fix: clear buffer of line writer file

gradle.properties

@@ -1,4 +1,4 @@
 project_group = me.topchetoeu
 project_name = jscript
-project_version = 0.8.6-beta
+project_version = 0.9.6-beta
 main_class = me.topchetoeu.jscript.utils.JScriptRepl

src/java/me/topchetoeu/jscript/common/Buffer.java

@@ -24,6 +24,11 @@ public class Buffer {
         return n;
     }
 
+    public void clear() {
+        data = new byte[128];
+        length = 0;
+    }
+
     public void append(byte b) {
         write(length, new byte[] { b });
     }

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

@@ -24,12 +24,12 @@ public class GlobalScope {
     }
 
     public Object define(Context ctx, String name) {
-        if (Values.hasMember(Context.NULL, obj, name, false)) return name;
-        obj.defineProperty(Context.NULL, name, null);
+        if (Values.hasMember(ctx, obj, name, false)) return name;
+        obj.defineProperty(ctx, name, null);
         return name;
     }
     public void define(Context ctx, String name, Variable val) {
-        obj.defineProperty(Context.NULL, name,
+        obj.defineProperty(ctx, name,
             new NativeFunction("get " + name, args -> val.get(args.ctx)),
             new NativeFunction("set " + name, args -> { val.set(args.ctx, args.get(0)); return null; }),
             true, true
@@ -42,7 +42,7 @@ public class GlobalScope {
         for (var n : names) define(ctx, n);
     }
     public void define(Context ctx, boolean readonly, FunctionValue val) {
-        define(null, val.name, readonly, val);
+        define(ctx, val.name, readonly, val);
     }
 
     public Object get(Context ctx, String name) {

src/java/me/topchetoeu/jscript/core/values/NativeWrapper.java

@@ -8,7 +8,7 @@ public class NativeWrapper extends ObjectValue {
 
     @Override
     public ObjectValue getPrototype(Context ctx) {
-        if (prototype == NATIVE_PROTO) return ctx.environment.wrappers.getProto(wrapped.getClass());
+        if (ctx.environment != null && prototype == NATIVE_PROTO) return ctx.environment.wrappers.getProto(wrapped.getClass());
         else return super.getPrototype(ctx);
     }
 

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

@@ -99,6 +99,7 @@ public interface File {
                         if (b == '\n') {
                             try {
                                 writer.writeLine(new String(buff.data()));
+                                buff.clear();
                             }
                             catch (IOException e) {
                                 throw new FilesystemException(ErrorReason.UNKNOWN, e.getMessage());