1d339653d5
- Add VariableSpec class with magnitude field validation - Add Formula class supporting multiple input/output variables - Support d4rt_code as string or object with code field - Add comprehensive tests for parsing and serialization - Fix broken test import in pruebas_d4rt_test.dart Follows README.md format requirements exactly
44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
[](https://github.com/dart-lang/tools/actions/workflows/file.yml)
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[](https://pub.dev/packages/file)
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[](https://pub.dev/packages/file/publisher)
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A generic file system abstraction for Dart.
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## Features
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Like `dart:io`, `package:file` supplies a rich Dart-idiomatic API for accessing
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a file system.
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Unlike `dart:io`, `package:file`:
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- Can be used to implement custom file systems.
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- Comes with an in-memory implementation out-of-the-box, making it super-easy to
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test code that works with the file system.
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- Allows using multiple file systems simultaneously. A file system is a
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first-class object. Instantiate however many you want and use them all.
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## Usage
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Implement your own custom file system:
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```dart
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import 'package:file/file.dart';
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class FooBarFileSystem implements FileSystem { ... }
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```
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Use the in-memory file system:
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```dart
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import 'package:file/memory.dart';
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var fs = MemoryFileSystem();
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```
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Use the local file system (requires dart:io access):
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```dart
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import 'package:file/local.dart';
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var fs = const LocalFileSystem();
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```
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