From aca3a0522264237d1dfe99de56a4935986b3431f Mon Sep 17 00:00:00 2001
From: luoliwoshang <2643523683@qq.com>
Date: Mon, 29 Jul 2024 20:36:04 +0800
Subject: [PATCH] c/clang/symg:abstract json item fetch

---
 c/cjson/cjson.go                    |  2 --
 chore/_xtool/llcppsymg/llcppsymg.go | 34 +++++++++++++++++++++--------
 2 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/c/cjson/cjson.go b/c/cjson/cjson.go
index 51edb48e..af969e2d 100644
--- a/c/cjson/cjson.go
+++ b/c/cjson/cjson.go
@@ -137,8 +137,6 @@ func (o *JSON) PrintBuffered(prebuffer c.Int, fmt c.Int) *c.Char { return nil }
 // llgo:link (*JSON).GetObjectItemCaseSensitive C.cJSON_GetObjectItemCaseSensitive
 func (o *JSON) GetObjectItemCaseSensitive(key *c.Char) *JSON { return nil }
 
-func (o *JSON) GetItem(key string) *JSON { return o.GetObjectItemCaseSensitive(c.AllocaCStr(key)) }
-
 // llgo:link (*JSON).GetArraySize C.cJSON_GetArraySize
 func (o *JSON) GetArraySize() c.Int { return 0 }
 
diff --git a/chore/_xtool/llcppsymg/llcppsymg.go b/chore/_xtool/llcppsymg/llcppsymg.go
index 33aabe67..0296e0fa 100644
--- a/chore/_xtool/llcppsymg/llcppsymg.go
+++ b/chore/_xtool/llcppsymg/llcppsymg.go
@@ -52,6 +52,8 @@ func main() {
 	check(err)
 
 	config, err := getConf(data)
+	check(err)
+
 	if err != nil {
 		fmt.Fprintln(os.Stderr, "Failed to parse config file:", cfgFile)
 	}
@@ -95,16 +97,30 @@ func getConf(data []byte) (config types.Config, err error) {
 	if conf == nil {
 		return config, errors.New("failed to parse config")
 	}
-	config.Name = c.GoString(conf.GetItem("name").GetStringValue())
-	config.CFlags = c.GoString(conf.GetItem("cflags").GetStringValue())
-	config.Libs = c.GoString(conf.GetItem("libs").GetStringValue())
-	config.Include = make([]string, conf.GetItem("include").GetArraySize())
-	for i := range config.Include {
-		config.Include[i] = c.GoString(conf.GetItem("include").GetArrayItem(c.Int(i)).GetStringValue())
+	config.Name = getStringItem(conf, "name", "")
+	config.CFlags = getStringItem(conf, "cflags", "")
+	config.Libs = getStringItem(conf, "libs", "")
+	config.Include = getStringArrayItem(conf, "include")
+	config.TrimPrefixes = getStringArrayItem(conf, "trimPrefixes")
+	return
+}
+
+func getStringItem(obj *cjson.JSON, key string, defval string) (value string) {
+	item := obj.GetObjectItemCaseSensitive(c.AllocaCStr(key))
+	if item == nil {
+		return defval
 	}
-	config.TrimPrefixes = make([]string, conf.GetItem("trimPrefixes").GetArraySize())
-	for i := range config.TrimPrefixes {
-		config.TrimPrefixes[i] = c.GoString(conf.GetItem("trimPrefixes").GetArrayItem(c.Int(i)).GetStringValue())
+	return c.GoString(item.GetStringValue())
+}
+
+func getStringArrayItem(obj *cjson.JSON, key string) (value []string) {
+	item := obj.GetObjectItemCaseSensitive(c.AllocaCStr(key))
+	if item == nil {
+		return
+	}
+	value = make([]string, item.GetArraySize())
+	for i := range value {
+		value[i] = c.GoString(item.GetArrayItem(c.Int(i)).GetStringValue())
 	}
 	return
 }