Marc Mintel
5397309103
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52 lines
1.4 KiB
Plaintext
52 lines
1.4 KiB
Plaintext
import type {LinkedJSONSchema} from './types/JSONSchema'
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import {Intersection, Parent, Types} from './types/JSONSchema'
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import {typesOfSchema} from './typesOfSchema'
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export function applySchemaTyping(schema: LinkedJSONSchema) {
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const types = typesOfSchema(schema)
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Object.defineProperty(schema, Types, {
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enumerable: false,
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value: types,
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writable: false,
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})
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if (types.size === 1) {
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return
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}
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// Some schemas can be understood as multiple possible types (see related
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// comment in `typesOfSchema.ts`). In such cases, we generate an `ALL_OF`
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// intersection that will ultimately be used to generate a union type.
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//
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// The original schema's name, title, and description are hoisted to the
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// new intersection schema to prevent duplication.
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//
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// If the original schema also contained its own `ALL_OF` property, it is
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// also hoiested to the new intersection schema.
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const intersection = {
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[Parent]: schema,
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[Types]: new Set(['ALL_OF']),
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$id: schema.$id,
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description: schema.description,
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name: schema.name,
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title: schema.title,
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allOf: schema.allOf ?? [],
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required: [],
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additionalProperties: false,
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}
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types.delete('ALL_OF')
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delete schema.allOf
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delete schema.$id
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delete schema.description
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delete schema.name
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delete schema.title
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Object.defineProperty(schema, Intersection, {
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enumerable: false,
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value: intersection,
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writable: false,
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})
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}
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