Instead of throwing an exception early on, this makes it possible to test all other parts of sketches that make light use of the IO library. A warning is printed once after startup for those environments.
This was tested on OS X against all examples that come with the IO library. Note: x86 and x64 are technically supported platforms. If a user on those prefers to use simulation instead, it is necessary to call NativeInterface.alwaysSimulate() before any other IO library function.
Regarding #4149 and against the better advice of #2623
Currently recursive functions only output this:
"crashed in event thread due to Timeout occurred while waiting for packet 29.
org.eclipse.jdi.TimeoutException: Timeout occurred while waiting for packet 29.
at org.eclipse.jdi.internal.connect.PacketReceiveManager.getReply(PacketReceiveManager.java:186)
at org.eclipse.jdi.internal.connect.PacketReceiveManager.getReply(PacketReceiveManager.java:197)
at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:191)
at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:226)
at org.eclipse.jdi.internal.ThreadReferenceImpl.frames(ThreadReferenceImpl.java:257)
at org.eclipse.jdi.internal.ThreadReferenceImpl.frames(ThreadReferenceImpl.java:240)
at processing.mode.java.runner.Runner.findException(Runner.java:726)
at processing.mode.java.runner.Runner.reportException(Runner.java:709)
at processing.mode.java.runner.Runner.exceptionEvent(Runner.java:631)
at processing.mode.java.runner.Runner$2.run(Runner.java:523)
org.eclipse.jdi.TimeoutException: Timeout occurred while waiting for packet 30.
at org.eclipse.jdi.internal.connect.PacketReceiveManager.getReply(PacketReceiveManager.java:186)
at org.eclipse.jdi.internal.connect.PacketReceiveManager.getReply(PacketReceiveManager.java:197)
at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:191)
at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:226)
at org.eclipse.jdi.internal.VirtualMachineImpl.exit(VirtualMachineImpl.java:716)
at processing.mode.java.runner.Runner.close(Runner.java:801)
at processing.mode.java.JavaEditor.handleStop(JavaEditor.java:1156)
at processing.mode.java.JavaToolbar.handleStop(JavaToolbar.java:146)
at processing.mode.java.JavaToolbar$4.actionPerformed(JavaToolbar.java:104)
at processing.app.ui.EditorButton.mousePressed(EditorButton.java:181)
at java.awt.Component.processMouseEvent(Component.java:6522)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6290)
at java.awt.Container.processEvent(Container.java:2234)
at java.awt.Component.dispatchEventImpl(Component.java:4881)
at java.awt.Container.dispatchEventImpl(Container.java:2292)
at java.awt.Component.dispatchEvent(Component.java:4703)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4530)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462)
at java.awt.Container.dispatchEventImpl(Container.java:2278)
at java.awt.Window.dispatchEventImpl(Window.java:2750)
at java.awt.Component.dispatchEvent(Component.java:4703)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)"
with the patch this becomes
"A StackOverflowError means that you have a bug that's causing a function
to be called recursively (it's calling itself and going in circles),
or you're intentionally calling a recursive function too much,
and your code should be rewritten in a more efficient manner."
(and the TimeoutException once you click the stop button)
This one goes from ASTGenerator on a background thread to the JList
which displays code suggestions. Until refactored, I'm making it
immutable with convenience methods returning mutated copies to prevent
possible threading issues.
Does not guarantee support for all Java 7 features (only some), but
warns about lambdas not being available. Lambdas are not supported,
because they make ANTLR angry.
Fixes#4034
gohai