jdk-24/test/langtools/tools/javac/tree/Imports.java
Jan Lahoda f2c4a41304 8328481: Implement JEP 476: Module Import Declarations (Preview)
Co-authored-by: Jim Laskey <jlaskey@openjdk.org>
Reviewed-by: mcimadamore, vromero
2024-05-06 05:49:28 +00:00

138 lines
4.9 KiB
Java

/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
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*
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* 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
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*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
/*
* @test
* @bug 8328481
* @summary Verify the Trees model for module imports
* @library /tools/lib
* @modules java.logging
* java.sql
* jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.javac.util
* @build toolbox.ToolBox toolbox.JavacTask
* @run main Imports
*/
import com.sun.source.tree.ImportTree;
import com.sun.source.util.TaskEvent;
import com.sun.source.util.TaskEvent.Kind;
import com.sun.source.util.TaskListener;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.concurrent.atomic.AtomicInteger;
import toolbox.TestRunner;
import toolbox.JavacTask;
import toolbox.Task;
import toolbox.ToolBox;
public class Imports extends TestRunner {
private static final String SOURCE_VERSION = System.getProperty("java.specification.version");
private ToolBox tb;
public static void main(String... args) throws Exception {
new Imports().runTests();
}
Imports() {
super(System.err);
tb = new ToolBox();
}
public void runTests() throws Exception {
runTests(m -> new Object[] { Paths.get(m.getName()) });
}
@Test
public void testModuleImport(Path base) throws Exception {
Path current = base.resolve(".");
Path src = current.resolve("src");
Path classes = current.resolve("classes");
tb.writeJavaFiles(src,
"""
package test;
import module java.base;
public class Test {
}
""");
Files.createDirectories(classes);
AtomicInteger seenImports = new AtomicInteger(-1);
new JavacTask(tb)
.options("--enable-preview", "--release", SOURCE_VERSION)
.outdir(classes)
.files(tb.findJavaFiles(src))
.callback(task -> {
task.addTaskListener(new TaskListener() {
@Override
public void finished(TaskEvent e) {
if (e.getKind() != Kind.PARSE) {
return ;
}
var imports = e.getCompilationUnit().getImports();
seenImports.set(imports.size());
if (imports.size() != 1) {
throw new AssertionError("Exception 1 import, " +
"but got: " + imports.size());
}
ImportTree it = imports.get(0);
if (!it.isModule()) {
throw new AssertionError("Expected module import, but got ordinary one.");
}
if (!"java.base".equals(it.getQualifiedIdentifier().toString())) {
throw new AssertionError("Expected module import for java.base, " +
"but got: " + it.getQualifiedIdentifier());
}
String expectedImportToString = "import module java.base;\n";
String actualImportToString = it.toString()
.replaceAll("\\R", "\n");
if (!expectedImportToString.equals(actualImportToString)) {
throw new AssertionError("Expected '" + expectedImportToString + "', " +
"but got: '" + it + "'");
}
}
});
})
.run(Task.Expect.SUCCESS);
if (seenImports.get() == (-1)) {
throw new AssertionError("Did not verify any imports!");
}
}
}