Enum LayoutError 

pub enum LayoutError {
    UnknownHardware(String),
    Manifest {
        path: PathBuf,
        message: String,
    },
    UnknownVendor {
        hardware: String,
        vendor: String,
    },
    Inherits {
        hardware: String,
        message: String,
    },
    Redirect {
        model_dir: PathBuf,
        message: String,
    },
    UnknownModel(PathBuf),
    NoKernelDirectory(String),
    Symlink(PathBuf),
    Use {
        manifest: PathBuf,
        entry: String,
        message: String,
    },
    UseCollides {
        manifest: PathBuf,
        name: String,
        existing: PathBuf,
    },
    UndeclaredShadow {
        name: String,
        winner: PathBuf,
        loser: PathBuf,
        manifest: PathBuf,
    },
    DeadShadow {
        manifest: PathBuf,
        stem: String,
    },
    SelfShadow {
        name: String,
        source: PathBuf,
    },
    RetiredKey {
        path: PathBuf,
        key: String,
    },
}

Variants

UnknownHardware(String)

2026-09-26: kernels/<hw> has no HARDWARE.toml.

Manifest

2026-09-26: A manifest did not parse, or holds a key of the wrong shape.

Fields

path: PathBuf

message: String

UnknownVendor

2026-09-26: [hardware] vendor names no known source extension.

Fields

hardware: String

vendor: String

Inherits

2026-09-26: [hardware] inherits names itself, a missing tree, a tree that itself inherits (chains are refused, as kernel_source chains are), or a tree with another source extension.

Fields

hardware: String

message: String

Redirect

2026-09-26: [model] kernel_source names no model directory, or one that redirects.

Fields

model_dir: PathBuf

message: String

UnknownModel(PathBuf)

2026-09-26: The model directory the target names does not exist.

NoKernelDirectory(String)

2026-09-26: No layer directory exists at all for the target.

Symlink(PathBuf)

2026-09-26: A symlink inside a consulted directory, or a [sources] use path that is one. Files are shared with [sources] use, not symlinks.

Use

2026-09-26: A [sources] use entry that resolves to nothing usable.

Fields

manifest: PathBuf

entry: String

message: String

UseCollides

2026-09-26: Two entries in one layer share a name (a use naming a file the directory already holds, or two uses of one name).

Fields

manifest: PathBuf

name: String

existing: PathBuf

UndeclaredShadow

2026-09-26: One name resolves in two layers and the winner’s KERNEL.toml does not declare it in [shadow].

Fields

name: String

winner: PathBuf

loser: PathBuf

manifest: PathBuf

DeadShadow

2026-09-26: A [shadow] key whose entry shadows nothing.

Fields

manifest: PathBuf

stem: String

SelfShadow

2026-09-26: A winner that is the very file it would shadow, reached twice.

Fields

name: String

source: PathBuf

RetiredKey

2026-09-26: HARDWARE.toml [kernels] overrides, which is refused: a replacement is declared in [shadow] of the directory’s KERNEL.toml.

Fields

path: PathBuf

key: String

Trait Implementations

impl Clone for LayoutError

fn clone(&self) -> LayoutError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayoutError

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

Formats the value using the given formatter.

impl Display for LayoutError

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

Formats the value using the given formatter.

impl Error for LayoutError

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 LayoutError

fn eq(&self, other: &LayoutError) -> 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 LayoutError

impl StructuralPartialEq for LayoutError