| 33 | } |
| 34 | |
| 35 | func Example_struct() { |
| 36 | doc := ExampleDoc{ |
| 37 | PromotedDoc: PromotedDoc{ |
| 38 | C: "c", |
| 39 | }, |
| 40 | Promoted: EmbeddedDoc{ |
| 41 | B: "promoted", |
| 42 | }, |
| 43 | A: "a", |
| 44 | Ignored: "ignored", |
| 45 | unexported: "unexported", |
| 46 | } |
| 47 | |
| 48 | { |
| 49 | // tagged simple field |
| 50 | pointerA, _ := jsonpointer.New("/propA") |
| 51 | a, _, err := pointerA.Get(doc) |
| 52 | if err != nil { |
| 53 | fmt.Println(err) |
| 54 | return |
| 55 | } |
| 56 | fmt.Printf("a: %v\n", a) |
| 57 | } |
| 58 | |
| 59 | { |
| 60 | // tagged struct field is resolved |
| 61 | pointerB, _ := jsonpointer.New("/promoted/propB") |
| 62 | b, _, err := pointerB.Get(doc) |
| 63 | if err != nil { |
| 64 | fmt.Println(err) |
| 65 | return |
| 66 | } |
| 67 | fmt.Printf("b: %v\n", b) |
| 68 | } |
| 69 | |
| 70 | { |
| 71 | // tagged embedded field is resolved |
| 72 | pointerC, _ := jsonpointer.New("/propC") |
| 73 | c, _, err := pointerC.Get(doc) |
| 74 | if err != nil { |
| 75 | fmt.Println(err) |
| 76 | return |
| 77 | } |
| 78 | fmt.Printf("c: %v\n", c) |
| 79 | } |
| 80 | |
| 81 | { |
| 82 | // exlicitly ignored by JSON tag. |
| 83 | pointerI, _ := jsonpointer.New("/ignored") |
| 84 | _, _, err := pointerI.Get(doc) |
| 85 | fmt.Printf("ignored: %v\n", err) |
| 86 | } |
| 87 | |
| 88 | { |
| 89 | // unexported field is ignored: use [JSONPointable] to alter this behavior. |
| 90 | pointerX, _ := jsonpointer.New("/unexported") |
| 91 | _, _, err := pointerX.Get(doc) |
| 92 | fmt.Printf("unexported: %v\n", err) |