Java compilation unit source listing tool.
- JavaBeans style API
- Aligned to JLS syntax grammar
- Runtime compilation supporting custom annotation processors
Here's a simple HelloWorld program. It demonstrates basic usage of the main features.
Name out = Name.of(System.class, "out");
CompilationUnit unit = CompilationUnit.of("listing");
unit.getImportDeclarations().addSingleStaticImport(out);
NormalClassDeclaration world = unit.declareClass("World");
world.addModifier(Modifier.PUBLIC);
MethodParameter strings = MethodParameter.of(String[].class, "strings");
MethodDeclaration main = world.declareMethod(void.class, "main");
main.addModifiers(Modifier.PUBLIC, Modifier.STATIC);
main.addParameter(strings);
main.addStatement("{N}.println({S} + {getName}[0])", out, "Hello ", strings);
System.out.println(unit.list(b -> b.setOmitJavaLangPackage(true)));
Class<?> hello = unit.compile();
Object[] arguments = {new String[] {"world!"}};
hello.getMethod("main", String[].class).invoke(null, arguments);The console reads like:
package listing;
import static java.lang.System.out;
public class World {
public static void main(String[] strings) {
out.println("Hello " + strings[0]);
}
}
Hello world!
- JUnit 5.0.0-M1
- Google Java Format 1.0
- Checkstyle 7.1
- Error Prone 2.0.11
Copyright 2016 Christian Stein
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy of
the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License.