1 files changed, 61 insertions, 0 deletions
diff --git a/vendor/github.com/bytedance/sonic/internal/decoder/optdec/structs.go b/vendor/github.com/bytedance/sonic/internal/decoder/optdec/structs.go
new file mode 100644
index 000000000..bce2758f1
--- /dev/null
+++ b/vendor/github.com/bytedance/sonic/internal/decoder/optdec/structs.go
@@ -0,0 +1,61 @@
+package optdec
+
+import (
+	"reflect"
+	"unsafe"
+
+	caching "github.com/bytedance/sonic/internal/optcaching"
+	"github.com/bytedance/sonic/internal/resolver"
+)
+
+type fieldEntry struct {
+	resolver.FieldMeta
+	fieldDec decFunc
+}
+
+type structDecoder struct {
+	fieldMap   caching.FieldLookup
+	fields     []fieldEntry
+	structName string
+	typ        reflect.Type
+}
+
+func (d *structDecoder) FromDom(vp unsafe.Pointer, node Node, ctx *context) error {
+	if node.IsNull() {
+		return nil
+	}
+
+	var gerr error
+	obj, ok := node.AsObj()
+	if !ok {
+		return error_mismatch(node, ctx, d.typ)
+	}
+
+	next := obj.Children()
+	for i := 0; i < obj.Len(); i++ {
+		key, _ := NewNode(next).AsStrRef(ctx)
+		val := NewNode(PtrOffset(next, 1))
+		next = val.Next()
+
+		// find field idx
+		idx := d.fieldMap.Get(key)
+        if idx == -1 {
+            if Options(ctx.Options())&OptionDisableUnknown != 0 {
+                return error_field(key)
+            }
+            continue
+        }
+
+		offset := d.fields[idx].Path[0].Size
+		elem := unsafe.Pointer(uintptr(vp) + offset)
+		err := d.fields[idx].fieldDec.FromDom(elem, val, ctx)
+
+		// deal with mismatch type errors
+		if gerr == nil && err != nil {
+			// TODO: better error info
+			gerr = err
+		}
+	}
+	return gerr
+}
+