1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
macro_rules! builder {
($field:ident, $field_type:ty) => {
pub fn $field(mut self,
$field: $field_type) -> Self {
self.$field = $field;
self
}
};
}
macro_rules! builder_s {
($field:ident) => {
pub fn $field<S: Into<String>>(mut self,
$field: S) -> Self {
self.$field = $field.into();
self
}
};
}
macro_rules! builder_o {
($field:ident, $field_type:ty) => {
pub fn $field(mut self,
$field: $field_type) -> Self {
self.$field = Some($field.into());
self
}
};
}
macro_rules! builder_so {
($field:ident) => {
builder!($field, Option<String>);
};
}