| // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'version.dart'; |
| import 'version_range.dart'; |
| |
| /// Returns whether [range1] is immediately next to, but not overlapping, |
| /// [range2]. |
| bool areAdjacent(VersionRange range1, VersionRange range2) { |
| if (range1.max != range2.min) return false; |
| |
| return (range1.includeMax && !range2.includeMin) || |
| (!range1.includeMax && range2.includeMin); |
| } |
| |
| /// Returns whether [range1] allows lower versions than [range2]. |
| bool allowsLower(VersionRange range1, VersionRange range2) { |
| if (range1.min == null) return range2.min != null; |
| if (range2.min == null) return false; |
| |
| var comparison = range1.min!.compareTo(range2.min!); |
| if (comparison == -1) return true; |
| if (comparison == 1) return false; |
| return range1.includeMin && !range2.includeMin; |
| } |
| |
| /// Returns whether [range1] allows higher versions than [range2]. |
| bool allowsHigher(VersionRange range1, VersionRange range2) { |
| if (range1.max == null) return range2.max != null; |
| if (range2.max == null) return false; |
| |
| var comparison = range1.max!.compareTo(range2.max!); |
| if (comparison == 1) return true; |
| if (comparison == -1) return false; |
| return range1.includeMax && !range2.includeMax; |
| } |
| |
| /// Returns whether [range1] allows only versions lower than those allowed by |
| /// [range2]. |
| bool strictlyLower(VersionRange range1, VersionRange range2) { |
| if (range1.max == null || range2.min == null) return false; |
| |
| var comparison = range1.max!.compareTo(range2.min!); |
| if (comparison == -1) return true; |
| if (comparison == 1) return false; |
| return !range1.includeMax || !range2.includeMin; |
| } |
| |
| /// Returns whether [range1] allows only versions higher than those allowed by |
| /// [range2]. |
| bool strictlyHigher(VersionRange range1, VersionRange range2) => |
| strictlyLower(range2, range1); |
| |
| bool equalsWithoutPreRelease(Version version1, Version version2) => |
| version1.major == version2.major && |
| version1.minor == version2.minor && |
| version1.patch == version2.patch; |