dart-setup-ffi-assets

Compile and package C/C++ code into Dart Code Assets via Native Assets hooks.

428|29|Updated Feb 25, 2026
One-click install
npx skills add https://github.com/dart-lang/skills --skill dart-setup-ffi-assets
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: dart-setup-ffi-assets
Source: https://github.com/dart-lang/skills/tree/main/skills/dart-setup-ffi-assets
Command: npx skills add https://github.com/dart-lang/skills --skill dart-setup-ffi-assets

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Guides agents in compiling and packaging C/C++ source code into dynamic or static libraries (Code Assets) using Dart's Native Assets hook system (via hook/build.dart and hook/link.dart) with secure download options, tree-shaking, and runtime integration.

Core Features & Use Cases

  • Automates local C/C++ compilation to platform-specific dynamic libraries using hook/build.dart and native_toolchain_c.
  • Applies dead-code elimination and symbol-based tree-shaking during linking to minimize binary size.
  • Supports precompiled dynamic library downloads with integrity verification for offline or constrained environments.
  • Includes verification steps for offline compliance and runtime integration tests.

Quick Start

Run the build and link hooks to compile local C sources into Code Assets and verify tree-shaking and offline fallback behavior.

Frequently Asked Questions about dart-setup-ffi-assets

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I compile C code into Dart FFI native assets?

Tree-shaking minimizes binary size by applying dead-code elimination and symbol-based stripping during the link phase. Executing hook/link.dart ensures the final dynamic library retains only required symbols for Dart FFI runtime integration.

Can I use precompiled binaries for Dart FFI instead of building from source?

Yes, you can use precompiled dynamic library downloads with integrity verification instead of building from source. This supports offline or constrained environments by fetching binaries and validating them before linking as Code Assets.

Does Dart Native Assets work for offline Flutter environments?

Dart Native Assets supports offline Flutter environments by verifying precompiled assets and enabling fallback behavior. The hook system includes verification steps for offline compliance to ensure runtime integration works without network access.

What is the best way to link C libraries with tree-shaking in Dart?

The best way to link C libraries with tree-shaking in Dart is using hook/link.dart to apply symbol-based dead-code elimination during the linking phase. This minimizes the final binary size while packaging the required Code Assets.

Why do I need hook/build.dart and hook/link.dart for Dart C interop?

You need hook/build.dart and hook/link.dart for Dart C interop because they orchestrate compiling C/C++ sources and applying tree-shaking during linking. This hook-based setup securely packages native code into Dart Code Assets for runtime integration.