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Move the C API to a separate crate (#818)

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* Move the C API to a separate crate

This commit moves the C API from `crates/api/src/wasm.rs` to
`crates/capi/src/lib.rs` to be located in a separate crate. There's a
number of reasons for this:

* When a Rust program depends on the `wasmtime` crate, there's no need
  to compile in the C API.
* This should improve compile times of the `wasmtime` crate since it's
  not producing artifacts which aren't always used.
* The development of the C API can be guaranteed to only use the public
  API of the `wasmtime` crate itself.

Some CI pieces are tweaked and this overall shouldn't have much impact
on users, it's intended that it's a cleanup/speedup for developers!

* Disable rustdoc/tests for capi

* Review feedback

* Add back in accidentally deleted comment

* More renamings

* Try to fix dotnet build
This commit is contained in:
Alex Crichton
2020-01-14 13:36:57 -06:00
committed by Dan Gohman
parent 7f997fe7a6
commit 364fa994ed
17 changed files with 289 additions and 29 deletions
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9
crates/api/README.md
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@@ -1,3 +1,8 @@
# Implementation of wasm-c-api in Rust
## Wasmtime Embedding API
https://github.com/WebAssembly/wasm-c-api
The `wasmtime` crate is an embedding API of the `wasmtime` WebAssembly runtime.
This is intended to be used in Rust projects and provides a high-level API of
working with WebAssembly modules.
If you're interested in embedding `wasmtime` in other languages, you may wish to
take a look a the [C embedding API](../c-api) instead!