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denoland-deno/cli/js/plugins.ts

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import { openPlugin as openPluginOp } from "./ops/plugins.ts";
import { core } from "./core.ts";
export interface AsyncHandler {
(msg: Uint8Array): void;
}
interface PluginOp {
dispatch(
control: Uint8Array,
zeroCopy?: ArrayBufferView | null
): Uint8Array | null;
setAsyncHandler(handler: AsyncHandler): void;
}
class PluginOpImpl implements PluginOp {
constructor(private readonly opId: number) {}
dispatch(
control: Uint8Array,
zeroCopy?: ArrayBufferView | null
): Uint8Array | null {
return core.dispatch(this.opId, control, zeroCopy);
}
setAsyncHandler(handler: AsyncHandler): void {
core.setAsyncHandler(this.opId, handler);
}
}
// TODO(afinch7): add close method.
interface Plugin {
ops: {
[name: string]: PluginOp;
};
}
class PluginImpl implements Plugin {
private _ops: { [name: string]: PluginOp } = {};
constructor(private readonly rid: number, ops: { [name: string]: number }) {
for (const op in ops) {
this._ops[op] = new PluginOpImpl(ops[op]);
}
}
get ops(): { [name: string]: PluginOp } {
return Object.assign({}, this._ops);
}
}
export function openPlugin(filename: string): Plugin {
const response = openPluginOp(filename);
return new PluginImpl(response.rid, response.ops);
}