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-rw-r--r--cmp/internal/value/zero.go48
1 files changed, 0 insertions, 48 deletions
diff --git a/cmp/internal/value/zero.go b/cmp/internal/value/zero.go
deleted file mode 100644
index 9147a29..0000000
--- a/cmp/internal/value/zero.go
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright 2017, The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package value
-
-import (
- "math"
- "reflect"
-)
-
-// IsZero reports whether v is the zero value.
-// This does not rely on Interface and so can be used on unexported fields.
-func IsZero(v reflect.Value) bool {
- switch v.Kind() {
- case reflect.Bool:
- return v.Bool() == false
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- return v.Int() == 0
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- return v.Uint() == 0
- case reflect.Float32, reflect.Float64:
- return math.Float64bits(v.Float()) == 0
- case reflect.Complex64, reflect.Complex128:
- return math.Float64bits(real(v.Complex())) == 0 && math.Float64bits(imag(v.Complex())) == 0
- case reflect.String:
- return v.String() == ""
- case reflect.UnsafePointer:
- return v.Pointer() == 0
- case reflect.Chan, reflect.Func, reflect.Interface, reflect.Ptr, reflect.Map, reflect.Slice:
- return v.IsNil()
- case reflect.Array:
- for i := 0; i < v.Len(); i++ {
- if !IsZero(v.Index(i)) {
- return false
- }
- }
- return true
- case reflect.Struct:
- for i := 0; i < v.NumField(); i++ {
- if !IsZero(v.Field(i)) {
- return false
- }
- }
- return true
- }
- return false
-}