servo/components/style/gecko/arc_types.rs

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
   4
   5 //! This file lists all arc FFI types and defines corresponding addref and release functions. This
   6 //! list loosely corresponds to ServoLockedArcTypeList.h file in Gecko.
   7
   8 #![allow(non_snake_case, missing_docs)]
   9
  10 use crate::gecko::url::CssUrlData;
  11 use crate::media_queries::MediaList;
  12 use crate::properties::animated_properties::AnimationValue;
  13 use crate::properties::{ComputedValues, PropertyDeclarationBlock};
  14 use crate::shared_lock::Locked;
  15 use crate::stylesheets::keyframes_rule::Keyframe;
  16 use crate::stylesheets::{
  17     ContainerRule, CounterStyleRule, CssRules, DocumentRule, FontFaceRule, FontFeatureValuesRule,
  18     FontPaletteValuesRule, ImportRule, KeyframesRule, LayerBlockRule, LayerStatementRule,
  19     MarginRule, MediaRule, NamespaceRule, PageRule, PropertyRule, ScopeRule, StartingStyleRule,
  20     StyleRule, StylesheetContents, SupportsRule,
  21 };
  22 use servo_arc::Arc;
  23
  24 macro_rules! impl_simple_arc_ffi {
  25     ($ty:ty, $addref:ident, $release:ident) => {
  26         #[no_mangle]
  27         pub unsafe extern "C" fn $addref(obj: *const $ty) {
  28             std::mem::forget(Arc::from_raw_addrefed(obj));
  29         }
  30
  31         #[no_mangle]
  32         pub unsafe extern "C" fn $release(obj: *const $ty) {
  33             let _ = Arc::from_raw(obj);
  34         }
  35     };
  36 }
  37
  38 macro_rules! impl_locked_arc_ffi {
  39     ($servo_type:ty, $alias:ident, $addref:ident, $release:ident) => {
  40         /// A simple alias for a locked type.
  41         pub type $alias = Locked<$servo_type>;
  42         impl_simple_arc_ffi!($alias, $addref, $release);
  43     };
  44 }
  45
  46 impl_locked_arc_ffi!(
  47     CssRules,
  48     LockedCssRules,
  49     Servo_CssRules_AddRef,
  50     Servo_CssRules_Release
  51 );
  52 impl_locked_arc_ffi!(
  53     PropertyDeclarationBlock,
  54     LockedDeclarationBlock,
  55     Servo_DeclarationBlock_AddRef,
  56     Servo_DeclarationBlock_Release
  57 );
  58 impl_locked_arc_ffi!(
  59     StyleRule,
  60     LockedStyleRule,
  61     Servo_StyleRule_AddRef,
  62     Servo_StyleRule_Release
  63 );
  64 impl_locked_arc_ffi!(
  65     ImportRule,
  66     LockedImportRule,
  67     Servo_ImportRule_AddRef,
  68     Servo_ImportRule_Release
  69 );
  70 impl_locked_arc_ffi!(
  71     Keyframe,
  72     LockedKeyframe,
  73     Servo_Keyframe_AddRef,
  74     Servo_Keyframe_Release
  75 );
  76 impl_locked_arc_ffi!(
  77     KeyframesRule,
  78     LockedKeyframesRule,
  79     Servo_KeyframesRule_AddRef,
  80     Servo_KeyframesRule_Release
  81 );
  82 impl_simple_arc_ffi!(
  83     LayerBlockRule,
  84     Servo_LayerBlockRule_AddRef,
  85     Servo_LayerBlockRule_Release
  86 );
  87 impl_simple_arc_ffi!(
  88     LayerStatementRule,
  89     Servo_LayerStatementRule_AddRef,
  90     Servo_LayerStatementRule_Release
  91 );
  92 impl_locked_arc_ffi!(
  93     MediaList,
  94     LockedMediaList,
  95     Servo_MediaList_AddRef,
  96     Servo_MediaList_Release
  97 );
  98 impl_simple_arc_ffi!(MediaRule, Servo_MediaRule_AddRef, Servo_MediaRule_Release);
  99 impl_simple_arc_ffi!(
 100     NamespaceRule,
 101     Servo_NamespaceRule_AddRef,
 102     Servo_NamespaceRule_Release
 103 );
 104 impl_simple_arc_ffi!(
 105     MarginRule,
 106     Servo_MarginRule_AddRef,
 107     Servo_MarginRule_Release
 108 );
 109 impl_locked_arc_ffi!(
 110     PageRule,
 111     LockedPageRule,
 112     Servo_PageRule_AddRef,
 113     Servo_PageRule_Release
 114 );
 115 impl_simple_arc_ffi!(
 116     PropertyRule,
 117     Servo_PropertyRule_AddRef,
 118     Servo_PropertyRule_Release
 119 );
 120 impl_simple_arc_ffi!(
 121     SupportsRule,
 122     Servo_SupportsRule_AddRef,
 123     Servo_SupportsRule_Release
 124 );
 125 impl_simple_arc_ffi!(
 126     ContainerRule,
 127     Servo_ContainerRule_AddRef,
 128     Servo_ContainerRule_Release
 129 );
 130 impl_simple_arc_ffi!(
 131     DocumentRule,
 132     Servo_DocumentRule_AddRef,
 133     Servo_DocumentRule_Release
 134 );
 135 impl_simple_arc_ffi!(
 136     FontFeatureValuesRule,
 137     Servo_FontFeatureValuesRule_AddRef,
 138     Servo_FontFeatureValuesRule_Release
 139 );
 140 impl_simple_arc_ffi!(
 141     FontPaletteValuesRule,
 142     Servo_FontPaletteValuesRule_AddRef,
 143     Servo_FontPaletteValuesRule_Release
 144 );
 145 impl_locked_arc_ffi!(
 146     FontFaceRule,
 147     LockedFontFaceRule,
 148     Servo_FontFaceRule_AddRef,
 149     Servo_FontFaceRule_Release
 150 );
 151 impl_locked_arc_ffi!(
 152     CounterStyleRule,
 153     LockedCounterStyleRule,
 154     Servo_CounterStyleRule_AddRef,
 155     Servo_CounterStyleRule_Release
 156 );
 157
 158 impl_simple_arc_ffi!(
 159     StylesheetContents,
 160     Servo_StyleSheetContents_AddRef,
 161     Servo_StyleSheetContents_Release
 162 );
 163 impl_simple_arc_ffi!(
 164     CssUrlData,
 165     Servo_CssUrlData_AddRef,
 166     Servo_CssUrlData_Release
 167 );
 168 impl_simple_arc_ffi!(
 169     ComputedValues,
 170     Servo_ComputedStyle_AddRef,
 171     Servo_ComputedStyle_Release
 172 );
 173 impl_simple_arc_ffi!(
 174     AnimationValue,
 175     Servo_AnimationValue_AddRef,
 176     Servo_AnimationValue_Release
 177 );
 178 impl_simple_arc_ffi!(
 179     ScopeRule,
 180     Servo_ScopeRule_AddRef,
 181     Servo_ScopeRule_Release
 182 );
 183 impl_simple_arc_ffi!(
 184     StartingStyleRule,
 185     Servo_StartingStyleRule_AddRef,
 186     Servo_StartingStyleRule_Release
 187 );