boa/value/
hash.rs

1use super::*;
2
3use crate::builtins::Number;
4use std::hash::{Hash, Hasher};
5
6impl PartialEq for JsValue {
7    fn eq(&self, other: &Self) -> bool {
8        Self::same_value_zero(self, other)
9    }
10}
11
12impl Eq for JsValue {}
13
14#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
15struct UndefinedHashable;
16
17#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
18struct NullHashable;
19
20#[derive(Debug, Clone, Copy)]
21struct RationalHashable(f64);
22
23impl PartialEq for RationalHashable {
24    #[inline]
25    fn eq(&self, other: &Self) -> bool {
26        Number::same_value(self.0, other.0)
27    }
28}
29
30impl Eq for RationalHashable {}
31
32impl Hash for RationalHashable {
33    #[inline]
34    fn hash<H: Hasher>(&self, state: &mut H) {
35        self.0.to_bits().hash(state);
36    }
37}
38
39impl Hash for JsValue {
40    fn hash<H: Hasher>(&self, state: &mut H) {
41        match self {
42            Self::Undefined => UndefinedHashable.hash(state),
43            Self::Null => NullHashable.hash(state),
44            Self::String(ref string) => string.hash(state),
45            Self::Boolean(boolean) => boolean.hash(state),
46            Self::Integer(integer) => RationalHashable(f64::from(*integer)).hash(state),
47            Self::BigInt(ref bigint) => bigint.hash(state),
48            Self::Rational(rational) => RationalHashable(*rational).hash(state),
49            Self::Symbol(ref symbol) => Hash::hash(symbol, state),
50            Self::Object(ref object) => std::ptr::hash(object.as_ref(), state),
51        }
52    }
53}
boa/value/hash.rs

boa/value/
hash.rs
