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/*
* 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;
}
}
}
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