function ParseEntity(TokenStream $it)
{
$entity = new ASTEntity();
$it->getToken(SyntaxMap::Keyword);
$identifier = $it->getToken(SyntaxMap::Identifier);
$entity->table = $identifier->value;
//Verify that entity is not redeclared
$key = strtolower($identifier->value);
if (isset($it->entities[$key])) {
throw ParserException::redeclaredEntity($identifier);
} else {
$it->entities[$key] = [];
}
// Parse table name
if ($it->typeAt(SyntaxMap::OpenParen, 0)) {
$it->getToken(SyntaxMap::OpenParen);
$tableName = $it->getToken(SyntaxMap::Identifier);
$it->getToken(SyntaxMap::CloseParen);
$entity->table = $tableName->value;
}
$it->getToken(SyntaxMap::OpenBrace);
$entity->name = $identifier->value;
while (!$it->typeAt(SyntaxMap::CloseBrace, 0)) {
$field = ParseField($it, $entity);
$entity->fields[] = $field;
}
$it->getAndMove();
return $entity;
}
