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|
package Text::Handlebars::Compiler;
use Any::Moose;
extends 'Text::Xslate::Compiler';
use Try::Tiny;
has '+syntax' => (
default => 'Handlebars',
);
sub define_helper { shift->parser->define_helper(@_) }
sub _generate_block_body {
my $self = shift;
my ($node) = @_;
my @compiled = map { $self->compile_ast($_) } @{ $node->second };
unshift @compiled, $self->_localize_vars($node->first)
if $node->first;
return @compiled;
}
sub _generate_key {
my $self = shift;
my ($node) = @_;
my $var = $node->clone(arity => 'variable');
return $self->compile_ast($self->_check_lambda($var));
}
sub _generate_key_field {
my $self = shift;
my ($node) = @_;
my $field = $node->clone(arity => 'field');
return $self->compile_ast($self->_check_lambda($field));
}
sub _check_lambda {
my $self = shift;
my ($var) = @_;
my $parser = $self->parser;
my $is_code = $parser->symbol('(name)')->clone(
arity => 'name',
id => '(is_code)',
line => $var->line,
);
my $run_code = $parser->symbol('(name)')->clone(
arity => 'name',
id => '(run_code)',
line => $var->line,
);
return $parser->make_ternary(
$parser->call($is_code, $var->clone),
$parser->call(
$run_code,
$var->clone,
$parser->vars,
),
$var,
);
}
sub _generate_include {
my $self = shift;
my ($node) = @_;
my $file = $node->first;
$file->id($file->id . $self->engine->{suffix})
unless try { $self->engine->find_file($file->id); 1 };
return $self->SUPER::_generate_include($node);
}
sub _generate_call {
my $self = shift;
my ($node) = @_;
if ($node->is_helper) {
my @args;
my @hash;
for my $arg (@{ $node->second }) {
if ($arg->arity eq 'pair') {
push @hash, $arg->first, $arg->second;
}
else {
push @args, $arg;
}
}
my $parser = $self->parser;
my $make_hash = $parser->symbol('(name)')->clone(
arity => 'name',
id => '(make_hash)',
line => $node->line,
);
my $hash = $parser->call($make_hash, @hash);
unshift @args, $parser->vars;
if ($node->first->arity eq 'call' && $node->first->first->id eq '(make_block_helper)') {
push @{ $node->first->second }, $hash;
$node->second(\@args);
}
else {
$node->second([ @args, $hash ]);
}
}
return $self->SUPER::_generate_call($node);
}
sub _generate_partial {
my $self = shift;
my ($node) = @_;
my $parser = $self->parser;
my $find_file = $parser->symbol('(name)')->clone(
arity => 'name',
id => '(find_file)',
line => $node->line,
);
return $self->compile_ast(
$parser->make_ternary(
$parser->call($find_file, $node->first->clone),
$node->clone(
arity => 'include',
id => 'include',
first => $node->first,
),
$node->clone(
arity => 'literal',
id => '',
),
),
);
}
__PACKAGE__->meta->make_immutable;
no Any::Moose;
1;
|
