Changed from a threaded pool to a thread-local pool, abstracted out token assignment...

[cycript.git] / Local.hpp

diff --git a/Local.hpp b/Local.hpp
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+/* Cycript - Inlining/Optimizing JavaScript Compiler
+ * Copyright (C) 2009  Jay Freeman (saurik)
+*/
+
+/* Modified BSD License {{{ */
+/*
+ *        Redistribution and use in source and binary
+ * forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the
+ *    above copyright notice, this list of conditions
+ *    and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the
+ *    above copyright notice, this list of conditions
+ *    and the following disclaimer in the documentation
+ *    and/or other materials provided with the
+ *    distribution.
+ * 3. The name of the author may not be used to endorse
+ *    or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/* }}} */
+
+#ifndef CYLOCAL_HPP
+#define CYLOCAL_HPP
+
+template <typename Type_>
+struct CYLocal {
+    Type_ last_;
+
+    CYLocal(Type_ next) {
+        Type_ &top(Top());
+        last_ = top;
+        top = next;
+    }
+
+    ~CYLocal() {
+        Top() = last_;
+    }
+
+    static Type_ &Top() {
+        static __thread Type_ top;
+        return top;
+    }
+};
+
+#endif/*CYLOCAL_HPP*/