[chore] Update gin to v1.9.0 (#1553)

vendor/github.com/bytedance/sonic/encoder/utils.go

@@ -0,0 +1,52 @@
+/*
+ * 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 encoder
+
+import (
+    `encoding/json`
+    `unsafe`
+
+    `github.com/bytedance/sonic/loader`
+)
+
+//go:nosplit
+func padd(p unsafe.Pointer, v int) unsafe.Pointer {
+    return unsafe.Pointer(uintptr(p) + uintptr(v))
+}
+
+//go:nosplit
+func ptoenc(p loader.Function) _Encoder {
+    return *(*_Encoder)(unsafe.Pointer(&p))
+}
+
+func compact(p *[]byte, v []byte) error {
+    buf := newBuffer()
+    err := json.Compact(buf, v)
+
+    /* check for errors */
+    if err != nil {
+        return err
+    }
+
+    /* add to result */
+    v = buf.Bytes()
+    *p = append(*p, v...)
+
+    /* return the buffer into pool */
+    freeBuffer(buf)
+    return nil
+}