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< > BotCompany Repo | #1002108 - empty - extended synonym of isEmpty

JavaX fragment (include)

static boolean empty(Collection c) { ret c == null || c.isEmpty(); }
static boolean empty(CharSequence s) { ret s == null || s.length() == 0; }
static boolean empty(Map map) { ret map == null || map.isEmpty(); }
static boolean empty(O[] o) { ret o == null || o.length == 0; }
static boolean empty(O o) {
  if (o instanceof Collection) ret empty((Collection) o);
  if (o instanceof S) ret empty((S) o);
  if (o instanceof Map) ret empty((Map) o);
  if (o instanceof O[]) ret empty((O[]) o);
  if (o instanceof byte[]) ret empty((byte[]) o);
  if (o == null) true;
  throw fail("unknown type for 'empty': " + getType(o));
}

sbool empty(Iterator i) { ret i == null || !i.hasNext(); }

static bool empty(double[] a) { ret a == null || a.length == 0; }
static bool empty(float[] a) { ret a == null || a.length == 0; }
static bool empty(int[] a) { ret a == null || a.length == 0; }
static bool empty(long[] a) { ret a == null || a.length == 0; }
static bool empty(byte[] a) { ret a == null || a.length == 0; }
static bool empty(short[] a) { ret a == null || a.length == 0; }

ifclass MultiSet
static bool empty(MultiSet ms) { ret ms == null || ms.isEmpty(); }
endif

ifclass MultiMap
static bool empty(MultiMap mm) { ret mm == null || mm.isEmpty(); }
endif

sbool empty(File f) { ret getFileSize(f) == 0; }

Author comment

Began life as a copy of #1002022

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Snippet ID: #1002108
Snippet name: empty - extended synonym of isEmpty
Eternal ID of this version: #1002108/13
Text MD5: f7e697edae5e52eee7b21ed43d7a56d0
Author: stefan
Category: javax
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2020-03-30 14:48:18
Source code size: 1332 bytes / 32 lines
Pitched / IR pitched: No / No
Views / Downloads: 644 / 5362
Version history: 12 change(s)
Referenced in: [show references]

Formerly at http://tinybrain.de/1002108 & http://1002108.tinybrain.de