Adam Kennedy > PPI-1.215 > PPI::Statement::Variable

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Module Version: 1.215   Source   Latest Release: PPI-1.216_01

NAME ^

PPI::Statement::Variable - Variable declaration statements

SYNOPSIS ^

  # All of the following are variable declarations
  my $foo = 1;
  my ($foo, $bar) = (1, 2);
  our $foo = 1;
  local $foo;
  local $foo = 1;
  LABEL: my $foo = 1;

INHERITANCE ^

  PPI::Statement::Variable
  isa PPI::Statement::Expression
      isa PPI::Statement
          isa PPI::Node
              isa PPI::Element

DESCRIPTION ^

The main intent of the PPI::Statement::Variable class is to describe simple statements that explicitly declare new local or global variables.

Note that this does not make it exclusively the only place where variables are defined, and later on you should expect that the variables method will migrate deeper down the tree to either PPI::Statement or PPI::Node to recognise this fact, but for now it stays here.

METHODS ^

type

The type method checks and returns the declaration type of the statement, which will be one of 'my', 'local', 'our', or 'state'.

Returns a string of the type, or undef if the type cannot be detected (which is probably a bug).

variables

As for several other PDOM Element types that can declare variables, the variables method returns a list of the canonical forms of the variables defined by the statement.

Returns a list of the canonical string forms of variables, or the null list if it is unable to find any variables.

symbols

Returns a list of the variables defined by the statement, as PPI::Token::Symbols.

TO DO ^

- Write unit tests for this

SUPPORT ^

See the support section in the main module.

AUTHOR ^

Adam Kennedy <adamk@cpan.org>

COPYRIGHT ^

Copyright 2001 - 2011 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.

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