Eclipse has an easy way to find all references to a variable, but is there a quick way to only look for assignments?
Quick? Hm... Find all references with Ctrl+Shift+G, then filter in the Search view (results) via the View menu (dropdown triangle). You can select Reads there to filter these.
Shortcut: Cursor to the variable, menu Search > Write Access > Workspace. No keybinding assigned by default, but you can do this as usual (Preferences > General > Keys).
Ctrl+Shift+U shows all usages of a variable, with different icons for read and write references.
You can also set different colors for read and write occurrences of the selected variable (in the right part of the editor). These colors are set in Eclipse preferences, in "General -> Editors -> Text editors -> Annotations". There is "Occurences" and "Write occurences". I set the same color, slightly darker for "Write occurence", so I can easily spot write occurences, without any key stroke.
Ctrl+Alt+U finds all the references within a class (local references) for a particular variable, on my ubuntu machine.
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In VSCode, when you place cursor inside a symbol (variables, functions, etc), all occurrence of the same symbol will be highlighted.
This feature is somewhat useful but annoying as well. Even I can make it less obtrusive by customizing the color theme in settings.json, it will suppress the selection highlighting when you select a variable by double clicking it with mouse cursor.
I've learned that I can completely disable this feature by adding "editor.occurrencesHighlight":false in settings.json, but this feature is still useful because it can label occurrences of a symbol with different color, to represent read/write status of each occurrence.
So my question is: is there any way to disable the automatic semantic matching feature, and only enable it manually with keyboard shortcuts or commands ?
If you only need textual matches, you can select some text use the Select all occurrences of find match command. This will select every occurrence of the selected text in the current document (and also create a cursor at it)
For symbol based information, try using the Find all references or Peek references commands. The flow is different but it gives the same information.
Alternatively, use an extension like this one to create a keyboard shortcut that toggles editor.occurrencesHighlight
In my project I have files labeled as such day1.txt, day2.txt, day3.txt, etc.
Now in my normal file system they are listed in the correct order:
day1.txt
day2.txt
....
day10.txt
day11.txt
In VS Code they are listed like so:
day1.txt
day10.txt
day11.txt
day2.txt
day3.txt
Is there a setting somewhere to change this? It is driving me mad.
I've given the settings a search and I didn't see any obvious parameter to change that would affect this.
Yes there is a way.
In your Settings (File → Preferences → Settings) search for: explorer.sortOrder
A small pen will appear on the left side of the setting. Select the way you want to sort the files. There are five options available:
Default
Mixed
Files first
Type
Modified
Unfortunately, there's no option that will allow you to sort all of the open editors alphabetically.
No, unfortunately there's no such option as of yet, but there's already a feature request.
Maddening having to constantly search for the file in the OPEN EDITORS section. Such a nice program otherwise. What a shame.
I wanted to change the color of the "matching word assist". I don't know the proper name, but it's a function that highlights the selected word and all its repetitions (for example highlight all the "var" variable names when selected.
Can you tell me the name of this property and where is in Eclipse preferences so I can change it?
The name of that property is Ocurrences, and you can change it on Preferences by going to:
General -> Editors -> Text Editors -> Annotations
As you can see here:
Also, change the Write Ocurrences for when variables have their value assigned or changed.
I'm very happy with the way eclipse autocompletes for me, but I was wondering if it could do something more...
I often have very similarly named variables, such as myPlayerManagerPane and myCharacterManagerPane, I was wondering if there was a way that would allow me to get half way into the name, type a character or two and then autocomplete. This would let me copy and past lines of code for both, then surgically edit the variable names. It's gotten to the point where I'm trying to do this (I'm autocompleting on autopilot) and getting fun variables such as myCharacterManagerPaneManagerPane as I autocomplete a whole name, halfway through another.
Is there a way around this?
In Window > Preferences > Java > Editor > Content Assist, select "Completion overwrites", instead of "Completion inserts". This would overwrite the entire variable with the new one.
Alternatively, you can press Ctrl to toggle this behaviour when the content assist window pops up.
Your question (or rather, its prelude) can easily be confused with another one; namely,
Say I have two variables variableLabel and variableConfiguration, how can I have Eclipse complete the common prefix of the two variables, i.e. variable, before writing either L or C and having Eclipse "AutoComplete" complete the rest?
This is the question which lead me to this thread, so I feel I must answer it:
In Window > Preferences > Java > Editor > Content Assist, check "Insert common prefixes automatically". Pressing Ctrl+Space now results in the desired functionality.
Relevant StackOverflow question
If I have a piece of Code
MyIdentifierIsNice(OtherThingAlsoNice isBetterThen);
I'd like to change the behavior of Ctrl-Left in Eclipse from stopping here:
My|Identifier|Is|Nice|(|Other|Thing|Also|Nice is|Better|Then|);|
to here:
MyIdentifierIsNice(|OtherThingAlsoNice |isBetterThen);|
...or at least just not so often. Other variants would be also fine, like:
MyIdentifierIsNice|(|OtherThingAlsoNice| isBetterThen|);|
Mainly it should stop considering a CamelCaseIdentifier to consist of several words for navigation via Next-Word, and such like.
I use SpringSourceSuite Version 2.5.1, which is Eclipse 3.6, I guess.
Try and unselect the option:
Preferences / Java / Editor / Smart caret positioning in Java names
And see if that enhances the user experience in term of cursor positioning.
If this is not Java, you have a similar option in:
Preferences / General / Editors / Text Editors / Smart caret positioning at line start and end
It is usually selected, meaning if the cursor still stops at every word, that may suggests another setting for a specific language is overriding it.
Coming to Eclipse from XCode, I found the default navigation annoying. In Eclipse, Alt+Left and Alt+Right move to the next camelcase segment, and Ctrl+Left/Right does nothing. In XCode, Alt+Left/Right moves between words and Ctrl+Left/Right moves between camelcase segments. This allows you to control how fine-grained your navigation is.
How I fixed this for myself was by going into Preferences > General > Keys, searching for "Word", and changing the "Next Word" and "Previous Word" bindings from Alt+Left/Right to Ctrl+Left/Right. Then the Alt-navigation is by word and the Ctrl-navigation is by camelcase segment, as in XCode.
I thought this might be useful to some.
Edit:
As I continue to use these new settings, I've found another point:
Although navigation works as advertised, selection has some funky behavior. Namely, Shift+Ctrl+Left/Right can sometimes select large blocks of text instead of just the next camelcase component.
To fix this, again go to Preferences > General > Keys, search for "Select".
Set "Select Next/Previous Word" to Shift+Ctrl+Right/Left.
Unbind "Select Next/Previous Element" (there are three "Whens" to pick from, I unbound all 3).
Voila.
If you want a very simple way to select a entire word without the need to disable smart caret positioning.
You can use at the beginning of word or inside the word:
Shift+Alt+Right
At the end or in the middle of word:
Shift+Alt+Left