chem_parse/
ast_types.rs

1// TODO: change Node to be proper types once
2// we get variants as types, eventually
3/// A Node in the AST (abstract syntax tree)
4#[derive(Debug, PartialEq)]
5pub enum Node {
6    /// Chemical elements e.g. O2.
7    /// The number is the subscript, in this case 2
8    Element(u16, String),
9    /// Groups of elements or other groups (Polyatoms) e.g. (2FeO2)4
10    /// The number is the subscript, in this case 4
11    Group(u16, Vec<Node>),
12    /// Forumula Unit, a few elements and/or polyatoms eg 7(NH4)2SO4
13    /// This number is the coeffecient, in this case 7
14    ForumulaUnit(u16, Vec<Node>),
15    /// The reactants side (left) of yields (->)
16    Reactants(Vec<Node>),
17    /// The products side (right) of yeilds (->)
18    Products(Vec<Node>),
19    /// The whole equation
20    Equation(Box<Node>, Box<Node>),
21}
chem_parse/ast_types.rs

chem_parse/
ast_types.rs
