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https://github.com/pocketpy/pocketpy
synced 2025-10-21 03:50:16 +00:00
add docs for pocketpy.h
This commit is contained in:
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26f53bf85d
commit
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@ -51,6 +51,7 @@ extern py_GlobalRef py_None;
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extern py_GlobalRef py_NIL;
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/************* Global Setup *************/
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/// Initialize pocketpy and the default VM.
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void py_initialize();
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/// Finalize pocketpy.
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@ -73,67 +74,102 @@ bool py_exec(const char* source,
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py_Ref module) PY_RAISE;
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/************* Values Creation *************/
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void py_newint(py_Ref, py_i64);
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void py_newfloat(py_Ref, py_f64);
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void py_newbool(py_Ref, bool);
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void py_newstr(py_Ref, const char*);
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void py_newstrn(py_Ref, const char*, int);
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unsigned char* py_newbytes(py_Ref, int);
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void py_newnone(py_Ref);
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void py_newnotimplemented(py_Ref out);
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void py_newellipsis(py_Ref out);
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void py_newnil(py_Ref);
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/// Create a tuple with n UNINITIALIZED elements.
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/// Create an `int` object.
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void py_newint(py_Ref, py_i64);
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/// Create a `float` object.
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void py_newfloat(py_Ref, py_f64);
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/// Create a `bool` object.
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void py_newbool(py_Ref, bool);
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/// Create a `str` object from a null-terminated string (utf-8).
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void py_newstr(py_Ref, const char*);
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/// Create a `str` object from a char array (utf-8).
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void py_newstrn(py_Ref, const char*, int);
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/// Create a `bytes` object with `n` UNINITIALIZED bytes.
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unsigned char* py_newbytes(py_Ref, int n);
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/// Create a `None` object.
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void py_newnone(py_Ref);
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/// Create a `NotImplemented` object.
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void py_newnotimplemented(py_Ref out);
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/// Create a `...` object.
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void py_newellipsis(py_Ref out);
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/// Create a `nil` object. `nil` is an invalid representation of an object.
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/// Don't use it unless you know what you are doing.
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void py_newnil(py_Ref);
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/// Create a `tuple` with `n` UNINITIALIZED elements.
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/// You should initialize all elements before using it.
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void py_newtuple(py_Ref, int n);
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/// Create a list.
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/// Create an empty `list`.
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void py_newlist(py_Ref);
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/// Create a list with n UNINITIALIZED elements.
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/// Create a `list` with `n` UNINITIALIZED elements.
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/// You should initialize all elements before using it.
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void py_newlistn(py_Ref, int n);
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/// Create an empty `dict`.
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void py_newdict(py_Ref);
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/// Create an UNINITIALIZED `slice` object.
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/// You should use `py_setslot()` to set `start`, `stop`, and `step`.
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void py_newslice(py_Ref);
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/// Create a `nativefunc` object.
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void py_newnativefunc(py_Ref out, py_CFunction);
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/// Create a `function` object.
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py_Name
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py_newfunction(py_Ref out, const char* sig, py_CFunction f, const char* docstring, int slots);
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/// Create a `boundmethod` object.
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void py_newboundmethod(py_Ref out, py_Ref self, py_Ref func);
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/************* Name Convertions *************/
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/// Convert a null-terminated string to a name.
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py_Name py_name(const char*);
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/// Convert a name to a null-terminated string.
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const char* py_name2str(py_Name);
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/// Convert a name to a `c11_sv`.
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py_Name py_namev(c11_sv name);
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/// Convert a `c11_sv` to a name.
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c11_sv py_name2sv(py_Name);
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#define py_ismagicname(name) (name <= __missing__)
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/************* Meta Operations *************/
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/// Create a new type.
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/// @param name name of the type.
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/// @param base base type.
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/// @param module module where the type is defined. Use NULL for built-in types.
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/// @param dtor destructor function. Use NULL if not needed.
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/// @param module module where the type is defined. Use `NULL` for built-in types.
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/// @param dtor destructor function. Use `NULL` if not needed.
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py_Type py_newtype(const char* name, py_Type base, const py_GlobalRef module, void (*dtor)(void*));
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/// Create a new object.
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/// @param out output reference.
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/// @param type type of the object.
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/// @param slots number of slots. Use -1 to create a `__dict__`.
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/// @param udsize size of your userdata. You can use `py_touserdata()` to get the pointer to it.
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/// @param udsize size of your userdata.
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/// @return pointer to the userdata.
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void* py_newobject(py_Ref out, py_Type type, int slots, int udsize);
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/************* Type Cast *************/
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py_i64 py_toint(py_Ref);
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py_f64 py_tofloat(py_Ref);
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bool py_castfloat(py_Ref, py_f64* out) PY_RAISE;
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bool py_tobool(py_Ref);
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py_Type py_totype(py_Ref);
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const char* py_tostr(py_Ref);
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const char* py_tostrn(py_Ref, int* size);
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c11_sv py_tosv(py_Ref);
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unsigned char* py_tobytes(py_Ref, int* size);
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/// Convert an `int` object in python to `int64_t`.
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py_i64 py_toint(py_Ref);
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/// Convert a `float` object in python to `double`.
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py_f64 py_tofloat(py_Ref);
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/// Cast a `int` or `float` object in python to `double`.
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/// If successful, returns true and set the value to `out`.
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/// Otherwise, return false and raises a `TypeError`.
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bool py_castfloat(py_Ref, py_f64* out) PY_RAISE;
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/// Convert a `bool` object in python to `bool`.
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bool py_tobool(py_Ref);
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/// Convert a `type` object in python to `py_Type`.
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py_Type py_totype(py_Ref);
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/// Convert a `str` object in python to null-terminated string.
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const char* py_tostr(py_Ref);
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/// Convert a `str` object in python to char array.
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const char* py_tostrn(py_Ref, int* size);
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/// Convert a `str` object in python to `c11_sv`.
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c11_sv py_tosv(py_Ref);
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/// Convert a `bytes` object in python to char array.
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unsigned char* py_tobytes(py_Ref, int* size);
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/// Convert a user-defined object to its userdata.
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void* py_touserdata(py_Ref);
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#define py_isint(self) py_istype(self, tp_int)
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@ -147,14 +183,20 @@ void* py_touserdata(py_Ref);
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#define py_isnil(self) py_istype(self, 0)
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#define py_isnone(self) py_istype(self, tp_NoneType)
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/// Get the type of the object.
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py_Type py_typeof(py_Ref self);
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/// Check if the object is exactly the given type.
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bool py_istype(py_Ref, py_Type);
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/// Check if the object is an instance of the given type.
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bool py_isinstance(py_Ref obj, py_Type type);
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/// Check if the derived type is a subclass of the base type.
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bool py_issubclass(py_Type derived, py_Type base);
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/// Search the magic method from the given type to the base type.
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/// Return `NULL` if not found.
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py_GlobalRef py_tpfindmagic(py_Type, py_Name name);
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/// Search the name from the given type to the base type.
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/// Return `NULL` if not found.
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py_GlobalRef py_tpfindname(py_Type, py_Name name);
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/// Get the type object of the given type.
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py_GlobalRef py_tpobject(py_Type type);
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@ -162,10 +204,12 @@ py_GlobalRef py_tpobject(py_Type type);
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const char* py_tpname(py_Type type);
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/// Call a type to create a new instance.
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bool py_tpcall(py_Type type, int argc, py_Ref argv) PY_RAISE;
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/// Find the magic method from the given type only.
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/// Get the magic method from the given type only.
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/// The returned reference is always valid. However, its value may be `nil`.
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py_GlobalRef py_tpmagic(py_Type type, py_Name name);
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/// Check if the object is an instance of the given type.
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/// Raise `TypeError` if the check fails.
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bool py_checktype(py_Ref self, py_Type type) PY_RAISE;
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#define py_checkint(self) py_checktype(self, tp_int)
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@ -174,34 +218,37 @@ bool py_checktype(py_Ref self, py_Type type) PY_RAISE;
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#define py_checkstr(self) py_checktype(self, tp_str)
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/************* References *************/
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/// Get the reference to the i-th register.
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/// Get the i-th register.
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/// All registers are located in a contiguous memory.
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py_GlobalRef py_getreg(int i);
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/// Set the reference to the i-th register.
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/// Set the i-th register.
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void py_setreg(int i, py_Ref val);
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/// Equivalent to `*dst = *src`.
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void py_assign(py_Ref dst, py_Ref src);
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/// The return value of the most recent call.
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/// Get the last return value.
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py_GlobalRef py_retval();
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/// Get the reference of the object's `__dict__`.
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/// The object must have a `__dict__`.
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/// Returns a reference to the value or NULL if not found.
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/// Get an item from the object's `__dict__`.
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/// Return `NULL` if not found.
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py_ObjectRef py_getdict(py_Ref self, py_Name name);
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/// Set an item to the object's `__dict__`.
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void py_setdict(py_Ref self, py_Name name, py_Ref val);
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/// Delete an item from the object's `__dict__`.
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/// Return `true` if the deletion is successful.
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bool py_deldict(py_Ref self, py_Name name);
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/// Prepare an insertion to the object's `__dict__`.
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py_ObjectRef py_emplacedict(py_Ref self, py_Name name);
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/// Get the reference of the i-th slot of the object.
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/// The object must have slots and `i` must be in range.
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/// Get the i-th slot of the object.
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/// The object must have slots and `i` must be in valid range.
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py_ObjectRef py_getslot(py_Ref self, int i);
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/// Set the i-th slot of the object.
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void py_setslot(py_Ref self, int i, py_Ref val);
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/************* Bindings *************/
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// new style decl-based bindings
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void py_bind(py_Ref obj, const char* sig, py_CFunction f);
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// old style argc-based bindings
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void py_bindmethod(py_Type type, const char* name, py_CFunction f);
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void py_bindfunc(py_Ref obj, const char* name, py_CFunction f);
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void py_bindproperty(py_Type type, const char* name, py_CFunction getter, py_CFunction setter);
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@ -217,12 +264,17 @@ void py_bindproperty(py_Type type, const char* name, py_CFunction getter, py_CFu
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#define py_offset(p, i) ((py_Ref)((char*)p + ((i) << 4)))
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#define py_arg(i) py_offset(argv, i)
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/************* Python Equivalents *************/
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/// Python equivalent to `getattr(self, name)`.
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bool py_getattr(py_Ref self, py_Name name) PY_RAISE;
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/// Python equivalent to `setattr(self, name, val)`.
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bool py_setattr(py_Ref self, py_Name name, py_Ref val) PY_RAISE;
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/// Python equivalent to `delattr(self, name)`.
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bool py_delattr(py_Ref self, py_Name name) PY_RAISE;
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/// Python equivalent to `self[key]`.
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bool py_getitem(py_Ref self, py_Ref key) PY_RAISE;
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/// Python equivalent to `self[key] = val`.
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bool py_setitem(py_Ref self, py_Ref key, py_Ref val) PY_RAISE;
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/// Python equivalent to `del self[key]`.
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bool py_delitem(py_Ref self, py_Ref key) PY_RAISE;
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/// Perform a binary operation on the stack.
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@ -246,32 +298,35 @@ bool py_binaryop(py_Ref lhs, py_Ref rhs, py_Name op, py_Name rop) PY_RAISE;
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#define py_binarymatmul(lhs, rhs) py_binaryop(lhs, rhs, __matmul__, 0)
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/************* Stack Operations *************/
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/// Return a reference to the i-th object from the top of the stack.
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/// i should be negative, e.g. (-1) means TOS.
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/// Get the i-th object from the top of the stack.
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/// `i` should be negative, e.g. (-1) means TOS.
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py_StackRef py_peek(int i);
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/// Push the object to the stack.
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void py_push(py_Ref src);
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/// Push a nil object to the stack.
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/// Push a `nil` object to the stack.
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void py_pushnil();
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/// Pop an object from the stack.
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void py_pop();
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/// Shrink the stack by n.
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void py_shrink(int n);
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/// Get a temporary variable from the stack and returns the reference to it.
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/// Get a temporary variable from the stack.
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py_StackRef py_pushtmp();
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/// Gets the unbound method of the object.
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/// Assumes the object is located at the top of the stack.
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/// If returns true: [self] -> [unbound, self]
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/// If returns false: [self] -> [self] (no change)
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/// Get the unbound method of the object.
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/// Assume the object is located at the top of the stack.
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/// If return true: `[self] -> [unbound, self]`.
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/// If return false: `[self] -> [self]` (no change).
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bool py_pushmethod(py_Name name);
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/// A stack operation that calls a function.
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/// It assumes `argc + kwargc` arguments are already pushed to the stack.
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/// Call a callable object.
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/// Assume `argc + kwargc` arguments are already pushed to the stack.
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/// The result will be set to `py_retval()`.
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/// The stack size will be reduced by `argc + kwargc`.
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bool py_vectorcall(uint16_t argc, uint16_t kwargc) PY_RAISE;
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/************* Modules *************/
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/// Create a new module.
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py_TmpRef py_newmodule(const char* path);
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/// Get a module by path.
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py_TmpRef py_getmodule(const char* path);
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/// Import a module.
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@ -280,9 +335,9 @@ py_TmpRef py_getmodule(const char* path);
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int py_import(const char* path) PY_RAISE;
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/************* Errors *************/
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/// Raise an exception by name and message. Always returns false.
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/// Raise an exception by type and message. Always return false.
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bool py_exception(py_Type type, const char* fmt, ...) PY_RAISE;
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/// Raise an expection object. Always returns false.
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/// Raise an expection object. Always return false.
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bool py_raise(py_Ref) PY_RAISE;
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/// Print the current exception.
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void py_printexc();
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@ -311,14 +366,19 @@ bool StopIteration();
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bool KeyError(py_Ref key) PY_RAISE;
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/************* Operators *************/
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int py_equal(py_Ref lhs, py_Ref rhs) PY_RAISE;
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int py_less(py_Ref lhs, py_Ref rhs) PY_RAISE;
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/// Equivalent to `bool(val)`.
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/// Returns 1 if `val` is truthy, otherwise 0.
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/// Returns -1 if an error occurred.
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int py_bool(py_Ref val) PY_RAISE;
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/// Compare two objects.
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/// 1: lhs == rhs, 0: lhs != rhs, -1: error
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int py_equal(py_Ref lhs, py_Ref rhs) PY_RAISE;
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/// Compare two objects.
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/// 1: lhs < rhs, 0: lhs >= rhs, -1: error
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int py_less(py_Ref lhs, py_Ref rhs) PY_RAISE;
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#define py_eq(lhs, rhs) py_binaryop(lhs, rhs, __eq__, __eq__)
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#define py_ne(lhs, rhs) py_binaryop(lhs, rhs, __ne__, __ne__)
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#define py_lt(lhs, rhs) py_binaryop(lhs, rhs, __lt__, __gt__)
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@ -326,6 +386,7 @@ int py_bool(py_Ref val) PY_RAISE;
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#define py_gt(lhs, rhs) py_binaryop(lhs, rhs, __gt__, __lt__)
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#define py_ge(lhs, rhs) py_binaryop(lhs, rhs, __ge__, __le__)
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/// Get the hash value of the object.
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bool py_hash(py_Ref, py_i64* out) PY_RAISE;
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/// Get the iterator of the object.
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bool py_iter(py_Ref) PY_RAISE;
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@ -340,11 +401,15 @@ bool py_isidentical(py_Ref, py_Ref);
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/// The stack remains unchanged after the operation.
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bool py_call(py_Ref f, int argc, py_Ref argv) PY_RAISE;
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/// Python equivalent to `str(val)`.
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bool py_str(py_Ref val) PY_RAISE;
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/// Python equivalent to `repr(val)`.
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bool py_repr(py_Ref val) PY_RAISE;
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/// Python equivalent to `len(val)`.
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bool py_len(py_Ref val) PY_RAISE;
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/************* Unchecked Functions *************/
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py_ObjectRef py_tuple__data(py_Ref self);
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py_ObjectRef py_tuple__getitem(py_Ref self, int i);
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void py_tuple__setitem(py_Ref self, int i, py_Ref val);
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@ -363,11 +428,13 @@ void py_list__reverse(py_Ref self);
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py_TmpRef py_dict__getitem(py_Ref self, py_Ref key) PY_RAISE;
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void py_dict__setitem(py_Ref self, py_Ref key, py_Ref val) PY_RAISE;
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void py_dict__delitem(py_Ref self, py_Ref key) PY_RAISE;
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bool py_dict__contains(py_Ref self, py_Ref key);
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bool py_dict__contains(py_Ref self, py_Ref key) PY_RAISE;
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int py_dict__len(py_Ref self);
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bool py_dict__apply(py_Ref self, bool (*f)(py_Ref key, py_Ref val, void* ctx), void* ctx);
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bool py_dict__apply(py_Ref self, bool (*f)(py_Ref key, py_Ref val, void* ctx), void* ctx) PY_RAISE;
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/************* Others *************/
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/// An utility function to read a line from stdin for REPL.
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int py_replinput(char* buf, int max_size);
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/// Python favored string formatting. (just put here, not for users)
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