protected override void Visit(LiteralCodeAttributeChunk chunk)
{
if (chunk.Value == null)
{
// TODO: This is a hack, this should really be handled at the chunk generation level
var dynamicCodeAttributeChunk = new DynamicCodeAttributeChunk
{
Children = chunk.Children,
Association = chunk.Association,
Prefix = chunk.Prefix,
Start = chunk.Start
};
Visit(dynamicCodeAttributeChunk);
return;
}
var attributePiece = new LiteralAttributePiece
{
DocumentLocation = CreateMappingLocation(chunk.Start, chunk.Association.Length),
Prefix = chunk.Prefix,
Value = chunk.Value,
};
_context.Builder.Add(attributePiece);
}
protected override void Visit(DynamicCodeAttributeChunk chunk)
{
if (Context.Host.DesignTimeMode)
{
return; // Don't generate anything!
}
Chunk code = chunk.Children.FirstOrDefault();
ExpressionRenderingMode currentRenderingMode = Context.ExpressionRenderingMode;
string currentTargetWriterName = Context.TargetWriterName;
Context.TargetWriterName = ValueWriterName;
Writer.WriteParameterSeparator()
.WriteLine();
if (code is ExpressionChunk || code is ExpressionBlockChunk)
{
Writer.WriteStartMethodInvocation("Tuple.Create")
.WriteLocationTaggedString(chunk.Prefix)
.WriteParameterSeparator()
.WriteStartMethodInvocation("Tuple.Create", new string[] { "System.Object", "System.Int32" });
Context.ExpressionRenderingMode = ExpressionRenderingMode.InjectCode;
Accept(code);
Writer.WriteParameterSeparator()
.Write(chunk.Start.AbsoluteIndex.ToString(CultureInfo.CurrentCulture))
.WriteEndMethodInvocation(false)
.WriteParameterSeparator()
.WriteBooleanLiteral(false)
.WriteEndMethodInvocation(false);
}
else
{
Writer.WriteStartMethodInvocation("Tuple.Create")
.WriteLocationTaggedString(chunk.Prefix)
.WriteParameterSeparator()
.WriteStartMethodInvocation("Tuple.Create", new string[] { "System.Object", "System.Int32" })
.WriteStartNewObject(Context.Host.GeneratedClassContext.TemplateTypeName);
using (Writer.BuildLambda(endLine: false, parameterNames: ValueWriterName))
{
Accept(chunk.Children);
}
Writer.WriteEndMethodInvocation(false)
.WriteParameterSeparator()
.Write(chunk.Start.AbsoluteIndex.ToString(CultureInfo.CurrentCulture))
.WriteEndMethodInvocation(endLine: false)
.WriteParameterSeparator()
.WriteBooleanLiteral(false)
.WriteEndMethodInvocation(false);
}
Context.TargetWriterName = currentTargetWriterName;
Context.ExpressionRenderingMode = currentRenderingMode;
}
protected override void Visit(DynamicCodeAttributeChunk chunk)
{
var value = new CSharpBlock();
using (_context.Builder.UseBlock(value))
{
Accept(chunk.Children);
}
var attributePiece = new ConditionalAttributePiece
{
DocumentLocation = CreateMappingLocation(chunk.Start, chunk.Association.Length),
Prefix = chunk.Prefix,
Value = value
};
_context.Builder.Add(attributePiece);
}
protected override void Visit(DynamicCodeAttributeChunk chunk)
{
}
protected virtual void Visit(DynamicCodeAttributeChunk chunk)
{
}
protected override void Visit(DynamicCodeAttributeChunk chunk)
{
if (Context.Host.DesignTimeMode)
{
// Render the children as is without wrapping them in calls to WriteAttribute
Accept(chunk.Children);
return;
}
var currentRenderingMode = Context.ExpressionRenderingMode;
var currentTargetWriterName = Context.TargetWriterName;
CSharpLineMappingWriter lineMappingWriter = null;
var code = chunk.Children.FirstOrDefault();
if (code is ExpressionChunk || code is ExpressionBlockChunk)
{
// We only want to render the #line pragma if the attribute value will be in-lined.
// Ex: WriteAttributeValue("", 0, DateTime.Now, 0, 0, false)
// For non-inlined scenarios: WriteAttributeValue("", 0, (_) => ..., 0, 0, false)
// the line pragma will be generated inside the lambda.
lineMappingWriter = new CSharpLineMappingWriter(Writer, chunk.Start, Context.SourceFile);
}
if (!string.IsNullOrEmpty(currentTargetWriterName))
{
Writer.WriteStartMethodInvocation(Context.Host.GeneratedClassContext.WriteAttributeValueToMethodName)
.Write(currentTargetWriterName)
.WriteParameterSeparator();
}
else
{
Writer.WriteStartMethodInvocation(WriteAttributeValueMethodName);
}
Context.TargetWriterName = ValueWriterName;
if (code is ExpressionChunk || code is ExpressionBlockChunk)
{
Debug.Assert(lineMappingWriter != null);
Writer
.WriteLocationTaggedString(chunk.Prefix)
.WriteParameterSeparator();
Context.ExpressionRenderingMode = ExpressionRenderingMode.InjectCode;
Accept(code);
Writer
.WriteParameterSeparator()
.Write(chunk.Start.AbsoluteIndex.ToString(CultureInfo.InvariantCulture))
.WriteParameterSeparator()
.Write(chunk.Association.Length.ToString(CultureInfo.InvariantCulture))
.WriteParameterSeparator()
.WriteBooleanLiteral(value: false)
.WriteEndMethodInvocation();
lineMappingWriter.Dispose();
}
else
{
Writer
.WriteLocationTaggedString(chunk.Prefix)
.WriteParameterSeparator()
.WriteStartNewObject(Context.Host.GeneratedClassContext.TemplateTypeName);
using (Writer.BuildAsyncLambda(endLine: false, parameterNames: ValueWriterName))
{
Accept(chunk.Children);
}
Writer
.WriteEndMethodInvocation(false)
.WriteParameterSeparator()
.Write(chunk.Start.AbsoluteIndex.ToString(CultureInfo.InvariantCulture))
.WriteParameterSeparator()
.Write(chunk.Association.Length.ToString(CultureInfo.InvariantCulture))
.WriteParameterSeparator()
.WriteBooleanLiteral(false)
.WriteEndMethodInvocation();
}
Context.TargetWriterName = currentTargetWriterName;
Context.ExpressionRenderingMode = currentRenderingMode;
}
protected abstract void Visit(DynamicCodeAttributeChunk chunk);
