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denoland-deno/js/read_link.ts
Ryan Dahl c9614d86c1
Move //libdeno to //core/libdeno (#2015)
Fixes some sed errors introduced in c43cfe.

Unfortunately moving libdeno required splitting build.rs into two parts,
one for cli and one for core.

I've also removed the arm64 build - it's complicating things at this
re-org and we're not even testing it. I need to swing back to it and get
tools/test.py running for it.
2019-03-30 14:45:36 -04:00

40 lines
1.3 KiB
TypeScript

// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import * as msg from "gen/cli/msg_generated";
import * as flatbuffers from "./flatbuffers";
import { assert } from "./util";
import * as dispatch from "./dispatch";
function req(name: string): [flatbuffers.Builder, msg.Any, flatbuffers.Offset] {
const builder = flatbuffers.createBuilder();
const name_ = builder.createString(name);
msg.Readlink.startReadlink(builder);
msg.Readlink.addName(builder, name_);
const inner = msg.Readlink.endReadlink(builder);
return [builder, msg.Any.Readlink, inner];
}
function res(baseRes: null | msg.Base): string {
assert(baseRes !== null);
assert(msg.Any.ReadlinkRes === baseRes!.innerType());
const res = new msg.ReadlinkRes();
assert(baseRes!.inner(res) !== null);
const path = res.path();
assert(path !== null);
return path!;
}
/** Returns the destination of the named symbolic link synchronously.
*
* const targetPath = Deno.readlinkSync("symlink/path");
*/
export function readlinkSync(name: string): string {
return res(dispatch.sendSync(...req(name)));
}
/** Returns the destination of the named symbolic link.
*
* const targetPath = await Deno.readlink("symlink/path");
*/
export async function readlink(name: string): Promise<string> {
return res(await dispatch.sendAsync(...req(name)));
}