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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 rodion...@unipro.ru
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
Activity
floitschG commentedon Nov 29, 2011
Added Area-Compiler, Triaged labels.
DartBot commentedon Mar 28, 2012
This comment was originally written by zundel@google.com
Just ran this test again, this is a problem with static analysis, not code generation.
kasperl commentedon Apr 17, 2012
Removed Area-Compiler label.
Added Area-Analyzer label.
danrubel commentedon Jun 4, 2012
Added this to the M1 milestone.
DartBot commentedon Jun 6, 2012
This comment was originally written by zundel@google.com
Just ran the above test again and there are no errors output.
Added CannotReproduce label.
DartBot commentedon Jun 7, 2012
This comment was originally written by rodion...@unipro.ru
Just checked with a recent build of dartc and there was no error as well.
Looks like it's been fixed at some point
fixes #627, update DDC Future.then signature
Update spec_parser.