ftth_rsip/headers/typed/
to.rs

1#[doc(hidden)]
2pub use super::tokenizers::DisplayUriParamsTokenizer as Tokenizer;
3
4use crate::common::uri::param::Tag;
5use crate::common::{uri::Param, Uri};
6use rsip_derives::{TypedHeader, UriAndParamsHelpers};
7use std::convert::{TryFrom, TryInto};
8
9/// The `To` header in its [typed](super) form.
10#[derive(TypedHeader, UriAndParamsHelpers, Eq, PartialEq, Clone, Debug)]
11pub struct To {
12    pub display_name: Option<String>,
13    pub uri: Uri,
14    pub params: Vec<Param>,
15}
16
17impl<'a> TryFrom<Tokenizer<'a>> for To {
18    type Error = crate::Error;
19
20    fn try_from(tokenizer: Tokenizer) -> Result<Self, Self::Error> {
21        Ok(To {
22            display_name: tokenizer.display_name.map(Into::into),
23            uri: tokenizer.uri.try_into()?,
24            params: tokenizer
25                .params
26                .into_iter()
27                .map(TryInto::try_into)
28                .collect::<Result<Vec<_>, _>>()?,
29        })
30    }
31}
32
33impl To {
34    pub fn tag(&self) -> Option<&Tag> {
35        self.params.iter().find_map(|param| match param {
36            Param::Tag(tag) => Some(tag),
37            _ => None,
38        })
39    }
40
41    pub fn with_tag(mut self, tag: Tag) -> Self {
42        self.params
43            .retain(|param| !matches!(param, Param::Tag(Tag { .. })));
44
45        self.params.push(Tag::new(tag).into());
46        self
47    }
48}
49
50impl std::fmt::Display for To {
51    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
52        match &self.display_name {
53            Some(display_name) => write!(
54                f,
55                "{} <{}>{}",
56                display_name,
57                self.uri,
58                self.params
59                    .iter()
60                    .map(|s| s.to_string())
61                    .collect::<Vec<_>>()
62                    .join("")
63            ),
64            None => write!(
65                f,
66                "<{}>{}",
67                self.uri,
68                self.params
69                    .iter()
70                    .map(|s| s.to_string())
71                    .collect::<Vec<_>>()
72                    .join("")
73            ),
74        }
75    }
76}
77
78impl std::convert::From<crate::common::Uri> for To {
79    fn from(uri: crate::common::Uri) -> Self {
80        Self {
81            display_name: None,
82            uri,
83            params: Default::default(),
84        }
85    }
86}
ftth_rsip/headers/typed/to.rs

ftth_rsip/headers/typed/
to.rs
