2 Object.defineProperty(exports, "__esModule", { value: true });
3 const codegen_1 = require("../../compile/codegen");
4 const types_1 = require("../discriminator/types");
6 message: ({ params: { discrError, tagName } }) => discrError === types_1.DiscrError.Tag
7 ? `tag "${tagName}" must be string`
8 : `value of tag "${tagName}" must be in oneOf`,
9 params: ({ params: { discrError, tag, tagName } }) => (0, codegen_1._) `{error: ${discrError}, tag: ${tagName}, tagValue: ${tag}}`,
12 keyword: "discriminator",
17 const { gen, data, schema, parentSchema, it } = cxt;
18 const { oneOf } = parentSchema;
19 if (!it.opts.discriminator) {
20 throw new Error("discriminator: requires discriminator option");
22 const tagName = schema.propertyName;
23 if (typeof tagName != "string")
24 throw new Error("discriminator: requires propertyName");
26 throw new Error("discriminator: mapping is not supported");
28 throw new Error("discriminator: requires oneOf keyword");
29 const valid = gen.let("valid", false);
30 const tag = gen.const("tag", (0, codegen_1._) `${data}${(0, codegen_1.getProperty)(tagName)}`);
31 gen.if((0, codegen_1._) `typeof ${tag} == "string"`, () => validateMapping(), () => cxt.error(false, { discrError: types_1.DiscrError.Tag, tag, tagName }));
33 function validateMapping() {
34 const mapping = getMapping();
36 for (const tagValue in mapping) {
37 gen.elseIf((0, codegen_1._) `${tag} === ${tagValue}`);
38 gen.assign(valid, applyTagSchema(mapping[tagValue]));
41 cxt.error(false, { discrError: types_1.DiscrError.Mapping, tag, tagName });
44 function applyTagSchema(schemaProp) {
45 const _valid = gen.name("valid");
46 const schCxt = cxt.subschema({ keyword: "oneOf", schemaProp }, _valid);
47 cxt.mergeEvaluated(schCxt, codegen_1.Name);
50 function getMapping() {
52 const oneOfMapping = {};
53 const topRequired = hasRequired(parentSchema);
54 let tagRequired = true;
55 for (let i = 0; i < oneOf.length; i++) {
57 const propSch = (_a = sch.properties) === null || _a === void 0 ? void 0 : _a[tagName];
58 if (typeof propSch != "object") {
59 throw new Error(`discriminator: oneOf schemas must have "properties/${tagName}"`);
61 tagRequired = tagRequired && (topRequired || hasRequired(sch));
62 addMappings(propSch, i);
65 throw new Error(`discriminator: "${tagName}" must be required`);
67 function hasRequired({ required }) {
68 return Array.isArray(required) && required.includes(tagName);
70 function addMappings(sch, i) {
72 addMapping(sch.const, i);
75 for (const tagValue of sch.enum) {
76 addMapping(tagValue, i);
80 throw new Error(`discriminator: "properties/${tagName}" must have "const" or "enum"`);
83 function addMapping(tagValue, i) {
84 if (typeof tagValue != "string" || tagValue in oneOfMapping) {
85 throw new Error(`discriminator: "${tagName}" values must be unique strings`);
87 oneOfMapping[tagValue] = i;
92 exports.default = def;
93 //# sourceMappingURL=index.js.map