gitql_ast/types/
optional.rs

1use std::any::Any;
2
3use super::base::DataType;
4
5#[derive(Clone)]
6pub struct OptionType {
7    pub base: Option<Box<dyn DataType>>,
8}
9
10impl OptionType {
11    pub fn new(base: Option<Box<dyn DataType>>) -> Self {
12        OptionType { base }
13    }
14}
15
16impl DataType for OptionType {
17    fn literal(&self) -> String {
18        if let Some(base) = &self.base {
19            return format!("{}?", base.literal());
20        }
21        "None".to_string()
22    }
23
24    fn equals(&self, other: &Box<dyn DataType>) -> bool {
25        if other.is_any() {
26            return true;
27        }
28        if let Some(base) = &self.base {
29            return base.equals(other);
30        }
31        true
32    }
33
34    fn as_any(&self) -> &dyn Any {
35        self
36    }
37}
gitql_ast/types/optional.rs

gitql_ast/types/
optional.rs
