diff options
Diffstat (limited to 'src/lombok/javac/handlers/HandleEqualsAndHashCode.java')
-rw-r--r-- | src/lombok/javac/handlers/HandleEqualsAndHashCode.java | 83 |
1 files changed, 46 insertions, 37 deletions
diff --git a/src/lombok/javac/handlers/HandleEqualsAndHashCode.java b/src/lombok/javac/handlers/HandleEqualsAndHashCode.java index 8c3124c9..16a04da7 100644 --- a/src/lombok/javac/handlers/HandleEqualsAndHashCode.java +++ b/src/lombok/javac/handlers/HandleEqualsAndHashCode.java @@ -22,7 +22,6 @@ package lombok.javac.handlers; import static lombok.javac.handlers.PKG.*; - import lombok.EqualsAndHashCode; import lombok.core.AnnotationValues; import lombok.core.AST.Kind; @@ -59,35 +58,33 @@ import com.sun.tools.javac.util.Name; */ @ProviderFor(JavacAnnotationHandler.class) public class HandleEqualsAndHashCode implements JavacAnnotationHandler<EqualsAndHashCode> { - private void checkForBogusExcludes(Node type, AnnotationValues<EqualsAndHashCode> annotation) { - List<String> list = List.from(annotation.getInstance().exclude()); - boolean[] matched = new boolean[list.size()]; - - for ( Node child : type.down() ) { - if ( list.isEmpty() ) break; - if ( child.getKind() != Kind.FIELD ) continue; - if ( (((JCVariableDecl)child.get()).mods.flags & Flags.STATIC) != 0 ) continue; - if ( (((JCVariableDecl)child.get()).mods.flags & Flags.TRANSIENT) != 0 ) continue; - int idx = list.indexOf(child.getName()); - if ( idx > -1 ) matched[idx] = true; - } - - for ( int i = 0 ; i < list.size() ; i++ ) { - if ( !matched[i] ) { + private void checkForBogusFieldNames(Node type, AnnotationValues<EqualsAndHashCode> annotation) { + if ( annotation.isExplicit("exclude") ) { + for ( int i : createListOfNonExistentFields(List.from(annotation.getInstance().exclude()), type, true, true) ) { annotation.setWarning("exclude", "This field does not exist, or would have been excluded anyway.", i); } } + if ( annotation.isExplicit("of") ) { + for ( int i : createListOfNonExistentFields(List.from(annotation.getInstance().of()), type, false, false) ) { + annotation.setWarning("of", "This field does not exist.", i); + } + } } @Override public boolean handle(AnnotationValues<EqualsAndHashCode> annotation, JCAnnotation ast, Node annotationNode) { EqualsAndHashCode ann = annotation.getInstance(); List<String> excludes = List.from(ann.exclude()); + List<String> includes = List.from(ann.of()); Node typeNode = annotationNode.up(); - checkForBogusExcludes(typeNode, annotation); + checkForBogusFieldNames(typeNode, annotation); - return generateMethods(typeNode, annotationNode, excludes, - ann.callSuper(), annotation.getRawExpression("callSuper") == null, true); + Boolean callSuper = ann.callSuper(); + if ( !annotation.isExplicit("callSuper") ) callSuper = null; + if ( !annotation.isExplicit("exclude") ) excludes = null; + if ( !annotation.isExplicit("of") ) includes = null; + + return generateMethods(typeNode, annotationNode, excludes, includes, callSuper, true); } public void generateEqualsAndHashCodeForType(Node typeNode, Node errorNode) { @@ -100,15 +97,11 @@ public class HandleEqualsAndHashCode implements JavacAnnotationHandler<EqualsAnd } } - boolean callSuper = false; - try { - callSuper = ((Boolean)EqualsAndHashCode.class.getMethod("callSuper").getDefaultValue()).booleanValue(); - } catch ( Exception ignore ) {} - generateMethods(typeNode, errorNode, List.<String>nil(), callSuper, true, false); + generateMethods(typeNode, errorNode, null, null, null, false); } - private boolean generateMethods(Node typeNode, Node errorNode, List<String> excludes, - boolean callSuper, boolean implicit, boolean whineIfExists) { + private boolean generateMethods(Node typeNode, Node errorNode, List<String> excludes, List<String> includes, + Boolean callSuper, boolean whineIfExists) { boolean notAClass = true; if ( typeNode.get() instanceof JCClassDecl ) { long flags = ((JCClassDecl)typeNode.get()).mods.flags; @@ -121,6 +114,12 @@ public class HandleEqualsAndHashCode implements JavacAnnotationHandler<EqualsAnd } boolean isDirectDescendantOfObject = true; + boolean implicitCallSuper = callSuper == null; + if ( callSuper == null ) { + try { + callSuper = ((Boolean)EqualsAndHashCode.class.getMethod("callSuper").getDefaultValue()).booleanValue(); + } catch ( Exception ignore ) {} + } JCTree extending = ((JCClassDecl)typeNode.get()).extending; if ( extending != null ) { @@ -133,21 +132,31 @@ public class HandleEqualsAndHashCode implements JavacAnnotationHandler<EqualsAnd return true; } - if ( !isDirectDescendantOfObject && !callSuper && implicit ) { + if ( !isDirectDescendantOfObject && !callSuper && implicitCallSuper ) { errorNode.addWarning("Generating equals/hashCode implementation but without a call to superclass, even though this class does not extend java.lang.Object. If this is intentional, add '@EqualsAndHashCode(callSuper=false)' to your type."); } List<Node> nodesForEquality = List.nil(); - for ( Node child : typeNode.down() ) { - if ( child.getKind() != Kind.FIELD ) continue; - JCVariableDecl fieldDecl = (JCVariableDecl) child.get(); - //Skip static fields. - if ( (fieldDecl.mods.flags & Flags.STATIC) != 0 ) continue; - //Skip transient fields. - if ( (fieldDecl.mods.flags & Flags.TRANSIENT) != 0 ) continue; - //Skip excluded fields. - if ( excludes.contains(fieldDecl.name.toString()) ) continue; - nodesForEquality = nodesForEquality.append(child); + if ( includes != null ) { + for ( Node child : typeNode.down() ) { + if ( child.getKind() != Kind.FIELD ) continue; + JCVariableDecl fieldDecl = (JCVariableDecl) child.get(); + if ( includes.contains(fieldDecl.name.toString()) ) nodesForEquality = nodesForEquality.append(child); + } + } else { + for ( Node child : typeNode.down() ) { + if ( child.getKind() != Kind.FIELD ) continue; + JCVariableDecl fieldDecl = (JCVariableDecl) child.get(); + //Skip static fields. + if ( (fieldDecl.mods.flags & Flags.STATIC) != 0 ) continue; + //Skip transient fields. + if ( (fieldDecl.mods.flags & Flags.TRANSIENT) != 0 ) continue; + //Skip excluded fields. + if ( excludes != null && excludes.contains(fieldDecl.name.toString()) ) continue; + //Skip fields that start with $ + if ( fieldDecl.name.toString().startsWith("$") ) continue; + nodesForEquality = nodesForEquality.append(child); + } } switch ( methodExists("hashCode", typeNode) ) { |