role CX::Next does X::Control { }
A control exception that is triggered
when next is called.
for ^10 {
CONTROL {
when CX::Next { say "We're next" };
}
next if $_ %% 2;
say "We're in $_";
}
This will print:
We're next
We're in 1
We're next
We're in 3
We're next
We're in 5
We're next
We're in 7
We're next
We're in 9
method message()
Returns '<next control exception>'.
class X::Attribute::Undeclared
class X::Channel::ReceiveOnClosed
class X::Channel::SendOnClosed
class X::Composition::NotComposable
class X::Constructor::Positional
class X::DateTime::TimezoneClash
class X::Declaration::Scope::Multi
class X::Inheritance::NotComposed
class X::Inheritance::Unsupported
class X::Method::InvalidQualifier
class X::Method::Private::Permission
class X::Method::Private::Unqualified
class X::Numeric::CannotConvert
class X::Numeric::DivideByZero
class X::Parameter::MultipleTypeConstraints
class X::Parameter::Placeholder
class X::Parameter::WrongOrder
class X::Placeholder::Mainline
class X::Proc::Async::AlreadyStarted
class X::Proc::Async::BindOrUse
class X::Proc::Async::CharsOrBytes
class X::Proc::Async::MustBeStarted
class X::Proc::Async::OpenForWriting
class X::Proc::Async::TapBeforeSpawn
class X::Promise::CauseOnlyValidOnBroken
class X::Scheduler::CueInNaNSeconds
class X::Signature::Placeholder
class X::Syntax::Augment::WithoutMonkeyTyping
class X::Syntax::Comment::Embedded
class X::Syntax::InfixInTermPosition
class X::Syntax::Number::RadixOutOfRange
class X::Syntax::Regex::Adverb
class X::Syntax::Regex::SolitaryQuantifier
class X::Syntax::Self::WithoutObject
class X::Syntax::Signature::InvocantMarker
class X::Syntax::Term::MissingInitializer
class X::Syntax::Variable::Match
class X::Syntax::Variable::Numeric
class X::Syntax::Variable::Twigil
class X::Temporal::InvalidFormat
class X::TypeCheck::Assignment
Resoures
Learning
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