refactor: inline reflect append fast paths

internal/reflect/append_list_gen.go → internal/reflect/append_list_fast.go

@@ -18,8 +18,7 @@ package reflect
 
 import "unsafe"
 
-// This File is generated by append_gen.sh. DO NOT EDIT.
-// Template and code can be found in append_list_gen_test.go.
+// Predefined fast paths for common list element types.
 
 func init() {
 	registerListAppendFunc(tBYTE, appendList_I08)

internal/reflect/append_list_fast_test.go

@@ -0,0 +1,82 @@
+/*
+ * 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 reflect
+
+import (
+	"testing"
+
+	"github.com/cloudwego/frugal/internal/assert"
+)
+
+func TestAppendListFastPaths(t *testing.T) {
+
+	type EnumType int64
+
+	type Msg struct {
+		X int64 `frugal:"1,default,i64"`
+		Y int64 `frugal:"2,default,i64"`
+	}
+
+	type TestStruct struct {
+		L1 []int8     `frugal:"1,optional,list<i8>"`
+		L2 []int16    `frugal:"2,optional,list<i16>"`
+		L3 []int32    `frugal:"3,optional,list<i32>"`
+		L4 []int64    `frugal:"4,optional,list<i64>"`
+		L5 []EnumType `frugal:"5,optional,list<EnumType>"`
+		L6 []string   `frugal:"6,optional,list<string>"`
+		L7 []*Msg     `frugal:"7,optional,list<Msg>"`
+	}
+
+	var p0, p1 *TestStruct
+	var b []byte
+	var err error
+
+	p0 = &TestStruct{
+		L1: []int8{11, 12},
+		L2: []int16{21, 22},
+		L3: []int32{31, 32},
+		L4: []int64{41, 42},
+		L5: []EnumType{51, 52},
+		L6: []string{"61", "62"},
+		L7: []*Msg{{X: 71, Y: 72}, {X: 73, Y: 74}},
+	}
+	b, err = Append(nil, p0)
+	assert.Nil(t, err)
+
+	p1 = &TestStruct{}
+	_, err = Decode(b, p1)
+	assert.Nil(t, err)
+	assert.DeepEqual(t, p0, p1)
+
+	// Empty list
+	p0 = &TestStruct{
+		L1: []int8{},
+		L2: []int16{},
+		L3: []int32{},
+		L4: []int64{},
+		L5: []EnumType{},
+		L6: []string{},
+		L7: []*Msg{},
+	}
+	b, err = Append(nil, p0)
+	assert.Nil(t, err)
+
+	p1 = &TestStruct{}
+	_, err = Decode(b, p1)
+	assert.Nil(t, err)
+	assert.DeepEqual(t, p0, p1)
+}