Add C API function to create module from engine instead of store

lib/c-api/src/wasm_c_api/unstable/module.rs

@@ -1,9 +1,11 @@
 //! Unstable non-standard Wasmer-specific extensions to the Wasm C API.
 
+use super::super::engine::wasm_engine_t;
 use super::super::module::wasm_module_t;
-use super::super::types::wasm_name_t;
+use super::super::types::{wasm_byte_vec_t, wasm_name_t};
 use std::ptr;
 use std::str;
+use wasmer_api::Module;
 
 /// Unstable non-standard Wasmer-specific API to get the module's
 /// name, otherwise `out->size` is set to `0` and `out->data` to
@@ -150,3 +152,30 @@ pub unsafe extern "C" fn wasmer_module_set_name(
 
     module.inner.set_name(name)
 }
+
+/// A WebAssembly module contains stateless WebAssembly code that has
+/// already been compiled and can be instantiated multiple times.
+///
+/// Creates a new WebAssembly Module using the provided engine,
+/// respecting its configuration.
+///
+/// ## Security
+///
+/// Before the code is compiled, it will be validated using the engine
+/// features.
+///
+/// # Example
+///
+/// See the module's documentation.
+#[no_mangle]
+pub unsafe extern "C" fn wasmer_module_new(
+    engine: Option<&mut wasm_engine_t>,
+    bytes: Option<&wasm_byte_vec_t>,
+) -> Option<Box<wasm_module_t>> {
+    let engine: wasmer_api::Engine = engine?.inner.clone().into();
+    let bytes = bytes?;
+
+    let module = c_try!(Module::from_binary(&engine, bytes.as_slice()));
+
+    Some(Box::new(wasm_module_t { inner: module }))
+}