protected function visitFunctionCall(O\FunctionCallExpression $expression)
{
$functionName = $expression->getName()->getValue();
if (!isset($this->functions[$functionName])) {
throw new PinqDemoSqlException("Function not supported: {$functionName}");
}
$arguments = [];
foreach ($expression->getArguments() as $argument) {
$arguments[] = $this->compileInContext($argument);
}
$this->sql .= $this->functions[$functionName] . '(' . implode(', ', $arguments) . ')';
}
public function visitFunctionCall(O\FunctionCallExpression $expression)
{
$nameExpression = $expression->getName();
$this->walk($nameExpression);
$this->walkAll($expression->getArguments());
if ($nameExpression instanceof O\ValueExpression) {
$function = $this->typeSystem->getFunction($nameExpression->getValue());
$this->metadata[$expression] = $function;
$this->analysis[$expression] = $function->getReturnType();
} else {
throw new TypeException('Invalid function expression: dynamic function calls are not allowed');
}
}
protected final function visitCount(O\Expression $expression)
{
$this->interpretation->interpretCount($this->getId('count'));
if ($expression instanceof O\MethodCallExpression) {
$this->interpretSourceAsScope($expression);
} elseif ($expression instanceof O\FunctionCallExpression && count($expression->getArguments()) > 0) {
$this->scopeInterpreter->interpretScope($expression->getArguments()[0]->getValue());
} else {
throw new PinqException('Cannot interpret count request: invalid expression type, expecting %s, %s given', O\MethodCallExpression::getType() . ' or ' . O\FunctionCallExpression::getType() . ' with at least one argument', $expression->getType());
}
}
