Function getHook

tools/challenge-parser/parser/plugins/add-hooks.js:23–40

(tree, sectionName)

}

function getHook(tree, sectionName) {
  const section = getSection(tree, sectionName);

  if (section.length === 0) return;
  if (section.length > 1)
    throw Error(
      `# ${sectionName} section must only contain a single code block`
    );

  const codeNode = section[0];

  if (codeNode.type !== 'code')
    throw Error(`# ${sectionName} section must contain a code block`);
  if (codeNode.lang !== 'javascript' && codeNode.lang !== 'js')
    throw Error(`# ${sectionName} hook must be written in JavaScript`);

  return codeNode.value;
}

module.exports = plugin;