refactor: rewrite appendPath to use moonlight

api.go

@@ -39,8 +39,8 @@ var hshMod *moonlight.Table
 func hilbishLoader(mlr *moonlight.Runtime) moonlight.Value {
 	var exports = map[string]moonlight.Export{
 		"alias": {hlalias, 2, false},
-		/*
 		"appendPath": {hlappendPath, 1, false},
+		/*
 		"complete": {hlcomplete, 2, false},
 		*/
 		"cwd": {hlcwd, 0, false},
@@ -468,20 +468,21 @@ hilbish.appendPath {
 	'~/.local/bin'
 }
 #example
-func hlappendPath(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
+*/
-	if err := c.Check1Arg(); err != nil {
+func hlappendPath(mlr *moonlight.Runtime, c *moonlight.GoCont) (moonlight.Cont, error) {
+	if err := mlr.Check1Arg(c); err != nil {
 		return nil, err
 	}
-	arg := c.Arg(0)
+	arg := mlr.Arg(c, 0)
 
 	// check if dir is a table or a string
-	if arg.Type() == rt.TableType {
+	if moonlight.Type(arg) == moonlight.TableType {
-		util.ForEach(arg.AsTable(), func(k rt.Value, v rt.Value) {
+		moonlight.ForEach(moonlight.ToTable(arg), func(_ moonlight.Value, v moonlight.Value) {
-			if v.Type() == rt.StringType {
+			if moonlight.Type(v) == moonlight.StringType {
-				appendPath(v.AsString())
+				appendPath(moonlight.ToString(v))
 			}
 		})
-	} else if arg.Type() == rt.StringType {
+	} else if moonlight.Type(arg) == moonlight.StringType {
 		appendPath(arg.AsString())
 	} else {
 		return nil, errors.New("bad argument to appendPath (expected string or table, got " + arg.TypeName() + ")")
@@ -500,6 +501,7 @@ func appendPath(dir string) {
 	}
 }
 
+/*
 // exec(cmd)
 // Replaces the currently running Hilbish instance with the supplied command.
 // This can be used to do an in-place restart.

moonlight/table_golua.go

@@ -26,8 +26,27 @@ func (t *Table) Set(key Value, value Value) {
 	t.lt.Set(key, value)
 }
 
+func ForEach(tbl *Table, cb func(key Value, val Value)) {
+	nextVal := rt.NilValue
+	for {
+		key, val, _ := tbl.lt.Next(nextVal)
+		if key == rt.NilValue {
+			break
+		}
+		nextVal = key
+
+		cb(Value(key), Value(val))
+	}
+}
+
 func (mlr *Runtime) GlobalTable() *Table {
 	return &Table{
 		lt: mlr.rt.GlobalEnv(),
 	}
 }
+
+func convertToMoonlightTable(t *rt.Table) *Table {
+	return &Table{
+		lt: t,
+	}
+}

moonlight/value_golua.go

@@ -9,6 +9,7 @@ type ValueType = rt.ValueType
 const (
 	StringType = rt.StringType
 	FunctionType = rt.FunctionType
+	TableType = rt.TableType
 )
 
 func StringValue(str string) Value {
@@ -30,3 +31,11 @@ func TableValue(t *Table) Value {
 func Type(v Value) ValueType {
 	return ValueType(v.Type())
 }
+
+func ToString(v Value) string {
+	return v.AsString()
+}
+
+func ToTable(v Value) *Table {
+	return convertToMoonlightTable(v.AsTable())
+}