import {Command} from "./command.js";
import {LexInput} from "../lexer.js";
import {StrVM} from "../vm.js";
import {Awaitable} from "../../util/types.js";

export class Abs extends Command<{}> {
    attemptParse(): Awaitable<{}> {
        return {}
    }

    getDisplayName(): string {
        return 'abs'
    }

    isParseCandidate(token: LexInput): boolean {
        return this.isKeyword(token, 'abs')
    }

    async execute(vm: StrVM): Promise<StrVM> {
        return vm.replaceContextMatchingTerm({
            int: sub => Math.abs(sub),
        })
    }
}