2 releases
0.1.3 | May 26, 2023 |
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0.1.2 |
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0.1.1 |
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0.1.0 | May 25, 2023 |
#1375 in Procedural macros
38 downloads per month
5KB
54 lines
convert-chain
A tiny crate for chain type converter. There is only one macro convert_chian
in it
Assuming there are 3 sturct with following relationship.
struct A;
struct B;
struct C;
impl From<B> for A { ... }
impl From<C> for B { ... }
You can use the macro to directly convert an expression or create a closure for the convert.
-
Directly convert
let c = C; let a = convert_chain!(c; B, A);
-
Create a closure
let c = C; let f = convert_chain!(B, A); let a = f(c);
Both of the above methods are equivalent to
let c = C;
let a = A::from(B::from(c));
lib.rs
:
convert-chain
A tiny crate for chain type converter. There is only one macro convert_chian
in it
Assuming there are 3 sturct with following relationship.
struct A;
struct B;
struct C;
impl From<B> for A { ... }
impl From<C> for B { ... }
You can use the macro to directly convert an expression or create a closure for the convert.
-
Directly convert
let c = C; let a = convert_chain!(c; B, A);
-
Create a closure
let c = C; let f = convert_chain!(B, A); let a = f(c);
Both of the above methods are equivalent to
let c = C;
let a = A::from(B::from(c));
Dependencies
~255–700KB
~17K SLoC