1.Generate with-constructor for each field on named struct.
#[derive(With)]
pub struct Foo {
pub a: i32,
pub b: String,
}This will generate code
impl Foo {
pub fn with_a(mut self, a: impl Into<i32>) -> Self {
self.a = a.into();
self
}
pub fn with_b(mut self, b: impl Into<String>) -> Self {
self.b = b.into();
self
}
}2.Generate with-constructor for each field on tuple struct.
#[derive(With)]
pub struct Bar (i32, String);This will generate code
impl Bar {
pub fn with_0(mut self, field_0: impl Into<i32>) -> Self {
self.0 = field_0.into();
self
}
pub fn with_1(mut self, field_1: impl Into<String>) -> Self {
self.1 = field_1.into();
self
}
}3.Generate with-constructor for specific fields on named struct.
#[derive(With)]
#[with(a)]
pub struct Foo {
pub a: i32,
pub b: String,
}This will generate code
impl Foo {
pub fn with_a(mut self, a: impl Into<i32>) -> Self {
self.a = a.into();
self
}
}4.Generate with-constructor for specific fields on tuple struct.
#[derive(With)]
#[with(1)]
pub struct Bar (i32, String);This will generate code
impl Bar {
pub fn with_1(mut self, field_1: impl Into<String>) -> Self {
self.1 = field_1.into();
self
}
}