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LibJS/Bytecode: Make primitive strings be constants

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Instead of emitting a NewString instruction to construct a primitive
string from a parsed literal, we now instantiate the PrimitiveString on
the heap during codegen.
This commit is contained in:
Andreas Kling 2024-03-03 11:34:36 +01:00
parent fd694e8672
commit 46d209c55b
Notes: sideshowbarker 2024-07-16 22:14:49 +09:00
8 changed files with 27 additions and 52 deletions
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15
Userland/Libraries/LibJS/Bytecode/Interpreter.cpp
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@ -63,6 +63,8 @@ static ByteString format_operand(StringView name, Operand operand, Bytecode::Exe
builder.appendff("Int32({})", value.as_i32());
else if (value.is_double())
builder.appendff("Double({})", value.as_double());
else if (value.is_string())
builder.appendff("String(\"{}\")", value.as_string().utf8_string_view());
else if (value.is_undefined())
builder.append("Undefined"sv);
else if (value.is_null())
@ -899,12 +901,6 @@ ThrowCompletionOr<void> IteratorToArray::execute_impl(Bytecode::Interpreter& int
return {};
}
ThrowCompletionOr<void> NewString::execute_impl(Bytecode::Interpreter& interpreter) const
{
interpreter.set(dst(), PrimitiveString::create(interpreter.vm(), interpreter.current_executable().get_string(m_string)));
return {};
}
ThrowCompletionOr<void> NewObject::execute_impl(Bytecode::Interpreter& interpreter) const
{
auto& vm = interpreter.vm();
@ -1656,13 +1652,6 @@ ByteString IteratorToArray::to_byte_string_impl(Bytecode::Executable const& exec
format_operand("iterator"sv, iterator(), executable));
}
ByteString NewString::to_byte_string_impl(Bytecode::Executable const& executable) const
{
return ByteString::formatted("NewString {}, \"{}\"",
format_operand("dst"sv, dst(), executable),
executable.string_table->get(m_string));
}
ByteString NewObject::to_byte_string_impl(Bytecode::Executable const& executable) const
{
return ByteString::formatted("NewObject {}", format_operand("dst"sv, dst(), executable));