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LibWeb: Make StyleComponentValueRule use a Variant

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This shrinks its size from 96 bytes to 80. It's now limited by the size
of Token.
This commit is contained in:
Sam Atkins 2022-03-21 13:35:55 +00:00 • committed by Andreas Kling
parent ca1b855d99
commit 218a9af6b3
2 changed files with 27 additions and 64 deletions
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51
Userland/Libraries/LibWeb/CSS/Parser/StyleRules.cpp
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@ -37,18 +37,15 @@ StyleBlockRule::StyleBlockRule() = default;
StyleBlockRule::~StyleBlockRule() = default;
StyleComponentValueRule::StyleComponentValueRule(Token token)
: m_type(StyleComponentValueRule::ComponentType::Token)
, m_token(token)
: m_value(token)
{
}
StyleComponentValueRule::StyleComponentValueRule(NonnullRefPtr<StyleFunctionRule> function)
: m_type(StyleComponentValueRule::ComponentType::Function)
, m_function(function)
: m_value(function)
{
}
StyleComponentValueRule::StyleComponentValueRule(NonnullRefPtr<StyleBlockRule> block)
: m_type(StyleComponentValueRule::ComponentType::Block)
, m_block(block)
: m_value(block)
{
}
StyleComponentValueRule::~StyleComponentValueRule() = default;
@ -129,38 +126,24 @@ String StyleBlockRule::to_string() const
String StyleComponentValueRule::to_string() const
{
switch (m_type) {
case StyleComponentValueRule::ComponentType::Token:
return m_token.to_string();
case StyleComponentValueRule::ComponentType::Function:
return m_function->to_string();
case StyleComponentValueRule::ComponentType::Block:
return m_block->to_string();
default:
VERIFY_NOT_REACHED();
}
return m_value.visit(
[](Token const& token) { return token.to_string(); },
[](NonnullRefPtr<StyleBlockRule> const& block) { return block->to_string(); },
[](NonnullRefPtr<StyleFunctionRule> const& function) { return function->to_string(); });
}
String StyleComponentValueRule::to_debug_string() const
{
StringBuilder builder;
switch (m_type) {
case ComponentType::Token:
builder.append("Token: ");
builder.append(m_token.to_debug_string());
break;
case ComponentType::Function:
builder.append("Function: ");
builder.append(m_function->to_string());
break;
case ComponentType::Block:
builder.append("Block: ");
builder.append(m_block->to_string());
break;
}
return builder.to_string();
return m_value.visit(
[](Token const& token) {
return String::formatted("Token: {}", token.to_debug_string());
},
[](NonnullRefPtr<StyleBlockRule> const& block) {
return String::formatted("Function: {}", block->to_string());
},
[](NonnullRefPtr<StyleFunctionRule> const& function) {
return String::formatted("Block: {}", function->to_string());
});
}
String StyleDeclarationRule::to_string() const