46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
use crate::{
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Request,
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request_tokenizer::RequestTokenizer,
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commands::{
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Command, RequestParserError, RequestParserResult, ResponseAttributes, ResponseParserError,
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},
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common::OneOrRange,
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};
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pub struct Shuffle;
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impl Command for Shuffle {
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type Request = Option<OneOrRange>;
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type Response = ();
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const COMMAND: &'static str = "shuffle";
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fn serialize_request(&self, request: Self::Request) -> String {
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match request {
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Some(range) => format!("{} {}", Self::COMMAND, range),
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None => Self::COMMAND.to_string(),
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}
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}
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fn parse_request(mut parts: RequestTokenizer<'_>) -> RequestParserResult<'_> {
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let range = parts
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.next()
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.map(|range| {
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range
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.parse()
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.map_err(|_| RequestParserError::SyntaxError(0, range.to_string()))
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})
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.transpose()?;
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debug_assert!(parts.next().is_none());
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Ok((Request::Shuffle(range), ""))
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}
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fn parse_response(
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parts: ResponseAttributes<'_>,
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) -> Result<Self::Response, ResponseParserError<'_>> {
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debug_assert!(parts.is_empty());
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Ok(())
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}
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}
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