CodeDomProvider.GenerateCodeFromCompileUnit Method

Definition

Namespace:

System.CodeDom.Compiler

Assembly:

System.CodeDom.dll

Package:

System.CodeDom v9.0.0-rc.2.24473.5

Source:

CodeDomProvider.cs

Generates code for the specified Code Document Object Model (CodeDOM) compilation unit and sends it to the specified text writer, using the specified options.

public:
 virtual void GenerateCodeFromCompileUnit(System::CodeDom::CodeCompileUnit ^ compileUnit, System::IO::TextWriter ^ writer, System::CodeDom::Compiler::CodeGeneratorOptions ^ options);

public virtual void GenerateCodeFromCompileUnit (System.CodeDom.CodeCompileUnit compileUnit, System.IO.TextWriter writer, System.CodeDom.Compiler.CodeGeneratorOptions options);

abstract member GenerateCodeFromCompileUnit : System.CodeDom.CodeCompileUnit * System.IO.TextWriter * System.CodeDom.Compiler.CodeGeneratorOptions -> unit
override this.GenerateCodeFromCompileUnit : System.CodeDom.CodeCompileUnit * System.IO.TextWriter * System.CodeDom.Compiler.CodeGeneratorOptions -> unit

Public Overridable Sub GenerateCodeFromCompileUnit (compileUnit As CodeCompileUnit, writer As TextWriter, options As CodeGeneratorOptions)

Parameters

compileUnit

CodeCompileUnit

A CodeCompileUnit for which to generate code.

writer

TextWriter

The TextWriter to which the output code is sent.

options

CodeGeneratorOptions

A CodeGeneratorOptions that indicates the options to use for generating code.

Exceptions

NotImplementedException

Neither this method nor the CreateGenerator() method is overridden in a derived class.

Examples

The following code example shows the use of the GenerateCodeFromCompileUnit method to generate code for a "Hello World" application from a CodeCompileUnit. This example is part of a larger example provided for the CodeDomProvider class.

static void GenerateCode( CodeDomProvider^ provider, CodeCompileUnit^ compileunit )
{
    // Build the source file name with the appropriate
    // language extension.
    String^ sourceFile;
    if ( provider->FileExtension->StartsWith( "." ) )
    {
        sourceFile = String::Concat( "TestGraph", provider->FileExtension );
    }
    else
    {
        sourceFile = String::Concat( "TestGraph.", provider->FileExtension );
    }

    // Create an IndentedTextWriter, constructed with
    // a StreamWriter to the source file.
    IndentedTextWriter^ tw = gcnew IndentedTextWriter( gcnew StreamWriter( sourceFile,false ),"    " );

    // Generate source code using the code generator.
    provider->GenerateCodeFromCompileUnit( compileunit, tw, gcnew CodeGeneratorOptions );

    // Close the output file.
    tw->Close();
}

public static void GenerateCode(CodeDomProvider provider,
    CodeCompileUnit compileunit)
{
    // Build the source file name with the appropriate
    // language extension.
    String sourceFile;
    if (provider.FileExtension[0] == '.')
    {
        sourceFile = "TestGraph" + provider.FileExtension;
    }
    else
    {
        sourceFile = "TestGraph." + provider.FileExtension;
    }

    // Create an IndentedTextWriter, constructed with
    // a StreamWriter to the source file.
    IndentedTextWriter tw = new IndentedTextWriter(new StreamWriter(sourceFile, false), "    ");
    // Generate source code using the code generator.
    provider.GenerateCodeFromCompileUnit(compileunit, tw, new CodeGeneratorOptions());
    // Close the output file.
    tw.Close();
}

Public Shared Sub GenerateCode(ByVal provider As CodeDomProvider, ByVal compileunit As CodeCompileUnit)

    ' Build the source file name with the appropriate
    ' language extension.
    Dim sourceFile As String
    If provider.FileExtension.StartsWith(".") Then
        sourceFile = "TestGraph" + provider.FileExtension
    Else
        sourceFile = "TestGraph." + provider.FileExtension
    End If

    ' Create an IndentedTextWriter, constructed with
    ' a StreamWriter to the source file.
    Dim tw As New IndentedTextWriter(New StreamWriter(sourceFile, False), "    ")
    ' Generate source code using the code generator.
    provider.GenerateCodeFromCompileUnit(compileunit, tw, New CodeGeneratorOptions())
    ' Close the output file.
    tw.Close()
End Sub

Remarks

Note

In the .NET Framework versions 1.0 and 1.1, this method is provided by the ICodeGenerator implementation that is returned by the CreateGenerator method of the provider. In version 2.0, this method can be called directly on the code provider even if it is not overridden by the code provider. If the code provider does not override this method, the ICodeGenerator implementation is called by the base class.

Notes to Inheritors

If you override this method, you must not call the corresponding method of the base class. The base-class method creates a generator in the derived class using the obsolete CreateGenerator() method for compatibility with preexisting providers that use code generators. The base-class method then calls the equivalent method in the ICodeGenerator implementation to perform this function. You will get a NotImplementedException if you call the base-class method from a code provider that does not use a code generator.

See also

• TextWriter
• CodeExpression
• CodeGeneratorOptions