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go/misc/cgo/testgodefs/testdata/main.go
Matthew Dempsky b565d1ec16 cmd/cgo: use type aliases for #define type macros
Cgo's initial design for handling "#define foo int*" involved
rewriting "C.foo" to "*_Ctype_int" everywhere. But now that we have
type aliases, we can declare "type _Ctype_foo = *_Ctype_int" once, and
then rewrite "C.foo" to just "_Ctype_foo".

This is important for go/types's UsesCgo mode, where go/types needs to
be able to figure out a type for each C.foo identifier using only the
information written into _cgo_gotypes.go.

Fixes #38649.

Change-Id: Ia0f8c2d82df81efb1be5bc26195ea9154c0af871
Reviewed-on: https://go-review.googlesource.com/c/go/+/230037
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-05-01 18:01:28 +00:00

27 lines
591 B
Go

// Copyright 2014 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.
package main
// Test that the struct field in anonunion.go was promoted.
var v1 T
var v2 = v1.L
// Test that P, Q, and R all point to byte.
var v3 = Issue8478{P: (*byte)(nil), Q: (**byte)(nil), R: (***byte)(nil)}
// Test that N, A and B are fully defined
var v4 = N{}
var v5 = A{}
var v6 = B{}
// Test that S is fully defined
var v7 = S{}
// Test that #define'd type is fully defined
var _ = issue38649{X: 0}
func main() {
}