Fediversity/website/node_modules/yaml/dist/nodes/identity.js
2024-11-13 15:47:11 +01:00

54 lines
1.8 KiB
JavaScript

'use strict';
const ALIAS = Symbol.for('yaml.alias');
const DOC = Symbol.for('yaml.document');
const MAP = Symbol.for('yaml.map');
const PAIR = Symbol.for('yaml.pair');
const SCALAR = Symbol.for('yaml.scalar');
const SEQ = Symbol.for('yaml.seq');
const NODE_TYPE = Symbol.for('yaml.node.type');
const isAlias = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === ALIAS;
const isDocument = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === DOC;
const isMap = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === MAP;
const isPair = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === PAIR;
const isScalar = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === SCALAR;
const isSeq = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === SEQ;
function isCollection(node) {
if (node && typeof node === 'object')
switch (node[NODE_TYPE]) {
case MAP:
case SEQ:
return true;
}
return false;
}
function isNode(node) {
if (node && typeof node === 'object')
switch (node[NODE_TYPE]) {
case ALIAS:
case MAP:
case SCALAR:
case SEQ:
return true;
}
return false;
}
const hasAnchor = (node) => (isScalar(node) || isCollection(node)) && !!node.anchor;
exports.ALIAS = ALIAS;
exports.DOC = DOC;
exports.MAP = MAP;
exports.NODE_TYPE = NODE_TYPE;
exports.PAIR = PAIR;
exports.SCALAR = SCALAR;
exports.SEQ = SEQ;
exports.hasAnchor = hasAnchor;
exports.isAlias = isAlias;
exports.isCollection = isCollection;
exports.isDocument = isDocument;
exports.isMap = isMap;
exports.isNode = isNode;
exports.isPair = isPair;
exports.isScalar = isScalar;
exports.isSeq = isSeq;