From 6301e0b6374cecc5599665be14d6ddc6a31ce1e8 Mon Sep 17 00:00:00 2001 From: Joel Martin Date: Wed, 23 Apr 2014 21:59:50 -0500 Subject: All: TCO let* and quasiquote. --- python/step6_file.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'python/step6_file.py') diff --git a/python/step6_file.py b/python/step6_file.py index 764eb53..9d84d1f 100644 --- a/python/step6_file.py +++ b/python/step6_file.py @@ -45,7 +45,9 @@ def EVAL(ast, env): let_env = Env(env) for i in range(0, len(a1), 2): let_env.set(a1[i], EVAL(a1[i+1], let_env)) - return EVAL(a2, let_env) + ast = a2 + env = let_env + # Continue loop (TCO) elif "do" == a0: eval_ast(ast[1:-1], env) ast = ast[-1] -- cgit v1.2.3