ModuleBuilder.DefineManifestResource 方法

参考

定义

命名空间:: System.Reflection.Emit

程序集:: mscorlib.dll

重要

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定义表示要在动态程序集中嵌入的清单资源的二进制大对象 (BLOB)。

public:
 void DefineManifestResource(System::String ^ name, System::IO::Stream ^ stream, System::Reflection::ResourceAttributes attribute);

public void DefineManifestResource (string name, System.IO.Stream stream, System.Reflection.ResourceAttributes attribute);

member this.DefineManifestResource : string * System.IO.Stream * System.Reflection.ResourceAttributes -> unit

Public Sub DefineManifestResource (name As String, stream As Stream, attribute As ResourceAttributes)

参数

name: String

资源的区分大小写的名称。

stream: Stream

包含资源字节的流。

attribute: ResourceAttributes

一个枚举值，用于指定资源是公共资源还是私有资源。

例外

ArgumentNullException

name 为 null。

或

stream 为 null。

ArgumentException

name 是一个长度为零的字符串。

InvalidOperationException

包含当前模块的动态程序集是瞬态的；也就是说，调用 DefineDynamicModule(String, String) 时没有指定任何文件名。

示例

以下示例生成并保存名为 EmittedManifestResourceAssembly.exe的动态程序集，其中包含嵌入的非托管资源。该示例创建由一个模块组成的程序集，并打开一个内存流以包含非托管资源。然后，代码调用 DefineManifestResource 方法来定义资源。

注意

可以为资源使用任何类型的流;例如，可以从文件读取非托管二进制数据。

该示例使用 Main 方法定义动态模块中的类型，并为方法正文生成 MSIL。生成方法的 Main 正文并创建类型后，代码示例会将五个字节写入与清单资源关联的流。保存程序集后，资源将追加到其中。

运行示例后，可以运行发出的程序集。发出程序集的 Main 方法中的代码读取嵌入的清单资源，并将字节值打印到控制台。可以使用 Ildasm.exe (IL 反汇编程序) 查看程序集清单中的信息。

using System;
using System.Reflection;
using System.Reflection.Emit;
using System.IO;

public class Example
{
    public static void Main()
    {
        // Define a dynamic assembly with one module. The module
        // name and the assembly name are the same.
        AssemblyName asmName =
            new AssemblyName("EmittedManifestResourceAssembly");
        AssemblyBuilder asmBuilder =
            AppDomain.CurrentDomain.DefineDynamicAssembly(
                asmName,
                AssemblyBuilderAccess.RunAndSave
            );
        ModuleBuilder modBuilder = asmBuilder.DefineDynamicModule(
            asmName.Name,
            asmName.Name + ".exe"
        );

        // Create a memory stream for the unmanaged resource data.
        // You can use any stream; for example, you might read the
        // unmanaged resource data from a binary file. It is not
        // necessary to put any data into the stream right now.
        MemoryStream ms = new MemoryStream(1024);

        // Define a public manifest resource with the name
        // "MyBinaryData, and associate it with the memory stream.
        modBuilder.DefineManifestResource(
            "MyBinaryData",
            ms,
            ResourceAttributes.Public
        );

        // Create a type with a public static Main method that will
        // be the entry point for the emitted assembly.
        //
        // The purpose of the Main method in this example is to read
        // the manifest resource and display it, byte by byte.
        //
        TypeBuilder tb = modBuilder.DefineType("Example");
        MethodBuilder main = tb.DefineMethod("Main",
            MethodAttributes.Public | MethodAttributes.Static
        );

        // The Main method uses the Assembly type and the Stream
        // type.
        Type asm = typeof(Assembly);
        Type str = typeof(Stream);

        // Get MethodInfo objects for the methods called by
        // Main.
        MethodInfo getEx = asm.GetMethod("GetExecutingAssembly");
        // Use the overload of GetManifestResourceStream that
        // takes one argument, a string.
        MethodInfo getMRS = asm.GetMethod(
            "GetManifestResourceStream",
            new Type[] {typeof(string)}
        );
        MethodInfo rByte = str.GetMethod("ReadByte");
        // Use the overload of WriteLine that writes an Int32.
        MethodInfo write = typeof(Console).GetMethod(
            "WriteLine",
            new Type[] {typeof(int)}
        );

        ILGenerator ilg = main.GetILGenerator();

        // Main uses two local variables: the instance of the
        // stream returned by GetManifestResourceStream, and
        // the value returned by ReadByte. The load and store
        // instructions refer to these locals by position
        // (0 and 1).
        LocalBuilder s = ilg.DeclareLocal(str);
        LocalBuilder b = ilg.DeclareLocal(typeof(int));

        // Call the static Assembly.GetExecutingAssembly() method,
        // which leaves the assembly instance on the stack. Push the
        // string name of the resource on the stack, and call the
        // GetManifestResourceStream(string) method of the assembly
        // instance.
        ilg.EmitCall(OpCodes.Call, getEx, null);
        ilg.Emit(OpCodes.Ldstr, "MyBinaryData");
        ilg.EmitCall(OpCodes.Callvirt, getMRS, null);

        // Store the Stream instance.
        ilg.Emit(OpCodes.Stloc_0);

        // Create a label, and associate it with this point
        // in the emitted code.
        Label loop = ilg.DefineLabel();
        ilg.MarkLabel(loop);

        // Load the Stream instance onto the stack, and call
        // its ReadByte method. The return value is on the
        // stack now; store it in location 1 (variable b).
        ilg.Emit(OpCodes.Ldloc_0);
        ilg.EmitCall(OpCodes.Callvirt, rByte, null);
        ilg.Emit(OpCodes.Stloc_1);

        // Load the value on the stack again, and call the
        // WriteLine method to print it.
        ilg.Emit(OpCodes.Ldloc_1);
        ilg.EmitCall(OpCodes.Call, write, null);

        // Load the value one more time; load -1 (minus one)
        // and compare the two values. If return value from
        // ReadByte was not -1, branch to the label 'loop'.
        ilg.Emit(OpCodes.Ldloc_1);
        ilg.Emit(OpCodes.Ldc_I4_M1);
        ilg.Emit(OpCodes.Ceq);
        ilg.Emit(OpCodes.Brfalse_S, loop);

        // When all the bytes in the stream have been read,
        // return. This is the end of Main.
        ilg.Emit(OpCodes.Ret);

        // Create the type "Example" in the dynamic assembly.
        tb.CreateType();

        // Because the manifest resource was added as an open
        // stream, the data can be written at any time, right up
        // until the assembly is saved. In this case, the data
        // consists of five bytes.
        ms.Write(new byte[] { 105, 36, 74, 97, 109 }, 0, 5);
        ms.SetLength(5);

        // Set the Main method as the entry point for the
        // assembly, and save the assembly. The manifest resource
        // is read from the memory stream, and appended to the
        // end of the assembly. You can open the assembly with
        // Ildasm and view the resource header for "MyBinaryData".
        asmBuilder.SetEntryPoint(main);
    asmBuilder.Save(asmName.Name + ".exe");

        Console.WriteLine("Now run EmittedManifestResourceAssembly.exe");
    }
}

/* This code example doesn't produce any output. The assembly it
   emits, EmittedManifestResourceAssembly.exe, produces the following
   output:

105
36
74
97
109
-1

 */

Imports System.Reflection
Imports System.Reflection.Emit
Imports System.IO

Public Class Example
    
    Public Shared Sub Main() 

        ' Define a dynamic assembly with one module. The module
        ' name and the assembly name are the same.
        Dim asmName As New AssemblyName("EmittedManifestResourceAssembly")
        Dim asmBuilder As AssemblyBuilder = _
            AppDomain.CurrentDomain.DefineDynamicAssembly( _
                asmName, _
                AssemblyBuilderAccess.RunAndSave _
            )
        Dim modBuilder As ModuleBuilder = _
            asmBuilder.DefineDynamicModule( _
                asmName.Name, _
                asmName.Name + ".exe" _
            )
        
        ' Create a memory stream for the unmanaged resource data.
        ' You can use any stream; for example, you might read the
        ' unmanaged resource data from a binary file. It is not
        ' necessary to put any data into the stream right now.
        Dim ms As New MemoryStream(1024)
        
        ' Define a public manifest resource with the name 
        ' "MyBinaryData, and associate it with the memory stream.
        modBuilder.DefineManifestResource( _
            "MyBinaryData", _
            ms, _
            ResourceAttributes.Public _
        )
        
        ' Create a type with a public static Main method that will
        ' be the entry point for the emitted assembly. 
        '
        ' The purpose of the Main method in this example is to read 
        ' the manifest resource and display it, byte by byte.
        '
        Dim tb As TypeBuilder = modBuilder.DefineType("Example")
        Dim main As MethodBuilder = tb.DefineMethod( _
            "Main", _
            MethodAttributes.Public Or MethodAttributes.Static _
        )
        
        ' The Main method uses the Assembly type and the Stream
        ' type. 
        Dim asm As Type = GetType([Assembly])
        Dim str As Type = GetType(Stream)
        
        ' Get MethodInfo objects for the methods called by 
        ' Main.
        Dim getEx As MethodInfo = asm.GetMethod("GetExecutingAssembly")
        ' Use the overload of GetManifestResourceStream that 
        ' takes one argument, a string.
        Dim getMRS As MethodInfo = asm.GetMethod( _
            "GetManifestResourceStream", _
            New Type() {GetType(String)} _
        )
        Dim rByte As MethodInfo = str.GetMethod("ReadByte")
        ' Use the overload of WriteLine that writes an Int32.
        Dim write As MethodInfo = GetType(Console).GetMethod( _
            "WriteLine", _
            New Type() {GetType(Integer)} _
        )
        
        Dim ilg As ILGenerator = main.GetILGenerator()
        
        ' Main uses two local variables: the instance of the
        ' stream returned by GetManifestResourceStream, and 
        ' the value returned by ReadByte. The load and store 
        ' instructions refer to these locals by position  
        ' (0 and 1).
        Dim s As LocalBuilder = ilg.DeclareLocal(str)
        Dim b As LocalBuilder = ilg.DeclareLocal(GetType(Integer))
        
        ' Call the static Assembly.GetExecutingAssembly() method,
        ' which leaves the assembly instance on the stack. Push the
        ' string name of the resource on the stack, and call the
        ' GetManifestResourceStream(string) method of the assembly
        ' instance.
        ilg.EmitCall(OpCodes.Call, getEx, Nothing)
        ilg.Emit(OpCodes.Ldstr, "MyBinaryData")
        ilg.EmitCall(OpCodes.Callvirt, getMRS, Nothing)
        
        ' Store the Stream instance.
        ilg.Emit(OpCodes.Stloc_0)
        
        ' Create a label, and associate it with this point
        ' in the emitted code.
        Dim theLoop As Label = ilg.DefineLabel()
        ilg.MarkLabel(theLoop)
        
        ' Load the Stream instance onto the stack, and call
        ' its ReadByte method. The return value is on the
        ' stack now; store it in location 1 (variable b).
        ilg.Emit(OpCodes.Ldloc_0)
        ilg.EmitCall(OpCodes.Callvirt, rByte, Nothing)
        ilg.Emit(OpCodes.Stloc_1)
        
        ' Load the value on the stack again, and call the
        ' WriteLine method to print it.
        ilg.Emit(OpCodes.Ldloc_1)
        ilg.EmitCall(OpCodes.Call, write, Nothing)
        
        ' Load the value one more time; load -1 (minus one)  
        ' and compare the two values. If return value from
        ' ReadByte was not -1, branch to the label 'loop'.
        ilg.Emit(OpCodes.Ldloc_1)
        ilg.Emit(OpCodes.Ldc_I4_M1)
        ilg.Emit(OpCodes.Ceq)
        ilg.Emit(OpCodes.Brfalse_S, theLoop)
        
        ' When all the bytes in the stream have been read,
        ' return. This is the end of Main.
        ilg.Emit(OpCodes.Ret)
        
        ' Create the type "Example" in the dynamic assembly.
        tb.CreateType()
        
        ' Because the manifest resource was added as an open
        ' stream, the data can be written at any time, right up
        ' until the assembly is saved. In this case, the data
        ' consists of five bytes.
        ms.Write(New Byte() {105, 36, 74, 97, 109}, 0, 5)
        ms.SetLength(5)
        
        ' Set the Main method as the entry point for the 
        ' assembly, and save the assembly. The manifest resource
        ' is read from the memory stream, and appended to the
        ' end of the assembly. You can open the assembly with
        ' Ildasm and view the resource header for "MyBinaryData".
        asmBuilder.SetEntryPoint(main)
        asmBuilder.Save(asmName.Name + ".exe")
        
        Console.WriteLine("Now run EmittedManifestResourceAssembly.exe")
    
    End Sub 
End Class 

' This code example doesn't produce any output. The assembly it
' emits, EmittedManifestResourceAssembly.exe, produces the following
' output:
'
'105
'36
'74
'97
'109
'-1
'

注解

程序集清单中记录的资源可以是托管资源或清单资源 BLOB，其中每个资源都可以通过链接或嵌入包含在程序集中。动态程序集支持这四种方案。

此方法允许将清单资源 BLOB 嵌入动态程序集。
若要将托管资源嵌入到动态程序集的清单模块或附属模块中，请使用 ModuleBuilder.DefineResource 方法获取资源编写器，并使用 ResourceWriter.AddResource 方法添加资源。
若要将托管资源链接到动态程序集，请使用 AssemblyBuilder.DefineResource 方法获取资源编写器，并使用 ResourceWriter.AddResource 方法添加链接资源。
若要将清单资源 BLOB 链接到动态程序集，请使用 AssemblyBuilder.AddResourceFile 方法添加链接的资源。

此外，可以使用方法或 ModuleBuilder.DefineUnmanagedResource 方法将单个 Win32 资源附加到程序集AssemblyBuilder.DefineUnmanagedResource。此资源不会显示在程序集清单中。

适用于

ModuleBuilder.DefineManifestResource 方法

定义

参数

例外

示例

注解

适用于

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