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1 | static <A, B> Map<A, B> cloneMap(Map<A, B> map) {
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2 | if (map == null) ret new HashMap; |
3 | // assume mutex is equal to map |
4 | synchronized(map) {
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5 | ret map instanceof TreeMap ? new TreeMap((TreeMap) map) // copies comparator |
6 | : map instanceof LinkedHashMap ? new LinkedHashMap(map) |
7 | : new HashMap(map); |
8 | } |
9 | } |
10 | |
11 | static <A, B> L<B> cloneMap(Iterable<A> l, IF1<A, B> f) {
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12 | L x = emptyList(l); |
13 | if (l != null) for (A o : cloneList(l)) |
14 | x.add(f.get(o)); |
15 | ret x; |
16 | } |
Began life as a copy of #1001634
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| Snippet ID: | #1002559 |
| Snippet name: | cloneMap - safely clone a map; null => HashMap. also: map over cloned list |
| Eternal ID of this version: | #1002559/11 |
| Text MD5: | dd87529cba1e7a198d1c2d486fade481 |
| Transpilation MD5: | ad338300e25fbd334ce422f2f24d2ba8 |
| Author: | stefan |
| Category: | |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2020-01-15 14:28:14 |
| Source code size: | 486 bytes / 16 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 930 / 1446 |
| Version history: | 10 change(s) |
| Referenced in: | [show references] |