This program, compiled with dmd 2.042:


int foo() {
    int[int] aa = [1: 1];
    int r = aa.get(1, 1000);
    return 1;
}
enum _ = foo();
void main() {}



Generates the errors:

...\dmd\src\druntime\import\object.di(366): Error: Cannot interpret key in *cast(int[int]*)&this.p at compile time
test.d(5): Error: cannot evaluate aa.get(1,delegate int()

{

return 1000;

}

) at compile time
test.d(8): Error: cannot evaluate foo() at compile time
test.d(8): Error: cannot evaluate foo() at compile time