Alex Crichton 7cf4213283 Allow returning Result from functions ... This commit adds support for exporting a function defined in Rust that returns a `Result`, translating the `Ok` variant to the actual return value and the `Err` variant to an exception that's thrown in JS. The support for return types and descriptors was rejiggered a bit to be a bit more abstract and more well suited for this purpose. We no longer distinguish between functions with a return value and those without a return value. Additionally a new trait, `ReturnWasmAbi`, is used for converting return values. This trait is an internal implementation detail, however, and shouldn't surface itself to users much (if at all). Closes #841		2018-09-18 13:13:59 -07:00
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crates	Remove use_extern_macros features	2018-08-19 14:33:01 -07:00
no-std	Remove use_extern_macros features	2018-08-19 14:33:01 -07:00
wasm	Allow returning Result from functions	2018-09-18 13:13:59 -07:00
headless.rs	Remove use_extern_macros features	2018-08-19 14:33:01 -07:00
non_wasm.rs	Remove use_extern_macros features	2018-08-19 14:33:01 -07:00
std-crate-no-std-dep.rs	Remove use_extern_macros features	2018-08-19 14:33:01 -07:00