[−][src]Enum amplify_derive_helpers::Error
Errors representing inconsistency in proc macro attribute structure
Variants
Parse(String)
Names of two merged attributes must match each other
MultipleSingularValues(Ident)
Singular argument (of form #[attr = ...]
) has multiple occurrences
each assigned value. This is meaningless.
MultipleLiteralValues(Ident)
Multiple literal non-string values are given for a parametrized
attribute in form of #[attr(literal1, literal2)]
. This is
meaningless.
SingularAttrRequired(Ident)
Attribute must be in a singular form (#[attr]
or #[attr = ...]
)
ParametrizedAttrRequired(Ident)
Attribute must be in a parametrized form (#[attr(...)]
)
Attribute argument must be a path identifier like #[attr(std::io)]
or #[attr = std::io]
Attribute or attribute argument must has a name
Attribute or attribute argument name (in form of #[attr(arg = ...)]
)
must be an identifier (like arg
) and not a path (like std::io
)
ArgNameMustBeUnique(Ident)
The same argument name is used multiple times within parametrized
attribute (like in #[attr(name1 = value1, name1 = value2)]
)
ArgValueRequired(Ident)
Attribute or attribute argument must has a value:
#[attr(arg = value)]
Parametrized attribute argument must have a literal value (string,
integer etc): #[attr(arg = "value")]
or #[arg = 4]
Parametrized attribute argument must be a valid type name:
#[attr(arg = u8)]
or #[arg = String]
ParametrizedAttrHasNoValue(Ident)
Parametrized attribute (in form of #[attr(...)]
) does not
have a single value
NamedArgRequired(String)
Attribute named argument must be present
NestedListsNotSupported(Ident)
Lists nested within attribute arguments, like #[attr(arg(...))]
are not supported
Trait Implementations
impl Clone for Error
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impl Debug for Error
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impl Display for Error
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impl Eq for Error
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impl Error for Error
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pub fn source(&self) -> Option<&(dyn Error + 'static)>
1.30.0[src]
pub fn backtrace(&self) -> Option<&Backtrace>
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pub fn description(&self) -> &str
1.0.0[src]
pub fn cause(&self) -> Option<&dyn Error>
1.0.0[src]
impl From<Error> for Error
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impl Hash for Error
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fn hash<__H: Hasher>(&self, state: &mut __H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl PartialEq<Error> for Error
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impl StructuralEq for Error
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impl StructuralPartialEq for Error
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Auto Trait Implementations
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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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,