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better parser generation

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This commit is contained in:
nora 2022-02-12 21:53:09 +01:00
parent c43126af1f
commit 83778ac2c9
10 changed files with 859 additions and 516 deletions
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19
amqp_transport/src/classes/mod.rs
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@ -1,3 +1,5 @@
use crate::classes::generated::Class;
use crate::error::{ConException, ProtocolError, TransError};
use std::collections::HashMap;
mod generated;
@ -5,6 +7,7 @@ mod parse_helper;
pub type Table = HashMap<String, FieldValue>;
#[derive(Debug, Clone, PartialEq)]
pub enum FieldValue {
Boolean(bool),
ShortShortInt(i8),
@ -25,3 +28,19 @@ pub enum FieldValue {
FieldTable(Table),
Void,
}
pub use generated::*;
/// Parses the payload of a method frame into the class/method
pub fn parse_method(payload: &[u8]) -> Result<Class, TransError> {
let nom_result = generated::parse::parse_method(payload);
match nom_result {
Ok(([], class)) => Ok(class),
Ok((_, _)) => Err(ProtocolError::ConException(ConException::SyntaxError).into()),
Err(nom::Err::Incomplete(_)) => {
Err(ProtocolError::ConException(ConException::SyntaxError).into())
}
Err(nom::Err::Failure(err) | nom::Err::Error(err)) => Err(err),
}
}