| 47 | } |
| 48 | |
| 49 | func addToHash(h uint64, in interface{}) uint64 { |
| 50 | switch v := in.(type) { |
| 51 | case uint64: |
| 52 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), v) |
| 53 | case uint32: |
| 54 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 55 | case uint16: |
| 56 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 57 | case uint8: |
| 58 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 59 | case uint: |
| 60 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 61 | case int64: |
| 62 | if v < 0 { |
| 63 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeSignedInt), uint64(-v)) |
| 64 | } else { |
| 65 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 66 | } |
| 67 | case int32: |
| 68 | if v < 0 { |
| 69 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeSignedInt), uint64(-v)) |
| 70 | } else { |
| 71 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 72 | } |
| 73 | case int16: |
| 74 | if v < 0 { |
| 75 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeSignedInt), uint64(-v)) |
| 76 | } else { |
| 77 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 78 | } |
| 79 | case int8: |
| 80 | if v < 0 { |
| 81 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeSignedInt), uint64(-v)) |
| 82 | } else { |
| 83 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 84 | } |
| 85 | case int: |
| 86 | if v < 0 { |
| 87 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeSignedInt), uint64(-v)) |
| 88 | } else { |
| 89 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeInt), uint64(v)) |
| 90 | } |
| 91 | case bool: |
| 92 | if v { |
| 93 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeBool), 1) |
| 94 | } else { |
| 95 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeBool), 2) |
| 96 | } |
| 97 | case string: |
| 98 | return fnv1a.AddString64(fnv1a.AddUint64(h, hashTypeString), v) |
| 99 | case Hashable: |
| 100 | if in == nil { |
| 101 | panic(fmt.Sprintf("could not hash nil element %T", in)) |
| 102 | } |
| 103 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeHashable), v.Hash()) |
| 104 | case nil: |
| 105 | return fnv1a.AddUint64(fnv1a.AddUint64(h, hashTypeNil), 0) |
| 106 | default: |