TypeScript option verbatimModuleSyntax not supported

[Zeswen]

TypeScript has an option verbatimModuleSyntax to always import types using the type prefix.

tsc fails to pass the checks.

import {
  CallOptions, // 'CallOptions' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.ts(1484)
  ChannelCredentials,
  Client,
  ClientOptions, // 'ClientOptions' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.ts(1484)
  ClientUnaryCall // 'ClientUnaryCall ' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.ts(1484)
  handleUnaryCall, // 'handleUnaryCall' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.ts(1484)
  makeGenericClientConstructor,
  Metadata,
  ServiceError, // 'ServiceError' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.ts(1484)
  UntypedServiceImplementation, // 'UntypedServiceImplementation' is a type and must be imported using a type-only import when 'verbatimModuleSyntax' is enabled.ts(1484)
} from "@grpc/grpc-js";

Including the type prefix to the previous variables will fix the issue.

[stephenh]

Hi @Zeswen , the codegen library that we use, ts-poet, has support for type imports by just adding a t: prefix, so changing like imp("CallOptions@@grpc/grpc-js") to imp("t:CallOptions@@grpc/grpc-js").

(The double @@ are weird, but the ts-poet import syntax came from awhile ago, before using @ as an org prefix was popular 🤷 )

But, anyway, this should be a pretty easy fix; if you'd like to work on a PR that just adds t: to the various imps you want changed, that'd be great. Thanks!

[Zeswen]

Thanks @stephenh for the insightful explanation! I've created #921 to address this 🙂

Amazing work on both ts-poet and ts-proto ❤️

[stephenh]

🎉 This issue has been resolved in version 1.157.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release
• v1.157.1

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