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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.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Issue 42580: cmd/cgo: shifting identifier position in ast
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package cgotest
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// typedef int (*intFunc) ();
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//
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// char* strarg = "";
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//
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// int func_with_char(char* arg, void* dummy)
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// {return 5;}
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//
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// int* get_arr(char* arg, void* dummy)
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// {return NULL;}
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import "C"
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import "unsafe"
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// Test variables
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var (
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checkedPointer = []byte{1}
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doublePointerChecked = []byte{1}
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singleInnerPointerChecked = []byte{1}
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)
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// This test checks the positions of variable identifiers.
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// Changing the positions of the test variables idents after this point will break the test.
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func TestSingleArgumentCast() C.int {
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retcode := C.func_with_char((*C.char)(unsafe.Pointer(&checkedPointer[0])), unsafe.Pointer(C.strarg))
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return retcode
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}
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func TestSingleArgumentCastRecFuncAsSimpleArg() C.int {
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retcode := C.func_with_char((*C.char)(unsafe.Pointer(C.get_arr((*C.char)(unsafe.Pointer(&singleInnerPointerChecked[0])), unsafe.Pointer(C.strarg)))), nil)
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return retcode
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}
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func TestSingleArgumentCastRecFunc() C.int {
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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))
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return retcode
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}
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