Static variable declaration of the form "static var v = X" prevents further assigments to v if the value's type is not assignable to X's type #627
Description
This issue was originally filed by [email protected]
What steps will reproduce the problem?
- Run this test with --component=dartc:
class A {
static var b = 1;
}
main() {
A.b = -1;
Expect.equals(-1, A.b);
A.b = "bar";
Expect.equals("bar", A.b);
Map bar = new Map<String, int>();
A.b = bar;
Expect.equals(bar, A.b);
}
- Observe the errors
What is the expected output? What do you see instead?
Spec says (Ch. 7.7):
A non-fi nal static variable declaration of the form static T v; or the form static T v = e; always induces an implicit static setter function (7.3) with signature
static void set v(T x)
whose execution sets the value of v to the incoming argument x.
Doesn't say the setter's argument type is fixed to the runtime type of e, Dynamic is implied and a value of any type should be possible to use.
What version of the product are you using? On what operating system?
latest Dart version, ubuntu 2.6.32-35-generic