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[jdt-core-dev] Re: Improving capture readable names
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Rather than answering my previous note, please post a comment into:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=149573
Philippe P
Mulet/France/IBM
To
07/04/2006 02:14 jdt-core-dev@xxxxxxxxxxx
PM cc
Subject
Improving capture readable names
Currently, the following (invalid) program is rejected, but the error
message is slightly misleading.
import java.util.List;
public class X {
void foo(List<? extends Exception> l1, List<? extends Exception> l2)
{
l1.add(l2.get(0));
}
}
Compiler says:
The method add(capture-of ? extends Exception) in the type
List<capture-of ? extends Exception> is not applicable for the arguments
(capture-of ? extends Exception)
Note that there are 2 instances of captures, which end up being not
distinguishable in the message. Along the lines of
http://blogs.sun.com/ahe?entry=diagnosing_captured_wildcards, I am
proposing to improve the rendering into something telling the capture
number.
Like one of the following:
1-The method add(capture$1-of ? extends Exception) in the type
List<capture$1-of ? extends Exception> is not applicable for the arguments
(capture$2-of ? ? extends Exception)
2-The method add(capture#1-of ? extends Exception) in the type
List<capture#1-of ? extends Exception> is not applicable for the arguments
(capture#2-of ? ? extends Exception)
3-The method add(capture-1-of ? extends Exception) in the type
List<capture-1-of ? extends Exception> is not applicable for the arguments
(capture-2-of ? ? extends Exception)
4-The method add(capture1-of ? extends Exception) in the type
List<capture1-of ? extends Exception> is not applicable for the arguments
(capture2-of ? ? extends Exception)
5-The method add(capture[1]-of ? extends Exception) in the type
List<capture[1]-of ? extends Exception> is not applicable for the arguments
(capture[2]-of ? ? extends Exception)
6-The method add(capture'1-of ? extends Exception) in the type
List<capture'1-of ? extends Exception> is not applicable for the arguments
(capture'2-of ? ? extends Exception)
7-Other?
Please indicate your preference.