gitql_ast/types/
datetime.rs

1use std::any::Any;
2
3use crate::expression::Expr;
4use crate::expression::StringExpr;
5use crate::format_checker::is_valid_datetime_format;
6use crate::types::array::ArrayType;
7use crate::types::date::DateType;
8
9use super::base::DataType;
10
11#[derive(Clone)]
12pub struct DateTimeType;
13
14impl DataType for DateTimeType {
15    fn literal(&self) -> String {
16        "DateTime".to_string()
17    }
18
19    fn equals(&self, other: &Box<dyn DataType>) -> bool {
20        other.is_any() || other.is_date_time() || other.is_variant_with(|t| t.is_date_time())
21    }
22
23    fn as_any(&self) -> &dyn Any {
24        self
25    }
26
27    fn can_perform_eq_op_with(&self) -> Vec<Box<dyn DataType>> {
28        vec![Box::new(DateTimeType)]
29    }
30
31    fn can_perform_group_eq_op_with(&self) -> Vec<Box<dyn DataType>> {
32        vec![Box::new(ArrayType::new(Box::new(DateTimeType)))]
33    }
34
35    fn can_perform_bang_eq_op_with(&self) -> Vec<Box<dyn DataType>> {
36        vec![Box::new(DateTimeType)]
37    }
38
39    fn can_perform_group_bang_eq_op_with(&self) -> Vec<Box<dyn DataType>> {
40        vec![Box::new(ArrayType::new(Box::new(DateTimeType)))]
41    }
42
43    fn can_perform_gt_op_with(&self) -> Vec<Box<dyn DataType>> {
44        vec![Box::new(DateTimeType)]
45    }
46
47    fn can_perform_group_gt_op_with(&self) -> Vec<Box<dyn DataType>> {
48        vec![Box::new(ArrayType::new(Box::new(DateTimeType)))]
49    }
50
51    fn can_perform_gte_op_with(&self) -> Vec<Box<dyn DataType>> {
52        vec![Box::new(DateTimeType)]
53    }
54
55    fn can_perform_group_gte_op_with(&self) -> Vec<Box<dyn DataType>> {
56        vec![Box::new(ArrayType::new(Box::new(DateTimeType)))]
57    }
58
59    fn can_perform_lt_op_with(&self) -> Vec<Box<dyn DataType>> {
60        vec![Box::new(DateTimeType)]
61    }
62
63    fn can_perform_group_lt_op_with(&self) -> Vec<Box<dyn DataType>> {
64        vec![Box::new(ArrayType::new(Box::new(DateTimeType)))]
65    }
66
67    fn can_perform_lte_op_with(&self) -> Vec<Box<dyn DataType>> {
68        vec![Box::new(DateTimeType)]
69    }
70
71    fn can_perform_group_lte_op_with(&self) -> Vec<Box<dyn DataType>> {
72        vec![Box::new(ArrayType::new(Box::new(DateTimeType)))]
73    }
74
75    fn has_implicit_cast_from(&self, expr: &Box<dyn Expr>) -> bool {
76        if let Some(string_expr) = expr.as_any().downcast_ref::<StringExpr>() {
77            return is_valid_datetime_format(&string_expr.value);
78        }
79        false
80    }
81
82    fn can_perform_explicit_cast_op_to(&self) -> Vec<Box<dyn DataType>> {
83        vec![Box::new(DateType)]
84    }
85}
gitql_ast/types/datetime.rs

gitql_ast/types/
datetime.rs
