Function getModuleResolver

src/resolvers.ts:490–509

(
  root: string,
  path: string,
  servePath = `/${join("_import", path)}`,
  getHash?: (path: string) => string
)

 * with the resolveImport returned by getResolvers (assuming caching).
 */
export function getModuleResolver(
  root: string,
  path: string,
  servePath = `/${join("_import", path)}`,
  getHash?: (path: string) => string
): (specifier: string) => Promise<string> {
  return async (specifier) => {
    return isPathImport(specifier)
      ? relativePath(servePath, resolveImportPath(root, resolvePath(path, specifier), getHash))
      : builtins.has(specifier) || specifier.startsWith("observablehq:")
      ? relativePath(servePath, resolveBuiltin(specifier))
      : specifier.startsWith("npm:")
      ? relativePath(servePath, await resolveNpmImport(root, specifier.slice("npm:".length)))
      : specifier.startsWith("jsr:")
      ? relativePath(servePath, await resolveJsrImport(root, specifier.slice("jsr:".length)))
      : !/^\w+:/.test(specifier)
      ? relativePath(servePath, await resolveNodeImport(root, specifier))
      : specifier;
  };
}

export function resolveBuiltin(specifier: string): string {
  if (builtins.has(specifier)) return builtins.get(specifier)!;