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cmd/compile: refactor method expression detection

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Eliminates lots of ad hoc code for recognizing the same thing in
different ways.

Passes toolstash-check.

Change-Id: Ic0bb005308e96331b4ef30f455b860e476725b61
Reviewed-on: https://go-review.googlesource.com/73190
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Matthew Dempsky 2017-10-24 14:45:41 -07:00
parent 6a223b82a4
commit fcd32885df
6 changed files with 13 additions and 12 deletions
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5
src/cmd/compile/internal/gc/syntax.go
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@ -209,6 +209,11 @@ func (n *Node) mayBeShared() bool {
return false
}
// isMethodExpression reports whether n represents a method expression T.M.
func (n *Node) isMethodExpression() bool {
return n.Op == ONAME && n.Left != nil && n.Left.Op == OTYPE && n.Right != nil && n.Right.Op == ONAME
}
// funcname returns the name of the function n.
func (n *Node) funcname() string {
if n == nil || n.Func == nil || n.Func.Nname == nil {