Alex Crichton 44738e049a Add warnings about UTF-16 vs UTF-8 strings ... This commit aims to address #1348 via a number of strategies: * Documentation is updated to warn about UTF-16 vs UTF-8 problems between JS and Rust. Notably documenting that `as_string` and handling of arguments is lossy when there are lone surrogates. * A `JsString::is_valid_utf16` method was added to test whether `as_string` is lossless or not. The intention is that most default behavior of `wasm-bindgen` will remain, but where necessary bindings will use `JsString` instead of `str`/`String` and will manually check for `is_valid_utf16` as necessary. It's also hypothesized that this is relatively rare and not too performance critical, so an optimized intrinsic for `is_valid_utf16` is not yet provided. Closes #1348		2019-04-05 08:11:50 -07:00
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wasm	Add warnings about UTF-16 vs UTF-8 strings	2019-04-05 08:11:50 -07:00
headless.js	Add support for headless testing	2018-07-30 11:07:07 -07:00
headless.rs	Fix js-sys and web-sys tests	2019-03-05 08:00:47 -08:00