chore: checkpoint before Python removal

vendor/litemap/examples/language_names_hash_map.rs

@@ -0,0 +1,36 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+// LiteMap is intended as a small and low-memory drop-in replacement for HashMap.
+//
+// This example does not use LiteMap. The reader may compare this HashMap example to the
+// LiteMap example to showcase analogous operations between HashMap and LiteMap.
+
+#![no_main] // https://github.com/unicode-org/icu4x/issues/395
+icu_benchmark_macros::instrument!();
+
+use icu_locale_core::subtags::{language, Language};
+use std::collections::HashMap;
+
+const DATA: [(Language, &str); 11] = [
+    (language!("ar"), "Arabic"),
+    (language!("bn"), "Bangla"),
+    (language!("ccp"), "Chakma"),
+    (language!("en"), "English"),
+    (language!("es"), "Spanish"),
+    (language!("fr"), "French"),
+    (language!("ja"), "Japanese"),
+    (language!("ru"), "Russian"),
+    (language!("sr"), "Serbian"),
+    (language!("th"), "Thai"),
+    (language!("tr"), "Turkish"),
+];
+
+fn main() {
+    let map = HashMap::<Language, &str>::from_iter(DATA);
+
+    assert!(map.len() == 11);
+    assert!(map.get(&language!("th")) == Some(&"Thai"));
+    assert!(!map.contains_key(&language!("de")));
+}

vendor/litemap/examples/language_names_lite_map.rs

@@ -0,0 +1,36 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+// LiteMap is intended as a small and low-memory drop-in replacement for HashMap.
+//
+// The reader may compare this LiteMap example with the HashMap example to see analogous
+// operations between LiteMap and HashMap.
+
+#![no_main] // https://github.com/unicode-org/icu4x/issues/395
+icu_benchmark_macros::instrument!();
+
+use icu_locale_core::subtags::{language, Language};
+use litemap::LiteMap;
+
+const DATA: [(Language, &str); 11] = [
+    (language!("ar"), "Arabic"),
+    (language!("bn"), "Bangla"),
+    (language!("ccp"), "Chakma"),
+    (language!("en"), "English"),
+    (language!("es"), "Spanish"),
+    (language!("fr"), "French"),
+    (language!("ja"), "Japanese"),
+    (language!("ru"), "Russian"),
+    (language!("sr"), "Serbian"),
+    (language!("th"), "Thai"),
+    (language!("tr"), "Turkish"),
+];
+
+fn main() {
+    let map = LiteMap::<Language, &str>::from_iter(DATA);
+
+    assert!(map.len() == 11);
+    assert!(map.get(&language!("th")) == Some(&"Thai"));
+    assert!(map.get(&language!("de")).is_none());
+}

vendor/litemap/examples/litemap_bincode.rs

@@ -0,0 +1,60 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+// LiteMap is intended as a small and low-memory drop-in replacement for
+// HashMap. This example demonstrates how it works with Serde.
+
+#![no_main] // https://github.com/unicode-org/icu4x/issues/395
+icu_benchmark_macros::instrument!();
+
+use litemap::LiteMap;
+
+const DATA: [(&str, &str); 11] = [
+    ("ar", "Arabic"),
+    ("bn", "Bangla"),
+    ("ccp", "Chakma"),
+    ("en", "English"),
+    ("es", "Spanish"),
+    ("fr", "French"),
+    ("ja", "Japanese"),
+    ("ru", "Russian"),
+    ("sr", "Serbian"),
+    ("th", "Thai"),
+    ("tr", "Turkish"),
+];
+
+#[allow(dead_code)]
+const BINCODE: [u8; 278] = [
+    11, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 97, 114, 6, 0, 0, 0, 0, 0, 0, 0, 65, 114, 97,
+    98, 105, 99, 2, 0, 0, 0, 0, 0, 0, 0, 98, 110, 6, 0, 0, 0, 0, 0, 0, 0, 66, 97, 110, 103, 108,
+    97, 3, 0, 0, 0, 0, 0, 0, 0, 99, 99, 112, 6, 0, 0, 0, 0, 0, 0, 0, 67, 104, 97, 107, 109, 97, 2,
+    0, 0, 0, 0, 0, 0, 0, 101, 110, 7, 0, 0, 0, 0, 0, 0, 0, 69, 110, 103, 108, 105, 115, 104, 2, 0,
+    0, 0, 0, 0, 0, 0, 101, 115, 7, 0, 0, 0, 0, 0, 0, 0, 83, 112, 97, 110, 105, 115, 104, 2, 0, 0,
+    0, 0, 0, 0, 0, 102, 114, 6, 0, 0, 0, 0, 0, 0, 0, 70, 114, 101, 110, 99, 104, 2, 0, 0, 0, 0, 0,
+    0, 0, 106, 97, 8, 0, 0, 0, 0, 0, 0, 0, 74, 97, 112, 97, 110, 101, 115, 101, 2, 0, 0, 0, 0, 0,
+    0, 0, 114, 117, 7, 0, 0, 0, 0, 0, 0, 0, 82, 117, 115, 115, 105, 97, 110, 2, 0, 0, 0, 0, 0, 0,
+    0, 115, 114, 7, 0, 0, 0, 0, 0, 0, 0, 83, 101, 114, 98, 105, 97, 110, 2, 0, 0, 0, 0, 0, 0, 0,
+    116, 104, 4, 0, 0, 0, 0, 0, 0, 0, 84, 104, 97, 105, 2, 0, 0, 0, 0, 0, 0, 0, 116, 114, 7, 0, 0,
+    0, 0, 0, 0, 0, 84, 117, 114, 107, 105, 115, 104,
+];
+
+/// Run this function to print new data to the console.
+#[allow(dead_code)]
+fn generate() {
+    let mut map = LiteMap::new_vec();
+    for (lang, name) in DATA.iter() {
+        map.try_append(lang, name).ok_or(()).unwrap_err();
+    }
+
+    let buf = bincode::serialize(&map).unwrap();
+    println!("{buf:?}");
+}
+
+fn main() {
+    // Uncomment the following line to re-generate the binary data.
+    // generate();
+
+    let map: LiteMap<&str, &str> = bincode::deserialize(&BINCODE).unwrap();
+    assert_eq!(map.get("tr"), Some(&"Turkish"));
+}

vendor/litemap/examples/litemap_postcard.rs

@@ -0,0 +1,54 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+// LiteMap is intended as a small and low-memory drop-in replacement for
+// HashMap. This example demonstrates how it works with Serde.
+
+#![no_main] // https://github.com/unicode-org/icu4x/issues/395
+icu_benchmark_macros::instrument!();
+
+use litemap::LiteMap;
+
+const DATA: [(&str, &str); 11] = [
+    ("ar", "Arabic"),
+    ("bn", "Bangla"),
+    ("ccp", "Chakma"),
+    ("en", "English"),
+    ("es", "Spanish"),
+    ("fr", "French"),
+    ("ja", "Japanese"),
+    ("ru", "Russian"),
+    ("sr", "Serbian"),
+    ("th", "Thai"),
+    ("tr", "Turkish"),
+];
+
+const POSTCARD: [u8; 117] = [
+    11, 2, 97, 114, 6, 65, 114, 97, 98, 105, 99, 2, 98, 110, 6, 66, 97, 110, 103, 108, 97, 3, 99,
+    99, 112, 6, 67, 104, 97, 107, 109, 97, 2, 101, 110, 7, 69, 110, 103, 108, 105, 115, 104, 2,
+    101, 115, 7, 83, 112, 97, 110, 105, 115, 104, 2, 102, 114, 6, 70, 114, 101, 110, 99, 104, 2,
+    106, 97, 8, 74, 97, 112, 97, 110, 101, 115, 101, 2, 114, 117, 7, 82, 117, 115, 115, 105, 97,
+    110, 2, 115, 114, 7, 83, 101, 114, 98, 105, 97, 110, 2, 116, 104, 4, 84, 104, 97, 105, 2, 116,
+    114, 7, 84, 117, 114, 107, 105, 115, 104,
+];
+
+/// Run this function to print new data to the console.
+#[allow(dead_code)]
+fn generate() {
+    let mut map = LiteMap::new_vec();
+    for (lang, name) in DATA.iter() {
+        map.try_append(lang, name).ok_or(()).unwrap_err();
+    }
+
+    let buf = postcard::to_stdvec(&map).unwrap();
+    println!("{buf:?}");
+}
+
+fn main() {
+    // Uncomment the following line to re-generate the binary data.
+    // generate();
+
+    let map: LiteMap<&str, &str> = postcard::from_bytes(&POSTCARD).unwrap();
+    assert_eq!(map.get("tr"), Some(&"Turkish"));
+}