Examples with Value org.eclipse.ceylon.model.typechecker.model.Value used on opensource projects

Example 26 with Value

use of org.eclipse.ceylon.model.typechecker.model.Value in project ceylon by eclipse.

the class ClassTransformer method addRefinedThrowerAttribute.

/**
 * Adds a getter (and possibly a setter) to {@code classBuilder}
 * which throws
 * @param classBuilder The class builder to add the method to
 * @param error The message
 * @param classModel The class which doesn't refine {@code formalAttribute}
 * @param formalAttribute The formal attribute that hasn't been refined in {@code classModel}
 */
private void addRefinedThrowerAttribute(ClassDefinitionBuilder classBuilder, String error, Node node, ClassOrInterface classModel, Value formalAttribute) {
    Value refined = refineValue(formalAttribute, formalAttribute.appliedTypedReference(null, null), classModel, classModel.getUnit());
    AttributeDefinitionBuilder getterBuilder = AttributeDefinitionBuilder.getter(this, refined.getName(), refined);
    getterBuilder.skipField();
    getterBuilder.modifiers(modifierTransformation().getterSetter(refined, false));
    getterBuilder.getterBlock(make().Block(0, List.<JCStatement>of(makeThrowUnresolvedCompilationError(error))));
    classBuilder.attribute(getterBuilder);
    if (formalAttribute.isVariable()) {
        AttributeDefinitionBuilder setterBuilder = AttributeDefinitionBuilder.setter(this, node, refined.getName(), refined);
        setterBuilder.skipField();
        setterBuilder.modifiers(modifierTransformation().getterSetter(refined, false));
        setterBuilder.setterBlock(make().Block(0, List.<JCStatement>of(makeThrowUnresolvedCompilationError(error))));
        classBuilder.attribute(setterBuilder);
    }
}

Example 27 with Value

use of org.eclipse.ceylon.model.typechecker.model.Value in project ceylon by eclipse.

the class ClassTransformer method addMissingUnrefinedMembers.

/**
 * Recover from members not being refined in the class hierarchy
 * by generating a stub method that throws.
 */
private void addMissingUnrefinedMembers(Node def, Class classModel, ClassDefinitionBuilder classBuilder) {
    for (Reference unrefined : classModel.getUnimplementedFormals()) {
        // classModel.getMember(memberName, null, false);
        Declaration formalMember = unrefined.getDeclaration();
        String errorMessage = "formal member '" + formalMember.getName() + "' of '" + ((TypeDeclaration) formalMember.getContainer()).getName() + "' not implemented in class hierarchy";
        java.util.List<Type> params = new java.util.ArrayList<Type>();
        for (TypeParameter tp : formalMember.getTypeParameters()) {
            params.add(tp.getType());
        }
        if (formalMember instanceof Value) {
            addRefinedThrowerAttribute(classBuilder, errorMessage, def, classModel, (Value) formalMember);
        } else if (formalMember instanceof Function) {
            addRefinedThrowerMethod(classBuilder, errorMessage, classModel, (Function) formalMember);
        } else if (formalMember instanceof Class && formalMember.isClassMember()) {
            addRefinedThrowerInstantiatorMethod(classBuilder, errorMessage, classModel, (Class) formalMember, unrefined);
        }
    // formal member class of interface handled in
    // makeDelegateToCompanion()
    }
}

Example 28 with Value

use of org.eclipse.ceylon.model.typechecker.model.Value in project ceylon by eclipse.

the class ClassTransformer method serializationGet.

private void serializationGet(Class model, ClassDefinitionBuilder classBuilder) {
    MethodDefinitionBuilder mdb = MethodDefinitionBuilder.systemMethod(this, Unfix.$get$.toString());
    mdb.isOverride(true);
    mdb.ignoreModelAnnotations();
    mdb.modifiers(PUBLIC);
    ParameterDefinitionBuilder pdb = ParameterDefinitionBuilder.systemParameter(this, Unfix.reference.toString());
    pdb.modifiers(FINAL);
    pdb.type(new TransformedType(make().Type(syms().ceylonReachableReferenceType), null, makeAtNonNull()));
    mdb.parameter(pdb);
    mdb.resultType(new TransformedType(make().Type(syms().objectType), null, makeAtNonNull()));
    /*
         * public void $get$(Object reference, Object instance) {
         *     switch((String)reference) {
         *     case ("attr1")
         *           return ...;
         *     // ... other fields of this class
         *     case ("lateAttr1")
         *           if (!$init$lateAttr1) {
         *               return ceylon.language.serialization.uninitializedLateValue.get_();
         *           }
         *           return ...;
         *     case (null):
         *           return Outer.this;
         *     default:
         *           return super.get(reference);
         */
    ListBuffer<JCCase> cases = new ListBuffer<JCCase>();
    boolean[] needsLookup = new boolean[] { false };
    for (Declaration member : model.getMembers()) {
        if (hasField(member)) {
            if (member instanceof Function)
                // TODO: This class is not serializable
                continue;
            ListBuffer<JCStatement> caseStmts = new ListBuffer<JCStatement>();
            if (member instanceof Value && ((Value) member).isLate()) {
                // TODO this should be encapsulated so the ADB and this
                // code can just call something common
                JCExpression test = AttributeDefinitionBuilder.field(this, null, member.getName(), (Value) member, false).buildUninitTest();
                if (test != null) {
                    caseStmts.add(make().If(test, make().Return(makeLanguageSerializationValue("uninitializedLateValue")), null));
                }
            }
            caseStmts.add(make().Return(makeSerializationGetter((Value) member)));
            cases.add(make().Case(make().Literal(member.getQualifiedNameString()), caseStmts.toList()));
        }
    }
    SyntheticName reference = naming.synthetic(Unfix.reference);
    ListBuffer<JCStatement> defaultCase = new ListBuffer<JCStatement>();
    if (extendsSerializable(model)) {
        // super.get(reference);
        defaultCase.add(make().Return(make().Apply(null, naming.makeQualIdent(naming.makeSuper(), Unfix.$get$.toString()), List.<JCExpression>of(reference.makeIdent()))));
    } else {
        // throw (or pass to something else to throw, based on policy)
        defaultCase.add(make().Throw(make().NewClass(null, null, naming.makeQuotedFQIdent("java.lang.RuntimeException"), List.<JCExpression>of(make().Literal("unknown attribute")), null)));
    }
    cases.add(make().Case(null, defaultCase.toList()));
    ListBuffer<JCStatement> stmts = new ListBuffer<JCStatement>();
    if (needsLookup[0]) {
        // if we needed to use a lookup object to reset final fields,
        // prepend that variable
        stmts.add(makeVar(FINAL, "lookup", naming.makeQualIdent(make().Type(syms().methodHandlesType), "Lookup"), make().Apply(null, naming.makeQuotedFQIdent("java.lang.invoke.MethodHandles.lookup"), List.<JCExpression>nil())));
    }
    JCSwitch swtch = make().Switch(make().Apply(null, naming.makeSelect(make().Apply(null, naming.makeSelect(make().TypeCast(make().Type(syms().ceylonMemberType), reference.makeIdent()), "getAttribute"), List.<JCExpression>nil()), "getQualifiedName"), List.<JCExpression>nil()), cases.toList());
    if (model.isMember() && !model.getExtendedType().getDeclaration().isMember()) {
        stmts.add(make().If(make().TypeTest(reference.makeIdent(), make().Type(syms().ceylonOuterType)), make().Return(expressionGen().makeOuterExpr(((TypeDeclaration) model.getContainer()).getType())), swtch));
    } else {
        stmts.add(swtch);
    }
    mdb.body(stmts.toList());
    classBuilder.method(mdb);
}

Example 29 with Value

use of org.eclipse.ceylon.model.typechecker.model.Value in project ceylon by eclipse.

the class ClassTransformer method needsCompanionDelegate.

private boolean needsCompanionDelegate(final Class model, Reference ref) {
    final boolean mostRefined;
    Declaration member = ref.getDeclaration();
    java.util.List<Type> sig = getSignatureIfRequired(ref);
    Declaration m = model.getMember(member.getName(), sig, false, true);
    if (member instanceof Setter && Decl.isGetter(m)) {
        mostRefined = member.equals(((Value) m).getSetter());
    } else {
        mostRefined = member.equals(m);
    }
    return mostRefined && (member.isDefault() || !member.isFormal());
}

Example 30 with Value

use of org.eclipse.ceylon.model.typechecker.model.Value in project ceylon by eclipse.

the class ClassTransformer method makeDelegateToCompanion.

/**
 * Generates a method which delegates to the companion instance $Foo$impl
 */
private MethodDefinitionBuilder makeDelegateToCompanion(Interface iface, Reference typedMember, Type currentType, final long mods, final java.util.List<TypeParameter> typeParameters, final java.util.List<java.util.List<Type>> producedTypeParameterBounds, final Type methodType, final String methodName, final java.util.List<Parameter> parameters, boolean typeErased, final String targetMethodName, Parameter defaultedParam, boolean includeBody) {
    final MethodDefinitionBuilder concreteWrapper = MethodDefinitionBuilder.systemMethod(gen(), methodName);
    concreteWrapper.modifiers(mods);
    concreteWrapper.ignoreModelAnnotations();
    if ((mods & PRIVATE) == 0) {
        concreteWrapper.isOverride(true);
    }
    if (typeParameters != null) {
        concreteWrapper.reifiedTypeParametersFromModel(typeParameters);
    }
    Iterator<java.util.List<Type>> iterator = producedTypeParameterBounds.iterator();
    if (typeParameters != null) {
        for (TypeParameter tp : typeParameters) {
            concreteWrapper.typeParameter(tp, iterator.next());
        }
    }
    boolean explicitReturn = false;
    Declaration member = (defaultedParam != null ? typedMember.getTypedParameter(defaultedParam) : typedMember).getDeclaration();
    Type returnType = null;
    if (!isAnything(methodType) || ((member instanceof Function || member instanceof Value) && !Decl.isUnboxedVoid(member)) || (member instanceof Function && Strategy.useBoxedVoid((Function) member))) {
        explicitReturn = true;
        if (CodegenUtil.isHashAttribute(member)) {
            // delegates for hash attributes are int
            concreteWrapper.resultType(new TransformedType(make().Type(syms().intType)));
            returnType = typedMember.getType();
        } else if (typedMember instanceof TypedReference && defaultedParam == null) {
            TypedReference typedRef = (TypedReference) typedMember;
            // This is very much like for method refinement: if the supertype is erased -> go raw.
            // Except for some reason we only need to do it with multiple inheritance with different type
            // arguments, so let's not go overboard
            int flags = 0;
            if (CodegenUtil.hasTypeErased((TypedDeclaration) member.getRefinedDeclaration()) || CodegenUtil.hasTypeErased((TypedDeclaration) member) && isInheritedTwiceWithDifferentTypeArguments(currentType, iface)) {
                flags |= AbstractTransformer.JT_RAW;
            }
            concreteWrapper.resultTypeNonWidening(currentType, typedRef, typedMember.getType(), flags);
            // FIXME: this is redundant with what we computed in the previous line in concreteWrapper.resultTypeNonWidening
            TypedReference nonWideningTypedRef = gen().nonWideningTypeDecl(typedRef, currentType);
            returnType = gen().nonWideningType(typedRef, nonWideningTypedRef);
        } else if (defaultedParam != null) {
            TypedReference typedParameter = typedMember.getTypedParameter(defaultedParam);
            NonWideningParam nonWideningParam = concreteWrapper.getNonWideningParam(typedParameter, currentType.getDeclaration() instanceof Class ? WideningRules.FOR_MIXIN : WideningRules.NONE);
            returnType = nonWideningParam.nonWideningType;
            if (member instanceof Function)
                returnType = typeFact().getCallableType(returnType);
            concreteWrapper.resultType(new TransformedType(makeJavaType(returnType, nonWideningParam.flags)));
        } else {
            concreteWrapper.resultType(new TransformedType(makeJavaType((Type) typedMember)));
            returnType = (Type) typedMember;
        }
    }
    ListBuffer<JCExpression> arguments = new ListBuffer<JCExpression>();
    if (typeParameters != null) {
        for (TypeParameter tp : typeParameters) {
            arguments.add(naming.makeUnquotedIdent(naming.getTypeArgumentDescriptorName(tp)));
        }
    }
    Declaration declaration = typedMember.getDeclaration();
    if (declaration instanceof Constructor && !Decl.isDefaultConstructor((Constructor) declaration) && defaultedParam == null) {
        concreteWrapper.parameter(makeConstructorNameParameter((Constructor) declaration));
        arguments.add(naming.makeUnquotedIdent(Unfix.$name$));
    }
    int ii = 0;
    for (Parameter param : parameters) {
        Parameter parameter;
        if (declaration instanceof Functional) {
            parameter = ((Functional) declaration).getFirstParameterList().getParameters().get(ii++);
        } else if (declaration instanceof Setter) {
            parameter = ((Setter) declaration).getParameter();
        } else {
            throw BugException.unhandledDeclarationCase(declaration);
        }
        final TypedReference typedParameter = typedMember.getTypedParameter(parameter);
        concreteWrapper.parameter(null, param, typedParameter, null, FINAL, WideningRules.FOR_MIXIN);
        arguments.add(naming.makeName(param.getModel(), Naming.NA_MEMBER | Naming.NA_ALIASED));
    }
    if (includeBody) {
        JCExpression qualifierThis = makeUnquotedIdent(getCompanionFieldName(iface));
        // our impl accessor to get the expected bounds of the qualifying type
        if (explicitReturn) {
            Type javaType = getBestSatisfiedType(currentType, iface);
            Type ceylonType = typedMember.getQualifyingType();
            // don't even bother if the impl accessor is turned to raw because casting it to raw doesn't help
            if (!isTurnedToRaw(ceylonType) && // if it's exactly the same we don't need any cast
            !javaType.isExactly(ceylonType))
                // this will add the proper cast to the impl accessor
                qualifierThis = expressionGen().applyErasureAndBoxing(qualifierThis, currentType, false, true, BoxingStrategy.BOXED, ceylonType, ExpressionTransformer.EXPR_WANTS_COMPANION);
        }
        JCExpression expr = make().Apply(// TODO Type args
        null, makeSelect(qualifierThis, (targetMethodName != null) ? targetMethodName : methodName), arguments.toList());
        if (isUnimplementedMemberClass(currentType, typedMember)) {
            concreteWrapper.body(makeThrowUnresolvedCompilationError(// TODO encapsulate the error message
            "formal member '" + declaration.getName() + "' of '" + iface.getName() + "' not implemented in class hierarchy"));
            current().broken();
        } else if (!explicitReturn) {
            concreteWrapper.body(gen().make().Exec(expr));
        } else {
            // deal with erasure and stuff
            BoxingStrategy boxingStrategy;
            boolean exprBoxed;
            if (member instanceof TypedDeclaration) {
                TypedDeclaration typedDecl = (TypedDeclaration) member;
                exprBoxed = !CodegenUtil.isUnBoxed(typedDecl);
                boxingStrategy = CodegenUtil.getBoxingStrategy(typedDecl);
            } else {
                // must be a class or interface
                exprBoxed = true;
                boxingStrategy = BoxingStrategy.UNBOXED;
            }
            // to force an additional cast
            if (isTurnedToRaw(typedMember.getQualifyingType()) || // in invariant locations
            needsRawCastForMixinSuperCall(iface, methodType) || needsCastForErasedInstantiator(iface, methodName, member))
                typeErased = true;
            expr = gen().expressionGen().applyErasureAndBoxing(expr, methodType, typeErased, exprBoxed, boxingStrategy, returnType, 0);
            concreteWrapper.body(gen().make().Return(expr));
        }
    }
    return concreteWrapper;
}