1 files changed, 183 insertions, 0 deletions
diff --git a/vendor/github.com/bytedance/sonic/loader/internal/rt/fastvalue.go b/vendor/github.com/bytedance/sonic/loader/internal/rt/fastvalue.go
new file mode 100644
index 000000000..e6c5bc869
--- /dev/null
+++ b/vendor/github.com/bytedance/sonic/loader/internal/rt/fastvalue.go
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2021 ByteDance Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rt
+
+import (
+    `reflect`
+    `unsafe`
+)
+
+var (
+    reflectRtypeItab = findReflectRtypeItab()
+)
+
+// GoType.KindFlags const
+const (
+    F_direct    = 1 << 5
+    F_kind_mask = (1 << 5) - 1
+)
+
+// GoType.Flags const
+const (
+    tflagUncommon      uint8 = 1 << 0
+    tflagExtraStar     uint8 = 1 << 1
+    tflagNamed         uint8 = 1 << 2
+    tflagRegularMemory uint8 = 1 << 3
+)
+
+type GoType struct {
+    Size       uintptr
+    PtrData    uintptr
+    Hash       uint32
+    Flags      uint8
+    Align      uint8
+    FieldAlign uint8
+    KindFlags  uint8
+    Traits     unsafe.Pointer
+    GCData     *byte
+    Str        int32
+    PtrToSelf  int32
+}
+
+func (self *GoType) IsNamed() bool {
+    return (self.Flags & tflagNamed) != 0
+}
+
+func (self *GoType) Kind() reflect.Kind {
+    return reflect.Kind(self.KindFlags & F_kind_mask)
+}
+
+func (self *GoType) Pack() (t reflect.Type) {
+    (*GoIface)(unsafe.Pointer(&t)).Itab = reflectRtypeItab
+    (*GoIface)(unsafe.Pointer(&t)).Value = unsafe.Pointer(self)
+    return
+}
+
+func (self *GoType) String() string {
+    return self.Pack().String()
+}
+
+func (self *GoType) Indirect() bool {
+    return self.KindFlags & F_direct == 0
+}
+
+type GoItab struct {
+    it unsafe.Pointer
+    Vt *GoType
+    hv uint32
+    _  [4]byte
+    fn [1]uintptr
+}
+
+type GoIface struct {
+    Itab  *GoItab
+    Value unsafe.Pointer
+}
+
+type GoEface struct {
+    Type  *GoType
+    Value unsafe.Pointer
+}
+
+func (self GoEface) Pack() (v interface{}) {
+    *(*GoEface)(unsafe.Pointer(&v)) = self
+    return
+}
+
+type GoPtrType struct {
+    GoType
+    Elem *GoType
+}
+
+type GoMapType struct {
+    GoType
+    Key        *GoType
+    Elem       *GoType
+    Bucket     *GoType
+    Hasher     func(unsafe.Pointer, uintptr) uintptr
+    KeySize    uint8
+    ElemSize   uint8
+    BucketSize uint16
+    Flags      uint32
+}
+
+func (self *GoMapType) IndirectElem() bool {
+    return self.Flags & 2 != 0
+}
+
+type GoStructType struct {
+    GoType
+    Pkg    *byte
+    Fields []GoStructField
+}
+
+type GoStructField struct {
+    Name     *byte
+    Type     *GoType
+    OffEmbed uintptr
+}
+
+type GoInterfaceType struct {
+    GoType
+    PkgPath *byte
+    Methods []GoInterfaceMethod
+}
+
+type GoInterfaceMethod struct {
+    Name int32
+    Type int32
+}
+
+type GoSlice struct {
+    Ptr unsafe.Pointer
+    Len int
+    Cap int
+}
+
+type GoString struct {
+    Ptr unsafe.Pointer
+    Len int
+}
+
+func PtrElem(t *GoType) *GoType {
+    return (*GoPtrType)(unsafe.Pointer(t)).Elem
+}
+
+func MapType(t *GoType) *GoMapType {
+    return (*GoMapType)(unsafe.Pointer(t))
+}
+
+func IfaceType(t *GoType) *GoInterfaceType {
+    return (*GoInterfaceType)(unsafe.Pointer(t))
+}
+
+func UnpackType(t reflect.Type) *GoType {
+    return (*GoType)((*GoIface)(unsafe.Pointer(&t)).Value)
+}
+
+func UnpackEface(v interface{}) GoEface {
+    return *(*GoEface)(unsafe.Pointer(&v))
+}
+
+func UnpackIface(v interface{}) GoIface {
+    return *(*GoIface)(unsafe.Pointer(&v))
+}
+
+func findReflectRtypeItab() *GoItab {
+    v := reflect.TypeOf(struct{}{})
+    return (*GoIface)(unsafe.Pointer(&v)).Itab
+}