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graph: move NewEdge method from encoding.Builder to graph.EdgeAdder

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Also rename graph.EdgeSetter to graph.EdgeAdder.

Fixes #56.
This commit is contained in:
mewmew
2017-08-18 03:51:30 +02:00
parent a1f42c86ac
commit 0ebdd59ba5
8 changed files with 59 additions and 63 deletions
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22
graph/encoding/dot/decode_test.go
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@@ -118,15 +118,9 @@ func (g *dotDirectedGraph) NewNode() graph.Node {
return &dotNode{Node: g.DirectedGraph.NewNode()}
}
// NewEdge adds a new edge from the source to the destination node to the graph,
// or returns the existing edge if already present.
// NewEdge returns a new Edge from the source to the destination node.
func (g *dotDirectedGraph) NewEdge(from, to graph.Node) graph.Edge {
if e := g.Edge(from, to); e != nil {
return e
}
e := &dotEdge{Edge: simple.Edge{F: from, T: to}}
g.SetEdge(e)
return e
return &dotEdge{Edge: g.DirectedGraph.NewEdge(from, to)}
}
// DOTAttributers implements the dot.Attributers interface.
@@ -159,15 +153,9 @@ func (g *dotUndirectedGraph) NewNode() graph.Node {
return &dotNode{Node: g.UndirectedGraph.NewNode()}
}
// NewEdge adds a new edge from the source to the destination node to the graph,
// or returns the existing edge if already present.
// NewEdge returns a new Edge from the source to the destination node.
func (g *dotUndirectedGraph) NewEdge(from, to graph.Node) graph.Edge {
if e := g.Edge(from, to); e != nil {
return e
}
e := &dotEdge{Edge: simple.Edge{F: from, T: to}}
g.SetEdge(e)
return e
return &dotEdge{Edge: g.UndirectedGraph.NewEdge(from, to)}
}
// DOTAttributers implements the dot.Attributers interface.
@@ -222,7 +210,7 @@ func (n *dotNode) Attributes() []encoding.Attribute {
// dotEdge extends simple.Edge with a label field to test round-trip encoding and
// decoding of edge DOT label attributes.
type dotEdge struct {
simple.Edge
graph.Edge
// Edge label.
Label string
}