67 lines
1.6 KiB
JavaScript
67 lines
1.6 KiB
JavaScript
![]() |
module.exports = function stringifyValidator(validator, nodePrefix) {
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if (validator === undefined) {
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return "any";
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}
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if (validator.each) {
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return `Array<${stringifyValidator(validator.each, nodePrefix)}>`;
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}
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if (validator.chainOf) {
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return stringifyValidator(validator.chainOf[1], nodePrefix);
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}
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if (validator.oneOf) {
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return validator.oneOf.map(JSON.stringify).join(" | ");
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}
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if (validator.oneOfNodeTypes) {
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return validator.oneOfNodeTypes.map(_ => nodePrefix + _).join(" | ");
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}
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if (validator.oneOfNodeOrValueTypes) {
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return validator.oneOfNodeOrValueTypes
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.map(_ => {
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return isValueType(_) ? _ : nodePrefix + _;
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})
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.join(" | ");
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}
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if (validator.type) {
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return validator.type;
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}
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if (validator.shapeOf) {
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return (
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"{ " +
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Object.keys(validator.shapeOf)
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.map(shapeKey => {
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const propertyDefinition = validator.shapeOf[shapeKey];
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if (propertyDefinition.validate) {
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const isOptional =
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propertyDefinition.optional || propertyDefinition.default != null;
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return (
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shapeKey +
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(isOptional ? "?: " : ": ") +
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stringifyValidator(propertyDefinition.validate)
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);
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}
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return null;
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})
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.filter(Boolean)
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.join(", ") +
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" }"
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);
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}
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return ["any"];
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};
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/**
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* Heuristic to decide whether or not the given type is a value type (eg. "null")
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* or a Node type (eg. "Expression").
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*/
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function isValueType(type) {
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return type.charAt(0).toLowerCase() === type.charAt(0);
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}
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