Examples with ParameterizedTypeRef org.eclipse.n4js.ts.typeRefs.ParameterizedTypeRef used on opensource projects

Example 66 with ParameterizedTypeRef

use of org.eclipse.n4js.ts.typeRefs.ParameterizedTypeRef in project n4js by eclipse.

the class InternalTypeSystem method applyRuleThisTypeRefEObject.

protected Result<TypeRef> applyRuleThisTypeRefEObject(final RuleEnvironment G, final RuleApplicationTrace _trace_, final EObject location) throws RuleFailedException {
    // output parameter
    TypeRef T = null;
    final FunctionOrFieldAccessor containingFunctionOrAccessor = N4JSASTUtils.getContainingFunctionOrAccessor(location);
    boolean _matched = false;
    if (containingFunctionOrAccessor instanceof ArrowFunction) {
        _matched = true;
        /* G |~ containingFunctionOrAccessor ~> T */
        Result<TypeRef> result = thisTypeRefInternal(G, _trace_, ((ArrowFunction) containingFunctionOrAccessor));
        checkAssignableTo(result.getFirst(), TypeRef.class);
        T = (TypeRef) result.getFirst();
    }
    if (!_matched) {
        IdentifiableElement _definedFunctionOrAccessor = null;
        if (containingFunctionOrAccessor != null) {
            _definedFunctionOrAccessor = containingFunctionOrAccessor.getDefinedFunctionOrAccessor();
        }
        final IdentifiableElement containingTFunctionOrAccessor = _definedFunctionOrAccessor;
        final TypeRef declaredThisType = TypeSystemHelper.declaredThisType(containingTFunctionOrAccessor);
        if ((declaredThisType != null)) {
            if ((declaredThisType instanceof ParameterizedTypeRef)) {
                /* G |~ declaredThisType ~> T */
                Result<TypeRef> result = thisTypeRefInternal(G, _trace_, ((ParameterizedTypeRef) declaredThisType));
                checkAssignableTo(result.getFirst(), TypeRef.class);
                T = (TypeRef) result.getFirst();
            } else {
                T = declaredThisType;
            }
        } else {
            final ThisTarget thisTarget = N4JSASTUtils.getProbableThisTarget(location);
            boolean _matched_1 = false;
            if (thisTarget instanceof ObjectLiteral) {
                _matched_1 = true;
                /* G |- thisTarget: T */
                Result<TypeRef> result_1 = typeInternal(G, _trace_, ((ObjectLiteral) thisTarget));
                checkAssignableTo(result_1.getFirst(), TypeRef.class);
                T = (TypeRef) result_1.getFirst();
            }
            if (!_matched_1) {
                if (thisTarget instanceof N4ClassifierDefinition) {
                    _matched_1 = true;
                    Type thisTargetDEFTYPE = ((N4ClassifierDefinition) thisTarget).getDefinedType();
                    if ((thisTarget instanceof N4ClassDeclaration)) {
                        final TClass clazz = ((N4ClassDeclaration) thisTarget).getDefinedTypeAsClass();
                        if (((clazz != null) && clazz.isStaticPolyfill())) {
                            final Type actualClazz = clazz.getSuperClassRef().getDeclaredType();
                            if ((actualClazz != null)) {
                                thisTargetDEFTYPE = actualClazz;
                            }
                        }
                    }
                    if ((thisTargetDEFTYPE != null)) {
                        final FunctionDefinition containingFunction = N4JSASTUtils.getContainingFunction(location);
                        if (((containingFunction instanceof N4MethodDeclaration) && ((N4MemberDeclaration) containingFunction).isStatic())) {
                            boolean _isInReturnDeclaration_Of_StaticMethod = RuleEnvironmentExtensions.isInReturnDeclaration_Of_StaticMethod(location, ((N4MethodDeclaration) containingFunction));
                            if (_isInReturnDeclaration_Of_StaticMethod) {
                                /* G |~ thisTargetDEFTYPE.ref ~> T */
                                TypeRef _ref = TypeExtensions.ref(thisTargetDEFTYPE);
                                Result<TypeRef> result_1 = thisTypeRefInternal(G, _trace_, _ref);
                                checkAssignableTo(result_1.getFirst(), TypeRef.class);
                                T = (TypeRef) result_1.getFirst();
                            } else {
                                boolean _isInBody_Of_StaticMethod = RuleEnvironmentExtensions.isInBody_Of_StaticMethod(location, ((N4MethodDeclaration) containingFunction));
                                if (_isInBody_Of_StaticMethod) {
                                    T = TypeUtils.createClassifierBoundThisTypeRef(TypeUtils.createTypeTypeRef(TypeExtensions.ref(thisTargetDEFTYPE), false));
                                } else {
                                    T = TypeUtils.createConstructorTypeRef(thisTargetDEFTYPE);
                                }
                            }
                        } else {
                            final N4FieldDeclaration n4Field = EcoreUtil2.<N4FieldDeclaration>getContainerOfType(location, N4FieldDeclaration.class);
                            if (((n4Field != null) && n4Field.isStatic())) {
                                T = TypeRefsFactory.eINSTANCE.createUnknownTypeRef();
                            } else {
                                final N4GetterDeclaration n4Getter = EcoreUtil2.<N4GetterDeclaration>getContainerOfType(location, N4GetterDeclaration.class);
                                if (((n4Getter != null) && n4Getter.isStatic())) {
                                    T = TypeUtils.createConstructorTypeRef(thisTargetDEFTYPE);
                                } else {
                                    final N4SetterDeclaration n4Setter = EcoreUtil2.<N4SetterDeclaration>getContainerOfType(location, N4SetterDeclaration.class);
                                    if (((n4Setter != null) && n4Setter.isStatic())) {
                                        T = TypeUtils.createConstructorTypeRef(thisTargetDEFTYPE);
                                    } else {
                                        /* G |~ thisTargetDEFTYPE.ref ~> T */
                                        TypeRef _ref_1 = TypeExtensions.ref(thisTargetDEFTYPE);
                                        Result<TypeRef> result_2 = thisTypeRefInternal(G, _trace_, _ref_1);
                                        checkAssignableTo(result_2.getFirst(), TypeRef.class);
                                        T = (TypeRef) result_2.getFirst();
                                    }
                                }
                            }
                        }
                    } else {
                        T = RuleEnvironmentExtensions.anyTypeRefDynamic(G);
                    }
                }
            }
            if (!_matched_1) {
                boolean _hasGlobalObject = this.jsVariantHelper.hasGlobalObject(location);
                if (_hasGlobalObject) {
                    T = RuleEnvironmentExtensions.globalObjectTypeRef(G);
                } else {
                    T = RuleEnvironmentExtensions.undefinedTypeRef(G);
                }
            }
        }
    }
    return new Result<TypeRef>(T);
}

Example 67 with ParameterizedTypeRef

use of org.eclipse.n4js.ts.typeRefs.ParameterizedTypeRef in project n4js by eclipse.

the class InternalTypeSystem method applyRuleTypeTGetter.

protected Result<TypeRef> applyRuleTypeTGetter(final RuleEnvironment G, final RuleApplicationTrace _trace_, final TGetter tgetter) throws RuleFailedException {
    // output parameter
    TypeRef T = null;
    TypeRef _elvis = null;
    TypeRef _declaredTypeRef = tgetter.getDeclaredTypeRef();
    if (_declaredTypeRef != null) {
        _elvis = _declaredTypeRef;
    } else {
        ParameterizedTypeRef _anyTypeRef = RuleEnvironmentExtensions.anyTypeRef(G);
        _elvis = _anyTypeRef;
    }
    T = _elvis;
    return new Result<TypeRef>(T);
}

Example 68 with ParameterizedTypeRef

use of org.eclipse.n4js.ts.typeRefs.ParameterizedTypeRef in project n4js by eclipse.

the class InternalTypeSystem method applyRuleSubtypeExistentialTypeRef_Right.

protected Result<Boolean> applyRuleSubtypeExistentialTypeRef_Right(final RuleEnvironment G, final RuleApplicationTrace _trace_, final TypeRef left, final ExistentialTypeRef existentialTypeRef) throws RuleFailedException {
    boolean _isExistentialTypeToBeReopened = RuleEnvironmentExtensions.isExistentialTypeToBeReopened(G, existentialTypeRef);
    if (_isExistentialTypeToBeReopened) {
        final Wildcard wildThing = existentialTypeRef.getWildcard();
        /* G |~ wildThing /\ var TypeRef upperBound */
        TypeRef upperBound = null;
        Result<TypeRef> result = upperBoundInternal(G, _trace_, wildThing);
        checkAssignableTo(result.getFirst(), TypeRef.class);
        upperBound = (TypeRef) result.getFirst();
        /* G |~ wildThing \/ var TypeRef lowerBound */
        TypeRef lowerBound = null;
        Result<TypeRef> result_1 = lowerBoundInternal(G, _trace_, wildThing);
        checkAssignableTo(result_1.getFirst(), TypeRef.class);
        lowerBound = (TypeRef) result_1.getFirst();
        /* G |- left <: upperBound */
        subtypeInternal(G, _trace_, left, upperBound);
        /* G |- lowerBound <: left */
        subtypeInternal(G, _trace_, lowerBound, left);
    } else {
        /* left===existentialTypeRef or { left instanceof ParameterizedTypeRef && (left as ParameterizedTypeRef).declaredType instanceof NullType } or { G |~ existentialTypeRef \/ var TypeRef lowerExt G |- left <: lowerExt } */
        {
            RuleFailedException previousFailure = null;
            try {
                /* left===existentialTypeRef */
                if (!(left == existentialTypeRef)) {
                    sneakyThrowRuleFailedException("left===existentialTypeRef");
                }
            } catch (Exception e) {
                previousFailure = extractRuleFailedException(e);
                /* { left instanceof ParameterizedTypeRef && (left as ParameterizedTypeRef).declaredType instanceof NullType } or { G |~ existentialTypeRef \/ var TypeRef lowerExt G |- left <: lowerExt } */
                {
                    try {
                        /* left instanceof ParameterizedTypeRef && (left as ParameterizedTypeRef).declaredType instanceof NullType */
                        if (!((left instanceof ParameterizedTypeRef) && (((ParameterizedTypeRef) left).getDeclaredType() instanceof NullType))) {
                            sneakyThrowRuleFailedException("left instanceof ParameterizedTypeRef && (left as ParameterizedTypeRef).declaredType instanceof NullType");
                        }
                    } catch (Exception e_1) {
                        previousFailure = extractRuleFailedException(e_1);
                        /* G |~ existentialTypeRef \/ var TypeRef lowerExt */
                        TypeRef lowerExt = null;
                        Result<TypeRef> result_2 = lowerBoundInternal(G, _trace_, existentialTypeRef);
                        checkAssignableTo(result_2.getFirst(), TypeRef.class);
                        lowerExt = (TypeRef) result_2.getFirst();
                        /* G |- left <: lowerExt */
                        subtypeInternal(G, _trace_, left, lowerExt);
                    }
                }
            }
        }
    }
    return new Result<Boolean>(true);
}

Example 69 with ParameterizedTypeRef

use of org.eclipse.n4js.ts.typeRefs.ParameterizedTypeRef in project n4js by eclipse.

the class InternalTypeSystem method applyRuleSubtypeTypeRefBoundThisTypeRef.

protected Result<Boolean> applyRuleSubtypeTypeRefBoundThisTypeRef(final RuleEnvironment G, final RuleApplicationTrace _trace_, final TypeRef left, final BoundThisTypeRef boundThisTypeRef) throws RuleFailedException {
    /* left===boundThisTypeRef or { val leftType = left.declaredType leftType===G.undefinedType || leftType===G.nullType } or { if (boundThisTypeRef.isUseSiteStructuralTyping || (null !== boundThisTypeRef.actualThisTypeRef && null !== boundThisTypeRef.actualThisTypeRef.declaredType && boundThisTypeRef.actualThisTypeRef.declaredType.final)) { val resolvedTypeRef = TypeUtils.createResolvedThisTypeRef(boundThisTypeRef); G |- left <: resolvedTypeRef } else { fail } } */
    {
        RuleFailedException previousFailure = null;
        try {
            /* left===boundThisTypeRef */
            if (!(left == boundThisTypeRef)) {
                sneakyThrowRuleFailedException("left===boundThisTypeRef");
            }
        } catch (Exception e) {
            previousFailure = extractRuleFailedException(e);
            /* { val leftType = left.declaredType leftType===G.undefinedType || leftType===G.nullType } or { if (boundThisTypeRef.isUseSiteStructuralTyping || (null !== boundThisTypeRef.actualThisTypeRef && null !== boundThisTypeRef.actualThisTypeRef.declaredType && boundThisTypeRef.actualThisTypeRef.declaredType.final)) { val resolvedTypeRef = TypeUtils.createResolvedThisTypeRef(boundThisTypeRef); G |- left <: resolvedTypeRef } else { fail } } */
            {
                try {
                    final Type leftType = left.getDeclaredType();
                    /* leftType===G.undefinedType || leftType===G.nullType */
                    if (!((leftType == RuleEnvironmentExtensions.undefinedType(G)) || (leftType == RuleEnvironmentExtensions.nullType(G)))) {
                        sneakyThrowRuleFailedException("leftType===G.undefinedType || leftType===G.nullType");
                    }
                } catch (Exception e_1) {
                    previousFailure = extractRuleFailedException(e_1);
                    if ((boundThisTypeRef.isUseSiteStructuralTyping() || (((null != boundThisTypeRef.getActualThisTypeRef()) && (null != boundThisTypeRef.getActualThisTypeRef().getDeclaredType())) && boundThisTypeRef.getActualThisTypeRef().getDeclaredType().isFinal()))) {
                        final ParameterizedTypeRef resolvedTypeRef = TypeUtils.createResolvedThisTypeRef(boundThisTypeRef);
                        /* G |- left <: resolvedTypeRef */
                        subtypeInternal(G, _trace_, left, resolvedTypeRef);
                    } else {
                        /* fail */
                        throwForExplicitFail();
                    }
                }
            }
        }
    }
    return new Result<Boolean>(true);
}

Example 70 with ParameterizedTypeRef

use of org.eclipse.n4js.ts.typeRefs.ParameterizedTypeRef in project n4js by eclipse.

the class InternalTypeSystem method applyRuleTypePropertyAccessExpression.

protected Result<TypeRef> applyRuleTypePropertyAccessExpression(final RuleEnvironment G, final RuleApplicationTrace _trace_, final ParameterizedPropertyAccessExpression expr) throws RuleFailedException {
    // output parameter
    TypeRef T = null;
    /* { T = env(G, GUARD_TYPE_PROPERTY_ACCESS_EXPRESSION -> expr, TypeRef) } or { val G2 = G.wrap G2.add(GUARD_TYPE_PROPERTY_ACCESS_EXPRESSION -> expr, G2.anyTypeRef) G2 |- expr.target : var TypeRef receiverTypeRef typeSystemHelper.addSubstitutions(G2,receiverTypeRef) G2.addThisType(receiverTypeRef) if (! (receiverTypeRef instanceof UnknownTypeRef) && (expr.target instanceof SuperLiteral || expr.target instanceof ThisLiteral) ) { var containingClass = EcoreUtil2.getContainerOfType(expr,N4ClassDeclaration)?.definedType; if (containingClass instanceof TClass) { if (containingClass.isStaticPolyfill) { containingClass = containingClass.superClassRef?.declaredType } if (containingClass instanceof TClass) { if (containingClass?.superClassRef!==null) { typeSystemHelper.addSubstitutions(G2, containingClass.superClassRef) } } } } val prop = expr.property; var TypeRef propTypeRef; if(prop instanceof TMethod && (prop as TMethod).isConstructor) { val TypeArgument ctorTypeArg = switch(receiverTypeRef) { TypeTypeRef: G.functionTypeRef ParameterizedTypeRef, BoundThisTypeRef: { val declType = if(receiverTypeRef instanceof BoundThisTypeRef) { receiverTypeRef.actualThisTypeRef?.declaredType } else { receiverTypeRef.declaredType }; val finalCtorSig = if(declType instanceof TClassifier) N4JSLanguageUtils.hasCovariantConstructor(declType); if(finalCtorSig) { declType.ref } else if(declType!==null) { TypeUtils.createWildcardExtends(declType.ref) } else { null } } }; propTypeRef = if(ctorTypeArg!==null) { TypeUtils.createTypeTypeRef(ctorTypeArg, true) } else { TypeRefsFactory.eINSTANCE.createUnknownTypeRef }; } else if(receiverTypeRef.dynamic && prop!==null && prop.eIsProxy) { propTypeRef = G.anyTypeRefDynamic; } else { G2.wrap |- prop : propTypeRef if(expr.parameterized) { typeSystemHelper.addSubstitutions(G2,expr); } } G2 |- propTypeRef ~> T T = versionResolver.resolveVersion(T, receiverTypeRef); if (expr.target instanceof SuperLiteral && T instanceof FunctionTypeExprOrRef ) { val F = T as FunctionTypeExprOrRef; if ((T as FunctionTypeExprOrRef).returnTypeRef instanceof BoundThisTypeRef) { var TypeRef rawT; G |~ expr ~> rawT; val thisTypeRef = TypeUtils.enforceNominalTyping(rawT); if (T instanceof FunctionTypeExpression && T.eContainer===null) { val fte = T as FunctionTypeExpression fte.returnTypeRef = TypeUtils.copyIfContained(thisTypeRef); } else { T = TypeUtils.createFunctionTypeExpression(null, F.typeVars, F.fpars, thisTypeRef); } } } } */
    {
        RuleFailedException previousFailure = null;
        try {
            Pair<String, ParameterizedPropertyAccessExpression> _mappedTo = Pair.<String, ParameterizedPropertyAccessExpression>of(RuleEnvironmentExtensions.GUARD_TYPE_PROPERTY_ACCESS_EXPRESSION, expr);
            T = this.<TypeRef>env(G, _mappedTo, TypeRef.class);
        } catch (Exception e) {
            previousFailure = extractRuleFailedException(e);
            final RuleEnvironment G2 = RuleEnvironmentExtensions.wrap(G);
            Pair<String, ParameterizedPropertyAccessExpression> _mappedTo_1 = Pair.<String, ParameterizedPropertyAccessExpression>of(RuleEnvironmentExtensions.GUARD_TYPE_PROPERTY_ACCESS_EXPRESSION, expr);
            boolean _add = G2.add(_mappedTo_1, RuleEnvironmentExtensions.anyTypeRef(G2));
            /* G2.add(GUARD_TYPE_PROPERTY_ACCESS_EXPRESSION -> expr, G2.anyTypeRef) */
            if (!_add) {
                sneakyThrowRuleFailedException("G2.add(GUARD_TYPE_PROPERTY_ACCESS_EXPRESSION -> expr, G2.anyTypeRef)");
            }
            /* G2 |- expr.target : var TypeRef receiverTypeRef */
            Expression _target = expr.getTarget();
            TypeRef receiverTypeRef = null;
            Result<TypeRef> result = typeInternal(G2, _trace_, _target);
            checkAssignableTo(result.getFirst(), TypeRef.class);
            receiverTypeRef = (TypeRef) result.getFirst();
            this.typeSystemHelper.addSubstitutions(G2, receiverTypeRef);
            RuleEnvironmentExtensions.addThisType(G2, receiverTypeRef);
            if (((!(receiverTypeRef instanceof UnknownTypeRef)) && ((expr.getTarget() instanceof SuperLiteral) || (expr.getTarget() instanceof ThisLiteral)))) {
                N4ClassDeclaration _containerOfType = EcoreUtil2.<N4ClassDeclaration>getContainerOfType(expr, N4ClassDeclaration.class);
                Type _definedType = null;
                if (_containerOfType != null) {
                    _definedType = _containerOfType.getDefinedType();
                }
                Type containingClass = _definedType;
                if ((containingClass instanceof TClass)) {
                    boolean _isStaticPolyfill = ((TClass) containingClass).isStaticPolyfill();
                    if (_isStaticPolyfill) {
                        ParameterizedTypeRef _superClassRef = ((TClass) containingClass).getSuperClassRef();
                        Type _declaredType = null;
                        if (_superClassRef != null) {
                            _declaredType = _superClassRef.getDeclaredType();
                        }
                        containingClass = _declaredType;
                    }
                    if ((containingClass instanceof TClass)) {
                        ParameterizedTypeRef _superClassRef_1 = null;
                        if (((TClass) containingClass) != null) {
                            _superClassRef_1 = ((TClass) containingClass).getSuperClassRef();
                        }
                        boolean _tripleNotEquals = (_superClassRef_1 != null);
                        if (_tripleNotEquals) {
                            this.typeSystemHelper.addSubstitutions(G2, ((TClass) containingClass).getSuperClassRef());
                        }
                    }
                }
            }
            final IdentifiableElement prop = expr.getProperty();
            TypeRef propTypeRef = null;
            if (((prop instanceof TMethod) && ((TMethod) prop).isConstructor())) {
                TypeArgument _switchResult = null;
                boolean _matched = false;
                if (receiverTypeRef instanceof TypeTypeRef) {
                    _matched = true;
                    _switchResult = RuleEnvironmentExtensions.functionTypeRef(G);
                }
                if (!_matched) {
                    if (receiverTypeRef instanceof ParameterizedTypeRef) {
                        _matched = true;
                    }
                    if (!_matched) {
                        if (receiverTypeRef instanceof BoundThisTypeRef) {
                            _matched = true;
                        }
                    }
                    if (_matched) {
                        TypeArgument _xblockexpression = null;
                        {
                            Type _xifexpression = null;
                            if ((receiverTypeRef instanceof BoundThisTypeRef)) {
                                ParameterizedTypeRef _actualThisTypeRef = ((BoundThisTypeRef) receiverTypeRef).getActualThisTypeRef();
                                Type _declaredType_1 = null;
                                if (_actualThisTypeRef != null) {
                                    _declaredType_1 = _actualThisTypeRef.getDeclaredType();
                                }
                                _xifexpression = _declaredType_1;
                            } else {
                                _xifexpression = ((BaseTypeRef) receiverTypeRef).getDeclaredType();
                            }
                            final Type declType = _xifexpression;
                            boolean _xifexpression_1 = false;
                            if ((declType instanceof TClassifier)) {
                                _xifexpression_1 = N4JSLanguageUtils.hasCovariantConstructor(((TClassifier) declType));
                            }
                            final boolean finalCtorSig = _xifexpression_1;
                            TypeArgument _xifexpression_2 = null;
                            if (finalCtorSig) {
                                _xifexpression_2 = TypeExtensions.ref(declType);
                            } else {
                                Wildcard _xifexpression_3 = null;
                                if ((declType != null)) {
                                    _xifexpression_3 = TypeUtils.createWildcardExtends(TypeExtensions.ref(declType));
                                } else {
                                    _xifexpression_3 = null;
                                }
                                _xifexpression_2 = _xifexpression_3;
                            }
                            _xblockexpression = (_xifexpression_2);
                        }
                        _switchResult = _xblockexpression;
                    }
                }
                final TypeArgument ctorTypeArg = _switchResult;
                TypeRef _xifexpression = null;
                if ((ctorTypeArg != null)) {
                    _xifexpression = TypeUtils.createTypeTypeRef(ctorTypeArg, true);
                } else {
                    _xifexpression = TypeRefsFactory.eINSTANCE.createUnknownTypeRef();
                }
                propTypeRef = _xifexpression;
            } else {
                if (((receiverTypeRef.isDynamic() && (prop != null)) && prop.eIsProxy())) {
                    propTypeRef = RuleEnvironmentExtensions.anyTypeRefDynamic(G);
                } else {
                    /* G2.wrap |- prop : propTypeRef */
                    RuleEnvironment _wrap = RuleEnvironmentExtensions.wrap(G2);
                    Result<TypeRef> result_1 = typeInternal(_wrap, _trace_, prop);
                    checkAssignableTo(result_1.getFirst(), TypeRef.class);
                    propTypeRef = (TypeRef) result_1.getFirst();
                    boolean _isParameterized = expr.isParameterized();
                    if (_isParameterized) {
                        this.typeSystemHelper.addSubstitutions(G2, expr);
                    }
                }
            }
            /* G2 |- propTypeRef ~> T */
            Result<TypeArgument> result_2 = substTypeVariablesInternal(G2, _trace_, propTypeRef);
            checkAssignableTo(result_2.getFirst(), TypeRef.class);
            T = (TypeRef) result_2.getFirst();
            T = this.versionResolver.<TypeRef, TypeRef>resolveVersion(T, receiverTypeRef);
            if (((expr.getTarget() instanceof SuperLiteral) && (T instanceof FunctionTypeExprOrRef))) {
                final FunctionTypeExprOrRef F = ((FunctionTypeExprOrRef) T);
                TypeRef _returnTypeRef = ((FunctionTypeExprOrRef) T).getReturnTypeRef();
                if ((_returnTypeRef instanceof BoundThisTypeRef)) {
                    TypeRef rawT = null;
                    /* G |~ expr ~> rawT */
                    Result<TypeRef> result_3 = thisTypeRefInternal(G, _trace_, expr);
                    checkAssignableTo(result_3.getFirst(), TypeRef.class);
                    rawT = (TypeRef) result_3.getFirst();
                    final TypeRef thisTypeRef = TypeUtils.enforceNominalTyping(rawT);
                    if (((T instanceof FunctionTypeExpression) && (T.eContainer() == null))) {
                        final FunctionTypeExpression fte = ((FunctionTypeExpression) T);
                        fte.setReturnTypeRef(TypeUtils.<TypeRef>copyIfContained(thisTypeRef));
                    } else {
                        T = TypeUtils.createFunctionTypeExpression(null, F.getTypeVars(), F.getFpars(), thisTypeRef);
                    }
                }
            }
        }
    }
    return new Result<TypeRef>(T);
}