Examples with TypeDeclaration org.eclipse.jdt.internal.compiler.ast.TypeDeclaration used on opensource projects

Example 26 with TypeDeclaration

use of org.eclipse.jdt.internal.compiler.ast.TypeDeclaration in project lombok by rzwitserloot.

the class HandleExtensionMethod method handle.

@Override
public void handle(AnnotationValues<ExtensionMethod> annotation, Annotation ast, EclipseNode annotationNode) {
    handleExperimentalFlagUsage(annotationNode, ConfigurationKeys.EXTENSION_METHOD_FLAG_USAGE, "@ExtensionMethod");
    TypeDeclaration typeDecl = null;
    EclipseNode owner = annotationNode.up();
    if (owner.get() instanceof TypeDeclaration)
        typeDecl = (TypeDeclaration) owner.get();
    int modifiers = typeDecl == null ? 0 : typeDecl.modifiers;
    boolean notAClass = (modifiers & (ClassFileConstants.AccInterface | ClassFileConstants.AccAnnotation)) != 0;
    if (typeDecl == null || notAClass) {
        annotationNode.addError("@ExtensionMethod is legal only on classes and enums.");
        return;
    }
    List<Object> listenerInterfaces = annotation.getActualExpressions("value");
    if (listenerInterfaces.isEmpty()) {
        annotationNode.addWarning(String.format("@ExtensionMethod has no effect since no extension types were specified."));
        return;
    }
}

Example 27 with TypeDeclaration

use of org.eclipse.jdt.internal.compiler.ast.TypeDeclaration in project lombok by rzwitserloot.

the class EclipseHandlerUtil method injectMethod.

/**
	 * Inserts a method into an existing type. The type must represent a {@code TypeDeclaration}.
	 */
public static EclipseNode injectMethod(EclipseNode type, AbstractMethodDeclaration method) {
    method.annotations = addSuppressWarningsAll(type, method, method.annotations);
    method.annotations = addGenerated(type, method, method.annotations);
    TypeDeclaration parent = (TypeDeclaration) type.get();
    if (parent.methods == null) {
        parent.methods = new AbstractMethodDeclaration[1];
        parent.methods[0] = method;
    } else {
        if (method instanceof ConstructorDeclaration) {
            for (int i = 0; i < parent.methods.length; i++) {
                if (parent.methods[i] instanceof ConstructorDeclaration && (parent.methods[i].bits & ASTNode.IsDefaultConstructor) != 0) {
                    EclipseNode tossMe = type.getNodeFor(parent.methods[i]);
                    AbstractMethodDeclaration[] withoutGeneratedConstructor = new AbstractMethodDeclaration[parent.methods.length - 1];
                    System.arraycopy(parent.methods, 0, withoutGeneratedConstructor, 0, i);
                    System.arraycopy(parent.methods, i + 1, withoutGeneratedConstructor, i, parent.methods.length - i - 1);
                    parent.methods = withoutGeneratedConstructor;
                    if (tossMe != null)
                        tossMe.up().removeChild(tossMe);
                    break;
                }
            }
        }
        //We insert the method in the last position of the methods registered to the type
        //When changing this behavior, this may trigger issue #155 and #377
        AbstractMethodDeclaration[] newArray = new AbstractMethodDeclaration[parent.methods.length + 1];
        System.arraycopy(parent.methods, 0, newArray, 0, parent.methods.length);
        newArray[parent.methods.length] = method;
        parent.methods = newArray;
    }
    return type.add(method, Kind.METHOD);
}

Example 28 with TypeDeclaration

use of org.eclipse.jdt.internal.compiler.ast.TypeDeclaration in project lombok by rzwitserloot.

the class HandleBuilder method handle.

@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();
    String toBuilderMethodName = "toBuilder";
    boolean toBuilder = builderInstance.toBuilder();
    List<char[]> typeArgsForToBuilder = null;
    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;
    boolean isStatic = true;
    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();
            // 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.rawName = fieldNode.getName().toCharArray();
            bfd.name = removePrefixFromField(fieldNode);
            bfd.type = fd.type;
            bfd.singularData = getSingularData(fieldNode, ast);
            addObtainVia(bfd, fieldNode);
            builderFields.add(bfd);
            allFields.add(fieldNode);
        }
        new HandleConstructor().generateConstructor(tdParent, AccessLevel.PACKAGE, allFields, false, null, SkipIfConstructorExists.I_AM_BUILDER, 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();
        isStatic = md.isStatic();
        if (toBuilder) {
            final String TO_BUILDER_NOT_SUPPORTED = "@Builder(toBuilder=true) is only supported if you return your own type.";
            char[] token;
            char[][] pkg = null;
            if (md.returnType.dimensions() > 0) {
                annotationNode.addError(TO_BUILDER_NOT_SUPPORTED);
                return;
            }
            if (md.returnType instanceof SingleTypeReference) {
                token = ((SingleTypeReference) md.returnType).token;
            } else if (md.returnType instanceof QualifiedTypeReference) {
                pkg = ((QualifiedTypeReference) md.returnType).tokens;
                token = pkg[pkg.length];
                char[][] pkg_ = new char[pkg.length - 1][];
                System.arraycopy(pkg, 0, pkg_, 0, pkg_.length);
                pkg = pkg_;
            } else {
                annotationNode.addError(TO_BUILDER_NOT_SUPPORTED);
                return;
            }
            if (pkg != null && !equals(parent.getPackageDeclaration(), pkg)) {
                annotationNode.addError(TO_BUILDER_NOT_SUPPORTED);
                return;
            }
            if (tdParent == null || !equals(tdParent.getName(), token)) {
                annotationNode.addError(TO_BUILDER_NOT_SUPPORTED);
                return;
            }
            TypeParameter[] tpOnType = ((TypeDeclaration) tdParent.get()).typeParameters;
            TypeParameter[] tpOnMethod = md.typeParameters;
            TypeReference[][] tpOnRet_ = null;
            if (md.returnType instanceof ParameterizedSingleTypeReference) {
                tpOnRet_ = new TypeReference[1][];
                tpOnRet_[0] = ((ParameterizedSingleTypeReference) md.returnType).typeArguments;
            } else if (md.returnType instanceof ParameterizedQualifiedTypeReference) {
                tpOnRet_ = ((ParameterizedQualifiedTypeReference) md.returnType).typeArguments;
            }
            if (tpOnRet_ != null)
                for (int i = 0; i < tpOnRet_.length - 1; i++) {
                    if (tpOnRet_[i] != null && tpOnRet_[i].length > 0) {
                        annotationNode.addError("@Builder(toBuilder=true) is not supported if returning a type with generics applied to an intermediate.");
                        return;
                    }
                }
            TypeReference[] tpOnRet = tpOnRet_ == null ? null : tpOnRet_[tpOnRet_.length - 1];
            typeArgsForToBuilder = new ArrayList<char[]>();
            if (tpOnMethod != null)
                for (TypeParameter onMethod : tpOnMethod) {
                    int pos = -1;
                    if (tpOnRet != null)
                        for (int i = 0; i < tpOnRet.length; i++) {
                            if (tpOnRet[i].getClass() != SingleTypeReference.class)
                                continue;
                            if (!Arrays.equals(((SingleTypeReference) tpOnRet[i]).token, onMethod.name))
                                continue;
                            pos = i;
                        }
                    if (pos == -1 || tpOnType == null || tpOnType.length <= pos) {
                        annotationNode.addError("@Builder(toBuilder=true) requires that each type parameter on the static method is part of the typeargs of the return value. Type parameter " + new String(onMethod.name) + " is not part of the return type.");
                        return;
                    }
                    typeArgsForToBuilder.add(tpOnType[pos].name);
                }
        }
        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 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.rawName = arg.name;
            bfd.name = arg.name;
            bfd.type = arg.type;
            bfd.singularData = getSingularData(param, ast);
            addObtainVia(bfd, param);
            builderFields.add(bfd);
        }
    }
    EclipseNode builderType = findInnerClass(tdParent, builderClassName);
    if (builderType == null) {
        builderType = makeBuilderClass(isStatic, tdParent, builderClassName, typeParams, ast);
    } else {
        TypeDeclaration builderTypeDeclaration = (TypeDeclaration) builderType.get();
        if (isStatic && (builderTypeDeclaration.modifiers & ClassFileConstants.AccStatic) == 0) {
            annotationNode.addError("Existing Builder must be a static inner class.");
            return;
        } else if (!isStatic && (builderTypeDeclaration.modifiers & ClassFileConstants.AccStatic) != 0) {
            annotationNode.addError("Existing Builder must be a non-static inner class.");
            return;
        }
        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;
            }
        }
        if (bfd.obtainVia != null) {
            if (bfd.obtainVia.field().isEmpty() == bfd.obtainVia.method().isEmpty()) {
                bfd.obtainViaNode.addError("The syntax is either @ObtainVia(field = \"fieldName\") or @ObtainVia(method = \"methodName\").");
                return;
            }
            if (bfd.obtainVia.method().isEmpty() && bfd.obtainVia.isStatic()) {
                bfd.obtainViaNode.addError("@ObtainVia(isStatic = true) is not valid unless 'method' has been set.");
                return;
            }
        }
    }
    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);
        injectFieldAndMarkGenerated(builderType, cleanDecl);
    }
    if (constructorExists(builderType) == MemberExistsResult.NOT_EXISTS) {
        ConstructorDeclaration cd = HandleConstructor.createConstructor(AccessLevel.PACKAGE, builderType, Collections.<EclipseNode>emptyList(), false, 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(isStatic, 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(isStatic, builderMethodName, builderClassName, tdParent, typeParams, ast);
        if (md != null)
            injectMethod(tdParent, md);
    }
    if (toBuilder)
        switch(methodExists(toBuilderMethodName, tdParent, 0)) {
            case EXISTS_BY_USER:
                annotationNode.addWarning("Not generating toBuilder() as it already exists.");
                break;
            case NOT_EXISTS:
                TypeParameter[] tps = typeParams;
                if (typeArgsForToBuilder != null) {
                    tps = new TypeParameter[typeArgsForToBuilder.size()];
                    for (int i = 0; i < tps.length; i++) {
                        tps[i] = new TypeParameter();
                        tps[i].name = typeArgsForToBuilder.get(i);
                    }
                }
                MethodDeclaration md = generateToBuilderMethod(toBuilderMethodName, builderClassName, tdParent, tps, builderFields, fluent, ast);
                if (md != null)
                    injectMethod(tdParent, md);
        }
}

Example 29 with TypeDeclaration

use of org.eclipse.jdt.internal.compiler.ast.TypeDeclaration in project lombok by rzwitserloot.

the class HandleBuilder method makeSimpleSetterMethodForBuilder.

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) && !isTolerate(fieldNode, existing[i]))
            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);
}

Example 30 with TypeDeclaration

use of org.eclipse.jdt.internal.compiler.ast.TypeDeclaration in project lombok by rzwitserloot.

the class HandleConstructor method createConstructor.

public static ConstructorDeclaration createConstructor(AccessLevel level, EclipseNode type, Collection<EclipseNode> fields, boolean allToDefault, EclipseNode sourceNode, List<Annotation> onConstructor) {
    ASTNode source = sourceNode.get();
    TypeDeclaration typeDeclaration = ((TypeDeclaration) type.get());
    long p = (long) source.sourceStart << 32 | source.sourceEnd;
    boolean isEnum = (((TypeDeclaration) type.get()).modifiers & ClassFileConstants.AccEnum) != 0;
    if (isEnum)
        level = AccessLevel.PRIVATE;
    boolean suppressConstructorProperties;
    if (fields.isEmpty()) {
        suppressConstructorProperties = false;
    } else {
        suppressConstructorProperties = Boolean.TRUE.equals(type.getAst().readConfiguration(ConfigurationKeys.ANY_CONSTRUCTOR_SUPPRESS_CONSTRUCTOR_PROPERTIES));
    }
    ConstructorDeclaration constructor = new ConstructorDeclaration(((CompilationUnitDeclaration) type.top().get()).compilationResult);
    constructor.modifiers = toEclipseModifier(level);
    constructor.selector = typeDeclaration.name;
    constructor.constructorCall = new ExplicitConstructorCall(ExplicitConstructorCall.ImplicitSuper);
    constructor.constructorCall.sourceStart = source.sourceStart;
    constructor.constructorCall.sourceEnd = source.sourceEnd;
    constructor.thrownExceptions = null;
    constructor.typeParameters = null;
    constructor.bits |= 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> params = new ArrayList<Argument>();
    List<Statement> assigns = new ArrayList<Statement>();
    List<Statement> nullChecks = new ArrayList<Statement>();
    for (EclipseNode fieldNode : fields) {
        FieldDeclaration field = (FieldDeclaration) fieldNode.get();
        char[] rawName = field.name;
        char[] fieldName = removePrefixFromField(fieldNode);
        FieldReference thisX = new FieldReference(rawName, p);
        int s = (int) (p >> 32);
        int e = (int) p;
        thisX.receiver = new ThisReference(s, e);
        Expression assignmentExpr = allToDefault ? getDefaultExpr(field.type, s, e) : new SingleNameReference(fieldName, p);
        Assignment assignment = new Assignment(thisX, assignmentExpr, (int) p);
        assignment.sourceStart = (int) (p >> 32);
        assignment.sourceEnd = assignment.statementEnd = (int) (p >> 32);
        assigns.add(assignment);
        if (!allToDefault) {
            long fieldPos = (((long) field.sourceStart) << 32) | field.sourceEnd;
            Argument parameter = new Argument(fieldName, fieldPos, copyType(field.type, source), Modifier.FINAL);
            Annotation[] nonNulls = findAnnotations(field, NON_NULL_PATTERN);
            Annotation[] nullables = findAnnotations(field, NULLABLE_PATTERN);
            if (nonNulls.length != 0) {
                Statement nullCheck = generateNullCheck(field, sourceNode);
                if (nullCheck != null)
                    nullChecks.add(nullCheck);
            }
            parameter.annotations = copyAnnotations(source, nonNulls, nullables);
            params.add(parameter);
        }
    }
    nullChecks.addAll(assigns);
    constructor.statements = nullChecks.isEmpty() ? null : nullChecks.toArray(new Statement[nullChecks.size()]);
    constructor.arguments = params.isEmpty() ? null : params.toArray(new Argument[params.size()]);
    /* Generate annotations that must  be put on the generated method, and attach them. */
    {
        Annotation[] constructorProperties = null;
        if (!allToDefault && !suppressConstructorProperties && level != AccessLevel.PRIVATE && level != AccessLevel.PACKAGE && !isLocalType(type)) {
            constructorProperties = createConstructorProperties(source, fields);
        }
        constructor.annotations = copyAnnotations(source, onConstructor.toArray(new Annotation[0]), constructorProperties);
    }
    constructor.traverse(new SetGeneratedByVisitor(source), typeDeclaration.scope);
    return constructor;
}