
expect: []string{"B"},
},
{
message: "use in",
path: V(qs, "B").In("follows"),
path: StartPath(qs, "B").In("follows"),
expect: []string{"A", "C", "D"},
},
{
message: "use path Out",
path: V(qs, "B").Out(V(qs, "predicates").Out("are")),
path: StartPath(qs, "B").Out(StartPath(qs, "predicates").Out("are")),
expect: []string{"F", "cool"},
},
{
message: "in",
path: V(qs, "D").Out("follows").And(
V(qs, "C").Out("follows")),
path: StartPath(qs, "D").Out("follows").And(
StartPath(qs, "C").Out("follows")),
expect: []string{"B"},
},
}