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reflect: enhance docs for IsZero and IsValid

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Make it clear that IsValid checks that we have valid
reflect.Value and not the value of `v`

fixes #34152

Change-Id: Ib3d359eeb3a82bf733b9ed17c777fc4c143bc29c
Reviewed-on: https://go-review.googlesource.com/c/go/+/193841
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Marko Kungla 2019-09-07 12:07:08 +03:00 committed by Ian Lance Taylor
parent b9704872d1
commit a5026af57c
2 changed files with 2 additions and 2 deletions
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2
src/internal/reflectlite/value.go
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@ -305,7 +305,7 @@ func (v Value) IsNil() bool {
// IsValid reports whether v represents a value.
// It returns false if v is the zero Value.
// If IsValid returns false, all other methods except String panic.
// Most functions and methods never return an invalid value.
// Most functions and methods never return an invalid Value.
// If one does, its documentation states the conditions explicitly.
func (v Value) IsValid() bool {
return v.flag != 0

2
src/reflect/value.go
View File

@ -1076,7 +1076,7 @@ func (v Value) IsNil() bool {
// IsValid reports whether v represents a value.
// It returns false if v is the zero Value.
// If IsValid returns false, all other methods except String panic.
// Most functions and methods never return an invalid value.
// Most functions and methods never return an invalid Value.
// If one does, its documentation states the conditions explicitly.
func (v Value) IsValid() bool {
return v.flag != 0