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Fix Alloc-Dealloc mismatches #1943

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Merged
zawata merged 3 commits into from
Nov 26, 2025
+26 −17
Merged

Fix Alloc-Dealloc mismatches #1943

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03b5353
Fix Alloc-Dealloc Mismatches
Oct 15, 2022
03ce68b
add a couple more fixes from julian
Oct 18, 2022
231f472
add yet more fixes from Julian
Oct 19, 2022
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add yet more fixes from Julian
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John Alden
John Alden committed Nov 26, 2025
commit 231f4721dc97775c1a22ba267ced7e9885bcdf33
7 changes: 4 additions & 3 deletions generate/templates/partials/async_function.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -56,20 +56,21 @@ NAN_METHOD({{ cppClassName }}::{{ cppFunctionName }}) {
{% if arg.cppClassName == 'Array' %}
{
v8::Local<v8::Array> tempArray = v8::Local<v8::Array>::Cast(info[{{ arg.jsArg }}]);
baton->{{ arg.name }} = new {{ arg.cType|unPointer }}[tempArray->Length()];
baton->{{ arg.name }} = ({{ arg.cType|unPointer }}*)malloc(sizeof({{ arg.cType|unPointer }}) * tempArray->Length());
for (uint32_t i = 0; i < tempArray->Length(); ++i) {
auto conversionResult = Configurable{{ arg.arrayElementCppClassName }}::fromJavascript(
nodegitContext,
Nan::Get(tempArray, i).ToLocalChecked()
);

if (!conversionResult.result) {
delete[] baton->{{ arg.name }};
// TODO free previously allocated memory

@ianhattendorf ianhattendorf Oct 31, 2022

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Does this still need to be handled?

@zawata zawata Nov 3, 2022 •
edited
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@julianmesa-gitkraken this comment came from you.

@julianmesa-gitkraken julianmesa-gitkraken Nov 7, 2022 •
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Yes but I will do it in another PR. I need to store all allocated memory in a map, then if I get an error reading javascript arguments we have to release all allocated memory, then throw the error.

free(baton->{{ arg.name }});
return Nan::ThrowError(Nan::New(conversionResult.error).ToLocalChecked());
}

auto convertedObject = conversionResult.result;
cleanupHandles["{{ arg.name }}"] = convertedObject;
cleanupHandles[std::string("{{ arg.name }}") + std::to_string(i)] = convertedObject;
baton->{{ arg.name }}[i] = *convertedObject->GetValue();
}
}
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