Enum mexprp::errors::MathError
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pub enum MathError { UndefinedVariable { name: String, }, UndefinedFunction { name: String, }, IncorrectArguments, DivideByZero, NaN, CmpError, Unimplemented { op: String, num_type: String, }, Other, }
An error that can occur while evaluating an expression
Variants
UndefinedVariable
A variable that was not defined in the context was referenced
Fields of UndefinedVariable
name: String | The name of the variable |
UndefinedFunction
A function that was not defined in the context was referenced
Fields of UndefinedFunction
name: String | The name of the function |
IncorrectArguments
A function was given arguments in an incorrect form
DivideByZero
Attempted to divide by zero
NaN
A NaN value was used in a way that is not possible
CmpError
Tried to compare a value that can't be compared (eg NaN, Infinity, etc.)
Unimplemented
Attempted an operation on a Number that wasn't implemented for that type
Fields of Unimplemented
op: String | The name of the operation that was attempted |
num_type: String | The type of number it was attempted for |
Other
Another type of Error occurred.
Trait Implementations
impl Debug for MathError
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl Fail for MathError
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fn cause(&self) -> Option<&Fail>
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Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors. Read more
fn backtrace(&self) -> Option<&Backtrace>
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Returns a reference to the Backtrace
carried by this failure, if it carries one. Read more
fn context<D>(self, context: D) -> Context<D> where
D: Display + Send + Sync + 'static,
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D: Display + Send + Sync + 'static,
Provides context for this failure. Read more
fn compat(self) -> Compat<Self>
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Wraps this failure in a compatibility wrapper that implements std::error::Error
. Read more
fn causes(&self) -> Causes
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Returns a iterator over the causes of this Fail
with itself as the first item and the root_cause
as the final item. Read more
fn root_cause(&self) -> &(Fail + 'static)
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Returns the "root cause" of this Fail
- the last value in the cause chain which does not return an underlying cause
. Read more
impl Display for MathError
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fn fmt(&self, f: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more