vendor/litemap/benches/bin/litemap_postcard.rs

   1 // This file is part of ICU4X. For terms of use, please see the file
   2 // called LICENSE at the top level of the ICU4X source tree
   3 // (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
   4
   5 // LiteMap is intended as a small and low-memory drop-in replacement for
   6 // HashMap. This example demonstrates how it works with Serde.
   7
   8 #![no_main] // https://github.com/unicode-org/icu4x/issues/395
   9
  10 icu_benchmark_macros::static_setup!();
  11
  12 use litemap::LiteMap;
  13
  14 const DATA: [(&str, &str); 11] = [
  15     ("ar", "Arabic"),
  16     ("bn", "Bangla"),
  17     ("ccp", "Chakma"),
  18     ("en", "English"),
  19     ("es", "Spanish"),
  20     ("fr", "French"),
  21     ("ja", "Japanese"),
  22     ("ru", "Russian"),
  23     ("sr", "Serbian"),
  24     ("th", "Thai"),
  25     ("tr", "Turkish"),
  26 ];
  27
  28 const POSTCARD: [u8; 117] = [
  29     11, 2, 97, 114, 6, 65, 114, 97, 98, 105, 99, 2, 98, 110, 6, 66, 97, 110, 103, 108, 97, 3, 99,
  30     99, 112, 6, 67, 104, 97, 107, 109, 97, 2, 101, 110, 7, 69, 110, 103, 108, 105, 115, 104, 2,
  31     101, 115, 7, 83, 112, 97, 110, 105, 115, 104, 2, 102, 114, 6, 70, 114, 101, 110, 99, 104, 2,
  32     106, 97, 8, 74, 97, 112, 97, 110, 101, 115, 101, 2, 114, 117, 7, 82, 117, 115, 115, 105, 97,
  33     110, 2, 115, 114, 7, 83, 101, 114, 98, 105, 97, 110, 2, 116, 104, 4, 84, 104, 97, 105, 2, 116,
  34     114, 7, 84, 117, 114, 107, 105, 115, 104,
  35 ];
  36
  37 /// Run this function to print new data to the console.
  38 #[allow(dead_code)]
  39 fn generate() {
  40     let mut map = LiteMap::new_vec();
  41     for (lang, name) in DATA.iter() {
  42         map.try_append(lang, name).ok_or(()).unwrap_err();
  43     }
  44
  45     let buf = postcard::to_stdvec(&map).unwrap();
  46     println!("{buf:?}");
  47 }
  48
  49 #[no_mangle]
  50 fn main(_argc: isize, _argv: *const *const u8) -> isize {
  51     icu_benchmark_macros::main_setup!();
  52
  53     // Uncomment the following line to re-generate the binary data.
  54     // generate();
  55
  56     let map: LiteMap<&str, &str> = postcard::from_bytes(&POSTCARD).unwrap();
  57     assert_eq!(map.get("tr"), Some(&"Turkish"));
  58
  59     0
  60 }