Enum ParserError 

pub enum ParserError {
    SyntaxError {
        message: String,
        position: SourcePosition,
        expected: Option<Vec<String>>,
    },
    SemanticError {
        message: String,
        position: Option<SourcePosition>,
    },
    LexicalError {
        message: String,
        position: SourcePosition,
    },
    BackendError {
        backend: String,
        message: String,
        position: Option<SourcePosition>,
    },
    TypeError {
        message: String,
        expected_type: Option<String>,
        actual_type: Option<String>,
        position: Option<SourcePosition>,
    },
    ConfigurationError {
        message: String,
    },
    UnsupportedFeature {
        backend: String,
        feature: String,
        message: String,
    },
    Timeout {
        message: String,
        timeout_duration: Duration,
    },
    ResourceLimit {
        message: String,
        limit_type: String,
        current_value: u64,
        max_value: u64,
    },
    InternalError {
        message: String,
        cause: Option<String>,
    },
}

Parser-specific error type

Variants

SyntaxError

Syntax error during parsing

Fields

message: String

position: SourcePosition

expected: Option<Vec<String>>

SemanticError

Semantic validation error

Fields

message: String

position: Option<SourcePosition>

LexicalError

Lexical analysis error

Fields

message: String

position: SourcePosition

BackendError

Parser backend error

Fields

backend: String

message: String

position: Option<SourcePosition>

TypeError

Type validation error

Fields

message: String

expected_type: Option<String>

actual_type: Option<String>

position: Option<SourcePosition>

ConfigurationError

Configuration error

Fields

message: String

UnsupportedFeature

Unsupported feature error

Fields

backend: String

feature: String

message: String

Timeout

Timeout error

Fields

message: String

timeout_duration: Duration

ResourceLimit

Resource limit exceeded

Fields

message: String

limit_type: String

current_value: u64

max_value: u64

InternalError

Internal parser error

Fields

message: String

cause: Option<String>

Implementations

impl ParserError

pub fn syntax(message: impl Into<String>, position: SourcePosition) -> Self

Create a syntax error

pub fn syntax_with_expected( message: impl Into<String>, position: SourcePosition, expected: Vec<String>, ) -> Self

Create a syntax error with expected tokens

pub fn semantic(message: impl Into<String>) -> Self

Create a semantic error

pub fn semantic_at(message: impl Into<String>, position: SourcePosition) -> Self

Create a semantic error with position

pub fn lexical(message: impl Into<String>, position: SourcePosition) -> Self

Create a lexical error

pub fn backend(backend: impl Into<String>, message: impl Into<String>) -> Self

Create a backend error

pub fn backend_at( backend: impl Into<String>, message: impl Into<String>, position: SourcePosition, ) -> Self

Create a backend error with position

pub fn type_error(message: impl Into<String>) -> Self

Create a type error

pub fn type_mismatch( expected: impl Into<String>, actual: impl Into<String>, position: Option<SourcePosition>, ) -> Self

Create a type error with expected and actual types

pub fn configuration(message: impl Into<String>) -> Self

Create a configuration error

pub fn unsupported_feature( backend: impl Into<String>, feature: impl Into<String>, ) -> Self

Create an unsupported feature error

pub fn internal(message: impl Into<String>) -> Self

Create an internal error

pub fn internal_with_cause( message: impl Into<String>, cause: impl Display, ) -> Self

Create an internal error with cause

pub fn timeout(duration_ms: u64) -> Self

Create a timeout error

pub fn resource_limit( resource: impl Into<String>, limit: u64, actual: u64, ) -> Self

Create a resource limit exceeded error

pub fn position(&self) -> Option<&SourcePosition>

Get the position associated with this error (if any)

pub fn message(&self) -> String

Get the error message

pub fn is_recoverable(&self) -> bool

Check if this error is recoverable.

Recoverable errors include those where switching backends, retrying with a longer timeout, or raising a resource limit may allow progress.

pub fn category(&self) -> &ErrorCategory

Get the error category

pub fn severity(&self) -> &ErrorSeverity

Get the error severity

pub fn recovery_suggestions(&self) -> Vec<String>

Get suggested recovery actions

Trait Implementations

impl Clone for ParserError

fn clone(&self) -> ParserError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParserError

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

Formats the value using the given formatter.

impl Display for ParserError

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

Formats the value using the given formatter.

impl Error for ParserError

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 From<ParserError> for Error

fn from(err: ParserError) -> Self

Converts to this type from the input type.