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author | Reinier Zwitserloot <reinier@tipit.to> | 2009-07-06 05:48:42 +0200 |
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committer | Reinier Zwitserloot <reinier@tipit.to> | 2009-07-06 05:48:42 +0200 |
commit | 527b992a074c1c65727bc52c820d40340f074a6b (patch) | |
tree | dc18cc09150e6a0138737f30be36b2231b2178c2 /src/lombok/eclipse/HandlerLibrary.java | |
parent | 8d4c5369ee7eff4020e892c7ca283ea0b1073638 (diff) | |
download | lombok-527b992a074c1c65727bc52c820d40340f074a6b.tar.gz lombok-527b992a074c1c65727bc52c820d40340f074a6b.tar.bz2 lombok-527b992a074c1c65727bc52c820d40340f074a6b.zip |
Last massive documentation dump. All basic javadoc is now done, though especially the docs
on the lombok annotations in the lombok package need far more massaging.
Also added a feature to HandleSynchronized to not auto-generate the locker fields if
a specific name is provided (because, imagine you typoed those. You'd never find it!)
Diffstat (limited to 'src/lombok/eclipse/HandlerLibrary.java')
-rw-r--r-- | src/lombok/eclipse/HandlerLibrary.java | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/lombok/eclipse/HandlerLibrary.java b/src/lombok/eclipse/HandlerLibrary.java index 6ee2baaa..b319f580 100644 --- a/src/lombok/eclipse/HandlerLibrary.java +++ b/src/lombok/eclipse/HandlerLibrary.java @@ -1,3 +1,24 @@ +/* + * Copyright © 2009 Reinier Zwitserloot and Roel Spilker. + * + * 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.eclipse; import static lombok.eclipse.Eclipse.toQualifiedName; @@ -21,7 +42,19 @@ import lombok.eclipse.EclipseAST.Node; import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration; import org.eclipse.jdt.internal.compiler.ast.TypeReference; +/** + * This class tracks 'handlers' and knows how to invoke them for any given AST node. + * + * This class can find the handlers (via SPI discovery) and will set up the given AST node, such as + * building an AnnotationValues instance. + */ public class HandlerLibrary { + /** + * Creates a new HandlerLibrary. Errors will be reported to the eclipse Error log. + * You probably want to use {@link #load()} instead. + */ + public HandlerLibrary() {} + private TypeLibrary typeLibrary = new TypeLibrary(); private static class AnnotationHandlerContainer<T extends Annotation> { @@ -47,6 +80,11 @@ public class HandlerLibrary { private boolean skipPrintAST; + /** + * Creates a new HandlerLibrary. Errors will be reported to the eclipse Error log. + * then uses SPI discovery to load all annotation and visitor based handlers so that future calls + * to the handle methods will defer to these handlers. + */ public static HandlerLibrary load() { HandlerLibrary lib = new HandlerLibrary(); @@ -56,6 +94,7 @@ public class HandlerLibrary { return lib; } + /** Uses SPI Discovery to find implementations of {@link EclipseAnnotationHandler}. */ @SuppressWarnings("unchecked") private static void loadAnnotationHandlers(HandlerLibrary lib) { Iterator<EclipseAnnotationHandler> it; try { @@ -80,6 +119,7 @@ public class HandlerLibrary { } } + /** Uses SPI Discovery to find implementations of {@link EclipseASTVisitor}. */ private static void loadVisitorHandlers(HandlerLibrary lib) { Iterator<EclipseASTVisitor> it; try { @@ -96,6 +136,23 @@ public class HandlerLibrary { } } + /** + * Handles the provided annotation node by first finding a qualifying instance of + * {@link EclipseAnnotationHandler} and if one exists, calling it with a freshly cooked up + * instance of {@link AnnotationValues}. + * + * Note that depending on the printASTOnly flag, the {@link lombok.core.PrintAST} annotation + * will either be silently skipped, or everything that isn't <code>PrintAST</code> will be skipped. + * + * The HandlerLibrary will attempt to guess if the given annotation node represents a lombok annotation. + * For example, if <code>lombok.*</code> is in the import list, then this method will guess that + * <code>Getter</code> refers to <code>lombok.Getter</code>, presuming that {@link lombok.javac.handlers.HandleGetter} + * has been loaded. + * + * @param unit The Compilation Unit that contains the Annotation AST Node. + * @param node The Lombok AST Node representing the Annotation AST Node. + * @param annotation 'node.get()' - convenience parameter. + */ public boolean handle(CompilationUnitDeclaration ast, EclipseAST.Node annotationNode, org.eclipse.jdt.internal.compiler.ast.Annotation annotation) { String pkgName = annotationNode.getPackageDeclaration(); @@ -124,6 +181,9 @@ public class HandlerLibrary { return handled; } + /** + * Will call all registered {@link EclipseASTVisitor} instances. + */ public void callASTVisitors(EclipseAST ast) { for ( EclipseASTVisitor visitor : visitorHandlers ) try { ast.traverse(visitor); @@ -133,10 +193,18 @@ public class HandlerLibrary { } } + /** + * Lombok does not currently support triggering annotations in a specified order; the order is essentially + * random right now. This lack of order is particularly annoying for the <code>PrintAST</code> annotation, + * which is almost always intended to run last. Hence, this hack, which lets it in fact run last. + * + * {@see #skipAllButPrintAST} + */ public void skipPrintAST() { skipPrintAST = true; } + /** {@see #skipPrintAST} */ public void skipAllButPrintAST() { skipPrintAST = false; } |