Add a graphical error message when a program cannot be loaded by the debugger

Author: MaartenS11

src/main/kotlin/be/ugent/topl/mio/sourcemap/BinaryInfo.kt

@@ -12,7 +12,7 @@ data class WasmInfo(
 )
 data class WasmBinary(val file: File, val metadata: WasmInfo)
 
-fun getBinaryInfo(wdcliPath: String, wasmFile: String): WasmInfo {
+fun getBinaryInfo(wdcliPath: String, wasmFile: String): Result<WasmInfo> {
     println("Get binary info using $wdcliPath")
     val process = ProcessBuilder(wdcliPath, wasmFile, "--no-socket", "--dump-info").redirectErrorStream(true).start()
     val lineScanner = Scanner(process.inputStream)
@@ -24,13 +24,13 @@ fun getBinaryInfo(wdcliPath: String, wasmFile: String): WasmInfo {
             val objectMapper = ObjectMapper()
             objectMapper.registerKotlinModule()
             process.destroy()
-            return objectMapper.readValue(currentLine, WasmInfo::class.java)
+            return Result.success(objectMapper.readValue(currentLine, WasmInfo::class.java))
         }
     }
     process.destroy()
     println("Output:")
     for (line in lines) {
         println(line)
     }
-    throw Exception("Failed to get info")
+    return Result.failure(Exception(lines.joinToString("\n")))
 }

src/main/kotlin/be/ugent/topl/mio/ui/InteractiveDebugger.kt

@@ -32,6 +32,7 @@ import javax.swing.event.DocumentEvent
 import javax.swing.event.DocumentListener
 import javax.swing.table.DefaultTableModel
 import kotlin.concurrent.thread
+import kotlin.system.exitProcess
 
 
 class InteractiveDebugger(
@@ -40,7 +41,10 @@ class InteractiveDebugger(
     private val wasmFile: String = "/home/maarten/Documents/School/Thesis/thesis-git/wardbg/simple-sym-test.wasm",
     private val config: DebuggerConfig
 ) : JFrame("WARDuino Debugger") {
-    private val binaryInfo = getBinaryInfo(config.wdcliPath, File(wasmFile).absolutePath)
+    private val binaryInfo = getBinaryInfo(config.wdcliPath, File(wasmFile).absolutePath).getOrElse {
+        JOptionPane.showMessageDialog(this, it.message, "Error obtaining binary info", JOptionPane.ERROR_MESSAGE)
+        exitProcess(1)
+    }
     private val debugger = MultiverseDebugger(
         connection,
         WasmBinary(File(wasmFile), binaryInfo),