Regression: compiler stack overflow in transformIteratorBody/lowerStmtListExprs

[zielmicha]

Current devel (d06da9c) compiler crashes with stack overflow on reactor/redis.nim from https://github.com/zielmicha/reactor.nim (ba98bb8845a79d). Release 0.18.0 and even cc5140d compiles the code without a problem.

Unfortunately I don't know yet how to create a minimal example - the code makes heavy use of reactor.nim async macro.

[zielmicha]

When I change this:

proc connectProc(client: RedisClient, host: string, port: int, password: string) {.async.} =
  client.pipe = await connectTcp(host, port)
  if password != "":
    await client.auth(password)

to

proc connectProc(client: RedisClient, host: string, port: int, password: string) {.async.} =
  let x = await connectTcp(host, port)
  client.pipe = x
  if password != "":
    await client.auth(password)

it starts to work.

I still can't produce smaller example (obvious one works).

[Araq]

Excellent you reported this before we got 0.19 out. :-)

[yglukhov]

@zielmicha I'm getting another problem:

async/stream.nim(151, 32) Error: type mismatch: got <Buffer>
but expected one of:
proc unsafeInitView[T](data: var seq[T]): View[T]
proc unsafeInitView[T; R: ref](data: ptr T; len: int; gcKeep: R): View[T]
proc unsafeInitView(data: var string): View[char]
proc unsafeInitView[T](data: ptr T; len: int): View[T]

expression: unsafeInitView(data)

[yglukhov]

nevermind, fix on its way