@sinclair/typebox
Version:
Json Schema Type Builder with Static Type Resolution for TypeScript
69 lines (67 loc) • 3.18 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Intrinsic = Intrinsic;
const type_1 = require("../create/type");
const index_1 = require("../template-literal/index");
const intrinsic_from_mapped_key_1 = require("./intrinsic-from-mapped-key");
const index_2 = require("../literal/index");
const index_3 = require("../union/index");
// ------------------------------------------------------------------
// TypeGuard
// ------------------------------------------------------------------
const kind_1 = require("../guard/kind");
// ------------------------------------------------------------------
// Apply
// ------------------------------------------------------------------
function ApplyUncapitalize(value) {
const [first, rest] = [value.slice(0, 1), value.slice(1)];
return [first.toLowerCase(), rest].join('');
}
function ApplyCapitalize(value) {
const [first, rest] = [value.slice(0, 1), value.slice(1)];
return [first.toUpperCase(), rest].join('');
}
function ApplyUppercase(value) {
return value.toUpperCase();
}
function ApplyLowercase(value) {
return value.toLowerCase();
}
function FromTemplateLiteral(schema, mode, options) {
// note: template literals require special runtime handling as they are encoded in string patterns.
// This diverges from the mapped type which would otherwise map on the template literal kind.
const expression = (0, index_1.TemplateLiteralParseExact)(schema.pattern);
const finite = (0, index_1.IsTemplateLiteralExpressionFinite)(expression);
if (!finite)
return { ...schema, pattern: FromLiteralValue(schema.pattern, mode) };
const strings = [...(0, index_1.TemplateLiteralExpressionGenerate)(expression)];
const literals = strings.map((value) => (0, index_2.Literal)(value));
const mapped = FromRest(literals, mode);
const union = (0, index_3.Union)(mapped);
return (0, index_1.TemplateLiteral)([union], options);
}
// prettier-ignore
function FromLiteralValue(value, mode) {
return (typeof value === 'string' ? (mode === 'Uncapitalize' ? ApplyUncapitalize(value) :
mode === 'Capitalize' ? ApplyCapitalize(value) :
mode === 'Uppercase' ? ApplyUppercase(value) :
mode === 'Lowercase' ? ApplyLowercase(value) :
value) : value.toString());
}
// prettier-ignore
function FromRest(T, M) {
return T.map(L => Intrinsic(L, M));
}
/** Applies an intrinsic string manipulation to the given type. */
function Intrinsic(schema, mode, options = {}) {
// prettier-ignore
return (
// Intrinsic-Mapped-Inference
(0, kind_1.IsMappedKey)(schema) ? (0, intrinsic_from_mapped_key_1.IntrinsicFromMappedKey)(schema, mode, options) :
// Standard-Inference
(0, kind_1.IsTemplateLiteral)(schema) ? FromTemplateLiteral(schema, mode, options) :
(0, kind_1.IsUnion)(schema) ? (0, index_3.Union)(FromRest(schema.anyOf, mode), options) :
(0, kind_1.IsLiteral)(schema) ? (0, index_2.Literal)(FromLiteralValue(schema.const, mode), options) :
// Default Type
(0, type_1.CreateType)(schema, options));
}