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# The various contexts in which make(1) variables can appear in pkgsrc.
# Further details can be found in the chapter ``The pkglint type system''
# of the pkglint book.
#
package PkgLint::VarUseContext;
use strict;
use warnings;
BEGIN {
import PkgLint::Util qw(
false true
);
import PkgLint::Logging qw(
log_warning NO_LINES
);
use Exporter;
use vars qw(@ISA @EXPORT_OK);
@ISA = qw(Exporter);
@EXPORT_OK = qw(
VUC_TIME_UNKNOWN VUC_TIME_LOAD VUC_TIME_RUN
VUC_TYPE_UNKNOWN
VUC_SHELLWORD_UNKNOWN VUC_SHELLWORD_PLAIN VUC_SHELLWORD_DQUOT
VUC_SHELLWORD_SQUOT VUC_SHELLWORD_BACKT VUC_SHELLWORD_FOR
VUC_EXTENT_UNKNOWN VUC_EXTENT_FULL VUC_EXTENT_WORD
VUC_EXTENT_WORD_PART
);
}
use enum qw(TIME TYPE SHELLWORD EXTENT);
use enum qw(:VUC_TIME_ UNKNOWN LOAD RUN);
use constant VUC_TYPE_UNKNOWN => undef;
use enum qw(:VUC_SHELLWORD_ UNKNOWN PLAIN DQUOT SQUOT BACKT FOR);
use enum qw(:VUC_EXTENT_ UNKNOWN FULL WORD WORD_PART);
my $pool = {};
sub new($$$$$) {
my ($class, $time, $type, $shellword, $extent) = @_;
my ($self) = ([$time, $type, $shellword, $extent]);
bless($self, $class);
return $self;
}
sub new_from_pool($$$$$) {
my ($class, $time, $type, $shellword, $extent) = @_;
my $key = "${time}-${type}-${shellword}-${extent}";
if (!exists($pool->{$key})) {
$pool->{$key} = $class->new($time, $type, $shellword, $extent);
}
return $pool->{$key};
}
sub time($) { return shift()->[TIME]; }
sub type($) { return shift()->[TYPE]; }
sub shellword($) { return shift()->[SHELLWORD]; }
sub extent($) { return shift()->[EXTENT]; }
sub to_string($) {
my ($self) = @_;
return sprintf("(%s %s %s %s)",
["unknown-time", "load-time", "run-time"]->[$self->time],
(defined($self->type) ? $self->type->to_string() : "no-type"),
["none", "plain", "squot", "dquot", "backt", "for"]->[$self->shellword],
["unknown", "full", "word", "word-part"]->[$self->extent]);
}
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