ecma parser in TypeScript

[sbusch99]

Hi,

I ported into TypeScript the ecma5 grammar you have in the examples (I'm using Angular 17). I got everything to build, but I'm failing on a simple let x=5; line. The error is MismatchedTokenException: Expecting token of type --> Semicolon <-- but found --> '' <--.

It's entirely possible that I messed up changing the code (there were a bunch of changes). I'm happy to share what I've done.

I'm hoping you have a "oh yeah, you missed this" insight.

Thanks.

Steve Buschman

[msujew]

Hey @sbusch99,

I believe it definitely makes sense for you to share a repo or something, so that people can look into it. I don't think there's any general advice to give here.

[bd82]

Hello @sbusch99

The ECMA5 example is just that, an example.
As the grammar itself is non-trivial it is quite likely the grammar is not production ready and may include bugs.

But in your case I suspect it is simply because you are trying to parse EMCAScript6 (2015) with an ECMAScript 5
Grammar.

• let / const were introduced in ECMAScript 6...