cairo-lang-lowering 2.17.0

Cairo lowering phase.
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
50
51
52

//! > Test test_scrub_units simple scenario.

//! > test_runner_name
test_scrub_units

//! > function_code
fn foo(a: Option<()>) {
    bar::<(), MyDestruct>(a.expect('Should be some.'))
}

//! > function_name
foo

//! > module_code
fn bar<T, +Destruct<T>>(a: T) {}


pub impl MyDestruct of Destruct<()> {
    #[inline(always)]
    fn destruct(self: ()) nopanic {
        my_fn()
    }
}

extern fn my_fn() nopanic;

//! > semantic_diagnostics

//! > lowering_diagnostics

//! > before
Parameters: v0: core::option::Option::<()>
blk0 (root):
Statements:
  (v1: core::felt252) <- 433078840523992521883553776259654958
  (v2: ()) <- core::option::OptionTraitImpl::<()>::expect(v0, v1)
  (v3: ()) <- test::bar::<(), test::MyDestruct>(v2)
End:
  Return(v3)

//! > after
Parameters: v0: core::option::Option::<()>
blk0 (root):
Statements:
  (v1: core::felt252) <- 433078840523992521883553776259654958
  () <- core::option::OptionTraitImpl::<()>::expect(v0, v1)
  (v2: ()) <- struct_construct()
  () <- test::bar::<(), test::MyDestruct>(v2)
  (v3: ()) <- struct_construct()
  () <- struct_destructure(v3)
End:
  Return()