code-gen 0.10.0

This library aids in code generation.
Documentation 
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
39
40
41
42
43
44
45
46
47
48
49

use crate::rust::Var;
use crate::{CodeBuffer, Expression, WithName};

/// An element with function generics. Writes `<Name, ...>` in brackets and a separate `where`
/// clause with the type bounds.
pub trait WithFnGenerics: Sized {
    /// Gets the generic type parameters.
    fn generics(&self) -> &[Var];

    /// Adds the `generic` type parameter.
    fn add_generic<V>(&mut self, generic: V)
    where
        V: Into<Var>;

    /// Adds the `generic` type parameter.
    #[must_use]
    fn with_generic<V>(mut self, generic: V) -> Self
    where
        V: Into<Var>,
    {
        self.add_generic(generic);
        self
    }

    /// Writes the generic brackets.
    fn write_generic_brackets(&self, b: &mut CodeBuffer) {
        if let Some((first, rest)) = self.generics().split_first() {
            b.push('<');
            first.write_name(b);
            for generic in rest {
                b.write(", ");
                generic.write_name(b);
            }
            b.push('>');
        }
    }

    /// Writes the generic where clause.
    fn write_generic_where(&self, b: &mut CodeBuffer) {
        if let Some((first, rest)) = self.generics().split_first() {
            b.write(" where ");
            first.write(b);
            for generic in rest {
                b.write(", ");
                generic.write(b);
            }
        }
    }
}