Using Swift URL from Go over WebAssembly.

WebAssembly module works differently with >= iOS 17.

WebAssembly module is built with Swift 5.8. And it's Core Foundation of Foundation is from apple/[email protected] (It has iOS 15's implementation). And since iOS 17, iOS's implementation checks url validity less strictly and normalizes url automatically.

// iOS 15, 16: nil
// iOS 17: Optional(https://airbridge.io/?%7B%7D)
URL(string: "https://airbridge.io/?{}")

Foundation's URL, NSURL class wraps Core Foundation's CFURL class.

go get github.com/ab180/go-swift-url

import "github.com/ab180/go-swift-url/checker"

checker, error := checker.New()
if error != nil {
	test.Error(error)
}
defer checker.Close()

// true
isValid, _ := checker.IsValid("https://example.example")
// false
isValid, _ = checker.IsValid("!@#$%^&*()")
// false
isCanBeModified, _ := checker.IsCanBeModified("https://example.example")
// true
isCanBeModified, _ = checker.IsCanBeModified("https://example.example/?url=example%3A%2F%2F")

Checks Swift's URL can be initialized with url.

Checks url can be modified by Swift's URLComponents.queryItems.

When Swift's URLComponents can not be initialized with url, then return false.

import Foundation

var url = URL(string: "https://example.example/?url=example%3A%2F%2F")!
var editor = URLComponents(url: url, resolvingAgainstBaseURL: false)!
let queryItems = editor.queryItems
editor.queryItems = queryItems

// https://example.example/?url=example:https://
print(editor.url)

1. Modify checker.swift.
2. Run ./script/build.sh.
   • If you add more functions, then you must add below line to script/build.sh.
   • -Xlinker --export={FUNCTION_NAME} \
3. Modify checker.go.
4. Commit and push checker.swift, checker.wasm, checker.go.

• https://github.com/swiftwasm/swift

Requirement is needed for development not for usage.