Enum LoweringError 

pub enum LoweringError {
    UnsupportedOp(String),
    UnsupportedBuiltin(String),
    UnsupportedLoopBody(String),
    StatePlaneUnlowered(String),
}

Why the whole-program fabric lowering refused a program. A TYPED failure surface: unsupported constructs return Err(LoweringError) from the try_* entry points instead of panicking, so callers (and the lowering_coverage_lock ratchet) can tell “this construct is not lowered yet” apart from a real bug. The Display strings are byte-identical to the old panic! messages, so the panicking wrappers are unchanged.

Variants

UnsupportedOp(String)

A CFG-block op with no fabric tile (a loop/channel/error op in a straight-line body, etc.).

UnsupportedBuiltin(String)

A builtin with no fabric unit wired (only floor/sqrt over the float lane today).

UnsupportedLoopBody(String)

A loop-fabric body op with no tile (a nested jump the if-converter cannot absorb, etc.).

StatePlaneUnlowered(String)

A Mem/Heap STATE-PLANE cell reached the register-only SEQUENCED datapath. The sequenced fabric is a register-file arithmetic engine (multi-cycle divider + FPU + power tiles); Seq/string programs carry a shared heap and run on the wpe engine (or the state-plane block form — the named follow-on). Detected up front by try_emit_seq_program_verilog / try_emit_seq_datapath_verilog so a heap program is a typed refusal, never a raw panic.

Trait Implementations

impl Clone for LoweringError

fn clone(&self) -> LoweringError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LoweringError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for LoweringError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for LoweringError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for LoweringError

fn eq(&self, other: &LoweringError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for LoweringError

impl StructuralPartialEq for LoweringError