update result_type

src/StringDistances.jl

@@ -42,6 +42,11 @@ include("qgram.jl")
 include("compare.jl")
 include("find.jl")
 
+function result_type(m::Union{Hamming, Jaro, Levenshtein, DamerauLevenshtein, RatcliffObershelp, AbstractQGramDistance, Winkler, Partial, TokenSort, TokenSet, TokenMax}, a::AbstractString, b::AbstractString)
+    typeof(evaluate(m, oneunit(a), oneunit(b)))
+end
+
+
 end
 
 ##############################################################################

src/edit.jl

@@ -276,10 +276,3 @@ function matching_blocks!(x::Set{Tuple{Int, Int, Int}}, s1::AbstractString, s2::
     matching_blocks!(x, s1after, s2after, len1 - (a[1] + a[3]) + 1, len2 - (a[2] + a[3]) + 1, start1 + a[1] + a[3] - 1, start2 + a[2] + a[3] - 1)
     return x
 end
-
-const string_metrics = (Hamming, Jaro, Levenshtein, DamerauLevenshtein, RatcliffObershelp)
-const UnionStringMetrics = Union{string_metrics...}
-
-function result_type(m::UnionStringMetrics, a::AbstractString, b::AbstractString)
-    return typeof(evaluate(m, oneunit(a), oneunit(b)))
-end

src/qgram.jl

@@ -290,7 +290,3 @@ function evaluate(dist::Overlap, count_dict)
 	end
 	1.0 - nintersect / min(ndistinct1, ndistinct2)
 end
-
-# result types for QGram distances
-result_type(m::AbstractQGramDistance, a::AbstractString, b::AbstractString) =
-	typeof(evaluate(m, oneunit(a), oneunit(b)))