ladybird/Userland/Libraries/LibJS/Bytecode/Executable.h
Andreas Kling c0f985ffcf LibJS/Bytecode: Don't reparse regular expressions on instantiation
The RegExpLiteral AST node already has the parsed regex::Parser::Result
so let's plumb that over to the bytecode executable instead of reparsing
the regex every time NewRegExp is executed.

~12% speed-up on language/literals/regexp/S7.8.5_A2.1_T2.js in test262.
2023-07-13 13:30:49 +02:00

46 lines
1.3 KiB
C++

/*
* Copyright (c) 2021-2023, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/DeprecatedFlyString.h>
#include <AK/NonnullOwnPtr.h>
#include <AK/WeakPtr.h>
#include <LibJS/Bytecode/BasicBlock.h>
#include <LibJS/Bytecode/IdentifierTable.h>
#include <LibJS/Bytecode/RegexTable.h>
#include <LibJS/Bytecode/StringTable.h>
namespace JS::Bytecode {
struct PropertyLookupCache {
WeakPtr<Shape> shape;
Optional<u32> property_offset;
u64 unique_shape_serial_number { 0 };
};
struct GlobalVariableCache : public PropertyLookupCache {
u64 environment_serial_number { 0 };
};
struct Executable {
DeprecatedFlyString name;
Vector<PropertyLookupCache> property_lookup_caches;
Vector<GlobalVariableCache> global_variable_caches;
Vector<NonnullOwnPtr<BasicBlock>> basic_blocks;
NonnullOwnPtr<StringTable> string_table;
NonnullOwnPtr<IdentifierTable> identifier_table;
NonnullOwnPtr<RegexTable> regex_table;
size_t number_of_registers { 0 };
bool is_strict_mode { false };
DeprecatedString const& get_string(StringTableIndex index) const { return string_table->get(index); }
DeprecatedFlyString const& get_identifier(IdentifierTableIndex index) const { return identifier_table->get(index); }
void dump() const;
};
}