diff options
Diffstat (limited to 'src/core/lombok')
| -rw-r--r-- | src/core/lombok/eclipse/handlers/HandleEqualsAndHashCode.java | 23 | ||||
| -rw-r--r-- | src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java | 22 |
2 files changed, 32 insertions, 13 deletions
diff --git a/src/core/lombok/eclipse/handlers/HandleEqualsAndHashCode.java b/src/core/lombok/eclipse/handlers/HandleEqualsAndHashCode.java index 0c82b74c..6990e609 100644 --- a/src/core/lombok/eclipse/handlers/HandleEqualsAndHashCode.java +++ b/src/core/lombok/eclipse/handlers/HandleEqualsAndHashCode.java @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2012 The Project Lombok Authors. + * Copyright (C) 2009-2013 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 @@ -204,18 +204,27 @@ public class HandleEqualsAndHashCode extends EclipseAnnotationHandler<EqualsAndH } boolean isFinal = (typeDecl.modifiers & ClassFileConstants.AccFinal) != 0; - boolean needsCanEqual = !isDirectDescendantOfObject || !isFinal; - java.util.List<MemberExistsResult> existsResults = new ArrayList<MemberExistsResult>(); - existsResults.add(methodExists("equals", typeNode, 1)); - existsResults.add(methodExists("hashCode", typeNode, 0)); - existsResults.add(methodExists("canEqual", typeNode, 1)); - switch (Collections.max(existsResults)) { + boolean needsCanEqual = !isFinal || !isDirectDescendantOfObject; + MemberExistsResult equalsExists = methodExists("equals", typeNode, 1); + MemberExistsResult hashCodeExists = methodExists("hashCode", typeNode, 0); + MemberExistsResult canEqualExists = methodExists("canEqual", typeNode, 1); + switch (Collections.max(Arrays.asList(equalsExists, hashCodeExists, canEqualExists))) { case EXISTS_BY_LOMBOK: return; case EXISTS_BY_USER: if (whineIfExists) { String msg = String.format("Not generating equals%s: A method with one of those names already exists. (Either all or none of these methods will be generated).", needsCanEqual ? ", hashCode and canEquals" : " and hashCode"); errorNode.addWarning(msg); + } else if (equalsExists == MemberExistsResult.NOT_EXISTS || hashCodeExists == MemberExistsResult.NOT_EXISTS) { + // This means equals OR hashCode exists and not both (or neither, but canEqual is there). + // Even though we should suppress the message about not generating these, this is such a weird and surprising situation we should ALWAYS generate a warning. + // The user code couldn't possibly (barring really weird subclassing shenanigans) be in a shippable state anyway; the implementations of these 3 methods are + // all inter-related and should be written by the same entity. + String msg = String.format("Not generating %s: One of equals, hashCode, and canEqual exists. " + + "You should either write all of these are none of these (in the latter case, lombok generates them).", + equalsExists == MemberExistsResult.NOT_EXISTS && hashCodeExists == MemberExistsResult.NOT_EXISTS ? "equals and hashCode" : + equalsExists == MemberExistsResult.NOT_EXISTS ? "equals" : "hashCode"); + errorNode.addWarning(msg); } return; case NOT_EXISTS: diff --git a/src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java b/src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java index 5f69be9d..3b1e226f 100644 --- a/src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java +++ b/src/core/lombok/javac/handlers/HandleEqualsAndHashCode.java @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2012 The Project Lombok Authors. + * Copyright (C) 2009-2013 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 @@ -25,6 +25,7 @@ import static lombok.javac.Javac.*; import static lombok.javac.handlers.JavacHandlerUtil.*; import java.util.ArrayList; +import java.util.Arrays; import java.util.Collections; import lombok.EqualsAndHashCode; @@ -178,17 +179,26 @@ public class HandleEqualsAndHashCode extends JavacAnnotationHandler<EqualsAndHas boolean isFinal = (((JCClassDecl)typeNode.get()).mods.flags & Flags.FINAL) != 0; boolean needsCanEqual = !isFinal || !isDirectDescendantOfObject; - java.util.List<MemberExistsResult> existsResults = new ArrayList<MemberExistsResult>(); - existsResults.add(methodExists("equals", typeNode, 1)); - existsResults.add(methodExists("hashCode", typeNode, 0)); - existsResults.add(methodExists("canEqual", typeNode, 1)); - switch (Collections.max(existsResults)) { + MemberExistsResult equalsExists = methodExists("equals", typeNode, 1); + MemberExistsResult hashCodeExists = methodExists("hashCode", typeNode, 0); + MemberExistsResult canEqualExists = methodExists("canEqual", typeNode, 1); + switch (Collections.max(Arrays.asList(equalsExists, hashCodeExists, canEqualExists))) { case EXISTS_BY_LOMBOK: return; case EXISTS_BY_USER: if (whineIfExists) { String msg = String.format("Not generating equals%s: A method with one of those names already exists. (Either all or none of these methods will be generated).", needsCanEqual ? ", hashCode and canEquals" : " and hashCode"); source.addWarning(msg); + } else if (equalsExists == MemberExistsResult.NOT_EXISTS || hashCodeExists == MemberExistsResult.NOT_EXISTS) { + // This means equals OR hashCode exists and not both (or neither, but canEqual is there). + // Even though we should suppress the message about not generating these, this is such a weird and surprising situation we should ALWAYS generate a warning. + // The user code couldn't possibly (barring really weird subclassing shenanigans) be in a shippable state anyway; the implementations of these 3 methods are + // all inter-related and should be written by the same entity. + String msg = String.format("Not generating %s: One of equals, hashCode, and canEqual exists. " + + "You should either write all of these are none of these (in the latter case, lombok generates them).", + equalsExists == MemberExistsResult.NOT_EXISTS && hashCodeExists == MemberExistsResult.NOT_EXISTS ? "equals and hashCode" : + equalsExists == MemberExistsResult.NOT_EXISTS ? "equals" : "hashCode"); + source.addWarning(msg); } return; case NOT_EXISTS: |