icu_properties 2.3.0: icu_properties::CodePointMapData

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# icu_properties 2.3.0 CodePointMapData Contracts

## What `search_known_solution` answered
`search_known_solution` returned NO_SAFE_MATCH for `icu_properties::CodePointMapData` in `pkg:cargo/icu_properties@2.3.0`.

## What a model would have written instead
A model would often assume `CodePointMapData` is constructed directly via `CodePointMapData::load()` or `CodePointMapData::new()` returning an owned `CodePointMapData<T>`, or that it behaves like a standard hash/btree map keyed by `char`.

## How the wrong version fails
In `icu_properties` 2.x, `CodePointMapData::<T>::new()` is a const fn returning `CodePointMapDataBorrowed<'static, T>` rather than `CodePointMapData<T>`, leveraging zero-cost compiled data singletons (`T::SINGLETON`). Querying is performed on the borrowed wrapper using `.get(char)` or `.get32(u32)`. To obtain an owned `CodePointMapData<T>`, one calls `.static_to_owned()`, and queries against the owned structure require `.as_borrowed()`. Range iteration is performed via `.iter_ranges()` and `.iter_ranges_for_value()`, and conversion to underlying `CodePointTrie` structures is accessed through `.to_code_point_trie()` and `.as_code_point_trie()`.

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify icu_properties::CodePointMapData in pkg:cargo/icu_properties@2.3.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/icu_properties@2.3.0
Demonstrate these symbols/APIs:
  - icu_properties::CodePointMapData

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:895a9c2ee07f877d6c7541ee17dc427ab14c91879e3da3d048f4775ff74ac781","contract":["CodePointMapData::new() constructs borrowed map data with compiled data","CodePointMapDataBorrowed queries category via get and get32","static_to_owned converts borrowed map data to owned CodePointMapData","iter_ranges iterates over consecutive code point ranges sharing the same value","iter_ranges_for_value yields ranges for a specific property value","iter_ranges_for_group yields ranges for a GeneralCategoryGroup","to_code_point_trie and as_code_point_trie convert CodePointMapData to CodePointTrie"],"goal":"verify icu_properties::CodePointMapData in pkg:cargo/icu_properties@2.3.0","kind":"HOW","packages":["pkg:cargo/icu_properties@2.3.0"],"schemaVersion":1,"symbols":["icu_properties::CodePointMapData"]},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","distro":"alpine","ecosystem":"cargo","libc":"musl","os":"linux","packageManager":"cargo","schemaVersion":1},"license":"MIT-0","packages":["pkg:cargo/icu_properties@2.3.0"],"schemaVersion":1,"subject":"pkg:cargo/icu_properties@2.3.0","symbols":["icu_properties::CodePointMapData"],"verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify icu_properties::CodePointMapData in pkg:cargo/icu_properties@2.3.0",
  "kind": "HOW",
  "packages": [
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  "symbols": [
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//! Clean-room verification sample for icu_properties CodePointMapData.

pub use icu_properties::CodePointMapData;

use icu_properties::props::{GeneralCategory, GeneralCategoryGroup};
use icu_properties::CodePointMapData;

fn main() {
    // 1. CodePointMapData::new() constructs borrowed map data with compiled data
    let gc_borrowed = CodePointMapData::<GeneralCategory>::new();

    // 2. CodePointMapDataBorrowed queries category via get and get32
    assert_eq!(gc_borrowed.get('A'), GeneralCategory::UppercaseLetter);
    assert_eq!(gc_borrowed.get('a'), GeneralCategory::LowercaseLetter);
    assert_eq!(gc_borrowed.get('0'), GeneralCategory::DecimalNumber);
    assert_eq!(gc_borrowed.get32(0x0041), GeneralCategory::UppercaseLetter);

    // 3. static_to_owned converts borrowed map data to owned CodePointMapData
    let gc_owned = gc_borrowed.static_to_owned();
    let gc_as_borrowed = gc_owned.as_borrowed();
    assert_eq!(gc_as_borrowed.get(' '), GeneralCategory::SpaceSeparator);

    // 4. iter_ranges iterates over consecutive code point ranges sharing the same value
    let mut ranges = gc_borrowed.iter_ranges();
    let first = ranges.next().expect("first range exists");
    assert_eq!(first.range, 0..=31);
    assert_eq!(first.value, GeneralCategory::Control);

    // 5. iter_ranges_for_value yields ranges for a specific property value
    let mut uppercase_ranges = gc_borrowed.iter_ranges_for_value(GeneralCategory::UppercaseLetter);
    assert_eq!(uppercase_ranges.next(), Some('A' as u32..='Z' as u32));

    // 6. iter_ranges_for_group yields ranges for a GeneralCategoryGroup
    let mut letter_ranges = gc_borrowed.iter_ranges_for_group(GeneralCategoryGroup::Letter);
    assert_eq!(letter_ranges.next(), Some('A' as u32..='Z' as u32));
    assert_eq!(letter_ranges.next(), Some('a' as u32..='z' as u32));

    // 7. to_code_point_trie and as_code_point_trie convert CodePointMapData to CodePointTrie
    let trie = gc_owned.to_code_point_trie();
    assert_eq!(trie.get32('A' as u32), GeneralCategory::UppercaseLetter);
    assert!(gc_owned.as_code_point_trie().is_some());

    println!("All icu_properties::CodePointMapData contract assertions passed successfully.");
}