fix empty (list)

2 files changed, 11 insertions, 3 deletions

diff --git a/compiler.d b/compiler.d
index 5b06f4c..a436323 100644
--- a/compiler.d
+++ b/compiler.d
@@ -615,6 +615,12 @@ class Compiler {
     }
 
     void compileList(Form[] args) {
+        if (args.length == 0) {
+            this.func.chunk.writeOp(OpCode.OP_LIST, -1);
+            this.func.chunk.writeOp(to!ubyte(0), -1);
+            this.advance();
+            return;
+        }
         int length = to!int(args.length);
         foreach (Form arg ; args) {
             resolve(arg, ValueType.ANY); // resolve everything onto the stack
diff --git a/vm.d b/vm.d
index d4fab80..68a148e 100644
--- a/vm.d
+++ b/vm.d
@@ -396,9 +396,11 @@ class VM {
                 case OpCode.OP_LIST:
                     int length = to!int(this.readByte());
                     List lst = new List(length);
-                    for (int i = length - 1; i >= 0; i--) {
-                        //lst.appendItem(this.popA());
-                        lst.addItemAtIndex(this.popA(), i);
+                    if (length > 0) {
+                        for (int i = length - 1; i >= 0; i--) {
+                            //lst.appendItem(this.popA());
+                            lst.addItemAtIndex(this.popA(), i);
+                        }
                     }
                     this.pushA(makeSeqValue(lst));
                     break;