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LibJS: Move well-known symbols to the VM

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No need to instantiate unique symbols for each Interpreter; they can
be VM-global. This reduces the memory cost and startup time anyway.
This commit is contained in:
Andreas Kling 2020-09-22 16:18:51 +02:00
parent 676cb87a8f
commit d1b58ee9ad
Notes: sideshowbarker 2024-07-19 02:16:35 +09:00
20 changed files with 60 additions and 52 deletions
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23
Libraries/LibJS/Interpreter.cpp
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@ -48,10 +48,6 @@ Interpreter::Interpreter(VM& vm)
: m_vm(vm)
, m_console(*this)
{
#define __JS_ENUMERATE(SymbolName, snake_name) \
m_well_known_symbol_##snake_name = js_symbol(*this, "Symbol." #SymbolName, false);
JS_ENUMERATE_WELL_KNOWN_SYMBOLS
#undef __JS_ENUMERATE
}
Interpreter::~Interpreter()
@ -212,17 +208,6 @@ Reference Interpreter::get_reference(const FlyString& name)
return { Reference::GlobalVariable, name };
}
Symbol* Interpreter::get_global_symbol(const String& description)
{
auto result = m_global_symbol_map.get(description);
if (result.has_value())
return result.value();
auto new_global_symbol = js_symbol(*this, description, true);
m_global_symbol_map.set(description, new_global_symbol);
return new_global_symbol;
}
void Interpreter::gather_roots(HashTable<Cell*>& roots)
{
if (m_last_value.is_cell())
@ -237,14 +222,6 @@ void Interpreter::gather_roots(HashTable<Cell*>& roots)
}
roots.set(call_frame.environment);
}
#define __JS_ENUMERATE(SymbolName, snake_name) \
roots.set(well_known_symbol_##snake_name());
JS_ENUMERATE_WELL_KNOWN_SYMBOLS
#undef __JS_ENUMERATE
for (auto& symbol : m_global_symbol_map)
roots.set(symbol.value);
}
Value Interpreter::call_internal(Function& function, Value this_value, Optional<MarkedValueList> arguments)