This is an automatically generated page and cannot be edited directly. Text in Composite pages, (URLs starting with 'routine' or 'syntax') can be edited by clicking on the link labeled 'in context', and editing the text there.

Exit this popup by pressing <Escape>, or clicking on X or on the background.

&?BLOCK
Combined from primary sources listed below.

In Variables§

See primary documentation in context for &?BLOCK

The special compile variable &?BLOCK behaves similarly to &?ROUTINE but it allows to introspect a single block of code. It holds a Block and allows for recursion within the same block:

for '.' {
    .Str.say when !.IO.d;
    .IO.dir()».&?BLOCK when .IO.d # lets recurse a little! 
}