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,
}

Define custom errors for Calculator.

Variants

NotConvertable

An input cannot be converted to CalculatorFloat

FloatSymbolicNotConvertable

A symbolic input cannot be converted to CalculatorFloat

Fields of FloatSymbolicNotConvertable

val: String

Value that can not be converted

ComplexSymbolicNotConvertable

A symbolic input cannot be converted to CalculatorComplex

Fields of ComplexSymbolicNotConvertable

val: CalculatorComplex

Value that cannot be converted

ComplexCanNotBeConvertedToFloat

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

Fields of ComplexCanNotBeConvertedToFloat

val: CalculatorComplex

Value of the CalculatorComplex that cannot be converted

ParsingError

Parsing error when using Calculator

Fields of ParsingError

msg: &'static str

Parsing error

NotImplementedError

Function not implemented in Calculator

Fields of NotImplementedError

fct: &'static str

Function that is not implemented

FunctionNotFound

Function not found in Calculator

Fields of FunctionNotFound

fct: String

Name of function that cannot be found

VariableNotSet

A variable is not set

Fields of VariableNotSet

name: String

Name of the variable that 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.

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 backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

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

impl PartialEq<CalculatorError> 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: &CalculatorError) -> bool

This method tests for !=.

impl StructuralPartialEq for CalculatorError