mirror of
https://github.com/golang/go
synced 2024-11-24 22:47:58 -07:00
d5b9dc1317
Pass information about original end position for c function arguments processed in pointer checking generated code. Fixes #42580 Change-Id: Ic8a578168362f0ca6055064dbbea092ad37477a6 Reviewed-on: https://go-review.googlesource.com/c/go/+/269760 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Trust: Dmitri Shuralyov <dmitshur@golang.org>
45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
// Copyright 2021 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 42580: cmd/cgo: shifting identifier position in ast
|
|
|
|
package cgotest
|
|
|
|
// typedef int (*intFunc) ();
|
|
//
|
|
// char* strarg = "";
|
|
//
|
|
// int func_with_char(char* arg, void* dummy)
|
|
// {return 5;}
|
|
//
|
|
// int* get_arr(char* arg, void* dummy)
|
|
// {return NULL;}
|
|
import "C"
|
|
import "unsafe"
|
|
|
|
// Test variables
|
|
var (
|
|
checkedPointer = []byte{1}
|
|
doublePointerChecked = []byte{1}
|
|
singleInnerPointerChecked = []byte{1}
|
|
)
|
|
|
|
// This test checks the positions of variable identifiers.
|
|
// Changing the positions of the test variables idents after this point will break the test.
|
|
|
|
func TestSingleArgumentCast() C.int {
|
|
retcode := C.func_with_char((*C.char)(unsafe.Pointer(&checkedPointer[0])), unsafe.Pointer(C.strarg))
|
|
return retcode
|
|
}
|
|
|
|
func TestSingleArgumentCastRecFuncAsSimpleArg() C.int {
|
|
retcode := C.func_with_char((*C.char)(unsafe.Pointer(C.get_arr((*C.char)(unsafe.Pointer(&singleInnerPointerChecked[0])), unsafe.Pointer(C.strarg)))), nil)
|
|
return retcode
|
|
}
|
|
|
|
func TestSingleArgumentCastRecFunc() C.int {
|
|
retcode := C.func_with_char((*C.char)(unsafe.Pointer(C.get_arr((*C.char)(unsafe.Pointer(&doublePointerChecked[0])), unsafe.Pointer(C.strarg)))), unsafe.Pointer(C.strarg))
|
|
return retcode
|
|
}
|