Viewing file:  BladeSourceMapCompiler.php (2.62 KB) -rw-r--r--
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<?php
namespace Facade\Ignition\Views\Compilers;
use ErrorException;
use Illuminate\View\Compilers\BladeCompiler;
class BladeSourceMapCompiler extends BladeCompiler
{
public function detectLineNumber(string $filename, int $exceptionLineNumber): int
{
try {
$map = $this->compileString(file_get_contents($filename));
} catch (ErrorException $e) {
return 1;
}
$map = explode("\n", $map);
$line = $map[$exceptionLineNumber - 1] ?? $exceptionLineNumber;
$pattern = '/\|---LINE:([0-9]+)---\|/m';
if (preg_match($pattern, (string)$line, $matches)) {
return (int)$matches[1];
}
return $exceptionLineNumber;
}
public function compileString($value)
{
try {
$value = $this->addEchoLineNumbers($value);
$value = $this->addStatementLineNumbers($value);
$value = parent::compileString($value);
return $this->trimEmptyLines($value);
} catch (\Exception $e) {
return $value;
}
}
protected function addEchoLineNumbers(string $value)
{
$pattern = sprintf('/(@)?%s\s*(.+?)\s*%s(\r?\n)?/s', $this->contentTags[0], $this->contentTags[1]);
if (preg_match_all($pattern, $value, $matches, PREG_OFFSET_CAPTURE)) {
foreach (array_reverse($matches[0]) as $match) {
$position = mb_strlen(substr($value, 0, $match[1]));
$value = $this->insertLineNumberAtPosition($position, $value);
}
}
return $value;
}
protected function addStatementLineNumbers(string $value)
{
$shouldInsertLineNumbers = preg_match_all(
'/\B@(@?\w+(?:::\w+)?)([ \t]*)(\( ( (?>[^()]+) | (?3) )* \))?/x',
$value,
$matches,
PREG_OFFSET_CAPTURE
);
if ($shouldInsertLineNumbers) {
foreach (array_reverse($matches[0]) as $match) {
$position = mb_strlen(substr($value, 0, $match[1]));
$value = $this->insertLineNumberAtPosition($position, $value);
}
}
return $value;
}
protected function insertLineNumberAtPosition(int $position, string $value)
{
$before = mb_substr($value, 0, $position);
$lineNumber = count(explode("\n", $before));
return mb_substr($value, 0, $position)."|---LINE:{$lineNumber}---|".mb_substr($value, $position);
}
protected function trimEmptyLines(string $value)
{
$value = preg_replace('/^\|---LINE:([0-9]+)---\|$/m', '', $value);
return ltrim($value, PHP_EOL);
}
}
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