Cannot find the Block file

Question

When templates hints are turned ON , it is shown that

Magento\Checkout\Block\Cart\Sidebar\Interceptor

is responsible for

/var/www/html/magento/vendor/magento/module-checkout/view/frontend/templates/cart/minicart.phtml

when I browsed to the loaction

/vendor/magento/module-checkout/Block/Cart

There is Sidebar.php

Not Sidebar/Interceptor.php, which is expected from the block name conventions followed by magento.

Where can I find the file?

Also In which layout file the minicart.phtml file is defined?

Answer 1

The classes that end with Interceptor, Proxy and Factory (but not all of them) may be found in generated/code folder.
They all look very similar.
But please don't change them because they get regenerated.

You will see that all Interceptor classes have the following characteristics:

They extend a class with the same as the current class except there is a missing "interceptor" at the end.
All methods in the interceptor look like this:

public function methodNameHere(parameters here)
{
 $pluginInfo = $this->pluginList->getNext($this->subjectType, 'methodNameHere');
 if (!$pluginInfo) {
 return parent::methodNameHere(parameters here);
 } else {
 return $this->___callPlugins('methodNameHere', func_get_args(), $pluginInfo);
 }
}

This is a method to change the behavior of a function without changing the function itself.
Read more about code generation and plugins

• shabeeb ali: That's most satisfying answer. Hats off