Re: [heycam/webidl] Added a definition of {{StringContext}} extended attribute. (#841)

> I asked why we can't have the semantics of "run before any of the operation steps".

That is a possible alternative - in fact this is what we used [before](https://w3c.github.io/webappsec-trusted-types/dist/spec/#!trustedtypes-extended-attribute). We could have that language in the other specs instead, possibly added via an extended attribute. The move to IDL type mapping is to avoid having type unions and branching on the types in each operation. Additional small advantage to changing this in IDL type conversion is that it aligns with what we implement (and what we think is the best way to implement TT). 

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/heycam/webidl/pull/841#issuecomment-586139124