synthez_core/
has.rs

1//! Abstraction over [`syn`] types containing something.
2
3/// [`syn`] types containing [`syn::Attribute`]s.
4pub trait Attrs {
5    /// Returns contained [`syn::Attribute`]s.
6    #[must_use]
7    fn attrs(&self) -> &[syn::Attribute];
8}
9
10impl Attrs for Vec<syn::Attribute> {
11    fn attrs(&self) -> &[syn::Attribute] {
12        self
13    }
14}
15
16/// Helper macro for implementing [`Attrs`] for the given type.
17macro_rules! impl_attrs_for {
18    ($( $ty:ty, )+) => {$(
19        impl Attrs for $ty {
20            fn attrs(&self) -> &[syn::Attribute] {
21                &*self.attrs
22            }
23        }
24    )+}
25}
26
27impl_attrs_for! {
28    syn::BareFnArg,
29    syn::ConstParam,
30    syn::DeriveInput,
31    syn::Field,
32    syn::LifetimeParam,
33    syn::TypeParam,
34    syn::Variant,
35}
36
37#[cfg(feature = "full")]
38/// Helper macro for implementing [`Attrs`] for the given type, conditioned by a
39/// `full` Cargo feature.
40macro_rules! impl_attrs_full_for {
41    ($( $ty:ty, )+) => {$(
42        #[cfg(feature = "full")]
43        impl Attrs for $ty {
44            fn attrs(&self) -> &[syn::Attribute] {
45                &*self.attrs
46            }
47        }
48    )+}
49}
50
51#[cfg(feature = "full")]
52impl_attrs_full_for! {
53    syn::Arm,
54    syn::ExprArray,
55    syn::ExprAssign,
56    syn::ExprAsync,
57    syn::ExprAwait,
58    syn::ExprBinary,
59    syn::ExprBlock,
60    syn::ExprBreak,
61    syn::ExprCall,
62    syn::ExprCast,
63    syn::ExprClosure,
64    syn::ExprContinue,
65    syn::ExprField,
66    syn::ExprForLoop,
67    syn::ExprGroup,
68    syn::ExprIf,
69    syn::ExprIndex,
70    syn::ExprLet,
71    syn::ExprLit,
72    syn::ExprLoop,
73    syn::ExprMacro,
74    syn::ExprMatch,
75    syn::ExprMethodCall,
76    syn::ExprParen,
77    syn::ExprPath,
78    syn::ExprRange,
79    syn::ExprReference,
80    syn::ExprRepeat,
81    syn::ExprReturn,
82    syn::ExprStruct,
83    syn::ExprTry,
84    syn::ExprTryBlock,
85    syn::ExprTuple,
86    syn::ExprUnary,
87    syn::ExprUnsafe,
88    syn::ExprWhile,
89    syn::ExprYield,
90    syn::FieldPat,
91    syn::FieldValue,
92    syn::File,
93    syn::ForeignItemFn,
94    syn::ForeignItemMacro,
95    syn::ForeignItemStatic,
96    syn::ForeignItemType,
97    syn::ImplItemConst,
98    syn::ImplItemFn,
99    syn::ImplItemMacro,
100    syn::ImplItemType,
101    syn::ItemConst,
102    syn::ItemEnum,
103    syn::ItemExternCrate,
104    syn::ItemFn,
105    syn::ItemForeignMod,
106    syn::ItemImpl,
107    syn::ItemMacro,
108    syn::ItemMod,
109    syn::ItemStatic,
110    syn::ItemStruct,
111    syn::ItemTrait,
112    syn::ItemTraitAlias,
113    syn::ItemType,
114    syn::ItemUnion,
115    syn::ItemUse,
116    syn::Local,
117    syn::PatIdent,
118    syn::PatOr,
119    syn::PatReference,
120    syn::PatRest,
121    syn::PatSlice,
122    syn::PatStruct,
123    syn::PatTuple,
124    syn::PatTupleStruct,
125    syn::PatType,
126    syn::PatWild,
127    syn::Receiver,
128    syn::TraitItemConst,
129    syn::TraitItemFn,
130    syn::TraitItemMacro,
131    syn::TraitItemType,
132}
synthez_core/has.rs

synthez_core/
has.rs
