cairo-lang-lowering 2.21.0

Cairo lowering phase.
Documentation 
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//! > Per-stage signature of a panicking function.

//! > test_runner_name
test_per_stage_signature

//! > cairo_code
#[target_function]
fn foo(ref a: u32, b: u32) -> u32 {
    a = a + b;
    a
}

//! > monomorphized
(u32, u32) -> u32 refs(u32)

//! > pre_optimizations
(u32, u32) -> PanicResult::<(u32, u32)>

//! > post_baseline
(u32, u32) -> PanicResult::<(u32, u32)>

//! > final
(RangeCheck, u32, u32) -> PanicResult::<(u32, u32)> refs(RangeCheck)

//! > ==========================================================================

//! > Per-stage signature of a nopanic function, where the extra returns survive panic lowering.

//! > test_runner_name
test_per_stage_signature

//! > cairo_code
#[target_function]
fn foo(ref a: felt252, b: felt252) -> felt252 nopanic {
    a = core::pedersen::pedersen(a, b);
    b
}

//! > monomorphized
(felt252, felt252) -> felt252 refs(felt252)

//! > pre_optimizations
(felt252, felt252) -> felt252 refs(felt252)

//! > post_baseline
(felt252, felt252) -> felt252 refs(felt252)

//! > final
(Pedersen, felt252, felt252) -> felt252 refs(Pedersen, felt252)

//! > ==========================================================================

//! > Per-stage signature of a function with explicitly declared implicits.

//! > test_runner_name
test_per_stage_signature

//! > cairo_code
#[target_function]
fn foo(a: felt252) -> felt252 implicits(core::pedersen::Pedersen) nopanic {
    a
}

//! > monomorphized
(felt252) -> felt252

//! > pre_optimizations
(felt252) -> felt252

//! > post_baseline
(felt252) -> felt252

//! > final
(Pedersen, felt252) -> felt252 refs(Pedersen)