public IExpressionNode Visit(SuperAnonymFunctionSyntaxNode arrowAnonymFunNode)
{
var outputTypeFunDefinition = arrowAnonymFunNode.OutputType.FunTypeSpecification;
if (outputTypeFunDefinition == null)
{
throw new ImpossibleException("Fun definition expected");
}
string[] argNames = null;
if (outputTypeFunDefinition.Inputs.Length == 1)
{
argNames = new[] { "it" }
}
;
else
{
argNames = new string[outputTypeFunDefinition.Inputs.Length];
for (int i = 0; i < outputTypeFunDefinition.Inputs.Length; i++)
{
argNames[i] = $"it{i + 1}";
}
}
//Prepare local variable scope
//Capture all outerscope variables
var localVariables = new VariableDictionary(_variables.GetAllSources());
var arguments = new VariableSource[argNames.Length];
for (var i = 0; i < argNames.Length; i++)
{
var arg = argNames[i];
var type = outputTypeFunDefinition.Inputs[i];
var source = VariableSource.CreateWithoutStrictTypeLabel(arg, type, false);
//collect argument
arguments[i] = source;
//add argument to local scope
//if argument with it* name already exist - replace it
localVariables.AddOrReplace(source);
}
var body = arrowAnonymFunNode.Body;
return(BuildAnonymousFunction(arrowAnonymFunNode.Interval, body, localVariables, arguments));
}