BuildProvider.CodeCompilerType 属性
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
表示生成提供程序为自定义文件类型生成源代码所使用的编译器类型。
public:
virtual property System::Web::Compilation::CompilerType ^ CodeCompilerType { System::Web::Compilation::CompilerType ^ get(); };
public virtual System.Web.Compilation.CompilerType CodeCompilerType { get; }
member this.CodeCompilerType : System.Web.Compilation.CompilerType
Public Overridable ReadOnly Property CodeCompilerType As CompilerType
属性值
只读 CompilerType,表示用于生成虚拟路径的源代码的代码生成器、代码编译器和编译器设置。 基类返回 null
。
示例
下面的代码示例演示了从抽象 BuildProvider 基类继承的简单生成提供程序实现。 生成提供程序将CodeCompilerTypeGetGeneratedType替代基类的成员和GenerateCode成员。
using System;
using System.Collections;
using System.IO;
using System.Text;
using System.Web;
using System.Web.Compilation;
using System.CodeDom.Compiler;
using System.CodeDom;
using System.Security;
using System.Security.Permissions;
// Define a simple build provider implementation.
[PermissionSet(SecurityAction.Demand, Unrestricted = true)]
public class SampleBuildProvider : BuildProvider
{
// Define an internal member for the compiler type.
protected CompilerType _compilerType = null;
public SampleBuildProvider()
{
_compilerType = GetDefaultCompilerTypeForLanguage("C#");
}
// Return the internal CompilerType member
// defined in this implementation.
public override CompilerType CodeCompilerType
{
get { return _compilerType; }
}
// Define the build provider implementation of the GenerateCode method.
public override void GenerateCode(AssemblyBuilder assemBuilder)
{
// Generate a code compile unit, and add it to
// the assembly builder.
TextWriter tw = assemBuilder.CreateCodeFile(this);
if (tw != null)
{
try
{
// Generate the code compile unit from the virtual path.
CodeCompileUnit compileUnit = SampleClassGenerator.BuildCompileUnitFromPath(VirtualPath);
// Generate the source for the code compile unit,
// and write it to a file specified by the assembly builder.
CodeDomProvider provider = assemBuilder.CodeDomProvider;
provider.GenerateCodeFromCompileUnit(compileUnit, tw, null);
}
finally
{
tw.Close();
}
}
}
public override System.Type GetGeneratedType(CompilerResults results)
{
string typeName = SampleClassGenerator.TypeName;
return results.CompiledAssembly.GetType(typeName);
}
}
Imports System.Collections
Imports System.IO
Imports System.Text
Imports System.Web
Imports System.Web.Compilation
Imports System.CodeDom.Compiler
Imports System.CodeDom
Imports System.Security
Imports System.Security.Permissions
<PermissionSet(SecurityAction.Demand, Unrestricted := true)> _
Public Class SampleBuildProvider
Inherits BuildProvider
Protected _compilerType As CompilerType = Nothing
Public Sub New()
_compilerType = GetDefaultCompilerType()
End Sub
' Return the internal CompilerType member
' defined in this implementation.
Public Overrides ReadOnly Property CodeCompilerType() As CompilerType
Get
CodeCompilerType = _compilerType
End Get
End Property
' Define the build provider implementation of the GenerateCode method.
Public Overrides Sub GenerateCode(ByVal assemBuilder As AssemblyBuilder)
' Generate a code compile unit, and add it to
' the assembly builder.
Dim tw As TextWriter = assemBuilder.CreateCodeFile(Me)
If Not tw Is Nothing Then
Try
' Generate the code compile unit from the virtual path.
Dim compileUnit As CodeCompileUnit = _
SampleClassGenerator.BuildCompileUnitFromPath(VirtualPath)
' Generate the source for the code compile unit,
' and write it to a file specified by the assembly builder.
Dim provider As CodeDomProvider = assemBuilder.CodeDomProvider
provider.GenerateCodeFromCompileUnit(compileUnit, tw, Nothing)
Finally
tw.Close()
End Try
End If
End Sub
Public Overrides Function GetGeneratedType(ByVal results As CompilerResults) As System.Type
Dim typeName As String = SampleClassGenerator.TypeName
Return results.CompiledAssembly.GetType(typeName)
End Function
End Class
注解
CodeCompilerType使用属性提供用于编译实现的源代码的设置BuildProvider。 该 CodeCompilerType 属性是 null
,如果生成提供程序不需要特定代码语言来生成和编译源代码。
若要在生成提供程序实现中设置对象的值 CompilerType ,请使用 GetDefaultCompilerType 或 GetDefaultCompilerTypeForLanguage 方法。
该 CodeDomProviderType 属性指定 CodeDomProvider 用于生成和编译生成提供程序的源代码的实现。 该 CompilerParameters 属性定义用于将源代码编译为程序集的设置。