| Don Newton | 379ae25 | 2019-04-01 12:17:06 -0400 | [diff] [blame^] | 1 | // Copyright (C) MongoDB, Inc. 2017-present. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 4 | // not use this file except in compliance with the License. You may obtain |
| 5 | // a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 |
| 6 | |
| 7 | // Package bsontype is a utility package that contains types for each BSON type and the |
| 8 | // a stringifier for the Type to enable easier debugging when working with BSON. |
| 9 | package bsontype |
| 10 | |
| 11 | // These constants uniquely refer to each BSON type. |
| 12 | const ( |
| 13 | Double Type = 0x01 |
| 14 | String Type = 0x02 |
| 15 | EmbeddedDocument Type = 0x03 |
| 16 | Array Type = 0x04 |
| 17 | Binary Type = 0x05 |
| 18 | Undefined Type = 0x06 |
| 19 | ObjectID Type = 0x07 |
| 20 | Boolean Type = 0x08 |
| 21 | DateTime Type = 0x09 |
| 22 | Null Type = 0x0A |
| 23 | Regex Type = 0x0B |
| 24 | DBPointer Type = 0x0C |
| 25 | JavaScript Type = 0x0D |
| 26 | Symbol Type = 0x0E |
| 27 | CodeWithScope Type = 0x0F |
| 28 | Int32 Type = 0x10 |
| 29 | Timestamp Type = 0x11 |
| 30 | Int64 Type = 0x12 |
| 31 | Decimal128 Type = 0x13 |
| 32 | MinKey Type = 0xFF |
| 33 | MaxKey Type = 0x7F |
| 34 | ) |
| 35 | |
| 36 | // Type represents a BSON type. |
| 37 | type Type byte |
| 38 | |
| 39 | // String returns the string representation of the BSON type's name. |
| 40 | func (bt Type) String() string { |
| 41 | switch bt { |
| 42 | case '\x01': |
| 43 | return "double" |
| 44 | case '\x02': |
| 45 | return "string" |
| 46 | case '\x03': |
| 47 | return "embedded document" |
| 48 | case '\x04': |
| 49 | return "array" |
| 50 | case '\x05': |
| 51 | return "binary" |
| 52 | case '\x06': |
| 53 | return "undefined" |
| 54 | case '\x07': |
| 55 | return "objectID" |
| 56 | case '\x08': |
| 57 | return "boolean" |
| 58 | case '\x09': |
| 59 | return "UTC datetime" |
| 60 | case '\x0A': |
| 61 | return "null" |
| 62 | case '\x0B': |
| 63 | return "regex" |
| 64 | case '\x0C': |
| 65 | return "dbPointer" |
| 66 | case '\x0D': |
| 67 | return "javascript" |
| 68 | case '\x0E': |
| 69 | return "symbol" |
| 70 | case '\x0F': |
| 71 | return "code with scope" |
| 72 | case '\x10': |
| 73 | return "32-bit integer" |
| 74 | case '\x11': |
| 75 | return "timestamp" |
| 76 | case '\x12': |
| 77 | return "64-bit integer" |
| 78 | case '\x13': |
| 79 | return "128-bit decimal" |
| 80 | case '\xFF': |
| 81 | return "min key" |
| 82 | case '\x7F': |
| 83 | return "max key" |
| 84 | default: |
| 85 | return "invalid" |
| 86 | } |
| 87 | } |