Enum full_moon::ast::AstError

pub enum AstError<'a> {
    Empty,
    NoEof,
    UnexpectedToken {
        token: Token<'a>,
        additional: Option<Cow<'a, str>>,
    },
}

An error that occurs when creating the ast after tokenizing

Variants

Empty

There were no tokens passed, which shouldn't happen normally

NoEof

Tokens passed had no end of file token, which shouldn't happen normally

UnexpectedToken

An unexpected token, the most likely scenario when getting an AstError

Fields of UnexpectedToken

token: Token<'a>

The token that caused the error

additional: Option<Cow<'a, str>>

Any additional information that could be provided for debugging

Trait Implementations

impl<'a> Clone for AstError<'a>

fn clone(&self) -> AstError<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for AstError<'a>

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

Formats the value using the given formatter.

impl<'de: 'a, 'a> Deserialize<'de> for AstError<'a>

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl<'a> Display for AstError<'a>

fn fmt(&self, formatter: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a> Error for AstError<'a>

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()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl<'_> Owned for AstError<'_>

type Owned = AstError<'static>

What an owned version of the object looks like. Usually contains a 'static lifetime.

fn owned(&self) -> Self::Owned

Returns an owned version of the object.

impl<'a> PartialEq<AstError<'a>> for AstError<'a>

fn eq(&self, other: &AstError<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &AstError<'a>) -> bool

This method tests for !=.

impl<'a> Serialize for AstError<'a>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl<'a> StructuralPartialEq for AstError<'a>