cloneTreeMap - safely clone a map as TreeMap. generously makes a new one if passed map is null [1002948]

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LINES

< > BotCompany Repo | #1002948 // cloneTreeMap - safely clone a map as TreeMap. generously makes a new one if passed map is null

JavaX fragment (include)

static <A, B> Map<A, B> cloneTreeMap(Map<A, B> map) {
  // assume mutex is equal to collection, which will be true unless you explicitly pass a mutex to synchronizedList() which no one ever does.
  if (map == null) ret new TreeMap;
  else synchronized(map) {
    ret new TreeMap(map);
  }
}

Author comment

Began life as a copy of #1002559

download show line numbers debug dex old transpilations

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Snippet ID:	#1002948
Snippet name:	cloneTreeMap - safely clone a map as TreeMap. generously makes a new one if passed map is null
Eternal ID of this version:	#1002948/1
Text MD5:	899dde1e3ad68e732f36da7d449f9689
Author:	stefan
Category:
Type:	JavaX fragment (include)
Public (visible to everyone):	Yes
Archived (hidden from active list):	No
Created/modified:	2016-07-30 17:04:29
Source code size:	296 bytes / 7 lines
Pitched / IR pitched:	No / No
Views / Downloads:	652 / 623
Referenced in:	[show references]

1	static <A, B> Map<A, B> cloneTreeMap(Map<A, B> map) {
2	// assume mutex is equal to collection, which will be true unless you explicitly pass a mutex to synchronizedList() which no one ever does.
3	if (map == null) ret new TreeMap;
4	else synchronized(map) {
5	ret new TreeMap(map);
6	}
7	}