hyejin lee

add wasm-backend using HTML canvas element

7

Add WebAssembly (WASM) backend to Cursive library This PR adds a new backend to the Cursive library that allows it to be used in WebAssembly (WASM) environments. The new backend...

  call count print_at : paint = 199425 : 1

``` bootstrap.js:5 Error importing `index.js`: RuntimeError: unreachable at __rust_start_panic (8548a4dfbf778c01a17b.module.wasm:0x141f87) at rust_panic (8548a4dfbf778c01a17b.module.wasm:0x140305) at std::panicking::rust_panic_with_hook::hc53aea0352e77326 (8548a4dfbf778c01a17b.module.wasm:0xeffe9) at std::panicking::begin_panic_handler::{{closure}}::ha183a8279614f03a (8548a4dfbf778c01a17b.module.wasm:0x1068a2) at std::sys_common::backtrace::__rust_end_short_backtrace::hc33870f333461503 (8548a4dfbf778c01a17b.module.wasm:0x13f0c5) at rust_begin_unwind (8548a4dfbf778c01a17b.module.wasm:0x12a2b8) at core::panicking::panic_fmt::hf4a9df75710ece83 (8548a4dfbf778c01a17b.module.wasm:0x13ad82) at core::panicking::panic_bounds_check::h8c0b59521a475ac0...