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Man page of ExtUtils::ParseXS
ExtUtils::ParseXS
Section: Perl Programmers Reference Guide (3perl)
Updated: 2007-12-18
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NAME
ExtUtils::ParseXS - converts Perl XS code into C code
SYNOPSIS
use ExtUtils::ParseXS qw(process_file);
process_file( filename => 'foo.xs' );
process_file( filename => 'foo.xs',
output => 'bar.c',
'C++' => 1,
typemap => 'path/to/typemap',
hiertype => 1,
except => 1,
prototypes => 1,
versioncheck => 1,
linenumbers => 1,
optimize => 1,
prototypes => 1,
);
=head1 DESCRIPTION
"ExtUtils::ParseXS" will compile XS code into C code by embedding the constructs
necessary to let C functions manipulate Perl values and creates the glue
necessary to let Perl access those functions. The compiler uses typemaps to
determine how to map C function parameters and variables to Perl values.
The compiler will search for typemap files called typemap. It will use
the following search path to find default typemaps, with the rightmost
typemap taking precedence.
../../../typemap:../../typemap:../typemap:typemap
EXPORT
None by default. "process_file()" may be exported upon request.
FUNCTIONS
- process_xs()
-
This function processes an XS file and sends output to a C file.
Named parameters control how the processing is done. The following
parameters are accepted:
-
- C++
-
Adds "extern "C"" to the C code. Default is false.
- hiertype
-
Retains "::" in type names so that C++ hierachical types can be
mapped. Default is false.
- except
-
Adds exception handling stubs to the C code. Default is false.
- typemap
-
Indicates that a user-supplied typemap should take precedence over the
default typemaps. A single typemap may be specified as a string, or
multiple typemaps can be specified in an array reference, with the
last typemap having the highest precedence.
- prototypes
-
Generates prototype code for all xsubs. Default is false.
- versioncheck
-
Makes sure at run time that the object file (derived from the ".xs"
file) and the ".pm" files have the same version number. Default is
true.
- linenumbers
-
Adds "#line" directives to the C output so error messages will look
like they came from the original XS file. Default is true.
- optimize
-
Enables certain optimizations. The only optimization that is currently
affected is the use of targets by the output C code (see perlguts).
Not optimizing may significantly slow down the generated code, but this is the way
xsubpp of 5.005 and earlier operated. Default is to optimize.
- inout
-
Enable recognition of "IN", "OUT_LIST" and "INOUT_LIST"
declarations. Default is true.
- argtypes
-
Enable recognition of ANSI-like descriptions of function signature.
Default is true.
- s
-
I have no clue what this does. Strips function prefixes?
-
- errors()
-
This function returns the number of [a certain kind of] errors
encountered during processing of the XS file.
AUTHOR
Based on xsubpp code, written by Larry Wall.
Maintained by Ken Williams, <ken@mathforum.org>
COPYRIGHT
Copyright 2002-2003 Ken Williams. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
Based on the ExtUtils::xsubpp code by Larry Wall and the Perl 5
Porters, which was released under the same license terms.
SEE ALSO
perl, ExtUtils::xsubpp, ExtUtils::MakeMaker, perlxs, perlxstut.
Index
- NAME
-
- SYNOPSIS
-
- EXPORT
-
- FUNCTIONS
-
- AUTHOR
-
- COPYRIGHT
-
- SEE ALSO
-
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