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Add unsafe blocks to make_unique

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See #6376
This commit is contained in:
Manish Goregaokar 2015-06-14 20:52:27 +05:30
parent 3cdc412a4c
commit 94fa868d2b
4 changed files with 84 additions and 68 deletions
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3
components/layout/animation.rs
View file

@ -68,6 +68,7 @@ pub fn process_new_animations(rw_data: &mut LayoutTaskData, pipeline_id: Pipelin
/// Recalculates style for an animation. This does *not* run with the DOM lock held.
pub fn recalc_style_for_animation(flow: &mut Flow, animation: &Animation) {
#![allow(unsafe_code)] // #6376
let mut damage = RestyleDamage::empty();
flow.mutate_fragments(&mut |fragment| {
if fragment.node.id() != animation.node {
@ -84,7 +85,7 @@ pub fn recalc_style_for_animation(flow: &mut Flow, animation: &Animation) {
}
let mut new_style = fragment.style.clone();
animation.property_animation.update(&mut *new_style.make_unique(), progress);
animation.property_animation.update(&mut *unsafe { new_style.make_unique() }, progress);
damage.insert(incremental::compute_damage(&Some(fragment.style.clone()), &new_style));
fragment.style = new_style
});

7
components/layout/inline.rs
View file

@ -950,6 +950,7 @@ impl InlineFlow {
fn justify_inline_fragments(fragments: &mut InlineFragments,
line: &Line,
slack_inline_size: Au) {
#![allow(unsafe_code)] // #6376
// Fast path.
if slack_inline_size == Au(0) {
return
@ -984,9 +985,9 @@ impl InlineFlow {
// FIXME(pcwalton): This is an awful lot of uniqueness making. I don't see any easy way
// to get rid of it without regressing the performance of the non-justified case,
// though.
let run = scanned_text_fragment_info.run.make_unique();
let run = unsafe { scanned_text_fragment_info.run.make_unique() };
{
let glyph_runs = run.glyphs.make_unique();
let glyph_runs = unsafe { run.glyphs.make_unique() };
for mut glyph_run in glyph_runs.iter_mut() {
let mut range = glyph_run.range.intersect(&fragment_range);
if range.is_empty() {
@ -994,7 +995,7 @@ impl InlineFlow {
}
range.shift_by(-glyph_run.range.begin());
let glyph_store = glyph_run.glyph_store.make_unique();
let glyph_store = unsafe { glyph_run.glyph_store.make_unique() };
glyph_store.distribute_extra_space_in_range(&range,
space_per_expansion_opportunity);
}

10
components/script/dom/element.rs
View file

@ -627,13 +627,14 @@ impl<'a> ElementHelpers<'a> for JSRef<'a, Element> {
}
fn remove_inline_style_property(self, property: DOMString) {
#![allow(unsafe_code)] // #6376
let mut inline_declarations = self.style_attribute.borrow_mut();
if let &mut Some(ref mut declarations) = &mut *inline_declarations {
let index = declarations.normal
.iter()
.position(|decl| decl.name() == property);
if let Some(index) = index {
declarations.normal.make_unique().remove(index);
unsafe { declarations.normal.make_unique().remove(index); }
return;
}
@ -641,19 +642,20 @@ impl<'a> ElementHelpers<'a> for JSRef<'a, Element> {
.iter()
.position(|decl| decl.name() == property);
if let Some(index) = index {
declarations.important.make_unique().remove(index);
unsafe { declarations.important.make_unique().remove(index); }
return;
}
}
}
fn update_inline_style(self, property_decl: PropertyDeclaration, style_priority: StylePriority) {
#![allow(unsafe_code)] // #6376
let mut inline_declarations = self.style_attribute().borrow_mut();
if let &mut Some(ref mut declarations) = &mut *inline_declarations {
let existing_declarations = if style_priority == StylePriority::Important {
declarations.important.make_unique()
unsafe { declarations.important.make_unique() }
} else {
declarations.normal.make_unique()
unsafe { declarations.normal.make_unique() }
};
for declaration in existing_declarations.iter_mut() {

132
components/style/properties.mako.rs
View file

@ -4,6 +4,10 @@
// This file is a Mako template: http://www.makotemplates.org/
// XXXManishearth remove all unsafe blocks when
// https://github.com/rust-lang/rust/issues/24880 is fixed
// See #6376
use std::ascii::AsciiExt;
use std::borrow::ToOwned;
use std::default::Default;
@ -5328,7 +5332,7 @@ impl ComputedValues {
#[inline]
pub fn mutate_${style_struct.name.lower()}
<'a>(&'a mut self) -> &'a mut style_structs::${style_struct.name} {
&mut *self.${style_struct.ident}.make_unique()
unsafe{ &mut *self.${style_struct.ident}.make_unique() }
}
% endfor
}
@ -5439,8 +5443,8 @@ fn cascade_with_cached_declarations(
.clone()
}
};
style_${style_struct.ident}.make_unique()
.${property.ident} = computed_value;
unsafe { style_${style_struct.ident}.make_unique()
.${property.ident} = computed_value; }
% endif
% if property.name in DERIVED_LONGHANDS:
@ -5450,13 +5454,13 @@ fn cascade_with_cached_declarations(
.${property.ident}.clone();
% endif
% for derived in DERIVED_LONGHANDS[property.name]:
style_${derived.style_struct.ident}
unsafe { style_${derived.style_struct.ident}
.make_unique()
.${derived.ident} =
longhands::${derived.ident}
::derive_from_${property.ident}(
computed_value,
context);
context); }
% endfor
% endif
}
@ -5473,7 +5477,7 @@ fn cascade_with_cached_declarations(
if seen.get_font_style() || seen.get_font_weight() || seen.get_font_stretch() ||
seen.get_font_family() {
compute_font_hash(&mut *style_font.make_unique())
unsafe { compute_font_hash(&mut *style_font.make_unique()) }
}
ComputedValues {
@ -5685,18 +5689,18 @@ pub fn cascade(viewport_size: Size2D<Au>,
.clone()
}
};
style_${style_struct.ident}.make_unique()
.${property.ident} = computed_value;
unsafe { style_${style_struct.ident}.make_unique()
.${property.ident} = computed_value; }
% if property.name in DERIVED_LONGHANDS:
% for derived in DERIVED_LONGHANDS[property.name]:
style_${derived.style_struct.ident}
unsafe { style_${derived.style_struct.ident}
.make_unique()
.${derived.ident} =
longhands::${derived.ident}
::derive_from_${property.ident}(
computed_value,
&context);
&context); }
% endfor
% endif
}
@ -5713,7 +5717,7 @@ pub fn cascade(viewport_size: Size2D<Au>,
// The initial value of border-*-width may be changed at computed value time.
{
let border = style_border.make_unique();
let border = unsafe { style_border.make_unique() };
% for side in ["top", "right", "bottom", "left"]:
// Like calling to_computed_value, which wouldn't type check.
if !context.border_${side}_present {
@ -5724,7 +5728,7 @@ pub fn cascade(viewport_size: Size2D<Au>,
// The initial value of display may be changed at computed value time.
if !seen.get_display() {
let box_ = style_box_.make_unique();
let box_ = unsafe { style_box_.make_unique() };
box_.display = box_.display.to_computed_value(&context);
}
@ -5734,7 +5738,7 @@ pub fn cascade(viewport_size: Size2D<Au>,
if seen.get_font_style() || seen.get_font_weight() || seen.get_font_stretch() ||
seen.get_font_family() {
compute_font_hash(&mut *style_font.make_unique())
unsafe { compute_font_hash(&mut *style_font.make_unique()) }
}
(ComputedValues {
@ -5769,7 +5773,7 @@ pub fn cascade_anonymous(parent_style: &ComputedValues) -> ComputedValues {
root_font_size: parent_style.root_font_size,
};
{
let border = result.border.make_unique();
let border = unsafe { result.border.make_unique() };
% for side in ["top", "right", "bottom", "left"]:
// Like calling to_computed_value, which wouldn't type check.
border.border_${side}_width = Au(0);
@ -5789,16 +5793,20 @@ pub fn cascade_anonymous(parent_style: &ComputedValues) -> ComputedValues {
pub fn modify_style_for_replaced_content(style: &mut Arc<ComputedValues>) {
// Reset `position` to handle cases like `<div style="position: absolute">foo bar baz</div>`.
if style.box_.display != longhands::display::computed_value::T::inline {
let mut style = style.make_unique();
style.box_.make_unique().display = longhands::display::computed_value::T::inline;
style.box_.make_unique().position = longhands::position::computed_value::T::static_;
unsafe {
let mut style = style.make_unique();
style.box_.make_unique().display = longhands::display::computed_value::T::inline;
style.box_.make_unique().position = longhands::position::computed_value::T::static_;
}
}
// Reset `vertical-align` to handle cases like `<sup>foo</sup>`.
if style.box_.vertical_align != longhands::vertical_align::computed_value::T::baseline {
let mut style = style.make_unique();
style.box_.make_unique().vertical_align =
longhands::vertical_align::computed_value::T::baseline
unsafe {
let mut style = style.make_unique();
style.box_.make_unique().vertical_align =
longhands::vertical_align::computed_value::T::baseline
}
}
// Reset margins.
@ -5806,12 +5814,14 @@ pub fn modify_style_for_replaced_content(style: &mut Arc<ComputedValues>) {
style.margin.margin_left != computed::LengthOrPercentageOrAuto::Length(Au(0)) ||
style.margin.margin_bottom != computed::LengthOrPercentageOrAuto::Length(Au(0)) ||
style.margin.margin_right != computed::LengthOrPercentageOrAuto::Length(Au(0)) {
let mut style = style.make_unique();
let margin = style.margin.make_unique();
margin.margin_top = computed::LengthOrPercentageOrAuto::Length(Au(0));
margin.margin_left = computed::LengthOrPercentageOrAuto::Length(Au(0));
margin.margin_bottom = computed::LengthOrPercentageOrAuto::Length(Au(0));
margin.margin_right = computed::LengthOrPercentageOrAuto::Length(Au(0));
unsafe {
let mut style = style.make_unique();
let margin = style.margin.make_unique();
margin.margin_top = computed::LengthOrPercentageOrAuto::Length(Au(0));
margin.margin_left = computed::LengthOrPercentageOrAuto::Length(Au(0));
margin.margin_bottom = computed::LengthOrPercentageOrAuto::Length(Au(0));
margin.margin_right = computed::LengthOrPercentageOrAuto::Length(Au(0));
}
}
}
@ -5825,40 +5835,42 @@ pub fn modify_style_for_inline_sides(style: &mut Arc<ComputedValues>,
is_first_fragment_of_element: bool,
is_last_fragment_of_element: bool) {
fn modify_side(style: &mut Arc<ComputedValues>, side: PhysicalSide) {
let mut style = style.make_unique();
let border = style.border.make_unique();
match side {
PhysicalSide::Left => {
border.border_left_width = Au(0);
border.border_left_style = BorderStyle::none;
style.padding.make_unique().padding_left =
computed::LengthOrPercentage::Length(Au(0));
style.margin.make_unique().margin_left =
computed::LengthOrPercentageOrAuto::Length(Au(0))
}
PhysicalSide::Right => {
border.border_right_width = Au(0);
border.border_right_style = BorderStyle::none;
style.padding.make_unique().padding_right =
computed::LengthOrPercentage::Length(Au(0));
style.margin.make_unique().margin_right =
computed::LengthOrPercentageOrAuto::Length(Au(0))
}
PhysicalSide::Bottom => {
border.border_bottom_width = Au(0);
border.border_bottom_style = BorderStyle::none;
style.padding.make_unique().padding_bottom =
computed::LengthOrPercentage::Length(Au(0));
style.margin.make_unique().margin_bottom =
computed::LengthOrPercentageOrAuto::Length(Au(0))
}
PhysicalSide::Top => {
border.border_top_width = Au(0);
border.border_top_style = BorderStyle::none;
style.padding.make_unique().padding_top =
computed::LengthOrPercentage::Length(Au(0));
style.margin.make_unique().margin_top =
computed::LengthOrPercentageOrAuto::Length(Au(0))
unsafe {
let mut style = style.make_unique();
let border = style.border.make_unique();
match side {
PhysicalSide::Left => {
border.border_left_width = Au(0);
border.border_left_style = BorderStyle::none;
style.padding.make_unique().padding_left =
computed::LengthOrPercentage::Length(Au(0));
style.margin.make_unique().margin_left =
computed::LengthOrPercentageOrAuto::Length(Au(0))
}
PhysicalSide::Right => {
border.border_right_width = Au(0);
border.border_right_style = BorderStyle::none;
style.padding.make_unique().padding_right =
computed::LengthOrPercentage::Length(Au(0));
style.margin.make_unique().margin_right =
computed::LengthOrPercentageOrAuto::Length(Au(0))
}
PhysicalSide::Bottom => {
border.border_bottom_width = Au(0);
border.border_bottom_style = BorderStyle::none;
style.padding.make_unique().padding_bottom =
computed::LengthOrPercentage::Length(Au(0));
style.margin.make_unique().margin_bottom =
computed::LengthOrPercentageOrAuto::Length(Au(0))
}
PhysicalSide::Top => {
border.border_top_width = Au(0);
border.border_top_style = BorderStyle::none;
style.padding.make_unique().padding_top =
computed::LengthOrPercentage::Length(Au(0));
style.margin.make_unique().margin_top =
computed::LengthOrPercentageOrAuto::Length(Au(0))
}
}
}
}