// Copyright 2014 The Flutter Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // @dart = 2.8 import '../base/file_system.dart'; import 'build_system.dart'; /// An exception thrown when a rule declares an input that does not exist on /// disk. class MissingInputException implements Exception { const MissingInputException(this.missing, this.target); /// The file or directory we expected to find. final List<File> missing; /// The name of the target this file should have been output from. final String target; @override String toString() { final String files = missing.map((File file) => file.path).join(', '); return '$files were declared as an inputs, but did not exist. ' 'Check the definition of target:$target for errors'; } } /// An exception thrown if we detect a cycle in the dependencies of a target. class CycleException implements Exception { CycleException(this.targets); final Set<Target> targets; @override String toString() => 'Dependency cycle detected in build: ' '${targets.map((Target target) => target.name).join(' -> ')}'; } /// An exception thrown when a pattern is invalid. class InvalidPatternException implements Exception { InvalidPatternException(this.pattern); final String pattern; @override String toString() => 'The pattern "$pattern" is not valid'; } /// An exception thrown when a rule declares an output that was not produced /// by the invocation. class MissingOutputException implements Exception { const MissingOutputException(this.missing, this.target); /// The files we expected to find. final List<File> missing; /// The name of the target this file should have been output from. final String target; @override String toString() { final String files = missing.map((File file) => file.path).join(', '); return '$files were declared as outputs, but were not generated by ' 'the action. Check the definition of target:$target for errors'; } } /// An exception thrown when in output is placed outside of /// [Environment.buildDir]. class MisplacedOutputException implements Exception { MisplacedOutputException(this.path, this.target); final String path; final String target; @override String toString() { return 'Target $target produced an output at $path' ' which is outside of the current build or project directory'; } } /// An exception thrown if a build action is missing a required define. class MissingDefineException implements Exception { MissingDefineException(this.define, this.target); final String define; final String target; @override String toString() { return 'Target $target required define $define ' 'but it was not provided'; } }