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Feature Framework API

The Feature framework is the Native extension development framework for openvela QuickApp, providing interoperability between JS and C/C++. Developers can extend new system capabilities for QuickApps through the Feature framework, which handles parameter conversion, lifecycle management, asynchronous programming models, and automatic interface generation (JIDL).

Framework Overview

• Feature Framework Overview — Architecture, concept model (Module / Prototype / Instance), JIDL interface description language

Core Data Types

• Type Definitions — Basic type aliases, handle types, enumerations, structures

Runtime Interfaces

• Context and Data Conversion — ft_value_t creation/destruction, type conversion, array/object operations
• Feature Export Interface — Full runtime API for Feature developers (memory, callbacks, Promise, events, Worker, JSON)
• Framework Management Interface — APIs for QuickApp framework implementors to create and configure the Feature manager

Frontend Interoperability

• QuickJS Interoperability — ft_value_t and JSValue conversion (QuickJS frontend only)

Debugging and Performance

• Trace Instrumentation — Built-in sched_note performance tracing macros for the Feature framework