reifydb_core/value/encoded/
u128.rs

1// Copyright (c) reifydb.com 2025
2// This file is licensed under the AGPL-3.0-or-later, see license.md file
3
4use std::ptr;
5
6use reifydb_type::Type;
7
8use crate::value::encoded::{EncodedValues, EncodedValuesLayout};
9
10impl EncodedValuesLayout {
11	pub fn set_u128(&self, row: &mut EncodedValues, index: usize, value: impl Into<u128>) {
12		let field = &self.fields[index];
13		debug_assert!(row.len() >= self.total_static_size());
14		debug_assert_eq!(field.r#type, Type::Uint16);
15		row.set_valid(index, true);
16		unsafe {
17			ptr::write_unaligned(row.make_mut().as_mut_ptr().add(field.offset) as *mut u128, value.into())
18		}
19	}
20
21	pub fn get_u128(&self, row: &EncodedValues, index: usize) -> u128 {
22		let field = &self.fields[index];
23		debug_assert!(row.len() >= self.total_static_size());
24		debug_assert_eq!(field.r#type, Type::Uint16);
25		unsafe { (row.as_ptr().add(field.offset) as *const u128).read_unaligned() }
26	}
27
28	pub fn try_get_u128(&self, row: &EncodedValues, index: usize) -> Option<u128> {
29		if row.is_defined(index) {
30			Some(self.get_u128(row, index))
31		} else {
32			None
33		}
34	}
35}
36
37#[cfg(test)]
38mod tests {
39	use reifydb_type::Type;
40
41	use crate::value::encoded::EncodedValuesLayout;
42
43	#[test]
44	fn test_set_get_u128() {
45		let layout = EncodedValuesLayout::new(&[Type::Uint16]);
46		let mut row = layout.allocate();
47		layout.set_u128(&mut row, 0, 340282366920938463463374607431768211455u128);
48		assert_eq!(layout.get_u128(&row, 0), 340282366920938463463374607431768211455u128);
49	}
50
51	#[test]
52	fn test_try_get_u128() {
53		let layout = EncodedValuesLayout::new(&[Type::Uint16]);
54		let mut row = layout.allocate();
55
56		assert_eq!(layout.try_get_u128(&row, 0), None);
57
58		layout.set_u128(&mut row, 0, 340282366920938463463374607431768211455u128);
59		assert_eq!(layout.try_get_u128(&row, 0), Some(340282366920938463463374607431768211455u128));
60	}
61
62	#[test]
63	fn test_extremes() {
64		let layout = EncodedValuesLayout::new(&[Type::Uint16]);
65		let mut row = layout.allocate();
66
67		layout.set_u128(&mut row, 0, u128::MAX);
68		assert_eq!(layout.get_u128(&row, 0), u128::MAX);
69
70		let mut row2 = layout.allocate();
71		layout.set_u128(&mut row2, 0, u128::MIN);
72		assert_eq!(layout.get_u128(&row2, 0), u128::MIN);
73
74		let mut row3 = layout.allocate();
75		layout.set_u128(&mut row3, 0, 0u128);
76		assert_eq!(layout.get_u128(&row3, 0), 0u128);
77	}
78
79	#[test]
80	fn test_very_large_values() {
81		let layout = EncodedValuesLayout::new(&[Type::Uint16]);
82
83		let test_values = [
84			0u128,
85			1u128,
86			99999999999999999999999999999999999999u128,
87			170141183460469231731687303715884105727u128, // i128::MAX as u128
88			170141183460469231731687303715884105728u128, // i128::MAX + 1
89			300000000000000000000000000000000000000u128,
90			340282366920938463463374607431768211454u128,
91			340282366920938463463374607431768211455u128, // u128::MAX
92		];
93
94		for value in test_values {
95			let mut row = layout.allocate();
96			layout.set_u128(&mut row, 0, value);
97			assert_eq!(layout.get_u128(&row, 0), value);
98		}
99	}
100
101	#[test]
102	fn test_powers_of_two() {
103		let layout = EncodedValuesLayout::new(&[Type::Uint16]);
104
105		let powers = [
106			1u128, 2u128, 4u128, 8u128, 16u128, 32u128, 64u128, 128u128, 256u128, 512u128, 1024u128,
107			2048u128, 4096u128, 8192u128, 16384u128, 32768u128, 65536u128,
108		];
109
110		for power in powers {
111			let mut row = layout.allocate();
112			layout.set_u128(&mut row, 0, power);
113			assert_eq!(layout.get_u128(&row, 0), power);
114		}
115	}
116
117	#[test]
118	fn test_ipv6_addresses() {
119		let layout = EncodedValuesLayout::new(&[Type::Uint16]);
120
121		// Test values representing IPv6 addresses as u128
122		let ipv6_values = [
123			0u128,                                       // ::0
124			1u128,                                       // ::1 (loopback)
125			281470681743360u128,                         // ::ffff:0:0 (IPv4-mapped prefix)
126			338953138925153547590470800371487866880u128, // Example IPv6
127		];
128
129		for ipv6 in ipv6_values {
130			let mut row = layout.allocate();
131			layout.set_u128(&mut row, 0, ipv6);
132			assert_eq!(layout.get_u128(&row, 0), ipv6);
133		}
134	}
135
136	#[test]
137	fn test_uuid_values() {
138		let layout = EncodedValuesLayout::new(&[Type::Uint16]);
139
140		// Test values that could represent UUIDs as u128
141		let uuid_values = [
142			123456789012345678901234567890123456789u128,
143			123456789012345678901234567890123456789u128,
144			111111111111111111111111111111111111111u128,
145		];
146
147		for uuid_val in uuid_values {
148			let mut row = layout.allocate();
149			layout.set_u128(&mut row, 0, uuid_val);
150			assert_eq!(layout.get_u128(&row, 0), uuid_val);
151		}
152	}
153
154	#[test]
155	fn test_mixed_with_other_types() {
156		let layout = EncodedValuesLayout::new(&[Type::Uint16, Type::Boolean, Type::Uint16]);
157		let mut row = layout.allocate();
158
159		let large_value1 = 200000000000000000000000000000000000000u128;
160		let large_value2 = 150000000000000000000000000000000000000u128;
161
162		layout.set_u128(&mut row, 0, large_value1);
163		layout.set_bool(&mut row, 1, true);
164		layout.set_u128(&mut row, 2, large_value2);
165
166		assert_eq!(layout.get_u128(&row, 0), large_value1);
167		assert_eq!(layout.get_bool(&row, 1), true);
168		assert_eq!(layout.get_u128(&row, 2), large_value2);
169	}
170
171	#[test]
172	fn test_undefined_handling() {
173		let layout = EncodedValuesLayout::new(&[Type::Uint16, Type::Uint16]);
174		let mut row = layout.allocate();
175
176		let value = 340282366920938463463374607431768211455u128;
177		layout.set_u128(&mut row, 0, value);
178
179		assert_eq!(layout.try_get_u128(&row, 0), Some(value));
180		assert_eq!(layout.try_get_u128(&row, 1), None);
181
182		layout.set_undefined(&mut row, 0);
183		assert_eq!(layout.try_get_u128(&row, 0), None);
184	}
185}
reifydb_core/value/encoded/u128.rs

reifydb_core/value/encoded/
u128.rs
