experiment/lambda
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look up names again

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Michael Zhang 2018-02-20 05:23:05 -06:00
parent e82e05131c
commit 2e46c8cacf
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1 changed files with 6 additions and 1 deletions
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lambda.ml
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@ -19,6 +19,11 @@ let rec string_of_term (t: Types.term) =
"(" ^ (string_of_term t1) ^ " " ^ (string_of_term t2) ^ ")"
| TmVar(x) -> x
let rec string_of_term_in_ctx ctx tm =
match ctx with
| [] -> (string_of_term tm)
| (n, t)::r -> if t = tm then n else (string_of_term_in_ctx r tm)
let rec string_of_ctx (c: Types.context) =
match c with
| [] -> ""
@ -89,7 +94,7 @@ let _ =
match x with
| Types.Term t ->
let (ctx', r) = eval (ctx, t) in
print_endline (string_of_term r); flush stdout;
print_endline (string_of_term_in_ctx ctx r); flush stdout;
loop ctx'
| Types.Assign (n, t) ->
let (ctx', r) = eval (ctx, t) in