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LibWeb+LibSyntax: Implement nested syntax highlighters

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And use them to highlight javascript in HTML source.
This commit also changes how TextDocumentSpan::data is interpreted,
as it used to be an opaque pointer, but everyone stuffed an enum value
inside it, which made the values not unique to each highlighter;
that field is now a u64 serial id.
The syntax highlighters don't need to change their ways of stuffing
token types into that field, but a highlighter that calls another
nested highlighter needs to register the nested types for use with
token pairs.
This commit is contained in:
Ali Mohammad Pur 2021-06-07 12:03:09 +04:30 • committed by Ali Mohammad Pur
parent 3bac14e19e
commit 71b4433b0d
18 changed files with 219 additions and 104 deletions
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22
Userland/Libraries/LibCpp/SyntaxHighlighter.cpp
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@ -43,15 +43,15 @@ static Syntax::TextStyle style_for_token_type(Gfx::Palette const& palette, Cpp::
}
}
bool SyntaxHighlighter::is_identifier(void* token) const
bool SyntaxHighlighter::is_identifier(u64 token) const
{
auto cpp_token = static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token));
auto cpp_token = static_cast<Cpp::Token::Type>(token);
return cpp_token == Cpp::Token::Type::Identifier;
}
bool SyntaxHighlighter::is_navigatable(void* token) const
bool SyntaxHighlighter::is_navigatable(u64 token) const
{
auto cpp_token = static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token));
auto cpp_token = static_cast<Cpp::Token::Type>(token);
return cpp_token == Cpp::Token::Type::IncludePath;
}
@ -72,7 +72,7 @@ void SyntaxHighlighter::rehighlight(Palette const& palette)
span.attributes.color = style.color;
span.attributes.bold = style.bold;
span.is_skippable = token.type() == Cpp::Token::Type::Whitespace;
span.data = reinterpret_cast<void*>(token.type());
span.data = static_cast<u64>(token.type());
spans.append(span);
}
m_client->do_set_spans(move(spans));
@ -83,20 +83,20 @@ void SyntaxHighlighter::rehighlight(Palette const& palette)
m_client->do_update();
}
Vector<SyntaxHighlighter::MatchingTokenPair> SyntaxHighlighter::matching_token_pairs() const
Vector<SyntaxHighlighter::MatchingTokenPair> SyntaxHighlighter::matching_token_pairs_impl() const
{
static Vector<SyntaxHighlighter::MatchingTokenPair> pairs;
if (pairs.is_empty()) {
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftCurly), reinterpret_cast<void*>(Cpp::Token::Type::RightCurly) });
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftParen), reinterpret_cast<void*>(Cpp::Token::Type::RightParen) });
pairs.append({ reinterpret_cast<void*>(Cpp::Token::Type::LeftBracket), reinterpret_cast<void*>(Cpp::Token::Type::RightBracket) });
pairs.append({ static_cast<u64>(Cpp::Token::Type::LeftCurly), static_cast<u64>(Cpp::Token::Type::RightCurly) });
pairs.append({ static_cast<u64>(Cpp::Token::Type::LeftParen), static_cast<u64>(Cpp::Token::Type::RightParen) });
pairs.append({ static_cast<u64>(Cpp::Token::Type::LeftBracket), static_cast<u64>(Cpp::Token::Type::RightBracket) });
}
return pairs;
}
bool SyntaxHighlighter::token_types_equal(void* token1, void* token2) const
bool SyntaxHighlighter::token_types_equal(u64 token1, u64 token2) const
{
return static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token1)) == static_cast<Cpp::Token::Type>(reinterpret_cast<size_t>(token2));
return static_cast<Cpp::Token::Type>(token1) == static_cast<Cpp::Token::Type>(token2);
}
SyntaxHighlighter::~SyntaxHighlighter()