Error

curve_casper_erc20

Enum Error 

Source 
pub enum Error {
    InvalidContext,
    InsufficientBalance,
    InsufficientAllowance,
    Overflow,
    User(u16),
}
Expand description

Errors which can be returned by the library.

When an Error is returned from a smart contract, it is converted to an ApiError::User.

Where a smart contract consuming this library needs to define further error variants, it can return those via the Error::User variant or equivalently via the ApiError::User variant.

Such a user error should be in the range [0..(u16::MAX - 4)] (i.e. [0, 65532]) to avoid conflicting with the other Error variants.

Variants§

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InvalidContext

ERC20 contract called from within an invalid context.

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InsufficientBalance

Spender does not have enough balance.

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InsufficientAllowance

Spender does not have enough allowance approved.

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Overflow

Operation would cause an integer overflow.

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User(u16)

User error.

Trait Implementations§

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impl From<Error> for ApiError

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fn from(error: Error) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl Freeze for Error

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impl RefUnwindSafe for Error

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impl Send for Error

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impl Sync for Error

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impl Unpin for Error

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impl UnwindSafe for Error

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Conv for T

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fn conv<T>(self) -> T
where Self: Into<T>,

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impl<T> FmtForward for T

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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

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impl<T> PipeAsRef for T

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impl<T> PipeBorrow for T

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where Self: BorrowMut<T>, T: 'a, R: 'a,

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where Self: Deref, R: 'a,

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where Self: DerefMut, R: 'a,

Pipes a mutable dereference into a function that cannot normally be called in suffix position. Read more
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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

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fn pipe_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
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impl<T> Same for T

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type Output = T

Should always be Self
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fn tap<F, R>(self, func: F) -> Self
where F: FnOnce(&Self) -> R,

Provides immutable access for inspection. Read more
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fn tap_dbg<F, R>(self, func: F) -> Self
where F: FnOnce(&Self) -> R,

Calls tap in debug builds, and does nothing in release builds.
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fn tap_mut<F, R>(self, func: F) -> Self
where F: FnOnce(&mut Self) -> R,

Provides mutable access for modification. Read more
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fn tap_mut_dbg<F, R>(self, func: F) -> Self
where F: FnOnce(&mut Self) -> R,

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impl<T, U> TapAsRef<U> for T
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fn tap_ref<F, R>(self, func: F) -> Self
where Self: AsRef<T>, F: FnOnce(&T) -> R,

Provides immutable access to the reference for inspection.
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where Self: AsRef<T>, F: FnOnce(&T) -> R,

Calls tap_ref in debug builds, and does nothing in release builds.
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fn tap_ref_mut<F, R>(self, func: F) -> Self
where Self: AsMut<T>, F: FnOnce(&mut T) -> R,

Provides mutable access to the reference for modification.
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where Self: Borrow<T>, F: FnOnce(&T) -> R,

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where Self: Deref, F: FnOnce(&Self::Target) -> R,

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fn tap_deref_mut<F, R>(self, func: F) -> Self
where Self: DerefMut, F: FnOnce(&mut Self::Target) -> R,

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where Self: DerefMut, F: FnOnce(&mut Self::Target) -> R,

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type Error = Infallible

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