<?php
namespace MailPoetVendor\Twig;
if (!defined('ABSPATH')) exit;
use MailPoetVendor\Twig\Node\Node;
class Compiler
{
private $lastLine;
private $source;
private $indentation;
private $env;
private $debugInfo = [];
private $sourceOffset;
private $sourceLine;
private $varNameSalt = 0;
public function __construct(Environment $env)
{
$this->env = $env;
}
public function getEnvironment() : Environment
{
return $this->env;
}
public function getSource() : string
{
return $this->source;
}
public function compile(Node $node, int $indentation = 0)
{
$this->lastLine = null;
$this->source = '';
$this->debugInfo = [];
$this->sourceOffset = 0;
// source code starts at 1 (as we then increment it when we encounter new lines)
$this->sourceLine = 1;
$this->indentation = $indentation;
$this->varNameSalt = 0;
$node->compile($this);
return $this;
}
public function subcompile(Node $node, bool $raw = \true)
{
if (\false === $raw) {
$this->source .= \str_repeat(' ', $this->indentation * 4);
}
$node->compile($this);
return $this;
}
public function raw(string $string)
{
$this->source .= $string;
return $this;
}
public function write(...$strings)
{
foreach ($strings as $string) {
$this->source .= \str_repeat(' ', $this->indentation * 4) . $string;
}
return $this;
}
public function string(string $value)
{
$this->source .= \sprintf('"%s"', \addcslashes($value, "\x00\t\"\$\\"));
return $this;
}
public function repr($value)
{
if (\is_int($value) || \is_float($value)) {
if (\false !== ($locale = \setlocale(\LC_NUMERIC, '0'))) {
\setlocale(\LC_NUMERIC, 'C');
}
$this->raw(\var_export($value, \true));
if (\false !== $locale) {
\setlocale(\LC_NUMERIC, $locale);
}
} elseif (null === $value) {
$this->raw('null');
} elseif (\is_bool($value)) {
$this->raw($value ? 'true' : 'false');
} elseif (\is_array($value)) {
$this->raw('array(');
$first = \true;
foreach ($value as $key => $v) {
if (!$first) {
$this->raw(', ');
}
$first = \false;
$this->repr($key);
$this->raw(' => ');
$this->repr($v);
}
$this->raw(')');
} else {
$this->string($value);
}
return $this;
}
public function addDebugInfo(Node $node)
{
if ($node->getTemplateLine() != $this->lastLine) {
$this->write(\sprintf("// line %d\n", $node->getTemplateLine()));
$this->sourceLine += \substr_count($this->source, "\n", $this->sourceOffset);
$this->sourceOffset = \strlen($this->source);
$this->debugInfo[$this->sourceLine] = $node->getTemplateLine();
$this->lastLine = $node->getTemplateLine();
}
return $this;
}
public function getDebugInfo() : array
{
\ksort($this->debugInfo);
return $this->debugInfo;
}
public function indent(int $step = 1)
{
$this->indentation += $step;
return $this;
}
public function outdent(int $step = 1)
{
// can't outdent by more steps than the current indentation level
if ($this->indentation < $step) {
throw new \LogicException('Unable to call outdent() as the indentation would become negative.');
}
$this->indentation -= $step;
return $this;
}
public function getVarName() : string
{
return \sprintf('__internal_compile_%d', $this->varNameSalt++);
}
}