private static Type CompileView(GeneratorResults razorResult, CompilerParameters compilerParameters)
{
var codeProvider = new CSharpCodeProvider(CompilerProperties);
var result = codeProvider.CompileAssemblyFromDom(compilerParameters, razorResult.GeneratedCode);
if (result.Errors != null && result.Errors.HasErrors)
{
throw new RazorCompilerException(result.Errors.OfType<CompilerError>().Where(x => !x.IsWarning));
}
var assembly = Assembly.LoadFrom(compilerParameters.OutputAssembly);
if (assembly == null)
{
throw new RazorCompilerException("Unable to load view assembly.");
}
var type = assembly.GetType(SimpleRazorConfiguration.Namespace + "." + compilerParameters.MainClass);
if (type == null)
{
throw new RazorCompilerException("Unable to load view assembly.");
}
return type;
}
public CompilerResults Compile(GeneratorResults generatorResults)
{
var parameters = CompilationParameters.CompilerParameters;
var codeProvider = CompilationParameters.CodeProvider;
var generatedCode = generatorResults.GeneratedCode;
var compiledCode = codeProvider.CompileAssemblyFromDom(parameters, generatedCode);
return compiledCode;
}
/// <summary>
/// Inspects the GeneratorResults and returns the source code.
/// </summary>
/// <param name="results"></param>
/// <param name="context"></param>
/// <returns></returns>
public override string InspectSource(GeneratorResults results, TypeContext context)
{
string generatedCode;
var builder = new StringBuilder();
using (var writer = new StringWriter(builder, CultureInfo.InvariantCulture))
{
_codeDomProvider.GenerateCodeFromCompileUnit(results.GeneratedCode, writer, new CodeGeneratorOptions());
generatedCode = builder.ToString();
}
return generatedCode;
}
protected internal virtual void ProcessChange(CancellationToken cancelToken, TextChange change, Block parseTree)
{
try {
if (!cancelToken.IsCancellationRequested)
{
GeneratorResults results = null;
RazorTemplateEngine engine = new RazorTemplateEngine(_host);
// Seek the buffer to the beginning
change.NewBuffer.Position = 0;
try {
results = engine.GenerateCode(change.NewBuffer, className: null, rootNamespace: null, sourceFileName: _sourceFileName, cancelToken: cancelToken);
}
catch (OperationCanceledException) {
// We've been cancelled, so just return.
return;
}
// Parsing complete! Check if we're still active:
bool lockTaken = false;
_syncLock.Enter(ref lockTaken);
if (lockTaken && !cancelToken.IsCancellationRequested)
{
// We're still active, check for tree changes, then update the parse tree
bool treeStructureChanged = parseTree == null || TreesAreDifferent(parseTree, results.Document, change);
Interlocked.Exchange(ref _currentParseTree, results.Document);
Interlocked.Exchange(ref _lastChangeOwner, null);
#if DEBUG
Interlocked.Exchange(ref _currentCodeCompileUnit, results.GeneratedCode);
#endif
_parseUnderway = false;
// Done, now exit the lock and fire the event
_syncLock.Exit();
OnDocumentParseComplete(new DocumentParseCompleteEventArgs()
{
GeneratorResults = results,
SourceChange = change,
TreeStructureChanged = treeStructureChanged
});
}
}
}
finally {
// Make sure we release the lock if we're holding it
if (_syncLock.IsHeldByCurrentThread)
{
_syncLock.Exit();
}
}
}
private RazorViewBase GenerateRazorView(CodeDomProvider codeProvider, GeneratorResults razorResult)
{
// Compile the generated code into an assembly
string outputAssemblyName = String.Format("Temp_{0}.dll", Guid.NewGuid().ToString("N"));
CompilerResults results = codeProvider.CompileAssemblyFromDom(
new CompilerParameters(new string[] {
GetAssemblyPath(typeof(Microsoft.CSharp.RuntimeBinder.Binder)),
GetAssemblyPath(typeof(System.Runtime.CompilerServices.CallSite)),
GetAssemblyPath(Assembly.GetExecutingAssembly()) }, outputAssemblyName),
razorResult.GeneratedCode);
if (results.Errors.HasErrors) {
CompilerError err = results.Errors
.OfType<CompilerError>()
.Where(ce => !ce.IsWarning)
.First();
var error = String.Format("Error Compiling Template: ({0}, {1}) {2})",
err.Line, err.Column, err.ErrorText);
return new ErrorView(error);
}
else {
// Load the assembly
Assembly assembly = Assembly.LoadFrom(outputAssemblyName);
if (assembly == null) {
string error = "Error loading template assembly";
return new ErrorView(error);
}
else {
// Get the template type
Type type = assembly.GetType("RazorOutput.RazorView");
if (type == null) {
string error = String.Format("Could not find type RazorOutput.Template in assembly {0}", assembly.FullName);
return new ErrorView(error);
}
else {
RazorViewBase view = Activator.CreateInstance(type) as RazorViewBase;
if (view == null) {
string error = "Could not construct RazorOutput.Template or it does not inherit from RazorViewBase";
return new ErrorView(error);
}
else {
return view;
}
}
}
}
}
private string CompileCode(GeneratorResults razorResult)
{
var codeProvider = new CSharpCodeProvider();
string outputAssemblyName = String.Format("Temp_{0}.dll", Guid.NewGuid().ToString("N"));
codeProvider.CompileAssemblyFromDom(
new CompilerParameters(new[]
{
typeof (Form1).Assembly.CodeBase.Replace("file:///", "").Replace("/", "\\"),
"System.Core.dll",
"Microsoft.CSharp.dll"
}, outputAssemblyName),
razorResult.GeneratedCode);
return outputAssemblyName;
}
public void SetGeneratorResults(GeneratorResults generatorResults)
{
if (generatorResults == null)
return;
Success = generatorResults.Success;
ParsedDocument = ParseNode(generatorResults.Document);
Messages =
from error in generatorResults.ParserErrors
select new TemplateMessage
{
Kind = TemplateMessageKind.Error,
Text = error.ToString(),
};
}
private void OnParseCompleted(GeneratorResults results, BackgroundParseTask parseTask)
{
try
{
// Lock the state objects
bool treeStructureChanged = true;
TextChange lastChange;
lock (_lock)
{
// Are we still active?
if (_outstandingParserTasks.Count == 0 || !ReferenceEquals(parseTask, _outstandingParserTasks.Peek()))
{
// We aren't, just abort
return;
}
// Ok, we're active. Flush out the changes from all the parser tasks and clear the stack of outstanding parse tasks
TextChange[] changes = _outstandingParserTasks.Select(t => t.Change).Reverse().ToArray();
lastChange = changes.Last();
_outstandingParserTasks.Clear();
// Take the current tree and check for differences
treeStructureChanged = CurrentParseTree == null || TreesAreDifferent(CurrentParseTree, results.Document, changes);
CurrentParseTree = results.Document;
#if DEBUG
_currentCompileUnit = results.GeneratedCode;
#endif
_lastChangeOwner = null;
}
// Done, now exit the lock and fire the event
OnDocumentParseComplete(new DocumentParseCompleteEventArgs()
{
GeneratorResults = results,
SourceChange = lastChange,
TreeStructureChanged = treeStructureChanged
});
}
finally
{
parseTask.Dispose();
}
}
private string ExecuteInternal(GeneratorResults razorResults, string defaultnamespace, string defaultclassname, IDictionary<string, object> bulaqData)
{
using (var provider = new CSharpCodeProvider())
{
var compiler = new CompilerParameters();
compiler.ReferencedAssemblies.Add("System.dll");
compiler.ReferencedAssemblies.Add("System.Core.dll");
compiler.ReferencedAssemblies.Add("Microsoft.CSharp.dll");
compiler.ReferencedAssemblies.Add(AppDomain.CurrentDomain.BaseDirectory + "\\bin\\BulaqCMS.Models.dll");
compiler.ReferencedAssemblies.Add(Assembly.GetExecutingAssembly().Location);
compiler.GenerateInMemory = true;
var result = provider.CompileAssemblyFromDom(compiler, razorResults.GeneratedCode);
if (result.Errors.HasErrors)
{
var error = result.Errors.OfType<CompilerError>().Where(i => !i.IsWarning).FirstOrDefault();
if (error != null) throw new Exception(error.ErrorText); //抛出错误
}
BulaqTemplateForRazorBase temp = (BulaqTemplateForRazorBase)result.CompiledAssembly.CreateInstance(defaultnamespace + "." + defaultclassname);
//temp.Model = new { Title = "Abduwaris" };//Model;
temp.SetProperty(bulaqData);
//if (temp.Layout != null)
//{
// //有布局页
//}
try
{
temp.Execute();
}
catch (Exception ex)
{
throw new Exception("执行错误", ex);
}
return temp.Output.ToString();
}
}
private static void AddModelNamespace(GeneratorResults razorResult, Type modelType)
{
if (string.IsNullOrWhiteSpace(modelType.Namespace))
{
return;
}
if (razorResult.GeneratedCode.Namespaces[0].Imports.OfType<CodeNamespaceImport>().Any(x => x.Namespace == modelType.Namespace))
{
return;
}
razorResult.GeneratedCode.Namespaces[0].Imports.Add(new CodeNamespaceImport(modelType.Namespace));
}
public CompilationResults(GeneratorResults generatorResults, TemplateBase compiled)
: base(true, generatorResults.Document, generatorResults.ParserErrors, generatorResults.GeneratedCode, generatorResults.DesignTimeLineMappings)
{
Compiled = compiled;
}
public CompilationResults(GeneratorResults generatorResults, IList<CompilerError> errors)
: base(false, generatorResults.Document, generatorResults.ParserErrors, generatorResults.GeneratedCode, generatorResults.DesignTimeLineMappings)
{
Errors = errors;
}
private Func<NancyRazorViewBase> GenerateRazorViewFactory(CodeDomProvider codeProvider, GeneratorResults razorResult, Assembly referencingAssembly, IEnumerable<string> rendererSpecificAssemblies, Type passedModelType)
{
var outputAssemblyName = Path.Combine(Path.GetTempPath(), String.Format("Temp_{0}.dll", Guid.NewGuid().ToString("N")));
var modelType = FindModelType(razorResult.Document, passedModelType);
var assemblies = new List<string>
{
GetAssemblyPath(typeof(System.Runtime.CompilerServices.CallSite)),
GetAssemblyPath(typeof(IHtmlString)),
GetAssemblyPath(Assembly.GetExecutingAssembly()),
GetAssemblyPath(modelType)
};
if (referencingAssembly != null)
assemblies.Add(GetAssemblyPath(referencingAssembly));
assemblies = assemblies
.Union(rendererSpecificAssemblies)
.ToList();
if (this.razorConfiguration != null)
{
var assemblyNames = this.razorConfiguration.GetAssemblyNames();
if (assemblyNames != null)
{
assemblies.AddRange(assemblyNames.Select(Assembly.Load).Select(GetAssemblyPath));
}
if (this.razorConfiguration.AutoIncludeModelNamespace)
{
AddModelNamespace(razorResult, modelType);
}
}
var compilerParameters = new CompilerParameters(assemblies.ToArray(), outputAssemblyName);
var results = codeProvider.CompileAssemblyFromDom(compilerParameters, razorResult.GeneratedCode);
if (results.Errors.HasErrors)
{
var err = results.Errors
.OfType<CompilerError>()
.Where(ce => !ce.IsWarning)
.Select(error => String.Format("Error Compiling Template: ({0}, {1}) {2})", error.Line, error.Column, error.ErrorText))
.Aggregate((s1, s2) => s1 + "<br/>" + s2);
return () => new NancyRazorErrorView(err);
}
var assembly = Assembly.LoadFrom(outputAssemblyName);
if (assembly == null)
{
const string error = "Error loading template assembly";
return () => new NancyRazorErrorView(error);
}
var type = assembly.GetType("RazorOutput.RazorView");
if (type == null)
{
var error = String.Format("Could not find type RazorOutput.Template in assembly {0}", assembly.FullName);
return () => new NancyRazorErrorView(error);
}
if (Activator.CreateInstance(type) as NancyRazorViewBase == null)
{
const string error = "Could not construct RazorOutput.Template or it does not inherit from RazorViewBase";
return () => new NancyRazorErrorView(error);
}
return () => (NancyRazorViewBase)Activator.CreateInstance(type);
}
private Func<INancyRazorView> GenerateRazorViewFactory(IRazorViewRenderer renderer, GeneratorResults generatorResults, Type passedModelType, ViewLocationResult viewLocationResult)
{
var modelType = GetModelTypeFromGeneratedCode(generatorResults, passedModelType);
var sourceCode = string.Empty;
if (this.razorConfiguration != null)
{
if (this.razorConfiguration.AutoIncludeModelNamespace)
{
AddModelNamespace(generatorResults, modelType);
}
}
using (var writer = new StringWriter())
{
renderer.Provider.GenerateCodeFromCompileUnit(generatorResults.GeneratedCode, writer, new CodeGeneratorOptions());
sourceCode = writer.ToString();
}
var compilation = CSharpCompilation.Create(
assemblyName: string.Format("Temp_{0}.dll", Guid.NewGuid().ToString("N")),
syntaxTrees: new[] { CSharpSyntaxTree.ParseText(sourceCode) },
references: this.GetMetadataReferences().Value,
options: new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
using (var ms = new MemoryStream())
{
var result = compilation.Emit(ms);
if (!result.Success)
{
return () => new NancyRazorErrorView(BuildErrorMessage(result, viewLocationResult, sourceCode), this.traceConfiguration);
}
ms.Seek(0, SeekOrigin.Begin);
var viewAssembly = Assembly.Load(ms.ToArray());
return () => (INancyRazorView) Activator.CreateInstance(viewAssembly.GetType("RazorOutput.RazorView"));
}
}
private static Type GetModelTypeFromGeneratedCode(GeneratorResults generatorResults, Type passedModelType)
{
return (Type)generatorResults.GeneratedCode.Namespaces[0].Types[0].UserData["ModelType"]
?? passedModelType
?? typeof(object);
}
private void OnParseCompleted(GeneratorResults results, BackgroundParseTask parseTask)
{
try
{
// Lock the state objects
bool treeStructureChanged = true;
TextChange lastChange;
lock (_lock)
{
// Are we still active?
if (_outstandingParserTasks.Count == 0 || !ReferenceEquals(parseTask, _outstandingParserTasks.Peek()))
{
// We aren't, just abort
return;
}
// Ok, we're active. Flush out the changes from all the parser tasks and clear the stack of outstanding parse tasks
TextChange[] changes = _outstandingParserTasks.Select(t => t.Change).Reverse().ToArray();
lastChange = changes.Last();
_outstandingParserTasks.Clear();
// Take the current tree and check for differences
treeStructureChanged = CurrentParseTree == null || TreesAreDifferent(CurrentParseTree, results.Document, changes);
CurrentParseTree = results.Document;
#if DEBUG
_currentCompileUnit = results.GeneratedCode;
#endif
_lastChangeOwner = null;
}
// Done, now exit the lock and fire the event
OnDocumentParseComplete(new DocumentParseCompleteEventArgs()
{
GeneratorResults = results,
SourceChange = lastChange,
TreeStructureChanged = treeStructureChanged
});
}
finally
{
parseTask.Dispose();
}
}
private static SyntaxTree GetSyntaxTree(WebPageRazorHost host, GeneratorResults razorResult)
{
// Use CodeDom to generate source code from the CodeCompileUnit
// Use roslyn to parse it back
using (var codeDomProvider = CodeDomProvider.CreateProvider(host.CodeLanguage.LanguageName))
using (var viewCodeStream = new MemoryStream())
using (var viewCodeWriter = new StreamWriter(viewCodeStream))
{
codeDomProvider.GenerateCodeFromCompileUnit(razorResult.GeneratedCode, viewCodeWriter, new CodeGeneratorOptions());
viewCodeWriter.Flush();
viewCodeStream.Position = 0;
var sourceText = SourceText.From(viewCodeStream);
// We need a different file path for the generated file, otherwise breakpoints won't get
// hit due to #line directives pointing at the original .cshtml. If we'd want breakpoint
// in the generated .cs code, we'd have to dump them somewhere on disk, and specify the path here.
var sourcePath = string.IsNullOrEmpty(host.PhysicalPath)
? host.VirtualPath // yay virtual paths, won't point at the original file
: Path.ChangeExtension(host.PhysicalPath, ".roslynviewengine");
return SyntaxFactory.ParseSyntaxTree(sourceText, path: sourcePath);
}
}
private static CompilerResults CompileView(GeneratorResults razorResult, CompilerParameters compilerParameters)
{
var codeProvider = new CSharpCodeProvider(CompilerProperties);
return codeProvider.CompileAssemblyFromDom(compilerParameters, razorResult.GeneratedCode);
}
protected static void ThrowExceptionIfErrors(GeneratorResults results)
{
if (results.Success)
{
return;
}
throw new AggregateException(results
.ParserErrors
.Select(e => new Exception(string.Format(LineX0TColX1TErrorX2Rn,
e.Location.LineIndex,
e.Location.CharacterIndex,
e.Message))));
}
private static bool CheckParseResults(string resourceName, GeneratorResults generatorResults, string templateContent)
{
if (!generatorResults.ParserErrors.Any())
return true;
var contentlines = templateContent
.Split('\n')
.Select(line => line.Trim())
.ToList();
string parseExceptionMessage;
try
{
parseExceptionMessage = string.Join(
Environment.NewLine,
generatorResults
.ParserErrors
.Select(error => "parse error at template: {0}{1}line {2}: {3}{1}parse error: {4}".FormatWith(resourceName, Environment.NewLine, error.Location.LineIndex + 1, contentlines[error.Location.LineIndex], error.Message))
.ToArray()
);
}
catch
{
// on any error create a raw error message
parseExceptionMessage = string.Join(
Environment.NewLine,
generatorResults
.ParserErrors
.Select(error => error.ToString())
.ToArray());
}
throw new TemplateParseException(parseExceptionMessage);
}
public CodeGenerationException(GeneratorResults generatorResults)
: base("The template could not be parsed")
{
GeneratorResults = generatorResults;
}
private Func<INancyRazorView> GenerateRazorViewFactory(IRazorViewRenderer viewRenderer, GeneratorResults razorResult, Assembly referencingAssembly, Type passedModelType, ViewLocationResult viewLocationResult)
{
var outputAssemblyName =
Path.Combine(Path.GetTempPath(), String.Format("Temp_{0}.dll", Guid.NewGuid().ToString("N")));
var modelType =
FindModelType(razorResult.Document, passedModelType, viewRenderer.ModelCodeGenerator);
var assemblies = new List<string>
{
GetAssemblyPath(typeof(System.Runtime.CompilerServices.CallSite)),
GetAssemblyPath(typeof(IHtmlString)),
GetAssemblyPath(Assembly.GetExecutingAssembly()),
GetAssemblyPath(modelType)
};
assemblies.AddRange(AppDomainAssemblyTypeScanner.Assemblies.Select(GetAssemblyPath));
if (referencingAssembly != null)
{
assemblies.Add(GetAssemblyPath(referencingAssembly));
}
if (this.razorConfiguration != null)
{
var assemblyNames = this.razorConfiguration.GetAssemblyNames();
if (assemblyNames != null)
{
assemblies.AddRange(assemblyNames.Select(Assembly.Load).Select(GetAssemblyPath));
}
if (this.razorConfiguration.AutoIncludeModelNamespace)
{
AddModelNamespace(razorResult, modelType);
}
}
assemblies = assemblies
.Union(viewRenderer.Assemblies)
.ToList();
var compilerParameters =
new CompilerParameters(assemblies.ToArray(), outputAssemblyName);
CompilerResults results;
lock (this.compileLock)
{
results = viewRenderer.Provider.CompileAssemblyFromDom(compilerParameters, razorResult.GeneratedCode);
}
if (results.Errors.HasErrors)
{
var output = new string[results.Output.Count];
results.Output.CopyTo(output, 0);
var fullTemplateName = viewLocationResult.Location + "/" + viewLocationResult.Name + "." + viewLocationResult.Extension;
var templateLines = GetViewBodyLines(viewLocationResult);
var errors = results.Errors.OfType<CompilerError>().Where(ce => !ce.IsWarning).ToArray();
var errorMessages = BuildErrorMessages(errors);
var compilationSource = this.GetCompilationSource(viewRenderer.Provider, razorResult.GeneratedCode);
MarkErrorLines(errors, templateLines);
var lineNumber = 1;
var errorDetails = string.Format(
"Error compiling template: <strong>{0}</strong><br/><br/>Errors:<br/>{1}<br/><br/>Details:<br/>{2}<br/><br/>Compilation Source:<br/><pre><code>{3}</code></pre>",
fullTemplateName,
errorMessages,
templateLines.Aggregate((s1, s2) => s1 + "<br/>" + s2),
compilationSource.Aggregate((s1, s2) => s1 + "<br/>Line " + lineNumber++ + ":\t" + s2));
return () => new NancyRazorErrorView(errorDetails);
}
var assembly = Assembly.LoadFrom(outputAssemblyName);
if (assembly == null)
{
const string error = "Error loading template assembly";
return () => new NancyRazorErrorView(error);
}
var type = assembly.GetType("RazorOutput.RazorView");
if (type == null)
{
var error = String.Format("Could not find type RazorOutput.Template in assembly {0}", assembly.FullName);
return () => new NancyRazorErrorView(error);
}
if (Activator.CreateInstance(type) as INancyRazorView == null)
{
const string error = "Could not construct RazorOutput.Template or it does not inherit from INancyRazorView";
return () => new NancyRazorErrorView(error);
}
return () => (INancyRazorView)Activator.CreateInstance(type);
}
private void DocumentParseCompleteMainThread()
{
if (_parseData == null)
{
return;
}
ParseData parseData = _parseData;
lock (parseData)
{
_parseData.NotificationPending = false;
if (_pendingShimTextChange.HasValue && (_parseData.SourceChange.NewBuffer as IShimTextBuffer).Snapshot == (_pendingShimTextChange.Value.NewBuffer as IShimTextBuffer).Snapshot)
{
_pendingShimTextChange = null;
if (_viewBuffer != null)
{
ITextSnapshot snapshot = (_parseData.SourceChange.NewBuffer as IShimTextBuffer).Snapshot;
if (snapshot != snapshot.TextBuffer.CurrentSnapshot)
{
ReparseFile();
}
else
{
_result = _parseData.GeneratorResults;
if (!_parseData.TreeStructureChanged)
{
NotifyOnCodeGenerationComplete(null);
}
else
{
_parseData.TreeStructureChanged = false;
IEnumerable<System.Web.Razor.Parser.SyntaxTree.Span> spans = _result.Document.Flatten();
List<RazorRange> newCodeRanges = GetNewCodeRanges(spans);
NotifyOnCodeGenerationComplete(newCodeRanges);
NotifySpansChanged(spans, newCodeRanges);
if (_spanContextChanged)
{
RepairCompletionSession();
_spanContextChanged = false;
}
if (_parseData != null)
{
NotifyPossibleTrigger(_parseData.SourceChange);
}
}
}
}
}
}
}
private bool CheckCompileResults(GeneratorResults generatorResults, CompilerResults compilerResults, string templateContent, string generatedSource)
{
if (!compilerResults.Errors.HasErrors)
return true;
List<string> sourceLines = null;
Func<List<string>> generatedSourceLines = () => sourceLines ?? (sourceLines = (generatedSource ?? GenerateSourceCode(generatorResults.GeneratedCode)).Split('\n').Select(line => line.Trim()).ToList());
var contentlines = templateContent
.Split('\n')
.Select(line => line.Trim())
.ToList();
string compileExceptionMessage;
try
{
compileExceptionMessage =
string.Join(
"{0}{0}".FormatWith(Environment.NewLine),
compilerResults
.Errors
.OfType<CompilerError>()
.Where(error => !error.IsWarning)
.Select(error => "compile error at {0}{1}line {2}: {3}{1}compile error: {4}: {5}".FormatWith(error.FileName, Environment.NewLine, error.Line, (error.FileName ?? "").StartsWith(_sourceFilenamePrefix) ? contentlines[error.Line - 1] : generatedSourceLines()[error.Line - 1], error.ErrorNumber, error.ErrorText))
.ToArray()
);
}
catch
{
// on any error create a raw error message
compileExceptionMessage = string.Join(
"{0}{0}".FormatWith(Environment.NewLine),
compilerResults
.Errors
.OfType<CompilerError>()
.Where(error => !error.IsWarning)
.Select(error => error.ToString())
.ToArray());
}
throw new TemplateCompileException(compileExceptionMessage);
}
public static SyntaxTreeParserResults Parse(GeneratorResults results)
{
Node[] nodes = Traverse(results.Document).ToArray();
return new SyntaxTreeParserResults(new ReadOnlyCollection<Node>(nodes));
}
