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wasmtime/examples
Alex Crichton 8384f3a347 Bring back Module::deserialize (#2858)
* Bring back `Module::deserialize`

I thought I was being clever suggesting that `Module::deserialize` was
removed from #2791 by funneling all module constructors into
`Module::new`. As our studious fuzzers have found, though, this means
that `Module::new` is not safe currently to pass arbitrary user-defined
input into. Now one might pretty reasonable expect to be able to do
that, however, being a WebAssembly engine and all. This PR as a result
separates the `deserialize` part of `Module::new` back into
`Module::deserialize`.

This means that binary blobs created with `Module::serialize` and
`Engine::precompile_module` will need to be passed to
`Module::deserialize` to "rehydrate" them back into a `Module`. This
restores the property that it should be safe to pass arbitrary input to
`Module::new` since it's always expected to be a wasm module. This also
means that fuzzing will no longer attempt to fuzz `Module::deserialize`
which isn't something we want to do anyway.

* Fix an example

* Mark `Module::deserialize` as `unsafe`
2021-04-27 10:55:12 -05:00
..
2021-03-26 15:37:57 -07:00
2021-03-26 15:37:57 -07:00

Examples of the wasmtime API

This directory contains a number of examples of using the wasmtime API from different languages. Currently examples are all in Rust and C using the wasmtime crate or the wasmtime embedding API.

Each example is available in both C and in Rust. Examples are accompanied with a *.wat file which is the wasm input, or a Rust project in a wasm folder which is the source code for the original wasm file.

Rust examples can be executed with cargo run --example $name, and C examples need to be compiled using your system compiler and appropriate header files.

For more information see the examples themselves!