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< > BotCompany Repo | #1035360 // mapPutStrictlyOrFail - fail if value cannot be put strictly (i.e. not overwriting anything)

JavaX fragment (include) [tags: use-pretranspiled]

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static <A, B> AutoCloseable mapPutStrictlyOrFail(Map<A, B> map, A key, B value) {
  if (!(map != null && key != null && value != null)) null;
  B old = map.get(key);
  if (old == null) {
    map.put(key, value);
    ret -> map.remove(old);
  }
  if (eq(old, value)) null;
  fail("Can't overwrite key " + key + " (old value: " + old + ", new value: " + value);
}

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Began life as a copy of #1035359

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Travelled to 2 computer(s): mowyntqkapby, mqqgnosmbjvj

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Snippet ID: #1035360
Snippet name: mapPutStrictlyOrFail - fail if value cannot be put strictly (i.e. not overwriting anything)
Eternal ID of this version: #1035360/5
Text MD5: 6497a87a2c87fc6cff38f5f04bb6d200
Transpilation MD5: 72c7cf1558ee9e7e380378f1b4cd00e6
Author: stefan
Category: javax
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2022-05-02 01:42:05
Source code size: 370 bytes / 10 lines
Pitched / IR pitched: No / No
Views / Downloads: 132 / 192
Version history: 4 change(s)
Referenced in: #1006654 - Standard functions list 2 (LIVE, continuation of #761)
#1035362 - tempMapPutStrictlyOrFail - fail if value cannot be put strictly (i.e. not overwriting anything)