parseOn method

  1. @override
Result<R> parseOn(
  1. Context context
)
override

Parses the given context.

Overridden in concrete subclasses to implement the parser-specific logic. Takes a parse context and returns the resulting context, which is either a Success or Failure context.

Implementation

@override
Result<R> parseOn(Context context) {
  final result = delegate.parseOn(context);
  if (result is Failure) return result;
  final value = result.value;
  return result.success(value[index < 0 ? value.length + index : index]);
}