feat: make Function constructor

src/java/me/topchetoeu/jscript/lib/FilesystemLib.java

@@ -51,7 +51,7 @@ public class FilesystemLib {
 
             try {
                 if (fs.stat(path).type != EntryType.FILE) {
-                    throw new FilesystemException(ErrorReason.DOESNT_EXIST, "Not a file").setAction(ActionType.OPEN);
+                    throw new FilesystemException(ErrorReason.DOESNT_EXIST, "Not a file").setAction(ActionType.OPEN).setPath(path);
                 }
 
                 return new FileLib(fs.open(path, _mode));

src/java/me/topchetoeu/jscript/lib/FunctionLib.java

@@ -1,16 +1,24 @@
 package me.topchetoeu.jscript.lib;
 
+import me.topchetoeu.jscript.common.Filename;
+import me.topchetoeu.jscript.runtime.Compiler;
+import me.topchetoeu.jscript.runtime.Context;
+import me.topchetoeu.jscript.runtime.scope.ValueVariable;
 import me.topchetoeu.jscript.runtime.values.ArrayValue;
 import me.topchetoeu.jscript.runtime.values.CodeFunction;
 import me.topchetoeu.jscript.runtime.values.FunctionValue;
 import me.topchetoeu.jscript.runtime.values.NativeFunction;
+import me.topchetoeu.jscript.runtime.values.Values;
 import me.topchetoeu.jscript.utils.interop.Arguments;
 import me.topchetoeu.jscript.utils.interop.Expose;
+import me.topchetoeu.jscript.utils.interop.ExposeConstructor;
 import me.topchetoeu.jscript.utils.interop.ExposeTarget;
 import me.topchetoeu.jscript.utils.interop.WrapperName;
 
 @WrapperName("Function")
 public class FunctionLib {
+    private static int i;
+
     @Expose public static Object __apply(Arguments args) {
         return args.self(FunctionValue.class).call(args.ctx, args.get(0), args.convert(1, ArrayValue.class).toArray());
     }
@@ -51,4 +59,25 @@ public class FunctionLib {
     public static FunctionValue __generator(Arguments args) {
         return new GeneratorFunctionLib(args.convert(0, CodeFunction.class));
     }
+
+    @ExposeConstructor
+    public static Object __constructor(Arguments args) {
+        var compiler = Compiler.get(args);
+
+        var parts = args.convert(String.class);
+        if (parts.length == 0) parts = new String[] { "" };
+
+        var src = "return function(";
+
+        for (var i = 0; i < parts.length - 1; i++) {
+            if (i != 0) src += ",";
+            src += parts[i];
+        }
+
+        src += "){" + parts[parts.length - 1] + "}";
+
+        var body = compiler.compile(new Filename("jscript", "func/" + i++), src);
+        var func = new CodeFunction(Context.clean(args.ctx), "", body, new ValueVariable[0]);
+        return Values.call(args, func, null);
+    }
 }

src/java/me/topchetoeu/jscript/runtime/Context.java

@@ -92,7 +92,7 @@ public class Context implements Extensions {
         return new Context(ext);
     }
     public static Extensions clean(Extensions ext) {
-        if (ext instanceof Context) return ((Context)ext).extensions;
+        if (ext instanceof Context) return clean(((Context)ext).extensions);
         else return ext;
     }
 }

src/java/me/topchetoeu/jscript/runtime/scope/GlobalScope.java

@@ -20,7 +20,7 @@ public class GlobalScope {
         return Values.hasMember(ext, obj, name, false);
     }
 
-    public GlobalScope globalChild() {
+    public GlobalScope child() {
         var obj = new ObjectValue();
         Values.setPrototype(null, obj, this.obj);
         return new GlobalScope(obj);

src/java/me/topchetoeu/jscript/utils/JScriptRepl.java

@@ -89,7 +89,6 @@ public class JScriptRepl {
     private static void initEnv() {
         environment = Internals.apply(environment);
 
-        var wp = NativeWrapperProvider.get(environment);
         var glob = GlobalScope.get(environment);
 
         glob.define(null, false, new NativeFunction("exit", args -> {

src/java/me/topchetoeu/jscript/utils/filesystem/BaseFile.java

@@ -32,7 +32,7 @@ public abstract class BaseFile<T> implements File {
     @Override public synchronized long seek(long offset, int pos) {
         try {
             if (handle == null) throw new FilesystemException(ErrorReason.CLOSED);
-            if (!mode.writable) throw new FilesystemException(ErrorReason.NO_PERMISSION, "File not open for seeking.");
+            if (mode == Mode.NONE) throw new FilesystemException(ErrorReason.NO_PERMISSION, "File not open for seeking.");
             return onSeek(offset, pos);
         }
         catch (FilesystemException e) { throw e.setAction(ActionType.SEEK); }

src/java/me/topchetoeu/jscript/utils/filesystem/FilesystemException.java

@@ -54,16 +54,12 @@ public class FilesystemException extends RuntimeException {
     @Override public String getMessage() {
         var parts = new ArrayList<String>(10);
 
-        path = String.join(" ", parts).trim();
-        if (path.isEmpty()) path = null;
-        parts.clear();
-
         parts.add(action == null ? "An action performed upon " : action.readable(reason.usePast));
 
         if (entry == EntryType.FILE) parts.add("file");
         if (entry == EntryType.FOLDER) parts.add("folder");
 
-        if (path != null) parts.add(path);
+        if (path != null && !path.isBlank()) parts.add(path.trim());
 
         parts.add(reason.readable);
 

src/java/me/topchetoeu/jscript/utils/filesystem/PhysicalFilesystem.java

@@ -1,5 +1,6 @@
 package me.topchetoeu.jscript.utils.filesystem;
 
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.nio.file.FileAlreadyExistsException;
 import java.nio.file.Files;
@@ -35,7 +36,8 @@ public class PhysicalFilesystem implements Filesystem {
                 ));
                 else return handles.put(new PhysicalFile(path, perms));
             }
-            catch (IOException e) { throw new FilesystemException(ErrorReason.DOESNT_EXIST); }
+            catch (FileNotFoundException e) { throw new FilesystemException(ErrorReason.DOESNT_EXIST); }
+            catch (IOException e) { throw new FilesystemException(ErrorReason.NO_PERMISSION); }
         }
         catch (FilesystemException e) { throw e.setAction(ActionType.OPEN).setPath(_path); }
     }
@@ -68,12 +70,7 @@ public class PhysicalFilesystem implements Filesystem {
 
         if (!Files.exists(path)) return new FileStat(Mode.NONE, EntryType.NONE);
 
-        var perms = Mode.NONE;
-
-        if (Files.isReadable(path)) {
-            if (Files.isWritable(path)) perms = Mode.READ_WRITE;
-            else perms = Mode.READ;
-        }
+        var perms = Mode.of(Files.isReadable(path), Files.isWritable(path));
 
         if (perms == Mode.NONE) return new FileStat(Mode.NONE, EntryType.NONE);
 

src/java/me/topchetoeu/jscript/utils/modules/ModuleRepo.java

@@ -6,6 +6,7 @@ import me.topchetoeu.jscript.common.Filename;
 import me.topchetoeu.jscript.runtime.Context;
 import me.topchetoeu.jscript.runtime.Extensions;
 import me.topchetoeu.jscript.runtime.Key;
+import me.topchetoeu.jscript.runtime.scope.GlobalScope;
 import me.topchetoeu.jscript.utils.filesystem.Filesystem;
 import me.topchetoeu.jscript.utils.filesystem.Mode;
 
@@ -25,8 +26,10 @@ public interface ModuleRepo {
 
             if (modules.containsKey(name)) return modules.get(name);
 
-            var env = ctx.extensions.child();
+            var env = Context.clean(ctx.extensions).child();
             env.add(CWD, fs.normalize(name, ".."));
+            var glob = env.get(GlobalScope.KEY);
+            env.add(GlobalScope.KEY, glob.child());
 
             var mod = new SourceModule(filename, src, env);
             modules.put(name, mod);