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Diffstat (limited to 'upstream/mageia-cauldron/man3pm/TAP::Parser::IteratorFactory.3pm')
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diff --git a/upstream/mageia-cauldron/man3pm/TAP::Parser::IteratorFactory.3pm b/upstream/mageia-cauldron/man3pm/TAP::Parser::IteratorFactory.3pm new file mode 100644 index 00000000..0dbc8d6d --- /dev/null +++ b/upstream/mageia-cauldron/man3pm/TAP::Parser::IteratorFactory.3pm @@ -0,0 +1,227 @@ +.\" -*- mode: troff; coding: utf-8 -*- +.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. +.ie n \{\ +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds C` +. ds C' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is >0, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.\" +.\" Avoid warning from groff about undefined register 'F'. +.de IX +.. +.nr rF 0 +.if \n(.g .if rF .nr rF 1 +.if (\n(rF:(\n(.g==0)) \{\ +. if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. if !\nF==2 \{\ +. nr % 0 +. nr F 2 +. \} +. \} +.\} +.rr rF +.\" ======================================================================== +.\" +.IX Title "TAP::Parser::IteratorFactory 3pm" +.TH TAP::Parser::IteratorFactory 3pm 2023-11-28 "perl v5.38.2" "Perl Programmers Reference Guide" +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH NAME +TAP::Parser::IteratorFactory \- Figures out which SourceHandler objects to use for a given Source +.SH VERSION +.IX Header "VERSION" +Version 3.44 +.SH SYNOPSIS +.IX Header "SYNOPSIS" +.Vb 3 +\& use TAP::Parser::IteratorFactory; +\& my $factory = TAP::Parser::IteratorFactory\->new({ %config }); +\& my $iterator = $factory\->make_iterator( $filename ); +.Ve +.SH DESCRIPTION +.IX Header "DESCRIPTION" +This is a factory class that takes a TAP::Parser::Source and runs it through all the +registered TAP::Parser::SourceHandlers to see which one should handle the source. +.PP +If you're a plugin author, you'll be interested in how to "register_handler"s, +how "detect_source" works. +.SH METHODS +.IX Header "METHODS" +.SS "Class Methods" +.IX Subsection "Class Methods" +\fR\f(CI\*(C`new\*(C'\fR\fI\fR +.IX Subsection "new" +.PP +Creates a new factory class: +.PP +.Vb 1 +\& my $sf = TAP::Parser::IteratorFactory\->new( $config ); +.Ve +.PP +\&\f(CW$config\fR is optional. If given, sets "config" and calls "load_handlers". +.PP +\fR\f(CI\*(C`register_handler\*(C'\fR\fI\fR +.IX Subsection "register_handler" +.PP +Registers a new TAP::Parser::SourceHandler with this factory. +.PP +.Vb 1 +\& _\|_PACKAGE_\|_\->register_handler( $handler_class ); +.Ve +.PP +\fR\f(CI\*(C`handlers\*(C'\fR\fI\fR +.IX Subsection "handlers" +.PP +List of handlers that have been registered. +.SS "Instance Methods" +.IX Subsection "Instance Methods" +\fR\f(CI\*(C`config\*(C'\fR\fI\fR +.IX Subsection "config" +.PP +.Vb 2 +\& my $cfg = $sf\->config; +\& $sf\->config({ Perl => { %config } }); +.Ve +.PP +Chaining getter/setter for the configuration of the available source handlers. +This is a hashref keyed on handler class whose values contain config to be passed +onto the handlers during detection & creation. Class names may be fully qualified +or abbreviated, eg: +.PP +.Vb 3 +\& # these are equivalent +\& $sf\->config({ \*(AqTAP::Parser::SourceHandler::Perl\*(Aq => { %config } }); +\& $sf\->config({ \*(AqPerl\*(Aq => { %config } }); +.Ve +.PP +\fR\f(CI\*(C`load_handlers\*(C'\fR\fI\fR +.IX Subsection "load_handlers" +.PP +.Vb 1 +\& $sf\->load_handlers; +.Ve +.PP +Loads the handler classes defined in "config". For example, given a config: +.PP +.Vb 3 +\& $sf\->config({ +\& MySourceHandler => { some => \*(Aqconfig\*(Aq }, +\& }); +.Ve +.PP +\&\f(CW\*(C`load_handlers\*(C'\fR will attempt to load the \f(CW\*(C`MySourceHandler\*(C'\fR class by looking in +\&\f(CW@INC\fR for it in this order: +.PP +.Vb 2 +\& TAP::Parser::SourceHandler::MySourceHandler +\& MySourceHandler +.Ve +.PP +\&\f(CW\*(C`croak\*(C'\fRs on error. +.PP +\fR\f(CI\*(C`make_iterator\*(C'\fR\fI\fR +.IX Subsection "make_iterator" +.PP +.Vb 1 +\& my $iterator = $src_factory\->make_iterator( $source ); +.Ve +.PP +Given a TAP::Parser::Source, finds the most suitable TAP::Parser::SourceHandler +to use to create a TAP::Parser::Iterator (see "detect_source"). Dies on error. +.PP +\fR\f(CI\*(C`detect_source\*(C'\fR\fI\fR +.IX Subsection "detect_source" +.PP +Given a TAP::Parser::Source, detects what kind of source it is and +returns \fIone\fR TAP::Parser::SourceHandler (the most confident one). Dies +on error. +.PP +The detection algorithm works something like this: +.PP +.Vb 5 +\& for (@registered_handlers) { +\& # ask them how confident they are about handling this source +\& $confidence{$handler} = $handler\->can_handle( $source ) +\& } +\& # choose the most confident handler +.Ve +.PP +Ties are handled by choosing the first handler. +.SH SUBCLASSING +.IX Header "SUBCLASSING" +Please see "SUBCLASSING" in TAP::Parser for a subclassing overview. +.SS Example +.IX Subsection "Example" +If we've done things right, you'll probably want to write a new source, +rather than sub-classing this (see TAP::Parser::SourceHandler for that). +.PP +But in case you find the need to... +.PP +.Vb 1 +\& package MyIteratorFactory; +\& +\& use strict; +\& +\& use base \*(AqTAP::Parser::IteratorFactory\*(Aq; +\& +\& # override source detection algorithm +\& sub detect_source { +\& my ($self, $raw_source_ref, $meta) = @_; +\& # do detective work, using $meta and whatever else... +\& } +\& +\& 1; +.Ve +.SH AUTHORS +.IX Header "AUTHORS" +Steve Purkis +.SH ATTRIBUTION +.IX Header "ATTRIBUTION" +Originally ripped off from Test::Harness. +.PP +Moved out of TAP::Parser & converted to a factory class to support +extensible TAP source detective work by Steve Purkis. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +TAP::Object, +TAP::Parser, +TAP::Parser::SourceHandler, +TAP::Parser::SourceHandler::File, +TAP::Parser::SourceHandler::Perl, +TAP::Parser::SourceHandler::RawTAP, +TAP::Parser::SourceHandler::Handle, +TAP::Parser::SourceHandler::Executable |