lucene_query_syntax/
ast.rs

1#[derive(Debug, Clone, Eq, PartialEq)]
2pub enum Operator {
3    And,
4    Or,
5}
6
7#[derive(Debug, Clone, Eq, PartialEq)]
8pub enum Node {
9    Default(Value),
10    Named { key: String, value: Value },
11    Expression(String),
12    Negated(Box<Node>),
13    Combined {
14        left: Box<Node>,
15        right: Box<Node>,
16        operator: Operator,
17    },
18}
19
20impl Node {
21    pub fn visit<T>(self, visitor: impl Fn(Node, &dyn Fn(Box<Node>) -> T) -> T) -> T {
22        #[inline(always)]
23        fn inner<T>(node: Node, visitor: &dyn Fn(Node, &dyn Fn(Box<Node>) -> T) -> T) -> T {
24            visitor(node, &|node| node.visit(visitor))
25        }
26        
27        inner(self, &visitor)
28    }
29}
30
31#[derive(Debug, Clone, Eq, PartialEq)]
32pub enum Primitive {
33    Text(String),
34    Integer(i64),
35    Boolean(bool),
36}
37
38impl From<String> for Primitive {
39    fn from(value: String) -> Self {
40        Self::Text(value)
41    }
42}
43
44impl From<i64> for Primitive {
45    fn from(value: i64) -> Self {
46        Self::Integer(value)
47    }
48}
49
50impl From<bool> for Primitive {
51    fn from(value: bool) -> Self {
52        Self::Boolean(value)
53    }
54}
55
56#[derive(Debug, Clone, Eq, PartialEq)]
57pub enum Value {
58    Primitive(Primitive),
59    Range(Boundary, Boundary),
60}
61
62impl<T: Into<Primitive>> From<T> for Value {
63    fn from(value: T) -> Self {
64        Value::Primitive(value.into())
65    }
66}
67
68#[derive(Debug, Clone, Eq, PartialEq)]
69pub enum BoundaryKind {
70    Inclusive,
71    Exclusive,
72}
73
74#[derive(Debug, Clone, Eq, PartialEq)]
75pub struct Boundary {
76    pub value: i64,
77    pub kind: BoundaryKind,
78}
lucene_query_syntax/ast.rs

lucene_query_syntax/
ast.rs
