Enum polytype::UnificationError
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pub enum UnificationError { Occurs(u32), Failure(Type, Type), }
Variants
Occurs(u32)
Occurs
is the error when the same type variable occurs in both types in a circular way.
The number of the circular type variable is supplied.
Failure(Type, Type)
Failure
happens when symbols or type variants don't match.
Trait Implementations
impl Debug for UnificationError
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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 Clone for UnificationError
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fn clone(&self) -> UnificationError
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl PartialEq for UnificationError
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fn eq(&self, __arg_0: &UnificationError) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &UnificationError) -> bool
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This method tests for !=
.
impl Display for UnificationError
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter. Read more