go/test/init.go

// errorcheck

// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Verify that erroneous use of init is detected.
// Does not compile.

package main

func init() {
}

func main() {
	init()         // ERROR "undefined.*init"
	runtime.init() // ERROR "undefined.*runtime\.init"
	var _ = init   // ERROR "undefined.*init"
}
test: use testlib (fourth 100) X ,s;^// \$G (\$D/)?\$F\.go $;// compile;g X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A $;// build;g X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A && \./\$A\.out $;// run;g X ,s;^// errchk \$G( -e)? (\$D/)?\$F\.go $;// errorcheck;g R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/5673079 2012-02-16 21:50:37 -07:00			`// errorcheck`
gc: fix init of packages named main This change removes the special case which existed for handling the initalization of the main package, so that other modules named 'main' get properly initialized when imported. Note that gotest of main packages will break in most cases without this. R=rsc CC=golang-dev https://golang.org/cl/4190050 2011-03-02 14:18:17 -07:00
			`// Copyright 2011 The Go Authors. All rights reserved.`
			`// Use of this source code is governed by a BSD-style`
			`// license that can be found in the LICENSE file.`

test: commentary for [h-m]*.go R=golang-dev, gri CC=golang-dev https://golang.org/cl/5674112 2012-02-23 00:47:26 -07:00			`// Verify that erroneous use of init is detected.`
			`// Does not compile.`

gc: fix init of packages named main This change removes the special case which existed for handling the initalization of the main package, so that other modules named 'main' get properly initialized when imported. Note that gotest of main packages will break in most cases without this. R=rsc CC=golang-dev https://golang.org/cl/4190050 2011-03-02 14:18:17 -07:00			`package main`

			`func init() {`
			`}`

			`func main() {`
Revert "cmd/compile: improve error message if init is directly invoked" This reverts commit cb6e0639fb090ea0e129b1ddb956a7e645cff285. The fix is incorrect as it's perfectly fine to refer to an identifier 'init' inside a function, and 'init' may even be a variable of function value. Misspelling 'init' in that context would lead to an incorrect error message. Reopened #8481. Change-Id: I49787fdf7738213370ae6f0cab54013e9e3394a8 Reviewed-on: https://go-review.googlesource.com/37876 Run-TryBot: Robert Griesemer <gri@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> 2017-03-06 16:41:56 -07:00			`init() // ERROR "undefined.*init"`
cmd/compile: reorganize init functions Instead of writing an init function per package that does the same thing for every package, just write that implementation once in the runtime. Change the compiler to generate a data structure that encodes the required initialization operations. Reduces cmd/go binary size by 0.3%+. Most of the init code is gone, including all the corresponding stack map info. The .inittask structures that replace them are quite a bit smaller. Most usefully to me, there is no longer an init function in every -S output. (There is an .inittask global there, but it's much less distracting.) After this CL we could change the name of the "init.ializers" function back to just "init". Update #6853 R=go1.13 Change-Id: Iec82b205cc52fe3ade4d36406933c97dbc9c01b1 Reviewed-on: https://go-review.googlesource.com/c/go/+/161337 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> 2019-02-05 17:22:38 -07:00			`runtime.init() // ERROR "undefined.*runtime\.init"`
Revert "cmd/compile: improve error message if init is directly invoked" This reverts commit cb6e0639fb090ea0e129b1ddb956a7e645cff285. The fix is incorrect as it's perfectly fine to refer to an identifier 'init' inside a function, and 'init' may even be a variable of function value. Misspelling 'init' in that context would lead to an incorrect error message. Reopened #8481. Change-Id: I49787fdf7738213370ae6f0cab54013e9e3394a8 Reviewed-on: https://go-review.googlesource.com/37876 Run-TryBot: Robert Griesemer <gri@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> 2017-03-06 16:41:56 -07:00			`var _ = init // ERROR "undefined.*init"`
gc: fix init of packages named main This change removes the special case which existed for handling the initalization of the main package, so that other modules named 'main' get properly initialized when imported. Note that gotest of main packages will break in most cases without this. R=rsc CC=golang-dev https://golang.org/cl/4190050 2011-03-02 14:18:17 -07:00			`}`