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30 lines
672 B
30 lines
672 B
'use strict'; |
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exports.__esModule = true; |
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/** @type {import('./visit').default} */ |
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exports.default = function visit(node, keys, visitorSpec) { |
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if (!node || !keys) { |
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return; |
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} |
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const type = node.type; |
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const visitor = visitorSpec[type]; |
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if (typeof visitor === 'function') { |
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visitor(node); |
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} |
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const childFields = keys[type]; |
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if (!childFields) { |
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return; |
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} |
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childFields.forEach((fieldName) => { |
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// @ts-expect-error TS sucks with concat |
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[].concat(node[fieldName]).forEach((item) => { |
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visit(item, keys, visitorSpec); |
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}); |
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}); |
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const exit = visitorSpec[`${type}:Exit`]; |
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if (typeof exit === 'function') { |
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exit(node); |
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} |
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};
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