1 files changed, 165 insertions, 0 deletions
diff --git a/vendor/github.com/bytedance/sonic/internal/rt/stubs.go b/vendor/github.com/bytedance/sonic/internal/rt/stubs.go
new file mode 100644
index 000000000..5104a0793
--- /dev/null
+++ b/vendor/github.com/bytedance/sonic/internal/rt/stubs.go
@@ -0,0 +1,165 @@
+/*
+ * 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"
+)
+
+//go:noescape
+//go:linkname Memmove runtime.memmove
+func Memmove(to unsafe.Pointer, from unsafe.Pointer, n uintptr)
+
+//go:linkname Mapiternext runtime.mapiternext
+func Mapiternext(it *GoMapIterator)
+
+//go:linkname Mapiterinit runtime.mapiterinit
+func Mapiterinit(t *GoMapType, m *GoMap, it *GoMapIterator)
+
+//go:linkname IsValidNumber encoding/json.isValidNumber
+func IsValidNumber(s string) bool
+
+//go:nosplit
+//go:linkname MemclrHasPointers runtime.memclrHasPointers
+//goland:noinspection GoUnusedParameter
+func MemclrHasPointers(ptr unsafe.Pointer, n uintptr)
+
+//go:linkname MemclrNoHeapPointers runtime.memclrNoHeapPointers
+//goland:noinspection GoUnusedParameter
+func MemclrNoHeapPointers(ptr unsafe.Pointer, n uintptr)
+
+//go:linkname newarray runtime.newarray
+func newarray(typ *GoType, n int) unsafe.Pointer 
+
+func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
+	return unsafe.Pointer(uintptr(p) + x)
+}
+
+func ClearMemory(et *GoType, ptr unsafe.Pointer, size uintptr) {
+	if et.PtrData == 0 {
+		MemclrNoHeapPointers(ptr, size)
+	} else {
+		MemclrHasPointers(ptr, size)
+	}
+}
+
+// runtime.maxElementSize
+const _max_map_element_size uintptr = 128
+
+func IsMapfast(vt reflect.Type) bool {
+	return vt.Elem().Size() <= _max_map_element_size
+}
+
+//go:linkname Mallocgc runtime.mallocgc
+//goland:noinspection GoUnusedParameter
+func Mallocgc(size uintptr, typ *GoType, needzero bool) unsafe.Pointer
+
+//go:linkname Makemap reflect.makemap
+func Makemap(*GoType, int) unsafe.Pointer
+
+//go:linkname Mapassign runtime.mapassign
+//goland:noinspection GoUnusedParameter
+func Mapassign(t *GoMapType, h unsafe.Pointer, k unsafe.Pointer) unsafe.Pointer
+
+//go:linkname Mapassign_fast32 runtime.mapassign_fast32
+//goland:noinspection GoUnusedParameter
+func Mapassign_fast32(t *GoMapType, h unsafe.Pointer, k uint32) unsafe.Pointer
+
+//go:linkname Mapassign_fast64 runtime.mapassign_fast64
+//goland:noinspection GoUnusedParameter
+func Mapassign_fast64(t *GoMapType, h unsafe.Pointer, k uint64) unsafe.Pointer
+
+//go:linkname Mapassign_faststr runtime.mapassign_faststr
+//goland:noinspection GoUnusedParameter
+func Mapassign_faststr(t *GoMapType, h unsafe.Pointer, s string) unsafe.Pointer
+
+type MapStrAssign func (t *GoMapType, h unsafe.Pointer, s string) unsafe.Pointer
+
+func GetMapStrAssign(vt reflect.Type) MapStrAssign {
+	if IsMapfast(vt) {
+		return Mapassign_faststr
+	} else {
+		return func (t *GoMapType, h unsafe.Pointer, s string) unsafe.Pointer {
+			return Mapassign(t, h, unsafe.Pointer(&s))
+		}
+	}
+}
+
+type Map32Assign func(t *GoMapType, h unsafe.Pointer, k uint32) unsafe.Pointer
+
+func GetMap32Assign(vt reflect.Type) Map32Assign {
+	if IsMapfast(vt) {
+		return Mapassign_fast32
+	} else {
+		return func (t *GoMapType, h unsafe.Pointer, s uint32) unsafe.Pointer {
+			return Mapassign(t, h, unsafe.Pointer(&s))
+		}
+	}
+}
+
+type Map64Assign func(t *GoMapType, h unsafe.Pointer, k uint64) unsafe.Pointer
+
+func GetMap64Assign(vt reflect.Type) Map64Assign {
+	if IsMapfast(vt) {
+		return Mapassign_fast64
+	} else {
+		return func (t *GoMapType, h unsafe.Pointer, s uint64) unsafe.Pointer {
+			return Mapassign(t, h, unsafe.Pointer(&s))
+		}
+	}
+}
+
+
+var emptyBytes = make([]byte, 0, 0)
+var EmptySlice = *(*GoSlice)(unsafe.Pointer(&emptyBytes))
+
+//go:linkname makeslice runtime.makeslice
+//goland:noinspection GoUnusedParameter
+func makeslice(et *GoType, len int, cap int) unsafe.Pointer
+
+func MakeSlice(oldPtr unsafe.Pointer, et *GoType, newLen int) *GoSlice {
+	if newLen == 0 {
+		return &EmptySlice
+	}
+
+	if *(*unsafe.Pointer)(oldPtr) == nil {
+		return &GoSlice{
+			Ptr: makeslice(et, newLen, newLen),
+			Len: newLen,
+			Cap: newLen,
+		}
+	}
+
+	old := (*GoSlice)(oldPtr)
+	if old.Cap >= newLen {
+		old.Len = newLen
+		return old
+	}
+
+	new := GrowSlice(et, *old, newLen)
+
+	// we sould clear the memory from [oldLen:newLen]
+	if et.PtrData == 0 {
+		oldlenmem := uintptr(old.Len) * et.Size
+		newlenmem := uintptr(newLen) * et.Size
+		MemclrNoHeapPointers(add(new.Ptr, oldlenmem), newlenmem-oldlenmem)
+	}
+
+	new.Len = newLen
+	return &new
+}