Examples with JavacNode lombok.javac.JavacNode used on opensource projects

Example 16 with JavacNode

use of lombok.javac.JavacNode in project lombok by rzwitserloot.

the class HandleSynchronized method handle.

@Override
public void handle(AnnotationValues<Synchronized> annotation, JCAnnotation ast, JavacNode annotationNode) {
    handleFlagUsage(annotationNode, ConfigurationKeys.SYNCHRONIZED_FLAG_USAGE, "@Synchronized");
    if (inNetbeansEditor(annotationNode))
        return;
    deleteAnnotationIfNeccessary(annotationNode, Synchronized.class);
    JavacNode methodNode = annotationNode.up();
    if (methodNode == null || methodNode.getKind() != Kind.METHOD || !(methodNode.get() instanceof JCMethodDecl)) {
        annotationNode.addError("@Synchronized is legal only on methods.");
        return;
    }
    JCMethodDecl method = (JCMethodDecl) methodNode.get();
    if ((method.mods.flags & Flags.ABSTRACT) != 0) {
        annotationNode.addError("@Synchronized is legal only on concrete methods.");
        return;
    }
    boolean isStatic = (method.mods.flags & Flags.STATIC) != 0;
    String lockName = annotation.getInstance().value();
    boolean autoMake = false;
    if (lockName.length() == 0) {
        autoMake = true;
        lockName = isStatic ? STATIC_LOCK_NAME : INSTANCE_LOCK_NAME;
    }
    JavacTreeMaker maker = methodNode.getTreeMaker().at(ast.pos);
    Context context = methodNode.getContext();
    if (fieldExists(lockName, methodNode) == MemberExistsResult.NOT_EXISTS) {
        if (!autoMake) {
            annotationNode.addError("The field " + lockName + " does not exist.");
            return;
        }
        JCExpression objectType = genJavaLangTypeRef(methodNode, ast.pos, "Object");
        //We use 'new Object[0];' because unlike 'new Object();', empty arrays *ARE* serializable!
        JCNewArray newObjectArray = maker.NewArray(genJavaLangTypeRef(methodNode, ast.pos, "Object"), List.<JCExpression>of(maker.Literal(CTC_INT, 0)), null);
        JCVariableDecl fieldDecl = recursiveSetGeneratedBy(maker.VarDef(maker.Modifiers(Flags.PRIVATE | Flags.FINAL | (isStatic ? Flags.STATIC : 0)), methodNode.toName(lockName), objectType, newObjectArray), ast, context);
        injectFieldAndMarkGenerated(methodNode.up(), fieldDecl);
    }
    if (method.body == null)
        return;
    JCExpression lockNode;
    if (isStatic) {
        lockNode = chainDots(methodNode, ast.pos, methodNode.up().getName(), lockName);
    } else {
        lockNode = maker.Select(maker.Ident(methodNode.toName("this")), methodNode.toName(lockName));
    }
    recursiveSetGeneratedBy(lockNode, ast, context);
    method.body = setGeneratedBy(maker.Block(0, List.<JCStatement>of(setGeneratedBy(maker.Synchronized(lockNode, method.body), ast, context))), ast, context);
    methodNode.rebuild();
}

Example 17 with JavacNode

use of lombok.javac.JavacNode in project lombok by rzwitserloot.

the class HandleToString method getTypeName.

public static String getTypeName(JavacNode typeNode) {
    String typeName = ((JCClassDecl) typeNode.get()).name.toString();
    JavacNode upType = typeNode.up();
    while (upType.getKind() == Kind.TYPE) {
        typeName = ((JCClassDecl) upType.get()).name.toString() + "." + typeName;
        upType = upType.up();
    }
    return typeName;
}

Example 18 with JavacNode

use of lombok.javac.JavacNode in project lombok by rzwitserloot.

the class HandleToString method generateToString.

public void generateToString(JavacNode typeNode, JavacNode source, List<String> excludes, List<String> includes, boolean includeFieldNames, Boolean callSuper, boolean whineIfExists, FieldAccess fieldAccess) {
    boolean notAClass = true;
    if (typeNode.get() instanceof JCClassDecl) {
        long flags = ((JCClassDecl) typeNode.get()).mods.flags;
        notAClass = (flags & (Flags.INTERFACE | Flags.ANNOTATION)) != 0;
    }
    if (callSuper == null) {
        try {
            callSuper = ((Boolean) ToString.class.getMethod("callSuper").getDefaultValue()).booleanValue();
        } catch (Exception ignore) {
        }
    }
    if (notAClass) {
        source.addError("@ToString is only supported on a class or enum.");
        return;
    }
    ListBuffer<JavacNode> nodesForToString = new ListBuffer<JavacNode>();
    if (includes != null) {
        for (JavacNode child : typeNode.down()) {
            if (child.getKind() != Kind.FIELD)
                continue;
            JCVariableDecl fieldDecl = (JCVariableDecl) child.get();
            if (includes.contains(fieldDecl.name.toString()))
                nodesForToString.append(child);
        }
    } else {
        for (JavacNode 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 excluded fields.
            if (excludes != null && excludes.contains(fieldDecl.name.toString()))
                continue;
            //Skip fields that start with $.
            if (fieldDecl.name.toString().startsWith("$"))
                continue;
            nodesForToString.append(child);
        }
    }
    switch(methodExists("toString", typeNode, 0)) {
        case NOT_EXISTS:
            JCMethodDecl method = createToString(typeNode, nodesForToString.toList(), includeFieldNames, callSuper, fieldAccess, source.get());
            injectMethod(typeNode, method);
            break;
        case EXISTS_BY_LOMBOK:
            break;
        default:
        case EXISTS_BY_USER:
            if (whineIfExists) {
                source.addWarning("Not generating toString(): A method with that name already exists");
            }
            break;
    }
}

Example 19 with JavacNode

use of lombok.javac.JavacNode in project lombok by rzwitserloot.

the class HandleUtilityClass method handle.

@Override
public void handle(AnnotationValues<UtilityClass> annotation, JCAnnotation ast, JavacNode annotationNode) {
    handleExperimentalFlagUsage(annotationNode, ConfigurationKeys.UTILITY_CLASS_FLAG_USAGE, "@UtilityClass");
    deleteAnnotationIfNeccessary(annotationNode, UtilityClass.class);
    JavacNode typeNode = annotationNode.up();
    if (!checkLegality(typeNode, annotationNode))
        return;
    changeModifiersAndGenerateConstructor(annotationNode.up(), annotationNode);
}

Example 20 with JavacNode

use of lombok.javac.JavacNode in project lombok by rzwitserloot.

the class HandleUtilityClass method checkLegality.

private static boolean checkLegality(JavacNode typeNode, JavacNode errorNode) {
    JCClassDecl typeDecl = null;
    if (typeNode.get() instanceof JCClassDecl)
        typeDecl = (JCClassDecl) typeNode.get();
    long modifiers = typeDecl == null ? 0 : typeDecl.mods.flags;
    boolean notAClass = (modifiers & (Flags.INTERFACE | Flags.ANNOTATION | Flags.ENUM)) != 0;
    if (typeDecl == null || notAClass) {
        errorNode.addError("@UtilityClass is only supported on a class (can't be an interface, enum, or annotation).");
        return false;
    }
    // It might be an inner class. This is okay, but only if it is / can be a static inner class. Thus, all of its parents have to be static inner classes until the top-level.
    JavacNode typeWalk = typeNode;
    while (true) {
        typeWalk = typeWalk.up();
        switch(typeWalk.getKind()) {
            case TYPE:
                JCClassDecl typeDef = (JCClassDecl) typeWalk.get();
                if ((typeDef.mods.flags & (Flags.STATIC | Flags.ANNOTATION | Flags.ENUM | Flags.INTERFACE)) != 0)
                    continue;
                if (typeWalk.up().getKind() == Kind.COMPILATION_UNIT)
                    return true;
                errorNode.addError("@UtilityClass automatically makes the class static, however, this class cannot be made static.");
                return false;
            case COMPILATION_UNIT:
                return true;
            default:
                errorNode.addError("@UtilityClass cannot be placed on a method local or anonymous inner class, or any class nested in such a class.");
                return false;
        }
    }
}