Enum QailError 

pub enum QailError {
    Parse {
        position: usize,
        message: String,
    },
    InvalidAction(String),
    MissingSymbol {
        symbol: &'static str,
        description: &'static str,
    },
    InvalidOperator(String),
    InvalidValue(String),
    Database(String),
    Connection(String),
    Execution(String),
    Config(String),
    Io(Error),
}

The main error type for QAIL operations.

Variants

Parse

Failed to parse the QAIL query string.

Fields

position: usize

message: String

InvalidAction(String)

Invalid action (must be get, set, del, or add).

MissingSymbol

Missing required symbol.

Fields

symbol: &'static str

description: &'static str

InvalidOperator(String)

Invalid operator.

InvalidValue(String)

Invalid value.

Database(String)

Database error.

Connection(String)

Connection error.

Execution(String)

Query execution error.

Config(String)

Configuration error.

Io(Error)

IO error.

Implementations

impl QailError

pub fn parse(position: usize, message: impl Into<String>) -> Self

Create a parse error at the given position.

pub fn missing(symbol: &'static str, description: &'static str) -> Self

Create a missing symbol error.

Trait Implementations

impl Debug for QailError

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

Formats the value using the given formatter.

impl Display for QailError

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

Formats the value using the given formatter.

impl Error for QailError

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<Error> for QailError

fn from(source: Error) -> Self

Converts to this type from the input type.