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authorEvan Prodromou <evan@status.net>2009-12-22 16:44:19 -0800
committerEvan Prodromou <evan@status.net>2009-12-22 16:44:19 -0800
commitf6bf9529805cd58fdd1671dd9b133bde05e8ae87 (patch)
treecf272bd1105da48f016b635db4d9c34810adcbda /lib/curry.php
parentf987273f118a12d443b6789c2ab59d7a4b01f678 (diff)
parent30c2e2ce83282f0bc268153d7ec465fbb5cf00ca (diff)
Merge branch 'testing'
Diffstat (limited to 'lib/curry.php')
-rw-r--r--lib/curry.php36
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/curry.php b/lib/curry.php
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+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * PHP 5.3 implementation of function currying, using native closures.
+ * On 5.2 and lower we use the fallback implementation in util.php
+ *
+ * @param callback $fn
+ * @param ... any remaining arguments will be appended to call-time params
+ * @return callback
+ */
+function curry($fn) {
+ $extra_args = func_get_args();
+ array_shift($extra_args);
+ return function() use ($fn, $extra_args) {
+ $args = func_get_args();
+ return call_user_func_array($fn,
+ array_merge($args, $extra_args));
+ };
+}