opal · May 30, 2015 · May 30, 2015
Showing with 21 additions and 7 deletions.

+21 −0 opal/corelib/array.rb

+0 −7 spec/filters/bugs/array.rb
diff --git a/opal/corelib/array.rb b/opal/corelib/array.rb
@@ -1699,6 +1699,27 @@ def to_a
 
   alias to_ary to_a
 
+  def to_h
+    %x{
+      var i, len = self.length, ary, key, val, hash = #{{}};
+
+      for (i = 0; i < len; i++) {
+        ary = #{Opal.coerce_to?(`self[i]`, Array, :to_ary)};
+        if (!ary.$$is_array) {
+          #{raise TypeError, "wrong element type #{`ary`.class} at #{`i`} (expected array)"}
+        }
+        if (ary.length !== 2) {
+          #{raise ArgumentError, "wrong array length at #{`i`} (expected 2, was #{`ary`.length})"}
+        }
+        key = ary[0];
+        val = ary[1];
+        hash.$store(key, val);
+      }
+
+      return hash;
+    }
+  end
+
   alias to_s inspect
 
   def transpose

diff --git a/spec/filters/bugs/array.rb b/spec/filters/bugs/array.rb
@@ -154,11 +154,4 @@
 
   fails "Array#first raises a RangeError when count is a Bignum"
   fails "Array#hash calls to_int on result of calling hash on each element"
-  fails "Array#to_h converts empty array to empty hash"
-  fails "Array#to_h converts [key, value] pairs to a hash"
-  fails "Array#to_h uses the last value of a duplicated key"
-  fails "Array#to_h calls #to_ary on contents"
-  fails "Array#to_h raises TypeError if an element is not an array"
-  fails "Array#to_h raises ArgumentError if an element is not a [key, value] pair"
-  fails "Array#to_h does not accept arguments"
 end