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LibJS: Avoid expensive UTF-8/16 conversion in legacy RegExp properties

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Let's not incur the cost of a synchronous conversion to UTF-8 for all
the legacy static properties after running a regular expression.

The SunSpider subtest regexp-dna goes from taking ~25 sec to ~0.7 sec
on my machine.
This commit is contained in:
Andreas Kling 2022-10-19 15:35:35 +02:00 • committed by Linus Groh
parent e1fb64abad
commit f39b6ae3c6
3 changed files with 70 additions and 68 deletions
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91
Userland/Libraries/LibJS/Runtime/RegExpLegacyStaticProperties.h
View file

@ -9,6 +9,7 @@
#include <AK/Optional.h>
#include <AK/String.h>
#include <LibJS/Forward.h>
#include <LibJS/Runtime/Utf16String.h>
namespace JS {
@ -22,57 +23,57 @@ namespace JS {
// [[RegExpParen1]] ... [[RegExpParen9]]
class RegExpLegacyStaticProperties {
public:
Optional<String> const& input() const { return m_input; }
Optional<String> const& last_match() const { return m_last_match; }
Optional<String> const& last_paren() const { return m_last_paren; }
Optional<String> const& left_context() const { return m_left_context; }
Optional<String> const& right_context() const { return m_right_context; }
Optional<String> const& $1() const { return m_$1; }
Optional<String> const& $2() const { return m_$2; }
Optional<String> const& $3() const { return m_$3; }
Optional<String> const& $4() const { return m_$4; }
Optional<String> const& $5() const { return m_$5; }
Optional<String> const& $6() const { return m_$6; }
Optional<String> const& $7() const { return m_$7; }
Optional<String> const& $8() const { return m_$8; }
Optional<String> const& $9() const { return m_$9; }
Optional<Utf16String> const& input() const { return m_input; }
Optional<Utf16String> const& last_match() const { return m_last_match; }
Optional<Utf16String> const& last_paren() const { return m_last_paren; }
Optional<Utf16String> const& left_context() const { return m_left_context; }
Optional<Utf16String> const& right_context() const { return m_right_context; }
Optional<Utf16String> const& $1() const { return m_$1; }
Optional<Utf16String> const& $2() const { return m_$2; }
Optional<Utf16String> const& $3() const { return m_$3; }
Optional<Utf16String> const& $4() const { return m_$4; }
Optional<Utf16String> const& $5() const { return m_$5; }
Optional<Utf16String> const& $6() const { return m_$6; }
Optional<Utf16String> const& $7() const { return m_$7; }
Optional<Utf16String> const& $8() const { return m_$8; }
Optional<Utf16String> const& $9() const { return m_$9; }
void set_input(String input) { m_input = move(input); }
void set_last_match(String last_match) { m_last_match = move(last_match); }
void set_last_paren(String last_paren) { m_last_paren = move(last_paren); }
void set_left_context(String left_context) { m_left_context = move(left_context); }
void set_right_context(String right_context) { m_right_context = move(right_context); }
void set_$1(String value) { m_$1 = move(value); }
void set_$2(String value) { m_$2 = move(value); }
void set_$3(String value) { m_$3 = move(value); }
void set_$4(String value) { m_$4 = move(value); }
void set_$5(String value) { m_$5 = move(value); }
void set_$6(String value) { m_$6 = move(value); }
void set_$7(String value) { m_$7 = move(value); }
void set_$8(String value) { m_$8 = move(value); }
void set_$9(String value) { m_$9 = move(value); }
void set_input(Utf16String input) { m_input = move(input); }
void set_last_match(Utf16String last_match) { m_last_match = move(last_match); }
void set_last_paren(Utf16String last_paren) { m_last_paren = move(last_paren); }
void set_left_context(Utf16String left_context) { m_left_context = move(left_context); }
void set_right_context(Utf16String right_context) { m_right_context = move(right_context); }
void set_$1(Utf16String value) { m_$1 = move(value); }
void set_$2(Utf16String value) { m_$2 = move(value); }
void set_$3(Utf16String value) { m_$3 = move(value); }
void set_$4(Utf16String value) { m_$4 = move(value); }
void set_$5(Utf16String value) { m_$5 = move(value); }
void set_$6(Utf16String value) { m_$6 = move(value); }
void set_$7(Utf16String value) { m_$7 = move(value); }
void set_$8(Utf16String value) { m_$8 = move(value); }
void set_$9(Utf16String value) { m_$9 = move(value); }
void invalidate();
private:
Optional<String> m_input;
Optional<String> m_last_match;
Optional<String> m_last_paren;
Optional<String> m_left_context;
Optional<String> m_right_context;
Optional<String> m_$1;
Optional<String> m_$2;
Optional<String> m_$3;
Optional<String> m_$4;
Optional<String> m_$5;
Optional<String> m_$6;
Optional<String> m_$7;
Optional<String> m_$8;
Optional<String> m_$9;
Optional<Utf16String> m_input;
Optional<Utf16String> m_last_match;
Optional<Utf16String> m_last_paren;
Optional<Utf16String> m_left_context;
Optional<Utf16String> m_right_context;
Optional<Utf16String> m_$1;
Optional<Utf16String> m_$2;
Optional<Utf16String> m_$3;
Optional<Utf16String> m_$4;
Optional<Utf16String> m_$5;
Optional<Utf16String> m_$6;
Optional<Utf16String> m_$7;
Optional<Utf16String> m_$8;
Optional<Utf16String> m_$9;
};
ThrowCompletionOr<void> set_legacy_regexp_static_property(VM& vm, RegExpConstructor& constructor, Value this_value, void (RegExpLegacyStaticProperties::*property_setter)(String), Value value);
ThrowCompletionOr<Value> get_legacy_regexp_static_property(VM& vm, RegExpConstructor& constructor, Value this_value, Optional<String> const& (RegExpLegacyStaticProperties::*property_getter)() const);
void update_legacy_regexp_static_properties(RegExpConstructor& constructor, Utf16String const& string, size_t start_index, size_t end_index, Vector<String> const& captured_values);
ThrowCompletionOr<void> set_legacy_regexp_static_property(VM& vm, RegExpConstructor& constructor, Value this_value, void (RegExpLegacyStaticProperties::*property_setter)(Utf16String), Value value);
ThrowCompletionOr<Value> get_legacy_regexp_static_property(VM& vm, RegExpConstructor& constructor, Value this_value, Optional<Utf16String> const& (RegExpLegacyStaticProperties::*property_getter)() const);
void update_legacy_regexp_static_properties(RegExpConstructor& constructor, Utf16String const& string, size_t start_index, size_t end_index, Vector<Utf16String> const& captured_values);
void invalidate_legacy_regexp_static_properties(RegExpConstructor& constructor);
}