29 lines
602 B
Rust
29 lines
602 B
Rust
use std::rc::Rc;
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#[derive(Debug /*/*, debug2::Debug*/*/, PartialEq)]
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crate enum Tree {
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Leaf(Literal),
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Define(String, Box<Tree>),
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Set(String, Box<Tree>),
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If(Box<[Tree; 3]>),
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// Its easier to box the lambdas in the parser than the vm, as
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// here we see all of them exactly once
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Func(Rc<Func>),
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Branch(Vec<Tree>),
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}
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#[derive(Debug /*/*, debug2::Debug*/*/, PartialEq)]
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crate struct Func {
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crate args: Vec<String>,
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crate body: Vec<Tree>,
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}
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#[derive(Debug /*/*, debug2::Debug*/*/, PartialEq)]
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crate enum Literal {
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Sym(String),
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Num(f64),
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Bool(bool),
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}
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