| ExtUtils::ParseXS::Utilities(3perl) - phpMan
ExtUtils::ParseXS::Utilities(3perPerl Programmers Reference GuExtUtils::ParseXS::Utilities(3perl)
NAME
ExtUtils::ParseXS::Utilities - Subroutines used with ExtUtils::ParseXS
SYNOPSIS
use ExtUtils::ParseXS::Utilities qw(
standard_typemap_locations
trim_whitespace
C_string
valid_proto_string
process_typemaps
map_type
standard_XS_defs
assign_func_args
analyze_preprocessor_statements
set_cond
Warn
blurt
death
check_conditional_preprocessor_statements
escape_file_for_line_directive
report_typemap_failure
);
SUBROUTINES
The following functions are not considered to be part of the public interface. They are
documented here for the benefit of future maintainers of this module.
"standard_typemap_locations()"
· Purpose
Provide a list of filepaths where typemap files may be found. The filepaths --
relative paths to files (not just directory paths) -- appear in this list in lowest-
to-highest priority.
The highest priority is to look in the current directory.
'typemap'
The second and third highest priorities are to look in the parent of the current
directory and a directory called lib/ExtUtils underneath the parent directory.
'../typemap',
'../lib/ExtUtils/typemap',
The fourth through ninth highest priorities are to look in the corresponding
grandparent, great-grandparent and great-great-grandparent directories.
'../../typemap',
'../../lib/ExtUtils/typemap',
'../../../typemap',
'../../../lib/ExtUtils/typemap',
'../../../../typemap',
'../../../../lib/ExtUtils/typemap',
The tenth and subsequent priorities are to look in directories named ExtUtils which
are subdirectories of directories found in @INC -- provided a file named typemap
actually exists in such a directory. Example:
'/usr/local/lib/perl5/5.10.1/ExtUtils/typemap',
However, these filepaths appear in the list returned by "standard_typemap_locations()"
in reverse order, i.e., lowest-to-highest.
'/usr/local/lib/perl5/5.10.1/ExtUtils/typemap',
'../../../../lib/ExtUtils/typemap',
'../../../../typemap',
'../../../lib/ExtUtils/typemap',
'../../../typemap',
'../../lib/ExtUtils/typemap',
'../../typemap',
'../lib/ExtUtils/typemap',
'../typemap',
'typemap'
· Arguments
my @stl = standard_typemap_locations( \@INC );
Reference to @INC.
· Return Value
Array holding list of directories to be searched for typemap files.
"trim_whitespace()"
· Purpose
Perform an in-place trimming of leading and trailing whitespace from the first
argument provided to the function.
· Argument
trim_whitespace($arg);
· Return Value
None. Remember: this is an in-place modification of the argument.
"C_string()"
· Purpose
Escape backslashes ("\") in prototype strings.
· Arguments
$ProtoThisXSUB = C_string($_);
String needing escaping.
· Return Value
Properly escaped string.
"valid_proto_string()"
· Purpose
Validate prototype string.
· Arguments
String needing checking.
· Return Value
Upon success, returns the same string passed as argument.
Upon failure, returns 0.
"process_typemaps()"
· Purpose
Process all typemap files.
· Arguments
my $typemaps_object = process_typemaps( $args{typemap}, $pwd );
List of two elements: "typemap" element from %args; current working directory.
· Return Value
Upon success, returns an ExtUtils::Typemaps object.
"map_type()"
· Purpose
Performs a mapping at several places inside "PARAGRAPH" loop.
· Arguments
$type = map_type($self, $type, $varname);
List of three arguments.
· Return Value
String holding augmented version of second argument.
"standard_XS_defs()"
· Purpose
Writes to the ".c" output file certain preprocessor directives and function headers
needed in all such files.
· Arguments
None.
· Return Value
Returns true.
"assign_func_args()"
· Purpose
Perform assignment to the "func_args" attribute.
· Arguments
$string = assign_func_args($self, $argsref, $class);
List of three elements. Second is an array reference; third is a string.
· Return Value
String.
"analyze_preprocessor_statements()"
· Purpose
Within each function inside each Xsub, print to the .c output file certain
preprocessor statements.
· Arguments
( $self, $XSS_work_idx, $BootCode_ref ) =
analyze_preprocessor_statements(
$self, $statement, $XSS_work_idx, $BootCode_ref
);
List of four elements.
· Return Value
Modifed values of three of the arguments passed to the function. In particular, the
"XSStack" and "InitFileCode" attributes are modified.
"set_cond()"
· Purpose
· Arguments
· Return Value
"current_line_number()"
· Purpose
Figures out the current line number in the XS file.
· Arguments
$self
· Return Value
The current line number.
"Warn()"
· Purpose
· Arguments
· Return Value
"blurt()"
· Purpose
· Arguments
· Return Value
"death()"
· Purpose
· Arguments
· Return Value
"check_conditional_preprocessor_statements()"
· Purpose
· Arguments
· Return Value
"escape_file_for_line_directive()"
· Purpose
Escapes a given code source name (typically a file name but can also be a command that
was read from) so that double-quotes and backslashes are escaped.
· Arguments
A string.
· Return Value
A string with escapes for double-quotes and backslashes.
"report_typemap_failure"
· Purpose
Do error reporting for missing typemaps.
· Arguments
The "ExtUtils::ParseXS" object.
An "ExtUtils::Typemaps" object.
The string that represents the C type that was not found in the typemap.
Optionally, the string "death" or "blurt" to choose whether the error is immediately
fatal or not. Default: "blurt"
· Return Value
Returns nothing. Depending on the arguments, this may call "death" or "blurt", the
former of which is fatal.
perl v5.20.2 2014-12-27 ExtUtils::ParseXS::Utilities(3perl)
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