Enum bracket::error::helper::HelperError

pub enum HelperError {
    Message(String),
    ArityExact(String, usize),
    ArityRange(String, usize, usize),
    ArgumentTypeString(String, usize),
    IterableExpected(String, usize),
    LookupField(String, String),
    InvalidNumericalOperand(String),
    TypeAssert(String, String, String),
    Syntax(SyntaxError),
    Render(Box<RenderError>),
    Io(IoError),
    Json(Error),
}

Variants

Message(String)

Generic error message for helpers.

ArityExact(String, usize)

Error when supplied arguments do not match an exact arity.

ArityRange(String, usize, usize)

Error when supplied arguments do not match an arity range.

ArgumentTypeString(String, usize)

Error when a helper expects a string argument.

IterableExpected(String, usize)

Error when a helper expects an iterable (object or array).

LookupField(String, String)

InvalidNumericalOperand(String)

TypeAssert(String, String, String)

Syntax(SyntaxError)

Proxy for syntax errors that occur via helpers.

For example when dynamically evaluating paths passed to the evaluate() function.

Render(Box<RenderError>)

Proxy for render errors that occur via helpers; for example when rendering inner templates.

Io(IoError)

Proxy I/O errors.

Json(Error)

Implementations

impl HelperError

pub fn new<S: AsRef<str>>(msg: S) -> Self

Create a new helper error with the given message.

Trait Implementations

impl Debug for HelperError

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

Formats the value using the given formatter.

impl Display for HelperError

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

Formats the value using the given formatter.

impl Error for HelperError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

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

impl From<Box<RenderError, Global>> for HelperError

fn from(source: Box<RenderError>) -> Self

Performs the conversion.

impl From<Error> for HelperError

fn from(source: Error) -> Self

Performs the conversion.

impl From<Error> for HelperError

fn from(err: Error) -> Self

Performs the conversion.

impl From<HelperError> for RenderError

fn from(source: HelperError) -> Self

Performs the conversion.

impl From<IoError> for HelperError

fn from(source: IoError) -> Self

Performs the conversion.

impl From<SyntaxError> for HelperError

fn from(source: SyntaxError) -> Self

Performs the conversion.