Request For Decorator Support

[Bowenwu1]

Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go version go1.10.3 darwin/amd64

Does this issue reproduce with the latest release?

I'm not sure.

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/wubowen/Library/Caches/go-build"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/wubowen/go"
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/_0/ktsbq1md4r31khrfz3tcq40r0000gn/T/go-build281190730=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

Writing a Web Server.

What did you expect to see?

Nothing.

What did you see instead?

Nothing.

This is a not a bug report but an enhancement request.

What I want?

I want Go can support decorator just like in python, this is very helpful in server development!

For example, I want to refuse the unauth request for some method. Then, I must write many redundancy code to check auth state.

Just like python:

@login_required(login_url='/accounts/login/')
def my_view(request):
    ...

[ghost]

Related: #15398

[ianlancetaylor]

If you want to propose a change to the language, please follow the proposal process outlined at https://github.com/golang/proposal/blob/master/README.md . If you want to discuss ideas about how to add decorators to Go, please use the golang-nuts mailing list. I'm going to close this issue because there isn't enough information here to act on. We need more than just the suggestion of decorators; we need syntax, discussion of pros and cons, etc. Unfortunately we don't have time or knowledge to do that work for you just based on the mere suggestion. Thanks.