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Fixes their order to be the same as in the source file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -8,6 +8,7 @@ mod availability; | |
| mod config; | ||
| mod method; | ||
| mod objc2_utils; | ||
| mod property; | ||
| mod rust_type; | ||
| mod stmt; | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| use clang::{Entity, EntityKind, EntityVisitResult, Nullability, ObjCAttributes}; | ||
| use proc_macro2::TokenStream; | ||
| use quote::ToTokens; | ||
|
|
||
| use crate::availability::Availability; | ||
| use crate::config::MethodData; | ||
| use crate::method::{MemoryManagement, Method, Qualifier}; | ||
| use crate::rust_type::{RustType, RustTypeReturn}; | ||
|
|
||
| #[allow(dead_code)] | ||
| #[derive(Debug, Clone)] | ||
| pub struct Property { | ||
| name: String, | ||
| getter_name: String, | ||
| setter_name: Option<String>, | ||
| availability: Availability, | ||
| is_class: bool, | ||
| is_optional_protocol: bool, | ||
| type_in: RustType, | ||
| type_out: RustType, | ||
| safe: bool, | ||
| } | ||
|
|
||
| impl Property { | ||
| /// Takes `EntityKind::ObjCPropertyDecl`. | ||
| pub fn partial(entity: Entity<'_>) -> PartialProperty<'_> { | ||
| let attributes = entity.get_objc_attributes(); | ||
| let has_setter = attributes.map(|a| !a.readonly).unwrap_or(true); | ||
|
|
||
| PartialProperty { | ||
| entity, | ||
| name: entity.get_display_name().expect("property getter name"), | ||
| getter_name: entity.get_objc_getter_name().expect("property getter name"), | ||
| setter_name: has_setter.then(|| { | ||
| entity | ||
| .get_objc_setter_name() | ||
| .expect("property setter name") | ||
| .trim_end_matches(|c| c == ':') | ||
| .to_string() | ||
| }), | ||
| is_class: attributes.map(|a| a.class).unwrap_or(false), | ||
| attributes: entity.get_objc_attributes(), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| #[derive(Debug, Clone)] | ||
| pub struct PartialProperty<'tu> { | ||
| entity: Entity<'tu>, | ||
| pub name: String, | ||
| pub getter_name: String, | ||
| pub setter_name: Option<String>, | ||
| pub is_class: bool, | ||
| attributes: Option<ObjCAttributes>, | ||
| } | ||
|
|
||
| impl PartialProperty<'_> { | ||
| pub fn parse(self, data: MethodData) -> Option<Property> { | ||
| let Self { | ||
| entity, | ||
| name, | ||
| getter_name, | ||
| setter_name, | ||
| is_class, | ||
| attributes, | ||
| } = self; | ||
|
|
||
| if data.skipped { | ||
| return None; | ||
| } | ||
|
|
||
| // println!("Property {getter_name:?}/{setter_name:?}: {attributes:?}"); | ||
|
|
||
| let availability = Availability::parse( | ||
| entity | ||
| .get_platform_availability() | ||
| .expect("method availability"), | ||
| ); | ||
|
|
||
| // `@property(copy)` for some reason returns nonnull? | ||
| // | ||
| // Swift signifies that they use forced unwrapping here, perhaps | ||
| // because they know that it can fail (e.g. in OOM situations), but | ||
| // is very unlikely to? | ||
| let default_nullability = if attributes.map(|a| a.copy).unwrap_or(false) { | ||
| Nullability::NonNull | ||
| } else { | ||
| Nullability::Unspecified | ||
| }; | ||
|
|
||
| let type_in = RustType::parse_property( | ||
| entity.get_type().expect("property type"), | ||
| Nullability::Unspecified, | ||
| ); | ||
| let type_out = RustType::parse_property( | ||
| entity.get_type().expect("property type"), | ||
| default_nullability, | ||
| ); | ||
|
|
||
| let mut memory_management = MemoryManagement::Normal; | ||
|
|
||
| entity.visit_children(|entity, _parent| { | ||
| match entity.get_kind() { | ||
| EntityKind::ObjCClassRef | ||
| | EntityKind::ObjCProtocolRef | ||
| | EntityKind::TypeRef | ||
| | EntityKind::ParmDecl => { | ||
| // Ignore | ||
| } | ||
| EntityKind::ObjCReturnsInnerPointer => { | ||
| if memory_management != MemoryManagement::Normal { | ||
| panic!("got unexpected ObjCReturnsInnerPointer") | ||
| } | ||
| memory_management = MemoryManagement::ReturnsInnerPointer; | ||
| } | ||
| EntityKind::ObjCInstanceMethodDecl => { | ||
| println!("method in property: {entity:?}"); | ||
| } | ||
| EntityKind::UnexposedAttr => {} | ||
| _ => panic!("Unknown property child: {:?}, {:?}", entity, _parent), | ||
| }; | ||
| EntityVisitResult::Continue | ||
| }); | ||
|
|
||
| let qualifier = entity.get_objc_qualifiers().map(Qualifier::parse); | ||
| assert_eq!(qualifier, None, "properties do not support qualifiers"); | ||
|
|
||
| Some(Property { | ||
| name, | ||
| getter_name, | ||
| setter_name, | ||
| availability, | ||
| is_class, | ||
| is_optional_protocol: entity.is_objc_optional(), | ||
| type_in, | ||
| type_out, | ||
| safe: !data.unsafe_, | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| impl ToTokens for Property { | ||
| fn to_tokens(&self, tokens: &mut TokenStream) { | ||
| let method = Method { | ||
| selector: self.getter_name.clone(), | ||
| fn_name: self.getter_name.clone(), | ||
| availability: self.availability.clone(), | ||
| is_class: self.is_class, | ||
| is_optional_protocol: self.is_optional_protocol, | ||
| memory_management: MemoryManagement::Normal, | ||
| designated_initializer: false, | ||
| arguments: Vec::new(), | ||
| result_type: RustTypeReturn::new(self.type_out.clone()), | ||
| safe: self.safe, | ||
| }; | ||
| method.to_tokens(tokens); | ||
| if let Some(setter_name) = &self.setter_name { | ||
| let method = Method { | ||
| selector: setter_name.clone() + ":", | ||
| fn_name: setter_name.clone(), | ||
| availability: self.availability.clone(), | ||
| is_class: self.is_class, | ||
| is_optional_protocol: self.is_optional_protocol, | ||
| memory_management: MemoryManagement::Normal, | ||
| designated_initializer: false, | ||
| arguments: Vec::from([(self.name.clone(), None, self.type_in.clone())]), | ||
| result_type: RustTypeReturn::new(RustType::Void), | ||
| safe: self.safe, | ||
| }; | ||
| method.to_tokens(tokens); | ||
| } | ||
| } | ||
| } |
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