Function getObjectLiteral

packages/language/src/utils.ts:350–371

(expr: Expression | ConfigExpr | undefined)

 * Tries to get an object literal from the given expression. Returns `undefined` if the expression is not an object literal or if any of the field values cannot be determined.
 */
export function getObjectLiteral<T>(expr: Expression | ConfigExpr | undefined): T | undefined {
    if (!expr || !isObjectExpr(expr)) {
        return undefined;
    }
    const result: Record<string, unknown> = {};
    for (const field of expr.fields) {
        let fieldValue: unknown;
        if (isLiteralExpr(field.value)) {
            fieldValue = getLiteral(field.value);
        } else if (isArrayExpr(field.value)) {
            fieldValue = getLiteralArray(field.value);
        } else if (isObjectExpr(field.value)) {
            fieldValue = getObjectLiteral(field.value);
        }
        if (fieldValue === undefined) {
            return undefined;
        } else {
            result[field.name] = fieldValue;
        }
    }
    return result as T;
}

export function getLiteralArray<T extends string | number | boolean | any = any>(
    expr: Expression | ConfigExpr | undefined,