use super::*; /// A pointer to a null-terminated string of 16-bit Unicode characters. #[repr(transparent)] #[derive(Clone, Copy, PartialEq, Eq, Debug)] pub struct PWSTR(pub *mut u16); impl PWSTR { /// Construct a new `PWSTR` from a raw pointer. pub const fn from_raw(ptr: *mut u16) -> Self { Self(ptr) } /// Construct a null `PWSTR`. pub fn null() -> Self { Self(std::ptr::null_mut()) } /// Returns a raw pointer to the `PWSTR`. pub fn as_ptr(&self) -> *mut u16 { self.0 } /// Checks whether the `PWSTR` is null. pub fn is_null(&self) -> bool { self.0.is_null() } /// String data without the trailing 0. /// /// # Safety /// /// The `PWSTR`'s pointer needs to be valid for reads up until and including the next `\0`. pub unsafe fn as_wide(&self) -> &[u16] { let len = super::wcslen(PCWSTR::from_raw(self.0)); std::slice::from_raw_parts(self.0, len) } /// Copy the `PWSTR` into a Rust `String`. /// /// # Safety /// /// See the safety information for `PWSTR::as_wide`. pub unsafe fn to_string(&self) -> std::result::Result { String::from_utf16(self.as_wide()) } /// Copy the `PWSTR` into an `HSTRING`. /// /// # Safety /// /// See the safety information for `PWSTR::as_wide`. pub unsafe fn to_hstring(&self) -> Result { HSTRING::from_wide(self.as_wide()) } /// Allow this string to be displayed. /// /// # Safety /// /// See the safety information for `PWSTR::as_wide`. pub unsafe fn display(&self) -> impl std::fmt::Display + '_ { Decode(move || std::char::decode_utf16(self.as_wide().iter().cloned())) } } impl TypeKind for PWSTR { type TypeKind = CopyType; }