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use crate::structure::{Property, Vertex, GID};
use std::collections::hash_map::{IntoIter, Iter};
use std::collections::HashMap;
use std::hash::Hasher;
#[derive(Debug, Clone)]
pub struct Edge {
id: GID,
label: String,
in_v: Vertex,
out_v: Vertex,
properties: HashMap<String, Property>,
}
impl Edge {
pub(crate) fn new<T>(
id: GID,
label: T,
in_v_id: GID,
in_v_label: T,
out_v_id: GID,
out_v_label: T,
properties: HashMap<String, Property>,
) -> Edge
where
T: Into<String>,
{
Edge {
id,
label: label.into(),
in_v: Vertex::new(in_v_id, in_v_label, HashMap::new()),
out_v: Vertex::new(out_v_id, out_v_label, HashMap::new()),
properties,
}
}
pub fn id(&self) -> &GID {
&self.id
}
pub fn label(&self) -> &String {
&self.label
}
pub fn in_v(&self) -> &Vertex {
&self.in_v
}
pub fn out_v(&self) -> &Vertex {
&self.out_v
}
pub fn iter(&self) -> Iter<String, Property> {
self.properties.iter()
}
pub fn property(&self, key: &str) -> Option<&Property> {
self.properties.get(key)
}
}
impl IntoIterator for Edge {
type Item = (String, Property);
type IntoIter = IntoIter<String, Property>;
fn into_iter(self) -> Self::IntoIter {
self.properties.into_iter()
}
}
impl std::cmp::Eq for Edge {}
impl PartialEq for Edge {
fn eq(&self, other: &Edge) -> bool {
&self.id == other.id()
}
}
impl std::hash::Hash for Edge {
fn hash<H: Hasher>(&self, state: &mut H) {
self.id.hash(state);
}
}