ITStudio_OUC/OxideJS-New
0
1
Fork 0
mirror of https://github.com/pjh456/OxideJS.git synced 2026-10-23 18:21:13 +08:00
Code Issues Packages Projects Releases Wiki Activity
Files
fc5950511629a1a3e46ad1e92ca192a8fff24d50
OxideJS-New/crates/oxide_kernel/src/kernel.rs
T

738 lines
27 KiB
Rust
Raw Blame History

#![allow(clippy::arc_with_non_send_sync)]
use std::num::NonZeroUsize;
use std::sync::Arc;
use oxide_types::mem::P;
use oxide_types::object::JsObject;
use oxide_types::value::JsValue;
use crate::builtin::BuiltinWorld;
use crate::code_forge::CodeForge;
use crate::kernel_info;
use crate::prop_forge::PropForge;
use crate::shape_forge::{ShapeForge, EMPTY_SHAPE_ID};
use crate::string_forge::PermInterner;
use oxide_log;
use oxide_log::{Level, SUBSYSTEM_COUNT};
#[derive(Clone)]
pub struct KernelConfig {
pub min_pool_size: usize,
pub max_pool_size: Option<usize>,
pub max_dead_strings: Option<usize>,
pub max_steps: Option<u64>,
pub max_call_depth: usize,
pub session_gc_threshold: usize,
pub max_cached_modules: usize,
pub log_levels: [Level; SUBSYSTEM_COUNT],
pub warmup_builtin_shapes: bool,
pub warmup_builtin_code: bool,
pub warmup_builtin_ic: bool,
}
impl KernelConfig {
pub fn minimal() -> Self {
Self {
min_pool_size: 4,
max_pool_size: Some(8),
max_dead_strings: Some(10_000),
max_steps: None,
max_call_depth: 1024,
session_gc_threshold: 8_388_608,
max_cached_modules: 512,
log_levels: [Level::Off; SUBSYSTEM_COUNT],
warmup_builtin_shapes: true,
warmup_builtin_code: false,
warmup_builtin_ic: false,
}
}
pub fn standard() -> Self {
Self {
min_pool_size: 8,
max_pool_size: Some(32),
max_dead_strings: Some(10_000),
max_steps: None,
max_call_depth: 1024,
session_gc_threshold: 8_388_608,
max_cached_modules: 512,
log_levels: [Level::Off; SUBSYSTEM_COUNT],
warmup_builtin_shapes: true,
warmup_builtin_code: true,
warmup_builtin_ic: false,
}
}
pub fn full() -> Self {
Self {
min_pool_size: 16,
max_pool_size: None,
max_dead_strings: Some(5_000),
max_steps: None,
max_call_depth: 1024,
session_gc_threshold: 8_388_608,
max_cached_modules: 512,
log_levels: [Level::Off; SUBSYSTEM_COUNT],
warmup_builtin_shapes: true,
warmup_builtin_code: true,
warmup_builtin_ic: true,
}
}
pub fn session_gc_threshold(&self) -> usize {
self.session_gc_threshold
}
pub fn set_session_gc_threshold(&mut self, bytes: usize) {
self.session_gc_threshold = bytes;
}
pub fn max_cached_modules(&self) -> usize {
self.max_cached_modules
}
pub fn set_max_cached_modules(&mut self, cap: usize) {
self.max_cached_modules = cap;
}
}
impl Default for KernelConfig {
fn default() -> Self {
Self::minimal()
}
}
/// Immutable, permanently shared state across all VM instances.
/// Never rebuilt after construction — forge tables are append-only.
pub struct KernelCore {
pub config: KernelConfig,
pub perm_interner: Arc<PermInterner>,
pub shape_forge: Arc<ShapeForge>,
pub code_forge: Arc<CodeForge>,
pub prop_forge: Arc<PropForge>,
}
impl KernelCore {
pub fn new(config: KernelConfig) -> Arc<Self> {
oxide_log::init(&oxide_log::LogConfig {
output: oxide_log::Output::Stderr,
levels: config.log_levels,
});
let perm_interner = Arc::new(PermInterner::new());
let shape_forge = Arc::new(ShapeForge::new());
let code_forge = Arc::new(CodeForge::new(
NonZeroUsize::new(config.max_cached_modules).expect("max_cached_modules must be greater than zero"),
));
let prop_forge = Arc::new(PropForge::new());
let max_cached = config.max_cached_modules;
let min_pool = config.min_pool_size;
let core = Arc::new(Self {
config,
perm_interner,
shape_forge,
code_forge,
prop_forge,
});
kernel_info!("KernelCore initialized: max_cached_modules={}, min_pool={}", max_cached, min_pool);
core
}
pub fn perm_interner(&self) -> &Arc<PermInterner> {
&self.perm_interner
}
pub fn shape_forge(&self) -> &Arc<ShapeForge> {
&self.shape_forge
}
pub fn code_forge(&self) -> &Arc<CodeForge> {
&self.code_forge
}
pub fn prop_forge(&self) -> &Arc<PropForge> {
&self.prop_forge
}
pub fn config(&self) -> &KernelConfig {
&self.config
}
pub fn session_gc_threshold(&self) -> usize {
self.config.session_gc_threshold
}
pub fn set_session_gc_threshold(&mut self, bytes: usize) {
self.config.session_gc_threshold = bytes;
}
pub fn max_cached_modules(&self) -> usize {
self.config.max_cached_modules
}
pub fn set_max_cached_modules(&mut self, cap: usize) {
self.config.max_cached_modules = cap;
}
pub fn sweep_runner_forges(&self) {
// The key interner is append-only (no per-run sweep); only the transient
// shape/prop tables need bounding at the test262 per-test boundary.
// test262 creates a fresh VM/session per test. At this boundary no JS object
// from prior tests may retain transient shapes/templates.
if self.shape_forge.len() > 50_000 {
self.shape_forge.clear_transient();
self.prop_forge.clear();
} else if self.prop_forge.len() > 50_000 {
self.prop_forge.clear();
}
}
}
/// Per-session mutable state: builtin prototype objects and the global object.
/// Rebuilt on full_reset() to achieve complete isolation between JS executions.
pub struct KernelSession {
pub builtin_world: Arc<BuiltinWorld>,
pub global_object: P<JsObject>,
pub builtin_snapshot: BuiltinSnapshot,
}
/// Generation snapshot for reset dirty checks.
///
/// Maintenance: every new `BuiltinWorld` object field must be added here and to
/// `KernelSession::dirty_since_snapshot()` so selective reset can rebuild the
/// correct builtin family.
pub const NUM_BUILTINS: usize = 64;
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
#[repr(u8)]
pub enum BuiltinId {
ObjectProto = 0,
ArrayProto = 1,
FunctionProto = 2,
StringProto = 3,
NumberProto = 4,
BooleanProto = 5,
ErrorProto = 6,
SymbolProto = 7,
ObjectConstructor = 8,
ArrayConstructor = 9,
FunctionConstructor = 10,
StringConstructor = 11,
NumberConstructor = 12,
BooleanConstructor = 13,
ErrorConstructor = 14,
SymbolConstructor = 15,
TypeErrorProto = 16,
ReferenceErrorProto = 17,
RangeErrorProto = 18,
SyntaxErrorProto = 19,
UriErrorProto = 20,
EvalErrorProto = 21,
MathObject = 22,
JsonObject = 23,
DateConstructor = 24,
DateProto = 25,
SetConstructor = 26,
SetProto = 27,
MapConstructor = 28,
MapProto = 29,
RegExpConstructor = 30,
RegExpProto = 31,
ArrayBufferConstructor = 32,
ArrayBufferProto = 33,
DataViewConstructor = 34,
DataViewProto = 35,
TypedArrayProto = 36,
Int8ArrayConstructor = 37,
Int8ArrayProto = 38,
Uint8ArrayConstructor = 39,
Uint8ArrayProto = 40,
Uint8ClampedArrayConstructor = 41,
Uint8ClampedArrayProto = 42,
Int16ArrayConstructor = 43,
Int16ArrayProto = 44,
Uint16ArrayConstructor = 45,
Uint16ArrayProto = 46,
Int32ArrayConstructor = 47,
Int32ArrayProto = 48,
Uint32ArrayConstructor = 49,
Uint32ArrayProto = 50,
Float32ArrayConstructor = 51,
Float32ArrayProto = 52,
Float64ArrayConstructor = 53,
Float64ArrayProto = 54,
BigInt64ArrayConstructor = 55,
BigInt64ArrayProto = 56,
BigUint64ArrayConstructor = 57,
BigUint64ArrayProto = 58,
SymMatch = 59,
SymReplace = 60,
SymSearch = 61,
SymSplit = 62,
SymIterator = 63,
}
impl BuiltinId {
pub const ALL: [BuiltinId; NUM_BUILTINS] = [
BuiltinId::ObjectProto,
BuiltinId::ArrayProto,
BuiltinId::FunctionProto,
BuiltinId::StringProto,
BuiltinId::NumberProto,
BuiltinId::BooleanProto,
BuiltinId::ErrorProto,
BuiltinId::SymbolProto,
BuiltinId::ObjectConstructor,
BuiltinId::ArrayConstructor,
BuiltinId::FunctionConstructor,
BuiltinId::StringConstructor,
BuiltinId::NumberConstructor,
BuiltinId::BooleanConstructor,
BuiltinId::ErrorConstructor,
BuiltinId::SymbolConstructor,
BuiltinId::TypeErrorProto,
BuiltinId::ReferenceErrorProto,
BuiltinId::RangeErrorProto,
BuiltinId::SyntaxErrorProto,
BuiltinId::UriErrorProto,
BuiltinId::EvalErrorProto,
BuiltinId::MathObject,
BuiltinId::JsonObject,
BuiltinId::DateConstructor,
BuiltinId::DateProto,
BuiltinId::SetConstructor,
BuiltinId::SetProto,
BuiltinId::MapConstructor,
BuiltinId::MapProto,
BuiltinId::RegExpConstructor,
BuiltinId::RegExpProto,
BuiltinId::ArrayBufferConstructor,
BuiltinId::ArrayBufferProto,
BuiltinId::DataViewConstructor,
BuiltinId::DataViewProto,
BuiltinId::TypedArrayProto,
BuiltinId::Int8ArrayConstructor,
BuiltinId::Int8ArrayProto,
BuiltinId::Uint8ArrayConstructor,
BuiltinId::Uint8ArrayProto,
BuiltinId::Uint8ClampedArrayConstructor,
BuiltinId::Uint8ClampedArrayProto,
BuiltinId::Int16ArrayConstructor,
BuiltinId::Int16ArrayProto,
BuiltinId::Uint16ArrayConstructor,
BuiltinId::Uint16ArrayProto,
BuiltinId::Int32ArrayConstructor,
BuiltinId::Int32ArrayProto,
BuiltinId::Uint32ArrayConstructor,
BuiltinId::Uint32ArrayProto,
BuiltinId::Float32ArrayConstructor,
BuiltinId::Float32ArrayProto,
BuiltinId::Float64ArrayConstructor,
BuiltinId::Float64ArrayProto,
BuiltinId::BigInt64ArrayConstructor,
BuiltinId::BigInt64ArrayProto,
BuiltinId::BigUint64ArrayConstructor,
BuiltinId::BigUint64ArrayProto,
BuiltinId::SymMatch,
BuiltinId::SymReplace,
BuiltinId::SymSearch,
BuiltinId::SymSplit,
BuiltinId::SymIterator,
];
}
#[derive(Clone, Debug)]
pub struct BuiltinSnapshot {
pub generations: [u32; NUM_BUILTINS],
pub global_object_generation: u32,
pub stub_objects_len: usize,
pub stub_object_generations: Vec<u32>,
}
impl BuiltinSnapshot {
fn gen(obj: &P<JsObject>) -> u32 {
obj.generation()
}
pub fn new(world: &BuiltinWorld, global_object: &P<JsObject>) -> Self {
let mut generations = [0u32; NUM_BUILTINS];
for (i, id) in BuiltinId::ALL.iter().enumerate() {
generations[i] = Self::gen(world.get_by_id(*id));
}
debug_assert_eq!(generations.len(), NUM_BUILTINS);
Self {
generations,
global_object_generation: Self::gen(global_object),
stub_objects_len: world.stub_objects.len(),
stub_object_generations: world.stub_objects.iter().map(Self::gen).collect(),
}
}
}
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
pub struct BuiltinDirtySet {
pub object: bool,
pub array: bool,
pub function: bool,
pub string: bool,
pub number: bool,
pub boolean: bool,
pub error_family: bool,
pub symbol_family: bool,
pub math: bool,
pub json: bool,
pub date: bool,
pub set: bool,
pub map: bool,
pub regexp: bool,
pub array_buffer: bool,
pub data_view: bool,
pub typed_array_family: bool,
pub stubs: bool,
pub global: bool,
}
impl BuiltinDirtySet {
pub fn any_builtin_dirty(&self) -> bool {
self.object
|| self.array
|| self.function
|| self.string
|| self.number
|| self.boolean
|| self.error_family
|| self.symbol_family
|| self.math
|| self.json
|| self.date
|| self.set
|| self.map
|| self.regexp
|| self.array_buffer
|| self.data_view
|| self.typed_array_family
|| self.stubs
}
pub fn any(&self) -> bool {
self.any_builtin_dirty() || self.global
}
}
impl KernelSession {
fn new_global_object(core: &KernelCore) -> P<JsObject> {
let mut global_obj = JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null());
let si_nan = core.perm_interner.intern("NaN").0;
let si_undef = core.perm_interner.intern("undefined").0;
let si_infinity = core.perm_interner.intern("Infinity").0;
let nan_shape = core.shape_forge.make_shape(EMPTY_SHAPE_ID, si_nan);
global_obj.set_shape_id(nan_shape);
global_obj.ensure_hash_props().push(JsValue::float(f64::NAN));
let undef_shape = core.shape_forge.make_shape(nan_shape, si_undef);
global_obj.set_shape_id(undef_shape);
global_obj.ensure_hash_props().push(JsValue::undefined());
let inf_shape = core.shape_forge.make_shape(undef_shape, si_infinity);
global_obj.set_shape_id(inf_shape);
global_obj.ensure_hash_props().push(JsValue::float(f64::INFINITY));
P::new(global_obj)
}
/// Build a fresh session from a KernelCore. All string/shape intern calls hit
/// cache on second and subsequent calls — net cost is < 0.5 ms.
pub fn new(core: &KernelCore) -> Self {
let builtin_world = Arc::new(BuiltinWorld::new(&core.perm_interner, &core.shape_forge));
let global_object = Self::new_global_object(core);
let builtin_snapshot = BuiltinSnapshot::new(&builtin_world, &global_object);
Self {
builtin_world,
global_object,
builtin_snapshot,
}
}
pub fn builtin_world(&self) -> &Arc<BuiltinWorld> {
&self.builtin_world
}
pub fn global_object(&self) -> &P<JsObject> {
&self.global_object
}
pub fn record_snapshot(&mut self) {
self.builtin_snapshot = BuiltinSnapshot::new(&self.builtin_world, &self.global_object);
}
pub fn dirty_since_snapshot(&self) -> BuiltinDirtySet {
let world = self.builtin_world.as_ref();
let snapshot = &self.builtin_snapshot;
let stub_generations_dirty = world
.stub_objects
.iter()
.zip(snapshot.stub_object_generations.iter())
.any(|(obj, generation)| BuiltinSnapshot::gen(obj) != *generation);
let gen = |id: BuiltinId| BuiltinSnapshot::gen(world.get_by_id(id));
let snap = |id: BuiltinId| snapshot.generations[id as usize];
BuiltinDirtySet {
object: gen(BuiltinId::ObjectProto) != snap(BuiltinId::ObjectProto)
|| gen(BuiltinId::ObjectConstructor) != snap(BuiltinId::ObjectConstructor),
array: gen(BuiltinId::ArrayProto) != snap(BuiltinId::ArrayProto)
|| gen(BuiltinId::ArrayConstructor) != snap(BuiltinId::ArrayConstructor),
function: gen(BuiltinId::FunctionProto) != snap(BuiltinId::FunctionProto)
|| gen(BuiltinId::FunctionConstructor) != snap(BuiltinId::FunctionConstructor),
string: gen(BuiltinId::StringProto) != snap(BuiltinId::StringProto)
|| gen(BuiltinId::StringConstructor) != snap(BuiltinId::StringConstructor),
number: gen(BuiltinId::NumberProto) != snap(BuiltinId::NumberProto)
|| gen(BuiltinId::NumberConstructor) != snap(BuiltinId::NumberConstructor),
boolean: gen(BuiltinId::BooleanProto) != snap(BuiltinId::BooleanProto)
|| gen(BuiltinId::BooleanConstructor) != snap(BuiltinId::BooleanConstructor),
error_family: gen(BuiltinId::ErrorProto) != snap(BuiltinId::ErrorProto)
|| gen(BuiltinId::ErrorConstructor) != snap(BuiltinId::ErrorConstructor)
|| gen(BuiltinId::TypeErrorProto) != snap(BuiltinId::TypeErrorProto)
|| gen(BuiltinId::ReferenceErrorProto) != snap(BuiltinId::ReferenceErrorProto)
|| gen(BuiltinId::RangeErrorProto) != snap(BuiltinId::RangeErrorProto)
|| gen(BuiltinId::SyntaxErrorProto) != snap(BuiltinId::SyntaxErrorProto)
|| gen(BuiltinId::UriErrorProto) != snap(BuiltinId::UriErrorProto)
|| gen(BuiltinId::EvalErrorProto) != snap(BuiltinId::EvalErrorProto),
symbol_family: gen(BuiltinId::SymbolProto) != snap(BuiltinId::SymbolProto)
|| gen(BuiltinId::SymbolConstructor) != snap(BuiltinId::SymbolConstructor)
|| gen(BuiltinId::SymMatch) != snap(BuiltinId::SymMatch)
|| gen(BuiltinId::SymReplace) != snap(BuiltinId::SymReplace)
|| gen(BuiltinId::SymSearch) != snap(BuiltinId::SymSearch)
|| gen(BuiltinId::SymSplit) != snap(BuiltinId::SymSplit)
|| gen(BuiltinId::SymIterator) != snap(BuiltinId::SymIterator),
math: gen(BuiltinId::MathObject) != snap(BuiltinId::MathObject),
json: gen(BuiltinId::JsonObject) != snap(BuiltinId::JsonObject),
date: gen(BuiltinId::DateConstructor) != snap(BuiltinId::DateConstructor)
|| gen(BuiltinId::DateProto) != snap(BuiltinId::DateProto),
set: gen(BuiltinId::SetConstructor) != snap(BuiltinId::SetConstructor)
|| gen(BuiltinId::SetProto) != snap(BuiltinId::SetProto),
map: gen(BuiltinId::MapConstructor) != snap(BuiltinId::MapConstructor)
|| gen(BuiltinId::MapProto) != snap(BuiltinId::MapProto),
regexp: gen(BuiltinId::RegExpConstructor) != snap(BuiltinId::RegExpConstructor)
|| gen(BuiltinId::RegExpProto) != snap(BuiltinId::RegExpProto),
array_buffer: gen(BuiltinId::ArrayBufferConstructor) != snap(BuiltinId::ArrayBufferConstructor)
|| gen(BuiltinId::ArrayBufferProto) != snap(BuiltinId::ArrayBufferProto),
data_view: gen(BuiltinId::DataViewConstructor) != snap(BuiltinId::DataViewConstructor)
|| gen(BuiltinId::DataViewProto) != snap(BuiltinId::DataViewProto),
typed_array_family: gen(BuiltinId::TypedArrayProto) != snap(BuiltinId::TypedArrayProto)
|| gen(BuiltinId::Int8ArrayConstructor) != snap(BuiltinId::Int8ArrayConstructor)
|| gen(BuiltinId::Int8ArrayProto) != snap(BuiltinId::Int8ArrayProto)
|| gen(BuiltinId::Uint8ArrayConstructor) != snap(BuiltinId::Uint8ArrayConstructor)
|| gen(BuiltinId::Uint8ArrayProto) != snap(BuiltinId::Uint8ArrayProto)
|| gen(BuiltinId::Uint8ClampedArrayConstructor) != snap(BuiltinId::Uint8ClampedArrayConstructor)
|| gen(BuiltinId::Uint8ClampedArrayProto) != snap(BuiltinId::Uint8ClampedArrayProto)
|| gen(BuiltinId::Int16ArrayConstructor) != snap(BuiltinId::Int16ArrayConstructor)
|| gen(BuiltinId::Int16ArrayProto) != snap(BuiltinId::Int16ArrayProto)
|| gen(BuiltinId::Uint16ArrayConstructor) != snap(BuiltinId::Uint16ArrayConstructor)
|| gen(BuiltinId::Uint16ArrayProto) != snap(BuiltinId::Uint16ArrayProto)
|| gen(BuiltinId::Int32ArrayConstructor) != snap(BuiltinId::Int32ArrayConstructor)
|| gen(BuiltinId::Int32ArrayProto) != snap(BuiltinId::Int32ArrayProto)
|| gen(BuiltinId::Uint32ArrayConstructor) != snap(BuiltinId::Uint32ArrayConstructor)
|| gen(BuiltinId::Uint32ArrayProto) != snap(BuiltinId::Uint32ArrayProto)
|| gen(BuiltinId::Float32ArrayConstructor) != snap(BuiltinId::Float32ArrayConstructor)
|| gen(BuiltinId::Float32ArrayProto) != snap(BuiltinId::Float32ArrayProto)
|| gen(BuiltinId::Float64ArrayConstructor) != snap(BuiltinId::Float64ArrayConstructor)
|| gen(BuiltinId::Float64ArrayProto) != snap(BuiltinId::Float64ArrayProto)
|| gen(BuiltinId::BigInt64ArrayConstructor) != snap(BuiltinId::BigInt64ArrayConstructor)
|| gen(BuiltinId::BigInt64ArrayProto) != snap(BuiltinId::BigInt64ArrayProto)
|| gen(BuiltinId::BigUint64ArrayConstructor) != snap(BuiltinId::BigUint64ArrayConstructor)
|| gen(BuiltinId::BigUint64ArrayProto) != snap(BuiltinId::BigUint64ArrayProto),
stubs: world.stub_objects.len() != snapshot.stub_objects_len || stub_generations_dirty,
global: BuiltinSnapshot::gen(&self.global_object) != snapshot.global_object_generation,
}
}
pub fn is_dirty_since_snapshot(&self) -> bool {
self.dirty_since_snapshot().any()
}
pub fn selective_reset(&mut self, core: &Arc<KernelCore>) -> BuiltinDirtySet {
let dirty = self.dirty_since_snapshot();
if dirty.global {
self.global_object = Self::new_global_object(core);
}
if dirty.any_builtin_dirty() {
self.builtin_world = Arc::new(BuiltinWorld::rebuild_with_dirty(
&self.builtin_world,
core.perm_interner.as_ref(),
core.shape_forge.as_ref(),
&dirty,
));
}
dirty
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::shape_forge::EMPTY_SHAPE_ID;
#[test]
fn test_kernel_new() {
let core = KernelCore::new(KernelConfig::minimal());
let (i1, _) = core.perm_interner().intern("test");
let (i2, _) = core.perm_interner().intern("test");
assert_eq!(i1, i2);
}
#[test]
fn test_kernel_builtins_accessible() {
let core = KernelCore::new(KernelConfig::minimal());
let session = KernelSession::new(&core);
assert!(!session.builtin_world().object_proto.is_function());
assert!(session.builtin_world().object_constructor.is_function());
}
#[test]
fn test_kernel_shape_forge() {
let core = KernelCore::new(KernelConfig::minimal());
assert!(core.shape_forge().get_shape(EMPTY_SHAPE_ID).is_some());
}
#[test]
fn test_kernel_string_forge() {
let core = KernelCore::new(KernelConfig::minimal());
let (i1, _) = core.perm_interner().intern("hello");
let (i2, _) = core.perm_interner().intern("hello");
assert_eq!(i1, i2);
}
#[test]
fn test_kernel_config_presets() {
assert_eq!(KernelConfig::minimal().max_pool_size, Some(8));
assert_eq!(KernelConfig::standard().max_pool_size, Some(32));
assert_eq!(KernelConfig::minimal().max_steps, None);
assert_eq!(KernelConfig::standard().max_steps, None);
assert_eq!(KernelConfig::full().max_steps, None);
assert_eq!(KernelConfig::minimal().log_levels, [Level::Off; SUBSYSTEM_COUNT]);
assert!(!KernelConfig::minimal().warmup_builtin_ic);
assert!(KernelConfig::full().warmup_builtin_ic);
assert_eq!(KernelConfig::full().max_pool_size, None);
}
#[test]
fn test_session_rebuild_shares_forges() {
let core = KernelCore::new(KernelConfig::minimal());
let (i1, _) = core.perm_interner().intern("hello");
let _s2 = KernelSession::new(&core);
let (i2, _) = core.perm_interner().intern("hello");
assert_eq!(i1, i2);
}
#[test]
fn snapshot_fresh_session_is_clean() {
let core = KernelCore::new(KernelConfig::minimal());
let session = KernelSession::new(&core);
let dirty = session.dirty_since_snapshot();
assert!(!dirty.any());
assert!(!dirty.any_builtin_dirty());
assert!(!session.is_dirty_since_snapshot());
}
#[test]
fn snapshot_detects_array_dirty() {
let core = KernelCore::new(KernelConfig::minimal());
let session = KernelSession::new(&core);
unsafe { &mut *(session.builtin_world.array_proto.as_ptr() as *mut JsObject) }.bump_generation();
let dirty = session.dirty_since_snapshot();
assert!(dirty.array);
assert!(dirty.any_builtin_dirty());
assert!(session.is_dirty_since_snapshot());
assert!(!dirty.global);
assert!(!dirty.object);
}
#[test]
fn snapshot_detects_global_dirty() {
let core = KernelCore::new(KernelConfig::minimal());
let session = KernelSession::new(&core);
unsafe { &mut *(session.global_object.as_ptr() as *mut JsObject) }.bump_generation();
let dirty = session.dirty_since_snapshot();
assert!(dirty.global);
assert!(dirty.any());
assert!(!dirty.any_builtin_dirty());
}
#[test]
fn snapshot_detects_stub_dirty() {
let core = KernelCore::new(KernelConfig::minimal());
let mut session = KernelSession::new(&core);
Arc::get_mut(&mut session.builtin_world)
.expect("fresh session owns its builtin world")
.stub_objects
.push(P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null())));
session.record_snapshot();
Arc::get_mut(&mut session.builtin_world)
.expect("fresh session owns its builtin world")
.stub_objects
.push(P::new(JsObject::new_empty(EMPTY_SHAPE_ID, JsValue::null())));
let dirty = session.dirty_since_snapshot();
assert!(dirty.stubs);
assert!(dirty.any_builtin_dirty());
assert!(!dirty.global);
}
#[test]
fn selective_reset_clean_keeps_builtin_world() {
let core = KernelCore::new(KernelConfig::minimal());
let mut session = KernelSession::new(&core);
let world_ptr = Arc::as_ptr(&session.builtin_world);
let dirty = session.selective_reset(&core);
assert!(!dirty.any());
assert!(std::ptr::eq(world_ptr, Arc::as_ptr(&session.builtin_world)));
}
#[test]
fn selective_reset_rebuilds_global_only_when_global_dirty() {
let core = KernelCore::new(KernelConfig::minimal());
let mut session = KernelSession::new(&core);
let world_ptr = Arc::as_ptr(&session.builtin_world);
let global_ptr = session.global_object.as_ptr();
unsafe { &mut *(session.global_object.as_ptr() as *mut JsObject) }.bump_generation();
let dirty = session.selective_reset(&core);
assert!(dirty.global);
assert!(!dirty.any_builtin_dirty());
assert!(std::ptr::eq(world_ptr, Arc::as_ptr(&session.builtin_world)));
assert!(!std::ptr::eq(global_ptr, session.global_object.as_ptr()));
}
#[test]
fn selective_reset_rebuilds_dirty_builtin_group() {
let core = KernelCore::new(KernelConfig::minimal());
let mut session = KernelSession::new(&core);
let object_proto = session.builtin_world.object_proto.as_ptr();
let array_proto = session.builtin_world.array_proto.as_ptr();
let world_ptr = Arc::as_ptr(&session.builtin_world);
unsafe { &mut *(session.builtin_world.array_proto.as_ptr() as *mut JsObject) }.bump_generation();
let dirty = session.selective_reset(&core);
assert!(dirty.array);
assert!(!std::ptr::eq(world_ptr, Arc::as_ptr(&session.builtin_world)));
assert!(std::ptr::eq(object_proto, session.builtin_world.object_proto.as_ptr()));
assert!(!std::ptr::eq(array_proto, session.builtin_world.array_proto.as_ptr()));
let ctor_proto = session.builtin_world.array_constructor.get_prop_at(0).as_js_object_ptr();
assert!(std::ptr::eq(ctor_proto, session.builtin_world.array_proto.as_ptr() as *mut JsObject));
}
}
Reference in New Issue View Git Blame Copy Permalink