Loads formulae from resources.
\LogicException If a resource has been added to an invalid loader
public function load() {
if ($this->loading) {
return;
}
if ($diff = array_diff(array_keys($this->resources), array_keys($this->loaders))) {
throw new \LogicException('The following loader(s) are not registered: ' . implode(', ', $diff));
}
$this->loading = true;
foreach ($this->resources as $loader => $resources) {
foreach ($resources as $resource) {
$this->formulae = array_replace($this->formulae, $this->loaders[$loader]
->load($resource));
}
}
$this->loaded = true;
$this->loading = false;
}