"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.specFromWasm = specFromWasm;
var _utils = require("./utils");
/**
 * Obtains the contract spec XDR from a contract's wasm binary.
 * @param wasm The contract's wasm binary as a Buffer.
 * @returns The XDR buffer representing the contract spec.
 * @throws {Error} If the contract spec cannot be obtained from the provided wasm binary.
 */
function specFromWasm(wasm) {
  const customData = (0, _utils.parseWasmCustomSections)(wasm);
  let xdrSections = customData.get("contractspecv0");
  if (!xdrSections || xdrSections.length === 0) {
    throw new Error("Could not obtain contract spec from wasm");
  }
  return Buffer.from(xdrSections[0]);
}