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1 | static <A, B> AutoCloseable tempPut(Map<A, B> map, A key, B value) {
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2 | if (map != null) {
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3 | bool wasContained = map.containsKey(key); |
4 | B old = map.put(key, value); |
5 | ret -> { if (wasContained) map.put(key, old); else map.remove(key); };
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6 | } |
7 | null; |
8 | } |
Began life as a copy of #1034293
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| Snippet ID: | #1035147 |
| Snippet name: | tempPut - put into map with undo as AutoCloseable |
| Eternal ID of this version: | #1035147/3 |
| Text MD5: | 8bb240d9af0ad61e95c67e206597f8e6 |
| Transpilation MD5: | 405caf430094d20fce13c3cc7437f098 |
| Author: | stefan |
| Category: | javax |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2022-04-01 20:46:59 |
| Source code size: | 266 bytes / 8 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 76 / 111 |
| Version history: | 2 change(s) |
| Referenced in: | [show references] |