Examples with PrivateConstructorOnly org.eclipse.ceylon.compiler.java.codegen.recovery.PrivateConstructorOnly used on opensource projects

Example 1 with PrivateConstructorOnly

use of org.eclipse.ceylon.compiler.java.codegen.recovery.PrivateConstructorOnly in project ceylon by eclipse.

the class ClassTransformer method transform.

public List<JCTree> transform(final Tree.ClassOrInterface def) {
    final ClassOrInterface model = def.getDeclarationModel();
    if (model.isToplevel() && isEe(model)) {
        replaceModifierTransformation(new EeModifierTransformation());
    }
    // in that case
    if (model.isAlias() && Decl.isAncestorLocal(model))
        return List.nil();
    naming.clearSubstitutions(model);
    final String javaClassName;
    String ceylonClassName = def.getIdentifier().getText();
    if (def instanceof Tree.AnyInterface) {
        javaClassName = naming.makeTypeDeclarationName(model, QUALIFIED).replaceFirst(".*\\.", "");
    } else {
        javaClassName = Naming.quoteClassName(ceylonClassName);
    }
    ClassDefinitionBuilder instantiatorImplCb;
    ClassDefinitionBuilder instantiatorDeclCb;
    if (model.isInterfaceMember()) {
        instantiatorImplCb = gen().current().getCompanionBuilder((Interface) model.getContainer());
        instantiatorDeclCb = gen().current();
    } else {
        instantiatorImplCb = gen().current();
        instantiatorDeclCb = null;
    }
    ClassDefinitionBuilder classBuilder = ClassDefinitionBuilder.klass(this, javaClassName, ceylonClassName, Decl.isLocal(model)).forDefinition(model).hasDelegatingConstructors(CodegenUtil.hasDelegatingConstructors(def));
    classBuilder.getInitBuilder().deprecated(model.isDeprecated());
    // Very special case for Anything
    if (model.isAnything()) {
        classBuilder.extending(model.getType(), null);
    }
    if (def instanceof Tree.AnyClass) {
        classBuilder.getInitBuilder().modifiers(modifierTransformation().constructor(model));
        Tree.AnyClass classDef = (Tree.AnyClass) def;
        Class cls = classDef.getDeclarationModel();
        // Member classes need a instantiator method
        boolean generateInstantiator = Strategy.generateInstantiator(cls);
        if (!cls.hasConstructors()) {
            classBuilder.getInitBuilder().userAnnotations(expressionGen().transformAnnotations(OutputElement.CONSTRUCTOR, def));
        }
        if (generateInstantiator && !cls.hasConstructors() && !cls.hasEnumerated()) {
            if (!cls.isStatic()) {
                classBuilder.getInitBuilder().modifiers(PROTECTED);
            }
            generateInstantiators(classBuilder, cls, null, instantiatorDeclCb, instantiatorImplCb, classDef, classDef.getParameterList());
        }
        classBuilder.annotations(expressionGen().transformAnnotations(OutputElement.TYPE, def));
        if (def instanceof Tree.ClassDefinition) {
            transformClass((Tree.ClassDefinition) def, cls, classBuilder, classDef.getParameterList(), generateInstantiator, instantiatorDeclCb, instantiatorImplCb);
        } else {
            // class alias
            classBuilder.getInitBuilder().modifiers(PRIVATE);
            transformClassAlias((Tree.ClassDeclaration) def, classBuilder);
        }
        addMissingUnrefinedMembers(def, cls, classBuilder);
    }
    if (def instanceof Tree.AnyInterface) {
        classBuilder.annotations(expressionGen().transformAnnotations(OutputElement.TYPE, def));
        if (def instanceof Tree.InterfaceDefinition) {
            transformInterface(def, (Interface) model, classBuilder);
        } else {
            // interface alias
            classBuilder.annotations(makeAtAlias(model.getExtendedType(), null));
            classBuilder.isAlias(true);
        }
        classBuilder.isDynamic(model.isDynamic());
    }
    // make sure we set the container in case we move it out
    addAtContainer(classBuilder, model);
    transformTypeParameters(classBuilder, model);
    // Transform the class/interface members
    List<JCStatement> childDefs = visitClassOrInterfaceDefinition(def, classBuilder);
    // everything else is synthetic
    at(null);
    TransformationPlan plan = errors().hasDeclarationError(def);
    if (plan instanceof ThrowerCatchallConstructor) {
        classBuilder.broken();
        MethodDefinitionBuilder initBuilder = classBuilder.noInitConstructor().addConstructor(model.isDeprecated());
        initBuilder.body(statementGen().makeThrowUnresolvedCompilationError(plan.getErrorMessage().getMessage()));
        // Although we have the class pl which we could use we don't know
        // that it won't collide with the default named constructor's pl
        // which would cause a javac error about two constructors with the same sig
        // so we generate a Object... here. There's still a risk of collision though
        // when the default constructor has pl (ObjectArray).
        ParameterDefinitionBuilder pdb = ParameterDefinitionBuilder.implicitParameter(this, "ignored");
        pdb.modifiers(VARARGS);
        pdb.type(new TransformedType(make().TypeArray(make().Type(syms().objectType))));
        initBuilder.parameter(pdb);
    } else if (plan instanceof PrivateConstructorOnly) {
        classBuilder.broken();
        MethodDefinitionBuilder initBuilder = classBuilder.noInitConstructor().addConstructor(model.isDeprecated());
        initBuilder.body(statementGen().makeThrowUnresolvedCompilationError(plan.getErrorMessage().getMessage()));
        initBuilder.modifiers(PRIVATE);
    }
    // If it's a Class without initializer parameters...
    if (Strategy.generateMain(def)) {
        // ... then add a main() method
        classBuilder.method(makeMainForClass(model));
    }
    classBuilder.modelAnnotations(model.getAnnotations()).modifiers(modifierTransformation().classFlags(model)).satisfies(model.getSatisfiedTypes()).caseTypes(model.getCaseTypes(), model.getSelfType()).defs(childDefs);
    // aliases and native headers don't need a $getType method
    if (!model.isAlias()) {
        // only classes get a $getType method
        if (model instanceof Class)
            classBuilder.addGetTypeMethod(model.getType());
        if (supportsReifiedAlias(model))
            classBuilder.reifiedAlias(model.getType());
    }
    // we can add things which depend on knowing all the fields
    if (Strategy.generateJpaCtor(model) && plan instanceof Generate) {
        buildJpaConstructor((Class) model, classBuilder);
    }
    if (model instanceof Class && !(model instanceof ClassAlias) && plan instanceof Generate) {
        Class c = (Class) model;
        if (Strategy.introduceJavaIoSerializable(c, typeFact().getJavaIoSerializable())) {
            classBuilder.introduce(make().QualIdent(syms().serializableType.tsym));
            if (Strategy.useSerializationProxy(c) && noValueConstructorErrors((Tree.ClassDefinition) def)) {
                at(def);
                addWriteReplace(c, classBuilder);
            }
        }
        serialization(c, classBuilder);
    }
    // reset position before initializer constructor is generated.
    at(def);
    classBuilder.at(def);
    List<JCTree> result;
    if (Decl.isAnnotationClass(def.getDeclarationModel())) {
        ListBuffer<JCTree> trees = new ListBuffer<JCTree>();
        trees.addAll(transformAnnotationClass((Tree.AnyClass) def));
        transformAnnotationClassConstructor((Tree.AnyClass) def, classBuilder);
        // you only need that method if you satisfy Annotation which is erased to j.l.a.Annotation
        if (model.inherits(typeFact().getAnnotationDeclaration()))
            classBuilder.addAnnotationTypeMethod(model.getType());
        trees.addAll(classBuilder.build());
        result = trees.toList();
    } else {
        result = classBuilder.build();
    }
    if (model.isToplevel() && isEe(model)) {
        replaceModifierTransformation(new ModifierTransformation());
    }
    return result;
}