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<?php
namespace Illuminate\View\Compilers\Concerns;
use Illuminate\Contracts\Support\CanBeEscapedWhenCastToString;
use Illuminate\Support\Str;
use Illuminate\View\ComponentAttributeBag;
trait CompilesComponents
{
/**
* The component name hash stack.
*
* @var array
*/
protected static $componentHashStack = [];
/**
* Compile the component statements into valid PHP.
*
* @param string $expression
* @return string
*/
protected function compileComponent($expression)
{
[$component, $alias, $data] = str_contains($expression, ',')
? array_map('trim', explode(',', trim($expression, '()'), 3)) + ['', '', '']
: [trim($expression, '()'), '', ''];
$component = trim($component, '\'"');
$hash = static::newComponentHash($component);
if (Str::contains($component, ['::class', '\\'])) {
return static::compileClassComponentOpening($component, $alias, $data, $hash);
}
return "<?php \$__env->startComponent{$expression}; ?>";
}
/**
* Get a new component hash for a component name.
*
* @param string $component
* @return string
*/
public static function newComponentHash(string $component)
{
static::$componentHashStack[] = $hash = sha1($component);
return $hash;
}
/**
* Compile a class component opening.
*
* @param string $component
* @param string $alias
* @param string $data
* @param string $hash
* @return string
*/
public static function compileClassComponentOpening(string $component, string $alias, string $data, string $hash)
{
return implode("\n", [
'<?php if (isset($component)) { $__componentOriginal'.$hash.' = $component; } ?>',
'<?php $component = '.$component.'::resolve('.($data ?: '[]').' + (isset($attributes) && $attributes instanceof Illuminate\View\ComponentAttributeBag ? (array) $attributes->getIterator() : [])); ?>',
'<?php $component->withName('.$alias.'); ?>',
'<?php if ($component->shouldRender()): ?>',
'<?php $__env->startComponent($component->resolveView(), $component->data()); ?>',
]);
}
/**
* Compile the end-component statements into valid PHP.
*
* @return string
*/
protected function compileEndComponent()
{
return '<?php echo $__env->renderComponent(); ?>';
}
/**
* Compile the end-component statements into valid PHP.
*
* @return string
*/
public function compileEndComponentClass()
{
$hash = array_pop(static::$componentHashStack);
return $this->compileEndComponent()."\n".implode("\n", [
'<?php endif; ?>',
'<?php if (isset($__componentOriginal'.$hash.')): ?>',
'<?php $component = $__componentOriginal'.$hash.'; ?>',
'<?php unset($__componentOriginal'.$hash.'); ?>',
'<?php endif; ?>',
]);
}
/**
* Compile the slot statements into valid PHP.
*
* @param string $expression
* @return string
*/
protected function compileSlot($expression)
{
return "<?php \$__env->slot{$expression}; ?>";
}
/**
* Compile the end-slot statements into valid PHP.
*
* @return string
*/
protected function compileEndSlot()
{
return '<?php $__env->endSlot(); ?>';
}
/**
* Compile the component-first statements into valid PHP.
*
* @param string $expression
* @return string
*/
protected function compileComponentFirst($expression)
{
return "<?php \$__env->startComponentFirst{$expression}; ?>";
}
/**
* Compile the end-component-first statements into valid PHP.
*
* @return string
*/
protected function compileEndComponentFirst()
{
return $this->compileEndComponent();
}
/**
* Compile the prop statement into valid PHP.
*
* @param string $expression
* @return string
*/
protected function compileProps($expression)
{
return "<?php \$attributes ??= new \\Illuminate\\View\\ComponentAttributeBag; ?>
<?php foreach(\$attributes->onlyProps{$expression} as \$__key => \$__value) {
\$\$__key = \$\$__key ?? \$__value;
} ?>
<?php \$attributes = \$attributes->exceptProps{$expression}; ?>
<?php foreach (array_filter({$expression}, 'is_string', ARRAY_FILTER_USE_KEY) as \$__key => \$__value) {
\$\$__key = \$\$__key ?? \$__value;
} ?>
<?php \$__defined_vars = get_defined_vars(); ?>
<?php foreach (\$attributes as \$__key => \$__value) {
if (array_key_exists(\$__key, \$__defined_vars)) unset(\$\$__key);
} ?>
<?php unset(\$__defined_vars); ?>";
}
/**
* Compile the aware statement into valid PHP.
*
* @param string $expression
* @return string
*/
protected function compileAware($expression)
{
return "<?php foreach ({$expression} as \$__key => \$__value) {
\$__consumeVariable = is_string(\$__key) ? \$__key : \$__value;
\$\$__consumeVariable = is_string(\$__key) ? \$__env->getConsumableComponentData(\$__key, \$__value) : \$__env->getConsumableComponentData(\$__value);
} ?>";
}
/**
* Sanitize the given component attribute value.
*
* @param mixed $value
* @return mixed
*/
public static function sanitizeComponentAttribute($value)
{
if ($value instanceof CanBeEscapedWhenCastToString) {
return $value->escapeWhenCastingToString();
}
return is_string($value) ||
(is_object($value) && ! $value instanceof ComponentAttributeBag && method_exists($value, '__toString'))
? e($value)
: $value;
}
}
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