UNPKG

aws-ddk-core

Version:

The AWS DataOps Development Kit is an open source development framework for customers that build data workflows and modern data architecture on AWS.

54 lines (51 loc) 1.79 kB
'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;