go/src/cmd/compile/internal/gc/sizeof_test.go
Russ Cox 93369001c7 cmd/compile: delete Func.Outer
This was just storage for a linked list.

Change-Id: I850e8db1e1f5e72410f5c904be9409179b56a94a
Reviewed-on: https://go-review.googlesource.com/23484
Reviewed-by: David Chase <drchase@google.com>
2016-05-27 15:33:01 +00:00

56 lines
1.2 KiB
Go

// Copyright 2016 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.
// +build !nacl
package gc
import (
"reflect"
"testing"
"unsafe"
)
// Assert that the size of important structures do not change unexpectedly.
func TestSizeof(t *testing.T) {
const _64bit = unsafe.Sizeof(uintptr(0)) == 8
var tests = []struct {
val interface{} // type as a value
_32bit uintptr // size on 32bit platforms
_64bit uintptr // size on 64bit platforms
}{
{Flow{}, 52, 88},
{Func{}, 92, 160},
{Name{}, 52, 80},
{Node{}, 92, 144},
{Sym{}, 60, 112},
{Type{}, 52, 80},
{MapType{}, 20, 40},
{ForwardType{}, 16, 32},
{FuncType{}, 28, 48},
{StructType{}, 12, 24},
{InterType{}, 4, 8},
{ChanType{}, 8, 16},
{ArrayType{}, 16, 24},
{InterMethType{}, 4, 8},
{DDDFieldType{}, 4, 8},
{FuncArgsType{}, 4, 8},
{ChanArgsType{}, 4, 8},
{PtrType{}, 4, 8},
{SliceType{}, 4, 8},
}
for _, tt := range tests {
want := tt._32bit
if _64bit {
want = tt._64bit
}
got := reflect.TypeOf(tt.val).Size()
if want != got {
t.Errorf("unsafe.Sizeof(%T) = %d, want %d", tt.val, got, want)
}
}
}