Enum GrammarSurfaceError 

pub enum GrammarSurfaceError {
    Skeleton {
        message: String,
    },
    Lowering {
        rule: Option<String>,
        message: String,
    },
    UndefinedReference {
        rule: String,
        name: String,
    },
}

Error raised while parsing grammar surface text.

Variants

Skeleton

The delimiter skeleton could not be parsed.

Fields

message: String

Human-readable error message.

Lowering

A skeleton node had no valid lowering.

Fields

rule: Option<String>

Rule being lowered, when known.

message: String

Human-readable error message.

UndefinedReference

A rule referenced a name that no rule defines.

Fields

rule: String

Rule containing the undefined reference.

name: String

Referenced rule name that was not defined.

Trait Implementations

impl Clone for GrammarSurfaceError

fn clone(&self) -> GrammarSurfaceError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GrammarSurfaceError

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

Formats the value using the given formatter.

impl Display for GrammarSurfaceError

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

Formats the value using the given formatter.

impl Error for GrammarSurfaceError

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 PartialEq for GrammarSurfaceError

fn eq(&self, other: &GrammarSurfaceError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for GrammarSurfaceError

impl StructuralPartialEq for GrammarSurfaceError