31 lines
1.0 KiB
C#
31 lines
1.0 KiB
C#
using CanonSharp.Combinator.Abstractions;
|
|
|
|
namespace CanonSharp.Combinator.Parsers.Modifiers;
|
|
|
|
/// <summary>
|
|
/// 对结果运行指定操作，但是不做修改操作的解析器
|
|
/// </summary>
|
|
/// <param name="parser">上游解析器</param>
|
|
/// <param name="succeed">对成功结果的操作</param>
|
|
/// <param name="fail">对失败结果的操作</param>
|
|
/// <typeparam name="TToken">输入流类型</typeparam>
|
|
/// <typeparam name="T">解析结果类型</typeparam>
|
|
internal sealed class DoParser<TToken, T>(
|
|
IParser<TToken, T> parser,
|
|
Action<T> succeed,
|
|
Action<IFailedResult<TToken, T>> fail) : ModifiedParser<TToken, T, T>(parser)
|
|
{
|
|
protected override IParseResult<TToken, T> Succeed<TState>(TState state,
|
|
ISuccessfulResult<TToken, T> successfulResult)
|
|
{
|
|
succeed(successfulResult.Value);
|
|
return successfulResult;
|
|
}
|
|
|
|
protected override IParseResult<TToken, T> Fail<TState>(TState state, IFailedResult<TToken, T> failedResult)
|
|
{
|
|
fail(failedResult);
|
|
return failedResult;
|
|
}
|
|
}
|