achille-roussel

import asyncio
from types import coroutine

@coroutine
def future(value):
    yield value

@coroutine
def task(coro):
    for item in coro.__await__():

achille-roussel

This file describes how to install Go 1.22 and enable the range functions experimental feature.

Go has standard instructions for managing multiple installations at https://go.dev/doc/manage-install, this document focuses on how to install Go 1.22 rc1 to enable the range functions experiment.

💡 These instructions are only useful until Go 1.22 is officially released (the target is February 2024)

💡 Go 1.22 rc2 has now been released, these instructions are still valid, simply replace rc1 with rc2 to adapt (e.g., https://pkg.go.dev/golang.org/dl/go1.22rc2)

Installing Go 1.22 rc1

achille-roussel

package main

import (
	"fmt"
	"runtime"
	"strings"
	"time"
)

func main() {

achille-roussel

type Record struct {
  Key   []byte
  Value []byte
}

func (b *RecordBatch) Close() error { ... }

func (b *RecordBatch) ReadRecords(records []Record) (int, error) { ... }

achille-roussel

goos: darwin
goarch: amd64
BenchmarkAppend/Static         	50000000	        24.5 ns/op
BenchmarkAppend/Reflect        	20000000	        72.1 ns/op
BenchmarkAppend/Unsafe         	30000000	        43.7 ns/op
PASS
ok  	_/tmp	4.135s

achille-roussel

deps := go.mod

sources := \
    $(wildcard ./cmd/demo/*.go) \
    $(wildcard ./*.go)

./demo: $(deps) $(sources)
    GOOS=linux go build ./cmd/demo/

./demo.tar.gz: ./demo

achille-roussel

package main

import (
	"bytes"
	"compress/gzip"
	"reflect"
	"testing"
	"time"
	"unsafe"

achille-roussel

terraform console
> 100 * 0.5
0

achille-roussel

func errorTypeOf(err error) errorType {
    if err == nil {
        return errorNone
    }

    switch e := err.(type) {
    case interface {
        Timeout() bool
    }:
        if e.Timeout() {

achille-roussel

# Run in the root directory of a go package to list all direct github dependencies
# and create git submodules for them in the vendor directory.
for package in $(
  go list -f '{{.Deps}}' | tr "[" " " | tr "]" " " | xargs go list -f '{{if not .Standard}}{{.ImportPath}}{{end}}' | grep github.com | cut -d/ -f1-3 | grep -v $(go list .) | uniq
)
do
  git submodule add https://$package vendor/$package
done