9491597493

Committed 13 Jun 2024 12:23AM UTC coverage: 91.49% (-0.07%) from 91.556%

Build # 9491597493

Build Type

Pull #641

github

Committed by

web-flow

Commit Message

Merge cf864580d into 35d0da50b

Pull Request Pull Request #641: Implement the fn:generate-id function

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/src/expressions/functions/builtInFunctions_node.ts

import {
        AttributeNodePointer,
        ChildNodePointer,
        CommentNodePointer,
        ElementNodePointer,
        NodePointer,
        ParentNodePointer,
        ProcessingInstructionNodePointer,
        TextNodePointer,
} from '../../domClone/Pointer';
import { NODE_TYPES } from '../../domFacade/ConcreteNode';
import DomFacade from '../../domFacade/DomFacade';
import atomize from '../dataTypes/atomize';
import createAtomicValue from '../dataTypes/createAtomicValue';
import createPointerValue from '../dataTypes/createPointerValue';
import { sortNodeValues } from '../dataTypes/documentOrderUtils';
import ISequence from '../dataTypes/ISequence';
import isSubtypeOf from '../dataTypes/isSubtypeOf';
import sequenceFactory from '../dataTypes/sequenceFactory';
import Value, { SequenceMultiplicity, ValueType } from '../dataTypes/Value';
import QName from '../dataTypes/valueTypes/QName';
import DynamicContext from '../DynamicContext';
import ExecutionParameters from '../ExecutionParameters';
import arePointersEqual from '../operators/compares/arePointersEqual';
import { BUILT_IN_NAMESPACE_URIS } from '../staticallyKnownNamespaces';
import StaticContext from '../StaticContext';
import { IterationHint } from '../util/iterators';
import zipSingleton from '../util/zipSingleton';
import { errXPDY0002 } from '../XPathErrors';
import { BuiltinDeclarationType } from './builtInFunctions';
import builtinStringFunctions from './builtInFunctions_string';
import FunctionDefinitionType from './FunctionDefinitionType';
import generateId from './generateId';
const fnString = builtinStringFunctions.functions.string;

function contextItemAsFirstArgument(
        functionName: string,
        fn: FunctionDefinitionType,
        dynamicContext: DynamicContext,
        executionParameters: ExecutionParameters,
        staticContext: StaticContext,
) {
        if (dynamicContext.contextItem === null) {
                throw errXPDY0002(
                        `The function ${functionName} depends on dynamic context, which is absent.`,
                );
        }
        return fn(
                dynamicContext,
                executionParameters,
                staticContext,
                sequenceFactory.singleton(dynamicContext.contextItem),
        );
}

const fnNodeName: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        sequence,
) => {
        return zipSingleton([sequence], ([pointerValue]) => {
                if (pointerValue === null) {
                        return sequenceFactory.empty();
                }
                const domFacade = executionParameters.domFacade;
                const pointer: NodePointer = pointerValue.value;
                switch (domFacade.getNodeType(pointer)) {
                        case NODE_TYPES.ELEMENT_NODE:
                        case NODE_TYPES.ATTRIBUTE_NODE:
                                // element or attribute
                                const attrOrElPointer = pointer as AttributeNodePointer | ElementNodePointer;
                                return sequenceFactory.singleton(
                                        createAtomicValue(
                                                new QName(
                                                        domFacade.getPrefix(attrOrElPointer),
                                                        domFacade.getNamespaceURI(attrOrElPointer),
                                                        domFacade.getLocalName(attrOrElPointer),
                                                ),
                                                ValueType.XSQNAME,
                                        ),
                                );
                        case NODE_TYPES.PROCESSING_INSTRUCTION_NODE:
                                // A processing instruction's target is its nodename (https://www.w3.org/TR/xpath-functions-31/#func-node-name)
                                const processingInstruction = pointer as ProcessingInstructionNodePointer;
                                return sequenceFactory.singleton(
                                        createAtomicValue(
                                                new QName('', '', domFacade.getTarget(processingInstruction)),
                                                ValueType.XSQNAME,
                                        ),
                                );
                        default:
                                // All other nodes have no name
                                return sequenceFactory.empty();
                }
        });
};

const fnName: FunctionDefinitionType = (
        dynamicContext,
        executionParameters,
        staticContext,
        sequence,
) => {
        return sequence.switchCases({
                default: () =>
                        fnString(
                                dynamicContext,
                                executionParameters,
                                staticContext,
                                fnNodeName(dynamicContext, executionParameters, staticContext, sequence),
                        ),
                empty: () => sequenceFactory.singleton(createAtomicValue('', ValueType.XSSTRING)),
        });
};

const fnData: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        sequence,
) => {
        return atomize(sequence, executionParameters);
};

const fnGenerateId: FunctionDefinitionType = (
        dynamicContext,
        executionParameters,
        _staticContext,
        nodeValue,
) => {
        let node: NodePointer;
        if (!nodeValue) {
                if (!dynamicContext || !dynamicContext.contextItem) {
                        throw errXPDY0002(
                                `The function generate-id depends on dynamic context if a node is not passed.`,
                        );
                }
                if (!isSubtypeOf(dynamicContext.contextItem.type, ValueType.NODE)) {
                        throw new Error('XPTY0004: The context item must be a node.');
                }
                node = dynamicContext.contextItem.value;
        } else {
                if (nodeValue.isEmpty()) {
                        return sequenceFactory.singleton(createAtomicValue('', ValueType.XSSTRING));
                }
                node = nodeValue.first().value;
        }
        return sequenceFactory.singleton(createAtomicValue(generateId(node), ValueType.XSSTRING));
};

const fnHasChildren: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        nodeSequence: ISequence,
) => {
        return zipSingleton([nodeSequence], ([pointerValue]: (Value | null)[]) => {
                const pointer: ParentNodePointer = pointerValue ? pointerValue.value : null;

                if (pointer !== null && executionParameters.domFacade.getFirstChildPointer(pointer, null)) {
                        return sequenceFactory.singletonTrueSequence();
                }
                return sequenceFactory.singletonFalseSequence();
        });
};

function areSameNode(
        nodeA: ChildNodePointer,
        nodeB: ChildNodePointer,
        domFacade: DomFacade,
): boolean {
        if (domFacade.getNodeType(nodeA) !== domFacade.getNodeType(nodeB)) {
                return false;
        }
        if (domFacade.getNodeType(nodeB) === NODE_TYPES.ELEMENT_NODE) {
                return (
                        domFacade.getLocalName(nodeB as ElementNodePointer) ===
                                domFacade.getLocalName(nodeA as ElementNodePointer) &&
                        domFacade.getNamespaceURI(nodeB as ElementNodePointer) ===
                                domFacade.getNamespaceURI(nodeA as ElementNodePointer)
                );
        }
        if (domFacade.getNodeType(nodeB) === NODE_TYPES.PROCESSING_INSTRUCTION_NODE) {
                return (
                        domFacade.getTarget(nodeB as ProcessingInstructionNodePointer) ===
                        domFacade.getTarget(nodeA as ProcessingInstructionNodePointer)
                );
        }

        return true;
}

/**
 * Test if a string should match the xml:lang attribute string of a node.
 */
function langMatchString(truth: string, test: string): boolean {
        truth = truth.toLowerCase();
        test = test.toLowerCase();
        if (truth === test) {
                return true;
        } else {
                return truth.length < 5 || !truth.startsWith(test)
                        ? false
                        : /* Strip the least specific part and test again */
                          langMatchString(truth.replace(/-[a-z0-9]+$/, ''), test);
        }
}

/**
 * Starting at a given node, test the xml:lang attribute to see if it
   matches a test. Move up the tree until the test passes or fails.
 */
function langMatchNode(node: NodePointer, domFacade: DomFacade, test: string): ISequence {
        let toTest = node;
        while (toTest) {
                if (domFacade.getNodeType(toTest) !== NODE_TYPES.ELEMENT_NODE) {
                        toTest = domFacade.getParentNodePointer(toTest as AttributeNodePointer);
                } else if (domFacade.getNodeType(toTest) === NODE_TYPES.ELEMENT_NODE) {
                        const attrValue = domFacade.getAttribute(toTest as ElementNodePointer, 'xml:lang');
                        if (attrValue) {
                                return langMatchString(attrValue, test)
                                        ? sequenceFactory.singletonTrueSequence()
                                        : sequenceFactory.singletonFalseSequence();
                        } else {
                                toTest = domFacade.getParentNodePointer(toTest as ElementNodePointer);
                        }
                }
        }
        return sequenceFactory.singletonFalseSequence();
}

const fnLang: FunctionDefinitionType = (
        dynamicContext,
        executionParameters,
        _staticContext,
        langTestValue,
        nodeValue,
) => {
        const domFacade = executionParameters.domFacade;
        let langTest;
        if (langTestValue.isEmpty()) {
                langTest = '';
        } else if (!isSubtypeOf(langTestValue.first().type, ValueType.XSSTRING)) {
                throw new Error('XPTY0004: The first argument of lang must be a string.');
        } else {
                langTest = langTestValue.first().value;
        }
        let node;
        if (!nodeValue) {
                if (!dynamicContext || !dynamicContext.contextItem) {
                        throw errXPDY0002(
                                `The function lang depends on dynamic context if a node is not passed as the second argument.`,
                        );
                }
                if (!isSubtypeOf(dynamicContext.contextItem.type, ValueType.NODE)) {
                        throw new Error('XPTY0004: The context item must be a node.');
                }
                node = dynamicContext.contextItem.value;
        } else {
                node = nodeValue.first().value;
        }
        return langMatchNode(node, domFacade, langTest);
};

const fnPath: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        nodeSequence: ISequence,
) => {
        return zipSingleton([nodeSequence], ([pointerValue]: (Value | null)[]) => {
                if (pointerValue === null) {
                        return sequenceFactory.empty();
                }

                const pointer: NodePointer = pointerValue.value;
                const domFacade: DomFacade = executionParameters.domFacade;

                let result = '';

                function getChildIndex(child: ChildNodePointer): number {
                        let i = 0;
                        let otherChild = child;
                        while (otherChild !== null) {
                                if (areSameNode(child, otherChild, domFacade)) {
                                        i++;
                                }
                                otherChild = domFacade.getPreviousSiblingPointer(otherChild, null);
                        }
                        return i;
                }
                let ancestor;
                for (
                        ancestor = pointer;
                        executionParameters.domFacade.getParentNodePointer(
                                ancestor as ChildNodePointer,
                                null,
                        ) !== null;
                        ancestor = executionParameters.domFacade.getParentNodePointer(
                                ancestor as ChildNodePointer,
                                null,
                        )
                ) {
                        switch (domFacade.getNodeType(ancestor)) {
                                case NODE_TYPES.ELEMENT_NODE: {
                                        const ancestorElement = ancestor as ElementNodePointer;
                                        result = `/Q{${
                                                domFacade.getNamespaceURI(ancestorElement) || ''
                                        }}${domFacade.getLocalName(ancestorElement)}[${getChildIndex(
                                                ancestorElement,
                                        )}]${result}`;
                                        break;
                                }
                                case NODE_TYPES.ATTRIBUTE_NODE: {
                                        const ancestorAttributeNode = ancestor as AttributeNodePointer;
                                        const attributeNameSpace = domFacade.getNamespaceURI(ancestorAttributeNode)
                                                ? `Q{${domFacade.getNamespaceURI(ancestorAttributeNode)}}`
                                                : '';
                                        result = `/@${attributeNameSpace}${domFacade.getLocalName(
                                                ancestorAttributeNode,
                                        )}${result}`;
                                        break;
                                }
                                case NODE_TYPES.TEXT_NODE: {
                                        const ancestorTextNode = ancestor as TextNodePointer;
                                        result = `/text()[${getChildIndex(ancestorTextNode)}]${result}`;
                                        break;
                                }
                                case NODE_TYPES.PROCESSING_INSTRUCTION_NODE: {
                                        const ancestorPI = ancestor as ProcessingInstructionNodePointer;
                                        result = `/processing-instruction(${domFacade.getTarget(
                                                ancestorPI,
                                        )})[${getChildIndex(ancestorPI)}]${result}`;
                                        break;
                                }
                                case NODE_TYPES.COMMENT_NODE: {
                                        const ancestorComment = ancestor as CommentNodePointer;
                                        result = `/comment()[${getChildIndex(ancestorComment)}]${result}`;
                                        break;
                                }
                        }
                }
                if (domFacade.getNodeType(ancestor) === NODE_TYPES.DOCUMENT_NODE) {
                        return sequenceFactory.create(createAtomicValue(result || '/', ValueType.XSSTRING));
                }
                result = 'Q{http://www.w3.org/2005/xpath-functions}root()' + result;
                return sequenceFactory.create(createAtomicValue(result, ValueType.XSSTRING));
        });
};

const fnNamespaceURI: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        sequence,
) => {
        return sequence.map((node) =>
                createAtomicValue(
                        executionParameters.domFacade.getNamespaceURI(node.value) || '',
                        ValueType.XSANYURI,
                ),
        );
};

const fnLocalName: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        sequence,
) => {
        const domFacade = executionParameters.domFacade;
        return sequence.switchCases({
                default: () => {
                        return sequence.map((node) => {
                                if (domFacade.getNodeType(node.value) === 7) {
                                        const pi: ProcessingInstructionNodePointer = node.value;
                                        return createAtomicValue(domFacade.getTarget(pi), ValueType.XSSTRING);
                                }

                                return createAtomicValue(
                                        domFacade.getLocalName(node.value) || '',
                                        ValueType.XSSTRING,
                                );
                        });
                },
                empty: () => sequenceFactory.singleton(createAtomicValue('', ValueType.XSSTRING)),
        });
};

function contains(domFacade: DomFacade, ancestor: NodePointer, descendant: NodePointer): boolean {
        if (domFacade.getNodeType(ancestor) === NODE_TYPES.ATTRIBUTE_NODE) {
                return arePointersEqual(ancestor, descendant);
        }
        while (descendant) {
                if (arePointersEqual(ancestor, descendant)) {
                        return true;
                }
                if (domFacade.getNodeType(descendant) === NODE_TYPES.DOCUMENT_NODE) {
                        return false;
                }
                descendant = domFacade.getParentNodePointer(descendant as ChildNodePointer, null);
        }
        return false;
}

const fnOutermost: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        nodeSequence,
) => {
        return nodeSequence.mapAll((allNodeValues) => {
                if (!allNodeValues.length) {
                        return sequenceFactory.empty();
                }

                const resultNodes = sortNodeValues(executionParameters.domFacade, allNodeValues).reduce(
                        (previousNodes, node, i) => {
                                if (i === 0) {
                                        previousNodes.push(node);
                                        return previousNodes;
                                }
                                // Because the nodes are sorted, the previous node is either a 'previous node', or an ancestor of this node
                                if (
                                        contains(
                                                executionParameters.domFacade,
                                                previousNodes[previousNodes.length - 1].value,
                                                node.value,
                                        )
                                ) {
                                        // The previous node is an ancestor
                                        return previousNodes;
                                }

                                previousNodes.push(node);
                                return previousNodes;
                        },
                        [],
                );

                return sequenceFactory.create(resultNodes);
        }, IterationHint.SKIP_DESCENDANTS);
};

const fnInnermost: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        nodeSequence,
) => {
        return nodeSequence.mapAll((allNodeValues) => {
                if (!allNodeValues.length) {
                        return sequenceFactory.empty();
                }

                const resultNodes = sortNodeValues(
                        executionParameters.domFacade,
                        allNodeValues,
                ).reduceRight((followingNodes, node, i, allNodes) => {
                        if (i === allNodes.length - 1) {
                                followingNodes.push(node);
                                return followingNodes;
                        }
                        // Because the nodes are sorted, the following node is either a 'following node', or a descendant of this node
                        if (contains(executionParameters.domFacade, node.value, followingNodes[0].value)) {
                                // The previous node is an ancestor
                                return followingNodes;
                        }

                        followingNodes.unshift(node);
                        return followingNodes;
                }, []);

                return sequenceFactory.create(resultNodes);
        });
};

const fnRoot: FunctionDefinitionType = (
        _dynamicContext,
        executionParameters,
        _staticContext,
        nodeSequence,
) => {
        return nodeSequence.map((node) => {
                if (!isSubtypeOf(node.type, ValueType.NODE)) {
                        throw new Error('XPTY0004 Argument passed to fn:root() should be of the type node()');
                }

                let ancestor;
                let parent = node.value;
                while (parent) {
                        ancestor = parent;
                        parent = executionParameters.domFacade.getParentNodePointer(ancestor, null);
                }
                return createPointerValue(ancestor, executionParameters.domFacade);
        });
};

const declarations: BuiltinDeclarationType[] = [
        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE }],
                callFunction: fnName,
                localName: 'name',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSSTRING, mult: SequenceMultiplicity.EXACTLY_ONE },
        },

        {
                argumentTypes: [],
                callFunction: contextItemAsFirstArgument.bind(null, 'name', fnName),
                localName: 'name',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSSTRING, mult: SequenceMultiplicity.EXACTLY_ONE },
        },

        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.EXACTLY_ONE }],
                callFunction: fnNamespaceURI,
                localName: 'namespace-uri',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSANYURI, mult: SequenceMultiplicity.EXACTLY_ONE },
        },

        {
                argumentTypes: [],
                callFunction: contextItemAsFirstArgument.bind(null, 'namespace-uri', fnNamespaceURI),
                localName: 'namespace-uri',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSANYURI, mult: SequenceMultiplicity.EXACTLY_ONE },
        },

        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_MORE }],
                callFunction: fnInnermost,
                localName: 'innermost',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_MORE },
        },

        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_MORE }],
                callFunction: fnOutermost,
                localName: 'outermost',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_MORE },
        },

        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE }],
                callFunction: fnHasChildren,
                localName: 'has-children',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: {
                        type: ValueType.XSBOOLEAN,
                        mult: SequenceMultiplicity.EXACTLY_ONE,
                },
        },

        {
                argumentTypes: [],
                callFunction: contextItemAsFirstArgument.bind(null, 'has-children', fnHasChildren),
                localName: 'has-children',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSBOOLEAN, mult: SequenceMultiplicity.EXACTLY_ONE },
        },

        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE }],
                callFunction: fnPath,
                localName: 'path',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSSTRING, mult: SequenceMultiplicity.ZERO_OR_ONE },
        },

        {
                argumentTypes: [],
                callFunction: contextItemAsFirstArgument.bind(null, 'path', fnPath),
                localName: 'path',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSSTRING, mult: SequenceMultiplicity.ZERO_OR_ONE },
        },

        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE }],
                callFunction: fnNodeName,
                localName: 'node-name',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSQNAME, mult: SequenceMultiplicity.ZERO_OR_ONE },
        },

        {
                argumentTypes: [],
                callFunction: contextItemAsFirstArgument.bind(null, 'node-name', fnNodeName),
                localName: 'node-name',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSQNAME, mult: SequenceMultiplicity.ZERO_OR_ONE },
        },

        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE }],
                callFunction: fnLocalName,
                localName: 'local-name',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSSTRING, mult: SequenceMultiplicity.EXACTLY_ONE },
        },

        {
                argumentTypes: [],
                callFunction: contextItemAsFirstArgument.bind(null, 'local-name', fnLocalName),
                localName: 'local-name',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSSTRING, mult: SequenceMultiplicity.EXACTLY_ONE },
        },

        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE }],
                callFunction: fnRoot,
                localName: 'root',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE },
        },

        {
                argumentTypes: [],
                callFunction: contextItemAsFirstArgument.bind(null, 'root', fnRoot),
                localName: 'root',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE },
        },

        {
                argumentTypes: [],
                callFunction: contextItemAsFirstArgument.bind(null, 'data', fnData),
                localName: 'data',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSANYATOMICTYPE, mult: SequenceMultiplicity.ZERO_OR_MORE },
        },
        {
                argumentTypes: [{ type: ValueType.ITEM, mult: SequenceMultiplicity.ZERO_OR_MORE }],
                callFunction: fnData,
                localName: 'data',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSANYATOMICTYPE, mult: SequenceMultiplicity.ZERO_OR_MORE },
        },

        {
                argumentTypes: [{ type: ValueType.XSSTRING, mult: SequenceMultiplicity.ZERO_OR_ONE }],
                callFunction: fnLang,
                localName: 'lang',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSBOOLEAN, mult: SequenceMultiplicity.EXACTLY_ONE },
        },
        {
                argumentTypes: [
                        { type: ValueType.XSSTRING, mult: SequenceMultiplicity.ZERO_OR_ONE },
                        { type: ValueType.NODE, mult: SequenceMultiplicity.EXACTLY_ONE },
                ],
                callFunction: fnLang,
                localName: 'lang',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSBOOLEAN, mult: SequenceMultiplicity.EXACTLY_ONE },
        },
        {
                argumentTypes: [],
                callFunction: fnGenerateId,
                localName: 'generate-id',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSSTRING, mult: SequenceMultiplicity.EXACTLY_ONE },
        },
        {
                argumentTypes: [{ type: ValueType.NODE, mult: SequenceMultiplicity.ZERO_OR_ONE }],
                callFunction: fnGenerateId,
                localName: 'generate-id',
                namespaceURI: BUILT_IN_NAMESPACE_URIS.FUNCTIONS_NAMESPACE_URI,
                returnType: { type: ValueType.XSSTRING, mult: SequenceMultiplicity.EXACTLY_ONE },
        },
];

export default {
        declarations,
        functions: {
                name: fnName,
                nodeName: fnNodeName,
        },
};

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