+1
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: vrijdag 8 februari 2002 12:28
To: [EMAIL PROTECTED]
Subject: [Eap-features] Move local declaration out of block
If I have
Session sess = getSession();
sess.process(data);
sess.close();
Now I'm worried that 'process()' might fail, so I surround the lot with a
try..catch, and add some code in the catch
try {
Session sess = getSession();
sess.process(data);
sess.close();
}
catch (SessionException e) {
// I type this...
sess = getDefaultSession();
}
I'd like IDEA to automatically spot that I've used 'sess' (declared inside
the try block) and show a light bulb to ask me if I'd like to move the
declaration of sess outside the block, and ask me for a default value
(which could either be null or the expression used to initialise "sess").
The same thing would happen if I did this in a finally block; imagine I
copied the 'sess.close()' part into the finally block -- sess is used but
not defined, so IDEA prompts to move the declaration out.
In fact, this might work in general situations. If a local variable is
declared inside a block, but used outside it, IDEA could prompt to move the
declaration outside as many blocks as is necesary to bring it into scope.
So in the general case:
{
if (condition) {
String my_string = getValue();
}
}
// Syntax error; my_string is not defined.
return my_string;
IDEA prompts to 'Move my_string into scope?' when I type the return
statement. If I say OK, the code becomes
String my_string = null;
{
if (condition) {
my_string = getValue();
}
}
// No syntax errors now.
return my_string;
I the other option on the light bulb menu is to add another declaration of
String my_string. In this case, the code becomes
{
if (condition) {
String my_string = getValue();
}
}
// No syntax errors now, but probably not what I meant
String my_string = null;
return my_string;
What do you think? I've had to do this about 20 times manually today, It
would be a real time-saver if IDEA did it automatically.
Cheers,
Ben.
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