Comment by satanacchio

The first reason is because if we supported ts features that require transformation (such as enume) we would also need to support sourcemaps, so in the first iteration I decided not to, to avoid being overwhelmed. Right now we replace inline types with whitespace, so locations are preserved. We plan to add those features, probably behind a flag at the beginning. We need to move in small steps and think very carefully, every decision could make a huge impact on the ecosystem so I decided to start with the smalled subset possible.