Tinygo

This short introduction is outdated and unmaintained. Please refer to the official TinyGo documentation instead.

Tinygo is a Go compiler for microcontrollers and WebAssembly. It also supports x86 32 bit and 64 bit Linux.

Getting Started

Install

1sudo apt install llvm-7-dev libclang-7-dev
2go get -u github.com/tinygo-org/tinygo

Usage

To compile a Linux executable:

tinygo build -o hello_tiny hello.go

The output size of a hello world program is very impressive to me:

11.1M    hello
212K     hello_tiny

Or run it directly:

tinygo run hello.go

Go Language Features

Not supported:

• Maps.
• Concurrency.
• Reflection.
• Cgo.
• Many parts of standard library (due to the above missing pieces).
• recover()
• complex64, complex128, and arithmetic on complex numbers.
• defer a call on a function pointer.
• 3-index slicing, e.g. slice = array[2:4:7].