处理AI胡乱生成的乱摊子

vendor/github.com/bytedance/sonic/ast/iterator.go

@@ -82,26 +82,54 @@ type ObjectIterator struct {
     Iterator
 }
 
+func (self *ListIterator) next() *Node {
+next_start:
+    if !self.HasNext() {
+        return nil
+    } else {
+        n := self.p.nodeAt(self.i)
+        self.i++
+        if !n.Exists() {
+            goto next_start
+        }
+        return n
+    }
+}
+
 // Next scans through children of underlying V_ARRAY, 
 // copies each child to v, and returns .HasNext().
 func (self *ListIterator) Next(v *Node) bool {
-    if !self.HasNext() {
+    n := self.next()
+    if n == nil {
         return false
+    }
+    *v = *n
+    return true
+}
+
+func (self *ObjectIterator) next() *Pair {
+next_start:
+    if !self.HasNext() {
+        return nil
     } else {
-        *v, self.i = *self.p.nodeAt(self.i), self.i + 1
-        return true
+        n := self.p.pairAt(self.i)
+        self.i++
+        if !n.Value.Exists() {
+            goto next_start
+        }
+        return n
     }
 }
 
 // Next scans through children of underlying V_OBJECT, 
 // copies each child to v, and returns .HasNext().
 func (self *ObjectIterator) Next(p *Pair) bool {
-    if !self.HasNext() {
+    n := self.next()
+    if n == nil {
         return false
-    } else {
-        *p, self.i = *self.p.pairAt(self.i), self.i + 1
-        return true
     }
+    *p = *n
+    return true
 }
 
 // Sequence represents scanning path of single-layer nodes.
@@ -129,36 +157,39 @@ type Scanner func(path Sequence, node *Node) bool
 //
 // Especailly, if the node is not V_ARRAY or V_OBJECT, 
 // the node itself will be returned and Sequence.Index == -1.
+// 
+// NOTICE: A unsetted node WON'T trigger sc, but its index still counts into Path.Index
 func (self *Node) ForEach(sc Scanner) error {
     switch self.itype() {
     case types.V_ARRAY:
-        ns, err := self.UnsafeArray()
+        iter, err := self.Values()
         if err != nil {
             return err
         }
-        for i := range ns {
-            if !sc(Sequence{i, nil}, &ns[i]) {
-                return err
+        v := iter.next()
+        for v != nil {
+            if !sc(Sequence{iter.i-1, nil}, v) {
+                return nil
             }
+            v = iter.next()
         }
     case types.V_OBJECT:
-        ns, err := self.UnsafeMap()
+        iter, err := self.Properties()
         if err != nil {
             return err
         }
-        for i := range ns {
-            if !sc(Sequence{i, &ns[i].Key}, &ns[i].Value) {
-                return err
+        v := iter.next()
+        for v != nil {
+            if !sc(Sequence{iter.i-1, &v.Key}, &v.Value) {
+                return nil
             }
+            v = iter.next()
         }
     default:
+        if self.Check() != nil {
+            return self
+        }
         sc(Sequence{-1, nil}, self)
     }
-    return self.Check()
+    return nil
 }
-
-type PairSlice []Pair
-
-func (self PairSlice) Sort() {
-    radixQsort(self, 0, maxDepth(len(self)))
-}