名前¶

ExtUtils::Typemaps::OutputMap - Entry in the OUTPUT section of a typemap

概要¶

  use ExtUtils::Typemaps;
  ...
  my $output = $typemap->get_output_map('T_NV');
  my $code = $output->code();
  $output->code("...");

説明¶

Refer to ExtUtils::Typemaps for details.

メソッド¶

new¶

Requires xstype and code parameters.

code¶

Returns or sets the OUTPUT mapping code for this entry.

xstype¶

Returns the name of the XS type of the OUTPUT map.

cleaned_code¶

Returns a cleaned-up copy of the code to which certain transformations have been applied to make it more ANSI compliant.

targetable¶

This is an obscure optimization that used to live in ExtUtils::ParseXS directly.

In a nutshell, this will check whether the output code involves calling set_iv, set_uv, set_nv, set_pv or set_pvn to set the special $arg placeholder to a new value AT THE END OF THE OUTPUT CODE. If that is the case, the code is eligible for using the TARG-related macros to optimize this. Thus the name of the method: targetable.

If the optimization can not be applied, this returns undef. If it can be applied, this method returns a hash reference containing the following information:

  type:      Any of the characters i, u, n, p
  with_size: Bool indicating whether this is the sv_setpvn variant
  what:      The code that actually evaluates to the output scalar
  what_size: If "with_size", this has the string length (as code,
             not constant)

作者¶

Steffen Mueller <smueller@cpan.org>

COPYRIGHT & LICENSE¶

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

名前¶

概要¶

説明¶