initialize instance variables by using optional parameter

[yutopp]

Hello.
I have a question with code below.
If same question has been posted, I'm sorry.
I'm using DartEditor build 7566, and it runs as Server Application.

class hoge
{
hoge([final int this.number]);
final int number = 100;
}

void main() {
print( new hoge().number ); // I want this to print 100,
but it prints null.
print( new hoge( 200 ).number ); // This prints 200.
}

I understand the value of non-initialized variables is null, but in
this case, I think value of hoge.number should be 100.
Thanks.

[William Hesse]

This is issue 2160 on the Dart issue tracker.
http://code.google.com/p/dart/issues/detail?id=2160

The resolution of this issue is uncertain.
The suggested fix is
class hoge {
hoge([this.number = 100]);
final int number;

--
William Hesse
Software Engineer
whe...@google.com

Google Denmark ApS
Frederiksborggade 20B, 1 sal
1360 København K
Denmark
CVR nr. 28 86 69 84

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[yutopp]

Thank you very much.

Regards,
yutopp