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Diffstat (limited to 'vendor/github.com/cloudwego/base64x/faststr.go')
-rw-r--r--vendor/github.com/cloudwego/base64x/faststr.go51
1 files changed, 51 insertions, 0 deletions
diff --git a/vendor/github.com/cloudwego/base64x/faststr.go b/vendor/github.com/cloudwego/base64x/faststr.go
new file mode 100644
index 000000000..083d864f7
--- /dev/null
+++ b/vendor/github.com/cloudwego/base64x/faststr.go
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2024 CloudWeGo Authors
+ *
+ * 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 base64x
+
+import (
+ `reflect`
+ `unsafe`
+)
+
+func mem2str(v []byte) (s string) {
+ (*reflect.StringHeader)(unsafe.Pointer(&s)).Len = (*reflect.SliceHeader)(unsafe.Pointer(&v)).Len
+ (*reflect.StringHeader)(unsafe.Pointer(&s)).Data = (*reflect.SliceHeader)(unsafe.Pointer(&v)).Data
+ return
+}
+
+func str2mem(s string) (v []byte) {
+ (*reflect.SliceHeader)(unsafe.Pointer(&v)).Cap = (*reflect.StringHeader)(unsafe.Pointer(&s)).Len
+ (*reflect.SliceHeader)(unsafe.Pointer(&v)).Len = (*reflect.StringHeader)(unsafe.Pointer(&s)).Len
+ (*reflect.SliceHeader)(unsafe.Pointer(&v)).Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
+ return
+}
+
+func mem2addr(v []byte) unsafe.Pointer {
+ return *(*unsafe.Pointer)(unsafe.Pointer(&v))
+}
+
+// NoEscape hides a pointer from escape analysis. NoEscape is
+// the identity function but escape analysis doesn't think the
+// output depends on the input. NoEscape is inlined and currently
+// compiles down to zero instructions.
+// USE CAREFULLY!
+//go:nosplit
+//goland:noinspection GoVetUnsafePointer
+func noEscape(p unsafe.Pointer) unsafe.Pointer {
+ x := uintptr(p)
+ return unsafe.Pointer(x ^ 0)
+}