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refactor: Vm 状态分组、dispatch 拆分为分发表、IC 辅助函数独立成模块

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爱特每羊队
2026-06-25 19:22:16 +08:00
parent 2c8f85d5a9
commit bb3f1cf0e9
16 changed files with 835 additions and 563 deletions
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crates/oxide_vm/src/dispatch/property.rs
+40 -9
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@@ -198,14 +198,14 @@ impl Vm {
if let Some(value) = ic_get_hit(obj, cached_shape_id, cached_slot) {
self.regs[a] = value;
self.ic_hits.set(self.ic_hits.get() + 1);
self.profiling.ic_hits.set(self.profiling.ic_hits.get() + 1);
ic_trace!("IC_GET hit shape={} slot={}", cached_shape_id, cached_slot);
} else if let Some(template) = self.kernel_core.prop_forge().get_template(obj.shape_id()) {
self.ic_misses.set(self.ic_misses.get() + 1);
self.profiling.ic_misses.set(self.profiling.ic_misses.get() + 1);
prop_cache_miss();
if template.prop_name == prop_name_si {
if template.position < obj.prop_vec_len() as u32 {
self.write_ic_back(obj.shape_id(), template.position);
crate::ic_helper::write_ic_back(&mut self.bytecode, self.pc, obj.shape_id(), template.position);
ic_debug!(
"IC_GET propforge hit shape={} prop={} slot={}",
obj.shape_id(),
@@ -226,7 +226,7 @@ impl Vm {
ic_debug!("IC_GET miss shape={} prop={}", obj.shape_id(), prop_name_si);
let resolved = self.ordinary_get(obj, prop_name_si, val)?;
if let Some(pos) = self.kernel_core.shape_forge().lookup_position(obj.shape_id(), prop_name_si) {
self.write_ic_back(obj.shape_id(), pos);
crate::ic_helper::write_ic_back(&mut self.bytecode, self.pc, obj.shape_id(), pos);
}
self.regs[a] = resolved;
}
@@ -268,22 +268,22 @@ impl Vm {
let cached_slot = ext1;
if ic_set_hit(obj, cached_shape_id, cached_slot, value) {
self.ic_hits.set(self.ic_hits.get() + 1);
self.profiling.ic_hits.set(self.profiling.ic_hits.get() + 1);
ic_trace!("IC_SET hit shape={} slot={}", cached_shape_id, cached_slot);
} else if let Some(pos) = self.kernel_core.shape_forge().lookup_position(obj.shape_id(), prop_name_si) {
self.ic_misses.set(self.ic_misses.get() + 1);
self.profiling.ic_misses.set(self.profiling.ic_misses.get() + 1);
prop_cache_miss();
obj.set_prop_at(pos, value);
self.write_ic_back(obj.shape_id(), pos);
crate::ic_helper::write_ic_back(&mut self.bytecode, self.pc, obj.shape_id(), pos);
ic_debug!("IC_SET write-back shape={} slot={}", obj.shape_id(), pos);
} else {
self.ic_misses.set(self.ic_misses.get() + 1);
self.profiling.ic_misses.set(self.profiling.ic_misses.get() + 1);
prop_cache_miss();
let old_shape = obj.shape_id();
self.ordinary_set_dispatch(obj, prop_name_si, value, receiver)?;
if old_shape != obj.shape_id() {
if let Some(pos) = self.kernel_core.shape_forge().lookup_position(obj.shape_id(), prop_name_si) {
self.write_ic_back(obj.shape_id(), pos);
crate::ic_helper::write_ic_back(&mut self.bytecode, self.pc, obj.shape_id(), pos);
ic_debug!("IC_SET write-back shape={} slot={}", obj.shape_id(), pos);
self.kernel_core.prop_forge().upsert(
obj.shape_id(),
@@ -394,3 +394,34 @@ impl Vm {
Ok(())
}
}
impl Vm {
pub(crate) fn dispatch_delete_prop_static(&mut self, rd: usize) -> Result<bool, String> {
let prop_idx = self.bytecode[self.pc] as usize;
self.pc += 1;
let key_val = self.immutables().get(prop_idx).copied().unwrap_or_else(JsValue::undefined);
let prop_name_si = self.property_key_si(key_val);
let Some(obj_ptr) = self.checked_object_ptr(self.regs[rd], "delete on non-object")? else {
return Ok(true);
};
let obj = unsafe { &mut *obj_ptr };
if let Some(pos) = self.kernel_core.shape_forge().lookup_position(obj.shape_id(), prop_name_si) {
obj.set_prop_at(pos, JsValue::undefined());
}
self.regs[rd] = JsValue::bool(true);
Ok(false)
}
pub(crate) fn dispatch_delete_prop_dynamic(&mut self, rd: usize, b: usize) -> Result<bool, String> {
let prop_name_si = self.property_key_si(self.regs[b]);
let Some(obj_ptr) = self.checked_object_ptr(self.regs[rd], "delete on non-object")? else {
return Ok(true);
};
let obj = unsafe { &mut *obj_ptr };
if let Some(pos) = self.kernel_core.shape_forge().lookup_position(obj.shape_id(), prop_name_si) {
obj.set_prop_at(pos, JsValue::undefined());
}
self.regs[rd] = JsValue::bool(true);
Ok(false)
}
}