r2rust_core/
environment.rs

1/// Environment module for variable management.
2///
3/// This module provides a key-value store for variables and their values
4/// within the interpreter.
5
6use std::collections::HashMap;
7
8/// Represents the variable storage environment.
9pub struct Environment {
10    /// A mapping of variable names to their values.
11    variables: HashMap<String, f64>,
12}
13
14impl Default for Environment {
15    /// Provides a default implementation for creating an empty environment.
16    fn default() -> Self {
17        Self::new()
18    }
19}
20
21impl Environment {
22    /// Creates a new, empty environment.
23    pub fn new() -> Self {
24        Environment {
25            variables: HashMap::new(),
26        }
27    }
28
29    /// Retrieves the value of a variable.
30    ///
31    /// # Arguments
32    /// * `var` - The name of the variable.
33    ///
34    /// # Returns
35    /// An optional reference to the value of the variable.
36    pub fn get(&self, var: &str) -> Option<&f64> {
37        self.variables.get(var)
38    }
39
40    /// Sets a variable to a specific value.
41    ///
42    /// # Arguments
43    /// * `var` - The name of the variable.
44    /// * `value` - The value to assign.
45    pub fn set(&mut self, var: String, value: f64) {
46        self.variables.insert(var, value);
47    }
48}
r2rust_core/environment.rs

r2rust_core/
environment.rs
