tests/warn_truism.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import core::kernel
  16
  17 var a = true
  18 if a == true then end
  19 var b = a != false
  20 var c = ((a or b) == false) and b != true
  21
  22 # only warn the common case (not those)
  23 if true == a then end
  24 if a == (true) then end
  25
  26 # dont warn if operand 1 is not a bool
  27 var o: nullable Bool = a
  28 if o == true then end
  29 if o or else false then end