Add note on visitors

2019-09-26 01:32:33 -07:00
parent 39bb175722
commit 7533c69c49
1 changed files with 2 additions and 0 deletions
--- a/TODO.md
+++ b/TODO.md
@@ -6,6 +6,8 @@
 -implement field access
 - standardize on an error type that isn't String
 -implement a visitor pattern for the use of scope_resolver
+  - maybe implement this twice: 1) the value-returning, no-default one in the haoyi blogpost,
+                                2) the non-value-returning, default one like in rustc

 ## Reduction
 - make a good type for actual language builtins to avoid string comparisons