first pass at wrapper deco behavioral

Author: KRRT7

codeflash/code_utils/codeflash_wrap_decorator.py

@@ -0,0 +1,162 @@
+from __future__ import annotations
+
+import gc
+import inspect
+import os
+import pickle
+import time
+from functools import wraps
+from pathlib import Path
+from typing import Any, Callable, TypeVar
+
+from codeflash.code_utils.code_utils import get_run_tmp_file
+
+F = TypeVar("F", bound=Callable[..., Any])
+
+
+def extract_test_context_from_frame() -> tuple[str, str | None, str]:
+    frame = inspect.currentframe()
+    try:
+        while frame:
+            frame = frame.f_back
+            if frame and frame.f_code.co_name.startswith("test_"):
+                test_name = frame.f_code.co_name
+                test_module_name = frame.f_globals.get("__name__", "unknown_module")
+                test_class_name = None
+                if "self" in frame.f_locals:
+                    test_class_name = frame.f_locals["self"].__class__.__name__
+
+                return test_module_name, test_class_name, test_name
+        raise RuntimeError("No test function found in call stack")
+    finally:
+        del frame
+
+
+def codeflash_behavior_async(func: F) -> F:
+    """Async decorator for behavior analysis - collects timing data and function inputs/outputs."""
+    function_name = func.__name__
+    line_id = f"{func.__name__}_{func.__code__.co_firstlineno}"
+    loop_index = int(os.environ.get("CODEFLASH_LOOP_INDEX", "1"))
+
+    @wraps(func)
+    async def async_wrapper(*args: Any, **kwargs: Any) -> Any:  # noqa: ANN401
+        test_module_name, test_class_name, test_name = extract_test_context_from_frame()
+
+        test_id = f"{test_module_name}:{test_class_name}:{test_name}:{line_id}:{loop_index}"
+
+        if not hasattr(async_wrapper, "index"):
+            async_wrapper.index = {}
+        if test_id in async_wrapper.index:
+            async_wrapper.index[test_id] += 1
+        else:
+            async_wrapper.index[test_id] = 0
+
+        codeflash_test_index = async_wrapper.index[test_id]
+        invocation_id = f"{line_id}_{codeflash_test_index}"
+        test_stdout_tag = f"{test_module_name}:{(test_class_name + '.' if test_class_name else '')}{test_name}:{function_name}:{loop_index}:{invocation_id}"
+
+        print(f"!$######{test_stdout_tag}######$!")
+
+        exception = None
+        gc.disable()
+        try:
+            counter = time.perf_counter_ns()
+            ret = func(*args, **kwargs)
+
+            if inspect.isawaitable(ret):
+                counter = time.perf_counter_ns()
+                return_value = await ret
+            else:
+                return_value = ret
+
+            codeflash_duration = time.perf_counter_ns() - counter
+        except Exception as e:
+            codeflash_duration = time.perf_counter_ns() - counter
+            exception = e
+        finally:
+            gc.enable()
+
+        print(f"!######{test_stdout_tag}######!")
+
+        iteration = os.environ.get("CODEFLASH_TEST_ITERATION", "0")
+
+        codeflash_run_tmp_dir = get_run_tmp_file(Path()).as_posix()
+
+        output_file = Path(codeflash_run_tmp_dir) / f"test_return_values_{iteration}.bin"
+
+        with output_file.open("ab") as f:
+            pickled_values = (
+                pickle.dumps((args, kwargs, exception)) if exception else pickle.dumps((args, kwargs, return_value))
+            )
+            _test_name = f"{test_module_name}:{(test_class_name + '.' if test_class_name else '')}{test_name}:{function_name}:{line_id}".encode(
+                "ascii"
+            )
+
+            f.write(len(_test_name).to_bytes(4, byteorder="big"))
+            f.write(_test_name)
+            f.write(codeflash_duration.to_bytes(8, byteorder="big"))
+            f.write(len(pickled_values).to_bytes(4, byteorder="big"))
+            f.write(pickled_values)
+            f.write(loop_index.to_bytes(8, byteorder="big"))
+            f.write(len(invocation_id).to_bytes(4, byteorder="big"))
+            f.write(invocation_id.encode("ascii"))
+
+        if exception:
+            raise exception
+        return return_value
+
+    return async_wrapper
+
+
+def codeflash_performance_async(func: F) -> F:
+    """Async decorator for performance analysis - lightweight timing measurements only."""
+    function_name = func.__name__
+    line_id = f"{func.__name__}_{func.__code__.co_firstlineno}"
+    loop_index = int(os.environ.get("CODEFLASH_LOOP_INDEX", "1"))
+
+    @wraps(func)
+    async def async_wrapper(*args: Any, **kwargs: Any) -> Any:  # noqa: ANN401
+        test_module_name, test_class_name, test_name = extract_test_context_from_frame()
+
+        test_id = f"{test_module_name}:{test_class_name}:{test_name}:{line_id}:{loop_index}"
+
+        if not hasattr(async_wrapper, "index"):
+            async_wrapper.index = {}
+        if test_id in async_wrapper.index:
+            async_wrapper.index[test_id] += 1
+        else:
+            async_wrapper.index[test_id] = 0
+
+        codeflash_test_index = async_wrapper.index[test_id]
+        invocation_id = f"{line_id}_{codeflash_test_index}"
+        test_stdout_tag = f"{test_module_name}:{(test_class_name + '.' if test_class_name else '')}{test_name}:{function_name}:{loop_index}:{invocation_id}"
+
+        print(f"!$######{test_stdout_tag}######$!")
+
+        exception = None
+        gc.disable()
+        try:
+            counter = time.perf_counter_ns()
+            ret = func(*args, **kwargs)
+
+            if inspect.isawaitable(ret):
+                counter = time.perf_counter_ns()
+                return_value = await ret
+            else:
+                return_value = ret
+
+            codeflash_duration = time.perf_counter_ns() - counter
+        except Exception as e:
+            codeflash_duration = time.perf_counter_ns() - counter
+            exception = e
+        finally:
+            gc.enable()
+
+        # For performance mode, include timing in the output tag like sync functions do
+        print(f"!######{test_stdout_tag}:{codeflash_duration}######!")
+
+        if exception:
+            raise exception
+        return return_value
+
+    return async_wrapper