Enum oaidl::FromVariantError

pub enum FromVariantError {
    VariantPtrNull,
}

Encapsulates the ways converting from a VARIANT can fail.

Variants

VariantPtrNull

VARIANT pointer during conversion was null

Trait Implementations

impl Clone for FromVariantError

fn clone(&self) -> FromVariantError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FromVariantError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for FromVariantError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Fail for FromVariantError

fn name(&self) -> Option<&str>

Returns the “name” of the error.

fn cause(&self) -> Option<&dyn Fail>

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors.

fn backtrace(&self) -> Option<&Backtrace>

Returns a reference to the Backtrace carried by this failure, if it carries one.

fn context<D>(self, context: D) -> Context<D>where D: Display + Send + Sync + 'static, Self: Sized,

Provides context for this failure.

fn compat(self) -> Compat<Self>where Self: Sized,

Wraps this failure in a compatibility wrapper that implements std::error::Error.

impl From<FromVariantError> for ElementError

fn from(fve: FromVariantError) -> Self

Uses From impls on [FromSafeArrElemError] and [ElementError`] to convert the error.

impl From<FromVariantError> for FromSafeArrElemError

fn from(fve: FromVariantError) -> FromSafeArrElemError

Boxes a FromVariantError into a FromSafeArrElemError which means the conversion is free.

impl From<FromVariantError> for FromSafeArrayError

fn from(fve: FromVariantError) -> Self

Boxes a FromVariantError into a FromSafeArrElemError which means the conversion is free.

impl From<FromVariantError> for SafeArrayError

fn from(fve: FromVariantError) -> Self

Uses From impls on [FromSafeArrayError] and [SafeArrayError`] to convert the error.

impl<'c> TryConvert<&'c CY, FromVariantError> for Currency

fn try_convert(val: &'c CY) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c DECIMAL, FromVariantError> for DecWrapper

fn try_convert(val: &'c DECIMAL) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c bool, FromVariantError> for VariantBool

fn try_convert(val: &'c bool) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c f64, FromVariantError> for Date

fn try_convert(val: &'c f64) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c i16, FromVariantError> for VariantBool

fn try_convert(val: &'c VARIANT_BOOL) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c i32, FromVariantError> for Int

fn try_convert(val: &'c i32) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c i32, FromVariantError> for SCode

fn try_convert(val: &'c i32) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c mut CY, FromVariantError> for Currency

fn try_convert(val: &'c mut CY) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c mut DECIMAL, FromVariantError> for DecWrapper

fn try_convert(val: &'c mut DECIMAL) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c mut bool, FromVariantError> for VariantBool

fn try_convert(val: &'c mut bool) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c mut f64, FromVariantError> for Date

fn try_convert(val: &'c mut f64) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c mut i16, FromVariantError> for VariantBool

fn try_convert(val: &'c mut VARIANT_BOOL) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c mut i32, FromVariantError> for Int

fn try_convert(val: &'c mut i32) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c mut i32, FromVariantError> for SCode

fn try_convert(val: &'c mut i32) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c mut u32, FromVariantError> for UInt

fn try_convert(val: &'c mut u32) -> Result<Self, FromVariantError>

Does not return any errors.

impl<'c> TryConvert<&'c u32, FromVariantError> for UInt

fn try_convert(val: &'c u32) -> Result<Self, FromVariantError>

Does not return any errors.

impl TryConvert<(), FromVariantError> for VtEmpty

fn try_convert(_e: ()) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<(), FromVariantError> for VtNull

fn try_convert(_e: ()) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut CY, FromVariantError> for Box<Currency>

fn try_convert(inner: *mut CY) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut f32, FromVariantError> for Box<f32>

fn try_convert(ptr: *mut f32) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut f64, FromVariantError> for Box<Date>

fn try_convert(inner: *mut f64) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut f64, FromVariantError> for Box<f64>

fn try_convert(ptr: *mut f64) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut i16, FromVariantError> for Box<VariantBool>

fn try_convert(inner: *mut VARIANT_BOOL) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut i16, FromVariantError> for Box<i16>

fn try_convert(ptr: *mut i16) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut i32, FromVariantError> for Box<Int>

fn try_convert(inner: *mut i32) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut i32, FromVariantError> for Box<SCode>

fn try_convert(inner: *mut i32) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut i32, FromVariantError> for Box<i32>

fn try_convert(ptr: *mut i32) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut i64, FromVariantError> for Box<i64>

fn try_convert(ptr: *mut i64) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut i8, FromVariantError> for Box<i8>

fn try_convert(ptr: *mut i8) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut u16, FromVariantError> for Box<u16>

fn try_convert(ptr: *mut u16) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut u16, FromVariantError> for U16String

fn try_convert(p: BSTR) -> Result<Self, FromVariantError>

Converts the BSTR to a U16String.

Panics

Will panic if BSTR is null.

impl TryConvert<*mut u32, FromVariantError> for Box<UInt>

fn try_convert(inner: *mut u32) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut u32, FromVariantError> for Box<u32>

fn try_convert(ptr: *mut u32) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut u64, FromVariantError> for Box<u64>

fn try_convert(ptr: *mut u64) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<*mut u8, FromVariantError> for Box<u8>

fn try_convert(ptr: *mut u8) -> Result<Self, FromVariantError>

Utility method which can fail.

impl TryConvert<CY, FromVariantError> for Currency

fn try_convert(val: CY) -> Result<Self, FromVariantError>

Does not return any errors.

impl TryConvert<DECIMAL, FromVariantError> for DecWrapper

fn try_convert(val: DECIMAL) -> Result<Self, FromVariantError>

Does not return any errors.

impl<D, T> TryConvert<Ptr<VARIANT>, FromVariantError> for Variant<D, T>where D: VariantExt<T>,

fn try_convert(ptr: Ptr<VARIANT>) -> Result<Self, FromVariantError>

Converts a Ptr<VARIANT> to a Variant<D, T> where D: VariantExt<T>

impl TryConvert<bool, FromVariantError> for VariantBool

fn try_convert(val: bool) -> Result<Self, FromVariantError>

Does not return any errors.

impl TryConvert<f64, FromVariantError> for Date

fn try_convert(val: f64) -> Result<Self, FromVariantError>

Does not return any errors.

impl TryConvert<i16, FromVariantError> for VariantBool

fn try_convert(val: VARIANT_BOOL) -> Result<Self, FromVariantError>

Does not return any errors.

impl TryConvert<i32, FromVariantError> for Int

fn try_convert(val: i32) -> Result<Self, FromVariantError>

Does not return any errors.

impl TryConvert<i32, FromVariantError> for SCode

fn try_convert(val: i32) -> Result<Self, FromVariantError>

Does not return any errors.

impl TryConvert<u32, FromVariantError> for UInt

fn try_convert(val: u32) -> Result<Self, FromVariantError>

Does not return any errors.

impl Copy for FromVariantError