go/misc/cgo/test/issue30527.go

// Copyright 2019 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.

// Issue 30527: function call rewriting casts untyped
// constants to int because of ":=" usage.

package cgotest

import "misc/cgo/test/issue30527"

func issue30527G() {
	issue30527.G(nil)
}
cmd/cgo: simplify and fix handling of untyped constants Instead of trying to guess type of constants in the AST, which is hard, use the "var cgo%d Type = Constant" so that typechecking is left to the Go compiler. The previous code could still fail in some cases for constants imported from other modules or defined in other, non-cgo files. Fixes #30527 Change-Id: I2120cd90e90a74b9d765eeec53f6a3d2cfc1b642 Reviewed-on: https://go-review.googlesource.com/c/go/+/164897 Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> 2019-03-01 15:12:19 -07:00			`// Copyright 2019 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.`

			`// Issue 30527: function call rewriting casts untyped`
			`// constants to int because of ":=" usage.`

			`package cgotest`

misc/cgo/test: simplify for module mode When we were first introducing module mode, CL 163418 moved many of the tests in misc/cgo/test into their own test binary under testdata so misc/cgo/test continued to work in both GOPATH mode and module mode. This introduce a somewhat complicated test driver into misc/cgo/test. Since the misc/cgo/test test had to invoke "go test" as a subprocess, this required care to thread any build flags down into the subprocess. The output from any failures of the sub-process was also less than ideal. Now that we don't have to worry about running these in GOPATH mode any more, this CL moves all of the tests back into misc/cgo/test and drops the test driver. There are two slight complications: - Test41761 was added after this split and has a C type "S" that's also present in misc/cgo/test itself. We rename that to keep that test working. - TestCgo in go/internal/srcimporter now fails to import misc/cgo/test because misc/cgo/test now contains imports of other "misc" module packages and the importer it sets up isn't configured to allow that. We fix this by setting up a build context that's configured for this. Preparation for #37486. Change-Id: I3c4f73540e0482bbd493823cca44b0ce7fac01f3 Reviewed-on: https://go-review.googlesource.com/c/go/+/447355 Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> 2022-10-21 13:18:14 -06:00			`import "misc/cgo/test/issue30527"`
cmd/cgo: simplify and fix handling of untyped constants Instead of trying to guess type of constants in the AST, which is hard, use the "var cgo%d Type = Constant" so that typechecking is left to the Go compiler. The previous code could still fail in some cases for constants imported from other modules or defined in other, non-cgo files. Fixes #30527 Change-Id: I2120cd90e90a74b9d765eeec53f6a3d2cfc1b642 Reviewed-on: https://go-review.googlesource.com/c/go/+/164897 Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> 2019-03-01 15:12:19 -07:00
			`func issue30527G() {`
			`issue30527.G(nil)`
			`}`