Add single file debug mode.

Author: Moderocky

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>org.byteskript</groupId>
     <artifactId>byteskript</artifactId>
-    <version>1.0.22</version>
+    <version>1.0.23</version>
     <name>ByteSkript</name>
     <description>A compiled JVM implementation of the Skript language.</description>
 

src/main/java/org/byteskript/skript/app/ByteSkriptApp.java

@@ -26,7 +26,7 @@ public static void main(String... args) throws Throwable {
             makeFiles();
             System.out.println(RESET + "Welcome to " + BRIGHT_PURPLE + "ByteSkript" + RESET + "!");
             System.out.println(RESET + "Available arguments:");
-            System.out.println(RESET + "\trun <file>  | " + CYAN + "Run scripts in the " + CYAN_UNDERLINED + "skripts/" + CYAN + " directory.");
+            System.out.println(RESET + "\trun <file>  | " + CYAN + "Run scripts in the " + CYAN_UNDERLINED + "skript/" + CYAN + " directory.");
             System.out.println(RESET + "\t            | " + CYAN + "If a file-arg is given, only this script will be run.");
             System.out.println(RESET + "\tcompile     | " + CYAN + "Compile library class files for all scripts.");
             System.out.println(RESET + "\t            | " + CYAN + "Syntax-providing classes can be moved to the " + CYAN_UNDERLINED + "libraries/" + CYAN + " folder.");
@@ -36,7 +36,8 @@ public static void main(String... args) throws Throwable {
             System.out.println(RESET + "\ttest <file> | " + CYAN + "Runs available scripts in test mode.");
             System.out.println(RESET + "\t            | " + CYAN + "Test-only features will be available here.");
             System.out.println(RESET + "\t            | " + CYAN + "If a file-arg is given, only this script will be tested.");
-            System.out.println(RESET + "\tdebug       | " + CYAN + "Generates a debug information file (for bug reports!)");
+            System.out.println(RESET + "\tdebug       | " + CYAN + "Generates a debug information file for all scripts (for bug reports!)");
+            System.out.println(RESET + "\tdebug <file>| " + CYAN + "Generates a debug information file for a given script (for bug reports!)");
             System.out.print(RESET);
             System.out.println("Visit https://docs.byteskript.org for help and tutorials.");
         } else if (args[0].equalsIgnoreCase("clean")) {
@@ -85,8 +86,15 @@ public static void main(String... args) throws Throwable {
             }
             new SimpleThrottleController(SKRIPT).run();
         } else if (args[0].equalsIgnoreCase("debug")) {
-            System.out.println(RESET + "Generating a debug report of your current scripts." + RESET);
-            ScriptDebugger.main();
+            if (args.length < 2) {
+                System.out.println(RESET + "Generating a debug report of your current scripts." + RESET);
+                ScriptDebugger.main();
+            } else {
+                final String name = args[1];
+                System.out.println(RESET + "Generating a debug report of " + CYAN + CYAN_UNDERLINED + name + RESET + "." + RESET);
+                final File file = new File(name);
+                ScriptDebugger.debug(file);
+            }
             System.out.println(RESET + "This has been stored in " + CYAN + CYAN_UNDERLINED + "debug.txt" + RESET + ".");
         }
     }

src/main/java/org/byteskript/skript/app/ScriptDebugger.java

@@ -11,6 +11,7 @@
 import org.byteskript.skript.runtime.Skript;
 
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
 
@@ -24,4 +25,15 @@ public static void main(String... args) throws IOException {
             skript.compileScripts(SOURCE);
         }
     }
+    
+    public static void debug(File file) throws IOException {
+        final File debug = new File(ROOT, "debug.txt");
+        try (final FileOutputStream stream = new FileOutputStream(debug)) {
+            try (final FileInputStream input = new FileInputStream(file)) {
+                final Skript skript = new Skript(new DebugSkriptCompiler(Stream.controller(stream)));
+                registerLibraries(skript);
+                skript.compileScript(input, "skript/" + file.getName());
+            }
+        }
+    }
 }

src/main/java/org/byteskript/skript/app/SkriptApp.java

@@ -14,7 +14,6 @@
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.lang.reflect.InvocationTargetException;
 import java.net.URISyntaxException;
 import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
@@ -52,20 +51,19 @@ protected static void registerLibraries(final Skript skript) {
         final List<File> files = getFiles(new ArrayList<>(), LIBRARIES.toPath());
         for (final File file : files) {
             if (file.getName().endsWith(".jar")) {
-                try {
-                    final JarFile jar = new JarFile(file);
+                try (final JarFile jar = new JarFile(file)) {
                     final String main = jar.getManifest().getMainAttributes().getValue("Main-Class");
                     if (main == null)
-                        throw new ScriptLibraryError("Library '" + file.getName() + "' is missing main class in manifest.");
+                        throw new ScriptLibraryError("Library '" + file.getName() + "' is missing a main class in its Jar manifest.");
                     callLibrary(file, main, skript);
                 } catch (Throwable ex) {
                     ex.printStackTrace();
                 }
             } else if (file.getName().endsWith(".class")) {
                 try (final InputStream stream = new FileInputStream(file)) {
                     skript.registerLibraryClass(stream.readAllBytes());
-                } catch (IOException exception) {
-                    throw new ScriptLibraryError("Error while loading library '" + file.getName() + "'", exception);
+                } catch (Throwable exception) {
+                    throw new ScriptLibraryError("Error while loading class library '" + file.getName() + "'", exception);
                 }
             }
         }
@@ -76,9 +74,14 @@ protected static void callLibrary(final File file, final String main, final Skri
         final Class<?> target = Class.forName(main, true, child);
         try {
             target.getMethod("load", Skript.class).invoke(null, skript);
-        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException ex) {
-            throw new ScriptLibraryError("Library '" + file.getName() + "' main class is missing load method:\n" +
+        } catch (NoSuchMethodException ex) {
+            throw new ScriptLibraryError("Library '" + file.getName() + "' main class is missing a load method:\n" +
                 "public static void load(Skript skript)\n");
+        } catch (IllegalAccessException ex) {
+            throw new ScriptLibraryError("Library '" + file.getName() + "' main class has no public load method:\n" +
+                "public static void load(Skript skript)\n");
+        } catch (Throwable ex) {
+            throw new ScriptLibraryError("Error encountered while loading '" + file.getName() + "':", ex);
         }
     }
 

src/main/java/org/byteskript/skript/compiler/FileContext.java

@@ -45,6 +45,7 @@ public class FileContext extends Context {
     LanguageElement expected;
     SyntaxElement currentEffect;
     private HandlerType mode = StandardHandlers.GET;
+    
     public FileContext(Type type) {
         this.type = type;
         this.state = CompileState.ROOT;