用于VBA的GHC编译DLL

时间:2018-10-10 06:33:42

标签: excel vba haskell dll ghc

这是此问题的替代方法:Export Haskell lib as DLL

我正在使用GHC版本8.6.1 [最新],并遵循the documentation来从haskell库中编译DLL,以便随后在VBA中使用。

我的文件如下:

Adder.hs:

{-# LANGUAGE ForeignFunctionInterface #-}
module Adder where

adder :: Int -> Int -> IO Int
adder x y = return (x+y)

foreign export ccall adder :: Int -> Int -> IO Int

StartEnd.c:

#include <Rts.h>

void HsStart() {
    int argc = 1;
    char* argv[] = {"ghcDll", NULL};
    char** args = argv;
    hs_init(&argc, &args);
}

void HsEnd() {
    hs_exit();
}

我将文件夹ghc-8.6.1\lib\include复制到了构建位置,并将两个文件复制到了该文件夹中(因为我无法弄清楚如何正确传递-I [PATH]参数)。

运行这些编译步骤,我得到:

ghc -c Adder.hs
    --> no error
ghc -c StartEnd.c
    --> no error
ghc -shared -no-hs-main -o Adder.dll Adder.o Adder_stub.h StartEnd.o
    --> no error

和文件

Adder.dll
Adder.dll.a
Adder.hi
Adder.o
Adder_stub.h
startEnd.o

我尝试使用文档ghc -shared -o Adder.dll Adder.o Adder_stub.h StartEnd.o中的第三个编译命令,并使用参数-no-hs-main来确定。

我的VBA脚本如下:

Private Declare Function Adder Lib "PATH\TO\Adder.dll" Alias "adder" _
        (ByVal x As Long, ByVal y As Long) As Long

Private Declare Sub HsStart Lib "PATH\TO\Adder.dll" ()
Private Declare Sub HsEnd Lib "PATH\TO\Adder.dll" ()

Public Sub test()
    HsStart
    MsgBox "12 + 5 = " & Adder(12, 5)
    HsEnd
End Sub

但是,每当我尝试运行Sub测试时,都会收到错误消息:

Run-Time error '48'
File not found:
PATH\TO\Adder.dll

您能告诉我我在哪里犯了错误以及如何解决吗?

如果有帮助,dumpbin /EXPORTS Adder.dll的输出是这样的:

Microsoft (R) COFF/PE Dumper Version 14.00.24234.1
Copyright (C) Microsoft Corporation.  All rights reserved.


Dump of file Adder.dll

File Type: DLL

  Section contains the following exports for Adder.dll

    00000000 characteristics
    5BBD9533 time date stamp Wed Oct 10 07:59:15 2018
        0.00 version
           1 ordinal base
       29737 number of functions
       29737 number of names

    ordinal hint RVA      name

          1    0 004E0F18 ALLOC_BH_adm
          ...
          75   4A 00001681 HsEnd
          76   4B 00001640 HsStart
          ...
          472  1D7 00001540 adder
          ...

我的路径:

C:\Users\scfa\AppData\Local\Programs\MiKTeX 2.9\miktex\bin\x64\;C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin;C:\Users\scfa\Documents\myProgramms\dev_msys2\mingw64\bin;C:\Users\scfa\Documents\myProgramms\dev_msys2\mingw32\bin;C:\Users\scfa\Documents\myProgramms\ghc-8.6.1\bin;C:\Users\scfa\Documents\myProgramms\ghc-8.6.1\mingw\bin

0 个答案:

没有答案