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// #![cfg_attr(feature = "nightly", feature(asm,global_asm, asm_const))]

use log::{debug, error, trace, warn};

pub struct Injector<'a> {
    pub dll: &'a str,
    pub pid: u32,
}

pub(crate) type Result<T> = std::result::Result<T, error::Error>;

pub mod error;
mod hof;
mod platforms;

impl<'a> Injector<'a> {
    pub fn new(dll: &'a str, pid: u32) -> Self {
        Injector { dll, pid }
    }
    pub fn set_dll(&mut self, dll: &'a str) {
        self.dll = dll;
    }
    pub fn set_pid(&mut self, pid: u32) {
        self.pid = pid;
    }
}

impl<'a> Default for Injector<'a> {
    fn default() -> Self {
        Self::new("", 0)
    }
}
///This takes a string, and cuts off, everything before the last `/`.
/// The intention is, that this will truncate any rust(/Linux?) path (since rust uses `/`), to it's filename, without having to actually look the file up.
pub fn strip_rust_path(str: &str) -> &str {
    let mut str_no_path = str;

    if let Some(n) = str.rfind('/') {
        //I do n+1 here, since, the rfind will actually keep the last /.
        //This gets rid of the /
        str_no_path = str.get((n + 1)..).unwrap();
    }
    debug!("str='{}' and truncated='{}'", str, str_no_path);
    str_no_path
}
///This takes a string, and cuts off, everything before the last `\`.
/// The intention is, that this will truncate any windows path (since windows uses `\`), to it's filename, without having to actually look the file up.
pub fn strip_win_path(str: &str) -> &str {
    let mut str_no_path = str;

    if let Some(n) = str.rfind('\\') {
        //I do n+1 here, since, the rfind will actually keep the last /.
        //This gets rid of the /
        str_no_path = str.get((n + 1)..).unwrap();
    }
    trace!("str='{}' and truncated='{}'", str, str_no_path);
    str_no_path
}

///This truncates all 0 from the end of a Vec
///This will keep other 0 entries in the Vec perfectly intact.
///This has a worst case performance of o(n).
//todo: improve performance
pub fn trim_wide_str(mut v: Vec<u16>) -> Vec<u16> {
    while v.last().map(|x| *x) == Some(0) {
        v.pop();
    }
    return v;
}