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code.ts
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69 lines (58 loc) · 1.79 KB
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import type { Document } from './bson';
import { BSONValue } from './bson_value';
import { type InspectFn, defaultInspect } from './parser/utils';
/** @public */
export interface CodeExtended {
$code: string;
$scope?: Document;
}
/**
* A class representation of the BSON Code type.
* @public
* @category BSONType
*/
export class Code extends BSONValue {
get _bsontype(): 'Code' {
return 'Code';
}
code: string;
// a code instance having a null scope is what determines whether
// it is BSONType 0x0D (just code) / 0x0F (code with scope)
scope: Document | null;
/**
* @param code - a string or function.
* @param scope - an optional scope for the function.
*/
constructor(code: string | Function, scope?: Document | null) {
super();
this.code = code.toString();
this.scope = scope ?? null;
}
toJSON(): { code: string; scope?: Document } {
if (this.scope != null) {
return { code: this.code, scope: this.scope };
}
return { code: this.code };
}
/** @internal */
toExtendedJSON(): CodeExtended {
if (this.scope) {
return { $code: this.code, $scope: this.scope };
}
return { $code: this.code };
}
/** @internal */
static fromExtendedJSON(doc: CodeExtended): Code {
return new Code(doc.$code, doc.$scope);
}
inspect(depth?: number, options?: unknown, inspect?: InspectFn): string {
inspect ??= defaultInspect;
let parametersString = inspect(this.code, options);
const multiLineFn = parametersString.includes('\n');
if (this.scope != null) {
parametersString += `,${multiLineFn ? '\n' : ' '}${inspect(this.scope, options)}`;
}
const endingNewline = multiLineFn && this.scope === null;
return `new Code(${multiLineFn ? '\n' : ''}${parametersString}${endingNewline ? '\n' : ''})`;
}
}