Swift & Objective-C Backend

Fish provides first-class support for Swift and Objective-C projects across macOS, iOS, and Linux.

Detection

Fish automatically detects Swift projects by inspecting:

Package.swift (Swift Package Manager)
*.xcodeproj / *.xcworkspace (Xcode projects)

Supported Commands

bash

fish build     # Compiles SwiftPM modules using swift build
fish test      # Executes XCTest test suites
fish check     # Runs swiftc syntax and typecheck validation

Configuration in `fish.toml`

toml

backend = "swift"
jobs = 4

[cache]
enabled = true