internal static TemplateDelegate CompileView(ViewReaderFactory readerFactoryFactory, string templatePath, CompilationContext compilationContext)
{
var configuration = compilationContext.Configuration;
IEnumerable <object> tokens;
using (var sr = readerFactoryFactory(configuration, templatePath))
{
using (var reader = new ExtendedStringReader(sr))
{
tokens = Tokenizer.Tokenize(reader).ToArray();
}
}
var layoutToken = tokens.OfType <LayoutToken>().SingleOrDefault();
var expressions = ExpressionBuilder.ConvertTokensToExpressions(tokens, configuration);
var compiledView = FunctionBuilder.Compile(expressions, compilationContext);
if (layoutToken == null)
{
return(compiledView);
}
var fs = configuration.FileSystem;
var layoutPath = fs.Closest(templatePath, layoutToken.Value + ".hbs");
if (layoutPath == null)
{
throw new InvalidOperationException($"Cannot find layout '{layoutToken.Value}' for template '{templatePath}'");
}
var compiledLayout = CompileView(readerFactoryFactory, layoutPath, new CompilationContext(compilationContext));
return((in EncodedTextWriter writer, BindingContext context) =>
{
var config = context.Configuration;
using var bindingContext = BindingContext.Create(config, null);
foreach (var pair in context.ContextDataObject)
{
switch (pair.Key.WellKnownVariable)
{
case WellKnownVariable.Parent:
case WellKnownVariable.Root:
continue;
}
bindingContext.ContextDataObject[pair.Key] = pair.Value;
}
using var innerWriter = ReusableStringWriter.Get(config.FormatProvider);
using var textWriter = new EncodedTextWriter(innerWriter, config.TextEncoder, FormatterProvider.Current, true);
compiledView(textWriter, context);
var inner = innerWriter.ToString();
var viewModel = new LayoutViewModel(inner, context.Value);
bindingContext.Value = viewModel;
compiledLayout(writer, bindingContext);
});
/// <summary>
/// Renders the <see cref="T:log4net.Core.LoggingEvent" /> to a string.
/// </summary>
/// <param name="loggingEvent">The event to render.</param>
/// <returns>The event rendered as a string.</returns>
/// <remarks>
/// <para>
/// Helper method to render a <see cref="T:log4net.Core.LoggingEvent" /> to
/// a string. This appender must have a <see cref="P:log4net.Appender.AppenderSkeleton.Layout" />
/// set to render the <paramref name="loggingEvent" /> to
/// a string.
/// </para>
/// <para>If there is exception data in the logging event and
/// the layout does not process the exception, this method
/// will append the exception text to the rendered string.
/// </para>
/// <para>
/// Where possible use the alternative version of this method
/// <see cref="M:RenderLoggingEvent(TextWriter,LoggingEvent)" />.
/// That method streams the rendering onto an existing Writer
/// which can give better performance if the caller already has
/// a <see cref="T:System.IO.TextWriter" /> open and ready for writing.
/// </para>
/// </remarks>
protected string RenderLoggingEvent(LoggingEvent loggingEvent)
{
if (m_renderWriter == null)
{
m_renderWriter = new ReusableStringWriter(CultureInfo.InvariantCulture);
}
lock (m_renderWriter)
{
m_renderWriter.Reset(1024, 256);
RenderLoggingEvent(m_renderWriter, loggingEvent);
return(m_renderWriter.ToString());
}
}
/// <summary>
/// Renders the <see cref="LoggingEvent"/> to a string.
/// </summary>
/// <param name="loggingEvent">The event to render.</param>
/// <returns>The event rendered as a string.</returns>
/// <remarks>
/// <para>
/// Helper method to render a <see cref="LoggingEvent"/> to
/// a string. This appender must have a <see cref="Layout"/>
/// set to render the <paramref name="loggingEvent"/> to
/// a string.
/// </para>
/// <para>If there is exception data in the logging event and
/// the layout does not process the exception, this method
/// will append the exception text to the rendered string.
/// </para>
/// <para>
/// Where possible use the alternative version of this method
/// <see cref="RenderLoggingEvent(TextWriter,LoggingEvent)"/>.
/// That method streams the rendering onto an existing Writer
/// which can give better performance if the caller already has
/// a <see cref="TextWriter"/> open and ready for writing.
/// </para>
/// </remarks>
protected string RenderLoggingEvent(LoggingEvent loggingEvent)
{
// Create the render writer on first use
if (m_renderWriter == null)
{
m_renderWriter = new ReusableStringWriter(System.Globalization.CultureInfo.InvariantCulture);
}
// Reset the writer so we can reuse it
m_renderWriter.Reset(c_renderBufferMaxCapacity, c_renderBufferSize);
RenderLoggingEvent(m_renderWriter, loggingEvent);
return(m_renderWriter.ToString());
}
internal static TemplateDelegate CompileView(ViewReaderFactory readerFactoryFactory, string templatePath, CompilationContext compilationContext)
{
var configuration = compilationContext.Configuration;
IEnumerable <object> tokens;
using (var sr = readerFactoryFactory(configuration, templatePath))
{
using (var reader = new ExtendedStringReader(sr))
{
tokens = Tokenizer.Tokenize(reader).ToArray();
}
}
var layoutToken = tokens.OfType <LayoutToken>().SingleOrDefault();
var expressions = ExpressionBuilder.ConvertTokensToExpressions(tokens, configuration);
var compiledView = FunctionBuilder.Compile(expressions, compilationContext);
if (layoutToken == null)
{
return(compiledView);
}
var fs = configuration.FileSystem;
var layoutPath = fs.Closest(templatePath, layoutToken.Value + ".hbs");
if (layoutPath == null)
{
throw new InvalidOperationException($"Cannot find layout '{layoutToken.Value}' for template '{templatePath}'");
}
var compiledLayout = CompileView(readerFactoryFactory, layoutPath, new CompilationContext(compilationContext));
return((in EncodedTextWriter writer, BindingContext context) =>
{
var config = context.Configuration;
using var innerWriter = ReusableStringWriter.Get(config.FormatProvider);
using var textWriter = new EncodedTextWriter(innerWriter, config.TextEncoder, config.UnresolvedBindingFormatter, true);
compiledView(textWriter, context);
var inner = innerWriter.ToString();
var vmContext = new [] { new { body = inner }, context.Value };
var viewModel = new DynamicViewModel(vmContext);
using var bindingContext = BindingContext.Create(config, viewModel);
compiledLayout(writer, bindingContext);
});
internal static Action <TextWriter, object> CompileView(ViewReaderFactory readerFactoryFactory, string templatePath, ICompiledHandlebarsConfiguration configuration)
{
IEnumerable <object> tokens;
using (var sr = readerFactoryFactory(configuration, templatePath))
{
using (var reader = new ExtendedStringReader(sr))
{
tokens = Tokenizer.Tokenize(reader).ToList();
}
}
var layoutToken = tokens.OfType <LayoutToken>().SingleOrDefault();
var expressionBuilder = new ExpressionBuilder(configuration);
var expressions = expressionBuilder.ConvertTokensToExpressions(tokens);
var compiledView = FunctionBuilder.Compile(expressions, configuration, templatePath);
if (layoutToken == null)
{
return(compiledView);
}
var fs = configuration.FileSystem;
var layoutPath = fs.Closest(templatePath, layoutToken.Value + ".hbs");
if (layoutPath == null)
{
throw new InvalidOperationException("Cannot find layout '" + layoutPath + "' for template '" +
templatePath + "'");
}
var compiledLayout = CompileView(readerFactoryFactory, layoutPath, configuration);
return((tw, vm) =>
{
string inner;
using (var innerWriter = ReusableStringWriter.Get(configuration.FormatProvider))
{
compiledView(innerWriter, vm);
inner = innerWriter.ToString();
}
compiledLayout(tw, new DynamicViewModel(new[] { new { body = inner }, vm }));
});
}
internal sealed override object ReturnInvoke(BindingContext bindingContext, object context, object[] arguments)
{
using var writer = ReusableStringWriter.Get(bindingContext.Configuration.FormatProvider);
WriteInvoke(bindingContext, writer, context, arguments);
return(writer.ToString());
}
