import { devAssert } from '../jsutils/devAssert.js';
import { instanceOf } from '../jsutils/instanceOf.js';
interface Location {
line: number;
column: number;
}
export class Source {
body: string;
name: string;
locationOffset: Location;
constructor(
body: string,
name: string = 'GraphQL request',
locationOffset: Location = { line: 1, column: 1 },
) {
this.body = body;
this.name = name;
this.locationOffset = locationOffset;
devAssert(
this.locationOffset.line > 0,
'line in locationOffset is 1-indexed and must be positive.',
);
devAssert(
this.locationOffset.column > 0,
'column in locationOffset is 1-indexed and must be positive.',
);
}
get [Symbol.toStringTag]() {
return 'Source';
}
}
export function isSource(source: unknown): source is Source {
return instanceOf(source, Source);
}