[3.5.1] Iterable is missing in lib.es2015.promise.d.ts

[Rouden]

TypeScript Version:

• 3.5.1
• 3.6.0-dev.20190601

Search Terms: async, await, polyfill, csproj, TypeScriptLib

Code

tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "module": "none",
    "lib": ["dom", "es5", "es2015.promise"],
    "strict": true,
  }
}

a.ts

// empty

Expected behavior:

> npx typescript@3.4.5
// ok

Actual behavior:

> npx typescript@3.5.1
../path/typescript/lib/lib.es2015.promise.d.ts:129:21 - error TS2304: Cannot find name 'Iterable'.

129     race<T>(values: Iterable<T>): Promise<T extends PromiseLike<infer U> ? U : T>;
                        ~~~~~~~~


Found 1 error.

Playground Link: None

Related Issues: Not found.

Workaround:
Add "es2015.iterable" to lib

[SpurYang]

Me too, miss
/// <
reference lib="es2015.symbol"

[simonua]

Does this relate to #31676?

[SergioMorchon]

Any news on this?

[simonua]

3.5.3 exhibited the same problem for me. I have our TypeScript dependencies locked at 3.4.5 and cannot go higher at this time.

[SergioMorchon]

@pushkin- nope, with 3.5.3 shows the same error:

node_modules/typescript/lib/lib.es2015.promise.d.ts:129:21 - error TS2304: Cannot find name 'Iterable'

[SergioMorchon]

@rbuckton any news on this? What do you recommend to bypass this issue to start using newer TypeScript versions?

[CervEdin]

This workaround appears to work

Workaround is to add es2015.iterable to lib

headintheclouddev/typings-suitescript-2.0#121 (comment)

Unfortunately this ads typings for additional ES2015 iterable features

[rbuckton]

Fixed by #35998.

[rbuckton]

We are pushing awaited until after TS3.9 while we continue to assess the impact of the change. While this means we are essentially reverting #35998 with #37610, #37610 leaves in place the change that addressed this issue.