1 files changed, 102 insertions, 0 deletions
diff --git a/javax/lang/model/SourceVersion.java b/javax/lang/model/SourceVersion.java
new file mode 100644
index 000000000..89d88d9fa
--- /dev/null
+++ b/javax/lang/model/SourceVersion.java
@@ -0,0 +1,102 @@
+/* SourceVersion.java -- Source versions of the Java programming language.
+   Copyright (C) 2012  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.lang.model;
+
+/**
+ * Source versions of the Java programming language.
+ * Note that this will be extended with additional
+ * constants to represent new versions.
+ *
+ * @since 1.6
+ */
+public enum SourceVersion
+{
+  /** The original version of Java. */ RELEASE_0,
+  /** Java 1.1 */ RELEASE_1,
+  /** Java 1.2 */ RELEASE_2,
+  /** Java 1.3 */ RELEASE_3,
+  /** Java 1.4 */ RELEASE_4,
+  /** Java 5 */ RELEASE_5,
+  /** Java 6 */ RELEASE_6;
+
+  /**
+   * Returns true if {@code name} is a syntactically valid identifier or
+   * keyword in the latest version of the language.  That is, this
+   * method returns true if the {@link Character#isJavaIdentifierStart(int)}
+   * holds for the first character and {@link Character#isJavaIdentifierPart(int)}
+   * for the rest.  This matches all regular identifiers, keywords
+   * and the literals {@code true}, {@code false} and {@code null}.
+   *
+   * @param name the name to check.
+   * @return true if {@code name} represents a valid identifier, keyword or literal.
+   */
+  public static boolean isIdentifier(CharSequence name)
+  {
+    int size = name.length();
+    if (size > 0 && Character.isJavaIdentifierStart(name.charAt(0)))
+      {
+	for (int a = 1; a < size; ++a)
+	  if (!Character.isJavaIdentifierPart(name.charAt(a)))
+	    return false;
+	return true;
+      }
+    return false;
+  }
+
+  /**
+   * Returns the latest source version that can be modeled.
+   *
+   * @return the latest modelable source version.
+   */
+  public static SourceVersion latest()
+  {
+    return RELEASE_6;
+  }
+
+  /**
+   * Returns the latest source version fully supported
+   * by GNU Classpath.  Must be at least {@code RELEASE_5}.
+   *
+   * @return the latest supported source version.
+   */
+  public static SourceVersion latestSupported()
+  {
+    return RELEASE_5;
+  }
+
+}