--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/share/classes/com/sun/tools/javac/code/Source.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,174 @@
+/*
+ * Copyright 2002-2006 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package com.sun.tools.javac.code;
+
+import com.sun.tools.javac.util.*;
+import com.sun.tools.javac.jvm.Target;
+import javax.lang.model.SourceVersion;
+import static javax.lang.model.SourceVersion.*;
+import java.util.*;
+
+/** The source language version accepted.
+ *
+ * <p><b>This is NOT part of any API supported by Sun Microsystems. If
+ * you write code that depends on this, you do so at your own risk.
+ * This code and its internal interfaces are subject to change or
+ * deletion without notice.</b>
+ */
+public enum Source {
+ /** 1.0 had no inner classes, and so could not pass the JCK. */
+ // public static final Source JDK1_0 = new Source("1.0");
+
+ /** 1.1 did not have strictfp, and so could not pass the JCK. */
+ // public static final Source JDK1_1 = new Source("1.1");
+
+ /** 1.2 introduced strictfp. */
+ JDK1_2("1.2"),
+
+ /** 1.3 is the same language as 1.2. */
+ JDK1_3("1.3"),
+
+ /** 1.4 introduced assert. */
+ JDK1_4("1.4"),
+
+ /** 1.5 introduced generics, attributes, foreach, boxing, static import,
+ * covariant return, enums, varargs, et al. */
+ JDK1_5("1.5"),
+
+ /** 1.6 reports encoding problems as errors instead of warnings. */
+ JDK1_6("1.6"),
+
+ /** 1.7 covers the to be determined language features that will be added in JDK 7. */
+ JDK1_7("1.7");
+
+ private static final Context.Key<Source> sourceKey
+ = new Context.Key<Source>();
+
+ public static Source instance(Context context) {
+ Source instance = context.get(sourceKey);
+ if (instance == null) {
+ Options options = Options.instance(context);
+ String sourceString = options.get("-source");
+ if (sourceString != null) instance = lookup(sourceString);
+ if (instance == null) instance = DEFAULT;
+ context.put(sourceKey, instance);
+ }
+ return instance;
+ }
+
+ public final String name;
+
+ private static Map<String,Source> tab = new HashMap<String,Source>();
+ static {
+ for (Source s : values()) {
+ tab.put(s.name, s);
+ }
+ tab.put("5", JDK1_5); // Make 5 an alias for 1.5
+ tab.put("6", JDK1_6); // Make 6 an alias for 1.6
+ tab.put("7", JDK1_7); // Make 7 an alias for 1.7
+ }
+
+ private Source(String name) {
+ this.name = name;
+ }
+
+ public static final Source DEFAULT = JDK1_5;
+
+ public static Source lookup(String name) {
+ return tab.get(name);
+ }
+
+ public Target requiredTarget() {
+ if (this.compareTo(JDK1_7) >= 0) return Target.JDK1_7;
+ if (this.compareTo(JDK1_6) >= 0) return Target.JDK1_6;
+ if (this.compareTo(JDK1_5) >= 0) return Target.JDK1_5;
+ if (this.compareTo(JDK1_4) >= 0) return Target.JDK1_4;
+ return Target.JDK1_1;
+ }
+
+ /** Allow encoding errors, giving only warnings. */
+ public boolean allowEncodingErrors() {
+ return compareTo(JDK1_6) < 0;
+ }
+ public boolean allowAsserts() {
+ return compareTo(JDK1_4) >= 0;
+ }
+ public boolean allowCovariantReturns() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean allowGenerics() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean allowEnums() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean allowForeach() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean allowStaticImport() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean allowBoxing() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean allowVarargs() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean allowAnnotations() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ // hex floating-point literals supported?
+ public boolean allowHexFloats() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean allowAnonOuterThis() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean addBridges() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public boolean enforceMandatoryWarnings() {
+ return compareTo(JDK1_5) >= 0;
+ }
+ public static SourceVersion toSourceVersion(Source source) {
+ switch(source) {
+ case JDK1_2:
+ return RELEASE_2;
+ case JDK1_3:
+ return RELEASE_3;
+ case JDK1_4:
+ return RELEASE_4;
+ case JDK1_5:
+ return RELEASE_5;
+ case JDK1_6:
+ return RELEASE_6;
+ case JDK1_7:
+ return RELEASE_7;
+ default:
+ return null;
+ }
+ }
+}