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Compiler.php
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Compiler.php
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<?php
declare(strict_types=1);
namespace Qubus\View;
use function str_repeat;
use function str_replace;
use function substr_count;
use function var_export;
final class Compiler
{
private string $result;
private Module $module;
private int $line;
private array $trace;
public function __construct(Module $module)
{
$this->result = '';
$this->module = $module;
$this->line = 1;
$this->trace = [];
}
private function write($string): Compiler
{
$this->result .= $string;
return $this;
}
public function raw($raw, $indent = 0): Compiler
{
$this->line += substr_count($raw, "\n");
$this->write(str_repeat(' ', 4 * $indent) . $raw);
return $this;
}
public function repr(mixed $repr, int $indent = 0): void
{
$this->raw(var_export($repr, true), $indent);
}
public function compile(): string
{
$this->module->compile($this);
return $this->result;
}
public function pushContext($name, $indent = 0): Compiler
{
$this->raw('$this->pushContext($context, ', $indent);
$this->repr($name);
$this->raw(");\n");
return $this;
}
public function popContext($name, $indent = 0): Compiler
{
$this->raw('$this->popContext($context, ', $indent);
$this->repr($name);
$this->raw(");\n");
return $this;
}
public function addTraceInfo(BaseNode $node, int $indent = 0, bool $line = true): void
{
$this->raw(
'/* line ' . $node->getLine() . " -> " . ($this->line + 1)
. " */\n",
$indent
);
if ($line) {
$this->trace[$this->line] = $node->getLine();
}
}
public function getTraceInfo(bool $export = false): array|string|null
{
if ($export) {
return str_replace(
["\n", ' '],
'',
var_export($this->trace, true)
);
}
return $this->trace;
}
}