From e199329cbb23352fbd18c2eb2586b564ad9b206c Mon Sep 17 00:00:00 2001
From: Matthew Hall <hallmatthew314@gmail.com>
Date: Wed, 8 Mar 2023 20:55:04 +1300
Subject: Add Parser#recover

---
 src/parcom.cr | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

(limited to 'src')

diff --git a/src/parcom.cr b/src/parcom.cr
index 87c73c5..a2b8b92 100644
--- a/src/parcom.cr
+++ b/src/parcom.cr
@@ -74,6 +74,10 @@ module Parcom
     def map(f : V -> U) : Map(T, V, U) forall U
       Map.new(self, f)
     end
+
+    def recover(default : T)
+      Recover.new(self, default)
+    end
   end
 
   class Flunk(T, V) < Parser(T, V)
@@ -209,12 +213,6 @@ module Parcom
     def parse(tokens : TokenStream(T)) : Result(T, V?)
       r = @p.parse?(tokens)
 
-      if r.nil?
-        Result.new(tokens, nil)
-      else
-        Result.new(r.tokens, r.value || nil)
-      end
-
       new_tokens = r.nil? ? tokens : r.tokens
       new_value = r.nil? ? nil : r.value
       Result.new(new_tokens, new_value)
-- 
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