PPI::Statement::Package - A package statement |
PPI::Statement::Package - A package statement
PPI::Statement::Package isa PPI::Statement isa PPI::Node isa PPI::Element
Most the PPI::Statement manpage subclasses are assigned based on the value of the
first token or word found in the statement. When PPI encounters a statement
starting with 'package', it converts it to a PPI::Statement::Package
object.
When working with package statements, please remember that packages only exist within their scope, and proper support for scoping has yet to be completed in PPI.
However, if the immediate parent of the package statement is the top level the PPI::Document manpage object, then it can be considered to define everything found until the next top-level ``file scoped'' package statement.
A file may, however, contain nested temporary package, in which case you are mostly on your own :)
PPI::Statement::Package
has a number of methods in addition to the standard
the PPI::Statement manpage, the PPI::Node manpage and the PPI::Element manpage methods.
Most package declarations are simple, and just look something like
package Foo::Bar;
The namespace
method returns the name of the declared package, in the
above case 'Foo::Bar'. It returns this exactly as written and does not
attempt to clean up or resolve things like ::Foo to main::Foo.
If the package statement is done any different way, it returns false.
Regardless of whether it is named or not, the file_scoped
method will
test to see if the package declaration is a top level ``file scoped''
statement or not, based on its location.
In general, returns true if it is a ``file scoped'' package declaration with an immediate parent of the top level Document, or false if not.
Note that if the PPI DOM tree does not have a PPI::Document object at as the root element, this will return false. Likewise, it will also return false if the root element is a the PPI::Document::Fragment manpage, as a fragment of a file does not represent a scope.
See the support section in the main module.
Adam Kennedy <adamk@cpan.org>
Copyright 2001 - 2006 Adam Kennedy.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
PPI::Statement::Package - A package statement |