Use TaffyStyleConstRef and TaffyStyleMutRef types

Author: nicoburns

ctaffy/src/lib.rs

@@ -3,6 +3,19 @@ mod style;
 mod style_enums;
 mod value;
 
+pub struct Taffy;
+pub type TaffyMutRef = *mut Taffy;
+pub type TaffyConstRef = *const Taffy;
+
+pub struct TaffyNodeId;
+
+pub struct TaffyStyle;
+pub type TaffyStyleMutRef = *mut TaffyStyle;
+pub type TaffyStyleConstRef = *const TaffyStyle;
+
+pub struct TaffyLayout;
+pub type TaffyLayoutConstRef = *const TaffyLayout;
+
 pub use error::*;
 pub use style::*;
 pub use style_enums::*;

ctaffy/src/style.rs

@@ -8,9 +8,6 @@ use super::{
 use std::ffi::c_void;
 use taffy::prelude as core;
 
-pub struct TaffyStyle;
-pub type TaffyStyleRef = *mut TaffyStyle;
-
 /// Return [`ReturnCode::NullStylePointer`] if the passed pointer is null
 macro_rules! assert_style_pointer_is_non_null {
     ($raw_style_ptr:expr) => {{
@@ -72,7 +69,7 @@ macro_rules! try_from_raw {
 macro_rules! enum_prop_getter {
     ($func_name:ident; $($props:ident).+) => {
         #[no_mangle]
-        pub unsafe extern "C" fn $func_name(raw_style: *const TaffyStyle) -> IntResult {
+        pub unsafe extern "C" fn $func_name(raw_style: TaffyStyleConstRef) -> IntResult {
             get_style!(raw_style, style, style.$($props).* as i32)
         }
     };
@@ -81,7 +78,7 @@ macro_rules! enum_prop_getter {
 macro_rules! option_enum_prop_getter {
     ($func_name:ident; $($props:ident).+) => {
         #[no_mangle]
-        pub unsafe extern "C" fn $func_name(raw_style: *const TaffyStyle) -> IntResult {
+        pub unsafe extern "C" fn $func_name(raw_style: TaffyStyleConstRef) -> IntResult {
             get_style!(raw_style, style, style.$($props).*.map(|v| v as i32).unwrap_or(0))
         }
     };
@@ -91,7 +88,7 @@ macro_rules! option_enum_prop_getter {
 macro_rules! enum_prop_setter {
     ($func_name:ident; $($props:ident).+; $enum:ident) => {
         #[no_mangle]
-        pub unsafe extern "C" fn $func_name(raw_style: *mut TaffyStyle, value: $enum) -> ReturnCode {
+        pub unsafe extern "C" fn $func_name(raw_style: TaffyStyleMutRef, value: $enum) -> ReturnCode {
             with_style_mut!(raw_style, style, style.$($props).* = value.into())
         }
     };
@@ -141,7 +138,7 @@ enum_prop_setter!(TaffyStyle_SetGridAutoFlow; grid_auto_flow; TaffyGridAutoFlow)
 macro_rules! style_value_prop_getter {
     ($func_name:ident; $($props:ident).+) => {
         #[no_mangle]
-        pub unsafe extern "C" fn $func_name(raw_style: *const TaffyStyle) -> StyleValueResult {
+        pub unsafe extern "C" fn $func_name(raw_style: TaffyStyleConstRef) -> StyleValueResult {
             get_style!(raw_style, style, style.$($props).*)
         }
     };
@@ -151,7 +148,7 @@ macro_rules! style_value_prop_getter {
 macro_rules! style_value_prop_setter {
     ($func_name:ident; $($props:ident).+) => {
         #[no_mangle]
-        pub unsafe extern "C" fn $func_name(raw_style: *mut TaffyStyle, value: f32, unit: StyleValueUnit) -> ReturnCode {
+        pub unsafe extern "C" fn $func_name(raw_style: TaffyStyleMutRef, value: f32, unit: StyleValueUnit) -> ReturnCode {
             with_style_mut!(raw_style, style, style.$($props).* = try_from_raw!(unit, value))
         }
     };
@@ -223,11 +220,11 @@ style_value_prop_setter!(TaffyStyle_SetRowGap; gap.height);
 
 // Aspect ratio
 #[no_mangle]
-pub unsafe extern "C" fn TaffyStyle_GetAspectRatio(raw_style: *const TaffyStyle) -> FloatResult {
+pub unsafe extern "C" fn TaffyStyle_GetAspectRatio(raw_style: TaffyStyleConstRef) -> FloatResult {
     get_style!(raw_style, style, style.aspect_ratio.unwrap_or(f32::NAN))
 }
 #[no_mangle]
-pub unsafe extern "C" fn TaffyStyle_SetAspectRatio(raw_style: *mut TaffyStyle, value: f32) -> ReturnCode {
+pub unsafe extern "C" fn TaffyStyle_SetAspectRatio(raw_style: TaffyStyleMutRef, value: f32) -> ReturnCode {
     with_style_mut!(raw_style, style, {
         if value.is_finite() && value > 0.0 {
             style.aspect_ratio = Some(value)
@@ -241,7 +238,7 @@ pub unsafe extern "C" fn TaffyStyle_SetAspectRatio(raw_style: *mut TaffyStyle, v
 macro_rules! float_prop_getter {
     ($func_name:ident; $($props:ident).+) => {
         #[no_mangle]
-        pub unsafe extern "C" fn $func_name(raw_style: *const TaffyStyle) -> FloatResult {
+        pub unsafe extern "C" fn $func_name(raw_style: TaffyStyleConstRef) -> FloatResult {
             get_style!(raw_style, style, style.$($props).*)
         }
     };
@@ -251,7 +248,7 @@ macro_rules! float_prop_getter {
 macro_rules! float_prop_setter {
     ($func_name:ident; $($props:ident).+) => {
         #[no_mangle]
-        pub unsafe extern "C" fn $func_name(raw_style: *mut TaffyStyle, value: f32) -> ReturnCode {
+        pub unsafe extern "C" fn $func_name(raw_style: TaffyStyleMutRef, value: f32) -> ReturnCode {
             with_style_mut!(raw_style, style, style.$($props).* = value)
         }
     };
@@ -272,7 +269,7 @@ float_prop_setter!(TaffyStyle_SetFlexShrink; flex_shrink);
 /// Function to set all the value of margin
 #[no_mangle]
 pub unsafe extern "C" fn TaffyStyle_SetMargin(
-    raw_style: *mut TaffyStyle,
+    raw_style: TaffyStyleMutRef,
     edge: TaffyEdge,
     value: StyleValue,
 ) -> ReturnCode {
@@ -305,12 +302,12 @@ pub unsafe extern "C" fn TaffyStyle_SetMargin(
 
 /// Get grid item's column placement
 #[no_mangle]
-pub unsafe extern "C" fn TaffyStyleGetGridColumn(raw_style: *mut TaffyStyle) -> GridPlacementResult {
+pub unsafe extern "C" fn TaffyStyleGetGridColumn(raw_style: TaffyStyleMutRef) -> GridPlacementResult {
     get_style!(raw_style, style, style.grid_column)
 }
 
 /// Set grid item's column placement
 #[no_mangle]
-pub unsafe extern "C" fn TaffyStyleSetGridColumn(raw_style: *mut TaffyStyle, placement: GridPlacement) -> ReturnCode {
+pub unsafe extern "C" fn TaffyStyleSetGridColumn(raw_style: TaffyStyleMutRef, placement: GridPlacement) -> ReturnCode {
     with_style_mut!(raw_style, style, style.grid_column = placement.into())
 }