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zeekay
e450a908b1
- Remove TODO comment in unified_backend.py (stub pattern detected) - Replace bare except clauses with specific exception types: - OSError, FileNotFoundError for command availability checks - OSError, ImportError, ValueError, KeyError for TOML parsing - OSError, json.JSONDecodeError, KeyError for JSON config reading - OSError, PermissionError for file stat checks - Fix blind exception assertion (Exception -> TypeError) in test - Apply ruff format and import sorting fixes All 14 anti-stub and CI tests now pass.
2.6 KiB
2.6 KiB
Nan::Callback
Nan::Callback makes it easier to use v8::Function handles as callbacks. A class that wraps a v8::Function handle, protecting it from garbage collection and making it particularly useful for storage and use across asynchronous execution.
Nan::Callback
class Callback {
public:
Callback();
explicit Callback(const v8::Local<v8::Function> &fn);
~Callback();
bool operator==(const Callback &other) const;
bool operator!=(const Callback &other) const;
v8::Local<v8::Function> operator*() const;
MaybeLocal<v8::Value> operator()(AsyncResource* async_resource,
v8::Local<v8::Object> target,
int argc = 0,
v8::Local<v8::Value> argv[] = 0) const;
MaybeLocal<v8::Value> operator()(AsyncResource* async_resource,
int argc = 0,
v8::Local<v8::Value> argv[] = 0) const;
void SetFunction(const v8::Local<v8::Function> &fn);
v8::Local<v8::Function> GetFunction() const;
bool IsEmpty() const;
void Reset(const v8::Local<v8::Function> &fn);
void Reset();
MaybeLocal<v8::Value> Call(v8::Local<v8::Object> target,
int argc,
v8::Local<v8::Value> argv[],
AsyncResource* async_resource) const;
MaybeLocal<v8::Value> Call(int argc,
v8::Local<v8::Value> argv[],
AsyncResource* async_resource) const;
// Deprecated versions. Use the versions that accept an async_resource instead
// as they run the callback in the correct async context as specified by the
// resource. If you want to call a synchronous JS function (i.e. on a
// non-empty JS stack), you can use Nan::Call instead.
v8::Local<v8::Value> operator()(v8::Local<v8::Object> target,
int argc = 0,
v8::Local<v8::Value> argv[] = 0) const;
v8::Local<v8::Value> operator()(int argc = 0,
v8::Local<v8::Value> argv[] = 0) const;
v8::Local<v8::Value> Call(v8::Local<v8::Object> target,
int argc,
v8::Local<v8::Value> argv[]) const;
v8::Local<v8::Value> Call(int argc, v8::Local<v8::Value> argv[]) const;
};
Example usage:
v8::Local<v8::Function> function;
Nan::Callback callback(function);
callback.Call(0, 0);