tycho/read/async_/
value.rs1use tokio::io::AsyncRead;
2
3use crate::error::{TychoError, TychoResult};
4use crate::ident::ValueIdent;
5use crate::read::async_::func::{read_byte_async, read_bytes_async};
6use crate::read::async_::length::read_length_async;
7use crate::read::async_::number::{read_number_async, read_number_ident_async};
8use crate::read::async_::string::{read_char_async, read_string_async};
9use crate::{Value, Uuid};
10
11pub(crate) async fn read_value_ident_async<R: AsyncRead + Unpin>(reader: &mut R) -> TychoResult<ValueIdent> {
12 let byte = read_byte_async(reader).await?;
13
14 match byte {
15 0x00 => Ok(ValueIdent::Null),
16 0x01 => Ok(ValueIdent::Boolean),
17 0x02 => Ok(ValueIdent::String),
18 0x03 => Ok(ValueIdent::Char),
19 0x04 => Ok(ValueIdent::Number(read_number_ident_async(reader).await?)),
20 0x05 => Ok(ValueIdent::Bytes),
21 0x06 => Ok(ValueIdent::UUID),
22
23 _ => Err(TychoError::InvalidIdent { found: byte, expecting: "value ident".to_string() })
24 }
25}
26
27pub(crate) async fn read_value_async<R: AsyncRead + Unpin>(reader: &mut R, ident: &ValueIdent) -> TychoResult<Value> {
28 match ident {
29 ValueIdent::Null => Ok(Value::Null),
30 ValueIdent::Boolean => Ok(Value::Boolean(read_byte_async(reader).await? == 0x01)),
31 ValueIdent::String => Ok(Value::String(read_string_async(reader).await?)),
32 ValueIdent::Char => Ok(Value::Char(read_char_async(reader).await?)),
33 ValueIdent::Number(n) => Ok(Value::Number(read_number_async(reader, n).await?)),
34 ValueIdent::Bytes => {
35 let length = read_length_async(reader).await?;
36 Ok(Value::Bytes(read_bytes_async(reader, length).await?))
37 }
38 ValueIdent::UUID => {
39 let bytes = [
41 read_byte_async(reader).await?, read_byte_async(reader).await?,
42 read_byte_async(reader).await?, read_byte_async(reader).await?,
43 read_byte_async(reader).await?, read_byte_async(reader).await?,
44 read_byte_async(reader).await?, read_byte_async(reader).await?,
45 read_byte_async(reader).await?, read_byte_async(reader).await?,
46 read_byte_async(reader).await?, read_byte_async(reader).await?,
47 read_byte_async(reader).await?, read_byte_async(reader).await?,
48 read_byte_async(reader).await?, read_byte_async(reader).await?,
49 ];
50 Ok(Value::UUID(Uuid::from_slice(bytes)))
51 }
52 }
53}