brainfuck: Remove warnings.

Signed-off-by: Jean-Christophe Beaupré <jcbrinfo@users.noreply.github.com>

diff --git a/contrib/brainfuck/brainfuck.nit b/contrib/brainfuck/brainfuck.nit
index b614776..c35b08a 100644 (file)
--- a/contrib/brainfuck/brainfuck.nit
+++ b/contrib/brainfuck/brainfuck.nit
@@ -16,7 +16,7 @@
 module brainfuck
 
 # Interpreter for Brainfuck source code.
-class BFInterpret
+class BFInterpreter
        # Data cells
        var dr = new Array[Char]
        # Data pointer
@@ -28,16 +28,19 @@ class BFInterpret
        var program: String
 
        # Contains the set of valid instructions, used in next
-       var valid_instr: Set[Char]
+       var valid_instr: Set[Char] is noinit
 
-       # Starts interpretation of file `filename`
-       init(filename: String) do
-               var ifs = new IFStream.open(filename.simplify_path)
+       # Create an interpreter for `program`.
+       init do
                valid_instr = new HashSet[Char]
                valid_instr.add_all "><[].,+-".chars
                dr.add 0.ascii
-               program = ifs.read_all
-               start
+       end
+
+       # Create an interpreter for the file located at `path`.
+       init from_file(path: String) do
+               var ifs = new IFStream.open(path)
+               init(ifs.read_all)
        end
 
        # Starts the interpretation of the loaded program
@@ -131,4 +134,4 @@ class BFInterpret
        end
 end
 
-var i = new BFInterpret(args[0])
+new BFInterpreter.from_file(args[0]).start