Trait windows_helpers::core::ResultExt

pub trait ResultExt<T> {
    // Required methods
    fn from_win32() -> Result<()>;
    fn err_from_win32() -> Result<T>;
    fn from_checked_or_win32<F>(t: T, check: F) -> Result<T>
       where F: FnOnce(&T) -> bool;
    fn from_checked_or_e_fail<F>(t: T, check: F) -> Result<T>
       where F: FnOnce(&T) -> bool;
}

Required Methods

fn from_win32() -> Result<()>

Returns Ok(()), or Err, based on [windows::core::Error::from_win32()].

fn err_from_win32() -> Result<T>

Returns Err with [windows::core::Error::from_win32()].

fn from_checked_or_win32<F>(t: T, check: F) -> Result<T>

where F: FnOnce(&T) -> bool,

Passes a T through to an Ok value, if the check is successful, or otherwise returns Err with [windows::core::Error::from_win32()].

Can be used transitionally in new cases, until this crate might offer a more suitable solution.

fn from_checked_or_e_fail<F>(t: T, check: F) -> Result<T>

where F: FnOnce(&T) -> bool,

Passes a T through to an Ok value, if the check is successful, or otherwise returns Err with HRESULT E_FAIL.

To be used with functions that don’t offer an error code via GetLastError().

Can be used transitionally in new cases, until this crate might offer a more suitable solution.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<T> ResultExt<T> for Result<T>

fn from_win32() -> Result<()>

fn err_from_win32() -> Result<T>

fn from_checked_or_win32<F>(t: T, check: F) -> Result<T>

where F: FnOnce(&T) -> bool,

fn from_checked_or_e_fail<F>(t: T, check: F) -> Result<T>

where F: FnOnce(&T) -> bool,

Implementors