Wyn vs Go

Wyn and Go solve similar problems — compiled languages for backend services, CLI tools, and systems programming. Both produce native binaries, both have built-in concurrency, and both compile fast. Here's where they differ.

Quick Facts

	Wyn	Go
First release	2025	2009
Compiles to	C (then native binary)	Native binary
Memory management	ARC (no GC pauses)	Garbage collector
Hello world binary	49KB	2.2MB
Concurrency model	spawn/await + channels	goroutines + channels
Package manager	wyn pkg	go mod
Generics	Yes (monomorphization)	Yes (since 1.18)
Pattern matching	Yes (match expressions)	No (switch only)

Benchmark Comparison

All benchmarks on Apple M4, macOS 15. Wyn compiled with clang -O2, Go with go build.

Benchmark	Wyn	Go 1.22
fib(35) recursive	33ms	38ms
Sort 100K ints	2ms	15ms
Spawn 1M tasks	~247ms / 2MB RSS	~279ms / 12MB RSS
Hello world binary	49KB	2.2MB
Compile time (hello)	~60ms	~500ms

Wyn compiles to C, so compute-heavy code runs at near-native speed. Go's garbage collector adds memory overhead — Wyn's ARC keeps RSS low.

Syntax Comparison

Structs and Methods

Go puts methods outside the struct definition. Wyn puts them inside, like Python classes.

// Go
type User struct {
    Name string
    Age  int
}

func (u User) IsAdult() bool {
    return u.Age >= 18
}

// Wyn
struct User {
    name: string
    age: int

    fn is_adult(self) -> bool {
        return self.age >= 18
    }
}

Error Handling

Go uses multiple return values and if err != nil. Wyn uses Result types with pattern matching.

// Go
result, err := divide(10, 0)
if err != nil {
    log.Fatal(err)
}
fmt.Println(result)

// Wyn
match divide(10, 0) {
    Ok(v) => println(v.to_string())
    Err(e) => println("error: " + e)
}

Concurrency

Both languages have lightweight concurrency. Go uses goroutines, Wyn uses spawn/await.

// Go
ch := make(chan int)
go func() {
    ch <- fib(38)
}()
result := <-ch

// Wyn
var f = spawn fib(38)
var result = await f

Wyn's spawn/await returns a typed future — no channel boilerplate for simple parallel work. Both scale linearly on multiple cores.

Pipe Operator

Wyn has a pipe operator for chaining function calls. Go has no equivalent.

// Wyn
var result = data
    |> parse
    |> validate
    |> transform
    |> serialize

// Go — nested calls
result := serialize(transform(validate(parse(data))))

When to Choose Wyn

• You want tiny binaries (49KB vs 2.2MB) for containers or embedded deployment
• You want no GC pauses — Wyn's ARC is deterministic
• You prefer methods inside structs instead of separate receiver functions
• You want pattern matching and a pipe operator
• You want a batteries-included stdlib with HTTP, SQLite, JSON, bcrypt, and GUI built in
• You're building CLI tools, web APIs, or data processing pipelines

When to Choose Go

• You need a mature ecosystem with thousands of production-tested libraries
• You need enterprise support and a large hiring pool
• You're building large-scale distributed systems where Go's tooling shines
• You need proven production stability at companies like Google, Uber, and Cloudflare

Feature-by-Feature

Feature	Wyn	Go
Native binary	✓	✓
No GC	✓ (ARC)	✗ (GC)
Sub-second compile	✓	✓
Methods in struct body	✓	✗
Pipe operator	✓	✗
List comprehensions	✓	✗
Pattern matching	✓	✗
Built-in HTTP server	✓	✓ (net/http)
Built-in SQLite	✓	✗ (third-party)
Generators (yield)	✓	✗
Cross-compilation	✓ (5 targets)	✓ (many targets)
REPL	✓	✗

Try Wyn

Install Wyn in one command and build your first binary:

curl -fsSL https://wynlang.com/install.sh | sh
wyn run hello.wyn

The install takes about 10 seconds. Your first wyn run compiles and executes in under 400ms. No GOPATH, no go.mod — just write a .wyn file and run it.

See Also

• Coming from Go — detailed migration guide with side-by-side code
• Benchmarks — full performance numbers
• Wyn vs Python — comparison for Python developers
• Wyn vs Rust — comparison for Rust developers