Function linkBytecode

packages/hardhat-utils/src/bytecode.ts:75–99

(
  artifact: Artifact,
  libraries: LibraryLink[],
)

 * @returns The linked bytecode with all provided libraries correctly linked.
 */
export function linkBytecode(
  artifact: Artifact,
  libraries: LibraryLink[],
): PrefixedHexString {
  const { bytecode, linkReferences } = artifact;
  const replacements: BytecodeReplacement[] = [];

  for (const { sourceName, libraryName, address } of libraries) {
    const contractLinkReferences =
      linkReferences[sourceName]?.[libraryName] ?? [];
    const unprefixedAddress = getUnprefixedHexString(address);

    for (const { start, length } of contractLinkReferences) {
      replacements.push({
        start: 2 + start * 2,
        length: length * 2,
        value: unprefixedAddress,
      });
    }
  }

  return getPrefixedHexString(
    applyBytecodeReplacements(bytecode, replacements),
  );
}