lib/src/wrappers.dart - Issue 2978383002: fix MapKeySet.lookup to be a valid override in strong mode

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Unified Diff: lib/src/wrappers.dart

Issue 2978383002: fix MapKeySet.lookup to be a valid override in strong mode (Closed)

Patch Set: Created 3 years, 5 months ago

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Index: lib/src/wrappers.dart

diff --git a/lib/src/wrappers.dart b/lib/src/wrappers.dart

index 1ff7dc162df882834d8392fd368638357468f865..555296d20b0687f624977d97ab4f09dc412f62a3 100644

--- a/lib/src/wrappers.dart

+++ b/lib/src/wrappers.dart

@@ -449,7 +449,7 @@ class MapKeySet<E> extends _DelegatingIterableBase<E>

/// Throws an [UnsupportedError] since there's no corresponding method for

/// [Map]s.

- E lookup(E element) =>

+ E lookup(Object element) =>

Jennifer Messerly 2017/07/19 23:47:36 after this change, this is now a valid implementat

throw new UnsupportedError("MapKeySet doesn't support lookup().");

/// Returns a new set which contains all the elements of [this] and [other].

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