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Nearly all parts of the Impeller rendering pipeline now rely on DlPath and PathSource objects for their path description needs. The impeller path only exists for impeller's unit tests and benchmarks to have a local way to construct paths. We implement path construction for the DlPath object via DlPathBuilder which makes the impeller family of path objects functionally obsolete and so they are now deleted.
Flutter Engine
The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.
More tooling is available to make development experiences easier:
| Target | Tool |
|---|---|
| Web | felt |
| Mobile or Desktop | et |
To learn about running tests, see testing the engine.