nucomcore 0.1.1

Nucom, cross-platform Component Object Model implementation
Documentation 
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use std::fmt::{Debug, Display, Formatter};
use uuid::Uuid;

#[repr(transparent)]
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct HRESULT {
    code: i32,
}

impl HRESULT {
    pub const fn from_parts(is_error: bool, customer: bool, facility: u16, code: u16) -> HRESULT {
        let is_error = if is_error { 1 << 31 } else { 0 };
        let customer = if customer { 1 << 29 } else { 0 };
        HRESULT {
            code: is_error | customer | facility as i32 & 0x7FF << 16 | code as i32,
        }
    }

    pub fn is_success(&self) -> bool {
        self.code >= 0
    }

    pub fn is_error(&self) -> bool {
        self.code < 0
    }
}

#[repr(C)]
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct GUID(pub u32, pub u16, pub u16, pub [u8; 8]);

impl GUID {
    pub const ZERO: GUID = GUID(0, 0, 0, [0, 0, 0, 0, 0, 0, 0, 0]);
}

impl Default for GUID {
    fn default() -> Self {
        GUID::ZERO
    }
}

impl Display for GUID {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        Display::fmt(&Uuid::from(*self), f)
    }
}

impl From<GUID> for Uuid {
    fn from(guid: GUID) -> Self {
        Uuid::from_fields(guid.0, guid.1, guid.2, &guid.3)
    }
}

impl From<Uuid> for GUID {
    fn from(uuid: Uuid) -> Self {
        let (u0, u1, u2, u3) = uuid.as_fields();
        GUID(u0, u1, u2, *u3)
    }
}

pub type IID = GUID;
pub type CLSID = GUID;