Paul Berry
90098c6c49
We do this by requiring that the context argument to inferExpression is non-null (since `_` is represented by `null`). Instead of passing `null` as a type context, we pass `const UnknownType()`, which represents `?`. See #32291. Change-Id: I9a0d0f3bcd74e6226004c85f63cf8be49934388a Reviewed-on: https://dart-review.googlesource.com/43761 Commit-Queue: Paul Berry <paulberry@google.com> Reviewed-by: Kevin Millikin <kmillikin@google.com> Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
22 lines
827 B
Dart
22 lines
827 B
Dart
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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/*@testedFeatures=inference*/
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library test;
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void main() {
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var /*@type=List<List<String>>*/ l = /*@typeArgs=List<String>*/ [
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/*@typeArgs=String*/ ["hi", "world"]
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];
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var /*@type=Iterable<List<String>>*/ i1 =
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l. /*@target=Iterable::map*/ /*@typeArgs=List<String>*/ map(
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/*@returnType=List<String>*/ (/*@type=List<String>*/ ll) =>
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ll ?? /*@typeArgs=String*/ []);
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var /*@type=Iterable<int>*/ i2 =
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i1. /*@target=Iterable::map*/ /*@typeArgs=int*/ map(
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/*@returnType=int*/ (List<String> l) =>
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l. /*@target=List::length*/ length);
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print(i2);
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}
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