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Decl.pm
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Decl.pm
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use strict;
use warnings;
use 5.010;
use CgOp;
{
package Decl;
use Moose;
has zyg => (is => 'ro', isa => 'ArrayRef', default => sub { [] });
sub used_slots { () }
sub preinit_code { CgOp::noop }
sub enter_code { CgOp::noop }
sub outer_decls {}
sub bodies {}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::PreInit;
use Moose;
extends 'Decl';
has var => (isa => 'Str', is => 'ro', predicate => 'has_var');
has code => (isa => 'Body', is => 'ro', required => 1);
sub bodies { $_[0]->code }
sub used_slots {
my ($self) = @_;
$self->has_var ? ($self->var, 'Variable') : ();
}
sub preinit_code {
my ($self, $body) = @_;
my $c = CgOp::subcall(CgOp::protosub($self->code));
$self->has_var ? CgOp::proto_var($self->var, $c) : CgOp::sink($c);
}
sub enter_code {
my ($self, $body) = @_;
!$self->has_var ? CgOp::noop :
CgOp::share_lex($self->var);
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Sub;
use Moose;
extends 'Decl';
has var => (isa => 'Str', is => 'ro', required => 1);
has class => (isa => 'Str', is => 'ro', default => 'Sub');
has code => (isa => 'Body', is => 'ro', required => 1);
sub bodies { $_[0]->code }
sub used_slots {
$_[0]->var, 'Variable';
}
sub preinit_code {
my ($self, $body) = @_;
if ($self->class eq 'Sub') {
CgOp::proto_var($self->var, CgOp::newscalar(
CgOp::protosub($self->code)));
} else {
# TODO: More direct support
CgOp::proto_var($self->var,
CgOp::methodcall(
CgOp::scopedlex($self->class), 'bless',
CgOp::newscalar(CgOp::protosub($self->code))));
}
}
sub enter_code {
my ($self, $body) = @_;
$body->mainline ?
CgOp::share_lex($self->var) :
CgOp::clone_lex($self->var);
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::SimpleVar;
use Moose;
extends 'Decl';
has slot => (isa => 'Str', is => 'ro', required => 1);
has list => (isa => 'Bool', is => 'ro', default => 0);
has shared => (isa => 'Bool', is => 'ro', default => 0);
has zeroinit => (isa => 'Bool', is => 'ro', default => 0);
has noenter => (isa => 'Bool', is => 'ro', default => 0);
sub used_slots {
$_[0]->slot, 'Variable';
}
sub preinit_code {
my ($self, $body) = @_;
if ($self->zeroinit) {
CgOp::proto_var($self->slot, CgOp::newrwscalar(CgOp::null('IP6')));
} elsif ($self->list) {
CgOp::proto_var($self->slot, CgOp::newblanklist);
} else {
CgOp::proto_var($self->slot,
CgOp::newrwscalar(CgOp::fetch(CgOp::scopedlex('Any'))));
}
}
sub enter_code {
my ($self, $body) = @_;
return CgOp::noop if $self->noenter;
($body->mainline || $self->shared) ?
CgOp::share_lex($self->slot) :
CgOp::scopedlex($self->slot, $self->list ? CgOp::newblanklist :
CgOp::newrwscalar(CgOp::fetch(CgOp::scopedlex('Any'))));
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
# only use this for classes &c which have no meaningful commoning behavior
{
package Decl::PackageAlias;
use Moose;
extends 'Decl';
has slot => (isa => 'Str', is => 'ro', required => 1);
has path => (isa => 'ArrayRef[Str]', is => 'ro',
default => sub { ['OUR'] });
has name => (isa => 'Str', is => 'ro', required => 1);
sub used_slots { }
sub preinit_code {
my ($self, $body) = @_;
CgOp::bind(1, $body->lookup_var($self->name, @{ $self->path }),
CgOp::scopedlex($self->slot));
}
sub enter_code { }
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::OurAlias;
use Moose;
extends 'Decl';
has slot => (isa => 'Str', is => 'ro', required => 1);
has path => (isa => 'ArrayRef[Str]', is => 'ro',
default => sub { ['OUR'] });
has name => (isa => 'Str', is => 'ro', required => 1);
sub used_slots { $_[0]->slot, 'Variable' }
sub preinit_code {
my ($self, $body) = @_;
CgOp::proto_var($self->slot,
$body->lookup_var($self->name, @{ $self->path }));
}
sub enter_code {
my ($self, $body) = @_;
CgOp::share_lex($self->slot);
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::StateVar;
use Moose;
extends 'Decl';
has slot => (isa => 'Str', is => 'ro', required => 0);
has backing => (isa => 'Str', is => 'ro', required => 1);
has list => (isa => 'Bool', is => 'ro', default => 0);
sub used_slots {
$_[0]->slot ? ($_[0]->slot, 'Variable') : ();
}
sub outer_decls {
my $self = shift;
Decl::SimpleVar->new(slot => $self->backing, list => $self->list);
}
sub preinit_code {
my ($self, $body) = @_;
$self->slot ?
CgOp::proto_var($self->slot, CgOp::scopedlex($self->backing)) :
CgOp::noop;
}
sub enter_code {
my ($self, $body) = @_;
$self->slot ?
CgOp::scopedlex($self->slot, CgOp::scopedlex($self->backing)) :
CgOp::noop;
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::SaveEnv;
use Moose;
extends 'Decl';
has unitname => (isa => 'Str', is => 'ro', required => 1);
sub preinit_code {
my ($self, $body) = @_;
$::SETTING_RESUME = $body->scopetree;
my $n = $self->unitname;
$n =~ s/::/./g;
CgOp::rawsset($n . '.Environment', CgOp::letvar('protopad'));
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Package;
use Moose;
extends 'Decl';
has var => (is => 'ro', isa => 'Str', required => 1);
has body => (is => 'ro', isa => 'Body');
has bodyvar => (is => 'ro', isa => 'Str');
has stub => (is => 'ro', isa => 'Bool', default => 0);
has name => (is => 'ro', isa => 'Str', predicate => 'has_name');
# my packages always have a unique stash, our ones just alias part of GLOBAL
has ourpkg => (is => 'ro', isa => 'Maybe[ArrayRef[Str]]');
sub bodies { $_[0]->body ? $_[0]->body : () }
sub stashvar { $_[0]->var . '::' }
sub used_slots {
my ($self) = @_;
$self->var, 'Variable', $self->stashvar,
'Variable', (!$self->stub ? ($self->bodyvar, 'Variable') : ());
}
sub make_how { CgOp::newscalar(CgOp::null('IP6')); }
sub finish_obj { CgOp::noop; }
sub preinit_code {
my ($self, $body) = @_;
if ($self->stub) {
return CgOp::prog(
CgOp::proto_var($self->var, CgOp::newscalar(CgOp::null('IP6'))),
CgOp::proto_var($self->stashvar,
($self->ourpkg ? $body->lookup_pkg(@{ $self->ourpkg }, $self->name . "::") :
CgOp::wrap(CgOp::rawnew('Dictionary<string,Variable>')))));
}
CgOp::letn("pkg",
($self->ourpkg ?
$body->lookup_pkg(@{ $self->ourpkg }, $self->name . "::") :
CgOp::wrap(CgOp::rawnew('Dictionary<string,Variable>'))),
CgOp::letn("how", $self->make_how,
# catch usages before the closing brace
CgOp::proto_var($self->var, CgOp::newscalar(CgOp::null('IP6'))),
CgOp::proto_var($self->var . "::", CgOp::letvar("pkg")),
CgOp::proto_var($self->bodyvar,
CgOp::newscalar(
CgOp::protosub($self->body))),
$self->finish_obj($body)));
}
sub enter_code {
my ($self, $body) = @_;
CgOp::prog(
CgOp::share_lex($self->var),
CgOp::share_lex($self->var . "::"),
($self->stub ? () :
($body->mainline ?
CgOp::share_lex($self->bodyvar) :
CgOp::clone_lex($self->bodyvar))));
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Module;
use Moose;
extends 'Decl::Package';
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Class;
use Moose;
extends 'Decl::Module';
sub make_how {
my ($self) = @_;
CgOp::methodcall(CgOp::scopedlex("ClassHOW"), "new",
CgOp::string_var($self->name // 'ANON'));
}
sub defsuper { 'Any' }
sub finish_obj {
my ($self, $body) = @_;
my @r;
if (!grep { $_->isa('Decl::Super') } @{ $self->body->decls }) {
push @r, CgOp::sink(CgOp::methodcall(CgOp::letvar("how"),
"add-super", CgOp::scopedlex($self->defsuper)));
}
push @r, CgOp::scopedlex($self->var,
CgOp::methodcall(CgOp::letvar("how"), "create-protoobject"));
push @r, CgOp::bind(1, $body->lookup_pkg(@{ $self->ourpkg },
$self->name), CgOp::scopedlex($self->var)) if $self->ourpkg;
@r;
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Grammar;
use Moose;
extends 'Decl::Class';
sub defsuper { 'Grammar' }
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::HasMethod;
use Moose;
extends 'Decl';
has name => (is => 'ro', isa => 'Str', required => 1);
has var => (is => 'ro', isa => 'Str', required => 1);
sub preinit_code {
my ($self, $body) = @_;
if ($body->type !~ /class|grammar|role/) {
#TODO: Make this a sorry.
die "Tried to set a method outside a class!";
}
CgOp::sink(
CgOp::methodcall(CgOp::letvar("how"), "add-method",
CgOp::string_var($self->name), CgOp::scopedlex($self->var)));
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Super;
use Moose;
extends 'Decl';
has name => (is => 'ro', isa => 'Str', required => 1);
sub preinit_code {
my ($self, $body) = @_;
if ($body->type ne 'class' && $body->type ne 'grammar' &&
$body->type ne 'role') {
#TODO: Make this a sorry.
die "Tried to set a superclass outside an initial class!";
}
CgOp::sink(
CgOp::methodcall(CgOp::letvar('how'), "add-super",
CgOp::scopedlex($self->name)));
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Attribute;
use Moose;
extends 'Decl';
has name => (is => 'ro', isa => 'Str', required => 1);
sub preinit_code {
my ($self, $body) = @_;
if ($body->type ne 'class' && $body->type ne 'grammar' &&
$body->type ne 'role') {
#TODO: Make this a sorry.
die "Tried to set an attribute outside a class!";
}
CgOp::sink(
CgOp::methodcall(CgOp::letvar('how'), "add-attribute",
CgOp::string_var($self->name)));
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Hint;
use Moose;
extends 'Decl';
has name => (is => 'ro', isa => 'Str', required => 1);
has value => (is => 'ro', isa => 'CgOp', required => 1);
sub used_slots { $_[0]->name, 'Variable' }
sub preinit_code {
my ($self, $body) = @_;
CgOp::proto_var($self->name, $self->value);
}
sub enter_code {
my ($self, $body) = @_;
CgOp::share_lex($self->name);
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
{
package Decl::Use;
use Moose;
extends 'Decl';
has unit => (is => 'ro', isa => 'Str', required => 1);
has symbols => (isa => 'HashRef[ArrayRef[Str]]', is => 'ro', required => 1);
sub used_slots {
my ($self) = @_;
map { $_, 'Variable' } sort keys %{ $self->symbols };
}
sub preinit_code {
my ($self, $body) = @_;
CodeGen->know_module($self->unit);
CgOp::let(CgOp::prog(
CgOp::rawscall($self->unit . '.Initialize'),
CgOp::getfield('lex',
CgOp::rawsget($self->unit . '.Environment'))),
sub {
my $lex = shift;
CgOp::prog(map {
my @path = @{ $self->symbols->{$_} };
my $first = CgOp::cast('Variable',
CgOp::getindex(shift(@path), $lex));
for (@path) {
$first = CgOp::rawscall('Kernel.PackageLookup',
CgOp::fetch($first), CgOp::clr_string($_));
}
CgOp::prog(
CgOp::proto_var($_, CgOp::newrwscalar(CgOp::fetch(
CgOp::scopedlex('Any')))),
CgOp::bind(0, CgOp::scopedlex($_), $first));
} sort keys %{ $self->symbols });
});
}
sub enter_code {
my ($self) = @_;
CgOp::prog(map { CgOp::share_lex($_) } sort keys %{ $self->symbols });
}
__PACKAGE__->meta->make_immutable;
no Moose;
}
1;