mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 09:49:15 +03:00
b0b022507b
Before this change, each AST node had a 64-byte SourceRange member.
This SourceRange had the following layout:
filename: StringView (16 bytes)
start: Position (24 bytes)
end: Position (24 bytes)
The Position structs have { line, column, offset }, all members size_t.
To reduce memory consumption, AST nodes now only store the following:
source_code: NonnullRefPtr<SourceCode> (8 bytes)
start_offset: u32 (4 bytes)
end_offset: u32 (4 bytes)
SourceCode is a new ref-counted data structure that keeps the filename
and original parsed source code in a single location, and all AST nodes
have a pointer to it.
The start_offset and end_offset can be turned into (line, column) when
necessary by calling SourceCode::range_from_offsets(). This will walk
the source code string and compute line/column numbers on the fly, so
it's not necessarily fast, but it should be rare since this information
is primarily used for diagnostics and exception stack traces.
With this, ASTNode shrinks from 80 bytes to 32 bytes. This gives us a
~23% reduction in memory usage when loading twitter.com/awesomekling
(330 MiB before, 253 MiB after!) :^)
291 lines
15 KiB
C++
291 lines
15 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2020-2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Types.h>
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#define JS_DECLARE_NATIVE_FUNCTION(name) \
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static JS::ThrowCompletionOr<JS::Value> name(JS::VM&)
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#define JS_DEFINE_NATIVE_FUNCTION(name) \
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JS::ThrowCompletionOr<JS::Value> name([[maybe_unused]] JS::VM& vm)
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// NOTE: Proxy is not included here as it doesn't have a prototype - m_proxy_constructor is initialized separately.
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#define JS_ENUMERATE_NATIVE_OBJECTS_EXCLUDING_TEMPLATES \
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__JS_ENUMERATE(AggregateError, aggregate_error, AggregateErrorPrototype, AggregateErrorConstructor, void) \
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__JS_ENUMERATE(Array, array, ArrayPrototype, ArrayConstructor, void) \
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__JS_ENUMERATE(ArrayBuffer, array_buffer, ArrayBufferPrototype, ArrayBufferConstructor, void) \
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__JS_ENUMERATE(AsyncFunction, async_function, AsyncFunctionPrototype, AsyncFunctionConstructor, void) \
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__JS_ENUMERATE(AsyncGeneratorFunction, async_generator_function, AsyncGeneratorFunctionPrototype, AsyncGeneratorFunctionConstructor, void) \
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__JS_ENUMERATE(BigIntObject, bigint, BigIntPrototype, BigIntConstructor, void) \
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__JS_ENUMERATE(BooleanObject, boolean, BooleanPrototype, BooleanConstructor, void) \
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__JS_ENUMERATE(DataView, data_view, DataViewPrototype, DataViewConstructor, void) \
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__JS_ENUMERATE(Date, date, DatePrototype, DateConstructor, void) \
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__JS_ENUMERATE(Error, error, ErrorPrototype, ErrorConstructor, void) \
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__JS_ENUMERATE(FinalizationRegistry, finalization_registry, FinalizationRegistryPrototype, FinalizationRegistryConstructor, void) \
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__JS_ENUMERATE(FunctionObject, function, FunctionPrototype, FunctionConstructor, void) \
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__JS_ENUMERATE(GeneratorFunction, generator_function, GeneratorFunctionPrototype, GeneratorFunctionConstructor, void) \
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__JS_ENUMERATE(Map, map, MapPrototype, MapConstructor, void) \
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__JS_ENUMERATE(NumberObject, number, NumberPrototype, NumberConstructor, void) \
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__JS_ENUMERATE(Object, object, ObjectPrototype, ObjectConstructor, void) \
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__JS_ENUMERATE(Promise, promise, PromisePrototype, PromiseConstructor, void) \
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__JS_ENUMERATE(RegExpObject, regexp, RegExpPrototype, RegExpConstructor, void) \
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__JS_ENUMERATE(Set, set, SetPrototype, SetConstructor, void) \
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__JS_ENUMERATE(ShadowRealm, shadow_realm, ShadowRealmPrototype, ShadowRealmConstructor, void) \
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__JS_ENUMERATE(StringObject, string, StringPrototype, StringConstructor, void) \
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__JS_ENUMERATE(SymbolObject, symbol, SymbolPrototype, SymbolConstructor, void) \
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__JS_ENUMERATE(WeakMap, weak_map, WeakMapPrototype, WeakMapConstructor, void) \
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__JS_ENUMERATE(WeakRef, weak_ref, WeakRefPrototype, WeakRefConstructor, void) \
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__JS_ENUMERATE(WeakSet, weak_set, WeakSetPrototype, WeakSetConstructor, void)
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#define JS_ENUMERATE_NATIVE_OBJECTS \
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JS_ENUMERATE_NATIVE_OBJECTS_EXCLUDING_TEMPLATES \
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__JS_ENUMERATE(TypedArray, typed_array, TypedArrayPrototype, TypedArrayConstructor, void)
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#define JS_ENUMERATE_NATIVE_ERRORS \
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__JS_ENUMERATE(EvalError, eval_error, EvalErrorPrototype, EvalErrorConstructor, void) \
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__JS_ENUMERATE(InternalError, internal_error, InternalErrorPrototype, InternalErrorConstructor, void) \
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__JS_ENUMERATE(RangeError, range_error, RangeErrorPrototype, RangeErrorConstructor, void) \
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__JS_ENUMERATE(ReferenceError, reference_error, ReferenceErrorPrototype, ReferenceErrorConstructor, void) \
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__JS_ENUMERATE(SyntaxError, syntax_error, SyntaxErrorPrototype, SyntaxErrorConstructor, void) \
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__JS_ENUMERATE(TypeError, type_error, TypeErrorPrototype, TypeErrorConstructor, void) \
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__JS_ENUMERATE(URIError, uri_error, URIErrorPrototype, URIErrorConstructor, void)
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#define JS_ENUMERATE_TYPED_ARRAYS \
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__JS_ENUMERATE(Uint8Array, uint8_array, Uint8ArrayPrototype, Uint8ArrayConstructor, u8) \
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__JS_ENUMERATE(Uint8ClampedArray, uint8_clamped_array, Uint8ClampedArrayPrototype, Uint8ClampedArrayConstructor, ClampedU8) \
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__JS_ENUMERATE(Uint16Array, uint16_array, Uint16ArrayPrototype, Uint16ArrayConstructor, u16) \
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__JS_ENUMERATE(Uint32Array, uint32_array, Uint32ArrayPrototype, Uint32ArrayConstructor, u32) \
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__JS_ENUMERATE(BigUint64Array, big_uint64_array, BigUint64ArrayPrototype, BigUint64ArrayConstructor, u64) \
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__JS_ENUMERATE(Int8Array, int8_array, Int8ArrayPrototype, Int8ArrayConstructor, i8) \
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__JS_ENUMERATE(Int16Array, int16_array, Int16ArrayPrototype, Int16ArrayConstructor, i16) \
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__JS_ENUMERATE(Int32Array, int32_array, Int32ArrayPrototype, Int32ArrayConstructor, i32) \
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__JS_ENUMERATE(BigInt64Array, big_int64_array, BigInt64ArrayPrototype, BigInt64ArrayConstructor, i64) \
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__JS_ENUMERATE(Float32Array, float32_array, Float32ArrayPrototype, Float32ArrayConstructor, float) \
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__JS_ENUMERATE(Float64Array, float64_array, Float64ArrayPrototype, Float64ArrayConstructor, double)
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#define JS_ENUMERATE_INTL_OBJECTS \
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__JS_ENUMERATE(Collator, collator, CollatorPrototype, CollatorConstructor) \
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__JS_ENUMERATE(DateTimeFormat, date_time_format, DateTimeFormatPrototype, DateTimeFormatConstructor) \
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__JS_ENUMERATE(DisplayNames, display_names, DisplayNamesPrototype, DisplayNamesConstructor) \
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__JS_ENUMERATE(DurationFormat, duration_format, DurationFormatPrototype, DurationFormatConstructor) \
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__JS_ENUMERATE(ListFormat, list_format, ListFormatPrototype, ListFormatConstructor) \
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__JS_ENUMERATE(Locale, locale, LocalePrototype, LocaleConstructor) \
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__JS_ENUMERATE(NumberFormat, number_format, NumberFormatPrototype, NumberFormatConstructor) \
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__JS_ENUMERATE(PluralRules, plural_rules, PluralRulesPrototype, PluralRulesConstructor) \
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__JS_ENUMERATE(RelativeTimeFormat, relative_time_format, RelativeTimeFormatPrototype, RelativeTimeFormatConstructor) \
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__JS_ENUMERATE(Segmenter, segmenter, SegmenterPrototype, SegmenterConstructor)
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#define JS_ENUMERATE_TEMPORAL_OBJECTS \
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__JS_ENUMERATE(Calendar, calendar, CalendarPrototype, CalendarConstructor) \
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__JS_ENUMERATE(Duration, duration, DurationPrototype, DurationConstructor) \
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__JS_ENUMERATE(Instant, instant, InstantPrototype, InstantConstructor) \
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__JS_ENUMERATE(PlainDate, plain_date, PlainDatePrototype, PlainDateConstructor) \
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__JS_ENUMERATE(PlainDateTime, plain_date_time, PlainDateTimePrototype, PlainDateTimeConstructor) \
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__JS_ENUMERATE(PlainMonthDay, plain_month_day, PlainMonthDayPrototype, PlainMonthDayConstructor) \
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__JS_ENUMERATE(PlainTime, plain_time, PlainTimePrototype, PlainTimeConstructor) \
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__JS_ENUMERATE(PlainYearMonth, plain_year_month, PlainYearMonthPrototype, PlainYearMonthConstructor) \
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__JS_ENUMERATE(TimeZone, time_zone, TimeZonePrototype, TimeZoneConstructor) \
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__JS_ENUMERATE(ZonedDateTime, zoned_date_time, ZonedDateTimePrototype, ZonedDateTimeConstructor)
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#define JS_ENUMERATE_BUILTIN_NAMESPACE_OBJECTS \
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__JS_ENUMERATE(AtomicsObject, atomics) \
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__JS_ENUMERATE(ConsoleObject, console) \
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__JS_ENUMERATE(Intl::Intl, intl) \
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__JS_ENUMERATE(JSONObject, json) \
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__JS_ENUMERATE(MathObject, math) \
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__JS_ENUMERATE(ReflectObject, reflect) \
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__JS_ENUMERATE(Temporal::Temporal, temporal)
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#define JS_ENUMERATE_ITERATOR_PROTOTYPES \
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__JS_ENUMERATE(Iterator, iterator) \
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__JS_ENUMERATE(ArrayIterator, array_iterator) \
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__JS_ENUMERATE(AsyncIterator, async_iterator) \
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__JS_ENUMERATE(Intl::SegmentIterator, intl_segment_iterator) \
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__JS_ENUMERATE(MapIterator, map_iterator) \
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__JS_ENUMERATE(RegExpStringIterator, regexp_string_iterator) \
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__JS_ENUMERATE(SetIterator, set_iterator) \
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__JS_ENUMERATE(StringIterator, string_iterator)
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#define JS_ENUMERATE_BUILTIN_TYPES \
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JS_ENUMERATE_NATIVE_OBJECTS \
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JS_ENUMERATE_NATIVE_ERRORS \
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JS_ENUMERATE_TYPED_ARRAYS
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#define JS_ENUMERATE_WELL_KNOWN_SYMBOLS \
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__JS_ENUMERATE(iterator, iterator) \
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__JS_ENUMERATE(asyncIterator, async_iterator) \
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__JS_ENUMERATE(match, match) \
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__JS_ENUMERATE(matchAll, match_all) \
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__JS_ENUMERATE(replace, replace) \
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__JS_ENUMERATE(replaceAll, replace_all) \
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__JS_ENUMERATE(search, search) \
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__JS_ENUMERATE(split, split) \
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__JS_ENUMERATE(hasInstance, has_instance) \
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__JS_ENUMERATE(isConcatSpreadable, is_concat_spreadable) \
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__JS_ENUMERATE(unscopables, unscopables) \
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__JS_ENUMERATE(species, species) \
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__JS_ENUMERATE(toPrimitive, to_primitive) \
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__JS_ENUMERATE(toStringTag, to_string_tag)
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#define JS_ENUMERATE_REGEXP_FLAGS \
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__JS_ENUMERATE(hasIndices, has_indices, d) \
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__JS_ENUMERATE(global, global, g) \
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__JS_ENUMERATE(ignoreCase, ignore_case, i) \
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__JS_ENUMERATE(multiline, multiline, m) \
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__JS_ENUMERATE(dotAll, dot_all, s) \
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__JS_ENUMERATE(unicodeSets, unicode_sets, v) \
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__JS_ENUMERATE(unicode, unicode, u) \
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__JS_ENUMERATE(sticky, sticky, y)
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namespace JS {
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class ASTNode;
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class Accessor;
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class BigInt;
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class BoundFunction;
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class Cell;
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class CellAllocator;
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class ClassExpression;
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struct ClassFieldDefinition;
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class Completion;
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class Console;
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class DeclarativeEnvironment;
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class DeferGC;
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class ECMAScriptFunctionObject;
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class Environment;
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class Error;
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class ErrorType;
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struct ExecutionContext;
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class Expression;
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class FunctionEnvironment;
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class FunctionNode;
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class GlobalEnvironment;
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class GlobalObject;
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class HandleImpl;
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class Heap;
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class HeapBlock;
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class Interpreter;
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class Intrinsics;
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class Module;
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class NativeFunction;
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class ObjectEnvironment;
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class PrimitiveString;
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class PromiseCapability;
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class PromiseReaction;
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class PropertyAttributes;
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class PropertyDescriptor;
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class PropertyKey;
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class Realm;
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class Reference;
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class ScopeNode;
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class Script;
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class Shape;
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class Statement;
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class StringOrSymbol;
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class SourceCode;
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struct SourceRange;
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class SourceTextModule;
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class Symbol;
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class Token;
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class Utf16String;
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class VM;
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class Value;
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class WeakContainer;
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class WrappedFunction;
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enum class DeclarationKind;
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struct AlreadyResolved;
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struct JobCallback;
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struct ModuleRequest;
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// Not included in JS_ENUMERATE_NATIVE_OBJECTS due to missing distinct prototype
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class ProxyObject;
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class ProxyConstructor;
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// Not included in JS_ENUMERATE_NATIVE_OBJECTS due to missing distinct constructor
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class AsyncFromSyncIteratorPrototype;
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class AsyncGenerator;
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class AsyncGeneratorPrototype;
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class GeneratorPrototype;
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class TypedArrayConstructor;
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class TypedArrayPrototype;
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class AtomicsObject;
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class ConsoleObject;
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class JSONObject;
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class MathObject;
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class ReflectObject;
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// Tag type used to differentiate between u8 as used by Uint8Array and u8 as used by Uint8ClampedArray.
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struct ClampedU8;
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#define __JS_ENUMERATE(ClassName, snake_name, ConstructorName, PrototypeName, ArrayType) \
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class ClassName; \
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class ConstructorName; \
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class PrototypeName;
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JS_ENUMERATE_NATIVE_OBJECTS_EXCLUDING_TEMPLATES
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JS_ENUMERATE_NATIVE_ERRORS
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JS_ENUMERATE_TYPED_ARRAYS
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#undef __JS_ENUMERATE
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#define __JS_ENUMERATE(ClassName, snake_name) \
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class ClassName; \
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JS_ENUMERATE_BUILTIN_NAMESPACE_OBJECTS
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#undef __JS_ENUMERATE
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namespace Intl {
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#define __JS_ENUMERATE(ClassName, snake_name, ConstructorName, PrototypeName) \
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class ClassName; \
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class ConstructorName; \
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class PrototypeName;
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JS_ENUMERATE_INTL_OBJECTS
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#undef __JS_ENUMERATE
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class Intl;
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class MathematicalValue;
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// Not included in JS_ENUMERATE_INTL_OBJECTS due to missing distinct constructor
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class Segments;
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class SegmentsPrototype;
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};
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namespace Temporal {
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#define __JS_ENUMERATE(ClassName, snake_name, ConstructorName, PrototypeName) \
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class ClassName; \
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class ConstructorName; \
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class PrototypeName;
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JS_ENUMERATE_TEMPORAL_OBJECTS
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#undef __JS_ENUMERATE
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class Temporal;
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struct DurationRecord;
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struct DateDurationRecord;
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struct TimeDurationRecord;
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struct PartialDurationRecord;
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};
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template<typename T>
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class ThrowCompletionOr;
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template<class T>
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class Handle;
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template<class T, size_t inline_capacity = 32>
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class MarkedVector;
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namespace Bytecode {
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class BasicBlock;
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struct Executable;
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class Generator;
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class Instruction;
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class Interpreter;
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class Register;
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}
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}
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