diff options
Diffstat (limited to 'src/spiProcessor')
| -rw-r--r-- | src/spiProcessor/lombok/spi/Provides.java | 33 | ||||
| -rw-r--r-- | src/spiProcessor/lombok/spi/SpiProcessor.java | 254 | ||||
| -rw-r--r-- | src/spiProcessor/lombok/spi/SpiProcessorCollector.java | 107 | ||||
| -rw-r--r-- | src/spiProcessor/lombok/spi/SpiProcessorPersistence.java | 148 | ||||
| -rw-r--r-- | src/spiProcessor/lombok/spi/SpiProcessorService.java | 83 |
5 files changed, 625 insertions, 0 deletions
diff --git a/src/spiProcessor/lombok/spi/Provides.java b/src/spiProcessor/lombok/spi/Provides.java new file mode 100644 index 00000000..de930819 --- /dev/null +++ b/src/spiProcessor/lombok/spi/Provides.java @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2021 The Project Lombok Authors. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package lombok.spi; + +import java.lang.annotation.ElementType; +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; +import java.lang.annotation.Target; + +@Target(ElementType.TYPE) +@Retention(RetentionPolicy.SOURCE) +public @interface Provides { + Class<?>[] value() default {}; +} diff --git a/src/spiProcessor/lombok/spi/SpiProcessor.java b/src/spiProcessor/lombok/spi/SpiProcessor.java new file mode 100644 index 00000000..4ad27bbe --- /dev/null +++ b/src/spiProcessor/lombok/spi/SpiProcessor.java @@ -0,0 +1,254 @@ +/* + * Copyright (C) 2021 The Project Lombok Authors. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package lombok.spi; + +import java.io.IOException; +import java.util.ArrayDeque; +import java.util.ArrayList; +import java.util.Deque; +import java.util.List; +import java.util.Map.Entry; +import java.util.Set; + +import javax.annotation.processing.AbstractProcessor; +import javax.annotation.processing.ProcessingEnvironment; +import javax.annotation.processing.RoundEnvironment; +import javax.annotation.processing.SupportedAnnotationTypes; +import javax.lang.model.SourceVersion; +import javax.lang.model.element.AnnotationMirror; +import javax.lang.model.element.AnnotationValue; +import javax.lang.model.element.Element; +import javax.lang.model.element.ElementKind; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.element.Modifier; +import javax.lang.model.element.Name; +import javax.lang.model.element.TypeElement; +import javax.lang.model.type.DeclaredType; +import javax.lang.model.type.TypeMirror; + +import javax.tools.Diagnostic.Kind; + +@SupportedAnnotationTypes("*") +public class SpiProcessor extends AbstractProcessor { + private SpiProcessorCollector data; + private SpiProcessorPersistence persistence; + + static String getRootPathOfServiceFiles() { + return "META-INF/services/"; + } + + @Override public SourceVersion getSupportedSourceVersion() { + return SourceVersion.latest(); + } + + static String toErrorMsg(Exception e, String pathName) { + StringBuilder sb = new StringBuilder(); + sb.append("Exception applying SPI processor on ").append(pathName).append(": ").append(toStringLong(e)); + return sb.toString(); + } + + private static String toStringLong(Throwable t) { + if (t == null) return "NULL"; + StringBuilder out = new StringBuilder(); + + String msg = t.getMessage(); + out.append(t.getClass().getName()); + if (msg != null) out.append(": ").append(msg); + String indent = " "; + + StackTraceElement[] elems = t.getStackTrace(); + if (elems != null) for (int i = 0; i < elems.length; i++) { + out.append("\n").append(indent).append(elems[i]); + } + Throwable cause = t.getCause(); + while (cause != null) { + indent = indent + " "; + out.append("\n").append(indent).append("Caused by: ").append(cause.getClass().getName()); + msg = cause.getMessage(); + if (msg != null) out.append(": ").append(msg); + elems = cause.getStackTrace(); + indent = indent + " "; + if (elems != null) for (int i = 0; i < elems.length; i++) { + out.append("\n").append(indent).append(elems[i]); + } + cause = cause.getCause(); + } + return out.toString(); + } + + @Override public synchronized void init(ProcessingEnvironment processingEnv) { + super.init(processingEnv); + persistence = new SpiProcessorPersistence("SpiProcessor", processingEnv.getFiler(), processingEnv.getMessager()); + data = new SpiProcessorCollector(processingEnv); + for (String serviceName : persistence.tryFind()) data.getService(serviceName); + data.stripProvidersWithoutSourceFile(); + } + + @Override public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { + removeStaleData(roundEnv); + handleAnnotations(roundEnv); + if (roundEnv.processingOver()) writeData(); + + return false; + } + + private void writeData() { + for (SpiProcessorService service : data.services()) { + try { + persistence.write(service.getName(), service.toProvidersListFormat()); + } + catch (IOException e) { + processingEnv.getMessager().printMessage(Kind.ERROR, e.getMessage()); + } + } + } + + private void removeStaleData(RoundEnvironment roundEnv) { + for (Element e : roundEnv.getRootElements()) { + if (e instanceof TypeElement) { + TypeElement currentClass = (TypeElement) e; + data.removeProvider(createProperQualifiedName(currentClass)); + } + } + } + + private void handleAnnotations(RoundEnvironment roundEnv) { + Set<? extends Element> elements = roundEnv.getElementsAnnotatedWith(Provides.class); + for (Element e : elements) handleProvidingElement(e); + } + + private void handleProvidingElement(Element element) { + if (element.getKind() != ElementKind.CLASS) { + report(element, "is not a class definition"); + return; + } + + TypeElement elem = (TypeElement) element; + + Element enclosing = elem.getEnclosingElement(); + if (enclosing != null && enclosing.getKind() == ElementKind.CLASS && !elem.getModifiers().contains(Modifier.STATIC)) { + report(elem, "is a non-static inner class"); + return; + } + + boolean hasConstructors = false; + boolean hasNoArgsConstructor = false; + for (Element child : elem.getEnclosedElements()) { + if (child.getKind() != ElementKind.CONSTRUCTOR) continue; + ExecutableElement ee = (ExecutableElement) child; + hasConstructors = true; + if (ee.getParameters().isEmpty()) { + hasNoArgsConstructor = true; + break; + } + } + + if (hasConstructors && !hasNoArgsConstructor) { + report(elem, "has no no-args constructor"); + return; + } + + List<TypeMirror> spiTypes = new ArrayList<TypeMirror>(); + + for (AnnotationMirror annMirror : element.getAnnotationMirrors()) { + if (!getQualifiedTypeName(annMirror).contentEquals(Provides.class.getName())) continue; + for (Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : annMirror.getElementValues().entrySet()) { + if (!entry.getKey().getSimpleName().contentEquals("value")) continue; + Object list = entry.getValue().getValue(); + if (list instanceof TypeMirror) spiTypes.add((TypeMirror) list); + else if (list instanceof List<?>) { + for (Object tm : (List<?>) list) { + if (tm instanceof AnnotationValue) tm = ((AnnotationValue) tm).getValue(); + if (tm instanceof TypeMirror) { + TypeMirror mirror = (TypeMirror) tm; + mirror = processingEnv.getTypeUtils().erasure(mirror); + spiTypes.add(mirror); + } + } + } + } + } + + TypeMirror superclass = elem.getSuperclass(); + if (spiTypes.isEmpty()) { + List<TypeMirror> qualifying = new ArrayList<TypeMirror>(); + qualifying.addAll(elem.getInterfaces()); + if (superclass != null && !toElement(superclass).getQualifiedName().contentEquals("java.lang.Object")) qualifying.add(superclass); + + if (qualifying.isEmpty()) { + report(elem, "is marked @Provides but implements/extends nothing"); + return; + } + if (qualifying.size() > 1) { + report(elem, "is marked @Provides but implements/extends multiple types; explicitly specify which interface(s) this provides for"); + return; + } + spiTypes.add(qualifying.get(0)); + } else { + Deque<TypeMirror> parentage = new ArrayDeque<TypeMirror>(); + parentage.addAll(elem.getInterfaces()); + parentage.add(superclass); + List<TypeMirror> needed = new ArrayList<TypeMirror>(); + needed.addAll(spiTypes); + while (!parentage.isEmpty() && !spiTypes.isEmpty()) { + TypeMirror parent = parentage.pollFirst(); + if (parent == null) continue; + needed.remove(parent); + parentage.addAll(processingEnv.getTypeUtils().directSupertypes(parent)); + } + if (!needed.isEmpty()) { + report(elem, "is marked as providing " + needed + " but does not implement it"); + return; + } + } + + for (TypeMirror spiType : spiTypes) { + String spiTypeName = createProperQualifiedName(toElement(spiType)); + String createProperQualifiedName = createProperQualifiedName(elem); + data.getService(spiTypeName).addProvider(createProperQualifiedName); + } + } + + private Name getQualifiedTypeName(AnnotationMirror mirror) { + Element elem = mirror.getAnnotationType().asElement(); + if (!(elem instanceof TypeElement)) return null; + return ((TypeElement) elem).getQualifiedName(); + } + + private TypeElement toElement(TypeMirror typeMirror) { + if (typeMirror instanceof DeclaredType) { + Element asElement = ((DeclaredType) typeMirror).asElement(); + if (asElement instanceof TypeElement) return (TypeElement) asElement; + } + return null; + } + + private void report(Element elem, String message) { + /* In eclipse, messages just seem to get ignored, so we throw instead. */ + if (Boolean.TRUE) throw new RuntimeException(elem.getSimpleName() + " " + message); + processingEnv.getMessager().printMessage(Kind.ERROR, elem.getSimpleName() + " " + message, elem); + } + + private String createProperQualifiedName(TypeElement provider) { + return processingEnv.getElementUtils().getBinaryName(provider).toString(); + } +} diff --git a/src/spiProcessor/lombok/spi/SpiProcessorCollector.java b/src/spiProcessor/lombok/spi/SpiProcessorCollector.java new file mode 100644 index 00000000..52e557f6 --- /dev/null +++ b/src/spiProcessor/lombok/spi/SpiProcessorCollector.java @@ -0,0 +1,107 @@ +/* + * Copyright (C) 2021 The Project Lombok Authors. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package lombok.spi; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import javax.annotation.processing.Filer; +import javax.annotation.processing.Messager; +import javax.annotation.processing.ProcessingEnvironment; +import javax.lang.model.util.Elements; +import javax.tools.Diagnostic.Kind; +import javax.tools.FileObject; +import javax.tools.StandardLocation; + +class SpiProcessorCollector { + private final Map<String, SpiProcessorService> services = new HashMap<String, SpiProcessorService>(); + private final List<String> removed = new ArrayList<String>(); + + private final Elements elements; + private final Messager logger; + private final Filer filer; + + SpiProcessorCollector(ProcessingEnvironment processingEnv) { + this.elements = processingEnv.getElementUtils(); + this.logger = processingEnv.getMessager(); + this.filer = processingEnv.getFiler(); + } + + SpiProcessorCollector(Elements elements, Messager logger, Filer filer) { + if (elements == null) throw new NullPointerException("elements"); + if (logger == null) throw new NullPointerException("logger"); + if (filer == null) throw new NullPointerException("filer"); + this.elements = elements; + this.logger = logger; + this.filer = filer; + } + + SpiProcessorService getService(String serviceName) { + if (serviceName == null) throw new NullPointerException("serviceName"); + if (!services.containsKey(serviceName)) { + SpiProcessorService newService = new SpiProcessorService(serviceName); + CharSequence initialData = readInitialData(serviceName); + if (initialData != null) { + newService.addAllFromProvidersNameList(initialData.toString()); + for (String provider : removed) newService.removeProvider(provider); + } + services.put(serviceName, newService); + } + return services.get(serviceName); + } + + Collection<SpiProcessorService> services() { + return Collections.unmodifiableMap(services).values(); + } + + void removeProvider(String provider) { + if (provider == null) throw new NullPointerException("provider"); + removed.add(provider); + for (SpiProcessorService service : services.values()) service.removeProvider(provider); + } + + @Override public String toString() { + return services.values().toString(); + } + + private CharSequence readInitialData(String serviceName) { + String pathName = SpiProcessor.getRootPathOfServiceFiles() + serviceName; + FileObject resource; + + try { + resource = filer.getResource(StandardLocation.CLASS_OUTPUT, "", pathName); + } catch (Exception e) { + logger.printMessage(Kind.ERROR, SpiProcessor.toErrorMsg(e, pathName)); + return null; + } + + return SpiProcessorPersistence.readFilerResource(resource, logger, pathName); + } + + void stripProvidersWithoutSourceFile() { + for (SpiProcessorService s : services.values()) s.stripProvidersWithoutSourceFile(elements); + } +} diff --git a/src/spiProcessor/lombok/spi/SpiProcessorPersistence.java b/src/spiProcessor/lombok/spi/SpiProcessorPersistence.java new file mode 100644 index 00000000..c9bd745f --- /dev/null +++ b/src/spiProcessor/lombok/spi/SpiProcessorPersistence.java @@ -0,0 +1,148 @@ +/* + * Copyright (C) 2021 The Project Lombok Authors. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package lombok.spi; + +import java.io.BufferedReader; +import java.io.File; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.io.Reader; +import java.io.Writer; +import java.net.URI; +import java.text.SimpleDateFormat; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.Date; +import java.util.List; +import java.util.Locale; + +import javax.annotation.processing.Filer; +import javax.annotation.processing.Messager; +import javax.tools.Diagnostic.Kind; +import javax.tools.FileObject; +import javax.tools.StandardLocation; + +class SpiProcessorPersistence { + private final String name; + private final String path; + final Filer filer; + private final Messager logger; + + SpiProcessorPersistence(String name, Filer filer, Messager logger) { + this.name = name; + this.logger = logger; + this.path = SpiProcessor.getRootPathOfServiceFiles(); + this.filer = filer; + } + + static CharSequence readFilerResource(FileObject resource, Messager logger, String pathName) { + try { + // Eclipse can't handle getCharContent, so we must use a reader... + return tryWithReader(resource); + } catch (FileNotFoundException e) { + return null; + } catch (IOException e) { + if ( + e.getClass().getName().equals("org.eclipse.core.internal.resources.ResourceException") && + e.getMessage() != null && + e.getMessage().endsWith("does not exist.")) { + + return null; + } + + logger.printMessage(Kind.ERROR, SpiProcessor.toErrorMsg(e, pathName)); + return null; + } catch (Exception other) { + // otherwise, probably javac: Some versions don't support the `openReader` method. + try { + return resource.getCharContent(true); + } catch (FileNotFoundException e) { + return null; + } catch (IOException e) { + logger.printMessage(Kind.ERROR, SpiProcessor.toErrorMsg(e, pathName)); + return null; + } + } + } + + private static CharSequence tryWithReader(FileObject resource) throws IOException { + StringBuilder sb = new StringBuilder(); + Reader raw = resource.openReader(true); + try { + BufferedReader in = new BufferedReader(raw); + for (String line = in.readLine(); line != null; line = in.readLine()) sb.append(line).append('\n'); + return sb; + } finally { + if (raw != null) raw.close(); + } + } + + Collection<String> tryFind() { + File dir = determineOutputLocation(); + if (dir == null || !dir.isDirectory()) return Collections.emptyList(); + List<String> out = new ArrayList<String>(); + for (File p : dir.listFiles()) { + if (!p.isFile()) continue; + out.add(p.getName()); + } + return out; + } + + private File determineOutputLocation() { + FileObject resource; + try { + resource = filer.createResource(StandardLocation.CLASS_OUTPUT, "META-INF", "locator.tmp"); + } catch (FileNotFoundException e) { + e.printStackTrace(); + // Could happen + return null; + } catch (IOException e) { + e.printStackTrace(); + logger.printMessage(Kind.NOTE, "IOException while determining output location: " + e.getMessage()); + return null; + } catch (IllegalArgumentException e) { + e.printStackTrace(); + // Happens when the path is invalid. For instance absolute or relative to a path + // not part of the class output folder. + // + // Due to a bug in javac for Linux, this also occurs when no output path is specified + // for javac using the -d parameter. + // See http://forums.sun.com/thread.jspa?threadID=5240999&tstart=45 + // and http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6647996 + + return null; + } + + URI uri = resource.toUri(); + return new File(new File(uri).getParentFile(), "services"); + } + + void write(String serviceName, String value) throws IOException { + FileObject output = filer.createResource(StandardLocation.CLASS_OUTPUT, "", path + serviceName); + Writer writer = output.openWriter(); + writer.write("# Generated by " + name + "\n"); + writer.write("# " + new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z", Locale.US).format(new Date()) + "\n"); + writer.write(value); + writer.close(); + } +} diff --git a/src/spiProcessor/lombok/spi/SpiProcessorService.java b/src/spiProcessor/lombok/spi/SpiProcessorService.java new file mode 100644 index 00000000..be8d5a21 --- /dev/null +++ b/src/spiProcessor/lombok/spi/SpiProcessorService.java @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2021 The Project Lombok Authors. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +package lombok.spi; + +import java.util.Iterator; +import java.util.Set; +import java.util.TreeSet; +import java.util.stream.Collectors; + +import javax.lang.model.util.Elements; + +final class SpiProcessorService { + private final String name; + private final Set<String> providers = new TreeSet<String>(); + + SpiProcessorService(String name) { + if (name == null) throw new NullPointerException("name"); + this.name = name; + } + + public String getName() { + return name; + } + + void addProvider(String className) { + if (className == null) throw new NullPointerException("className"); + providers.add(className); + } + + boolean removeProvider(String provider) { + return providers.remove(provider); + } + + String toProvidersListFormat() { + return providers.stream().collect(Collectors.joining("\n")); + } + + void addAllFromProvidersNameList(String in) { + for (String line : in.split("\\n")) { + String[] content = line.split("#", 2); + if (content.length == 0) continue; + String trimmed = content[0].trim(); + String[] elems = trimmed.split("\\s+", 2); + if (elems.length == 0 || elems[0].isEmpty()) continue; + String cn = elems[0]; + addProvider(cn); + } + } + + void stripProvidersWithoutSourceFile(Elements elements) { + Iterator<String> it = providers.iterator(); + while (it.hasNext()) { + if (!sourceExists(elements, it.next())) it.remove(); + } + } + + private boolean sourceExists(Elements elements, String typeName) { + return elements.getTypeElement(typeName) != null; + } + + @Override public String toString() { + return name + " = " + providers; + } +} |