Xianyu Technology

Aug 4, 2020 · Mobile Development

Dart Annotation Code Generation in Flutter: Concepts and Implementation

Flutter’s lack of runtime reflection forces developers to use compile‑time annotation‑based code generation, where simple const annotations trigger custom generators defined via source_gen, configured in build.yaml, and can emit code through string concatenation, Mustache templates, or the code_builder library, offering a flexible alternative to Java’s APT approach.