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Reimplement the C# API.

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This commit reimplements the C# API in terms of a Wasmtime linker.

It removes the custom binding implementation that was based on reflection in
favor of the linker's implementation.

This should make the C# API a little closer to the Rust API.

The `Engine` and `Store` types have been hidden behind the `Host` type which is
responsible for hosting WebAssembly module instances.

Documentation and tests have been updated.
This commit is contained in:
Peter Huene
2020-03-24 18:20:22 -07:00
parent 0d5d63fdb1
commit cf1d9ee857
38 changed files with 2149 additions and 2213 deletions
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93
crates/misc/dotnet/src/Module.cs
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@@ -8,75 +8,6 @@ namespace Wasmtime
/// </summary>
public class Module : IDisposable
{
internal Module(Store store, string name, byte[] bytes)
{
if (store.Handle.IsInvalid)
{
throw new ArgumentNullException(nameof(store));
}
unsafe
{
fixed (byte *ptr = bytes)
{
Interop.wasm_byte_vec_t vec;
vec.size = (UIntPtr)bytes.Length;
vec.data = ptr;
Handle = Interop.wasm_module_new(store.Handle, ref vec);
}
if (Handle.IsInvalid)
{
throw new WasmtimeException($"WebAssembly module '{name}' is not valid.");
}
}
Store = store;
Name = name;
Imports = new Wasmtime.Imports.Imports(this);
Exports = new Wasmtime.Exports.Exports(this);
}
/// <summary>
/// Instantiates a WebAssembly module for the given host.
/// </summary>
/// <param name="host">The host to use for the WebAssembly module's instance.</param>
/// <returns>Returns a new <see cref="Instance" />.</returns>
public Instance Instantiate(IHost host = null)
{
return Instantiate(null, host);
}
/// <summary>
/// Instantiates a WebAssembly module for the given host.
/// </summary>
/// <param name="wasi">The WASI instance to use for WASI imports.</param>
/// <param name="host">The host to use for the WebAssembly module's instance.</param>
/// <returns>Returns a new <see cref="Instance" />.</returns>
public Instance Instantiate(Wasi wasi, IHost host = null)
{
if (!(host?.Instance is null))
{
throw new InvalidOperationException("The host has already been associated with an instantiated module.");
}
var instance = new Instance(this, wasi, host);
if (!(host is null))
{
host.Instance = instance;
return instance;
}
return instance;
}
/// <summary>
/// The <see cref="Store"/> associated with the module.
/// </summary>
public Store Store { get; private set; }
/// <summary>
/// The name of the module.
/// </summary>
@@ -108,6 +39,30 @@ namespace Wasmtime
}
}
internal Module(Interop.StoreHandle store, string name, byte[] bytes)
{
unsafe
{
fixed (byte *ptr = bytes)
{
Interop.wasm_byte_vec_t vec;
vec.size = (UIntPtr)bytes.Length;
vec.data = ptr;
Handle = Interop.wasm_module_new(store, ref vec);
}
if (Handle.IsInvalid)
{
throw new WasmtimeException($"WebAssembly module '{name}' is not valid.");
}
}
Name = name;
Imports = new Wasmtime.Imports.Imports(this);
Exports = new Wasmtime.Exports.Exports(this);
}
internal Interop.ModuleHandle Handle { get; private set; }
}
}