syndicate-js/packages/core/src/runtime/assertions.ts

63 lines
2.3 KiB
TypeScript

//---------------------------------------------------------------------------
// @syndicate-lang/core, an implementation of Syndicate dataspaces for JS.
// Copyright (C) 2016-2021 Tony Garnock-Jones <tonyg@leastfixedpoint.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//---------------------------------------------------------------------------
import { Record, RecordConstructor, AsPreserve, Value } from '@preserves/core';
export class Seal {
readonly contents: any;
constructor(contents: any) {
this.contents = contents;
}
[AsPreserve](): any { // should return Value; we are cheating
return this;
}
}
interface Discard extends RecordConstructor<typeof _Discard, {}, []> {
_instance: Record<typeof _Discard, []>;
}
const _Discard = Symbol.for('discard');
export const Discard: Discard = (function () {
let Discard: any = Record.makeConstructor<{}>()(_Discard, []);
Discard._instance = Discard();
return Discard;
})();
export const _Capture = Symbol.for('capture');
export const Capture = Record.makeConstructor<{specification: Value}>()(
_Capture, ['specification']);
export const _Observe = Symbol.for('observe');
export const Observe = Record.makeConstructor<{specification: Value}>()(
_Observe, ['specification']);
export const _Inbound = Symbol.for('inbound');
export const Inbound = Record.makeConstructor<{assertion: Value}>()(
_Inbound, ['assertion']);
export const _Outbound = Symbol.for('outbound');
export const Outbound = Record.makeConstructor<{assertion: Value}>()(
_Outbound, ['assertion']);
export const _Instance = Symbol.for('instance');
export const Instance = Record.makeConstructor<{uniqueId: Value}>()(
_Instance, ['uniqueId']);