go sizeof_test 源码
golang sizeof_test 代码
文件路径：/src/go/types/sizeof_test.go
// Copyright 2021 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 types
import (
"reflect"
"testing"
)
// Signal size changes of important structures.
func TestSizeof(t *testing.T) {
const _64bit = ^uint(0)>>32 != 0
var tests = []struct {
val any // type as a value
_32bit uintptr // size on 32bit platforms
_64bit uintptr // size on 64bit platforms
}{
// Types
{Basic{}, 16, 32},
{Array{}, 16, 24},
{Slice{}, 8, 16},
{Struct{}, 24, 48},
{Pointer{}, 8, 16},
{Tuple{}, 12, 24},
{Signature{}, 28, 56},
{Union{}, 12, 24},
{Interface{}, 40, 80},
{Map{}, 16, 32},
{Chan{}, 12, 24},
{Named{}, 60, 112},
{TypeParam{}, 28, 48},
{term{}, 12, 24},
// Objects
{PkgName{}, 48, 88},
{Const{}, 48, 88},
{TypeName{}, 40, 72},
{Var{}, 48, 88},
{Func{}, 48, 88},
{Label{}, 44, 80},
{Builtin{}, 44, 80},
{Nil{}, 40, 72},
// Misc
{Scope{}, 44, 88},
{Package{}, 40, 80},
{_TypeSet{}, 28, 56},
}
for _, test := range tests {
got := reflect.TypeOf(test.val).Size()
want := test._32bit
if _64bit {
want = test._64bit
}
if got != want {
t.Errorf("unsafe.Sizeof(%T) = %d, want %d", test.val, got, want)
}
}
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦