perl6/doc/lib/X/Syntax/Obsolete

(title)  role X::Syntax::Obsolete

    role X::Syntax::Obsolete does X::Syntax { }

Syntax error thrown when obsolete (mostly Perl 5) syntax is detected. For example

    new Array;

dies with

    ===SORRY!===
    Unsupported use of C++ constructor syntax; in Perl 6 please use method call syntax

Methods

(head2)  old

    method old() returns Str:D

Returns a textual description of the obsolete syntax construct

(head2)  replacement

    method replacement() returns Str:D

Describes what to use instead of the obsolete syntax.

(head2)  when

    method when() returns Str:D

Returns a string describing the state of the language (usually " in Perl 6" ).