better error formatting with CranberriRuntimeError

Author: JupiterPi

cranberri-server-plugin/src/main/kotlin/jupiterpi/cranberri/RunningScript.kt

@@ -34,7 +34,7 @@ open class RunningScript(private val computer: Computer, val script: Script) {
         fun handleError(e: Exception) {
             computer.status = Computer.Status.ERROR
             e.cause?.printStackTrace() ?: e.printStackTrace()
-            computer.runningScript?.logger?.printError(e.cause.toString())
+            computer.runningScript?.logger?.printError(if (e.cause is CranberriRuntimeError) e.cause!!.message!! else e.cause.toString())
         }
 
         try { script.invokeSetup() }
@@ -72,7 +72,7 @@ class ArduinoModeRunningScript(computer: Computer, script: Script) : RunningScri
 
     fun setPinMode(pin: Int, mode: Arduino.PinMode) {
         if ((mode == Arduino.PinMode.INPUT && pins[pin-1] !is InputPin) || (mode == Arduino.PinMode.OUTPUT && pins[pin-1] !is OutputPin)) {
-            throw Exception("Tried to set to wrong pin mode!")
+            throw CranberriRuntimeError("Tried to set to wrong pin mode!")
         }
         pinModesSet += pin
     }
@@ -104,4 +104,6 @@ class ArduinoModeRunningScript(computer: Computer, script: Script) : RunningScri
             }
         }
     }
-}
+}
+
+class CranberriRuntimeError(msg: String): Exception(msg)

cranberri-server-plugin/src/main/kotlin/jupiterpi/cranberri/runtime/api/IO.kt

@@ -31,7 +31,7 @@ object IO {
         assertModeSet(pin)
 
         runningScript.pins[pin-1].let {
-            if (it is OutputPin) it.writeValue(value) else throw Exception("Tried to write to input pin!")
+            if (it is OutputPin) it.writeValue(value) else throw CranberriRuntimeError("Tried to write to input pin!")
         }
 
         val valueStr = when (value) {
@@ -47,13 +47,13 @@ object IO {
 
         runningScript.logger.printDebug("in $pin")
         runningScript.pins[pin-1].let {
-            if (it is InputPin) return it.readValue() else throw Exception("Tried to write to input pin!")
+            if (it is InputPin) return it.readValue() else throw CranberriRuntimeError("Tried to write to input pin!")
         }
     }
 
     private fun assertModeSet(pin: Int) {
         val runningScript = getComputer()?.runningScript ?: return
-        if (runningScript is ArduinoModeRunningScript && !runningScript.pinModesSet.contains(pin)) throw Exception("Tried to access pin without mode set!")
+        if (runningScript is ArduinoModeRunningScript && !runningScript.pinModesSet.contains(pin)) throw CranberriRuntimeError("Tried to access pin without mode set!")
     }
 }
 
@@ -64,15 +64,15 @@ object Arduino {
     }
 
     @JvmStatic fun pinMode(pin: Int, mode: PinMode) {
-        if (getScriptContext() != "setup") throw Exception("You can only call pinMode() from within setup()!")
+        if (getScriptContext() != "setup") throw CranberriRuntimeError("You can only call pinMode() from within setup()!")
 
         val runningScript = (getComputer()?.runningScript as ArduinoModeRunningScript?) ?: return
         runningScript.setPinMode(pin, mode)
     }
 
     class Delay(ticks: Int) {
         init {
-            if (getScriptContext() != "loop") throw Exception("You can only call delay() from within loop()!")
+            if (getScriptContext() != "loop") throw CranberriRuntimeError("You can only call delay() from within loop()!")
 
             val runningScript = getComputer()?.runningScript as ArduinoModeRunningScript?
             if (runningScript != null) {

cranberri-server-plugin/src/main/kotlin/jupiterpi/cranberri/runtime/compilation/ProjectCompiler.kt

@@ -41,7 +41,7 @@ object ProjectCompiler {
         lookForSourceFiles(File("$PROJECTS_ROOT/$projectName/lib"), false)
 
         val manifest = ProjectManifest.read(File("$PROJECTS_ROOT/$projectName/project.yaml"))
-        if (manifest.arduinoMode && (manifest.projectType != ProjectManifest.ProjectType.SIMPLE || manifest.language != ProjectManifest.ProjectLanguage.JAVA)) throw Exception("Invalid project configuration: Arduino mode is only allowed for Java/simpe projects!")
+        if (manifest.arduinoMode && (manifest.projectType != ProjectManifest.ProjectType.SIMPLE || manifest.language != ProjectManifest.ProjectLanguage.JAVA)) throw Exception("Invalid project configuration: Arduino mode is only allowed for Java/simple projects!")
 
         val compiler = when (manifest.projectType) {
             ProjectManifest.ProjectType.SIMPLE -> SimpleProjectCompiler