public ImmutableHashSet <object> VisitZenListAddFrontExpr <T>(ZenListAddFrontExpr <T> expression, Unit parameter)
{
return(LookupOrCompute(expression, () =>
{
var x = expression.Element.Accept(this, parameter);
var y = expression.Expr.Accept(this, parameter);
return x.Union(y);
}));
}
public Expression VisitZenListAddFrontExpr <T>(ZenListAddFrontExpr <T> expression, ExpressionConverterEnvironment parameter)
{
return(LookupOrCompute(expression, () =>
{
var method = typeof(ImmutableList <T>).GetMethodCached("Insert");
var list = expression.Expr.Accept(this, parameter);
var toImmutableListMethod = typeof(CommonUtilities)
.GetMethodCached("ToImmutableList")
.MakeGenericMethod(typeof(T));
var immutableListExpr = Expression.Call(null, toImmutableListMethod, list);
var element = expression.Element.Accept(this, parameter);
return Expression.Call(immutableListExpr, method, Expression.Constant(0), element);
}));
}
