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
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119

// Copyright 2014 The Servo Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use crate::{Atom, StaticAtomSet};
#[cfg(feature = "serde_support")]
use serde::{Deserialize, Deserializer, Serialize, Serializer};
use std::borrow::Cow;
use std::fmt;

impl<Static: StaticAtomSet> ::precomputed_hash::PrecomputedHash for Atom<Static> {
    fn precomputed_hash(&self) -> u32 {
        self.get_hash()
    }
}

impl<'a, Static: StaticAtomSet> From<&'a Atom<Static>> for Atom<Static> {
    fn from(atom: &'a Self) -> Self {
        atom.clone()
    }
}

impl<Static: StaticAtomSet> PartialEq<str> for Atom<Static> {
    fn eq(&self, other: &str) -> bool {
        &self[..] == other
    }
}

impl<Static: StaticAtomSet> PartialEq<Atom<Static>> for str {
    fn eq(&self, other: &Atom<Static>) -> bool {
        self == &other[..]
    }
}

impl<Static: StaticAtomSet> PartialEq<String> for Atom<Static> {
    fn eq(&self, other: &String) -> bool {
        self[..] == other[..]
    }
}

impl<'a, Static: StaticAtomSet> From<&'a str> for Atom<Static> {
    #[inline]
    fn from(string_to_add: &str) -> Self {
        Atom::from(Cow::Borrowed(string_to_add))
    }
}

impl<Static: StaticAtomSet> From<String> for Atom<Static> {
    #[inline]
    fn from(string_to_add: String) -> Self {
        Atom::from(Cow::Owned(string_to_add))
    }
}

impl<Static: StaticAtomSet> fmt::Display for Atom<Static> {
    #[inline]
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        <str as fmt::Display>::fmt(self, f)
    }
}

impl<Static: StaticAtomSet> AsRef<str> for Atom<Static> {
    fn as_ref(&self) -> &str {
        self
    }
}

#[cfg(feature = "serde_support")]
impl<Static: StaticAtomSet> Serialize for Atom<Static> {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        let string: &str = self.as_ref();
        string.serialize(serializer)
    }
}

#[cfg(feature = "serde_support")]
impl<'a, Static: StaticAtomSet> Deserialize<'a> for Atom<Static> {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'a>,
    {
        use serde::de;
        use std::marker::PhantomData;

        struct AtomVisitor<Static: StaticAtomSet>(PhantomData<Static>);

        impl<'de, Static: StaticAtomSet> de::Visitor<'de> for AtomVisitor<Static> {
            type Value = Atom<Static>;

            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
                write!(formatter, "an Atom")
            }

            fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
            where
                E: de::Error,
            {
                Ok(Atom::from(v))
            }

            fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
            where
                E: de::Error,
            {
                Ok(Atom::from(v))
            }
        }

        deserializer.deserialize_str(AtomVisitor(PhantomData))
    }
}