Enum NightjarLanguageError 

pub enum NightjarLanguageError {
    ParseError {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    TypeError {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    ArgumentError {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    SymbolNotFound {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    AmbiguousSymbol {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    DivisionByZero {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    RecursionError {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    IndexError {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    IntegerOverflow {
        span: Span,
        code: ErrorCode,
        message: String,
    },
    ScopeError {
        span: Span,
        code: ErrorCode,
        message: String,
    },
}

Unified error type for the entire crate.

Variants

ParseError

Expression does not conform to the grammar (E001).

Fields

span: Span

Source span of the offending token.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

TypeError

Operator applied to incompatible types (E002).

Fields

span: Span

Source span of the offending expression.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

ArgumentError

Wrong number of operands for an operator (E003).

Fields

span: Span

Source span of the offending call.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

SymbolNotFound

Symbol path not present in the payload (E004).

Fields

span: Span

Source span of the offending symbol reference.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

AmbiguousSymbol

Reserved for a future shorthand-lookup mode; not raised today (E005).

Fields

span: Span

Source span of the offending symbol reference.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

DivisionByZero

Div or Mod invoked with a zero divisor (E006).

Fields

span: Span

Source span of the offending operation.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

RecursionError

AST nesting exceeded the configured max_depth (E007).

Fields

span: Span

Source span at which the limit was exceeded.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

IndexError

Get/Head/Tail ran off the end of a list (E008).

Fields

span: Span

Source span of the offending operation.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

IntegerOverflow

Checked integer arithmetic overflowed (E009).

Fields

span: Span

Source span of the offending operation.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

ScopeError

@ element-relative symbol used outside any quantifier predicate (E010).

Fields

span: Span

Source span of the offending symbol reference.

code: ErrorCode

Stable error code.

message: String

Human-readable diagnostic.

Implementations

impl NightjarLanguageError

pub fn span(&self) -> Span

Source span of the error within the original expression text.

pub fn code(&self) -> ErrorCode

Stable ErrorCode tag identifying the error variant.

pub fn message(&self) -> &str

Human-readable diagnostic message attached to the error.

Trait Implementations

impl Clone for NightjarLanguageError

fn clone(&self) -> NightjarLanguageError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NightjarLanguageError

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

Formats the value using the given formatter.

impl Display for NightjarLanguageError

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

Formats the value using the given formatter.

impl Error for NightjarLanguageError

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 NightjarLanguageError

fn eq(&self, other: &NightjarLanguageError) -> 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 StructuralPartialEq for NightjarLanguageError