reifydb_type/value/
sumtype.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2025 ReifyDB
3
4use std::{
5	fmt,
6	fmt::{Display, Formatter},
7	ops::Deref,
8};
9
10use serde::{Deserialize, Deserializer, Serialize, Serializer, de::Visitor};
11
12#[repr(transparent)]
13#[derive(Debug, Copy, Clone, PartialOrd, PartialEq, Ord, Eq, Hash)]
14pub struct SumTypeId(pub u64);
15
16#[derive(Debug, Copy, Clone, PartialOrd, PartialEq, Ord, Eq, Hash, Serialize, Deserialize)]
17pub struct VariantRef {
18	pub sumtype_id: SumTypeId,
19	pub variant_tag: u8,
20}
21
22impl Display for SumTypeId {
23	fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
24		Display::fmt(&self.0, f)
25	}
26}
27
28impl Deref for SumTypeId {
29	type Target = u64;
30
31	fn deref(&self) -> &Self::Target {
32		&self.0
33	}
34}
35
36impl PartialEq<u64> for SumTypeId {
37	fn eq(&self, other: &u64) -> bool {
38		self.0.eq(other)
39	}
40}
41
42impl From<SumTypeId> for u64 {
43	fn from(value: SumTypeId) -> Self {
44		value.0
45	}
46}
47
48impl SumTypeId {
49	#[inline]
50	pub fn to_u64(self) -> u64 {
51		self.0
52	}
53}
54
55impl From<i32> for SumTypeId {
56	fn from(value: i32) -> Self {
57		Self(value as u64)
58	}
59}
60
61impl From<u64> for SumTypeId {
62	fn from(value: u64) -> Self {
63		Self(value)
64	}
65}
66
67impl Serialize for SumTypeId {
68	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
69	where
70		S: Serializer,
71	{
72		serializer.serialize_u64(self.0)
73	}
74}
75
76impl<'de> Deserialize<'de> for SumTypeId {
77	fn deserialize<D>(deserializer: D) -> Result<SumTypeId, D::Error>
78	where
79		D: Deserializer<'de>,
80	{
81		struct U64Visitor;
82
83		impl Visitor<'_> for U64Visitor {
84			type Value = SumTypeId;
85
86			fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
87				formatter.write_str("an unsigned 64-bit number")
88			}
89
90			fn visit_u64<E>(self, value: u64) -> Result<Self::Value, E> {
91				Ok(SumTypeId(value))
92			}
93		}
94
95		deserializer.deserialize_u64(U64Visitor)
96	}
97}
reifydb_type/value/sumtype.rs

reifydb_type/value/
sumtype.rs
