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/*
* Copyright (C) 2013-2014 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.javac.java8;
import java.lang.reflect.Field;
import java.util.List;
import lombok.core.ReferenceFieldAugment;
import lombok.javac.CommentInfo;
import com.sun.tools.javac.main.JavaCompiler;
import com.sun.tools.javac.parser.JavacParser;
import com.sun.tools.javac.parser.Lexer;
import com.sun.tools.javac.parser.ParserFactory;
import com.sun.tools.javac.parser.ScannerFactory;
import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
import com.sun.tools.javac.util.Context;
public class CommentCollectingParserFactory extends ParserFactory {
private final ReferenceFieldAugment<JCCompilationUnit, List<CommentInfo>> commentsField;
private final Context context;
static Context.Key<ParserFactory> key() {
return parserFactoryKey;
}
protected CommentCollectingParserFactory(Context context, ReferenceFieldAugment<JCCompilationUnit, List<CommentInfo>> commentsField) {
super(context);
this.context = context;
this.commentsField = commentsField;
}
public JavacParser newParser(CharSequence input, boolean keepDocComments, boolean keepEndPos, boolean keepLineMap) {
ScannerFactory scannerFactory = ScannerFactory.instance(context);
Lexer lexer = scannerFactory.newScanner(input, true);
Object x = new CommentCollectingParser(this, lexer, true, keepLineMap, keepEndPos, commentsField);
return (JavacParser) x;
// CCP is based on a stub which extends nothing, but at runtime the stub is replaced with either
//javac6's EndPosParser which extends Parser, or javac8's JavacParser which implements Parser.
//Either way this will work out.
}
public static void setInCompiler(JavaCompiler compiler, Context context, ReferenceFieldAugment<JCCompilationUnit, List<CommentInfo>> commentsField) {
context.put(CommentCollectingParserFactory.key(), (ParserFactory)null);
Field field;
try {
field = JavaCompiler.class.getDeclaredField("parserFactory");
field.setAccessible(true);
field.set(compiler, new CommentCollectingParserFactory(context, commentsField));
} catch (Exception e) {
throw new IllegalStateException("Could not set comment sensitive parser in the compiler", e);
}
}
}
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