type Point is {int x, int y} where x < y
method test(&Point ptr):
int x = ptr->x
// break invariant
ptr->x = 1
// restore invariant
ptr->x = x
public export method test():
test(new {x:1,y:2})
test(new {x:0,y:1})
This fails statically because of the temporary invariant failure on line 6. However, the interpreter misses this.
Unfortunately, its not entirely clear to me how we are supposed to manage expected invariants like this? In this case, we can just examine the contents of ptr.
Test
001177:This fails statically because of the temporary invariant failure on line
6. However, the interpreter misses this.Unfortunately, its not entirely clear to me how we are supposed to manage expected invariants like this? In this case, we can just examine the contents of
ptr.