mlua-lshape 0.1.0

# mlua-lshape

[mlua](https://crates.io/crates/mlua) wrapper for
[lshape](https://github.com/ynishi/lshape) — Pure Lua Schema-as-Data
validator + LuaCATS codegen. The `lshape/*.lua` sources are vendored
into this crate (under `lua/lshape/`) and embedded via `include_str!`
at compile time.

## Quick start

```rust
use mlua::Lua;
use mlua_lshape::install;

let lua = Lua::new();
install(&lua)?;
lua.load(r#"
    local lshape = require("lshape")
    local T = lshape.t
    local Voted = T.shape({ answer = T.string, reasoning = T.string })
    local ok, why = lshape.check.check({ answer = "42", reasoning = "..." }, Voted)
    assert(ok, why)
"#).exec()?;
```

## Why vendored?

The upstream `lshape` is Pure Lua with no package manager dependency.
Shipping the sources inside this crate keeps downstream builds
hermetic — no LuaRocks, no filesystem probing, no version drift. The
same pattern is used by
[`mlua-probe-mcp`](https://crates.io/crates/mlua-probe-mcp) /
[`mlua-lspec`](https://crates.io/crates/mlua-lspec).

## Vendored sources

`lua/lshape/*.lua` is a verbatim copy of the upstream
[ynishi/lshape](https://github.com/ynishi/lshape) repository, pinned to
**v0.1.0**. See [`CHANGELOG.md`](./CHANGELOG.md) for the embedded
surface. Refresh via:

```bash
cp /path/to/lshape/lshape/*.lua lua/lshape/
```

The `LSHAPE_SOURCES` public constant exposes the embedded sources
(`&[(name, src)]`) for downstream consumers that want to inject them
into another Lua VM or hash them for drift checks.

## Lua version

This crate pins `mlua` to `lua54` + `vendored`, matching the sibling
`mlua-*` crates (`mlua-probe`, `mlua-lspec`, `mlua-check`). Other Lua
versions are not currently supported.

## License

MIT OR Apache-2.0. The vendored `lua/lshape/` files are dual-licensed
under the same terms, copyright Yutaka Nishimura.