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fix ErrorScope model

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This commit is contained in:
Kunal Mohan 2020-08-06 20:21:38 +05:30
parent 072770dbc0
commit 78c9466fdb
1 changed files with 33 additions and 15 deletions
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48
components/script/dom/gpudevice.rs
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@ -64,7 +64,7 @@ use crate::script_runtime::JSContext as SafeJSContext;
use dom_struct::dom_struct;
use js::jsapi::{Heap, JSObject};
use std::borrow::Cow;
use std::cell::RefCell;
use std::cell::{Cell, RefCell};
use std::collections::HashMap;
use std::ptr::NonNull;
use std::rc::Rc;
@ -82,10 +82,17 @@ struct ErrorScopeInfo {
promise: Option<Rc<Promise>>,
}
#[derive(JSTraceable, MallocSizeOf)]
struct ErrorScopeMetadata {
id: ErrorScopeId,
filter: GPUErrorFilter,
popped: Cell<bool>,
}
#[derive(JSTraceable, MallocSizeOf)]
struct ScopeContext {
error_scopes: HashMap<ErrorScopeId, ErrorScopeInfo>,
scope_stack: Vec<(ErrorScopeId, GPUErrorFilter)>,
scope_stack: Vec<ErrorScopeMetadata>,
next_scope_id: ErrorScopeId,
}
@ -189,8 +196,8 @@ impl GPUDevice {
.scope_stack
.iter()
.rev()
.find(|&&(id, fil)| id <= s_id && fil == filter)
.map(|(id, _)| *id);
.find(|meta| meta.id <= s_id && meta.filter == filter)
.map(|meta| meta.id);
if let Some(s) = scop {
self.handle_error(s, err);
} else {
@ -237,14 +244,19 @@ impl GPUDevice {
};
if remove {
let _ = context.error_scopes.remove(&scope);
context.scope_stack.retain(|(id, _)| *id != scope);
context.scope_stack.retain(|meta| meta.id != scope);
}
}
pub fn use_current_scope(&self) -> Option<ErrorScopeId> {
let mut context = self.scope_context.borrow_mut();
let scope_id = context.scope_stack.last().copied();
scope_id.and_then(|(s_id, _)| {
let scope_id = context
.scope_stack
.iter()
.rev()
.find(|meta| !meta.popped.get())
.map(|meta| meta.id);
scope_id.and_then(|s_id| {
context.error_scopes.get_mut(&s_id).map(|mut scope| {
scope.op_count += 1;
s_id
@ -1017,7 +1029,11 @@ impl GPUDeviceMethods for GPUDevice {
promise: None,
};
let res = context.error_scopes.insert(scope_id, err_scope);
context.scope_stack.push((scope_id, filter));
context.scope_stack.push(ErrorScopeMetadata {
id: scope_id,
filter,
popped: Cell::new(false),
});
assert!(res.is_none());
}
@ -1025,12 +1041,14 @@ impl GPUDeviceMethods for GPUDevice {
fn PopErrorScope(&self, comp: InRealm) -> Rc<Promise> {
let mut context = self.scope_context.borrow_mut();
let promise = Promise::new_in_current_realm(&self.global(), comp);
let scope_id = if let Some((e, _)) = context.scope_stack.last() {
*e
} else {
promise.reject_error(Error::Operation);
return promise;
};
let scope_id =
if let Some(meta) = context.scope_stack.iter().rev().find(|m| !m.popped.get()) {
meta.popped.set(true);
meta.id
} else {
promise.reject_error(Error::Operation);
return promise;
};
let remove = if let Some(mut err_scope) = context.error_scopes.get_mut(&scope_id) {
if let Some(ref e) = err_scope.error {
match e {
@ -1048,7 +1066,7 @@ impl GPUDeviceMethods for GPUDevice {
};
if remove {
let _ = context.error_scopes.remove(&scope_id);
let _ = context.scope_stack.pop();
context.scope_stack.retain(|meta| meta.id != scope_id);
}
promise
}