mirror of
https://github.com/denoland/deno.git
synced 2024-10-29 08:58:01 -04:00
4d6f412b0b
Async WebAssembly compilation was implemented by adding two bindings: `set_wasm_streaming_callback`, which registered a callback to be called whenever a streaming wasm compilation was started, and `wasm_streaming_feed`, which let the JS callback modify the state of the v8 wasm compiler. `set_wasm_streaming_callback` cannot currently be implemented as anything other than a binding, but `wasm_streaming_feed` does not really need to use anything specific to bindings, and could indeed be implemented as one or more ops. This PR does that, resulting in a simplification of the relevant code. There are three operations on the state of the v8 wasm compiler that `wasm_streaming_feed` allowed: feeding new bytes into the compiler, letting it know that there are no more bytes coming from the network, and aborting the compilation. This PR provides `op_wasm_streaming_feed` to feed new bytes into the compiler, and `op_wasm_streaming_abort` to abort the compilation. It doesn't provide an op to let v8 know that the response is finished, but closing the resource with `Deno.core.close()` will achieve that.
73 lines
2.4 KiB
TypeScript
73 lines
2.4 KiB
TypeScript
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
|
|
|
|
// deno-lint-ignore-file no-explicit-any
|
|
|
|
/// <reference no-default-lib="true" />
|
|
/// <reference lib="esnext" />
|
|
|
|
declare namespace Deno {
|
|
declare namespace core {
|
|
/** Call an op in Rust, and synchronously receive the result. */
|
|
function opSync(
|
|
opName: string,
|
|
a?: any,
|
|
b?: any,
|
|
): any;
|
|
|
|
/** Call an op in Rust, and asynchronously receive the result. */
|
|
function opAsync(
|
|
opName: string,
|
|
a?: any,
|
|
b?: any,
|
|
): Promise<any>;
|
|
|
|
/**
|
|
* Retrieve a list of all registered ops, in the form of a map that maps op
|
|
* name to internal numerical op id.
|
|
*/
|
|
function ops(): Record<string, number>;
|
|
|
|
/**
|
|
* Retrieve a list of all open resources, in the form of a map that maps
|
|
* resource id to the resource name.
|
|
*/
|
|
function resources(): Record<string, string>;
|
|
|
|
/**
|
|
* Close the resource with the specified op id. Throws `BadResource` error
|
|
* if resource doesn't exist in resource table.
|
|
*/
|
|
function close(rid: number): void;
|
|
|
|
/**
|
|
* Try close the resource with the specified op id; if resource with given
|
|
* id doesn't exist do nothing.
|
|
*/
|
|
function tryClose(rid: number): void;
|
|
|
|
/** Get heap stats for current isolate/worker */
|
|
function heapStats(): Record<string, number>;
|
|
|
|
/** Encode a string to its Uint8Array representation. */
|
|
function encode(input: string): Uint8Array;
|
|
|
|
/**
|
|
* Set a callback that will be called when the WebAssembly streaming APIs
|
|
* (`WebAssembly.compileStreaming` and `WebAssembly.instantiateStreaming`)
|
|
* are called in order to feed the source's bytes to the wasm compiler.
|
|
* The callback is called with the source argument passed to the streaming
|
|
* APIs and an rid to use with the wasm streaming ops.
|
|
*
|
|
* The callback should eventually invoke the following ops:
|
|
* - `op_wasm_streaming_feed`. Feeds bytes from the wasm resource to the
|
|
* compiler. Takes the rid and a `Uint8Array`.
|
|
* - `op_wasm_streaming_abort`. Aborts the wasm compilation. Takes the rid
|
|
* and an exception. Invalidates the resource.
|
|
* - To indicate the end of the resource, use `Deno.core.close()` with the
|
|
* rid.
|
|
*/
|
|
function setWasmStreamingCallback(
|
|
cb: (source: any, rid: number) => void,
|
|
): void;
|
|
}
|
|
}
|