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Migrate from a macro to an attribute

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This commit migrates from `wasm_bindgen!`-the-macro to
`#[wasm_bindgen]`-the-attribute. The actual mechanics of the macro are
relatively simple in just generating some shims here and there, but wrapping
everything in one huge macro invocation can often seem intimidating as it gives
off this feeling of "oh dear anything can happen here!" Using an attribute
should curb expectations much more greatly of "oh there's just some extra stuff
happening behind the scenes".

The usage is otherwise relatively straightforward and close to what it was
before, but check out the DESIGN.md/README.md changes for more info!
This commit is contained in:
Alex Crichton
2018-02-07 16:41:33 -08:00
parent 70614f808e
commit 29771b574c
15 changed files with 1400 additions and 1273 deletions
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5
src/lib.rs
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@ -1,8 +1,9 @@
//! Runtime support for the `wasm-bindgen` tool
//!
//! This crate contains the runtime support necessary for `wasm-bindgen` the
//! macro and tool. Crates pull in the `wasm_bindgen!` macro through this crate
//! and this crate also provides JS bindings through the `JsValue` interface.
//! attribute and tool. Crates pull in the `#[wasm_bindgen]` attribute through
//! this crate and this crate also provides JS bindings through the `JsValue`
//! interface.
#![feature(use_extern_macros)]