Enum ScanError 

pub enum ScanError {
    DuplicateName(Box<DuplicateNameError>),
    NotExpressible {
        entries: Vec<NotExpressibleEntry>,
    },
    AdapterInvariant {
        message: String,
    },
    DeclaredNotFound {
        entries: Vec<(&'static str, String)>,
    },
    QualifiedDeclaredTypes {
        entries: Vec<(String, String)>,
    },
}

Errors surfaced by the scan phase.

Variants

DuplicateName(Box<DuplicateNameError>)

NotExpressible

Items the flat language cannot express, all of them at once.

The message for each comes from ItemError, so one authority produces it. This replaces the per-item guards the registry used to duplicate — a self receiver, a non-ident parameter pattern, a disallowed impl Trait — which the frontend now catches with a richer diagnosis (it names the parameter).

Fields

entries: Vec<NotExpressibleEntry>

AdapterInvariant

An adapter-invariant check failed — see Prebindgen::validate. The message is adapter-authored and printed verbatim.

Fields

message: String

DeclaredNotFound

Explicitly declared items (functions, helper functions, constants) that match no indexed #[prebindgen] item. A declaration is a statement of intent — its target being absent is always a bug (a typo in build.rs, or the item was renamed/removed in the source crate), so this is a hard error, unlike the soft warnings for stale ignore entries. All missing names are collected before failing.

Fields

entries: Vec<(&'static str, String)>

QualifiedDeclaredTypes

Declared type keys that qualify a source item with its crate path (ptr_class!(myflat::Foo) where myflat is a chained source crate). Source items live in one flat namespace and are keyed by their bare name — the qualified spelling can never match a captured signature, so it is a hard error with a fix-it instead of a silent miss (issue #95). All offenders are collected before failing.

Fields

entries: Vec<(String, String)>

(qualified spelling, bare fix-it name) pairs.

Trait Implementations

impl Debug for ScanError

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

Formats the value using the given formatter.

impl Display for ScanError

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

Formats the value using the given formatter.

impl Error for ScanError

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 From<ParseError> for ScanError

fn from(e: ParseError) -> Self

Converts to this type from the input type.

impl From<ScanError> for WriteRustError

fn from(e: ScanError) -> Self

Converts to this type from the input type.