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Diffstat (limited to 'src/lombok/apt/AnnotationTransponder.java')
-rw-r--r-- | src/lombok/apt/AnnotationTransponder.java | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/src/lombok/apt/AnnotationTransponder.java b/src/lombok/apt/AnnotationTransponder.java deleted file mode 100644 index 01a79c12..00000000 --- a/src/lombok/apt/AnnotationTransponder.java +++ /dev/null @@ -1,111 +0,0 @@ -package lombok.apt; - -import static lombok.apt.PKG.CURRENT_SUPPORT; -import static lombok.apt.PKG.isInstanceOf; -import static lombok.apt.PKG.readResource; - -import java.lang.annotation.Annotation; -import java.lang.reflect.Constructor; - -import javax.annotation.processing.ProcessingEnvironment; -import javax.annotation.processing.RoundEnvironment; -import javax.lang.model.element.Element; -import javax.tools.Diagnostic; - -/** - * Responsible for redirecting the need to handle an annotation to a class that knows how to handle a given annotation type in a given compiler environment. - * Will dynamically locate a class in this package using the naming pattern: "HandleFoo_compilerType", e.g. "HandleGetter_ecj". - * Responsible for injecting the proper class into the right classloader so that it has open access to the classes required to inspect the live AST and - * modify it so that annotations can cause changes to the live AST. - * - * @author rzwitserloot - * - * @param <T> The annotation class that this transponder should handle (example: Getter.class). - */ -public class AnnotationTransponder<T extends Annotation> { - private HandlerForCompiler<T> impl; - private final ProcessingEnvironment processEnv; - private final RoundEnvironment roundEnv; - private String error; - - @SuppressWarnings("unchecked") - private void createInstance(Class<T> annotation, ClassLoader loader, String compilerType) { - try { - if ( loader == null ) loader = AnnotationTransponder.class.getClassLoader(); - Class<?> implClass; - try { - implClass = loader.loadClass(String.format( - "org.javanext.apt.Handle%s_%s", annotation.getSimpleName(), compilerType)); - } catch ( ClassNotFoundException e ) { - implClass = loader.loadClass(String.format("lombok.apt.HandleANY_%s", compilerType)); - } - - Constructor<?> constructor; - - constructor = implClass.getDeclaredConstructor(); - constructor.setAccessible(true); - impl = (HandlerForCompiler<T>)constructor.newInstance(); - impl.processEnv = processEnv; - impl.roundEnv = roundEnv; - try { - impl.init(); - } catch ( Exception e ) { - error = "Exception initializing handler: " + e; - impl = null; - } - } catch ( Exception e ) { - e.printStackTrace(); - error = "You are using " + compilerType + " but a version that's changed the compiler internals. I can't work with it."; - } - } - - public AnnotationTransponder(Class<T> annotation, RoundEnvironment roundEnv, ProcessingEnvironment processEnv) { - this.processEnv = processEnv; - this.roundEnv = roundEnv; - if ( isInstanceOf(processEnv, "com.sun.tools.javac.processing.JavacProcessingEnvironment") ) { - createInstance(annotation, null, "javac"); - } else if ( isInstanceOf(processEnv, "org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeBuildProcessingEnvImpl") ) { - final ClassLoader[] parentLoaders = - new ClassLoader[] { processEnv.getClass().getClassLoader(), AnnotationTransponder.class.getClassLoader() }; - - ClassLoader loader = new ClassLoader() { - @Override public Class<?> findClass(String name) throws ClassNotFoundException { - if ( name.equals(HandlerForCompiler.class.getName()) ) return HandlerForCompiler.class; - if ( name.startsWith(AnnotationTransponder.class.getPackage().getName()) ) { - byte[] data = readResource(name.replace(".", "/") + ".class"); - return defineClass(name, data, 0, data.length); - } - for ( int i = 0 ; i < parentLoaders.length ; i++ ) { - try { - return parentLoaders[i].loadClass(name); - } catch ( ClassNotFoundException e ) { - if ( i == parentLoaders.length -1 ) throw e; - } - } - - return null; - } - }; - - createInstance(annotation, loader, "ecj"); - } else { - impl = null; - this.error = "I cannot work with your compiler. I currently only support " + CURRENT_SUPPORT + ".\n" + - "This is a: " + processEnv.getClass(); - } - } - - - public void handle(Element element, T annotation) { - if ( impl == null ) { - processEnv.getMessager().printMessage(Diagnostic.Kind.WARNING, error, element); - } else { - try { - impl.handle(element, annotation); - } catch ( Exception e ) { - e.printStackTrace(); - processEnv.getMessager().printMessage(Diagnostic.Kind.WARNING, "Exception in JavaNext: " + e, element); - } - } - } -} |