1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// run
// Copyright 2019 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 main
import "reflect"
func main() {}
func typ(x interface{}) reflect.Type { return reflect.ValueOf(x).Type() }
var byteType = typ((byte)(0))
var ptrType = typ((*byte)(nil))
// Arrays of pointers. There are two size thresholds.
// Bit masks are chunked in groups of 120 pointers.
// Array types with >16384 pointers have a GC program instead of a bitmask.
var smallPtrType = reflect.ArrayOf(100, ptrType)
var mediumPtrType = reflect.ArrayOf(1000, ptrType)
var bigPtrType = reflect.ArrayOf(16385, ptrType)
var x0 = reflect.New(reflect.StructOf([]reflect.StructField{
{Name: "F1", Type: byteType},
{Name: "F2", Type: bigPtrType},
}))
var x1 = reflect.New(reflect.StructOf([]reflect.StructField{
{Name: "F1", Type: smallPtrType},
{Name: "F2", Type: bigPtrType},
}))
var x2 = reflect.New(reflect.StructOf([]reflect.StructField{
{Name: "F1", Type: mediumPtrType},
{Name: "F2", Type: bigPtrType},
}))
var x3 = reflect.New(reflect.StructOf([]reflect.StructField{
{Name: "F1", Type: ptrType},
{Name: "F2", Type: byteType},
{Name: "F3", Type: bigPtrType},
}))
var x4 = reflect.New(reflect.StructOf([]reflect.StructField{
{Name: "F1", Type: ptrType},
{Name: "F2", Type: smallPtrType},
{Name: "F3", Type: bigPtrType},
}))
var x5 = reflect.New(reflect.StructOf([]reflect.StructField{
{Name: "F1", Type: ptrType},
{Name: "F2", Type: mediumPtrType},
{Name: "F3", Type: bigPtrType},
}))
|
