tree 81f3ca9248120e496a75f5916b9926e1496279dc
parent 76be911f2264bb3de71c9feebb0185455c802af7
author Aske Simon Christensen <askesc@google.com> 1547219645 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1547219645 +0000

Add front-end test for set/map literal disambiguation.

The test exposes three problems:

- The disambiguation criterion in the type inference is incorrect, as
  it infers a map when the context is a LinkedHashSet. This will be
  fixed in an upcoming CL.

- Assigning a map literal to a LinkedHashMap produces a static error
  ("isn't of expected type") due to exact types. Rules for exact types
  are currently unspecified, and the language team has expressed some
  interest in allowing this case. See also
  https://github.com/dart-lang/sdk/issues/33307

- Type arguments for the map literal are not inferred from the context
  when the outer context type is a LinkedHashMap. This is consistent
  between the CFE and analyzer. If the LinkedHashMap case is to be
  supported, this must be fixed as well.

Change-Id: I1519c844dae1f599306446c992cfe4825e4f20d4
Reviewed-on: https://dart-review.googlesource.com/c/88726
Reviewed-by: Peter von der Ahé <ahe@google.com>