qail_core/ast/
values.rs

1use crate::ast::Qail;
2use serde::{Deserialize, Serialize};
3use uuid::Uuid;
4
5/// Time interval unit for duration expressions
6#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
7pub enum IntervalUnit {
8    Second,
9    Minute,
10    Hour,
11    Day,
12    Week,
13    Month,
14    Year,
15}
16
17impl std::fmt::Display for IntervalUnit {
18    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
19        match self {
20            IntervalUnit::Second => write!(f, "seconds"),
21            IntervalUnit::Minute => write!(f, "minutes"),
22            IntervalUnit::Hour => write!(f, "hours"),
23            IntervalUnit::Day => write!(f, "days"),
24            IntervalUnit::Week => write!(f, "weeks"),
25            IntervalUnit::Month => write!(f, "months"),
26            IntervalUnit::Year => write!(f, "years"),
27        }
28    }
29}
30
31/// A value in a condition.
32#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
33pub enum Value {
34    Null,
35    Bool(bool),
36    Int(i64),
37    Float(f64),
38    String(String),
39    Param(usize),
40    /// Named parameter reference (:name, :id, etc.)
41    NamedParam(String),
42    Function(String),
43    Array(Vec<Value>),
44    Subquery(Box<Qail>),
45    Column(String),
46    Uuid(Uuid),
47    NullUuid,
48    /// Time interval (e.g., 24 hours, 7 days)
49    Interval { amount: i64, unit: IntervalUnit },
50    Timestamp(String),
51    /// Binary data (bytea)
52    Bytes(Vec<u8>),
53    /// AST Expression (for complex expression comparisons like col > NOW() - INTERVAL)
54    Expr(Box<crate::ast::Expr>),
55}
56
57impl std::fmt::Display for Value {
58    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
59        match self {
60            Value::Null => write!(f, "NULL"),
61            Value::Bool(b) => write!(f, "{}", b),
62            Value::Int(n) => write!(f, "{}", n),
63            Value::Float(n) => write!(f, "{}", n),
64            Value::String(s) => write!(f, "'{}'", s),
65            Value::Param(n) => write!(f, "${}", n),
66            Value::NamedParam(name) => write!(f, ":{}", name),
67            Value::Function(s) => write!(f, "{}", s),
68            Value::Array(arr) => {
69                write!(f, "(")?;
70                for (i, v) in arr.iter().enumerate() {
71                    if i > 0 {
72                        write!(f, ", ")?;
73                    }
74                    write!(f, "{}", v)?;
75                }
76                write!(f, ")")
77            }
78            Value::Subquery(_) => write!(f, "(SUBQUERY)"),
79            Value::Column(s) => write!(f, "{}", s),
80            Value::Uuid(u) => write!(f, "'{}'", u),
81            Value::NullUuid => write!(f, "NULL"),
82            Value::Interval { amount, unit } => write!(f, "INTERVAL '{} {}'", amount, unit),
83            Value::Timestamp(ts) => write!(f, "'{}'", ts),
84            Value::Bytes(bytes) => {
85                write!(f, "'\\x")?;
86                for byte in bytes {
87                    write!(f, "{:02x}", byte)?;
88                }
89                write!(f, "'")
90            }
91            Value::Expr(expr) => write!(f, "{}", expr),
92        }
93    }
94}
95
96impl From<bool> for Value {
97    fn from(b: bool) -> Self {
98        Value::Bool(b)
99    }
100}
101
102impl From<i32> for Value {
103    fn from(n: i32) -> Self {
104        Value::Int(n as i64)
105    }
106}
107
108impl From<i64> for Value {
109    fn from(n: i64) -> Self {
110        Value::Int(n)
111    }
112}
113
114impl From<f64> for Value {
115    fn from(n: f64) -> Self {
116        Value::Float(n)
117    }
118}
119
120impl From<&str> for Value {
121    fn from(s: &str) -> Self {
122        Value::String(s.to_string())
123    }
124}
125
126impl From<String> for Value {
127    fn from(s: String) -> Self {
128        Value::String(s)
129    }
130}
131
132impl From<Uuid> for Value {
133    fn from(u: Uuid) -> Self {
134        Value::Uuid(u)
135    }
136}
137
138impl From<Option<Uuid>> for Value {
139    fn from(opt: Option<Uuid>) -> Self {
140        match opt {
141            Some(u) => Value::Uuid(u),
142            None => Value::NullUuid,
143        }
144    }
145}
qail_core/ast/values.rs

qail_core/ast/
values.rs
