--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/tree/ParserImpl.java 2020-04-15 18:46:29.000000000 +0530 +++ /dev/null 2020-04-15 18:46:30.000000000 +0530 @@ -1,226 +0,0 @@ -/* - * Copyright (c) 2016, Oracle and/or its affiliates. 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. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package jdk.nashorn.api.tree; - -import java.io.File; -import java.io.IOException; -import java.io.PrintWriter; -import java.io.Reader; -import java.net.URL; -import java.nio.file.Path; -import java.util.Arrays; -import java.util.Map; -import java.util.Objects; -import jdk.nashorn.api.scripting.NashornException; -import jdk.nashorn.api.scripting.ScriptObjectMirror; -import jdk.nashorn.internal.ir.FunctionNode; -import jdk.nashorn.internal.runtime.Context; -import jdk.nashorn.internal.runtime.ErrorManager; -import jdk.nashorn.internal.runtime.JSType; -import jdk.nashorn.internal.runtime.ParserException; -import jdk.nashorn.internal.runtime.ScriptEnvironment; -import jdk.nashorn.internal.runtime.Source; -import jdk.nashorn.internal.runtime.options.Options; - -final class ParserImpl implements Parser { - - private final ScriptEnvironment env; - private final boolean moduleMode; - - ParserImpl(final String... args) throws IllegalArgumentException { - Objects.requireNonNull(args); - - // handle the parser specific "--es6-module" option - boolean seenModuleOption = false; - for (int idx = 0; idx < args.length; idx++) { - final String opt = args[idx]; - if (opt.equals("--es6-module")) { - seenModuleOption = true; - /* - * Nashorn parser does not understand parser API specific - * option. This option implies --language=es6. So, we change - * the option to --language=es6. Note that if user specified - * --language=es6 explicitly, that is okay. Nashorn tolerates - * repeated options! - */ - args[idx] = "--language=es6"; - break; - } - } - this.moduleMode = seenModuleOption; - - // append "--parse-only to signal to the Nashorn that it - // is being used in "parse only" mode. - final String[] newArgs = Arrays.copyOf(args, args.length + 1, String[].class); - newArgs[args.length] = "--parse-only"; - final Options options = new Options("nashorn"); - options.process(newArgs); - this.env = new ScriptEnvironment(options, - new PrintWriter(System.out), new PrintWriter(System.err)); - } - - @Override - public CompilationUnitTree parse(final File file, final DiagnosticListener listener) throws IOException, NashornException { - if (moduleMode) { - return parseModule(file, listener); - } - final Source src = Source.sourceFor(Objects.requireNonNull(file).getName(), file); - return translate(makeParser(src, listener).parse()); - } - - @Override - public CompilationUnitTree parse(final Path path, final DiagnosticListener listener) throws IOException, NashornException { - if (moduleMode) { - return parseModule(path, listener); - } - final Source src = Source.sourceFor(Objects.requireNonNull(path).toString(), path); - return translate(makeParser(src, listener).parse()); - } - - @Override - public CompilationUnitTree parse(final URL url, final DiagnosticListener listener) throws IOException, NashornException { - if (moduleMode) { - return parseModule(url, listener); - } - final Source src = Source.sourceFor(url.toString(), url); - return translate(makeParser(src, listener).parse()); - } - - @Override - public CompilationUnitTree parse(final String name, final Reader reader, final DiagnosticListener listener) throws IOException, NashornException { - if (moduleMode) { - return parseModule(name, reader, listener); - } - final Source src = Source.sourceFor(Objects.requireNonNull(name), Objects.requireNonNull(reader)); - return translate(makeParser(src, listener).parse()); - } - - @Override - public CompilationUnitTree parse(final String name, final String code, final DiagnosticListener listener) throws NashornException { - if (moduleMode) { - return parseModule(name, code, listener); - } - final Source src = Source.sourceFor(name, code); - return translate(makeParser(src, listener).parse()); - } - - @Override - public CompilationUnitTree parse(final ScriptObjectMirror scriptObj, final DiagnosticListener listener) throws NashornException { - if (moduleMode) { - return parseModule(scriptObj, listener); - } - final Map map = Objects.requireNonNull(scriptObj); - if (map.containsKey("script") && map.containsKey("name")) { - final String script = JSType.toString(map.get("script")); - final String name = JSType.toString(map.get("name")); - final Source src = Source.sourceFor(name, script); - return translate(makeParser(src, listener).parse()); - } else { - throw new IllegalArgumentException("can't find 'script' and 'name' properties"); - } - } - - private CompilationUnitTree parseModule(final File file, final DiagnosticListener listener) throws IOException, NashornException { - final Source src = Source.sourceFor(Objects.requireNonNull(file).getName(), file); - return makeModule(src, listener); - } - - private CompilationUnitTree parseModule(final Path path, final DiagnosticListener listener) throws IOException, NashornException { - final Source src = Source.sourceFor(Objects.requireNonNull(path).toString(), path); - return makeModule(src, listener); - } - - private CompilationUnitTree parseModule(final URL url, final DiagnosticListener listener) throws IOException, NashornException { - final Source src = Source.sourceFor(url.toString(), url); - return makeModule(src, listener); - } - - private CompilationUnitTree parseModule(final String name, final Reader reader, final DiagnosticListener listener) throws IOException, NashornException { - final Source src = Source.sourceFor(Objects.requireNonNull(name), Objects.requireNonNull(reader)); - return makeModule(src, listener); - } - - private CompilationUnitTree parseModule(final String name, final String code, final DiagnosticListener listener) throws NashornException { - final Source src = Source.sourceFor(name, code); - return makeModule(src, listener); - } - - private CompilationUnitTree parseModule(final ScriptObjectMirror scriptObj, final DiagnosticListener listener) throws NashornException { - final Map map = Objects.requireNonNull(scriptObj); - if (map.containsKey("script") && map.containsKey("name")) { - final String script = JSType.toString(map.get("script")); - final String name = JSType.toString(map.get("name")); - final Source src = Source.sourceFor(name, script); - return makeModule(src, listener); - } else { - throw new IllegalArgumentException("can't find 'script' and 'name' properties"); - } - } - - private CompilationUnitTree makeModule(final Source src, final DiagnosticListener listener) { - final FunctionNode modFunc = makeParser(src, listener).parseModule(src.getName()); - return new IRTranslator().translate(modFunc); - } - - private jdk.nashorn.internal.parser.Parser makeParser(final Source source, final DiagnosticListener listener) { - final ErrorManager errMgr = listener != null ? new ListenerErrorManager(listener) : new Context.ThrowErrorManager(); - return new jdk.nashorn.internal.parser.Parser(env, source, errMgr); - } - - private static class ListenerErrorManager extends ErrorManager { - - private final DiagnosticListener listener; - - ListenerErrorManager(final DiagnosticListener listener) { - // null check - listener.getClass(); - this.listener = listener; - } - - @Override - public void error(final String msg) { - error(new ParserException(msg)); - } - - @Override - public void error(final ParserException e) { - listener.report(new DiagnosticImpl(e, Diagnostic.Kind.ERROR)); - } - - @Override - public void warning(final String msg) { - warning(new ParserException(msg)); - } - - @Override - public void warning(final ParserException e) { - listener.report(new DiagnosticImpl(e, Diagnostic.Kind.WARNING)); - } - } - - private static CompilationUnitTree translate(final FunctionNode node) { - return new IRTranslator().translate(node); - } -}