/*
* Copyright ( c ) 2010 , 2015 , 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 .
*
* 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
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*/
/* @test
* @ bug 6985202
* @ summary no access to doc comments from Tree API
* @ modules jdk . compiler / com . sun . tools . javac . api
* jdk . compiler / com . sun . tools . javac . file
*/
import java.io.*;
import java.util.*;
import javax.tools.*;
import com.sun.source.tree.*;
import com.sun.source.util.*;
import com.sun.tools.javac.api.JavacTool;
/**
* class - TestDocComments .
*/
public class TestDocComments {
/**
* method - main .
*/
public static void main(String... args) throws Exception {
new TestDocComments().run();
}
/**
* method - run .
*/
void run() throws Exception {
File testSrc = new File(System.getProperty("test.src" ));
File file = new File(testSrc, "TestDocComments.java" );
JavacTool tool = JavacTool.create();
try (StandardJavaFileManager fm = tool.getStandardFileManager(null , null , null )) {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
Iterable<? extends JavaFileObject> fileObjects = fm.getJavaFileObjects(file);
JavacTask task = tool.getTask(pw, fm, null , null , null , fileObjects);
Iterable<? extends CompilationUnitTree> units = task.parse();
Trees trees = Trees.instance(task);
CommentScanner s = new CommentScanner();
int n = s.scan(units, trees);
if (n != 12 )
error("Unexpected number of doc comments found: " + n);
if (errors > 0 )
throw new Exception(errors + " errors occurred" );
}
}
/**
* class - CommentScanner .
*/
class CommentScanner extends TreePathScanner<Integer,Trees> {
/**
* method - visitClass .
*/
@Override
public Integer visitClass(ClassTree t, Trees trees) {
return reduce(super .visitClass(t, trees),
check(trees, "class-" + t.getSimpleName() + "." ));
}
/**
* method - visitMethod .
*/
@Override
public Integer visitMethod(MethodTree t, Trees trees) {
return reduce(super .visitMethod(t, trees),
check(trees, "method-" + t.getName() + "." ));
}
/**
* method - visitVariable .
*/
@Override
public Integer visitVariable(VariableTree t, Trees trees) {
// for simplicity, only check fields, not parameters or local decls
int n = (getCurrentPath().getParentPath().getLeaf().getKind() == Tree.Kind.CLASS )
? check(trees, "field-" + t.getName() + "." )
: 0 ;
return reduce(super .visitVariable(t, trees), n);
}
/**
* method - reduce .
*/
@Override
public Integer reduce(Integer i1, Integer i2) {
return (i1 == null ) ? i2 : (i2 == null ) ? i1 : Integer.valueOf(i1 + i2);
}
/**
* method - check .
*/
int check(Trees trees, String expect) {
TreePath p = getCurrentPath();
String dc = trees.getDocComment(p);
if (dc != null && dc.trim().equals(expect))
return 1 ;
Tree.Kind k = p.getLeaf().getKind();
if (dc == null )
error("no doc comment for " + k);
else
error("unexpected doc comment for " + k + "\nexpect: " + expect + "\nfound: " + dc);
return 0 ;
}
}
/**
* method - nullCheck .
*/
int nullCheck(Integer i) {
return (i == null ) ? 0 : i;
}
/**
* method - error .
*/
void error(String msg) {
System.err.println("Error: " + msg);
errors++;
}
/**
* field - errors .
*/
int errors;
}
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