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LibWeb/CSS: Include guaranteed-invalid value in ComponentValue

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Treating these like any other ComponentValue means not having to convert
between different types of Vector, and that we will be able to use
TokenStream to parse the "argument grammars" of arbitrary substitution
functions.
This commit is contained in:
Sam Atkins
2025-06-18 17:24:19 +01:00
committed by Tim Ledbetter
parent b5ed910f1f
commit 9079be850b
Notes: github-actions[bot] 2025-07-09 15:46:20 +00:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/LadybirdBrowser/ladybird/commit/9079be850b3
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5226
Reviewed-by: https://github.com/tcl3 ✅
4 changed files with 44 additions and 4 deletions
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8
Libraries/LibWeb/CSS/Parser/ComponentValue.h
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@@ -1,6 +1,6 @@
/*
* Copyright (c) 2020-2021, the SerenityOS developers.
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2021-2025, Sam Atkins <sam@ladybird.org>
* Copyright (c) 2023, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
@@ -24,6 +24,7 @@ public:
ComponentValue(Token);
explicit ComponentValue(Function&&);
explicit ComponentValue(SimpleBlock&&);
explicit ComponentValue(GuaranteedInvalidValue&&);
~ComponentValue();
bool is_block() const { return m_value.has<SimpleBlock>(); }
@@ -40,12 +41,15 @@ public:
Token const& token() const { return m_value.get<Token>(); }
operator Token() const { return m_value.get<Token>(); }
bool is_guaranteed_invalid() const { return m_value.has<GuaranteedInvalidValue>(); }
bool contains_guaranteed_invalid_value() const;
String to_string() const;
String to_debug_string() const;
String original_source_text() const;
private:
Variant<Token, Function, SimpleBlock> m_value;
Variant<Token, Function, SimpleBlock, GuaranteedInvalidValue> m_value;
};
}