/*
* Copyright ( c ) 2011 , 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
* questions .
*/
/*
* @ test
* @ bug 7080267
* @ summary Call to toString ( ) from an ExpressionStatementTree doesn ' t take in
* consideration the " ; " at the end
* @ modules jdk . compiler / com . sun . tools . javac . api
* jdk . compiler / com . sun . tools . javac . file
*/
import com.sun.source.tree.BlockTree;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.StatementTree;
import com.sun.source.tree.Tree;
import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.StandardJavaFileManager;
import com.sun.source.util.JavacTask;
import com.sun.source.util.TreeScanner;
import com.sun.tools.javac.api.JavacTool;
public class TestToString {
String[] statements = {
"i = i + 1;" ,
"i++;" ,
"m();" ,
";" ,
"if (i == 0) return;" ,
"while (i > 0) i--;" ,
"{ }" ,
"{ i++; }" ,
"class C { }"
};
public static void main(String... args) throws Exception {
new TestToString().run();
}
void run() throws Exception {
try {
for (String s: statements) {
test(s);
}
if (errors > 0 )
throw new Exception(errors + " errors found" );
} finally {
fm.close();
}
}
void test(String stmt) throws IOException {
System.err.println("Test: " + stmt);
List<String> options = Collections.<String>emptyList();
List<? extends JavaFileObject> files = Arrays.asList(new JavaSource(stmt));
JavacTask t = tool.getTask(null , fm, null , options, null , files);
checkEqual(scan(t.parse()), stmt);
}
String scan(Iterable<? extends CompilationUnitTree> trees) {
class Scanner extends TreeScanner<Void ,StringBuilder> {
String scan(Iterable<? extends Tree> trees) {
StringBuilder sb = new StringBuilder();
scan(trees, sb);
return sb.toString();
}
@Override
public Void scan(Tree tree, StringBuilder sb) {
if (print && tree instanceof StatementTree) {
sb.append(PREFIX);
sb.append(tree);
sb.append(SUFFIX);
return null ;
} else {
return super .scan(tree, sb);
}
}
@Override
public Void visitBlock(BlockTree tree, StringBuilder sb) {
print = true ;
try {
return super .visitBlock(tree, sb);
} finally {
print = false ;
}
}
boolean print = false ;
}
return new Scanner().scan(trees);
}
void checkEqual(String found, String expect) {
boolean match = (found == null ) ? (expect == null ) :
expect.equals(found
.replaceAll("^\\Q" + PREFIX + "\\E\\s*" , "" )
.replaceAll("\\s*\\Q" + SUFFIX + "\\E$" , "" )
.replaceAll("\\s+" , " " ));
if (!match)
error("Mismatch: expected: " + expect + " found: " + found);
}
void error(String msg) {
System.err.println("Error: " + msg);
errors++;
}
static final String PREFIX = "#<" ;
static final String SUFFIX = "#>" ;
JavacTool tool = JavacTool.create();
StandardJavaFileManager fm = tool.getStandardFileManager(null , null , null );
int errors = 0 ;
static class JavaSource extends SimpleJavaFileObject {
String source =
"class Test {\n" +
" int i;\n" +
" void m() {\n" +
" #S\n" +
" }\n" +
"}" ;
public JavaSource(String stmt) {
super (URI.create("myfo:/Test.java" ), JavaFileObject.Kind.SOURCE);
source = source.replace("#S" , stmt);
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
}
Messung V0.5 in Prozent C=97 H=88 G=92
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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