CompilerError Classe

Definição

Namespace:

System.CodeDom.Compiler

Assembly:

System.CodeDom.dll

Pacote:

System.CodeDom v9.0.0-rc.2.24473.5

Origem:

CompilerError.cs

Representa um erro ou aviso de compilador.

public ref class CompilerError

public class CompilerError

type CompilerError = class

Public Class CompilerError

Herança

Object

CompilerError

Derivado

System.Workflow.ComponentModel.Compiler.WorkflowCompilerError

Exemplos

O exemplo a seguir compila um grafo de programa CodeDOM e fornece um exemplo de como acessar programaticamente dados compilerError.

#using <System.dll>

using namespace System;
using namespace System::CodeDom;
using namespace System::CodeDom::Compiler;
using namespace Microsoft::CSharp;
CodeCompileUnit^ GetCompileUnit()
{
   
   // Create a compile unit to contain a CodeDOM graph.
   CodeCompileUnit^ cu = gcnew CodeCompileUnit;
   
   // Create a namespace named TestSpace.
   CodeNamespace^ cn = gcnew CodeNamespace( "TestSpace" );
   
   // Declare a new type named TestClass. 
   CodeTypeDeclaration^ cd = gcnew CodeTypeDeclaration( "TestClass" );
   
   // Declare a new member string field named TestField.
   CodeMemberField^ cmf = gcnew CodeMemberField( "System.String","TestField" );
   
   // Add the field to the type.
   cd->Members->Add( cmf );
   
   // Declare a new member method named TestMethod.
   CodeMemberMethod^ cm = gcnew CodeMemberMethod;
   cm->Name = "TestMethod";
   
   // Declare a string variable named TestVariable.
   CodeVariableDeclarationStatement^ cvd = gcnew CodeVariableDeclarationStatement( "System.String1","TestVariable" );
   cm->Statements->Add( cvd );
   
   // Cast the TestField reference expression to string and assign it to the TestVariable.
   CodeAssignStatement^ ca = gcnew CodeAssignStatement( gcnew CodeVariableReferenceExpression( "TestVariable" ),gcnew CodeCastExpression( "System.String2",gcnew CodeFieldReferenceExpression( gcnew CodeThisReferenceExpression,"TestField" ) ) );
   
   // This code can be used to generate the following code in C#:
   //            TestVariable = ((string)(this.TestField));
   cm->Statements->Add( ca );
   
   // Add the TestMethod member to the TestClass type.
   cd->Members->Add( cm );
   
   // Add the TestClass type to the namespace.
   cn->Types->Add( cd );
   
   // Add the TestSpace namespace to the compile unit.
   cu->Namespaces->Add( cn );
   return cu;
}

int main()
{
   
   // Output some program information using Console.WriteLine.
   Console::WriteLine( "This program compiles a CodeDOM program that incorrectly declares multiple data" );
   Console::WriteLine( "types to demonstrate handling compiler errors programmatically." );
   Console::WriteLine( "" );
   
   // Compile the CodeCompileUnit retrieved from the GetCompileUnit() method.
   //CSharpCodeProvider ^ provider = gcnew Microsoft::CSharp::CSharpCodeProvider;
   CodeDomProvider ^ provider = CodeDomProvider::CreateProvider("CSharp");
   
   // Initialize a CompilerParameters with the options for compilation.
   array<String^>^assemblies = {"System.dll"};
   CompilerParameters^ options = gcnew CompilerParameters( assemblies,"output.exe" );
   
   // Compile the CodeDOM graph and store the results in a CompilerResults.
   CompilerResults^ results = provider->CompileAssemblyFromDom( options, GetCompileUnit() );
   
   // Compilation produces errors. Print out each error.
   Console::WriteLine( "Listing errors from compilation: " );
   Console::WriteLine( "" );
   for ( int i = 0; i < results->Errors->Count; i++ )
      Console::WriteLine( results->Errors[ i ] );
}

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

namespace CompilerError_Example
{
    public class Class1
    {		
        [STAThread]
        static void Main(string[] args)			
        {
            // Output some program information using Console.WriteLine.
            Console.WriteLine("This program compiles a CodeDOM program that incorrectly declares multiple data");
            Console.WriteLine("types to demonstrate handling compiler errors programmatically.");
            Console.WriteLine("");

            // Compile the CodeCompileUnit retrieved from the GetCompileUnit() method.
            CSharpCodeProvider provider = new Microsoft.CSharp.CSharpCodeProvider();

            // Initialize a CompilerParameters with the options for compilation.
            string[] assemblies = new String[] {"System.dll"};
            CompilerParameters options = new CompilerParameters( assemblies, "output.exe");

            // Compile the CodeDOM graph and store the results in a CompilerResults.
            CompilerResults results = provider.CompileAssemblyFromDom(options, GetCompileUnit());

            // Compilation produces errors. Print out each error.
            Console.WriteLine("Listing errors from compilation: ");
            Console.WriteLine("");
                for( int i=0; i<results.Errors.Count; i++)
                Console.WriteLine(results.Errors[i].ToString());			
        }

        public static CodeCompileUnit GetCompileUnit()
        {
            // Create a compile unit to contain a CodeDOM graph.
            CodeCompileUnit cu = new CodeCompileUnit();

            // Create a namespace named TestSpace.
            CodeNamespace cn = new CodeNamespace("TestSpace");		

            // Declare a new type named TestClass.	
            CodeTypeDeclaration cd = new CodeTypeDeclaration("TestClass");

            // Declare a new member string field named TestField.
            CodeMemberField cmf = new CodeMemberField("System.String", "TestField");

            // Add the field to the type.
            cd.Members.Add(cmf);

            // Declare a new member method named TestMethod.
            CodeMemberMethod cm = new CodeMemberMethod();
            cm.Name = "TestMethod";

            // Declare a string variable named TestVariable.
            CodeVariableDeclarationStatement cvd = new CodeVariableDeclarationStatement("System.String1", "TestVariable");
            cm.Statements.Add(cvd);

            // Cast the TestField reference expression to string and assign it to the TestVariable.
            CodeAssignStatement ca = new CodeAssignStatement(new CodeVariableReferenceExpression("TestVariable"),
                new CodeCastExpression("System.String2", new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), "TestField")));

            // This code can be used to generate the following code in C#:
            //            TestVariable = ((string)(this.TestField));

            cm.Statements.Add(ca);

            // Add the TestMethod member to the TestClass type.
            cd.Members.Add(cm);

            // Add the TestClass type to the namespace.
            cn.Types.Add(cd);

            // Add the TestSpace namespace to the compile unit.
            cu.Namespaces.Add(cn);
            return cu;
        }
    }
}

Imports System.CodeDom
Imports System.CodeDom.Compiler
Imports Microsoft.CSharp

Namespace CompilerError_Example
    _
    Class Class1

        Shared Sub Main()
            ' Output some program information using Console.WriteLine.
            Console.WriteLine("This program compiles a CodeDOM program that incorrectly declares multiple data")
            Console.WriteLine("types to demonstrate handling compiler errors programatically.")
            Console.WriteLine("")

            ' Compile the CodeCompileUnit retrieved from the GetCompileUnit() method.
            Dim provider As CodeDomProvider
            provider = CodeDomProvider.CreateProvider("CSharp")

            ' Initialize a CompilerParameters with the options for compilation.
            Dim assemblies() As String = New [String]() {"System.dll"}
            Dim options As New CompilerParameters(assemblies, "output.exe")

            ' Compile the CodeDOM graph and store the results in a CompilerResults.
            Dim results As CompilerResults = provider.CompileAssemblyFromDom(options, GetCompileUnit())

            ' Compilation produces errors. Print out each error.
            Console.WriteLine("Listing errors from compilation: ")
            Console.WriteLine("")
            Dim i As Integer
            For i = 0 To results.Errors.Count - 1
                Console.WriteLine(results.Errors(i).ToString())
            Next i
        End Sub

        Public Shared Function GetCompileUnit() As CodeCompileUnit
            ' Create a compile unit to contain a CodeDOM graph.
            Dim cu As New CodeCompileUnit()

            ' Create a namespace named TestSpace.
            Dim cn As New CodeNamespace("TestSpace")

            ' Declare a new type named TestClass.
            Dim cd As New CodeTypeDeclaration("TestClass")

            ' Declare a new member string field named TestField.
            Dim cmf As New CodeMemberField("System.String", "TestField")

            ' Add the field to the type.
            cd.Members.Add(cmf)

            ' Declare a new member method named TestMethod.
            Dim cm As New CodeMemberMethod()
            cm.Name = "TestMethod"

            ' Declare a string variable named TestVariable.
            Dim cvd As New CodeVariableDeclarationStatement("System.String1", "TestVariable")
            cm.Statements.Add(cvd)

            ' Cast the TestField reference expression to string and assign it to the TestVariable.
            Dim ca As New CodeAssignStatement(New CodeVariableReferenceExpression("TestVariable"), New CodeCastExpression("System.String2", New CodeFieldReferenceExpression(New CodeThisReferenceExpression(), "TestField")))

            ' This code can be used to generate the following code in C#:
            '            TestVariable = ((string)(this.TestField));

            cm.Statements.Add(ca)
            ' Add the TestMethod member to the TestClass type.
            cd.Members.Add(cm)

            ' Add the TestClass type to the namespace.
            cn.Types.Add(cd)
            ' Add the TestSpace namespace to the compile unit.
            cu.Namespaces.Add(cn)
            Return cu
        End Function
    End Class
End Namespace

Comentários

CompilerError representa um erro do compilador ou um aviso que foi retornado pelo compilador.

Observação

Essa classe contém uma demanda de herança no nível da classe que se aplica a todos os membros. Um SecurityException é gerado quando a classe derivada não tem permissão de confiança total. Para obter detalhes sobre as demandas de herança, consulte Demandas de herança.

Construtores

CompilerError()	Inicializa uma nova instância da classe CompilerError.
CompilerError(String, Int32, Int32, String, String)	Inicializa uma nova instância da classe CompilerError usando o nome do arquivo, coluna, número do erro e texto do erro especificados.

Propriedades

Column	Obtém ou define o número da coluna em que a origem do erro ocorre.
ErrorNumber	Obtém ou define o número do erro.
ErrorText	Obtém ou define o texto da mensagem de erro.
FileName	Obtém ou define o nome do arquivo de origem que contém o código que causou o erro.
IsWarning	Obtém ou define um valor que indica se o erro é um aviso.
Line	Obtém ou define o número de linha em que a origem do erro ocorre.

Métodos

Equals(Object)	Determina se o objeto especificado é igual ao objeto atual. (Herdado de Object)
GetHashCode()	Serve como a função de hash padrão. (Herdado de Object)
GetType()	Obtém o Type da instância atual. (Herdado de Object)
MemberwiseClone()	Cria uma cópia superficial do Object atual. (Herdado de Object)
ToString()	Fornece uma implementação do método ToString() do objeto.

Confira também

• CompilerErrorCollection