wip

Author: aborgna-q

hugr-py/src/hugr/passes/_composable_pass.py

@@ -7,7 +7,7 @@
 
 from copy import deepcopy
 from dataclasses import dataclass
-from typing import TYPE_CHECKING, Protocol, runtime_checkable
+from typing import TYPE_CHECKING, Any, Protocol, TypeVar, runtime_checkable
 
 if TYPE_CHECKING:
     from collections.abc import Callable
@@ -110,3 +110,24 @@ def apply_inplace(hugr: Hugr) -> None:
     @property
     def name(self) -> str:
         return f"Composed({ ', '.join(pass_.name for pass_ in self.passes) })"
+
+
+@dataclass
+class PassResult:
+    """The result of a series of composed passes applied to a HUGR.
+
+    Includes a flag indicating whether the passes modified the HUGR, and an
+    arbitrary result object for each pass.
+
+    In some cases, `modified` may be set to `True` even if the pass did not
+    modify the program.
+
+    :param modified: Whether the passes modified the HUGR.
+    :param results: The result of each applied pass, as a tuple of the pass and
+        the result.
+    """
+
+    hugr: Hugr
+    modified: bool
+    inline: bool
+    results: list[tuple[ComposablePass, Any]]