diff options
| -rw-r--r-- | spec/util_iterators_spec.lua | 8 | ||||
| -rw-r--r-- | util/iterators.lua | 3 |
2 files changed, 10 insertions, 1 deletions
diff --git a/spec/util_iterators_spec.lua b/spec/util_iterators_spec.lua index 4cf6f19d..a4b85884 100644 --- a/spec/util_iterators_spec.lua +++ b/spec/util_iterators_spec.lua @@ -10,6 +10,14 @@ describe("util.iterators", function () end assert.same(output, expect); end); + it("should work with only a single iterator", function () + local expect = { "a", "b", "c" }; + local output = {}; + for x in iter.join(iter.values({"a", "b", "c"})) do + table.insert(output, x); + end + assert.same(output, expect); + end); end); describe("sorted_pairs", function () diff --git a/util/iterators.lua b/util/iterators.lua index 4529697a..eb4c54af 100644 --- a/util/iterators.lua +++ b/util/iterators.lua @@ -240,7 +240,8 @@ function join_methods:prepend(f, s, var) end function it.join(f, s, var) - return setmetatable({ {f, s, var} }, join_mt); + local t = setmetatable({ {f, s, var} }, join_mt); + return t, { t, 1 }; end return it; |