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log_help: Fix mem leaks

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`_content` vector owns elements so that when the `ContentListing` is deleted so is the content.
Remove `get_content()` method in favour of `begin()` and `end()` const iterators.
More `const` in general, and iterations over `ContentListing` use `&content` to avoid copying data.
This commit is contained in:
Krystine Sherwin 2025-07-23 12:24:14 +12:00
parent c4f685c057
commit 3e8746e78b
No known key found for this signature in database
3 changed files with 31 additions and 36 deletions
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27
kernel/log_help.cc
View file

@ -21,7 +21,7 @@
USING_YOSYS_NAMESPACE
Json ContentListing::to_json() {
Json ContentListing::to_json() const {
Json::object object;
object["type"] = type;
if (body.length()) object["body"] = body;
@ -29,7 +29,7 @@ Json ContentListing::to_json() {
if (source_line != 0) object["source_line"] = source_line;
object["options"] = Json(options);
Json::array content_array;
for (auto child : _content) content_array.push_back(child->to_json());
for (auto child : _content) content_array.push_back(child.to_json());
object["content"] = content_array;
return object;
}
@ -73,9 +73,8 @@ ContentListing* ContentListing::open_option(const string &text,
const source_location location)
{
log_assert(type.compare("root") == 0 || type.compare("usage") == 0);
auto option = new ContentListing("option", text, location);
add_content(option);
return option;
add_content("option", text, location);
return back();
}
#define MAX_LINE_LEN 80
@ -131,20 +130,20 @@ PrettyHelp *PrettyHelp::get_current()
return current_help;
}
void PrettyHelp::log_help()
void PrettyHelp::log_help() const
{
for (auto content : _root_listing.get_content()) {
if (content->type.compare("usage") == 0) {
log_pass_str(content->body, 1, true);
for (auto &content : _root_listing) {
if (content.type.compare("usage") == 0) {
log_pass_str(content.body, 1, true);
log("\n");
} else if (content->type.compare("option") == 0) {
log_pass_str(content->body, 1);
for (auto text : content->get_content()) {
log_pass_str(text->body, 2);
} else if (content.type.compare("option") == 0) {
log_pass_str(content.body, 1);
for (auto text : content) {
log_pass_str(text.body, 2);
log("\n");
}
} else {
log_pass_str(content->body, 0);
log_pass_str(content.body, 0);
log("\n");
}
}

36
kernel/log_help.h
View file

@ -26,7 +26,7 @@
YOSYS_NAMESPACE_BEGIN
class ContentListing {
vector<ContentListing *> _content;
vector<ContentListing> _content;
public:
string type;
string body;
@ -45,22 +45,17 @@ public:
ContentListing(string type, string body, source_location location) :
ContentListing(type, body, location.file_name(), location.line()) { }
void add_content(ContentListing *new_content) {
_content.push_back(new_content);
}
void add_content(string type, string body, source_location location) {
auto new_content = new ContentListing(type, body, location);
add_content(new_content);
_content.push_back({type, body, location});
}
bool has_content() { return _content.size() != 0; }
const vector<ContentListing *> get_content() {
const vector<ContentListing *> content = _content;
return content;
}
bool has_content() const { return _content.size() != 0; }
vector<ContentListing>::const_iterator begin() const { return _content.cbegin(); }
vector<ContentListing>::const_iterator end() const { return _content.cend(); }
ContentListing* back() {
return _content.back();
return &_content.back();
}
void set_option(string key, string val = "") {
@ -95,7 +90,7 @@ public:
const source_location location = source_location::current()
);
Json to_json();
Json to_json() const;
};
class PrettyHelp
@ -113,18 +108,19 @@ public:
static PrettyHelp *get_current();
bool has_content() { return _root_listing.has_content(); }
const vector<ContentListing *> get_content() {
return _root_listing.get_content();
}
bool has_content() const { return _root_listing.has_content(); }
vector<ContentListing>::const_iterator begin() const { return _root_listing.begin(); }
vector<ContentListing>::const_iterator end() const { return _root_listing.end(); }
ContentListing* get_root() {
return &_root_listing;
}
void set_group(const string g) { group = g; }
bool has_group() { return group.compare("unknown") != 0; }
bool has_group() const { return group.compare("unknown") != 0; }
void log_help();
void log_help() const;
};
YOSYS_NAMESPACE_END

4
kernel/register.cc
View file

@ -923,8 +923,8 @@ struct HelpPass : public Pass {
json.name(name.c_str()); json.begin_object();
json.entry("title", title);
json.name("content"); json.begin_array();
for (auto content : cmd_help.get_content())
json.value(content->to_json());
for (auto &content : cmd_help)
json.value(content.to_json());
json.end_array();
json.entry("group", cmd_help.group);
json.entry("source_file", pass->location.file_name());