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LibWeb/HTML: Use unique offsets for nested highlighters' tokens

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The code previously ensured that JS/CSS tokens did not share values with
the HTML tokens, but still let them share values with each other. The
numbers chosen (1000 and 2000) are somewhat arbitrary, but give us
plenty of room to avoid overlaps.
This commit is contained in:
Sam Atkins 2024-09-24 12:36:49 +01:00 committed by Sam Atkins
parent 2b961f145c
commit 07f0d9209a
2 changed files with 8 additions and 2 deletions
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7
Userland/Libraries/LibWeb/HTML/SyntaxHighlighter/SyntaxHighlighter.cpp
View File

@ -7,6 +7,7 @@
#include <AK/Debug.h>
#include <LibJS/SyntaxHighlighter.h>
#include <LibJS/Token.h>
#include <LibWeb/CSS/SyntaxHighlighter/SyntaxHighlighter.h>
#include <LibWeb/HTML/Parser/HTMLTokenizer.h>
#include <LibWeb/HTML/SyntaxHighlighter/SyntaxHighlighter.h>
@ -88,10 +89,11 @@ void SyntaxHighlighter::rehighlight(Palette const& palette)
} else if (token->is_end_tag()) {
if (token->tag_name().is_one_of("script"sv, "style"sv)) {
if (state == State::Javascript) {
VERIFY(static_cast<u64>(AugmentedTokenKind::__Count) + first_free_token_kind_serial_value() < JS_TOKEN_START_VALUE);
Syntax::ProxyHighlighterClient proxy_client {
*m_client,
substring_start_position,
static_cast<u64>(AugmentedTokenKind::__Count) + first_free_token_kind_serial_value(),
JS_TOKEN_START_VALUE,
substring_builder.string_view()
};
{
@ -106,10 +108,11 @@ void SyntaxHighlighter::rehighlight(Palette const& palette)
folding_regions.extend(proxy_client.corrected_folding_regions());
substring_builder.clear();
} else if (state == State::CSS) {
VERIFY(static_cast<u64>(AugmentedTokenKind::__Count) + first_free_token_kind_serial_value() + static_cast<u64>(JS::TokenType::_COUNT_OF_TOKENS) < CSS_TOKEN_START_VALUE);
Syntax::ProxyHighlighterClient proxy_client {
*m_client,
substring_start_position,
static_cast<u64>(AugmentedTokenKind::__Count) + first_free_token_kind_serial_value(),
CSS_TOKEN_START_VALUE,
substring_builder.string_view()
};
{

3
Userland/Libraries/LibWeb/HTML/SyntaxHighlighter/SyntaxHighlighter.h
View File

@ -23,6 +23,9 @@ public:
virtual Optional<StringView> comment_suffix() const override { return "-->"sv; }
virtual void rehighlight(Palette const&) override;
static constexpr u64 JS_TOKEN_START_VALUE = 1000;
static constexpr u64 CSS_TOKEN_START_VALUE = 2000;
protected:
virtual Vector<MatchingTokenPair> matching_token_pairs_impl() const override;
virtual bool token_types_equal(u64, u64) const override;