Enum rhai::ParseErrorType

#[non_exhaustive]
pub enum ParseErrorType {
    UnexpectedEOF,
    BadInput(LexError),
    UnknownOperator(String),
    MissingToken(String, String),
    MissingSymbol(String),
    MalformedCallExpr(String),
    MalformedIndexExpr(String),
    MalformedInExpr(String),
    MalformedCapture(String),
    DuplicatedProperty(String),
    DuplicatedSwitchCase,
    DuplicatedVariable(String),
    WrongSwitchDefaultCase,
    WrongSwitchCaseCondition,
    PropertyExpected,
    VariableExpected,
    Reserved(String),
    MismatchedType(String, String),
    ExprExpected(String),
    WrongDocComment,
    WrongFnDefinition,
    FnDuplicatedDefinition(String, usize),
    FnMissingName,
    FnMissingParams(String),
    FnDuplicatedParam(String, String),
    FnMissingBody(String),
    WrongExport,
    AssignmentToConstant(String),
    AssignmentToInvalidLHS(String),
    ExprTooDeep,
    LiteralTooLarge(String, usize),
    LoopBreak,
}

Type of error encountered when parsing a script.

Some errors never appear when certain features are turned on. They still exist so that the application can turn features on and off without going through massive code changes to remove/add back enum variants in match statements.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnexpectedEOF

The script ends prematurely.

BadInput

Error in the script text. Wrapped value is the lex error.

Tuple Fields of BadInput

0: LexError

UnknownOperator

An unknown operator is encountered. Wrapped value is the operator.

Tuple Fields of UnknownOperator

0: String

MissingToken

Expecting a particular token but not finding one. Wrapped values are the token and description.

Tuple Fields of MissingToken

0: String1: String

MissingSymbol

Expecting a particular symbol but not finding one. Wrapped value is the description.

Tuple Fields of MissingSymbol

0: String

MalformedCallExpr

An expression in function call arguments () has syntax error. Wrapped value is the error description (if any).

Tuple Fields of MalformedCallExpr

0: String

MalformedIndexExpr

An expression in indexing brackets [] has syntax error. Wrapped value is the error description (if any).

Never appears under the no_index feature.

Tuple Fields of MalformedIndexExpr

0: String

MalformedInExpr

An expression in an in expression has syntax error. Wrapped value is the error description (if any).

Never appears under the no_object and no_index features combination.

Tuple Fields of MalformedInExpr

0: String

MalformedCapture

A capturing has syntax error. Wrapped value is the error description (if any).

Never appears under the no_closure feature.

Tuple Fields of MalformedCapture

0: String

DuplicatedProperty

A map definition has duplicated property names. Wrapped value is the property name.

Never appears under the no_object feature.

Tuple Fields of DuplicatedProperty

0: String

DuplicatedSwitchCase

A switch case is duplicated.

DuplicatedVariable

A variable name is duplicated. Wrapped value is the variable name.

Tuple Fields of DuplicatedVariable

0: String

WrongSwitchDefaultCase

The default case of a switch statement is not the last.

WrongSwitchCaseCondition

The case condition of a switch statement is not appropriate.

PropertyExpected

Missing a property name for custom types and maps.

Never appears under the no_object feature.

VariableExpected

Missing a variable name after the let, const, for or catch keywords.

Reserved

An identifier is a reserved keyword.

Tuple Fields of Reserved

0: String

MismatchedType

An expression is of the wrong type. Wrapped values are the type requested and type of the actual result.

Tuple Fields of MismatchedType

0: String1: String

ExprExpected

Missing an expression. Wrapped value is the expression type.

Tuple Fields of ExprExpected

0: String

WrongDocComment

Defining a doc-comment in an appropriate place (e.g. not at global level).

Never appears under the no_function feature.

WrongFnDefinition

Defining a function fn in an appropriate place (e.g. inside another function).

Never appears under the no_function feature.

FnDuplicatedDefinition

Defining a function with a name that conflicts with an existing function. Wrapped values are the function name and number of parameters.

Never appears under the no_object feature.

Tuple Fields of FnDuplicatedDefinition

0: String1: usize

FnMissingName

Missing a function name after the fn keyword.

Never appears under the no_function feature.

FnMissingParams

A function definition is missing the parameters list. Wrapped value is the function name.

Never appears under the no_function feature.

Tuple Fields of FnMissingParams

0: String

FnDuplicatedParam

A function definition has duplicated parameters. Wrapped values are the function name and parameter name.

Never appears under the no_function feature.

Tuple Fields of FnDuplicatedParam

0: String1: String

FnMissingBody

A function definition is missing the body. Wrapped value is the function name.

Never appears under the no_function feature.

Tuple Fields of FnMissingBody

0: String

WrongExport

Export statement not at global level.

Never appears under the no_module feature.

AssignmentToConstant

Assignment to an a constant variable. Wrapped value is the constant variable name.

Tuple Fields of AssignmentToConstant

0: String

AssignmentToInvalidLHS

Assignment to an inappropriate LHS (left-hand-side) expression. Wrapped value is the error message (if any).

Tuple Fields of AssignmentToInvalidLHS

0: String

ExprTooDeep

Expression exceeding the maximum levels of complexity.

Never appears under the unchecked feature.

LiteralTooLarge

Literal exceeding the maximum size. Wrapped values are the data type name and the maximum size.

Never appears under the unchecked feature.

Tuple Fields of LiteralTooLarge

0: String1: usize

LoopBreak

Break statement not inside a loop.

Trait Implementations

impl Clone for ParseErrorType

fn clone(&self) -> ParseErrorType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ParseErrorType

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

Formats the value using the given formatter.

impl Display for ParseErrorType

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

Formats the value using the given formatter.

impl From<LexError> for ParseErrorType

fn from(err: LexError) -> Self

Performs the conversion.

impl From<ParseErrorType> for Box<EvalAltResult>

fn from(err: ParseErrorType) -> Self

Performs the conversion.

impl From<ParseErrorType> for EvalAltResult

fn from(err: ParseErrorType) -> Self

Performs the conversion.

impl Hash for ParseErrorType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<ParseErrorType> for ParseErrorType

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

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

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

This method tests for !=.

impl Eq for ParseErrorType

impl StructuralEq for ParseErrorType

impl StructuralPartialEq for ParseErrorType