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LibWeb: Make WrapperGenerator generate nullable wrapper types

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Previously it was not doing so, and some code relied on this not being
the case.

In particular, set_caption, set_t_head and set_t_foot in
HTMLTableElement relied on this. This commit is not here to fix this,
so I added an assertion to make it equivalent to a reference for now.
This commit is contained in:
Luke 2021-07-05 05:45:20 +01:00 • committed by Andreas Kling
parent 62c015dc96
commit a826df773e
5 changed files with 43 additions and 16 deletions
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6
Userland/Libraries/LibWeb/DOM/Document.cpp
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@ -215,14 +215,14 @@ HTML::HTMLElement* Document::body()
}
// https://html.spec.whatwg.org/multipage/dom.html#dom-document-body
ExceptionOr<void> Document::set_body(HTML::HTMLElement& new_body)
ExceptionOr<void> Document::set_body(HTML::HTMLElement* new_body)
{
if (!is<HTML::HTMLBodyElement>(new_body) && !is<HTML::HTMLFrameSetElement>(new_body))
return DOM::HierarchyRequestError::create("Invalid document body element, must be 'body' or 'frameset'");
auto* existing_body = body();
if (existing_body) {
auto replace_result = existing_body->parent()->replace_child(new_body, *existing_body);
auto replace_result = existing_body->parent()->replace_child(*new_body, *existing_body);
if (replace_result.is_exception())
return replace_result.exception();
return {};
@ -232,7 +232,7 @@ ExceptionOr<void> Document::set_body(HTML::HTMLElement& new_body)
if (!document_element)
return DOM::HierarchyRequestError::create("Missing document element");
auto append_result = document_element->append_child(new_body);
auto append_result = document_element->append_child(*new_body);
if (append_result.is_exception())
return append_result.exception();
return {};