anchor.diff:    }
   
     Float32List toArray(bool transpose) {
  -    if(this.array == null) this.array = new Float32List(9);
  +    //if(this.array == null) this.array = new Float32List(9);
       Float32List array =this.array;
   
       if (transpose) {
  
positive.code: class Matrix {
    double a = 1.0, b = 0.0, c = 0.0, d = 1.0, tx = 0.0, ty = 0.0;
  
    Float32List array =null;
  
    double operator[] (int i){
      if(this.array == null) this.array = new Float32List(9);
      return array[i];
    }
  
  
negative.code:     return Float32List;
  }
  
  
  Type Matrix2 = determineMatrixArrayType();
  
  
  