| 1 | // +build ignore |
|---|---|
| 2 | |
| 3 | package main |
| 4 | |
| 5 | import "reflect" |
| 6 | |
| 7 | type A struct { |
| 8 | f *int |
| 9 | g interface{} |
| 10 | h bool |
| 11 | } |
| 12 | |
| 13 | var dyn string |
| 14 | |
| 15 | func reflectTypeFieldByName() { |
| 16 | f, _ := reflect.TypeOf(A{}).FieldByName("f") |
| 17 | print(f.Type) // @pointsto *int |
| 18 | |
| 19 | g, _ := reflect.TypeOf(A{}).FieldByName("g") |
| 20 | print(g.Type) // @pointsto interface{} |
| 21 | print(reflect.Zero(g.Type)) // @pointsto <alloc in reflect.Zero> |
| 22 | print(reflect.Zero(g.Type)) // @types interface{} |
| 23 | |
| 24 | print(reflect.Zero(g.Type).Interface()) // @pointsto |
| 25 | print(reflect.Zero(g.Type).Interface()) // @types |
| 26 | |
| 27 | h, _ := reflect.TypeOf(A{}).FieldByName("h") |
| 28 | print(h.Type) // @pointsto bool |
| 29 | |
| 30 | missing, _ := reflect.TypeOf(A{}).FieldByName("missing") |
| 31 | print(missing.Type) // @pointsto |
| 32 | |
| 33 | dyn, _ := reflect.TypeOf(A{}).FieldByName(dyn) |
| 34 | print(dyn.Type) // @pointsto *int | bool | interface{} |
| 35 | } |
| 36 | |
| 37 | func reflectTypeField() { |
| 38 | fld := reflect.TypeOf(A{}).Field(0) |
| 39 | print(fld.Type) // @pointsto *int | bool | interface{} |
| 40 | } |
| 41 | |
| 42 | func main() { |
| 43 | reflectTypeFieldByName() |
| 44 | reflectTypeField() |
| 45 | } |
| 46 |
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