Examples of javax.lang.model.util.Types

javax.lang.model.util.Types
Utility methods for operating on types.
Compatibility Note: Methods may be added to this interface in future releases of the platform. @author Joseph D. Darcy @author Scott Seligman @author Peter von der Ahé @see javax.annotation.processing.ProcessingEnvironment#getTypeUtils @since 1.6

        assert element != null;
        if (element.getKind() == ElementKind.METHOD) {
            return true;
        }
        if (element.getKind() == ElementKind.CLASS) {
            Types typeUtils = environment.getTypeUtils();
            DeclaredType type = typeUtils.getDeclaredType((TypeElement) element);
            return typeUtils.isSubtype(type, environment.getDeclaredType(FlowDescription.class));
        }
        return false;
    }

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            ConcreteDataModelMirror that = (ConcreteDataModelMirror) other;
            return environment.getTypeUtils().isSameType(this.type, that.type);
        }
        if (other instanceof PartialDataModelMirror) {
            PartialDataModelMirror that = (PartialDataModelMirror) other;
            Types typeUtils = environment.getTypeUtils();
            return typeUtils.isSubtype(this.type, that.type.getUpperBound())
                && typeUtils.isSubtype(that.type.getLowerBound(), this.type);
        }
        return false;
    }

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    @Override
    public boolean canContain(DataModelMirror other) {
        Precondition.checkMustNotBeNull(other, "other"); //$NON-NLS-1$
        if (other instanceof PartialDataModelMirror) {
            PartialDataModelMirror that = (PartialDataModelMirror) other;
            Types typeUtils = environment.getTypeUtils();
            return typeUtils.isSubtype(this.type, that.type.getUpperBound())
                && typeUtils.isSubtype(that.type.getLowerBound(), this.type);
        }
        return false;
    }

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                executable.getParameters().get(parameterIndex));
        sawError = true;
    }


    boolean typeEqual(TypeMirror a, TypeMirror b) {
        Types types = environment.getTypeUtils();
        return types.isSameType(a, b);
    }

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            return false;
        }
        if (b.getKind() != TypeKind.DECLARED) {
            return false;
        }
        Types types = environment.getTypeUtils();
        if (types.isSameType(a, b)) {
            return true;
        }
        // EclipseJDTのバグでerasureは正しく計算されない模様
        DeclaredType at = (DeclaredType) a;
        DeclaredType bt = (DeclaredType) b;

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        public String findInput(TypeMirror type) {
            Precondition.checkMustNotBeNull(type, "type"); //$NON-NLS-1$
            if (type.getKind() != TypeKind.TYPEVAR) {
                return null;
            }
            Types types = context.environment.getTypeUtils();
            for (OperatorPortDeclaration input : inputPorts) {
                if (types.isSameType(type, input.getType().getRepresentation())) {
                    return input.getName();
                }
            }
            return null;
        }

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            List<OperatorPortDeclaration> inputPorts,
            List<OperatorPortDeclaration> parameters) {
        assert output != null;
        assert inputPorts != null;
        assert parameters != null;
        Types types = environment.getTypeUtils();
        TypeMirror outputType = output.getType().getRepresentation();
        for (OperatorPortDeclaration input : inputPorts) {
            if (types.isSameType(outputType, input.getType().getRepresentation())) {
                return new OperatorPortDeclaration(
                        output.getKind(),
                        output.getDocumentation(),
                        output.getName(),
                        PortTypeDescription.reference(outputType, input.getName()),
                        output.getParameterPosition(),
                        null);
            }
        }
        DeclaredType classType = environment.getDeclaredType(Class.class);
        for (OperatorPortDeclaration param : parameters) {
            // check is form of M<T>
            TypeMirror paramType = param.getType().getRepresentation();
            if (paramType.getKind() != TypeKind.DECLARED) {
                continue;
            }
            DeclaredType declParamType = (DeclaredType) paramType;
            if (declParamType.getTypeArguments().size() != 1) {
                continue;
            }
            // check is <: Class<?>
            if (types.isSameType(environment.getErasure(paramType), classType) == false) {
                continue;
            }
            if (types.isSameType(declParamType.getTypeArguments().get(0), outputType)) {
                return new OperatorPortDeclaration(
                        output.getKind(),
                        output.getDocumentation(),
                        output.getName(),
                        PortTypeDescription.reference(outputType, param.getName()),

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    public synchronized AnnotationMirror getOperatorAnnotation(ExecutableElement element) {
        TypeMirror targetType = environment
                .getElementUtils()
                .getTypeElement(targetOperatorAnnotation.getName())
                .asType();
        Types types = environment.getTypeUtils();
        for (AnnotationMirror annotation : element.getAnnotationMirrors()) {
            if (types.isSameType(annotation.getAnnotationType(), targetType)) {
                return annotation;
            }
        }
        return null;
    }

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            TypeMirror firstParameter) throws ResolveException {
        assert environment != null;
        assert selectorMethod != null;
        assert firstParameter != null;
        TypeMirror erasedSelector = environment.getErasure(firstParameter);
        Types types = environment.getTypeUtils();
        if (types.isSameType(erasedSelector, environment.getDeclaredType(List.class)) == false) {
            throw new ResolveException(MessageFormat.format(
                    "マスタ選択を行うメソッド{0}の1つめの引数は、List<...>の形式でなければなりません",
                    selectorMethod.getSimpleName()));
        }
        DeclaredType list = (DeclaredType) firstParameter;

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            VariableElement variable = (VariableElement) member;
            TypeMirror constantType = variable.asType();
            if (constantType.getKind() != TypeKind.DECLARED) {
                return false;
            }
            Types types = environment.getTypeUtils();
            return types.isSameType(constantType, type);
        }

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