Error in Processing 4 (freezing with show usage, jump to declaration etc.)

glv · March 10, 2023, 4:54pm

There are related Github issues reported here:

Pressing Ctrl-key and click on a word crashes PDE if character 'ä' is used.

opened 02:36PM - 04 Mar 23 UTC

## Description Pressing Ctrl-key and click on a word crashes PDE if character '…ä' is used. ## Expected Behavior Pressing Ctrl-key and click on a word opens a window 'usage of ...'. ## Current Behavior Sketch crashes under processing v4.x if you insert character 'ä' and press Ctrl-key and click on a word. ## Steps to Reproduce /* file: Processing_v4_bug.pde Copy this example to PDE. Press Ctrl-key and click on word 'text' A window 'Usage of height' opens under processing v3.x. With processing v4.x the sketch crashes! Reason is the usage of character 'ä'. If you delete it, all is working fine. */ void setup() { size(100, 80, P3D); } void draw() { background (55); text(frameCount,22,22); } ## Your Environment * Processing version: 4.x * Operating System and OS version: Window-10 ## Possible Causes / Solutions Delete character 'ä' and try again... it works fine

github.com/processing/processing4

Using right-click 'Jump to declaration' menu item causes Processing to lock-up in some sketches.

opened 10:14AM - 04 Aug 22 UTC

matkeane

Help Wanted

## Description Using right-click 'Jump to declaration' menu item causes P…rocessing to lock-up in some sketches. When selecting a variable or function name in the UI and clicking on 'Jump to declaration' Processing locks up - No error is shown in the console but the UI becomes unresponsive, menus no longer open and windows cannot be opened or closed. I did wonder if things were just slow, but 10-15 minutes later, Activity Monitor shows Processing as 'not responding' but using between 25-25% CPU. I first noticed the problem when working on my own projects, so it's quite possible there's something horrible about my code which is triggering this (my current project has a few thousand lines of code in 28 files, so quite likely I guess). Having said that, the same project didn't trigger this problem using Processing 3.5.4, I only encountered this after opening the project in Processing 4. Different versions of the project compile and run without errors under versions 3 & 4 of Processing. While the problem doesn't occur when opening single-tab examples or sketches, it does happen with some of the multi-file example code from the 'Generative Design' book, but doesn't occur when testing a sketch by Marius Watz in 2 tabs. In addition to controlP5 (which doesn't trigger the error in other sketches) my current project imports the following libraries: ``` import java.util.Locale; import java.awt.datatransfer.*; import java.awt.Toolkit; import java.io.FileInputStream; // File Streams. import java.io.FileOutputStream; import java.util.UUID; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; ``` ## Expected Behavior In Processing 3, the 'Jump to declaration' menu item would jump straight to the appropriate variable/function declaration. ## Current Behavior In version 4, 'Jump to declaration' sometimes causes Processing to become unresponsive. ## Steps to Reproduce Some of the sketches which trigger the problem import external libraries, but I haven't found a sketch (other than my own) which always triggers the problem. ## Your Environment * Processing version: Processing 4.0b8 * Operating System and OS version: Mac OS 10.15.7

:)

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Error in Processing 4 (freezing with show usage, jump to declaration etc.)

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