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Code Issues Releases Wiki Activity

fn arg

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Hatter Jiang
2019-07-21 22:57:23 +08:00
parent 369bd6ffa8
commit b9fc73a1e6
1 changed files with 4 additions and 3 deletions
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7
src/main.rs
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@@ -24,11 +24,11 @@ fn check_path(path: &Path) {
//println!("-------------- {:?} {}", path, path.is_dir()); //println!("-------------- {:?} {}", path, path.is_dir());
} }
fn list_dir(dir: &Path, fnc: fn(&Path) -> ()) -> XResult<()> { fn list_dir<F>(dir: &Path, fnc: &F) -> XResult<()> where F: Fn(&Path) -> () {
list_dir_with_depth_check(&mut 0u32, dir, fnc) list_dir_with_depth_check(&mut 0u32, dir, fnc)
} }
fn list_dir_with_depth_check(depth: &mut u32, dir: &Path, fnc: fn(&Path) -> ()) -> XResult<()> { fn list_dir_with_depth_check<F>(depth: &mut u32, dir: &Path, fnc: &F) -> XResult<()> where F: Fn(&Path) -> () {
if *depth > 100u32 { if *depth > 100u32 {
// TODO error: return Err(Box::new("depth")); // TODO error: return Err(Box::new("depth"));
} }
@@ -76,7 +76,8 @@ fn main() {
println!("{:?}", get_absolute_path("~/.jssp")); println!("{:?}", get_absolute_path("~/.jssp"));
println!("{:?}", get_absolute_path("~/.jsspx")); println!("{:?}", get_absolute_path("~/.jsspx"));
list_dir(get_absolute_path("~").unwrap().as_path(), check_path).ok(); //list_dir(get_absolute_path("~").unwrap().as_path(), &check_path).ok();
list_dir(get_absolute_path("~").unwrap().as_path(), &|_| {}).ok();
println!("Hello, world!"); println!("Hello, world!");
} }