/*
* Copyright (C) 2013-2015 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.eclipse.handlers;
import static lombok.eclipse.Eclipse.*;
import static lombok.core.handlers.HandlerUtil.*;
import static lombok.eclipse.handlers.EclipseHandlerUtil.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration;
import org.eclipse.jdt.internal.compiler.ast.AbstractVariableDeclaration;
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.Expression;
import org.eclipse.jdt.internal.compiler.ast.FalseLiteral;
import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
import org.eclipse.jdt.internal.compiler.ast.FieldReference;
import org.eclipse.jdt.internal.compiler.ast.IfStatement;
import org.eclipse.jdt.internal.compiler.ast.MessageSend;
import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
import org.eclipse.jdt.internal.compiler.ast.OperatorIds;
import org.eclipse.jdt.internal.compiler.ast.ParameterizedQualifiedTypeReference;
import org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference;
import org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference;
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.TrueLiteral;
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.ast.UnaryExpression;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.lookup.ClassScope;
import org.eclipse.jdt.internal.compiler.lookup.MethodScope;
import org.eclipse.jdt.internal.compiler.lookup.TypeConstants;
import org.eclipse.jdt.internal.compiler.lookup.TypeIds;
import org.mangosdk.spi.ProviderFor;
import lombok.AccessLevel;
import lombok.Builder;
import lombok.ConfigurationKeys;
import lombok.Singular;
import lombok.core.AST.Kind;
import lombok.core.handlers.HandlerUtil;
import lombok.core.AnnotationValues;
import lombok.core.HandlerPriority;
import lombok.eclipse.Eclipse;
import lombok.eclipse.EclipseAnnotationHandler;
import lombok.eclipse.EclipseNode;
import lombok.eclipse.handlers.EclipseSingularsRecipes.EclipseSingularizer;
import lombok.eclipse.handlers.EclipseSingularsRecipes.SingularData;
import lombok.eclipse.handlers.HandleConstructor.SkipIfConstructorExists;
import lombok.experimental.NonFinal;
@ProviderFor(EclipseAnnotationHandler.class)
@HandlerPriority(-1024) //-2^10; to ensure we've picked up @FieldDefault's changes (-2048) but @Value hasn't removed itself yet (-512), so that we can error on presence of it on the builder classes.
public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
private static final char[] CLEAN_FIELD_NAME = "$lombokUnclean".toCharArray();
private static final char[] CLEAN_METHOD_NAME = "$lombokClean".toCharArray();
private static final boolean toBoolean(Object expr, boolean defaultValue) {
if (expr == null) return defaultValue;
if (expr instanceof FalseLiteral) return false;
if (expr instanceof TrueLiteral) return true;
return ((Boolean) expr).booleanValue();
}
private static class BuilderFieldData {
TypeReference type;
char[] name;
SingularData singularData;
List<EclipseNode> createdFields = new ArrayList<EclipseNode>();
}
@Override public void handle(AnnotationValues<Builder> annotation, Annotation ast, EclipseNode annotationNode) {
long p = (long) ast.sourceStart << 32 | ast.sourceEnd;
Builder builderInstance = annotation.getInstance();
// These exist just to support the 'old' lombok.experimental.Builder, which had these properties. lombok.Builder no longer has them.
boolean fluent = toBoolean(annotation.getActualExpression("fluent"), true);
boolean chain = toBoolean(annotation.getActualExpression("chain"), true);
String builderMethodName = builderInstance.builderMethodName();
String buildMethodName = builderInstance.buildMethodName();
String builderClassName = builderInstance.builderClassName();
if (builderMethodName == null) builderMethodName = "builder";
if (buildMethodName == null) builderMethodName = "build";
if (builderClassName == null) builderClassName = "";
if (!checkName("builderMethodName", builderMethodName, annotationNode)) return;
if (!checkName("buildMethodName", buildMethodName, annotationNode)) return;
if (!builderClassName.isEmpty()) {
if (!checkName("builderClassName", builderClassName, annotationNode)) return;
}
EclipseNode parent = annotationNode.up();
List<BuilderFieldData> builderFields = new ArrayList<BuilderFieldData>();
TypeReference returnType;
TypeParameter[] typeParams;
TypeReference[] thrownExceptions;
char[] nameOfStaticBuilderMethod;
EclipseNode tdParent;
EclipseNode fillParametersFrom = parent.get() instanceof AbstractMethodDeclaration ? parent : null;
boolean addCleaning = false;
if (parent.get() instanceof TypeDeclaration) {
tdParent = parent;
TypeDeclaration td = (TypeDeclaration) tdParent.get();
List<EclipseNode> allFields = new ArrayList<EclipseNode>();
@SuppressWarnings("deprecation")
boolean valuePresent = (hasAnnotation(lombok.Value.class, parent) || hasAnnotation(lombok.experimental.Value.class, parent));
for (EclipseNode fieldNode : HandleConstructor.findAllFields(tdParent)) {
FieldDeclaration fd = (FieldDeclaration) fieldNode.get();
// final fields with an initializer cannot be written to, so they can't be 'builderized'. Unfortunately presence of @Value makes
// non-final fields final, but @Value's handler hasn't done this yet, so we have to do this math ourselves.
// Value will only skip making a field final if it has an explicit @NonFinal annotation, so we check for that.
if (fd.initialization != null && valuePresent && !hasAnnotation(NonFinal.class, fieldNode)) continue;
BuilderFieldData bfd = new BuilderFieldData();
bfd.name = removePrefixFromField(fieldNode);
bfd.type = fd.type;
bfd.singularData = getSingularData(fieldNode, ast);
builderFields.add(bfd);
allFields.add(fieldNode);
}
new HandleConstructor().generateConstructor(tdParent, AccessLevel.PACKAGE, allFields, null, SkipIfConstructorExists.I_AM_BUILDER, null,
Collections.<Annotation>emptyList(), annotationNode);
returnType = namePlusTypeParamsToTypeReference(td.name, td.typeParameters, p);
typeParams = td.typeParameters;
thrownExceptions = null;
nameOfStaticBuilderMethod = null;
if (builderClassName.isEmpty()) builderClassName = new String(td.name) + "Builder";
} else if (parent.get() instanceof ConstructorDeclaration) {
ConstructorDeclaration cd = (ConstructorDeclaration) parent.get();
if (cd.typeParameters != null && cd.typeParameters.length > 0) {
annotationNode.addError("@Builder is not supported on constructors with constructor type parameters.");
return;
}
tdParent = parent.up();
TypeDeclaration td = (TypeDeclaration) tdParent.get();
returnType = namePlusTypeParamsToTypeReference(td.name, td.typeParameters, p);
typeParams = td.typeParameters;
thrownExceptions = cd.thrownExceptions;
nameOfStaticBuilderMethod = null;
if (builderClassName.isEmpty()) builderClassName = new String(cd.selector) + "Builder";
} else if (parent.get() instanceof MethodDeclaration) {
MethodDeclaration md = (MethodDeclaration) parent.get();
tdParent = parent.up();
if (!md.isStatic()) {
annotationNode.addError("@Builder is only supported on types, constructors, and static methods.");
return;
}
returnType = copyType(md.returnType, ast);
typeParams = md.typeParameters;
thrownExceptions = md.thrownExceptions;
nameOfStaticBuilderMethod = md.selector;
if (builderClassName.isEmpty()) {
char[] token;
if (md.returnType instanceof QualifiedTypeReference) {
char[][] tokens = ((QualifiedTypeReference) md.returnType).tokens;
token = tokens[tokens.length - 1];
} else if (md.returnType instanceof SingleTypeReference) {
token = ((SingleTypeReference) md.returnType).token;
if (!(md.returnType instanceof ParameterizedSingleTypeReference) && typeParams != null) {
for (TypeParameter tp : typeParams) {
if (Arrays.equals(tp.name, token)) {
annotationNode.addError("@Builder requires specifying 'builderClassName' if used on methods with a type parameter as return type.");
return;
}
}
}
} else {
annotationNode.addError("Unexpected kind of return type on annotated method. Specify 'builderClassName' to solve this problem.");
return;
}
if (Character.isLowerCase(token[0])) {
char[] newToken = new char[token.length];
System.arraycopy(token, 1, newToken, 1, token.length - 1);
newToken[0] = Character.toTitleCase(token[0]);
token = newToken;
}
builderClassName = new String(token) + "Builder";
}
} else {
annotationNode.addError("@Builder is only supported on types, constructors, and static methods.");
return;
}
if (fillParametersFrom != null) {
for (EclipseNode param : fillParametersFrom.down()) {
if (param.getKind() != Kind.ARGUMENT) continue;
BuilderFieldData bfd = new BuilderFieldData();
Argument arg = (Argument) param.get();
bfd.name = arg.name;
bfd.type = arg.type;
bfd.singularData = getSingularData(param, ast);
builderFields.add(bfd);
}
}
EclipseNode builderType = findInnerClass(tdParent, builderClassName);
if (builderType == null) {
builderType = makeBuilderClass(tdParent, builderClassName, typeParams, ast);
} else {
sanityCheckForMethodGeneratingAnnotationsOnBuilderClass(builderType, annotationNode);
/* generate errors for @Singular BFDs that have one already defined node. */ {
for (BuilderFieldData bfd : builderFields) {
SingularData sd = bfd.singularData;
if (sd == null) continue;
EclipseSingularizer singularizer = sd.getSingularizer();
if (singularizer == null) continue;
if (singularizer.checkForAlreadyExistingNodesAndGenerateError(builderType, sd)) {
bfd.singularData = null;
}
}
}
}
for (BuilderFieldData bfd : builderFields) {
if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
if (bfd.singularData.getSingularizer().requiresCleaning()) {
addCleaning = true;
break;
}
}
}
generateBuilderFields(builderType, builderFields, ast);
if (addCleaning) {
FieldDeclaration cleanDecl = new FieldDeclaration(CLEAN_FIELD_NAME, 0, -1);
cleanDecl.declarationSourceEnd = -1;
cleanDecl.modifiers = ClassFileConstants.AccPrivate;
cleanDecl.type = TypeReference.baseTypeReference(TypeIds.T_boolean, 0);
System.out.println("INJECTING: cleaning");
injectFieldAndMarkGenerated(builderType, cleanDecl);
}
if (constructorExists(builderType) == MemberExistsResult.NOT_EXISTS) {
ConstructorDeclaration cd = HandleConstructor.createConstructor(
AccessLevel.PACKAGE, builderType, Collections.<EclipseNode>emptyList(), null,
annotationNode, Collections.<Annotation>emptyList());
if (cd != null) injectMethod(builderType, cd);
}
for (BuilderFieldData bfd : builderFields) {
makeSetterMethodsForBuilder(builderType, bfd, annotationNode, fluent, chain);
}
if (methodExists(buildMethodName, builderType, -1) == MemberExistsResult.NOT_EXISTS) {
MethodDeclaration md = generateBuildMethod(buildMethodName, nameOfStaticBuilderMethod, returnType, builderFields, builderType, thrownExceptions, addCleaning, ast);
if (md != null) injectMethod(builderType, md);
}
if (methodExists("toString", builderType, 0) == MemberExistsResult.NOT_EXISTS) {
List<EclipseNode> fieldNodes = new ArrayList<EclipseNode>();
for (BuilderFieldData bfd : builderFields) {
fieldNodes.addAll(bfd.createdFields);
}
MethodDeclaration md = HandleToString.createToString(builderType, fieldNodes, true, false, ast, FieldAccess.ALWAYS_FIELD);
if (md != null) injectMethod(builderType, md);
}
if (addCleaning) {
MethodDeclaration cleanMethod = generateCleanMethod(builderFields, builderType, ast);
if (cleanMethod != null) injectMethod(builderType, cleanMethod);
}
if (methodExists(builderMethodName, tdParent, -1) == MemberExistsResult.NOT_EXISTS) {
MethodDeclaration md = generateBuilderMethod(builderMethodName, builderClassName, tdParent, typeParams, ast);
if (md != null) injectMethod(tdParent, md);
}
}
private MethodDeclaration generateCleanMethod(List<BuilderFieldData> builderFields, EclipseNode builderType, ASTNode source) {
List<Statement> statements = new ArrayList<Statement>();
for (BuilderFieldData bfd : builderFields) {
if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
bfd.singularData.getSingularizer().appendCleaningCode(bfd.singularData, builderType, statements);
}
}
FieldReference thisUnclean = new FieldReference(CLEAN_FIELD_NAME, 0);
thisUnclean.receiver = new ThisReference(0, 0);
statements.add(new Assignment(thisUnclean, new FalseLiteral(0, 0), 0));
MethodDeclaration decl = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
decl.selector = CLEAN_METHOD_NAME;
decl.modifiers = ClassFileConstants.AccPrivate;
decl.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
decl.returnType = TypeReference.baseTypeReference(TypeIds.T_void, 0);
decl.statements = statements.toArray(new Statement[0]);
decl.traverse(new SetGeneratedByVisitor(source), (ClassScope) null);
return decl;
}
public MethodDeclaration generateBuildMethod(String name, char[] staticName, TypeReference returnType, List<BuilderFieldData> builderFields, EclipseNode type, TypeReference[] thrownExceptions, boolean addCleaning, ASTNode source) {
MethodDeclaration out = new MethodDeclaration(
((CompilationUnitDeclaration) type.top().get()).compilationResult);
out.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
List<Statement> statements = new ArrayList<Statement>();
if (addCleaning) {
FieldReference thisUnclean = new FieldReference(CLEAN_FIELD_NAME, 0);
thisUnclean.receiver = new ThisReference(0, 0);
Expression notClean = new UnaryExpression(thisUnclean, OperatorIds.NOT);
MessageSend invokeClean = new MessageSend();
invokeClean.selector = CLEAN_METHOD_NAME;
statements.add(new IfStatement(notClean, invokeClean, 0, 0));
}
for (BuilderFieldData bfd : builderFields) {
if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
bfd.singularData.getSingularizer().appendBuildCode(bfd.singularData, type, statements, bfd.name);
}
}
List<Expression> args = new ArrayList<Expression>();
for (BuilderFieldData bfd : builderFields) {
args.add(new SingleNameReference(bfd.name, 0L));
}
if (addCleaning) {
FieldReference thisUnclean = new FieldReference(CLEAN_FIELD_NAME, 0);
thisUnclean.receiver = new ThisReference(0, 0);
statements.add(new Assignment(thisUnclean, new TrueLiteral(0, 0), 0));
}
out.modifiers = ClassFileConstants.AccPublic;
out.selector = name.toCharArray();
out.thrownExceptions = copyTypes(thrownExceptions);
out.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
out.returnType = returnType;
if (staticName == null) {
AllocationExpression allocationStatement = new AllocationExpression();
allocationStatement.type = copyType(out.returnType);
allocationStatement.arguments = args.isEmpty() ? null : args.toArray(new Expression[args.size()]);
statements.add(new ReturnStatement(allocationStatement, 0, 0));
} else {
MessageSend invoke = new MessageSend();
invoke.selector = staticName;
invoke.receiver = new SingleNameReference(type.up().getName().toCharArray(), 0);
TypeParameter[] tps = ((TypeDeclaration) type.get()).typeParameters;
if (tps != null) {
TypeReference[] trs = new TypeReference[tps.length];
for (int i = 0; i < trs.length; i++) {
trs[i] = new SingleTypeReference(tps[i].name, 0);
}
invoke.typeArguments = trs;
}
invoke.arguments = args.isEmpty() ? null : args.toArray(new Expression[args.size()]);
if (returnType instanceof SingleTypeReference && Arrays.equals(TypeConstants.VOID, ((SingleTypeReference) returnType).token)) {
statements.add(invoke);
} else {
statements.add(new ReturnStatement(invoke, 0, 0));
}
}
out.statements = statements.isEmpty() ? null : statements.toArray(new Statement[statements.size()]);
out.traverse(new SetGeneratedByVisitor(source), (ClassScope) null);
return out;
}
public MethodDeclaration generateBuilderMethod(String builderMethodName, String builderClassName, EclipseNode type, TypeParameter[] typeParams, ASTNode source) {
int pS = source.sourceStart, pE = source.sourceEnd;
long p = (long) pS << 32 | pE;
MethodDeclaration out = new MethodDeclaration(
((CompilationUnitDeclaration) type.top().get()).compilationResult);
out.selector = builderMethodName.toCharArray();
out.modifiers = ClassFileConstants.AccPublic | ClassFileConstants.AccStatic;
out.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
out.returnType = namePlusTypeParamsToTypeReference(builderClassName.toCharArray(), typeParams, p);
out.typeParameters = copyTypeParams(typeParams, source);
AllocationExpression invoke = new AllocationExpression();
invoke.type = namePlusTypeParamsToTypeReference(builderClassName.toCharArray(), typeParams, p);
out.statements = new Statement[] {new ReturnStatement(invoke, pS, pE)};
out.traverse(new SetGeneratedByVisitor(source), ((TypeDeclaration) type.get()).scope);
return out;
}
public void generateBuilderFields(EclipseNode builderType, List<BuilderFieldData> builderFields, ASTNode source) {
List<EclipseNode> existing = new ArrayList<EclipseNode>();
for (EclipseNode child : builderType.down()) {
if (child.getKind() == Kind.FIELD) existing.add(child);
}
top:
for (BuilderFieldData bfd : builderFields) {
if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
bfd.createdFields.addAll(bfd.singularData.getSingularizer().generateFields(bfd.singularData, builderType));
} else {
for (EclipseNode exists : existing) {
char[] n = ((FieldDeclaration) exists.get()).name;
if (Arrays.equals(n, bfd.name)) {
bfd.createdFields.add(exists);
continue top;
}
}
FieldDeclaration fd = new FieldDeclaration(bfd.name, 0, 0);
fd.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
fd.modifiers = ClassFileConstants.AccPrivate;
fd.type = copyType(bfd.type);
fd.traverse(new SetGeneratedByVisitor(source), (MethodScope) null);
bfd.createdFields.add(injectFieldAndMarkGenerated(builderType, fd));
}
}
}
private static final AbstractMethodDeclaration[] EMPTY = {};
public void makeSetterMethodsForBuilder(EclipseNode builderType, BuilderFieldData bfd, EclipseNode sourceNode, boolean fluent, boolean chain) {
if (bfd.singularData == null || bfd.singularData.getSingularizer() == null) {
makeSimpleSetterMethodForBuilder(builderType, bfd.createdFields.get(0), sourceNode, fluent, chain);
} else {
bfd.singularData.getSingularizer().generateMethods(bfd.singularData, builderType, fluent, chain);
}
}
private void makeSimpleSetterMethodForBuilder(EclipseNode builderType, EclipseNode fieldNode, EclipseNode sourceNode, boolean fluent, boolean chain) {
TypeDeclaration td = (TypeDeclaration) builderType.get();
AbstractMethodDeclaration[] existing = td.methods;
if (existing == null) existing = EMPTY;
int len = existing.length;
FieldDeclaration fd = (FieldDeclaration) fieldNode.get();
char[] name = fd.name;
for (int i = 0; i < len; i++) {
if (!(existing[i] instanceof MethodDeclaration)) continue;
char[] existingName = existing[i].selector;
if (Arrays.equals(name, existingName)) return;
}
String setterName = fluent ? fieldNode.getName() : HandlerUtil.buildAccessorName("set", fieldNode.getName());
MethodDeclaration setter = HandleSetter.createSetter(td, fieldNode, setterName, chain, ClassFileConstants.AccPublic,
sourceNode, Collections.<Annotation>emptyList(), Collections.<Annotation>emptyList());
injectMethod(builderType, setter);
}
public EclipseNode findInnerClass(EclipseNode parent, String name) {
char[] c = name.toCharArray();
for (EclipseNode child : parent.down()) {
if (child.getKind() != Kind.TYPE) continue;
TypeDeclaration td = (TypeDeclaration) child.get();
if (Arrays.equals(td.name, c)) return child;
}
return null;
}
public EclipseNode makeBuilderClass(EclipseNode tdParent, String builderClassName, TypeParameter[] typeParams, ASTNode source) {
TypeDeclaration parent = (TypeDeclaration) tdParent.get();
TypeDeclaration builder = new TypeDeclaration(parent.compilationResult);
builder.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
builder.modifiers |= ClassFileConstants.AccPublic | ClassFileConstants.AccStatic;
builder.typeParameters = copyTypeParams(typeParams, source);
builder.name = builderClassName.toCharArray();
builder.traverse(new SetGeneratedByVisitor(source), (ClassScope) null);
return injectType(tdParent, builder);
}
/**
* Returns the explicitly requested singular annotation on this node (field
* or parameter), or null if there's no {@code @Singular} annotation on it.
*
* @param node The node (field or method param) to inspect for its name and potential {@code @Singular} annotation.
*/
private SingularData getSingularData(EclipseNode node, ASTNode source) {
for (EclipseNode child : node.down()) {
if (child.getKind() == Kind.ANNOTATION && annotationTypeMatches(Singular.class, child)) {
char[] pluralName = node.getKind() == Kind.FIELD ? removePrefixFromField(node) : ((AbstractVariableDeclaration) node.get()).name;
AnnotationValues<Singular> ann = createAnnotation(Singular.class, child);
String explicitSingular = ann.getInstance().value();
if (explicitSingular.isEmpty()) {
if (Boolean.FALSE.equals(node.getAst().readConfiguration(ConfigurationKeys.SINGULAR_AUTO))) {
node.addError("The singular must be specified explicitly (e.g. @Singular(\"task\")) because auto singularization is disabled.");
explicitSingular = new String(pluralName);
} else {
explicitSingular = autoSingularize(node.getName());
if (explicitSingular == null) {
node.addError("Can't singularize this name; please specify the singular explicitly (i.e. @Singular(\"sheep\"))");
explicitSingular = new String(pluralName);
}
}
}
char[] singularName = explicitSingular.toCharArray();
TypeReference type = ((AbstractVariableDeclaration) node.get()).type;
TypeReference[] typeArgs = null;
String typeName;
if (type instanceof ParameterizedSingleTypeReference) {
typeArgs = ((ParameterizedSingleTypeReference) type).typeArguments;
typeName = new String(((ParameterizedSingleTypeReference) type).token);
} else if (type instanceof ParameterizedQualifiedTypeReference) {
TypeReference[][] tr = ((ParameterizedQualifiedTypeReference) type).typeArguments;
if (tr != null) typeArgs = tr[tr.length - 1];
char[][] tokens = ((ParameterizedQualifiedTypeReference) type).tokens;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < tokens.length; i++) {
if (i > 0) sb.append(".");
sb.append(tokens[i]);
}
typeName = sb.toString();
} else {
typeName = type.toString();
}
String targetFqn = EclipseSingularsRecipes.get().toQualified(typeName);
EclipseSingularizer singularizer = EclipseSingularsRecipes.get().getSingularizer(targetFqn);
if (singularizer == null) {
node.addError("Lombok does not know how to create the singular-form builder methods for type '" + typeName + "'; they won't be generated.");
return null;
}
return new SingularData(child, singularName, pluralName, typeArgs == null ? Collections.<TypeReference>emptyList() : Arrays.asList(typeArgs), targetFqn, singularizer, source);
}
}
return null;
}
}