PPIx::EditorTools::IntroduceTemporaryVariable.3pm

Langue: en

Version: 2009-09-19 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

PPIx::EditorTools::IntroduceTemporaryVariable - Introduces a temporary variable using PPI

SYNOPSIS

     my $munged = PPIx::EditorTools::IntroduceTemporaryVariable->new->introduce(
         code           => "use strict; BEGIN {
         $^W = 1;
 }\n\tmy $x = ( 1 + 10 / 12 ) * 2;\n\tmy $y = ( 3 + 10 / 12 ) * 2;\n",
         start_location => [ 2, 19 ], 
         end_location   => [ 2, 25 ],
         varname        => '$foo',
     );
     my $modified_code_as_string = $munged->code;
     my $location_of_new_var_declaration = $munged->element->location;

DESCRIPTION

Given a region of code within a statement, replaces all occurrences of that code with a temporary variable. Declares and initializes the temporary variable right above the statement that included the selected expression.

METHODS

new()
Constructor. Generally shouldn't be called with any arguments.
find( ppi => PPI::Document, start_location => Int, end_location => Int, varname => Str ) =item find( code => Str, start_location => Int, end_location => Int, varname => Str )
Accepts either a "PPI::Document" to process or a string containing the code (which will be converted into a "PPI::Document") to process.

Given the region of code specified by start_location and end_location, replaces that code with a temporary variable with the name given in varname (defaults to "tmp"). Declares and initializes the temporary variable right above the statement that included the selected expression.

Returns a "PPIx::EditorTools::ReturnObject" with the modified code as a string available via the "code" accessor (or as a "PPI::Document" via the "ppi" accessor), and the "PPI::Token" where the new variable is declared available via the "element" accessor.

Croaks with a ``no token'' exception if no token is found at the location. Croaks with a ``no statement'' exception if unable to find the statement.

SEE ALSO

This class inherits from "PPIx::EditorTools". Also see App::EditorTools, Padre, and PPI.

AUTHOR

Steffen Mueller "smueller@cpan.org" Mark Grimes "mgrimes@cpan.org" Copyright 2008-2009 The Padre development team as listed in Padre.pm.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5 itself.