async public Task WriteToAsync(IAsyncWriter Stream, String TemplateName, Dictionary<string, object> Scope = null)
{
var TemplateCode = await GetTemplateCodeByFileAsync(TemplateName);
var TextWriter = new NodeTextWriter(Stream);
var TemplateContext = new TemplateContext(TextWriter, TemplateFactory, new TemplateScope(Scope));
await TemplateCode.RenderAsync(TemplateContext);
await TextWriter.FlushAsync();
}
protected void Autoescape(TemplateContext Context, dynamic Expression, EmptyDelegate Block)
{
bool OldAutoescape = Context.Autoescape;
Context.Autoescape = Expression;
{
Block();
}
Context.Autoescape = OldAutoescape;
}
public void Render(TemplateContext Context)
{
Context.RenderingTemplate = this;
try
{
this.LocalRender(Context);
}
catch (FinalizeRenderException)
{
}
catch (Exception Exception)
{
Context.Output.WriteLine(Exception);
}
}
public void Render(TemplateContext Context)
{
Context.RenderingTemplate = this;
Exception ProducedException = null;
try
{
this.LocalRender(Context);
}
catch (FinalizeRenderException)
{
}
catch (Exception Exception)
{
ProducedException = Exception;
}
if (ProducedException != null)
{
Context.Output.WriteLine(ProducedException.ToString());
//throw (ProducedException);
}
}
/*
async virtual protected Task LocalRenderAsync(TemplateContext Context)
{
}
*/
/*
async public Task RenderAsync(TemplateContext Context)
{
}
*/
async public Task RenderAsync(TemplateContext Context)
{
Context.RenderingTemplate = this;
Exception ProducedException = null;
try
{
await this.LocalRenderAsync(Context);
}
catch (FinalizeRenderException)
{
}
catch (Exception Exception)
{
ProducedException = Exception;
}
if (ProducedException != null)
{
await Context.Output.WriteLineAsync(ProducedException.ToString());
//throw (ProducedException);
}
}
protected override Task LocalRenderAsync(TemplateContext Context)
{
throw new NotImplementedException();
}
protected void CallParentBlock(String BlockName, TemplateContext Context)
{
this.ParentTemplate.GetFirstAscendingBlock(BlockName)(Context);
}
async protected Task CallBlockAsync(String BlockName, TemplateContext Context)
{
await Context.RenderingTemplate.GetFirstAscendingBlock(BlockName)(Context);
}
protected void SetAndRenderParentTemplate(String ParentTemplateFileName, TemplateContext Context)
{
this.ParentTemplate = Context.TemplateFactory.GetTemplateCodeByFile(ParentTemplateFileName);
this.ParentTemplate.ChildTemplate = this;
#if NET_4_5
this.ParentTemplate.LocalRenderAsync(Context);
#else
this.ParentTemplate.LocalRender(Context);
#endif
throw (new FinalizeRenderException());
}
protected abstract void LocalRender(TemplateContext Context);
/*
* async protected virtual Task LocalRenderAsync(TemplateContext Context)
* {
* }
*/
/*
* public async Task RenderAsync(TemplateContext Context)
* {
* }
*/
#if NET_4_5
protected abstract Task LocalRenderAsync(TemplateContext Context);
protected void CallParentBlock(String BlockName, TemplateContext Context)
{
this.ParentTemplate.GetFirstAscendingBlock(BlockName)(Context);
}
protected void CallBlock(String BlockName, TemplateContext Context)
{
Context.RenderingTemplate.GetFirstAscendingBlock(BlockName)(Context);
}
async protected Task CallBlockAsync(String BlockName, TemplateContext Context)
{
await Context.RenderingTemplate.GetFirstAscendingBlock(BlockName)(Context);
}
async protected Task ForeachAsync(TemplateContext Context, String VarName, dynamic Expression, EmptyDelegate Iteration, EmptyDelegate Else = null)
{
int Index = 0;
foreach (var Item in DynamicUtils.ConvertToIEnumerable(Expression))
{
Context.SetVar("loop", new Dictionary<String, dynamic> {
{ "index", Index + 1 },
{ "index0", Index },
});
Context.SetVar(VarName, Item);
await Iteration();
Index++;
}
if (Index == 0)
{
if (Else != null) await Else();
}
}
protected void CallBlock(String BlockName, TemplateContext Context)
{
Context.RenderingTemplate.GetFirstAscendingBlock(BlockName)(Context);
}
abstract protected Task LocalRenderAsync(TemplateContext Context);
protected abstract void LocalRender(TemplateContext Context);
async protected Task SetAndRenderParentTemplateAsync(String ParentTemplateFileName, TemplateContext Context)
{
this.ParentTemplate = await Context.TemplateFactory.GetTemplateCodeByFileAsync(ParentTemplateFileName);
this.ParentTemplate.ChildTemplate = this;
await this.ParentTemplate.LocalRenderAsync(Context);
throw (new FinalizeRenderException());
}
protected virtual void LocalRender(TemplateContext Context)
{
}