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go/types: export Named._Orig as Named.Origin

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Export the _Orig method for Named types, and rename to Origin.  As
discussed in #47916, Orig is easily confused with Original, which is
not as good a name. Spelling out 'Origin' resolves the ambiguity.

Updates #47916

Change-Id: I377c73de82310d3f6aa0bd82dddcd60ee067155b
Reviewed-on: https://go-review.googlesource.com/c/go/+/350996
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Robert Findley 2021-09-20 13:28:25 -04:00
parent b6dddaccd7
commit 988f18d61d
1 changed files with 3 additions and 3 deletions
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6
src/go/types/named.go
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@ -91,9 +91,9 @@ func (t *Named) Obj() *TypeName {
return t.orig.obj // for non-instances this is the same as t.obj
}
// _Orig returns the original generic type an instantiated type is derived from.
// If t is not an instantiated type, the result is t.
func (t *Named) _Orig() *Named { return t.orig }
// Origin returns the parameterized type from which the named type t is
// instantiated. If t is not an instantiated type, the result is t.
func (t *Named) Origin() *Named { return t.orig }
// TODO(gri) Come up with a better representation and API to distinguish
// between parameterized instantiated and non-instantiated types.