I wonder if there is a way to change what we see in Value in Variables view in eclipse debugger?
For example instead of "ObjectClass (id=94)" I would like to see what that object toString() method returns, is it possible?
(I know that in "Expressions" we can add variable.toString() and it will show it, but I must add it manually, over time is tedious).
Yes you can do this by using your own debug detailed Formatters. Check here that the Person object is changed from Person(id=38) to Name=John Surname=Smit.
Also refer this link.
Related
In our dear VS Code when we hover in any variable the vscode by default shows the type of this variable, when it is an object, it shows the structure of the object.
e.g:
I would like to know if in addition to showing the type or structure it is possible to show the value of the properties.
If this is not possible in the vscode itself, is there any extension that does something like this?
The closest you can get to what you want (show variables value), is to add the variable in the debug window to the watch list. In debug mode, when you hit a breakpoint, your watch will evaluate the value at the current time (whether its been set, or not etc.) and will output what it is in that window for you.
See below:
Currently I get this result with Eclipse auto completion.
System.console().printf(format, args)
Of course, Eclipse shows the parameter types as popup, but I want the types to be displayed in front of parameter names too. Like this.
System.console().printf(String format, Object ... args) // `String`, `Object` inserted automatically.
Can I configure Eclipse to show the parameter types too?
Of course not. Eclipse auto completion only suggests valid syntax, while your demand is not valid java code.
An alternative for you might be to open the "Declaration" view or the "JavaDoc" view. Both will always show the declaration/JavaDoc of the currently selected element while you are typing. Therefore you could see the method declaration/javadoc when writing that method call.
Update
Whoever came across this old question. You can use eclipse code mining now:
parameter name hint for Eclipse
I'm using chrome's devtools to debug/modify a non-local javascript file(so I can't edit it).
The code is rather complex and defines function inside of functions and uses these pointers throughout.
The point is that I do not know where I'm exactly at in the process but I can set a breakpoint to a variable I need to modify. BUT I can't figure out how to modify it. I can add a watch or modify it under the locals panel BUT it won't actually change (after stepping once the value reverts to original)
So how can I change the variable? I don't know why it is so difficult. In my traditional debugging you can simply edit the value in the watch or locals and it will modify it. I've tried modifying it at the console but I guess I don't know the complete path to the variable and I always get an undefined variable.
All I want to do is modify a local variable or argument in side some function I set a breakpoint at.
Try doing this in the console. E.g.: window.myVar = "newValue"
First watch the variable, second in Scope tab you can change the value of the var!
Is there any quick way to add a parameter in all methods of a package in eclipse?
If you mean to add a few parameters for one method and after that it'll be updated automatically in all packages , there is. Right click on the method and there is option Refactor -> Change Method signature, here you can add/remove parameters.
See http://www.raymondcamden.com/index.cfm/2009/3/16/Multifile-search-and-replace-in-Eclipse. You will have to modify the instructions there just a tad for your needs:
Instead of telling Eclipse to search for a literal string you will be searching for a regular expression pattern that describes a method call/definition. I'll leave that as an exercise for you ;-)
I would like to know if there is a function that when i give it an ASTNode object (the ASTNode can be a class, method or a field in a CompilationUnit) as an argument it can show this object in a view (Tree view or Table view). If there isn't any such function, is there another way or workaround of doing it?
Thanks for your help.
You may be able to use the ASTView plugin
It's not clear if you are referring to Java or just something else. I'm assuming you need a Java tool. I'm not sure what exactly you expect to see in the "view".
Do check out nWire. It may be what you are looking for. Given any component in your code (like Class, field, etc.) it can show all possible associations to other components.