Support [] and []= methods

README.md

@@ -116,7 +116,6 @@ crystal spec ./spec/kiwi/file_store_spec.cr
 
 # Roadmap
 
-* Support `#[]=`, `#[]` methods
 * Write `Why?` section
   * Cache use case
   * Easy switch to a different store.

spec/spec_helper.cr

@@ -22,6 +22,10 @@ macro behaves_like_store(store_definition)
     store.get("key2").should eq "value2"
     store.get("key3").should eq "value3"
 
+    # []= and [] aliases
+    store["key1"] = "abc"
+    store["key1"].should eq "abc"
+
     # clear
     store.clear.should eq store
     store.get("key1").should eq nil

src/kiwi/store.cr

@@ -4,5 +4,13 @@ module Kiwi
     abstract def set(key : String, val : String) : String
     abstract def delete(key : String) : String|Nil
     abstract def clear : Store
+
+    def []=(*args)
+      set(*args)
+    end
+
+    def [](*args)
+      get(*args)
+    end
   end
 end