Marc Mintel
5397309103
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70 lines
2.4 KiB
Plaintext
70 lines
2.4 KiB
Plaintext
import type {KeywordDefinition, KeywordErrorDefinition, KeywordCxt, ErrorObject} from "ajv"
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import {_, str, nil, Name} from "ajv/dist/compile/codegen"
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import type {DefinitionOptions} from "./_types"
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import {metaSchemaRef} from "./_util"
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export type SelectError = ErrorObject<"select", {failingCase?: string; failingDefault?: true}>
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const error: KeywordErrorDefinition = {
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message: ({params: {schemaProp}}) =>
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schemaProp
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? str`should match case "${schemaProp}" schema`
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: str`should match default case schema`,
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params: ({params: {schemaProp}}) =>
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schemaProp ? _`{failingCase: ${schemaProp}}` : _`{failingDefault: true}`,
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}
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export default function getDef(opts?: DefinitionOptions): KeywordDefinition[] {
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const metaSchema = metaSchemaRef(opts)
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return [
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{
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keyword: "select",
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schemaType: ["string", "number", "boolean", "null"],
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$data: true,
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error,
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dependencies: ["selectCases"],
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code(cxt: KeywordCxt) {
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const {gen, schemaCode, parentSchema} = cxt
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cxt.block$data(nil, () => {
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const valid = gen.let("valid", true)
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const schValid = gen.name("_valid")
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const value = gen.const("value", _`${schemaCode} === null ? "null" : ${schemaCode}`)
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gen.if(false) // optimizer should remove it from generated code
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for (const schemaProp in parentSchema.selectCases) {
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cxt.setParams({schemaProp})
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gen.elseIf(_`"" + ${value} == ${schemaProp}`) // intentional ==, to match numbers and booleans
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const schCxt = cxt.subschema({keyword: "selectCases", schemaProp}, schValid)
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cxt.mergeEvaluated(schCxt, Name)
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gen.assign(valid, schValid)
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}
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gen.else()
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if (parentSchema.selectDefault !== undefined) {
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cxt.setParams({schemaProp: undefined})
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const schCxt = cxt.subschema({keyword: "selectDefault"}, schValid)
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cxt.mergeEvaluated(schCxt, Name)
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gen.assign(valid, schValid)
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}
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gen.endIf()
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cxt.pass(valid)
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})
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},
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},
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{
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keyword: "selectCases",
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dependencies: ["select"],
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metaSchema: {
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type: "object",
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additionalProperties: metaSchema,
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},
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},
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{
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keyword: "selectDefault",
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dependencies: ["select", "selectCases"],
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metaSchema,
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},
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]
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}
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module.exports = getDef
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