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authorReinier Zwitserloot <reinier@tipit.to>2009-11-25 07:32:49 +0100
committerReinier Zwitserloot <reinier@tipit.to>2009-11-25 07:32:49 +0100
commit1a0e611a9c5e1ee518670647ce1a44beae559b44 (patch)
treee5ef8f671bc6688f486e874d4e2e1a7813e4f0b2 /src/lombok/eclipse/handlers/HandleData.java
parent7fd947ea40c25dad9ee543ebc4b92de9a2e05efc (diff)
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Refactored the source folders.
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-rw-r--r--src/lombok/eclipse/handlers/HandleData.java243
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diff --git a/src/lombok/eclipse/handlers/HandleData.java b/src/lombok/eclipse/handlers/HandleData.java
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-/*
- * 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.handlers;
-
-import static lombok.eclipse.Eclipse.*;
-import static lombok.eclipse.handlers.EclipseHandlerUtil.*;
-
-import java.lang.reflect.Modifier;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-
-import lombok.AccessLevel;
-import lombok.Data;
-import lombok.core.AnnotationValues;
-import lombok.core.TransformationsUtil;
-import lombok.core.AST.Kind;
-import lombok.eclipse.Eclipse;
-import lombok.eclipse.EclipseAnnotationHandler;
-import lombok.eclipse.EclipseNode;
-import lombok.eclipse.handlers.EclipseHandlerUtil.MemberExistsResult;
-
-import org.eclipse.jdt.internal.compiler.ast.ASTNode;
-import org.eclipse.jdt.internal.compiler.ast.AllocationExpression;
-import org.eclipse.jdt.internal.compiler.ast.Annotation;
-import org.eclipse.jdt.internal.compiler.ast.Argument;
-import org.eclipse.jdt.internal.compiler.ast.Assignment;
-import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
-import org.eclipse.jdt.internal.compiler.ast.ConstructorDeclaration;
-import org.eclipse.jdt.internal.compiler.ast.ExplicitConstructorCall;
-import org.eclipse.jdt.internal.compiler.ast.Expression;
-import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
-import org.eclipse.jdt.internal.compiler.ast.FieldReference;
-import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
-import org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference;
-import org.eclipse.jdt.internal.compiler.ast.ReturnStatement;
-import org.eclipse.jdt.internal.compiler.ast.SingleNameReference;
-import org.eclipse.jdt.internal.compiler.ast.SingleTypeReference;
-import org.eclipse.jdt.internal.compiler.ast.Statement;
-import org.eclipse.jdt.internal.compiler.ast.ThisReference;
-import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
-import org.eclipse.jdt.internal.compiler.ast.TypeParameter;
-import org.eclipse.jdt.internal.compiler.ast.TypeReference;
-import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
-import org.mangosdk.spi.ProviderFor;
-
-/**
- * Handles the {@code lombok.Data} annotation for eclipse.
- */
-@ProviderFor(EclipseAnnotationHandler.class)
-public class HandleData implements EclipseAnnotationHandler<Data> {
- public boolean handle(AnnotationValues<Data> annotation, Annotation ast, EclipseNode annotationNode) {
- Data ann = annotation.getInstance();
- EclipseNode typeNode = annotationNode.up();
-
- TypeDeclaration typeDecl = null;
- if (typeNode.get() instanceof TypeDeclaration) typeDecl = (TypeDeclaration) typeNode.get();
- int modifiers = typeDecl == null ? 0 : typeDecl.modifiers;
- boolean notAClass = (modifiers &
- (ClassFileConstants.AccInterface | ClassFileConstants.AccAnnotation | ClassFileConstants.AccEnum)) != 0;
-
- if (typeDecl == null || notAClass) {
- annotationNode.addError("@Data is only supported on a class.");
- return false;
- }
-
- List<EclipseNode> nodesForConstructor = new ArrayList<EclipseNode>();
- for (EclipseNode child : typeNode.down()) {
- if (child.getKind() != Kind.FIELD) continue;
- FieldDeclaration fieldDecl = (FieldDeclaration) child.get();
- //Skip fields that start with $
- if (fieldDecl.name.length > 0 && fieldDecl.name[0] == '$') continue;
- //Skip static fields.
- if ((fieldDecl.modifiers & ClassFileConstants.AccStatic) != 0) continue;
- boolean isFinal = (fieldDecl.modifiers & ClassFileConstants.AccFinal) != 0;
- boolean isNonNull = findAnnotations(fieldDecl, TransformationsUtil.NON_NULL_PATTERN).length != 0;
- if ((isFinal || isNonNull) && fieldDecl.initialization == null) nodesForConstructor.add(child);
- new HandleGetter().generateGetterForField(child, annotationNode.get());
- if (!isFinal) new HandleSetter().generateSetterForField(child, annotationNode.get());
- }
-
- new HandleToString().generateToStringForType(typeNode, annotationNode);
- new HandleEqualsAndHashCode().generateEqualsAndHashCodeForType(typeNode, annotationNode);
-
- //Careful: Generate the public static constructor (if there is one) LAST, so that any attempt to
- //'find callers' on the annotation node will find callers of the constructor, which is by far the
- //most useful of the many methods built by @Data. This trick won't work for the non-static constructor,
- //for whatever reason, though you can find callers of that one by focusing on the class name itself
- //and hitting 'find callers'.
-
- if (constructorExists(typeNode) == MemberExistsResult.NOT_EXISTS) {
- ConstructorDeclaration constructor = createConstructor(
- ann.staticConstructor().length() == 0, typeNode, nodesForConstructor, ast);
- injectMethod(typeNode, constructor);
- }
-
- if (ann.staticConstructor().length() > 0) {
- if (methodExists("of", typeNode) == MemberExistsResult.NOT_EXISTS) {
- MethodDeclaration staticConstructor = createStaticConstructor(
- ann.staticConstructor(), typeNode, nodesForConstructor, ast);
- injectMethod(typeNode, staticConstructor);
- }
- }
-
- return false;
- }
-
- private ConstructorDeclaration createConstructor(boolean isPublic,
- EclipseNode type, Collection<EclipseNode> fields, ASTNode source) {
- long p = (long)source.sourceStart << 32 | source.sourceEnd;
-
- ConstructorDeclaration constructor = new ConstructorDeclaration(
- ((CompilationUnitDeclaration) type.top().get()).compilationResult);
- Eclipse.setGeneratedBy(constructor, source);
-
- constructor.modifiers = EclipseHandlerUtil.toEclipseModifier(isPublic ? AccessLevel.PUBLIC : AccessLevel.PRIVATE);
- constructor.annotations = null;
- constructor.selector = ((TypeDeclaration)type.get()).name;
- constructor.constructorCall = new ExplicitConstructorCall(ExplicitConstructorCall.ImplicitSuper);
- Eclipse.setGeneratedBy(constructor.constructorCall, source);
- constructor.thrownExceptions = null;
- constructor.typeParameters = null;
- constructor.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
- constructor.bodyStart = constructor.declarationSourceStart = constructor.sourceStart = source.sourceStart;
- constructor.bodyEnd = constructor.declarationSourceEnd = constructor.sourceEnd = source.sourceEnd;
- constructor.arguments = null;
-
- List<Argument> args = new ArrayList<Argument>();
- List<Statement> assigns = new ArrayList<Statement>();
- List<Statement> nullChecks = new ArrayList<Statement>();
-
- for (EclipseNode fieldNode : fields) {
- FieldDeclaration field = (FieldDeclaration) fieldNode.get();
- FieldReference thisX = new FieldReference(("this." + new String(field.name)).toCharArray(), p);
- Eclipse.setGeneratedBy(thisX, source);
- thisX.receiver = new ThisReference((int)(p >> 32), (int)p);
- Eclipse.setGeneratedBy(thisX.receiver, source);
- thisX.token = field.name;
-
- SingleNameReference assignmentNameRef = new SingleNameReference(field.name, p);
- Eclipse.setGeneratedBy(assignmentNameRef, source);
- Assignment assignment = new Assignment(thisX, assignmentNameRef, (int)p);
- Eclipse.setGeneratedBy(assignment, source);
- assigns.add(assignment);
- long fieldPos = (((long)field.sourceStart) << 32) | field.sourceEnd;
- Argument argument = new Argument(field.name, fieldPos, copyType(field.type, source), Modifier.FINAL);
- Eclipse.setGeneratedBy(argument, source);
- Annotation[] nonNulls = findAnnotations(field, TransformationsUtil.NON_NULL_PATTERN);
- Annotation[] nullables = findAnnotations(field, TransformationsUtil.NULLABLE_PATTERN);
- if (nonNulls.length != 0) {
- Statement nullCheck = generateNullCheck(field, source);
- if (nullCheck != null) nullChecks.add(nullCheck);
- }
- Annotation[] copiedAnnotations = copyAnnotations(nonNulls, nullables, source);
- if (copiedAnnotations.length != 0) argument.annotations = copiedAnnotations;
- args.add(argument);
- }
-
- nullChecks.addAll(assigns);
- constructor.statements = nullChecks.isEmpty() ? null : nullChecks.toArray(new Statement[nullChecks.size()]);
- constructor.arguments = args.isEmpty() ? null : args.toArray(new Argument[args.size()]);
- return constructor;
- }
-
- private MethodDeclaration createStaticConstructor(String name, EclipseNode type, Collection<EclipseNode> fields, ASTNode source) {
- int pS = source.sourceStart, pE = source.sourceEnd;
- long p = (long)pS << 32 | pE;
-
- MethodDeclaration constructor = new MethodDeclaration(
- ((CompilationUnitDeclaration) type.top().get()).compilationResult);
- Eclipse.setGeneratedBy(constructor, source);
-
- constructor.modifiers = EclipseHandlerUtil.toEclipseModifier(AccessLevel.PUBLIC) | Modifier.STATIC;
- TypeDeclaration typeDecl = (TypeDeclaration) type.get();
- if (typeDecl.typeParameters != null && typeDecl.typeParameters.length > 0) {
- TypeReference[] refs = new TypeReference[typeDecl.typeParameters.length];
- int idx = 0;
- for (TypeParameter param : typeDecl.typeParameters) {
- TypeReference typeRef = new SingleTypeReference(param.name, (long)param.sourceStart << 32 | param.sourceEnd);
- Eclipse.setGeneratedBy(typeRef, source);
- refs[idx++] = typeRef;
- }
- constructor.returnType = new ParameterizedSingleTypeReference(typeDecl.name, refs, 0, p);
- } else constructor.returnType = new SingleTypeReference(((TypeDeclaration)type.get()).name, p);
- Eclipse.setGeneratedBy(constructor.returnType, source);
- constructor.annotations = null;
- constructor.selector = name.toCharArray();
- constructor.thrownExceptions = null;
- constructor.typeParameters = copyTypeParams(((TypeDeclaration)type.get()).typeParameters, source);
- constructor.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
- constructor.bodyStart = constructor.declarationSourceStart = constructor.sourceStart = source.sourceStart;
- constructor.bodyEnd = constructor.declarationSourceEnd = constructor.sourceEnd = source.sourceEnd;
-
- List<Argument> args = new ArrayList<Argument>();
- List<Expression> assigns = new ArrayList<Expression>();
- AllocationExpression statement = new AllocationExpression();
- statement.sourceStart = pS; statement.sourceEnd = pE;
- Eclipse.setGeneratedBy(statement, source);
- statement.type = copyType(constructor.returnType, source);
-
- for (EclipseNode fieldNode : fields) {
- FieldDeclaration field = (FieldDeclaration) fieldNode.get();
- long fieldPos = (((long)field.sourceStart) << 32) | field.sourceEnd;
- SingleNameReference nameRef = new SingleNameReference(field.name, fieldPos);
- Eclipse.setGeneratedBy(nameRef, source);
- assigns.add(nameRef);
-
- Argument argument = new Argument(field.name, fieldPos, copyType(field.type, source), 0);
- Eclipse.setGeneratedBy(argument, source);
-
- Annotation[] copiedAnnotations = copyAnnotations(
- findAnnotations(field, TransformationsUtil.NON_NULL_PATTERN),
- findAnnotations(field, TransformationsUtil.NULLABLE_PATTERN), source);
- if (copiedAnnotations.length != 0) argument.annotations = copiedAnnotations;
- args.add(new Argument(field.name, fieldPos, copyType(field.type, source), Modifier.FINAL));
- }
-
- statement.arguments = assigns.isEmpty() ? null : assigns.toArray(new Expression[assigns.size()]);
- constructor.arguments = args.isEmpty() ? null : args.toArray(new Argument[args.size()]);
- constructor.statements = new Statement[] { new ReturnStatement(statement, (int)(p >> 32), (int)p) };
- Eclipse.setGeneratedBy(constructor.statements[0], source);
- return constructor;
- }
-}