diff options
Diffstat (limited to 'lib/equal.fnl')
-rw-r--r-- | lib/equal.fnl | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/equal.fnl b/lib/equal.fnl new file mode 100644 index 0000000..cc34ada --- /dev/null +++ b/lib/equal.fnl @@ -0,0 +1,22 @@ +;; thanks: +;; https://gist.github.com/sapphyrus/fd9aeb871e3ce966cc4b0b969f62f539 +;; and antifennel +(fn deep-equals [o1 o2 ignore-mt] + (when (= o1 o2) (lua "return true")) + (local o1-type (type o1)) + (local o2-type (type o2)) + (when (not= o1-type o2-type) (lua "return false")) + (when (not= o1-type :table) (lua "return false")) + (when (not ignore-mt) + (local mt1 (getmetatable o1)) + (when (and mt1 mt1.__eq) + (let [___antifnl_rtn_1___ (= o1 o2)] (lua "return ___antifnl_rtn_1___")))) + (each [key1 value1 (pairs o1)] + (local value2 (. o2 key1)) + (when (or (= value2 nil) (= (deep-equals value1 value2 ignore-mt) false)) + (lua "return false"))) + (each [key2 _ (pairs o2)] + (when (= (. o1 key2) nil) (lua "return false"))) + true) + +{:equal deep-equals} |