private function parse_exitTagContext()
{
$current = $this->current;
if (isset($this->currentScalarProperty)) {
$prop = $this->currentScalarProperty;
$v = $this->currentScalarValue;
$this->currentScalarProperty = null;
$this->currentScalarValue = '';
if (Expression::isBindingExpression($v)) {
$this->current->bind($prop, $v);
} else {
$this->current->props->{$prop} = $v;
}
} else {
$this->text_optimize($current);
$parent = $current->parent;
$current->onParsingComplete();
//Note: calling this method may unset the 'parent' property (ex. with macros, which are immediately removed from the DOM).
// Check if the metadata context is being closed.
if (isset($this->metadataContainer) && $this->current === $this->metadataContainer) {
$this->metadataContainer = null;
}
$this->current = $parent;
//also discards the current scalar parameter, if that is the case.
}
}
function __construct($expression)
{
if (Expression::isCompositeBinding($expression)) {
throw new DataBindingException("Multiple binding expressions on a string are not supported: <kbd>{$expression}</kbd>\n<p>Convert it to a single expression using the <kbd>+</kbd> string concatenation operator.");
}
if (!preg_match(self::$PARSE_BINDING_EXP, $expression, $matches)) {
throw new DataBindingException("Invalid databinding expression: {$expression}");
}
list($full, $this->expression) = $matches;
}
/**
* Evaluates the given binding expression on the component's context.
*
* <p>This method is an **extension hook** that allows a subclass to modify the evaluation result.
* > <p>**Ex.** see the {@see Text} component.
*
* @param Expression $bindExp
* @return mixed
* @throws ComponentException
* @throws DataBindingException
*/
protected function evalBinding(Expression $bindExp)
{
$binder = $this->getDataBinder();
if (!$binder) {
_log()->warning("No binder is set for evaluating an expression on a " . $this->getTagName() . " component");
return null;
}
try {
/** @var Component $this */
return $bindExp->evaluate($binder);
} catch (\Exception $e) {
self::evalError($e, $bindExp);
} catch (\Error $e) {
self::evalError($e, $bindExp);
}
}
