Typescript interface declaration in RIOTJS components

[jberthet]

Hello,

I am using the RiotJS library in a project and Parcel as the builder/bundler. I am using typescript to have better code completion and errors reporting in my IDE.

The issue is, whenever I try to make an interface or type declaration in the <script> part of a .riot component, I get the following error at the interface declaration:

@parcel/transformer-js: Expression expected

I double checked, the <script> tag is set to lang="ts". Also the project compile fine if I remove the interface declaration.

I have made a very simple "Hello person" type of project to illustrate the issue that I join to this discussion. If someone try to build it, should have the error for test-ts-app.riot at line 13.

testts.zip

Thanks for any pointer you could provide to help me solve this issue.