pub enum LexParseError<LexemeT: Lexeme<StorageT>, StorageT: Hash> {
    LexError(LexError),
    ParseError(ParseError<LexemeT, StorageT>),
}
Expand description

A lexing or parsing error. Although the two are quite distinct in terms of what can be reported to users, both can (at least conceptually) occur at any point of the intertwined lexing/parsing process.

Variants

LexError(LexError)

ParseError(ParseError<LexemeT, StorageT>)

Implementations

A pretty-printer of a lexer/parser error. This isn’t suitable for all purposes, but it’s often good enough. The output format is not guaranteed to be stable but is likely to be of the form:

Parsing error at line 3 column 8. Repair sequences found:
  1: Insert ID
  2: Delete +, Shift 3

If you are using the compile-time parse system, your grm_y module exposes a suitable epp function; if you are using the run-time system, YaccGrammar exposes a suitable epp function, though you will have to wrap it in a closure e.g. &|t| grm.token_epp(t).

Trait Implementations

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

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

👎Deprecated since 1.42.0:

use the Display impl or to_string()

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

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

Provides type based access to context intended for error reports. Read more

Converts to this type from the input type.

Converts to this type from the input type.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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

Data providers should implement this method to provide all values they are able to provide by using demand. Read more

Converts the given value to a String. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.