private JinjaUserDefinedFunction ConvertMacroToUserDefinedFunction(MacroNode macro)
{
var usesCaller = macro.Contents.Transform(CallerFinderVisitor.Instance).Any(x => x);
Func <UserDefinedArgumentData, object?> func = arguments =>
{
using var checkout = StringBuilderPool.Instance.Checkout();
var stringBuilder = checkout.CheckedOutObject;
Scopes.Push($"Macro: {macro.FunctionDeclaration.Name}");
foreach (var arg in arguments.AllArguments)
{
Scopes.Current.DefineAndSetVariable(arg.Name, arg.Value);
}
Scopes.Current.DefineAndSetVariable("varargs", arguments.AdditionalPositionalArguments.Select(arg => arg.Value));
Scopes.Current.DefineAndSetVariable("kwargs", arguments.AdditionalKeywordArguments);
foreach (var output in macro.Contents.Transform(this))
{
stringBuilder.Append(output);
}
Scopes.Pop($"Macro: {macro.FunctionDeclaration.Name}");
return(stringBuilder.ToString());
};
UserDefinedFunction.UserDefinedFunctionDelegate del = args => func(args);
return(new JinjaUserDefinedFunction(macro.FunctionDeclaration, del, usesCaller));
}
public IEnumerable <string> Transform(CallNode item)
{
_EncounteredOutputStyleBlock = true;
if (!(ShouldRender && _EncounteredOutputStyleBlock))
{
yield break;
}
Func <UserDefinedArgumentData, object?> func = arguments =>
{
using var checkout = StringBuilderPool.Instance.Checkout();
var stringBuilder = checkout.CheckedOutObject;
foreach (var output in item.Contents.Transform(this))
{
stringBuilder.Append(output);
}
return(stringBuilder.ToString());
};
if (Environment.Evaluation.TryParseFunctionDeclaration(item.CallerDefinition.Expression, out var functionDeclaration) == false || functionDeclaration == null)
{
throw new NotImplementedException();
}
Scopes.Push($"Call: {item.CallerDefinition.Expression}");
UserDefinedFunction.UserDefinedFunctionDelegate del = args => func(args);
Scopes.Current.DefineAndSetVariable("caller", new JinjaUserDefinedFunction(functionDeclaration, del));
var evalObj = Environment.Evaluation.EvaluateDynamic(item.MacroCall.ExpressionParserNode, ExpressionParserTransformer);
if (!(evalObj is ExpressionParser.Void))
{
yield return(JinjaCustomStringProvider.Instance.ToString(evalObj));
}
Scopes.Pop($"Call: {item.CallerDefinition.Expression}");
}
