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util: Remove the old broken SerializableLinkedList code in favor of

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serde's native implementation.
This commit is contained in:
Patrick Walton 2015-07-27 12:49:30 -07:00
parent ef9fdc6e30
commit f041e1aa60
2 changed files with 32 additions and 105 deletions
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64
components/gfx/display_list/mod.rs
View file

@ -42,7 +42,7 @@ use style::computed_values::{pointer_events};
use style::properties::ComputedValues;
use util::cursor::Cursor;
use util::geometry::{self, Au, MAX_RECT, ZERO_RECT};
use util::linked_list::{SerializableLinkedList, prepend_from};
use util::linked_list::prepend_from;
use util::mem::HeapSizeOf;
use util::opts;
use util::range::Range;
@ -84,19 +84,19 @@ impl OpaqueNode {
#[derive(HeapSizeOf, Deserialize, Serialize)]
pub struct DisplayList {
/// The border and backgrounds for the root of this stacking context: steps 1 and 2.
pub background_and_borders: SerializableLinkedList<DisplayItem>,
pub background_and_borders: LinkedList<DisplayItem>,
/// Borders and backgrounds for block-level descendants: step 4.
pub block_backgrounds_and_borders: SerializableLinkedList<DisplayItem>,
pub block_backgrounds_and_borders: LinkedList<DisplayItem>,
/// Floats: step 5. These are treated as pseudo-stacking contexts.
pub floats: SerializableLinkedList<DisplayItem>,
pub floats: LinkedList<DisplayItem>,
/// All non-positioned content.
pub content: SerializableLinkedList<DisplayItem>,
pub content: LinkedList<DisplayItem>,
/// All positioned content that does not get a stacking context.
pub positioned_content: SerializableLinkedList<DisplayItem>,
pub positioned_content: LinkedList<DisplayItem>,
/// Outlines: step 10.
pub outlines: SerializableLinkedList<DisplayItem>,
pub outlines: LinkedList<DisplayItem>,
/// Child stacking contexts.
pub children: SerializableLinkedList<Arc<StackingContext>>,
pub children: LinkedList<Arc<StackingContext>>,
}
impl DisplayList {
@ -104,13 +104,13 @@ impl DisplayList {
#[inline]
pub fn new() -> DisplayList {
DisplayList {
background_and_borders: SerializableLinkedList::new(LinkedList::new()),
block_backgrounds_and_borders: SerializableLinkedList::new(LinkedList::new()),
floats: SerializableLinkedList::new(LinkedList::new()),
content: SerializableLinkedList::new(LinkedList::new()),
positioned_content: SerializableLinkedList::new(LinkedList::new()),
outlines: SerializableLinkedList::new(LinkedList::new()),
children: SerializableLinkedList::new(LinkedList::new()),
background_and_borders: LinkedList::new(),
block_backgrounds_and_borders: LinkedList::new(),
floats: LinkedList::new(),
content: LinkedList::new(),
positioned_content: LinkedList::new(),
outlines: LinkedList::new(),
children: LinkedList::new(),
}
}
@ -118,34 +118,34 @@ impl DisplayList {
/// `other` in the process.
#[inline]
pub fn append_from(&mut self, other: &mut DisplayList) {
self.background_and_borders.append(&mut *other.background_and_borders);
self.block_backgrounds_and_borders.append(&mut *other.block_backgrounds_and_borders);
self.floats.append(&mut *other.floats);
self.content.append(&mut *other.content);
self.positioned_content.append(&mut *other.positioned_content);
self.outlines.append(&mut *other.outlines);
self.children.append(&mut *other.children);
self.background_and_borders.append(&mut other.background_and_borders);
self.block_backgrounds_and_borders.append(&mut other.block_backgrounds_and_borders);
self.floats.append(&mut other.floats);
self.content.append(&mut other.content);
self.positioned_content.append(&mut other.positioned_content);
self.outlines.append(&mut other.outlines);
self.children.append(&mut other.children);
}
/// Merges all display items from all non-float stacking levels to the `float` stacking level.
#[inline]
pub fn form_float_pseudo_stacking_context(&mut self) {
prepend_from(&mut *self.floats, &mut *self.outlines);
prepend_from(&mut *self.floats, &mut *self.positioned_content);
prepend_from(&mut *self.floats, &mut *self.content);
prepend_from(&mut *self.floats, &mut *self.block_backgrounds_and_borders);
prepend_from(&mut *self.floats, &mut *self.background_and_borders);
prepend_from(&mut self.floats, &mut self.outlines);
prepend_from(&mut self.floats, &mut self.positioned_content);
prepend_from(&mut self.floats, &mut self.content);
prepend_from(&mut self.floats, &mut self.block_backgrounds_and_borders);
prepend_from(&mut self.floats, &mut self.background_and_borders);
}
/// Merges all display items from all non-positioned-content stacking levels to the
/// positioned-content stacking level.
#[inline]
pub fn form_pseudo_stacking_context_for_positioned_content(&mut self) {
prepend_from(&mut *self.positioned_content, &mut *self.outlines);
prepend_from(&mut *self.positioned_content, &mut *self.content);
prepend_from(&mut *self.positioned_content, &mut *self.floats);
prepend_from(&mut *self.positioned_content, &mut *self.block_backgrounds_and_borders);
prepend_from(&mut *self.positioned_content, &mut *self.background_and_borders);
prepend_from(&mut self.positioned_content, &mut self.outlines);
prepend_from(&mut self.positioned_content, &mut self.content);
prepend_from(&mut self.positioned_content, &mut self.floats);
prepend_from(&mut self.positioned_content, &mut self.block_backgrounds_and_borders);
prepend_from(&mut self.positioned_content, &mut self.background_and_borders);
}
/// Returns a list of all items in this display list concatenated together. This is extremely

73
components/util/linked_list.rs
View file

@ -4,81 +4,8 @@
//! Utility functions for doubly-linked lists.
use mem::HeapSizeOf;
use serde::de::{Error, SeqVisitor, Visitor};
use serde::ser::impls::SeqIteratorVisitor;
use serde::{Deserialize, Deserializer, Serialize, Serializer};
use std::collections::LinkedList;
use std::marker::PhantomData;
use std::mem;
use std::ops::{Deref, DerefMut};
pub struct SerializableLinkedList<T>(LinkedList<T>);
impl<T> SerializableLinkedList<T> {
pub fn new(linked_list: LinkedList<T>) -> SerializableLinkedList<T> {
SerializableLinkedList(linked_list)
}
}
impl<T> Deref for SerializableLinkedList<T> {
type Target = LinkedList<T>;
fn deref(&self) -> &LinkedList<T> {
&self.0
}
}
impl<T> DerefMut for SerializableLinkedList<T> {
fn deref_mut(&mut self) -> &mut LinkedList<T> {
&mut self.0
}
}
impl<T: HeapSizeOf> HeapSizeOf for SerializableLinkedList<T> {
fn heap_size_of_children(&self) -> usize {
self.0.heap_size_of_children()
}
}
impl<T> Serialize for SerializableLinkedList<T> where T: Serialize {
fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error> where S: Serializer {
serializer.visit_seq(SeqIteratorVisitor::new(self.0.iter(), Some(self.0.len())))
}
}
impl<T> Deserialize for SerializableLinkedList<T> where T: Deserialize {
fn deserialize<D>(deserializer: &mut D) -> Result<SerializableLinkedList<T>, D::Error>
where D: Deserializer {
struct SerializableLinkedListVisitor<T> {
marker: PhantomData<T>,
}
impl<T> Visitor for SerializableLinkedListVisitor<T> where T: Deserialize {
type Value = SerializableLinkedList<T>;
#[inline]
fn visit_seq<V>(&mut self, mut visitor: V)
-> Result<SerializableLinkedList<T>, V::Error>
where V: SeqVisitor {
let mut list = LinkedList::new();
for _ in 0..visitor.size_hint().0 {
match try!(visitor.visit()) {
Some(element) => list.push_back(element),
None => return Err(Error::end_of_stream_error()),
}
}
try!(visitor.end());
Ok(SerializableLinkedList(list))
}
}
deserializer.visit_seq(SerializableLinkedListVisitor {
marker: PhantomData,
})
}
}
/// Splits the head off a list in O(1) time, and returns the head.
pub fn split_off_head<T>(list: &mut LinkedList<T>) -> LinkedList<T> {