mirror of https://github.com/chipsenkbeil/distant
Refactor header into newtype
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4514e49122
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use crate::common::Value;
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use derive_more::IntoIterator;
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use serde::{Deserialize, Serialize};
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use std::collections::HashMap;
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use std::ops::{Deref, DerefMut};
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/// Generates a new [`Header`] of key/value pairs based on literals.
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///
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/// ```
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/// use distant_net::header;
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///
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/// let _header = header!("key" -> "value", "key2" -> 123);
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/// ```
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#[macro_export]
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macro_rules! header {
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($($key:literal -> $value:expr),* $(,)?) => {{
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let mut _header = ::std::collections::HashMap::new();
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$(
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_header.insert($key.to_string(), $crate::common::Value::from($value));
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)*
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$crate::common::Header::new(_header)
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}};
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}
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/// Represents a packet header for a request or response
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#[derive(Clone, Debug, Default, PartialEq, Eq, IntoIterator, Serialize, Deserialize)]
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#[serde(transparent)]
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pub struct Header(HashMap<String, Value>);
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impl Header {
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/// Creates a new [`Header`] newtype wrapper.
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pub fn new(map: HashMap<String, Value>) -> Self {
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Self(map)
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}
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/// Exists purely to support serde serialization checks.
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#[inline]
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pub(crate) fn is_empty(&self) -> bool {
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self.0.is_empty()
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}
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}
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impl Deref for Header {
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type Target = HashMap<String, Value>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl DerefMut for Header {
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fn deref_mut(&mut self) -> &mut Self::Target {
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&mut self.0
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}
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}
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