Enum RunError 

pub enum RunError {
    Read(PathBuf, Error),
    ParseHtml(String),
    ParseCss(String),
    ApplyCss(String),
    Plugin(String),
    Window(String),
    LayoutEngine(String),
    Headless(String),
    Render(String),
    Script(String),
    Config(ConfigError),
    Layout(FlatLayout),
    I18n(String),
    Artifact(String),
    ParserDisabled,
    Assets(PathBuf, String),
}

Errors raised while preparing the app.

Variants

Read(PathBuf, Error)

Required input file missing or unreadable.

ParseHtml(String)

Markup failed to parse.

ParseCss(String)

CSS failed to parse.

ApplyCss(String)

CSS application failed.

Plugin(String)

A compiler plugin failed to load or one of its hooks failed. The message names the plugin.

Window(String)

The window backend could not run the app, or the build carries none.

LayoutEngine(String)

The build carries no layout engine.

Headless(String)

Headless mode failed to initialise (offscreen renderer or signal-handler install). Raised only by crate::run_headless::run_app_headless_rendered.

Render(String)

[render] backend names a backend this build does not carry, or the build carries none.

Script(String)

The app’s script failed to compile. Raised by check_app, which compiles the combined <script> source with the exact engine settings lumenc run loads with - a script that would die at load fails the check instead of false-passing.

Config(ConfigError)

lumen.toml is invalid (parse / read error).

Layout(FlatLayout)

The app’s code is at its root rather than under src/; carries the migration hint. See crate::app_layout::FlatLayout.

I18n(String)

A locale/*.ftl catalogue could not be read or parsed, or its filename is not a BCP-47 tag.

Artifact(String)

A precompiled AOT artifact failed to read / decode.

ParserDisabled

The runtime was built without the runtime-parse feature (parser removed) and asked to run an app from source rather than from a precompiled artifact. Pass --artifact <file> (built via lumenc build) or rebuild with --features runtime-parse.

Assets(PathBuf, String)

The .lpak archive named by RunOptions::assets could not be read.

Trait Implementations

impl Debug for RunError

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

Formats the value using the given formatter.

impl Display for RunError

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

Formats the value using the given formatter.

impl Error for RunError

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<ConfigError> for RunError

fn from(source: ConfigError) -> Self

Converts to this type from the input type.

impl From<FlatLayout> for RunError

fn from(source: FlatLayout) -> Self

Converts to this type from the input type.