import { descriptorString } from './Descriptor';
import * as lsif from './lsif';

export class LsifSymbol {
    private constructor(public readonly value: string) {}

    public isEmpty(): boolean {
        return this.value === '';
    }

    public isLocal(): boolean {
        return this.value.startsWith('local ');
    }

    public static local(counter: number): LsifSymbol {
        return new LsifSymbol(`local ${counter}`);
    }

    public static empty(): LsifSymbol {
        return new LsifSymbol('');
    }

    public static package(name: string, version: string): LsifSymbol {
        return new LsifSymbol(`${name}::`);
    }

    public static global(owner: LsifSymbol, descriptor: lsif.lib.codeintel.lsiftyped.Descriptor): LsifSymbol {
        return new LsifSymbol(owner.value + descriptorString(descriptor));
    }
}