02-06-2017
I was about to ask the same as zaxxon did, as I'm surprised that none of the help given in the past seems to have fallen on fertile ground. Until a decent answer is posted, I'll withhold the "one single awk" proposal I came up with.
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extutils::typemaps::outputmap
ExtUtils::Typemaps::OutputMap(3) User Contributed Perl Documentation ExtUtils::Typemaps::OutputMap(3)
NAME
ExtUtils::Typemaps::OutputMap - Entry in the OUTPUT section of a typemap
SYNOPSIS
use ExtUtils::Typemaps;
...
my $output = $typemap->get_output_map('T_NV');
my $code = $output->code();
$output->code("...");
DESCRIPTION
Refer to ExtUtils::Typemaps for details.
METHODS
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)
SEE ALSO
ExtUtils::Typemaps
AUTHOR
Steffen Mueller "<smueller@cpan.org">
COPYRIGHT & LICENSE
Copyright 2009, 2010, 2011, 2012 Steffen Mueller
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.16.3 2012-11-19 ExtUtils::Typemaps::OutputMap(3)