57 lines
1.1 KiB
Perl
Executable File
57 lines
1.1 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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package S2::NodeVarDecl;
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use strict;
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use S2::Node;
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use S2::NodeNamedType;
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use vars qw($VERSION @ISA);
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$VERSION = '1.0';
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@ISA = qw(S2::Node);
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sub new {
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my ($class) = @_;
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my $node = new S2::Node;
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bless $node, $class;
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}
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sub canStart {
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my ($this, $toker) = @_;
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return $toker->peek() == $S2::TokenKeyword::VAR;
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}
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sub parse {
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my ($class, $toker) = @_;
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my $n = new S2::NodeVarDecl;
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$n->setStart($n->requireToken($toker, $S2::TokenKeyword::VAR));
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$n->addNode($n->{'nt'} = S2::NodeNamedType->parse($toker));
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return $n;
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}
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sub getType { shift->{'nt'}->getType; }
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sub getName { shift->{'nt'}->getName; }
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sub populateScope {
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my ($this, $nb) = @_; # NodeStmtBlock
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my $name = $this->{'nt'}->getName;
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my $et = $nb->getLocalVar($name);
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S2::error("Can't mask local variable '$name'") if $et;
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$nb->addLocalVar($name, $this->{'nt'}->getType());
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}
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sub asS2 {
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my ($this, $o) = @_;
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$o->write("var ");
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$this->{'nt'}->asS2($o);
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}
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sub asPerl {
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my ($this, $bp, $o) = @_;
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$o->write("my \$" . $this->{'nt'}->getName());
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}
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