BoundFor

class

csharp

public record class BoundFor

An @for.

No guide page documents this yet — the page shows what the code says about itself.

Fields and properties (8)

public string Variable
The loop variable's name.
public BoundExpression Sequence
The C# that produces the items.
public BoundExpression? Key
The body's key expression, if its root element carries one.
public ImmutableArray<BoundNode> Body
What each item builds.
public string? Index
The name bound to the row's position, or null when the loop declares none. ⚠ It arrives in the body as a Signal<int> and not as an int, which is the whole of the feature rather than an implementation note. BuildContext.For reuses a surviving key's region and never re-runs its body, so a position captured by a lambda is the position that row had when its key first appeared — right until anything moves, and silently wrong afterwards. A signal the reconciler writes on each pass is re-read by whatever in the body read it, and a row that did not move costs an equality check.
public int? ExitAfter
How long a removed row is kept, in whole milliseconds, or null to remove it at once.
public string? ExitClass
The class a leaving row wears, or null to take ExitSpec's own default.
public ImmutableArray<BoundNode> Empty
The @empty arm's content; empty when the loop declares none.

public BoundFor(string Variable, BoundExpression Sequence, BoundExpression? Key, ImmutableArray<BoundNode> Body, string? Index = null)
An @for.