CompilerInfo Classe

Definição

public ref class CompilerInfo sealed

public sealed class CompilerInfo

type CompilerInfo = class

Public NotInheritable Class CompilerInfo

Herança

Object

CompilerInfo

Exemplos

O exemplo de código a seguir exibe as configurações do provedor de idiomas. Argumentos de linha de comando são usados para especificar um idioma, uma extensão de nome de arquivo ou um tipo de provedor. Para a entrada fornecida, o exemplo determina o provedor de idiomas correspondente e exibe as configurações do compilador de idiomas configurados.

// Command-line argument examples:
//      - Displays Visual Basic, C#, and JScript compiler settings.
//   <exe_name> Language CSharp
//      - Displays the compiler settings for C#.
//   <exe_name> All
//      - Displays settings for all configured compilers.
//   <exe_name> Config Pascal
//      - Displays settings for configured Pascal language provider,
//        if one exists.
//   <exe_name> Extension .vb
//      - Displays settings for the compiler associated with the .vb
//        file extension.

using System;
using System.Globalization;
using System.CodeDom;
using System.CodeDom.Compiler;
using Microsoft.CSharp;
using Microsoft.VisualBasic;

namespace CodeDomCompilerInfoSample
{
    class CompilerInfoSample
    {
        [STAThread]
        static void Main(string[] args)
        {
            String queryCommand = "";
            String queryArg = "";
            int iNumArguments = args.Length;

            // Get input command-line arguments.
            if (iNumArguments > 0)
            {
                queryCommand = args[0].ToUpper(CultureInfo.InvariantCulture);

                if (iNumArguments > 1)
                {
                    queryArg = args[1];
                }
            }

            // Determine which method to call.

            Console.WriteLine();
            switch(queryCommand)
            {
                case ("LANGUAGE"):
                    // Display compiler information for input language.
                    DisplayCompilerInfoForLanguage(queryArg);
                    break;

                case ("EXTENSION"):
                    // Display compiler information for input file extension.
                    DisplayCompilerInfoUsingExtension(queryArg);
                    break;

                case ("CONFIG"):
                    // Display settings for the configured language provider.
                    DisplayCompilerInfoForConfigLanguage(queryArg);
                    break;

                case ("ALL"):
                    // Display compiler information for all configured
                    // language providers.
                    DisplayAllCompilerInfo();
                    break;

                default:
                    // There was no command-line argument, or the
                    // command-line argument was not recognized.
                    // Display the C#, Visual Basic and JScript
                    // compiler information.

                    DisplayCSharpCompilerInfo();
                    DisplayVBCompilerInfo();
                    DisplayJScriptCompilerInfo();
                    break;
            }
        }

        static void DisplayCSharpCompilerInfo()
        {
            // Get the provider for Microsoft.CSharp
            CodeDomProvider provider = CodeDomProvider.CreateProvider("CSharp");

            // Display the C# language provider information.
            Console.WriteLine("CSharp provider is {0}",
                provider.ToString());
            Console.WriteLine("  Provider hash code:     {0}",
                provider.GetHashCode().ToString());
            Console.WriteLine("  Default file extension: {0}",
                provider.FileExtension);

            Console.WriteLine();
        }

        static void DisplayVBCompilerInfo()
        {
            // Get the provider for Microsoft.VisualBasic
            CodeDomProvider provider = CodeDomProvider.CreateProvider("VisualBasic");

            // Display the Visual Basic language provider information.
            Console.WriteLine("Visual Basic provider is {0}",
                provider.ToString());
            Console.WriteLine("  Provider hash code:     {0}",
                provider.GetHashCode().ToString());
            Console.WriteLine("  Default file extension: {0}",
                provider.FileExtension);

            Console.WriteLine();
        }

        static void DisplayJScriptCompilerInfo()
        {
            // Get the provider for JScript.
            CodeDomProvider provider;

            try
            {
                provider = CodeDomProvider.CreateProvider("js");

                // Display the JScript language provider information.
                Console.WriteLine("JScript language provider is {0}",
                    provider.ToString());
                Console.WriteLine("  Provider hash code:     {0}",
                    provider.GetHashCode().ToString());
                Console.WriteLine("  Default file extension: {0}",
                    provider.FileExtension);
                Console.WriteLine();
            }
            catch (System.Configuration.ConfigurationException)
            {
                // The JScript language provider was not found.
                Console.WriteLine("There is no configured JScript language provider.");
            }
        }

        static void DisplayCompilerInfoUsingExtension(string fileExtension)
        {
            if (fileExtension[0] != '.')
            {
                fileExtension = "." + fileExtension;
            }

            // Get the language associated with the file extension.
            if (CodeDomProvider.IsDefinedExtension(fileExtension))
            {
                CodeDomProvider provider;
                String language = CodeDomProvider.GetLanguageFromExtension(fileExtension);

                Console.WriteLine("The language \"{0}\" is associated with file extension \"{1}\"",
                    language, fileExtension);
                Console.WriteLine();

                // Next, check for a corresponding language provider.

                if (CodeDomProvider.IsDefinedLanguage(language))
                {
                    provider = CodeDomProvider.CreateProvider(language);

                    // Display information about this language provider.

                    Console.WriteLine("Language provider:  {0}",
                        provider.ToString());
                    Console.WriteLine();

                    // Get the compiler settings for this language.

                    CompilerInfo langCompilerInfo = CodeDomProvider.GetCompilerInfo(language);
                    CompilerParameters langCompilerConfig = langCompilerInfo.CreateDefaultCompilerParameters();

                    Console.WriteLine("  Compiler options:        {0}",
                        langCompilerConfig.CompilerOptions);
                    Console.WriteLine("  Compiler warning level:  {0}",
                        langCompilerConfig.WarningLevel);
                }
            }
            else
            {
                // Tell the user that the language provider was not found.
                Console.WriteLine("There is no language provider associated with input file extension \"{0}\".",
                    fileExtension);
            }
        }

        static void DisplayCompilerInfoForLanguage(string language)
        {
            CodeDomProvider provider;

            // Check for a provider corresponding to the input language.
            if (CodeDomProvider.IsDefinedLanguage(language))
            {
                provider = CodeDomProvider.CreateProvider(language);

                // Display information about this language provider.

                Console.WriteLine("Language provider:  {0}",
                    provider.ToString());
                Console.WriteLine();
                Console.WriteLine("  Default file extension:  {0}",
                    provider.FileExtension);
                Console.WriteLine();

                // Get the compiler settings for this language.

                CompilerInfo langCompilerInfo = CodeDomProvider.GetCompilerInfo(language);
                CompilerParameters langCompilerConfig = langCompilerInfo.CreateDefaultCompilerParameters();

                Console.WriteLine("  Compiler options:        {0}",
                    langCompilerConfig.CompilerOptions);
                Console.WriteLine("  Compiler warning level:  {0}",
                    langCompilerConfig.WarningLevel);
            }
            else
            {
                // Tell the user that the language provider was not found.
                Console.WriteLine("There is no provider configured for input language \"{0}\".",
                    language);
            }
        }

        static void DisplayCompilerInfoForConfigLanguage(string configLanguage)
        {
            CompilerInfo info = CodeDomProvider.GetCompilerInfo(configLanguage);

            // Check whether there is a provider configured for this language.
            if (info.IsCodeDomProviderTypeValid)
            {
                // Get a provider instance using the configured type information.
                CodeDomProvider provider;
                provider = (CodeDomProvider)Activator.CreateInstance(info.CodeDomProviderType);

                // Display information about this language provider.
                Console.WriteLine("Language provider:  {0}",
                    provider.ToString());
                Console.WriteLine();
                Console.WriteLine("  Default file extension:  {0}",
                    provider.FileExtension);
                Console.WriteLine();

                // Get the compiler settings for this language.

                CompilerParameters langCompilerConfig = info.CreateDefaultCompilerParameters();

                Console.WriteLine("  Compiler options:        {0}",
                    langCompilerConfig.CompilerOptions);
                Console.WriteLine("  Compiler warning level:  {0}",
                    langCompilerConfig.WarningLevel);
            }
            else
            {
                // Tell the user that the language provider was not found.
                Console.WriteLine("There is no provider configured for input language \"{0}\".",
                    configLanguage);
            }
        }

        static void DisplayAllCompilerInfo()
        {
            CompilerInfo [] allCompilerInfo = CodeDomProvider.GetAllCompilerInfo();
            foreach (CompilerInfo info in allCompilerInfo)
            {
                String defaultLanguage;
                String defaultExtension;

                CodeDomProvider provider = info.CreateProvider();

                // Display information about this configured provider.

                Console.WriteLine("Language provider:  {0}",
                    provider.ToString());
                Console.WriteLine();

                Console.WriteLine("  Supported file extension(s):");
                foreach(String extension in info.GetExtensions())
                {
                    Console.WriteLine("    {0}", extension);
                }

                defaultExtension = provider.FileExtension;
                if (defaultExtension[0] != '.')
                {
                    defaultExtension = "." + defaultExtension;
                }
                Console.WriteLine("  Default file extension:  {0}",
                    defaultExtension);
                Console.WriteLine();

                Console.WriteLine("  Supported language(s):");
                foreach(String language in info.GetLanguages())
                {
                    Console.WriteLine("    {0}", language);
                }

                defaultLanguage = CodeDomProvider.GetLanguageFromExtension(defaultExtension);
                Console.WriteLine("  Default language:        {0}",
                    defaultLanguage);
                Console.WriteLine();

                // Get the compiler settings for this provider.
                CompilerParameters langCompilerConfig = info.CreateDefaultCompilerParameters();

                Console.WriteLine("  Compiler options:        {0}",
                    langCompilerConfig.CompilerOptions);
                Console.WriteLine("  Compiler warning level:  {0}",
                    langCompilerConfig.WarningLevel);
                Console.WriteLine();
            }
        }
    }
}

' Command-line argument examples:
'      - Displays Visual Basic, C#, and JScript compiler settings.
'   <exe_name> Language CSharp
'      - Displays the compiler settings for C#.
'   <exe_name> All
'      - Displays settings for all configured compilers.
'   <exe_name> Config Pascal
'      - Displays settings for configured Pascal language provider,
'        if one exists.
'   <exe_name> Extension .vb
'      - Displays settings for the compiler associated with the .vb
'        file extension.

Imports System.IO
Imports System.Globalization
Imports System.CodeDom
Imports System.CodeDom.Compiler
Imports Microsoft.CSharp
Imports System.ComponentModel

Namespace CodeDomCompilerInfoSample

   Class CompilerInfoSample

      <STAThread()>  _
      Public Shared Sub Main(ByVal args() As String)

        Dim queryCommand As String = ""
        Dim queryArg As String = ""
        Dim iNumArguments As Integer = args.Length
        
        ' Get input command-line arguments.
        If iNumArguments > 0 Then
            queryCommand = args(0).ToUpper(CultureInfo.InvariantCulture)
            
            If iNumArguments > 1 Then
                queryArg = args(1)
            End If
        End If
        
        ' Determine which method to call.
        Console.WriteLine()
        Select Case queryCommand
            Case "LANGUAGE"
                ' Display compiler information for input language.
                DisplayCompilerInfoForLanguage(queryArg)
            Case "EXTENSION"
                ' Display compiler information for input file extension.
                DisplayCompilerInfoUsingExtension(queryArg)
            Case "CONFIG"
                ' Display settings for the configured language provider.
                DisplayCompilerInfoForConfigLanguage(queryArg)
            Case "ALL"
                ' Display compiler information for all configured 
                ' language providers.
                DisplayAllCompilerInfo()
            Case Else
                ' There was no command-line argument, or the 
                ' command-line argument was not recognized.
                ' Display the C#, Visual Basic and JScript 
                ' compiler information.
                DisplayCSharpCompilerInfo()
                DisplayVBCompilerInfo()
                DisplayJScriptCompilerInfo()
        End Select

      End Sub
      
      
      Shared Sub DisplayCSharpCompilerInfo()
         
         ' Get the provider for Microsoft.CSharp
            Dim provider = CodeDomProvider.CreateProvider("CSharp")
         
         ' Display the C# language provider information.
         Console.WriteLine("CSharp provider is {0}", _
            provider.ToString())
         Console.WriteLine("  Provider hash code:     {0}", _
            provider.GetHashCode().ToString())
         Console.WriteLine("  Default file extension: {0}", _
            provider.FileExtension)
         
         Console.WriteLine()
      End Sub
      
      
      Shared Sub DisplayVBCompilerInfo()
         ' Get the provider for Microsoft.VisualBasic
            Dim provider = CodeDomProvider.CreateProvider("VisualBasic")
         
         ' Display the Visual Basic language provider information.
         Console.WriteLine("Visual Basic provider is {0}", _
            provider.ToString())
         Console.WriteLine("  Provider hash code:     {0}", _
            provider.GetHashCode().ToString())
         Console.WriteLine("  Default file extension: {0}", _
            provider.FileExtension)
         
         Console.WriteLine()
      End Sub
      
      
      Shared Sub DisplayJScriptCompilerInfo()
         ' Get the provider for JScript.
         Dim provider As CodeDomProvider
         
         Try
            provider = CodeDomProvider.CreateProvider("js")
            
            ' Display the JScript language provider information.
            Console.WriteLine("JScript language provider is {0}", _
                provider.ToString())
            Console.WriteLine("  Provider hash code:     {0}", _
                provider.GetHashCode().ToString())
            Console.WriteLine("  Default file extension: {0}", _
                provider.FileExtension)
            Console.WriteLine()
         Catch e As System.Configuration.ConfigurationException
            ' The JScript language provider was not found.
            Console.WriteLine("There is no configured JScript language provider.")
         End Try

      End Sub
      
      Shared Sub DisplayCompilerInfoUsingExtension(fileExtension As String)
         If Not fileExtension.StartsWith(".") Then
            fileExtension = "." + fileExtension
         End If

         ' Get the language associated with the file extension.
         If CodeDomProvider.IsDefinedExtension(fileExtension) Then
            Dim provider As CodeDomProvider
            Dim language As String = CodeDomProvider.GetLanguageFromExtension(fileExtension)
            
            Console.WriteLine("The language ""{0}"" is associated with file extension ""{1}""", _
                language, fileExtension)
            Console.WriteLine()
            
            ' Check for a corresponding language provider.
            If CodeDomProvider.IsDefinedLanguage(language) Then
               provider = CodeDomProvider.CreateProvider(language)
               
               ' Display information about this language provider.
               Console.WriteLine("Language provider:  {0}", _
                  provider.ToString())
               Console.WriteLine()
               
               ' Get the compiler settings for this language.
               Dim langCompilerInfo As CompilerInfo = CodeDomProvider.GetCompilerInfo(language)
               Dim langCompilerConfig As CompilerParameters = langCompilerInfo.CreateDefaultCompilerParameters()
               
               Console.WriteLine("  Compiler options:        {0}", _
                   langCompilerConfig.CompilerOptions)
               Console.WriteLine("  Compiler warning level:  {0}", _
                   langCompilerConfig.WarningLevel)
            End If
         Else
            ' Tell the user that the language provider was not found.
            Console.WriteLine("There is no language provider associated with input file extension ""{0}"".", fileExtension)
         End If
      End Sub
     
      
      Shared Sub DisplayCompilerInfoForLanguage(language As String)
         Dim provider As CodeDomProvider
         
         ' Check for a provider corresponding to the input language.  
         If CodeDomProvider.IsDefinedLanguage(language) Then
            provider = CodeDomProvider.CreateProvider(language)
            
            ' Display information about this language provider.
            Console.WriteLine("Language provider:  {0}", _
                provider.ToString())
            Console.WriteLine()
            Console.WriteLine("  Default file extension:  {0}", _
                provider.FileExtension)
            Console.WriteLine()
            
            ' Get the compiler settings for this language.
            Dim langCompilerInfo As CompilerInfo = CodeDomProvider.GetCompilerInfo(language)
            Dim langCompilerConfig As CompilerParameters = langCompilerInfo.CreateDefaultCompilerParameters()
            
            Console.WriteLine("  Compiler options:        {0}", _
                langCompilerConfig.CompilerOptions)
            Console.WriteLine("  Compiler warning level:  {0}", _
                langCompilerConfig.WarningLevel)
         Else
            ' Tell the user that the language provider was not found.
            Console.WriteLine("There is no provider configured for input language ""{0}"".", _
                language)
         End If

      End Sub
      
      Shared Sub DisplayCompilerInfoForConfigLanguage(configLanguage As String)
         Dim info As CompilerInfo = CodeDomProvider.GetCompilerInfo(configLanguage)
         
         ' Check whether there is a provider configured for this language.
         If info.IsCodeDomProviderTypeValid Then
            ' Get a provider instance using the configured type information.
            Dim provider As CodeDomProvider
            provider = CType(Activator.CreateInstance(info.CodeDomProviderType), CodeDomProvider)
            
            ' Display information about this language provider.
            Console.WriteLine("Language provider:  {0}", _
                provider.ToString())
            Console.WriteLine()
            Console.WriteLine("  Default file extension:  {0}", _
                provider.FileExtension)
            Console.WriteLine()
            
            ' Get the compiler settings for this language.
            Dim langCompilerConfig As CompilerParameters = info.CreateDefaultCompilerParameters()
            
            Console.WriteLine("  Compiler options:        {0}", _
                langCompilerConfig.CompilerOptions)
            Console.WriteLine("  Compiler warning level:  {0}", _
                langCompilerConfig.WarningLevel)
         Else
            ' Tell the user that the language provider was not found.
            Console.WriteLine("There is no provider configured for input language ""{0}"".", configLanguage)
         End If
      End Sub
      
      
      Shared Sub DisplayAllCompilerInfo()
         Dim allCompilerInfo As CompilerInfo() = CodeDomProvider.GetAllCompilerInfo()
         Dim info As CompilerInfo
         For Each info In  allCompilerInfo

            Dim defaultLanguage As String
            Dim defaultExtension As String

            Dim provider As CodeDomProvider = info.CreateProvider()
            
            ' Display information about this configured provider.
            Console.WriteLine("Language provider:  {0}", _
                provider.ToString())
            Console.WriteLine()
            
            Console.WriteLine("  Supported file extension(s):")
            Dim extension As String
            For Each extension In info.GetExtensions()
               Console.WriteLine("    {0}", extension)
            Next extension
            
            defaultExtension = provider.FileExtension
            If Not defaultExtension.StartsWith(".") Then
               defaultExtension = "." + defaultExtension
            End If
 
            Console.WriteLine("  Default file extension:  {0}", _
              defaultExtension)
            Console.WriteLine()
            
            Console.WriteLine("  Supported language(s):")
            Dim language As String
            For Each language In  info.GetLanguages()
               Console.WriteLine("    {0}", language)
            Next language
            defaultLanguage = CodeDomProvider.GetLanguageFromExtension(defaultExtension)
            Console.WriteLine("  Default language:        {0}", _
               defaultLanguage)
            Console.WriteLine()
            
            ' Get the compiler settings for this provider.
            Dim langCompilerConfig As CompilerParameters = info.CreateDefaultCompilerParameters()
            
            Console.WriteLine("  Compiler options:        {0}", _
                langCompilerConfig.CompilerOptions)
            Console.WriteLine("  Compiler warning level:  {0}", _
                langCompilerConfig.WarningLevel)
            Console.WriteLine()
         Next info
      End Sub

   End Class
End Namespace 'CodeDomCompilerInfoSample

Comentários

Use a CompilerInfo classe para determinar se uma CodeDomProvider implementação está configurada no computador ou para examinar as configurações e as configurações do compilador para um provedor de idioma específico.

O <elemento system.codedom> no arquivo de configuração do computador contém as configurações do provedor de idiomas e do compilador. Cada provedor de idioma configurado tem um elemento de configuração do compilador correspondente. Cada elemento define o CodeDomProvider tipo de implementação, nomes de idioma com suporte, extensões de nome de arquivo com suporte e parâmetros do compilador.

O .NET Framework define as configurações iniciais do compilador no arquivo de configuração do computador. Desenvolvedores e fornecedores de compilador podem adicionar configurações para uma nova CodeDomProvider implementação.

A CompilerInfo classe fornece acesso somente leitura a essas configurações no arquivo de configuração do computador. Use os membros e CodeDomProviderType os GetLanguagesGetExtensionsmembros para examinar os atributos de configuração correspondentes para um provedor de idiomas. Use o CreateDefaultCompilerParameters método para obter as opções do compilador e os valores de atributo de nível de aviso para um provedor de idiomas.

Para obter mais detalhes sobre as configurações do provedor de idiomas no arquivo de configuração, consulte o Esquema de Configurações do Compilador e do Provedor de Idiomas.

Confira também

• CompilerParameters
• CodeDomProvider
• Esquema de configurações do compilador e do provedor de idiomas