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9079be850b
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.
63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/*
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* Copyright (c) 2020-2021, the SerenityOS developers.
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* Copyright (c) 2021-2025, Sam Atkins <sam@ladybird.org>
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* Copyright (c) 2023, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/NonnullRefPtr.h>
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#include <AK/RefPtr.h>
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#include <LibWeb/CSS/Parser/Token.h>
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#include <LibWeb/CSS/Parser/Types.h>
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namespace Web::CSS::Parser {
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// https://drafts.csswg.org/css-syntax/#component-value
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class ComponentValue {
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AK_MAKE_DEFAULT_COPYABLE(ComponentValue);
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AK_MAKE_DEFAULT_MOVABLE(ComponentValue);
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public:
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ComponentValue(Token);
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explicit ComponentValue(Function&&);
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explicit ComponentValue(SimpleBlock&&);
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explicit ComponentValue(GuaranteedInvalidValue&&);
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~ComponentValue();
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bool is_block() const { return m_value.has<SimpleBlock>(); }
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SimpleBlock const& block() const { return m_value.get<SimpleBlock>(); }
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bool is_function() const { return m_value.has<Function>(); }
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bool is_function(StringView name) const;
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Function const& function() const { return m_value.get<Function>(); }
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bool is_token() const { return m_value.has<Token>(); }
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bool is(Token::Type type) const { return is_token() && token().is(type); }
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bool is_delim(u32 delim) const { return is(Token::Type::Delim) && token().delim() == delim; }
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bool is_ident(StringView ident) const;
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Token const& token() const { return m_value.get<Token>(); }
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operator Token() const { return m_value.get<Token>(); }
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bool is_guaranteed_invalid() const { return m_value.has<GuaranteedInvalidValue>(); }
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bool contains_guaranteed_invalid_value() const;
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String to_string() const;
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String to_debug_string() const;
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String original_source_text() const;
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private:
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Variant<Token, Function, SimpleBlock, GuaranteedInvalidValue> m_value;
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};
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}
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template<>
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struct AK::Formatter<Web::CSS::Parser::ComponentValue> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, Web::CSS::Parser::ComponentValue const& component_value)
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{
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return Formatter<StringView>::format(builder, component_value.to_string());
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}
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};
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