| # sqlite |
| |
| An example for `package:code_assets` demonstrating how to bundle a locally built |
| sqlite3 dynamic library. (See [../sqlite_prebuilt](../sqlite_prebuilt) for an |
| example that that uses a prebuilt dynamic library.) |
| |
| This project is a minimal, cross-platform demonstration of how to use Dart's |
| [build hooks][], with code assets and `dart:ffi` to call a simple function from a |
| popular C library. This project uses `sqlite3_libversion` from the `sqlite3` |
| library. |
| |
| The SQLite source (amalgamation) can be found on |
| https://www.sqlite.org/download.html. |
| |
| [build hooks]: https://dart.dev/tools/hooks |
| |
| ## How it works |
| |
| The native code is built by the [`hook/build.dart`](hook/build.dart), which is |
| run by the Dart SDK CLI tools. This build hook compiles the C code from |
| [`third_party/sqlite/sqlite3.c`](third_party/sqlite/sqlite3.c) into a dynamic library. |
| |
| The Dart FFI bindings to the C code are generated by |
| [`tool/ffigen.dart`](tool/ffigen.dart). FFIgen generates Dart FFI bindings from |
| [`third_party/sqlite/sqlite3.h`](third_party/sqlite/sqlite3.h) into |
| [`lib/src/third_party/sqlite3.g.dart`](lib/src/third_party/sqlite3.g.dart). |
| |
| The Dart code in [`lib/src/sqlite.dart`](lib/src/sqlite.dart) uses the |
| generated FFI bindings to provide a Dart API (not exposing any C types) for the |
| users of this package. |
