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Starting lambdas

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greg 2017-12-10 03:58:44 -08:00
parent 254f2ae4b8
commit 60644ba3d7
1 changed files with 7 additions and 1 deletions
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8
src/rukka_lang/mod.rs
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@ -22,6 +22,7 @@ impl EvaluatorState {
self.vars.get(var) self.vars.get(var)
} }
fn push_env(&mut self) { fn push_env(&mut self) {
} }
fn pop_env(&mut self) { fn pop_env(&mut self) {
@ -124,7 +125,12 @@ impl EvaluatorState {
}, },
_ => return Err(format!("Bad assignment")), _ => return Err(format!("Bad assignment")),
} }
"lambda" => unimplemented!(), "lambda" => match operands {
Cons(box paramlist, box Cons(box formalexp, box Nil)) => {
unimplemented!() //needs to return an abstract object
},
_ => return Err(format!("Bad lambda expression")),
},
"if" => match operands { "if" => match operands {
Cons(box test, box body) => { Cons(box test, box body) => {
let truth_value = test.truthy(); let truth_value = test.truthy();