无法加载文件或程序集.签名具有错误的元素类型(HRESULT:0x80131247)

Question

我正在尝试为CIL(Microsoft IL(制作一个编译器。在写完IL文件后，我使用ilasm(CIL汇编程序(生成相应的.exe文件。在我尝试添加泛型之后，我在尝试运行可执行文件时遇到以下错误：

Unhandled Exception: System.IO.FileLoadException: Could not load file or assembly 'fungjprg, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Signature has bad element type. (Exception from HRESULT: 0x80131247) ---> System.Runtime.InteropServices.COMException: Signature has bad element type. (Exception from HRESULT: 0x80131247)
--- End of inner exception stack trace --- 

我真的不明白这是从哪里来的，因为在试图编译泛型类型之前，一切都可以完美地工作。此外，由于我认为我的IL代码很糟糕，我用C#编写了一个简单的通用程序，并使用它生成的IL(使用ILDASM(，并试图运行它，但我得到了完全相同的错误。

C#代码：

class Program
{
static void Main(string[] args)
{
System.Console.WriteLine(new A<int>(3).f());
}
}
class A<X>
{
X val;
public A(X val)
{
this.val = val;
}
public X f()
{
return this.val;
}
}

我的CIL文件：

.assembly extern System.Runtime
{
.publickeytoken = (B0 3F 5F 7F 11 D5 0A 3A)
.ver 4:0:0:0
}
.assembly extern System.Console
{
.publickeytoken = (B0 3F 5F 7F 11 D5 0A 3A)
.ver 4:0:0:0
}
.assembly fungjprg 
{
.hash algorithm 0x00008004 // I tried to add/remove this, same result...
.ver 1:0:0:0 // I tried to add/remove this, same result...
}
.class private auto ansi beforefieldinit fungjprg.A`1<X>
extends [System.Runtime]System.Object
{
.method public hidebysig specialname rtspecialname 
instance void  .ctor(!X val) cil managed
{
// Code size       16 (0x10)
.maxstack  8
IL_0000:  ldarg.0
IL_0001:  call       instance void [System.Runtime]System.Object::.ctor()
IL_0006:  nop
IL_0007:  nop
IL_0008:  ldarg.0
IL_0009:  ldarg.1
IL_000a:  stfld      !0 class fungjprg.A`1<!X>::val
IL_000f:  ret
}
.method public hidebysig instance !X  f() cil managed
{
// Code size       12 (0xc)
.maxstack  1
.locals init (!X V_0)
IL_0000:  nop
IL_0001:  ldarg.0
IL_0002:  ldfld      !0 class fungjprg.A`1<!X>::val
IL_0007:  stloc.0
IL_0008:  br.s       IL_000a
IL_000a:  ldloc.0
IL_000b:  ret
} 
}
.field private !X val
.method private hidebysig static void  Main(string[] args) cil managed
{
.entrypoint
// Code size       19 (0x13)
.maxstack  8
IL_0000:  nop
IL_0001:  ldc.i4.3
IL_0002:  newobj     instance void class fungjprg.A`1<int32>::.ctor(!0)
IL_0007:  call       instance !0 class fungjprg.A`1<int32>::f()
IL_000c:  call       void [System.Console]System.Console::WriteLine(int32)
IL_0011:  nop
IL_0012:  ret
}

ILASM输出：

Microsoft (R) .NET Framework IL Assembler.  Version 4.8.3752.0
Copyright (c) Microsoft Corporation.  All rights reserved.
Assembling 'compiledprogram.fungj'  to EXE --> 'compiledprogram.exe'
Source file is ANSI
Assembled method fungjprg.A`1::.ctor
Assembled method fungjprg.A`1::f
compiledprogram.fungj(54) : warning : Non-static global field, made static
Assembled global method Main
Creating PE file
Emitting classes:
Class 1:        fungjprg.A`1
Emitting fields and methods:
Global  Fields: 1;      Methods: 1;
Class 1 Methods: 2;
Emitting events and properties:
Global
Class 1
Writing PE file
Operation completed successfully

我试图用强名称密钥对IL文件进行签名，但错误仍然存在(唯一的区别是PublicKeyToken不再为空(

Answer 1

根据您的CIL文件，.field private !X val不是类a的一部分。这很奇怪，因为根据C#代码，它看起来是类a的组成部分。

尝试将.field private !X val移动到类范围中，类似于

.class private auto ansi beforefieldinit fungjprg.A`1<X>
extends [System.Runtime]System.Object
{
.field private !X val
.method public hidebysig specialname rtspecialname 
instance void  .ctor(!X val) cil managed
{
// method code..
}
}

编辑：我用修复程序运行了你的CIL文件，它对我有效