cairo-lang-lowering 2.17.0

Cairo lowering phase.
Documentation 
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//! > Test inlining diagnostics for a recursive function.

//! > test_runner_name
test_function_inlining

//! > function_code
#[inline(always)]
fn foo(ref a: felt252, b: felt252) -> felt252 {
    foo(ref a, b);
    b
}

//! > function_name
foo

//! > semantic_diagnostics

//! > lowering_diagnostics
error[E3005]: Cannot inline a function that might call itself.
 --> lib.cairo:1:1-5:1
  #[inline(always)]
 _^
| ...
| }
|_^

//! > before
<Failed lowering function - run with RUST_LOG=warn (or less) to see diagnostics>

//! > after
<Failed lowering function - run with RUST_LOG=warn (or less) to see diagnostics>

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

//! > Test inlining a function where the last block does not return.

//! > test_runner_name
test_function_inlining

//! > function_name
foo

//! > function_code
fn foo(n: felt252) -> felt252 {
    bar(n)
}

//! > module_code
#[inline(always)]
fn bar(n: felt252) -> felt252 {
    if n == 0 {
        return 1;
    } else {
        return 1;
    }
}

//! > semantic_diagnostics

//! > before
Parameters: v0: core::felt252
blk0 (root):
Statements:
  (v1: core::felt252) <- test::bar(v0)
End:
  Return(v1)

//! > after
Parameters: v0: core::felt252
blk0 (root):
Statements:
End:
  Goto(blk1, {})

blk1:
Statements:
End:
  Match(match core::felt252_is_zero(v0) {
    IsZeroResult::Zero => blk2,
    IsZeroResult::NonZero(v2) => blk3,
  })

blk2:
Statements:
End:
  Goto(blk4, {})

blk3:
Statements:
End:
  Goto(blk4, {})

blk4:
Statements:
  (v3: core::felt252) <- 1
End:
  Goto(blk5, {v3 -> v1})

blk5:
Statements:
End:
  Return(v1)

//! > lowering_diagnostics