duke@1: /* ohair@962: * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved. duke@1: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@1: * duke@1: * This code is free software; you can redistribute it and/or modify it duke@1: * under the terms of the GNU General Public License version 2 only, as ohair@554: * published by the Free Software Foundation. Oracle designates this duke@1: * particular file as subject to the "Classpath" exception as provided ohair@554: * by Oracle in the LICENSE file that accompanied this code. duke@1: * duke@1: * This code is distributed in the hope that it will be useful, but WITHOUT duke@1: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@1: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@1: * version 2 for more details (a copy is included in the LICENSE file that duke@1: * accompanied this code). duke@1: * duke@1: * You should have received a copy of the GNU General Public License version duke@1: * 2 along with this work; if not, write to the Free Software Foundation, duke@1: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@1: * ohair@554: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@554: * or visit www.oracle.com if you need additional information or have any ohair@554: * questions. duke@1: */ duke@1: duke@1: package com.sun.tools.javac.code; duke@1: jjg@700: import java.util.*; jjg@700: import javax.lang.model.SourceVersion; jjg@700: import static javax.lang.model.SourceVersion.*; jjg@700: duke@1: import com.sun.tools.javac.util.*; duke@1: import com.sun.tools.javac.jvm.Target; jjg@700: jjg@700: import static com.sun.tools.javac.main.OptionName.*; duke@1: duke@1: /** The source language version accepted. duke@1: * jjg@581: *

This is NOT part of any supported API. jjg@581: * If you write code that depends on this, you do so at your own risk. duke@1: * This code and its internal interfaces are subject to change or duke@1: * deletion without notice. duke@1: */ duke@1: public enum Source { duke@1: /** 1.0 had no inner classes, and so could not pass the JCK. */ duke@1: // public static final Source JDK1_0 = new Source("1.0"); duke@1: duke@1: /** 1.1 did not have strictfp, and so could not pass the JCK. */ duke@1: // public static final Source JDK1_1 = new Source("1.1"); duke@1: duke@1: /** 1.2 introduced strictfp. */ duke@1: JDK1_2("1.2"), duke@1: duke@1: /** 1.3 is the same language as 1.2. */ duke@1: JDK1_3("1.3"), duke@1: duke@1: /** 1.4 introduced assert. */ duke@1: JDK1_4("1.4"), duke@1: duke@1: /** 1.5 introduced generics, attributes, foreach, boxing, static import, duke@1: * covariant return, enums, varargs, et al. */ duke@1: JDK1_5("1.5"), duke@1: duke@1: /** 1.6 reports encoding problems as errors instead of warnings. */ duke@1: JDK1_6("1.6"), duke@1: duke@1: /** 1.7 covers the to be determined language features that will be added in JDK 7. */ duke@1: JDK1_7("1.7"); duke@1: duke@1: private static final Context.Key sourceKey duke@1: = new Context.Key(); duke@1: duke@1: public static Source instance(Context context) { duke@1: Source instance = context.get(sourceKey); duke@1: if (instance == null) { duke@1: Options options = Options.instance(context); jjg@700: String sourceString = options.get(SOURCE); duke@1: if (sourceString != null) instance = lookup(sourceString); duke@1: if (instance == null) instance = DEFAULT; duke@1: context.put(sourceKey, instance); duke@1: } duke@1: return instance; duke@1: } duke@1: duke@1: public final String name; duke@1: duke@1: private static Map tab = new HashMap(); duke@1: static { duke@1: for (Source s : values()) { duke@1: tab.put(s.name, s); duke@1: } duke@1: tab.put("5", JDK1_5); // Make 5 an alias for 1.5 duke@1: tab.put("6", JDK1_6); // Make 6 an alias for 1.6 duke@1: tab.put("7", JDK1_7); // Make 7 an alias for 1.7 duke@1: } duke@1: duke@1: private Source(String name) { duke@1: this.name = name; duke@1: } duke@1: jjg@286: public static final Source DEFAULT = JDK1_7; duke@1: duke@1: public static Source lookup(String name) { duke@1: return tab.get(name); duke@1: } duke@1: duke@1: public Target requiredTarget() { duke@1: if (this.compareTo(JDK1_7) >= 0) return Target.JDK1_7; duke@1: if (this.compareTo(JDK1_6) >= 0) return Target.JDK1_6; duke@1: if (this.compareTo(JDK1_5) >= 0) return Target.JDK1_5; duke@1: if (this.compareTo(JDK1_4) >= 0) return Target.JDK1_4; duke@1: return Target.JDK1_1; duke@1: } duke@1: duke@1: /** Allow encoding errors, giving only warnings. */ duke@1: public boolean allowEncodingErrors() { duke@1: return compareTo(JDK1_6) < 0; duke@1: } duke@1: public boolean allowAsserts() { duke@1: return compareTo(JDK1_4) >= 0; duke@1: } duke@1: public boolean allowCovariantReturns() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean allowGenerics() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } mcimadamore@537: public boolean allowDiamond() { mcimadamore@537: return compareTo(JDK1_7) >= 0; mcimadamore@537: } mcimadamore@550: public boolean allowMulticatch() { mcimadamore@550: return compareTo(JDK1_7) >= 0; mcimadamore@550: } mcimadamore@935: public boolean allowImprovedRethrowAnalysis() { mcimadamore@935: return compareTo(JDK1_7) >= 0; mcimadamore@935: } mcimadamore@935: public boolean allowImprovedCatchAnalysis() { mcimadamore@935: return compareTo(JDK1_7) >= 0; mcimadamore@935: } duke@1: public boolean allowEnums() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean allowForeach() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean allowStaticImport() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean allowBoxing() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean allowVarargs() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean allowAnnotations() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: // hex floating-point literals supported? duke@1: public boolean allowHexFloats() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean allowAnonOuterThis() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean addBridges() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } duke@1: public boolean enforceMandatoryWarnings() { duke@1: return compareTo(JDK1_5) >= 0; duke@1: } darcy@609: public boolean allowTryWithResources() { darcy@609: return compareTo(JDK1_7) >= 0; darcy@609: } jjg@308: public boolean allowTypeAnnotations() { jjg@308: return compareTo(JDK1_7) >= 0; jjg@308: } jjg@409: public boolean allowBinaryLiterals() { jjg@409: return compareTo(JDK1_7) >= 0; jjg@409: } jjg@409: public boolean allowUnderscoresInLiterals() { jjg@409: return compareTo(JDK1_7) >= 0; jjg@409: } mcimadamore@674: public boolean allowStringsInSwitch() { jrose@571: return compareTo(JDK1_7) >= 0; jrose@571: } mcimadamore@795: public boolean allowSimplifiedVarargs() { mcimadamore@795: return compareTo(JDK1_7) >= 0; mcimadamore@795: } duke@1: public static SourceVersion toSourceVersion(Source source) { duke@1: switch(source) { duke@1: case JDK1_2: duke@1: return RELEASE_2; duke@1: case JDK1_3: duke@1: return RELEASE_3; duke@1: case JDK1_4: duke@1: return RELEASE_4; duke@1: case JDK1_5: duke@1: return RELEASE_5; duke@1: case JDK1_6: duke@1: return RELEASE_6; duke@1: case JDK1_7: duke@1: return RELEASE_7; duke@1: default: duke@1: return null; duke@1: } duke@1: } duke@1: }