String

🤔 refer to Will Crichton

#![allow(unused)]
fn main() {
let s1 = String::from("Hello ");
}

🤔 refer to Swatinem

Name	Size of `<T>`	Size of `<Option<T>>`	Clone	SSO	Mutable
String	24	24	O(n)	-	yes
Arc	16	16	O(1)	-	no
arcstr	8	8	O(1)	-	no
smol_str	24	24	O(1)	23	no
kstring (arc)	24	32	O(1)	15 / 22	no
flexstr	24	32	O(1)	22	no
compact_str	24	24	O(n)	24	yes
smartstring	24	32	O(n)	23	yes

🤔 refer to Matt Davies

graph TD
    subgraph "🦀 Strings"
        &Path --to_path_buf--> PathBuf
        PathBuf --into_os_string--> OsString
        PathBuf --as_path--> &Path
        &Path --as_os_str--> &OsStr
        OsString --into_string?--> String
        OsString --as_os_str--> &OsStr
        &OsStr --to_os_string--> OsString
        &OsStr --to_str?--> &str
        String --as_str--> &str
        CString --as_c_str--> &CStr
        CString --into_string?--> String
        &CStr --to_str?-->&str
        String --as_bytes--> u8["&[u8]"]
        &str --as_bytes--> u8["&[u8]"]
        &CStr --to_bytes--> u8["&[u8]"]
        CString --as_bytes--> u8["&[u8]"]
        &str --as_ptr--> cu8["*const u8"]
    end

Gist of Rust

String