From f3e50c6432b60e70db96ea568c3f770d7a14a745 Mon Sep 17 00:00:00 2001
From: Michael Miller <icy.arctic.fox@gmail.com>
Date: Thu, 28 Feb 2019 14:52:15 -0700
Subject: [PATCH] TruthyMatcher doesn't need to store a label

Extend from Matcher instead of ValueMatcher to bypass storing the label.
The "expected" value is still used, but is renamed to "truthy" and used
for the label.
---
 src/spectator/matchers/truthy_matcher.cr | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/spectator/matchers/truthy_matcher.cr b/src/spectator/matchers/truthy_matcher.cr
index 9d5feb3..3975416 100644
--- a/src/spectator/matchers/truthy_matcher.cr
+++ b/src/spectator/matchers/truthy_matcher.cr
@@ -8,19 +8,23 @@ module Spectator::Matchers
   #
   # Additionally, different matchers can be created
   # by using the `#<`, `#<=`, `#>`, `#>=`, `#==`, and `#!=` operators.
-  struct TruthyMatcher < ValueMatcher(Bool)
+  struct TruthyMatcher < Matcher
     # Creates the truthy matcher.
     # The *truthy* argument should be true to match "truthy" values,
     # and false to match "falsey" values.
-    def initialize(truthy : Bool)
-      super(truthy ? "truthy" : "falsey", truthy)
+    def initialize(@truthy : Bool)
+    end
+
+    # Textual representation of what the matcher expects.
+    def label
+      @truthy ? "truthy" : "falsey"
     end
 
     # Determines whether the matcher is satisfied with the value given to it.
     # True is returned if the match was successful, false otherwise.
     def match?(partial)
       # Cast value to truthy value and compare.
-      @expected == !!partial.actual
+      @truthy == !!partial.actual
     end
 
     # Determines whether the matcher is satisfied with the partial given to it.