chat: fix case where template accepts type content only (#19419)

* chat: fix case where template accepts type content only

* rm stray log

* reuse render_message_to_json
This commit is contained in:
Xuan-Son Nguyen 2026-02-09 22:14:12 +01:00 committed by GitHub
parent 262364e31d
commit 98e57ca422
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GPG key ID: B5690EEEBB952194
5 changed files with 55 additions and 9 deletions

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@ -380,15 +380,46 @@ std::vector<common_chat_msg> common_chat_msgs_parse_oaicompat(const json & messa
return msgs;
}
json common_chat_msgs_to_json_oaicompat(const std::vector<common_chat_msg> & msgs, bool concat_typed_text) {
static json render_message_to_json(const std::vector<common_chat_msg> & msgs, const jinja::caps & c) {
if (!c.supports_string_content && !c.supports_typed_content) {
LOG_WRN("%s: Neither string content nor typed content is supported by the template. This is unexpected and may lead to issues.\n", __func__);
}
bool only_string_accepted = c.supports_string_content && !c.supports_typed_content;
bool only_typed_accepted = !c.supports_string_content && c.supports_typed_content;
json messages = json::array();
for (const auto & msg : msgs) {
json jmsg = msg.to_json_oaicompat(concat_typed_text);
messages.push_back(jmsg);
if (only_string_accepted) {
json jmsg = msg.to_json_oaicompat(/* concat_typed_text= */ true);
messages.push_back(jmsg);
} else if (only_typed_accepted) {
json jmsg = msg.to_json_oaicompat(/* concat_typed_text= */ false);
if (jmsg.at("content").is_string()) {
jmsg["content"] = json::array({
json{
{"type", "text"},
{"text", jmsg.at("content").get<std::string>()},
}
});
}
messages.push_back(jmsg);
} else {
json jmsg = msg.to_json_oaicompat(/* concat_typed_text= */ false);
messages.push_back(jmsg);
}
}
return messages;
}
// DEPRECATED: only used in tests
json common_chat_msgs_to_json_oaicompat(const std::vector<common_chat_msg> & msgs, bool concat_typed_text) {
jinja::caps c;
c.supports_string_content = true;
c.supports_typed_content = !concat_typed_text;
return render_message_to_json(msgs, c);
}
std::vector<common_chat_tool> common_chat_tools_parse_oaicompat(const json & tools) {
std::vector<common_chat_tool> result;
@ -3020,7 +3051,7 @@ static common_chat_params common_chat_templates_apply_jinja(
: *tmpls->template_default;
const auto & src = tmpl.source();
const auto & caps = tmpl.original_caps();
params.messages = common_chat_msgs_to_json_oaicompat(inputs.messages, /* concat_text= */ !tmpl.original_caps().requires_typed_content);
params.messages = render_message_to_json(inputs.messages, tmpl.original_caps());
params.add_generation_prompt = inputs.add_generation_prompt;
params.tool_choice = inputs.tool_choice;
params.reasoning_format = inputs.reasoning_format;