SMOP Prelude Lexical Scope / Perl 6

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Perl 6

SMOP Prelude Lexical Scope

Differently from Perl 5, in Perl 6 packages are not always global. The lookup for a particular package name always traverses the lexical scope hierarchy (unless explicitly with the GLOBAL package upfront (or its synonym "*"). The same happens for every Perl 6 operator.

This means that on the top of the scope hierarchy there should be a special scope, that will be the ultimate root of every lexical scope and will provide the "Perl 6 Prelude" as symbols that can be subject to lexical lookup.

What does the Prelude Lexical Scope define?

Bootstrap types

SMOP::S1P::Code
SMOP::S1P::map
SMOP::S1P::for
SMOP::S1P::Array

Built-in types
Built-in operators
Built-in grammars
Built-in subs