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Merge pull request #524 from mattn/perf/strings-builder

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Use strings.Builder instead of += concatenation in loops
This commit is contained in:
Meng Zhuo
2026-02-20 23:24:47 +08:00
committed by GitHub
parent 1ef33c90ed df49f6698a
commit 55227762e4
3 changed files with 57 additions and 63 deletions
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pkg/agent/loop.go
+29 -25
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@@ -828,49 +828,49 @@ func formatMessagesForLog(messages []providers.Message) string {
return "[]"
}
var result string
result += "[\n"
var sb strings.Builder
sb.WriteString("[\n")
for i, msg := range messages {
result += fmt.Sprintf(" [%d] Role: %s\n", i, msg.Role)
fmt.Fprintf(&sb, " [%d] Role: %s\n", i, msg.Role)
if len(msg.ToolCalls) > 0 {
result += " ToolCalls:\n"
sb.WriteString(" ToolCalls:\n")
for _, tc := range msg.ToolCalls {
result += fmt.Sprintf(" - ID: %s, Type: %s, Name: %s\n", tc.ID, tc.Type, tc.Name)
fmt.Fprintf(&sb, " - ID: %s, Type: %s, Name: %s\n", tc.ID, tc.Type, tc.Name)
if tc.Function != nil {
result += fmt.Sprintf(" Arguments: %s\n", utils.Truncate(tc.Function.Arguments, 200))
fmt.Fprintf(&sb, " Arguments: %s\n", utils.Truncate(tc.Function.Arguments, 200))
}
}
}
if msg.Content != "" {
content := utils.Truncate(msg.Content, 200)
result += fmt.Sprintf(" Content: %s\n", content)
fmt.Fprintf(&sb, " Content: %s\n", content)
}
if msg.ToolCallID != "" {
result += fmt.Sprintf(" ToolCallID: %s\n", msg.ToolCallID)
fmt.Fprintf(&sb, " ToolCallID: %s\n", msg.ToolCallID)
}
result += "\n"
sb.WriteString("\n")
}
result += "]"
return result
sb.WriteString("]")
return sb.String()
}
// formatToolsForLog formats tool definitions for logging
func formatToolsForLog(tools []providers.ToolDefinition) string {
if len(tools) == 0 {
func formatToolsForLog(toolDefs []providers.ToolDefinition) string {
if len(toolDefs) == 0 {
return "[]"
}
var result string
result += "[\n"
for i, tool := range tools {
result += fmt.Sprintf(" [%d] Type: %s, Name: %s\n", i, tool.Type, tool.Function.Name)
result += fmt.Sprintf(" Description: %s\n", tool.Function.Description)
var sb strings.Builder
sb.WriteString("[\n")
for i, tool := range toolDefs {
fmt.Fprintf(&sb, " [%d] Type: %s, Name: %s\n", i, tool.Type, tool.Function.Name)
fmt.Fprintf(&sb, " Description: %s\n", tool.Function.Description)
if len(tool.Function.Parameters) > 0 {
result += fmt.Sprintf(" Parameters: %s\n", utils.Truncate(fmt.Sprintf("%v", tool.Function.Parameters), 200))
fmt.Fprintf(&sb, " Parameters: %s\n", utils.Truncate(fmt.Sprintf("%v", tool.Function.Parameters), 200))
}
}
result += "]"
return result
sb.WriteString("]")
return sb.String()
}
// summarizeSession summarizes the conversation history for a session.
@@ -946,14 +946,18 @@ func (al *AgentLoop) summarizeSession(agent *AgentInstance, sessionKey string) {
// summarizeBatch summarizes a batch of messages.
func (al *AgentLoop) summarizeBatch(ctx context.Context, agent *AgentInstance, batch []providers.Message, existingSummary string) (string, error) {
prompt := "Provide a concise summary of this conversation segment, preserving core context and key points.\n"
var sb strings.Builder
sb.WriteString("Provide a concise summary of this conversation segment, preserving core context and key points.\n")
if existingSummary != "" {
prompt += "Existing context: " + existingSummary + "\n"
sb.WriteString("Existing context: ")
sb.WriteString(existingSummary)
sb.WriteString("\n")
}
prompt += "\nCONVERSATION:\n"
sb.WriteString("\nCONVERSATION:\n")
for _, m := range batch {
prompt += fmt.Sprintf("%s: %s\n", m.Role, m.Content)
fmt.Fprintf(&sb, "%s: %s\n", m.Role, m.Content)
}
prompt := sb.String()
response, err := agent.Provider.Chat(ctx, []providers.Message{{Role: "user", Content: prompt}}, nil, agent.Model, map[string]interface{}{
"max_tokens": 1024,