| from __future__ import annotations | |
| from functools import wraps | |
| from typing import TypeVar | |
| T = TypeVar("T") | |
| TRITON_BUILTIN = "__triton_builtin__" | |
| def builtin(fn: T) -> T: | |
| """Mark a function as a builtin.""" | |
| assert callable(fn) | |
| def wrapper(*args, **kwargs): | |
| if "_builder" not in kwargs or kwargs["_builder"] is None: | |
| raise ValueError( | |
| "Did you forget to add @triton.jit ? " | |
| "(`_builder` argument must be provided outside of JIT functions.)" | |
| ) | |
| return fn(*args, **kwargs) | |
| setattr(wrapper, TRITON_BUILTIN, True) | |
| return wrapper | |
| def is_builtin(fn) -> bool: | |
| """Is this a registered triton builtin function?""" | |
| return getattr(fn, TRITON_BUILTIN, False) | |
| def extern(fn: T) -> T: | |
| """A decorator for external functions.""" | |
| return builtin(fn) | |