Enum mentat_query_algebrizer::BindingError
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pub enum BindingError { NoBoundVariable, UnexpectedBinding, RepeatedBoundVariable, ExpectedBindRel, ExpectedBindRelOrBindColl, InvalidNumberOfBindings { number: usize, expected: usize, }, }
Variants
NoBoundVariable
UnexpectedBinding
RepeatedBoundVariable
ExpectedBindRel
Expected [[?x ?y]]
but got some other type of binding. Mentat is deliberately more strict
than Datomic: we won't try to make sense of non-obvious (and potentially erroneous) bindings.
ExpectedBindRelOrBindColl
Expected [[?x ?y]]
or [?x ...]
but got some other type of binding. Mentat is
deliberately more strict than Datomic: we won't try to make sense of non-obvious (and
potentially erroneous) bindings.
InvalidNumberOfBindings
Expected [?x1 … ?xN]
or [[?x1 … ?xN]]
but got some other number of bindings. Mentat is
deliberately more strict than Datomic: we prefer placeholders to omission.
Fields of InvalidNumberOfBindings
number: usize | |
expected: usize |
Trait Implementations
impl Display for BindingError
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impl Display for BindingError
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Clone for BindingError
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impl Clone for BindingError
fn clone(&self) -> BindingError
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fn clone(&self) -> BindingError
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl Debug for BindingError
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impl Debug for BindingError
fn fmt(&self, __arg_0: &mut Formatter) -> Result
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Eq for BindingError
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impl Eq for BindingError
impl PartialEq for BindingError
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impl PartialEq for BindingError
fn eq(&self, __arg_0: &BindingError) -> bool
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fn eq(&self, __arg_0: &BindingError) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &BindingError) -> bool
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fn ne(&self, __arg_0: &BindingError) -> bool
This method tests for !=
.
impl Fail for BindingError
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impl Fail for BindingError
fn cause(&self) -> Option<&Fail>
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fn cause(&self) -> Option<&Fail>
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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fn backtrace(&self) -> Option<&Backtrace>
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,
fn context<D>(self, context: D) -> Context<D> where
D: Display + Send + Sync + 'static,
Provides context for this failure. Read more
fn compat(self) -> Compat<Self>
fn compat(self) -> Compat<Self>
Wraps this failure in a compatibility wrapper that implements std::error::Error
. Read more
fn causes(&self) -> Causes
fn causes(&self) -> Causes
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)
fn root_cause(&self) -> &(Fail + 'static)
Returns the "root cause" of this Fail
- the last value in the cause chain which does not return an underlying cause
. Read more
Auto Trait Implementations
impl Send for BindingError
impl Send for BindingError
impl Sync for BindingError
impl Sync for BindingError