Function enter

src/transform/forOf.js:10–30

(node)

export default function(ast, logger) {
  traverser.replace(ast, {
    enter(node) {
      const matches = matchAliasedForLoop(node);

      if (matches) {
        if (indexUsedInBody(matches)) {
          logger.warn(node, 'Index variable used in for-loop body', 'for-of');
          return;
        }

        if (matches.itemKind === 'var' || matches.indexKind === 'var') {
          logger.warn(node, 'Only for-loops with let/const can be transformed (use let transform first)', 'for-of');
          return;
        }

        return withComments(node, createForOf(matches));
      }

      if (node.type === 'ForStatement') {
        logger.warn(node, 'Unable to transform for loop', 'for-of');
      }
    }
  });
}