CompilerType Klasse

Definition

public ref class CompilerType sealed

public sealed class CompilerType

type CompilerType = class

Public NotInheritable Class CompilerType

Vererbung

Object

CompilerType

Beispiele

Das folgende Codebeispiel veranschaulicht eine einfache Buildanbieterimplementierung, die von der abstrakten BuildProvider Basisklasse erbt. Der Buildanbieter überschreibt die CodeCompilerTypeMember , GetGeneratedTypeund GenerateCode der Basisklasse.

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()
    {
        // Set the compiler to use Visual Basic.
        _compilerType = GetDefaultCompilerTypeForLanguage("C#");
    }

    // Return the internal CompilerType member 
    // defined in this implementation.
    public override CompilerType CodeCompilerType
    {
        get { return _compilerType; }
    }

    // Define a method that returns details for the 
    // code compiler for this build provider.
    public string GetCompilerTypeDetails()
    {
        StringBuilder details = new StringBuilder("");

        if (_compilerType != null)
        {
            // Format a string that contains the code compiler
            // implementation, and various compiler details.

            details.AppendFormat("CodeDomProvider type: {0}; \n",
                _compilerType.CodeDomProviderType.ToString());
            details.AppendFormat("Compiler debug build = {0}; \n",
                _compilerType.CompilerParameters.IncludeDebugInformation.ToString());
            details.AppendFormat("Compiler warning level = {0}; \n",
                _compilerType.CompilerParameters.WarningLevel.ToString());

            if (_compilerType.CompilerParameters.CompilerOptions != null)
            {
                details.AppendFormat("Compiler options: {0}; \n",
                    _compilerType.CompilerParameters.CompilerOptions.ToString());
            }
        }
        return details.ToString();
    }

    // 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.CreateGenerator().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 a method that returns details for the 
    ' code compiler for this build provider.
    Public Function GetCompilerTypeDetails() As String
        Dim details As StringBuilder = New StringBuilder("")

        If Not _compilerType Is Nothing Then
            ' Format a string that contains the code compiler
            ' implementation, and various compiler details.

            details.AppendFormat("CodeDomProvider type: {0}; ", _
                _compilerType.CodeDomProviderType.ToString())
            details.AppendFormat("Compiler debug build = {0}; ", _
                _compilerType.CompilerParameters.IncludeDebugInformation.ToString())
            details.AppendFormat("Compiler warning level = {0}; ", _
                _compilerType.CompilerParameters.WarningLevel.ToString())

            If Not _compilerType.CompilerParameters.CompilerOptions Is Nothing Then
                details.AppendFormat("Compiler options: {0}; ", _
                    _compilerType.CompilerParameters.CompilerOptions.ToString())
            End If
        End If
        Return details.ToString()
    End Function

    ' 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.CreateGenerator().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

Hinweise

Verwenden Sie die CodeCompilerType -Eigenschaft einer BuildProvider -Implementierung, um die Einstellungen zu untersuchen, die zum Generieren und Kompilieren von Quellcode aus einem virtuellen Pfad für diesen Buildanbieter verwendet werden.

Die ASP.NET Buildumgebung verwendet BuildProvider -Objekte, um Quellcode für benutzerdefinierte Dateitypen innerhalb des Projekts zu generieren. Von BuildProvider abgeleitete Klassen stellen Builddetails für Quelldateien, Webseiten, Ressourcen und andere benutzerdefinierte Elemente bereit. Wenn der Buildanbieter eine bestimmte Programmiersprache erfordert, überschreibt er die CodeCompilerType -Eigenschaft und ruft die GetDefaultCompilerType -Methode auf, um ein CompilerType Objekt für die unterstützte Programmiersprache zurückzugeben.

Um das CompilerType Objekt innerhalb einer Buildanbieterimplementierung festzulegen, verwenden Sie die GetDefaultCompilerType -Methode oder die GetDefaultCompilerTypeForLanguage -Methode.

Die CodeDomProviderType -Eigenschaft gibt die Implementierung an, die CodeDomProvider zum Generieren und Kompilieren von Quellcode für einen Buildanbieter verwendet wird. Die CompilerParameters -Eigenschaft definiert die Einstellungen, die zum Kompilieren des Quellcodes in eine Assembly verwendet werden.

Eigenschaften

Methoden

Gilt für:

Weitere Informationen

• CompilerParameters
• CodeDomProvider
• BuildProvider