Enum mage::ExpressionError
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pub enum ExpressionError { UnsupportedOperator(String), CanNotExec(Operator), StartWithNonValueOperator, UnpairedBrackets, DuplicateValueNode, DuplicateOperatorNode, CommaNotWithFunction, BracketNotWithFunction, FunctionNotExists(String), ExpectedBoolean(Value), ExpectedIdentifier, ExpectedArray, ExpectedObject, ExpectedNumber, NoFinalNode, ArgumentsGreater(usize), ArgumentsLess(usize), UnsupportedTypes(String, String), InvalidRange(String), CanNotAddChild, Custom(String), }
Expression parsing error
Variants
UnsupportedOperator(String)
Unsupported operator yet.
CanNotExec(Operator)
This operator does not support execution.
StartWithNonValueOperator
Your expression may start with non-value operator like ( + * )
UnpairedBrackets
Unpaired brackets, left brackets count does not equal right brackets count
DuplicateValueNode
Duplicate values node, you may have (2 3) but there is no operators between them
DuplicateOperatorNode
Duplicate operators node, you may have (+ +) but there is no values between them
CommaNotWithFunction
You have a comma(,) , but there is no function in front of it.
BracketNotWithFunction
You have empty brackets () , but there is no function in front of it.
FunctionNotExists(String)
Function not exists.
ExpectedBoolean(Value)
Expected a boolean but the given value isn't.
ExpectedIdentifier
Expected ident.
ExpectedArray
Expected array.
ExpectedObject
Expected object.
ExpectedNumber
Expect number.
NoFinalNode
Failed to parse, no final expression.
ArgumentsGreater(usize)
The number of arguments is greater than the maximum limit.
ArgumentsLess(usize)
The number of arguments is less than the minimum limit.
UnsupportedTypes(String, String)
This two value types are different or do not support mathematical calculations.
InvalidRange(String)
Invalid range expression like 1..2..3
CanNotAddChild
Can not add child node.
Custom(String)
Custom error.
Trait Implementations
impl Error for Error
fn description(&self) -> &str
A short description of the error. Read more
fn cause(&self) -> Option<&Error>
The lower-level cause of this error, if any. Read more
impl PartialEq<Error> for Error
impl Display for Error
fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>
Formats the value using the given formatter.