Enum ExtensionError 

pub enum ExtensionError {
    InvalidRegistry {
        message: String,
    },
    MissingArgs {
        missing: Vec<String>,
        declared: BTreeSet<String>,
        extension_id: ExtensionId,
        example: String,
        help_command: String,
    },
    UnexpectedArg {
        token: String,
        declared: BTreeSet<String>,
        extension_id: ExtensionId,
        help_command: String,
    },
    PathVarWithoutPath {
        var: String,
    },
    Template {
        kind: TemplateErrorKind,
        message: String,
    },
    Preexec {
        kind: Option<PreexecFailureKind>,
        message: String,
        source: Option<Box<dyn Error + Send + Sync + 'static>>,
    },
    InvalidCommand {
        source: ValidationError,
    },
    Io {
        message: String,
        source: Option<Box<dyn Error + Send + Sync + 'static>>,
    },
}

Structured extension-engine failure.

Variants

InvalidRegistry

Registry JSON or schema is invalid.

Fields

message: String

Human-readable load failure.

MissingArgs

One or more required {arg:name} flags were missing.

Fields

missing: Vec<String>

Missing flags including leading dashes (--root).

declared: BTreeSet<String>

All declared {arg:*} names (no dashes).

extension_id: ExtensionId

Extension that required the flags.

example: String

Copy-paste example from the skill card.

help_command: String

Invocation-prefix help (wyvern compose render --help), not the id.

UnexpectedArg

Unexpected token after a successful prefix match.

Fields

token: String

Offending token.

declared: BTreeSet<String>

Declared {arg:*} names (no dashes).

extension_id: ExtensionId

Extension that matched argv.

help_command: String

Invocation-prefix help (wyvern compose render --help), not the id.

PathVarWithoutPath

Path-derived template used without a matched path.

Fields

var: String

Template variable name.

Template

Template expansion failure (see TemplateErrorKind for the sub-mode).

Fields

kind: TemplateErrorKind

Discriminated substitution failure class.

message: String

Substitution failure detail.

Preexec

Preexec process failed or could not be spawned.

Fields

kind: Option<PreexecFailureKind>

Spawn-not-found, nonzero-exit, or timeout (None for other spawn I/O).

message: String

Human-readable subprocess failure.

source: Option<Box<dyn Error + Send + Sync + 'static>>

Original error if available.

InvalidCommand

Expanded command failed wyvern_schema::validate.

Fields

source: ValidationError

Schema validation error.

Io

Filesystem failure while loading or expanding.

Fields

message: String

Human-readable I/O error description.

source: Option<Box<dyn Error + Send + Sync + 'static>>

Original I/O error if available.

Implementations

impl ExtensionError

pub fn exit_code(&self) -> i32

Stable process exit code for this failure.

Trait Implementations

impl Debug for ExtensionError

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

Formats the value using the given formatter.

impl Display for ExtensionError

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

Formats the value using the given formatter.

impl Error for ExtensionError

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.