From: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Date: Tue, 27 Apr 2021 01:30:41 +0000 (+0700)
Subject: cmd/compile: add more doc for Name.Defn
X-Git-Tag: go1.17beta1~440
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=434e12f772;p=gostls13.git

cmd/compile: add more doc for Name.Defn

As discussion in CL 313289, Name.Defn is also be set for variables
declared in type switch, or name function.

Change-Id: I3deb3d79fca269356e4432b77df7c7720a523674
Reviewed-on: https://go-review.googlesource.com/c/go/+/313889
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
---

diff --git a/src/cmd/compile/internal/ir/name.go b/src/cmd/compile/internal/ir/name.go
index 5697213eac..b6c68bc5e0 100644
--- a/src/cmd/compile/internal/ir/name.go
+++ b/src/cmd/compile/internal/ir/name.go
@@ -49,7 +49,9 @@ type Name struct {
 
 	PkgName *PkgName // real package for import . names
 	// For a local variable (not param) or extern, the initializing assignment (OAS or OAS2).
-	// For a closure var, the ONAME node of the outer captured variable
+	// For a closure var, the ONAME node of the outer captured variable.
+	// For the case-local variables of a type switch, the type switch guard (OTYPESW).
+	// For the name of a function, points to corresponding Func node.
 	Defn Node
 
 	// The function, method, or closure in which local variable or param is declared.