support for decoding struct types

[mewmew]

It seems the current version of pkg/json does not yet support decoding into struct tyoes. As pkg/josn is still in development, the issue is probably known. This issue is meant to track the progress of implementing support for decoding into struct types.

$ go test
--- FAIL: TestDecodeIntoStruct (0.00s)
    foo_test.go:29: unable to decode into struct; decodeValue: unhandled type: struct
FAIL
exit status 1
FAIL	github.com/pkg/json	0.276s

The following test case passes when using encoding/json but fails with unable to decode into struct; decodeValue: unhandled type: struct when using github.com/pkg/json.

package json

import (
	//"encoding/json"
	"reflect"
	"strings"
	"testing"
)

func TestDecodeIntoStruct(t *testing.T) {
	type Foo struct {
		X int
		Y int
	}
	golden := []struct {
		want Foo
		in   string
	}{
		{
			want: Foo{X: 1, Y: 2},
			in:   `{"X": 1, "Y": 2}`,
		},
	}
	for _, g := range golden {
		r := strings.NewReader(g.in)
		dec := NewDecoder(r)
		got := Foo{}
		if err := dec.Decode(&got); err != nil {
			t.Errorf("unable to decode into struct; %v", err)
			continue
		}
		if g.want != got {
			t.Errorf("decoded value mismatch; expected %#v, got %#v", g.want, got)
		}
	}
}

func TestDecodeIntoMap(t *testing.T) {
	type Foo map[string]int
	golden := []struct {
		want Foo
		in   string
	}{
		{
			want: Foo{"X": 1, "Y": 2},
			in:   `{"X": 1, "Y": 2}`,
		},
	}
	for _, g := range golden {
		r := strings.NewReader(g.in)
		dec := NewDecoder(r)
		got := Foo{}
		if err := dec.Decode(&got); err != nil {
			t.Errorf("unable to decode into struct; %v", err)
			continue
		}
		if !reflect.DeepEqual(g.want, got) {
			t.Errorf("decoded value mismatch; expected %#v, got %#v", g.want, got)
		}
	}
}

Cheers,
Robin