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package lombok.javac.java6;
import java.lang.reflect.Field;
import java.util.Map;
import lombok.javac.Comment;
import com.sun.tools.javac.main.JavaCompiler;
import com.sun.tools.javac.parser.Lexer;
import com.sun.tools.javac.parser.Parser;
import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.List;
public class CommentCollectingParserFactory extends Parser.Factory {
private final Map<JCCompilationUnit, List<Comment>> commentsMap;
static Context.Key<Parser.Factory> key() {
return parserFactoryKey;
}
protected CommentCollectingParserFactory(Context context, Map<JCCompilationUnit, List<Comment>> commentsMap) {
super(context);
this.commentsMap = commentsMap;
}
@Override public Parser newParser(Lexer S, boolean keepDocComments, boolean genEndPos) {
Object x = new CommentCollectingParser(this, S, keepDocComments, commentsMap);
return (Parser) 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 javac7's EndPosParser which implements Parser.
//Either way this will work out.
}
public static void setInCompiler(JavaCompiler compiler, Context context, Map<JCCompilationUnit, List<Comment>> commentsMap) {
context.put(CommentCollectingParserFactory.key(), (Parser.Factory)null);
Field field;
try {
field = JavaCompiler.class.getDeclaredField("parserFactory");
field.setAccessible(true);
field.set(compiler, new CommentCollectingParserFactory(context, commentsMap));
} catch (Exception e) {
throw new IllegalStateException("Could not set comment sensitive parser in the compiler", e);
}
}
}
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