Bugzilla – Full Text Bug Listing
| Summary: | [evaluation] evaluation in static method with generics does not work | ||||||||
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| Product: | [Eclipse Project] JDT | Reporter: | Darin Wright <darin.eclipse> | ||||||
| Component: | Debug | Assignee: | Curtis Windatt <curtis.windatt.public> | ||||||
| Status: | VERIFIED FIXED | QA Contact: | |||||||
| Severity: | normal | ||||||||
| Priority: | P2 | CC: | achiya.e, kmudrick, koppelman, pp3.14p, thilo | ||||||
| Version: | 3.3 | ||||||||
| Target Milestone: | 3.3 RC1 | ||||||||
| Hardware: | PC | ||||||||
| OS: | Mac OS X - Carbon (unsup.) | ||||||||
| Whiteboard: | |||||||||
| Attachments: |
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unable to reproduce on Windows or Mac Re-opening. Found a case where this dose not work. In the following example, set a breakpoint on last sysout. Try to eval "list.get(0)" > error. We should only be adding type parameters for wild card types, not parameterized types like <Integer>.
public class Eval {
public static void main(String[] args) {
ArrayList<Integer> list = new ArrayList<Integer>();
list.add(1024);
int x = 1;
for (int j = 0; j <= 10; j++) {
list.add(x);
x *= 2;
}
for (int i : list) {
System.out.print(i + "\t");
}
System.out.println();
boolean b = list.get(0) != list.get(list.size() - 1);
// Breakpoint the next line: copy the right side of
// the previous line (list.get(0) ... ) into the Display
// view and evaluate it
System.out.println("Test says " + b);
// Display tab evaluation yields false; value of b is true
}
}
Created attachment 65770 [details]
patch
Created attachment 65783 [details]
improved patch
Accounts for types like <T extends Comparable<T>>.
*** Bug 176648 has been marked as a duplicate of this bug. *** *** Bug 156370 has been marked as a duplicate of this bug. *** Released to HEAD. Please verify, Curtis. Verified Changing OS from Mac OS to Mac OS X as per bug 185991 I'm using eclipse 3.5.1 for 64bit computers and the fix does not work (In reply to comment #12) > I'm using eclipse 3.5.1 for 64bit computers and the fix does not work Please open a new bug with steps to reproduce. (In reply to comment #13) > (In reply to comment #12) > > I'm using eclipse 3.5.1 for 64bit computers and the fix does not work > > Please open a new bug with steps to reproduce. I found that this bug for 64bit eclipse's version is not fixed yet, too. Eclipse Platform Version: 3.6.0.v20100602-9gF78GpqFt6trOGhL60z0oEx3fz-JKNwxPY Build id: I20100608-0911 Windows 7 Enterprise 64-bit Actually, its difficult to reproduce - some time its working correctly, some time even expressions like 1+1 not evaluated! Maybe you should fix it by not searching reproducing steps, but another way... its found from 2007 year and not yet fixed for today!... |
I20070501-0010 * Using the following source * Debug to a breakpoint in deal() * evaluate "deck.subList(deckSize-n, deckSize)" > error: Evaluations must contain either an expression or a block of well formed statements public class Deal { public static void main(String args[]) { int numHands = Integer.parseInt(args[0]); int cardsPerHand = Integer.parseInt(args[1]); List<Card> deck = Card.newDeck(); Collections.shuffle(deck); for (int i=0; i < numHands; i++) System.out.println(deal(deck, cardsPerHand)); } public static ArrayList<Card> deal(List<Card> deck, int n) { int deckSize = deck.size(); List<Card> handView = deck.subList(deckSize-n, deckSize); ArrayList<Card> hand = new ArrayList<Card>(handView); handView.clear(); return hand; } } and import java.util.*; public class Card { public enum Rank { DEUCE, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE, TEN, JACK, QUEEN, KING, ACE } public enum Suit { CLUBS, DIAMONDS, HEARTS, SPADES } private final Rank rank; private final Suit suit; private Card(Rank rank, Suit suit) { this.rank = rank; this.suit = suit; } public Rank rank() { return rank; } public Suit suit() { return suit; } public String toString() { return rank + " of " + suit; } private static final List<Card> protoDeck = new ArrayList<Card>(); // Initialize prototype deck static { for (Suit suit : Suit.values()) for (Rank rank : Rank.values()) protoDeck.add(new Card(rank, suit)); } public static ArrayList<Card> newDeck() { return new ArrayList<Card>(protoDeck); // Return copy of prototype deck } }