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LibJS: Cache arguments span in ExecutionContext

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Allows us to avoid doing math in ExecutionContext::argument()
This commit is contained in:
Aliaksandr Kalenik 2025-04-24 01:37:30 +02:00 • committed by Andreas Kling
parent ff751173ac
commit e48645c83f
Notes: github-actions[bot] 2025-04-24 08:31:57 +00:00
13 changed files with 24 additions and 31 deletions
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4
Libraries/LibJS/Runtime/ExecutionContext.cpp
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@ -106,6 +106,7 @@ ExecutionContext::ExecutionContext(u32 registers_and_constants_and_locals_count,
auto* registers_and_constants_and_locals_and_arguments = this->registers_and_constants_and_locals_and_arguments();
for (size_t i = 0; i < registers_and_constants_and_locals_count; ++i)
registers_and_constants_and_locals_and_arguments[i] = js_special_empty_value();
arguments = { registers_and_constants_and_locals_and_arguments + arguments_offset, registers_and_constants_and_locals_and_arguments_count - arguments_offset };
}
ExecutionContext::~ExecutionContext()
@ -114,7 +115,7 @@ ExecutionContext::~ExecutionContext()
NonnullOwnPtr<ExecutionContext> ExecutionContext::copy() const
{
auto copy = create(registers_and_constants_and_locals_and_arguments_count, arguments().size());
auto copy = create(registers_and_constants_and_locals_and_arguments_count, arguments.size());
copy->function = function;
copy->realm = realm;
copy->script_or_module = script_or_module;
@ -134,6 +135,7 @@ NonnullOwnPtr<ExecutionContext> ExecutionContext::copy() const
copy->registers_and_constants_and_locals_and_arguments_count = registers_and_constants_and_locals_and_arguments_count;
for (size_t i = 0; i < registers_and_constants_and_locals_and_arguments_count; ++i)
copy->registers_and_constants_and_locals_and_arguments()[i] = registers_and_constants_and_locals_and_arguments()[i];
copy->arguments = { copy->registers_and_constants_and_locals_and_arguments() + copy->arguments_offset, arguments.size() };
return copy;
}