On 12/14/2011 1:59 AM, Jacob Carlborg wrote:
What happened to arrays in this release:
void foo (Object[] a) {}
class Foo {}
void main ()
{
Foo[] b;
foo(b);
}
The above code fails with the following message:
main.d(54): Error: function main.foo (Object[] a) is not callable using argument
types (Foo[])
main.d(54): Error: cannot implicitly convert expression (b) of type Foo[] to
Object[]
Have I missed something, I can't find this in the changelog?
I don't remember if there was a bugzilla entry for it, but it's the object
slicing problem. The thing is, main() expects b to be an array of Foo's. If
foo() replaces one of the array elements with an Object, then b is no longer an
array of Foo's, and can crash.
Note that if you write foo as:
void foo(const(Object)[] a)
it will work.
