public void WriteSection(CodeRenderingContext context, SectionIntermediateNode node)
{
// Quirk Alert!
//
// In 1.0.0 Razor/MVC the define section method took a parameter for a TextWriter
// that would be used for all of the output in the section. We simplified this API for
// 2.0.0 of MVC, but our design time codegen still needs to target 1.0.0.
//
// So the workaround is MVC 2.0.0 will define these methods with the TextWriter, but
// that method is never called. We still generate the call *with* the TextWriter for
// design time, at least until we have multi-targeting.
var writerName = context.Options.DesignTime ? DefaultWriterName : string.Empty;
context.CodeWriter
.WriteStartMethodInvocation(SectionMethodName)
.Write("\"")
.Write(node.SectionName)
.Write("\", ");
using (context.CodeWriter.BuildAsyncLambda(writerName))
{
context.RenderChildren(node);
}
context.CodeWriter.WriteEndMethodInvocation(endLine: true);
}
public void WriteSection(CodeRenderingContext context, SectionIntermediateNode node)
{
context.CodeWriter
.WriteStartMethodInvocation(SectionMethodName)
.Write("\"")
.Write(node.SectionName)
.Write("\", ");
if (context.Options.DesignTime)
{
using (context.CodeWriter.BuildAsyncLambda(DefaultWriterName))
{
context.RenderChildren(node);
}
}
else
{
using (context.CodeWriter.BuildAsyncLambda())
{
context.RenderChildren(node);
}
}
context.CodeWriter.WriteEndMethodInvocation(endLine: true);
}
public void WriteSection_WritesSectionCode_DesignTime()
{
// Arrange
var node = new SectionIntermediateNode()
{
Children =
{
new CSharpExpressionIntermediateNode(),
},
SectionName = "MySection"
};
var extension = new LegacySectionTargetExtension()
{
SectionMethodName = "CreateSection"
};
var context = TestCodeRenderingContext.CreateDesignTime();
// Act
extension.WriteSection(context, node);
// Assert
var expected = @"CreateSection(""MySection"", async(__razor_section_writer) => {
Render Children
}
);
";
var output = context.CodeWriter.GenerateCode();
Assert.Equal(expected, output, ignoreLineEndingDifferences: true);
}
public void WriteSection_WritesSectionCode()
{
// Arrange
var node = new SectionIntermediateNode()
{
Children =
{
new CSharpExpressionIntermediateNode(),
},
SectionName = "MySection"
};
var extension = new SectionTargetExtension()
{
SectionMethodName = "CreateSection"
};
var context = TestCodeRenderingContext.CreateRuntime();
// Act
extension.WriteSection(context, node);
// Assert
var expected = @"CreateSection(""MySection"", async() => {
Render Children
}
);
";
var output = context.CodeWriter.GenerateCode();
Assert.Equal(expected, output);
}
protected override void ExecuteCore(RazorCodeDocument codeDocument, DocumentIntermediateNode documentNode)
{
var @class = documentNode.FindPrimaryClass();
if (@class == null)
{
return;
}
foreach (var directive in documentNode.FindDirectiveReferences(SectionDirective.Directive))
{
var sectionName = ((DirectiveIntermediateNode)directive.Node).Tokens.FirstOrDefault()?.Content;
var section = new SectionIntermediateNode()
{
SectionName = sectionName,
};
var i = 0;
for (; i < directive.Node.Children.Count; i++)
{
if (!(directive.Node.Children[i] is DirectiveTokenIntermediateNode))
{
break;
}
}
while (i != directive.Node.Children.Count)
{
// Move non-token children over to the section node so we don't have double references to children nodes.
section.Children.Add(directive.Node.Children[i]);
directive.Node.Children.RemoveAt(i);
}
directive.InsertAfter(section);
}
}
