Increase type safety #87
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This was referenced Mar 16, 2024
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Breaking BC for Readability 3.0.
Not sure if this is expected but at least it works the same as before.
`DOMAttr::$value` must be a `string`. Let’s add helpers for manipulating the `readability` attribute so that we do not have to keep casting it from and to `string` in order to appease `strict_types`.
PHP 7.4 supports property type hints. - `getInnerText` actually accepts `DOMNode`, not `DOMElement`, since it can be e.g. `DOMText`. Really, we just need the `textContent` property. - Since we now use property type hints, we can drop the `no_null_property_initialization` PHP-CS-Fixer rule.
It is more specific then DOMElement. This allows us to get rid of the assertions in tests.
Will make it easier to statically analyze with PHPStan. This is a BC break.
Nothing affecting correctness, just stuff making it easier for PHPStan to reason about the code. Remove `$errcontext` argument in `set_error_handler` since it is removed in PHP 8.
It would fail for e.g. `<div> <p>foo</p> </div>`. mozilla/readability uses children for the tag lookup, which return only elements. PHP does not have children property so b580cf2 mistakenly used `childNodes` instead, but that can return any node type. Let’s filter the children ourselves. Also add comments from mozilla/readability’s `_hasSingleTagInsideElement`.
Converting `hasSingleTagInsideElement` into a type-safe getter will allow PHPStan to know the type of `newNode` is `DOMElement`.
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This will allow us to use flexible heredocs in test, as well as typed properties and other goodies.
https://www.php.net/releases/7_3_0.php
https://www.php.net/releases/7_4_0.php