Johnni Winther
9c9ab11450
Include initial handling of unevaluated constants from environment. Change-Id: I288801b42a9e25e440baa3eac9ce88263acea0a7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97241 Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com> Auto-Submit: Johnni Winther <johnniwinther@google.com>
20 lines
784 B
Dart
20 lines
784 B
Dart
// Copyright (c) 2016, 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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/// Collects definitions provided to the compiler via the `-D` flag.
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///
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/// Environment variables can be used in the user code in two ways. From
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/// conditional imports, and from `const String.fromEnvironment` and
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/// other similar constructors.
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abstract class Environment {
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/// Return the string value of the given key.
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///
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/// Note that `bool.fromEnvironment` and `int.fromEnvironment` are also
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/// implemented in terms of `String.fromEnvironment`.
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String valueOf(String key);
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/// Returns the full environment as map.
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Map<String, String> toMap();
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}
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