@langchain/core/dist/utils/zod-to-json-schema/parsers/object.js

Core LangChain.js abstractions and schemas

import { parseDef } from "../parseDef.js";

//#region src/utils/zod-to-json-schema/parsers/object.ts
function parseObjectDef(def, refs) {
	const forceOptionalIntoNullable = refs.target === "openAi";
	const result = {
		type: "object",
		properties: {}
	};
	const required = [];
	const shape = def.shape();
	for (const propName in shape) {
		let propDef = shape[propName];
		if (propDef === void 0 || propDef._def === void 0) continue;
		let propOptional = safeIsOptional(propDef);
		if (propOptional && forceOptionalIntoNullable) {
			if (propDef._def.typeName === "ZodOptional") propDef = propDef._def.innerType;
			if (!propDef.isNullable()) propDef = propDef.nullable();
			propOptional = false;
		}
		const parsedDef = parseDef(propDef._def, {
			...refs,
			currentPath: [
				...refs.currentPath,
				"properties",
				propName
			],
			propertyPath: [
				...refs.currentPath,
				"properties",
				propName
			]
		});
		if (parsedDef === void 0) continue;
		result.properties[propName] = parsedDef;
		if (!propOptional) required.push(propName);
	}
	if (required.length) result.required = required;
	const additionalProperties = decideAdditionalProperties(def, refs);
	if (additionalProperties !== void 0) result.additionalProperties = additionalProperties;
	return result;
}
function decideAdditionalProperties(def, refs) {
	if (def.catchall._def.typeName !== "ZodNever") return parseDef(def.catchall._def, {
		...refs,
		currentPath: [...refs.currentPath, "additionalProperties"]
	});
	switch (def.unknownKeys) {
		case "passthrough": return refs.allowedAdditionalProperties;
		case "strict": return refs.rejectedAdditionalProperties;
		case "strip": return refs.removeAdditionalStrategy === "strict" ? refs.allowedAdditionalProperties : refs.rejectedAdditionalProperties;
	}
}
function safeIsOptional(schema) {
	try {
		return schema.isOptional();
	} catch {
		return true;
	}
}

//#endregion
export { parseObjectDef };
//# sourceMappingURL=object.js.map