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< > BotCompany Repo | #1035359 // 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> void mapPutStrictlyOrFail(Map<A, B> map, A key, B value) {
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  if (!(map != null && key != null && value != null)) ret;
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  B old = map.get(key);
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  if (old == null) { map.put(key, value); ret; }
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  if (eq(old, value)) ret;
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  fail("Can't overwrite key " + key + " (old value: " + old + ", new value: " + value);
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}

Author comment

Began life as a copy of #1012146

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Travelled to 2 computer(s): mowyntqkapby, mqqgnosmbjvj

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Snippet ID: #1035359
Snippet name: mapPutStrictlyOrFail - fail if value cannot be put strictly (i.e. not overwriting anything)
Eternal ID of this version: #1035359/1
Text MD5: 43b5ecc498e3c70e4fb85c44e7d43de3
Transpilation MD5: 97a10ac489059ec9235756181286acf5
Author: stefan
Category: javax
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2022-05-02 01:30:55
Source code size: 327 bytes / 7 lines
Pitched / IR pitched: No / No
Views / Downloads: 107 / 151
Referenced in: [show references]