|
| 1 | +package maxminddb |
| 2 | + |
| 3 | +import ( |
| 4 | + "math/big" |
| 5 | + "net" |
| 6 | + "testing" |
| 7 | + |
| 8 | + "github.com/stretchr/testify/require" |
| 9 | +) |
| 10 | + |
| 11 | +func TestDecodingToDeserializer(t *testing.T) { |
| 12 | + reader, err := Open(testFile("MaxMind-DB-test-decoder.mmdb")) |
| 13 | + require.NoError(t, err, "unexpected error while opening database: %v", err) |
| 14 | + |
| 15 | + dser := testDeserializer{} |
| 16 | + err = reader.Lookup(net.ParseIP("::1.1.1.0"), &dser) |
| 17 | + require.NoError(t, err, "unexpected error while doing lookup: %v", err) |
| 18 | + |
| 19 | + checkDecodingToInterface(t, dser.rv) |
| 20 | +} |
| 21 | + |
| 22 | +type stackValue struct { |
| 23 | + value interface{} |
| 24 | + curNum int |
| 25 | +} |
| 26 | + |
| 27 | +type testDeserializer struct { |
| 28 | + stack []*stackValue |
| 29 | + rv interface{} |
| 30 | + key *string |
| 31 | +} |
| 32 | + |
| 33 | +func (d *testDeserializer) ShouldSkip(offset uintptr) (bool, error) { |
| 34 | + return false, nil |
| 35 | +} |
| 36 | + |
| 37 | +func (d *testDeserializer) StartSlice(size uint) error { |
| 38 | + return d.add(make([]interface{}, size)) |
| 39 | +} |
| 40 | + |
| 41 | +func (d *testDeserializer) StartMap(size uint) error { |
| 42 | + return d.add(map[string]interface{}{}) |
| 43 | +} |
| 44 | + |
| 45 | +func (d *testDeserializer) End() error { |
| 46 | + d.stack = d.stack[:len(d.stack)-1] |
| 47 | + return nil |
| 48 | +} |
| 49 | + |
| 50 | +func (d *testDeserializer) String(v string) error { |
| 51 | + return d.add(v) |
| 52 | +} |
| 53 | + |
| 54 | +func (d *testDeserializer) Float64(v float64) error { |
| 55 | + return d.add(v) |
| 56 | +} |
| 57 | + |
| 58 | +func (d *testDeserializer) Bytes(v []byte) error { |
| 59 | + return d.add(v) |
| 60 | +} |
| 61 | + |
| 62 | +func (d *testDeserializer) Uint16(v uint16) error { |
| 63 | + return d.add(uint64(v)) |
| 64 | +} |
| 65 | + |
| 66 | +func (d *testDeserializer) Uint32(v uint32) error { |
| 67 | + return d.add(uint64(v)) |
| 68 | +} |
| 69 | + |
| 70 | +func (d *testDeserializer) Int32(v int32) error { |
| 71 | + return d.add(int(v)) |
| 72 | +} |
| 73 | + |
| 74 | +func (d *testDeserializer) Uint64(v uint64) error { |
| 75 | + return d.add(v) |
| 76 | +} |
| 77 | + |
| 78 | +func (d *testDeserializer) Uint128(v *big.Int) error { |
| 79 | + return d.add(v) |
| 80 | +} |
| 81 | + |
| 82 | +func (d *testDeserializer) Bool(v bool) error { |
| 83 | + return d.add(v) |
| 84 | +} |
| 85 | + |
| 86 | +func (d *testDeserializer) Float32(v float32) error { |
| 87 | + return d.add(v) |
| 88 | +} |
| 89 | + |
| 90 | +func (d *testDeserializer) add(v interface{}) error { |
| 91 | + if len(d.stack) == 0 { |
| 92 | + d.rv = v |
| 93 | + } else { |
| 94 | + top := d.stack[len(d.stack)-1] |
| 95 | + switch parent := top.value.(type) { |
| 96 | + case map[string]interface{}: |
| 97 | + if d.key == nil { |
| 98 | + key := v.(string) |
| 99 | + d.key = &key |
| 100 | + } else { |
| 101 | + parent[*d.key] = v |
| 102 | + d.key = nil |
| 103 | + } |
| 104 | + |
| 105 | + case []interface{}: |
| 106 | + parent[top.curNum] = v |
| 107 | + top.curNum++ |
| 108 | + default: |
| 109 | + } |
| 110 | + } |
| 111 | + |
| 112 | + switch v := v.(type) { |
| 113 | + case map[string]interface{}, []interface{}: |
| 114 | + d.stack = append(d.stack, &stackValue{value: v}) |
| 115 | + default: |
| 116 | + } |
| 117 | + |
| 118 | + return nil |
| 119 | +} |
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