opendrive 0.1.0+1.7.0

OpenDRIVE parser and writer for Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

use std::borrow::Cow;

/// Signal dependency means that one signal controls the output of another signal. A signal may have
/// multiple dependency elements.
#[derive(Debug, Clone, PartialEq)]
#[cfg_attr(feature = "fuzzing", derive(arbitrary::Arbitrary))]
pub struct Dependency {
    /// ID of the controlling signal
    pub id: String,
    /// Type of the dependency,
    /// Free text, depending on application
    pub r#type: Option<String>,
}

impl Dependency {
    pub fn visit_attributes(
        &self,
        visitor: impl for<'b> FnOnce(
            Cow<'b, [xml::attribute::Attribute<'b>]>,
        ) -> xml::writer::Result<()>,
    ) -> xml::writer::Result<()> {
        visit_attributes_flatten!(
            visitor,
            "id" => Some(self.id.as_str()),
            "type" => self.r#type.as_deref(),
        )
    }

    pub fn visit_children(
        &self,
        mut visitor: impl FnMut(xml::writer::XmlEvent) -> xml::writer::Result<()>,
    ) -> xml::writer::Result<()> {
        visit_children!(visitor);
        Ok(())
    }
}

impl<'a, I> TryFrom<crate::parser::ReadContext<'a, I>> for Dependency
where
    I: Iterator<Item = xml::reader::Result<xml::reader::XmlEvent>>,
{
    type Error = Box<crate::parser::Error>;

    fn try_from(mut read: crate::parser::ReadContext<'a, I>) -> Result<Self, Self::Error> {
        read.expecting_no_child_elements_for(Self {
            id: read.attribute("id")?,
            r#type: read.attribute_opt("type")?,
        })
    }
}