TanTan
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30 lines
1.2 KiB
Plaintext
30 lines
1.2 KiB
Plaintext
import { TypeBoxError } from '../../type/error/index.mjs';
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import { Kind } from '../../type/symbols/index.mjs';
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import { IsString } from '../guard/guard.mjs';
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export class TypeDereferenceError extends TypeBoxError {
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constructor(schema) {
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super(`Unable to dereference schema with $id '${schema.$ref}'`);
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this.schema = schema;
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}
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}
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function Resolve(schema, references) {
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const target = references.find((target) => target.$id === schema.$ref);
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if (target === undefined)
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throw new TypeDereferenceError(schema);
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return Deref(target, references);
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}
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/** `[Internal]` Pushes a schema onto references if the schema has an $id and does not exist on references */
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export function Pushref(schema, references) {
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if (!IsString(schema.$id) || references.some((target) => target.$id === schema.$id))
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return references;
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references.push(schema);
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return references;
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}
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/** `[Internal]` Dereferences a schema from the references array or throws if not found */
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export function Deref(schema, references) {
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// prettier-ignore
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return (schema[Kind] === 'This' || schema[Kind] === 'Ref')
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? Resolve(schema, references)
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: schema;
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}
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