Enum qoqo_calculator::CalculatorError

pub enum CalculatorError {
    NotConvertable,
    FloatSymbolicNotConvertable {
        val: String,
    },
    ComplexSymbolicNotConvertable {
        val: CalculatorComplex,
    },
    ComplexCanNotBeConvertedToFloat {
        val: CalculatorComplex,
    },
    ParsingError {
        msg: &'static str,
    },
    NotImplementedError {
        fct: &'static str,
    },
    FunctionNotFound {
        fct: String,
    },
    VariableNotSet {
        name: String,
    },
    UnexpectedEndOfExpression,
    DivisionByZero,
    NoValueReturnedParsing,
    NotEnoughFunctionArguments,
    ForbiddenAssign {
        variable_name: String,
    },
    NotParsableAssign {
        variable_name: String,
    },
    NotParsableUnrecognized,
    NotParsableSingleAssign,
}

Define custom errors for Calculator.

Variants

NotConvertable

An input cannot be converted to CalculatorFloat

FloatSymbolicNotConvertable

Fields

val: String

Value that can not be converted

A symbolic input cannot be converted to CalculatorFloat

ComplexSymbolicNotConvertable

Fields

val: CalculatorComplex

Value that cannot be converted

A symbolic input cannot be converted to CalculatorComplex

ComplexCanNotBeConvertedToFloat

Fields

val: CalculatorComplex

Value of the CalculatorComplex that cannot be converted

A complex value cannot be converted to float because imaginary part is not zero

ParsingError

Fields

msg: &'static str

Parsing error

Parsing error when using Calculator

NotImplementedError

Fields

fct: &'static str

Function that is not implemented

Function not implemented in Calculator

FunctionNotFound

Fields

fct: String

Name of function that cannot be found

Function not found in Calculator

VariableNotSet

Fields

name: String

Name of the variable that is not set

A variable is not set

UnexpectedEndOfExpression

Parsed expression ended unexpectedly

DivisionByZero

Trying to divide by zero

NoValueReturnedParsing

A parsed value did not return a value.

NotEnoughFunctionArguments

Not enough function arguments provided in parsed expression.

ForbiddenAssign

Fields

variable_name: String

Name of the variable that is being assigned

Trying to assign variable in side-effect free parsing.

NotParsableAssign

Fields

variable_name: String

Name of the variable that is being assigned

Error raised when checking if a String-CalculatorFloat is valid and can be parsed

NotParsableUnrecognized

Error raised when checking if a String-CalculatorFloat is valid and can be parsed

NotParsableSingleAssign

Error raised when checking if a String-CalculatorFloat is valid and can be parsed

Trait Implementations

impl Debug for CalculatorError

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

Formats the value using the given formatter.

impl Display for CalculatorError

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

Formats the value using the given formatter.

impl Error for CalculatorError

fn source(&self) -> Option<&(dyn Error + 'static)>

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 CalculatorError

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

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

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

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

impl StructuralPartialEq for CalculatorError