Enum L10nError 

#[non_exhaustive]
pub enum L10nError {
    Decompression(String),
    InvalidUtf8(FromUtf8Error),
    InvalidLanguage {
        lang: String,
        reason: String,
    },
    Builtins(String),
    ResourceParse(Vec<String>),
    AddResource(Vec<String>),
    MessageNotFound {
        id: String,
    },
    MessageHasNoValue {
        id: String,
    },
    AttributeNotFound {
        id: String,
        attribute: String,
    },
    Format {
        id: String,
        attribute: Option<String>,
        errors: Vec<String>,
    },
}

An error from loading a localization bundle or formatting one of its messages at runtime.

Returned by L10nBundle, L10nLanguageVec and the generated L10nLanguage::new. The generated message accessors unwrap this: a failure there means the generated code and the embedded .ftl have drifted apart, which is a build-time bug rather than something to handle at runtime.

The variants carry owned strings rather than fluent-bundle’s own error types on purpose, so this enum does not change shape when that (pre-1.0) dependency is updated. It is #[non_exhaustive] so new variants can be added in a minor release.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Decompression(String)

The user-supplied decompressor (for a compressed single-file build) returned an error. Carries that error’s message.

InvalidUtf8(FromUtf8Error)

The .ftl bytes were not valid UTF-8.

InvalidLanguage

The language identifier (e.g. "en-US") could not be parsed.

Fields

lang: String

The identifier that failed to parse.

reason: String

A human-readable description of why it failed.

Builtins(String)

The Fluent builtins (NUMBER, …) could not be registered on the bundle.

ResourceParse(Vec<String>)

The .ftl resource failed to parse. One entry per parser error.

AddResource(Vec<String>)

The resource could not be added to the bundle (e.g. a message id that collides with one already present).

MessageNotFound

No message with this id exists in the bundle.

Fields

id: String

The message id that was looked up.

MessageHasNoValue

The message exists but has no value of its own (it has only attributes).

Fields

id: String

The message id that was looked up.

AttributeNotFound

The message exists but has no attribute with this name.

Fields

id: String

The message id.

attribute: String

The attribute that was looked up.

Format

Formatting the message or attribute failed — typically a missing or wrongly-typed argument. One entry per formatting error.

Fields

id: String

The message id being formatted.

attribute: Option<String>

The attribute being formatted, if any.

errors: Vec<String>

One entry per formatting error reported by fluent-bundle.

Trait Implementations

impl Debug for L10nError

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

Formats the value using the given formatter.

impl Display for L10nError

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

Formats the value using the given formatter.

impl Error for L10nError

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.