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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
use ordered_float::OrderedFloat;
use serde::{Deserialize, Serialize};
use std::cmp::Ordering;
use std::hash::{Hash, Hasher};
use std::ops::Deref;
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
pub struct TrialId(u64);
impl TrialId {
pub const fn new(id: u64) -> Self {
Self(id)
}
pub const fn get(self) -> u64 {
self.0
}
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NextTrial {
pub id: TrialId,
pub params: Params,
pub next_step: Option<u64>,
}
impl NextTrial {
pub fn evaluated(&self, values: Values, current_step: u64) -> EvaluatedTrial {
EvaluatedTrial {
id: self.id,
values,
current_step,
}
}
pub fn unevaluable(&self) -> EvaluatedTrial {
self.evaluated(Values::new(Vec::new()), self.next_step.unwrap_or(0))
}
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EvaluatedTrial {
pub id: TrialId,
pub values: Values,
pub current_step: u64,
}
#[derive(Debug)]
pub struct IdGen {
next: u64,
}
impl IdGen {
pub const fn new() -> Self {
Self { next: 0 }
}
pub const fn from_next_id(next: u64) -> Self {
Self { next }
}
pub fn generate(&mut self) -> TrialId {
let id = TrialId(self.next);
self.next += 1;
id
}
pub fn peek_id(&self) -> TrialId {
TrialId(self.next)
}
}
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct Params(#[serde(with = "nullable_f64_vec")] Vec<f64>);
impl Params {
pub const fn new(params: Vec<f64>) -> Self {
Self(params)
}
pub fn into_vec(self) -> Vec<f64> {
self.0
}
pub fn get(&self) -> &[f64] {
&self.0
}
fn ordered_floats<'a>(&'a self) -> impl 'a + Iterator<Item = OrderedFloat<f64>> {
self.0.iter().copied().map(OrderedFloat)
}
}
impl PartialEq for Params {
fn eq(&self, other: &Self) -> bool {
self.ordered_floats().eq(other.ordered_floats())
}
}
impl Eq for Params {}
impl Hash for Params {
fn hash<H: Hasher>(&self, hasher: &mut H) {
for x in self.ordered_floats() {
x.hash(hasher);
}
}
}
impl Deref for Params {
type Target = [f64];
fn deref(&self) -> &Self::Target {
&self.0
}
}
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct Values(Vec<f64>);
impl Values {
pub const fn new(values: Vec<f64>) -> Self {
Self(values)
}
pub fn into_vec(self) -> Vec<f64> {
self.0
}
fn ordered_floats<'a>(&'a self) -> impl 'a + Iterator<Item = OrderedFloat<f64>> {
self.0.iter().copied().map(OrderedFloat)
}
}
impl PartialEq for Values {
fn eq(&self, other: &Self) -> bool {
self.ordered_floats().eq(other.ordered_floats())
}
}
impl PartialOrd for Values {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
let mut ord = None;
for (a, b) in self.0.iter().zip(other.0.iter()) {
if ord == None {
ord = a.partial_cmp(b);
if ord == None {
return None;
}
} else if ord != a.partial_cmp(b) {
return None;
}
}
if ord == None {
Some(Ordering::Equal)
} else {
ord
}
}
}
impl Eq for Values {}
impl Hash for Values {
fn hash<H: Hasher>(&self, hasher: &mut H) {
for x in self.ordered_floats() {
x.hash(hasher);
}
}
}
impl Deref for Values {
type Target = [f64];
fn deref(&self) -> &Self::Target {
&self.0
}
}
mod nullable_f64_vec {
use serde::{Deserialize, Deserializer, Serialize, Serializer};
use std::f64::NAN;
pub fn deserialize<'de, D>(deserializer: D) -> Result<Vec<f64>, D::Error>
where
D: Deserializer<'de>,
{
let v: Vec<Option<f64>> = Deserialize::deserialize(deserializer)?;
Ok(v.into_iter()
.map(|v| if let Some(v) = v { v } else { NAN })
.collect())
}
pub fn serialize<S>(v: &[f64], serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let v = v
.iter()
.map(|v| if v.is_finite() { Some(*v) } else { None })
.collect::<Vec<_>>();
v.serialize(serializer)
}
}