CompilerInfo Classe
Definição
Importante
Algumas informações dizem respeito a um produto pré-lançado que pode ser substancialmente modificado antes de ser lançado. A Microsoft não faz garantias, de forma expressa ou implícita, em relação à informação aqui apresentada.
Representa as definições de configuração de um fornecedor de linguagem. Esta classe não pode ser herdada.
public ref class CompilerInfo sealedpublic sealed class CompilerInfotype CompilerInfo = classPublic NotInheritable Class CompilerInfo- Herança
-
CompilerInfo
Exemplos
O seguinte exemplo de código mostra as definições de configuração do fornecedor de linguagem. Argumentos de linha de comandos são usados para especificar uma linguagem, extensão de nome de ficheiro ou tipo de fornecedor. Para a entrada dada, o exemplo determina o fornecedor de linguagem correspondente e apresenta as definições do compilador de linguagem configurado.
// 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
Observações
Use a CompilerInfo classe para determinar se uma CodeDomProvider implementação está configurada no computador, ou para examinar a configuração e as definições do compilador para um fornecedor de linguagem específico.
O <elemento system.codedom> no ficheiro de configuração da máquina contém as definições do fornecedor da linguagem e do compilador. Cada fornecedor de linguagem configurada tem um elemento de configuração do compilador correspondente. Cada elemento define o tipo de CodeDomProvider implementação, nomes de linguagens suportados, extensões de nomes de ficheiros suportadas e parâmetros do compilador.
O .NET Framework define as definições iniciais do compilador no ficheiro de configuração da máquina. Desenvolvedores e fornecedores de compiladores podem adicionar definições de configuração para uma nova CodeDomProvider implementação.
A CompilerInfo classe fornece acesso apenas de leitura a estas definições no ficheiro de configuração da máquina. Use os GetLanguages, GetExtensions, e CodeDomProviderType os membros para examinar os atributos de configuração correspondentes para um fornecedor de linguagem. Use o CreateDefaultCompilerParameters método para obter as opções do compilador e os valores de atributos de nível de aviso para um fornecedor de linguagem.
Para mais detalhes sobre as definições do fornecedor de linguagem no ficheiro de configuração, consulte Esquema de Definições do Compilador e do Fornecedor de Linguagem.
Note
Esta classe contém uma exigência de ligação ao nível da classe que se aplica a todos os membros. A SecurityException é lançado quando o chamador imediato não tem permissão de confiança total. Para detalhes sobre exigências de links, veja Link Exigs.
Propriedades
| Name | Description |
|---|---|
| CodeDomProviderType |
Obtém o tipo de implementação configurada CodeDomProvider . |
| IsCodeDomProviderTypeValid |
Devolve um valor que indica se a implementação do fornecedor de linguagem está configurada no computador. |
Métodos
| Name | Description |
|---|---|
| CreateDefaultCompilerParameters() |
Obtém as definições configuradas do compilador para a implementação do fornecedor da linguagem. |
| CreateProvider() |
Devolve uma CodeDomProvider instância para as definições atuais do fornecedor de língua. |
| CreateProvider(IDictionary<String,String>) |
Devolve uma CodeDomProvider instância para as definições atuais do fornecedor de línguas e as opções especificadas. |
| Equals(Object) |
Determina se o objeto especificado representa o mesmo fornecedor de linguagem e definições do compilador que o atual CompilerInfo. |
| GetExtensions() |
Devolve as extensões de nome de ficheiro suportadas pelo fornecedor da língua. |
| GetHashCode() |
Devolve o código hash da instância atual. |
| GetLanguages() |
Obtém os nomes das línguas suportados pelo fornecedor da língua. |
| GetType() |
Obtém o Type da instância atual. (Herdado de Object) |
| MemberwiseClone() |
Cria uma cópia superficial do atual Object. (Herdado de Object) |
| ToString() |
Devolve uma cadeia que representa o objeto atual. (Herdado de Object) |