internal override Expression Bind(Expression toFormat, Type toFormatType, Expression directive, LabelTarget returnLabel)
{
int maxLabel = -1;
foreach (var entry in Entries)
{
var label = entry.Label ?? entry.PropertyName;
maxLabel = Math.Max(maxLabel, label.Length);
}
var formatExpr = "{0,-" + maxLabel + "} : {1}";
var expressions = new Expression[Entries.Count];
for (var i = 0; i < Entries.Count; i++)
{
var entry = Entries[i];
var binder = FormatGetMemberBinder.Get(entry.PropertyName);
expressions[i] = Expression.Call(FormatLineMethodInfo,
Expression.Constant(formatExpr),
Expression.Constant(entry.PropertyName),
Expression.Dynamic(binder, typeof(object), toFormat));
}
return(Expression.IfThen(
Expression.AndAlso(
Expression.TypeEqual(toFormat, toFormatType),
Expression.Call(Expression.Constant(this), ListFormatEquals, directive)),
Expression.Return(returnLabel,
Expression.NewArrayInit(typeof(string), expressions))));
}
Expression BindDescriptor(
ListDescriptor descriptor,
Expression toFormat,
Expression criteria,
LabelTarget returnLabel)
{
Expression GetPropertyBinding(ListDescriptorEntry entry)
{
switch (entry)
{
case ListDescriptorPropertyEntry ldpe:
var binder = FormatGetMemberBinder.Get(ldpe.PropertyName);
return(Expression.Dynamic(binder, typeof(object), toFormat));
case ListDescriptorComputedPropertyEntry ldcpe:
throw new NotImplementedException();
}
throw new InvalidOperationException();
}
int maxLabel = -1;
foreach (var entry in descriptor.Entries)
{
var label = entry.GetLabel();
maxLabel = Math.Max(maxLabel, label.Length);
}
var formatExpr = "{0,-" + maxLabel + "} : {1}";
var expressions = new Expression[descriptor.Entries.Count];
for (var i = 0; i < expressions.Length; i++)
{
var entry = descriptor.Entries[i];
expressions[i] = Expression.Call(GetPropertyLineFormattedResultMethodInfo,
Expression.Constant(formatExpr),
Expression.Constant(entry.GetLabel()),
GetPropertyBinding(entry));
}
return(Expression.IfThen(
SelectionCriteria.GetCompatibleCall(criteria, descriptor, toFormat),
Expression.Return(returnLabel,
Expression.NewArrayInit(typeof(FormatInstruction), expressions))));
}
Expression BindDescriptor(
TableDescriptor descriptor,
Expression toFormat,
Expression criteria,
LabelTarget returnLabel)
{
var expressions = new Expression[descriptor.Columns.Count];
for (var i = 0; i < expressions.Length; i++)
{
var col = descriptor.Columns[i];
if (col.Method != null)
{
var type = descriptor.Type;
expressions[i] = Expression.Dynamic(
ToStringBinder.Instance,
typeof(string),
Expression.TryCatch(
Expression.Call(col.Method,
Expression.Convert(
Expression.Property(
Expression.Convert(toFormat, typeof(PSObject)), "BaseObject"),
type)),
Expression.Catch(typeof(Exception), Expression.Default(col.Method.ReturnType))));
continue;
}
var binder = FormatGetMemberBinder.Get(col.Property);
expressions[i] = Expression.Dynamic(
ToStringBinder.Instance,
typeof(string),
Expression.Dynamic(binder, typeof(object), toFormat));
}
return(Expression.IfThen(
SelectionCriteria.GetCompatibleCall(criteria, descriptor, toFormat),
Expression.Return(returnLabel,
Expression.Call(NewEmitTableRowMethodInfo,
Expression.Constant(descriptor),
Expression.NewArrayInit(typeof(string), expressions)))));
}
