Enum ConfigError 

pub enum ConfigError {
    Io {
        path: String,
        source: Error,
    },
    Parse {
        path: String,
        source: Error,
    },
    Shape(Error),
    EnvOverride {
        var: String,
        detail: String,
    },
}

Errors the layered loader can raise.

Variants

Io

config/default.toml couldn’t be opened or read. The env-specific overlay is optional (skipped silently when missing); the default file is the contract.

Fields

path: String

source: Error

Parse

TOML syntax error somewhere in the merged tree.

Fields

path: String

source: Error

Shape(Error)

Final deserialise into Settings failed — usually a type mismatch (e.g. [database].pool_max_size = "ten").

EnvOverride

A RUSTANGO__* env var couldn’t be parsed into the path it targets (e.g. malformed integer).

Fields

var: String

detail: String

Trait Implementations

impl Debug for ConfigError

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

Formats the value using the given formatter.

impl Display for ConfigError

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

Formats the value using the given formatter.

impl Error for ConfigError

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.