Enum parsley::Error

pub enum Error {
    Syntax(SyntaxError),
    Type {
        expected: &'static str,
        given: String,
    },
    UndefinedSymbol {
        sym: String,
    },
    Arity {
        expected: usize,
        given: usize,
    },
    ArityMin {
        expected: usize,
        given: usize,
    },
    ArityMax {
        expected: usize,
        given: usize,
    },
    NotAList {
        atom: String,
    },
    NullList,
    NotAProcedure {
        exp: String,
    },
    Index {
        i: usize,
    },
    IO(String),
}

Multipurpose error type.

Variants

Syntax(SyntaxError)

Type

Fields

expected: &'static str

given: String

UndefinedSymbol

Fields

sym: String

Arity

Fields

expected: usize

given: usize

ArityMin

Fields

expected: usize

given: usize

ArityMax

Fields

expected: usize

given: usize

NotAList

Fields

atom: String

NullList

NotAProcedure

Fields

exp: String

Index

Fields

i: usize

IO(String)

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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

fn provide(&'a self, req: &mut Demand<'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 Error

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(e: Error) -> Self

Converts to this type from the input type.