public TextExpressionCompiler(TextExpressionCompilerSettings settings)
{
if (settings == null)
{
throw FxTrace.Exception.ArgumentNull("settings");
}
if (settings.Activity == null)
{
throw FxTrace.Exception.Argument("settings", SR.TextExpressionCompilerActivityRequired);
}
if (settings.ActivityName == null)
{
throw FxTrace.Exception.Argument("settings", SR.TextExpressionCompilerActivityNameRequired);
}
if (settings.Language == null)
{
throw FxTrace.Exception.Argument("settings", SR.TextExpressionCompilerLanguageRequired);
}
this.expressionDescriptors = new List<CompiledExpressionDescriptor>();
this.compiledDataContexts = new Stack<CompiledDataContextDescriptor>();
this.nextContextId = 0;
this.settings = settings;
this.activityFullName = activityFullName = GetActivityFullName(settings);
this.generateSource = this.settings.AlwaysGenerateSource;
this.lineNumbersForNSes = new Dictionary<string, int>();
this.lineNumbersForNSesForImpl = new Dictionary<string, int>();
}
void GenerateSource(bool isSupportedVersion, string filePath, AssemblyBuilder assemblyBuilder, WorkflowService workflowService, out string codeFileName, out bool generatedSource, out string activityName)
{
// Get unique file and type name for the workflowservice
codeFileName = assemblyBuilder.GetTempFilePhysicalPath(assemblyBuilder.CodeDomProvider.FileExtension);
if (isSupportedVersion)
{
activityName = WorkflowServiceHostFactory.GetSupportedVersionGeneratedTypeName(filePath);
}
else
{
activityName = workflowService.Name.LocalName + "_" + Guid.NewGuid().ToString().Replace("-", "_");
}
TextExpressionCompilerSettings settings = new TextExpressionCompilerSettings
{
Activity = workflowService.Body,
ActivityName = activityName,
ActivityNamespace = GeneratedNamespace,
Language = CodeDomProvider.GetLanguageFromExtension(assemblyBuilder.CodeDomProvider.FileExtension),
GenerateAsPartialClass = false,
AlwaysGenerateSource = false,
ForImplementation = false
};
TextExpressionCompiler compiler = new TextExpressionCompiler(settings);
generatedSource = false;
using (StreamWriter fileStream = new StreamWriter(codeFileName))
{
try
{
generatedSource = compiler.GenerateSource(fileStream);
}
catch (Exception ex)
{
if (Fx.IsFatal(ex))
{
throw;
}
throw FxTrace.Exception.AsError(new HttpCompileException(SR.XamlBuildProviderExtensionException(ex.Message)));
}
}
}
string GetActivityFullName(TextExpressionCompilerSettings settings)
{
string rootNamespacePrefix = null;
string namespacePrefix = null;
string activityFullName = "";
if (this.IsVB && !String.IsNullOrWhiteSpace(this.settings.RootNamespace))
{
rootNamespacePrefix = this.settings.RootNamespace + ".";
}
if (!String.IsNullOrWhiteSpace(this.settings.ActivityNamespace))
{
namespacePrefix = this.settings.ActivityNamespace + ".";
}
if (rootNamespacePrefix != null)
{
if (namespacePrefix != null)
{
activityFullName = rootNamespacePrefix + namespacePrefix + settings.ActivityName;
}
else
{
activityFullName = rootNamespacePrefix + settings.ActivityName;
}
}
else
{
if (namespacePrefix != null)
{
activityFullName = namespacePrefix + settings.ActivityName;
}
else
{
activityFullName = settings.ActivityName;
}
}
return activityFullName;
}
