diff --git a/b_asic/signal_flow_graph.py b/b_asic/signal_flow_graph.py
index 324ffb7d12ada379ad7352fb3f9113a0a703b882..d0ac9fe35cd47079f59f341fc4f9fad3de3bd310 100644
--- a/b_asic/signal_flow_graph.py
+++ b/b_asic/signal_flow_graph.py
@@ -5,7 +5,7 @@ TODO: More info.
from typing import NewType, List, Iterable, Sequence, Dict, Optional, DefaultDict, Set
from numbers import Number
-from collections import defaultdict, deque
+from collections import defaultdict, deque, Iterable as CIterable
from b_asic.port import SignalSourceProvider, OutputPort
from b_asic.operation import Operation, AbstractOperation
@@ -350,18 +350,53 @@ class SFG(AbstractOperation):
input_values.append(self._evaluate_source(input_src))
return src.operation.evaluate_output(src.index, input_values)
- def replace_component(self, component_type, _id=None, _type=None):
+ def replace_component(self, _component: List[Operation], _id: List[GraphID] = None, _type: List[Operation] = None):
"""Find and replace all components matching either on GraphID, Type or both.
Then return a new deepcopy of the sfg with the replaced component.
Arguments:
- component_type: The type of the new component, e.g Multiplication
+ _component: The list of new component(s), e.g Multiplication
Keyword arguments:
- _id: The GraphID to match the component to replace.
- _type: The Type to match the component to replace.
+ _id: The list of GraphID(s) to match the component to replace.
+ _type: The list of Type(s) to match the component to replace.
"""
- pass
+
+ _id = [_id] if not isinstance(_id, CIterable) or isinstance(_id, str) else _id
+ _type = [_type] if not isinstance(_type, CIterable) else _type
+ _component = [_component] if not isinstance(_component, CIterable) else _component
+ components = set()
+
+ for comp_id in _id:
+ if comp_id is None:
+ continue
+
+ components |= {value for key, value in self._components_by_id.items() if key == comp_id}
+
+ for comp_type in _type:
+ if comp_type is None:
+ continue
+
+ components |= {comp for comp in self.components if isinstance(comp, comp_type)}
+
+ assert sum([comp.output_count for comp in _component]) == sum([comp.output_count for comp in components])
+ assert sum([comp.input_count for comp in _component]) == sum([comp.input_count for comp in components])
+
+ for index, comp in enumerate(components):
+ component = _component if not isinstance(_component, CIterable) else _component[index]
+
+ for index_in, _inp in enumerate(comp.inputs):
+ for _signal in _inp.signals:
+ _signal.remove_destination()
+ _signal.set_destination(component.input(index_in))
+
+ for index_out, _out in enumerate(comp.outputs):
+ for _signal in _out.signals:
+ _signal.remove_source()
+ _signal.set_source(component.output(index_out))
+
+ # The old SFG will be deleted by Python GC
+ return self.deep_copy()
def __str__(self):
"""Prints operations, inputs and outputs in a SFG
diff --git a/test/test_sfg.py b/test/test_sfg.py
index a133c0877d76fb4f2969476b2bd7c341b5bcfd7b..bf656e04d7d17e83cc0c94f8e1779928cc8f8330 100644
--- a/test/test_sfg.py
+++ b/test/test_sfg.py
@@ -120,7 +120,7 @@ class TestReplaceComponents:
def test_replace_addition(self, operation_tree):
sfg = SFG(outputs=[Output(operation_tree)])
- component_id = "add3"
+ component_id = "add1"
sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
assert component_id not in sfg._components_by_id.keys()
@@ -131,29 +131,29 @@ class TestReplaceComponents:
component_id = "add2"
sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
- assert component_id not in sfg._components_by_id.keys()
assert "Multi" in sfg._components_by_name.keys()
def test_replace_no_input_component(self, operation_tree):
sfg = SFG(outputs=[Output(operation_tree)])
component_id = "c1"
-
+ _value = sfg.find_by_id(component_id).value
+
sfg = sfg.replace_component(Constant(10), _id=component_id)
- assert component_id not in sfg._components_by_id.keys()
+ assert _value != sfg.find_by_id(component_id).value
def test_replace_no_destination_component(self, operation_tree):
sfg = SFG(outputs=[Output(operation_tree)])
component_id = "add1"
- sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
- assert component_id not in sfg._components_by_id.keys()
+ sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
assert "Multi" in sfg._components_by_name.keys()
def test_replace_several_components(self, large_operation_tree):
sfg = SFG(outputs=[Output(large_operation_tree)])
component_id = ("add1", "add2", "add3")
+ replace_comp = (Multiplication(name="Multi"), Multiplication(name="Multi"), Multiplication(name="Multi"))
- sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
+ sfg = sfg.replace_component(replace_comp, _id=component_id)
assert all([_id not in sfg._components_by_id.keys() for _id in component_id])
assert "Multi" in sfg._components_by_name.keys()
assert len(sfg._components_by_name["Multi"]) == 3
@@ -161,8 +161,9 @@ class TestReplaceComponents:
def test_replace_all_of_type_components(self, large_operation_tree):
sfg = SFG(outputs=[Output(large_operation_tree)])
component_type = Addition
+ replace_comp = (Multiplication(name="Multi"), Multiplication(name="Multi"), Multiplication(name="Multi"))
- sfg.replace_component(Multiplication(name="Multi"), _type=component_type)
+ sfg = sfg.replace_component(replace_comp, _type=component_type)
assert all([not isinstance(_type, Addition) for _type in sfg.components])
assert "Multi" in sfg._components_by_name.keys()
assert len(sfg._components_by_name["Multi"]) == 3
@@ -171,18 +172,20 @@ class TestReplaceComponents:
sfg = SFG(outputs=[Output(large_operation_tree)])
component_id = "addd1"
- _sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
- assert all([comp in sfg.components for comp in _sfg])
- assert "Multi" not in sfg._components_by_name.keys()
+ try:
+ sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
+ except AssertionError:
+ assert True
+ else:
+ assert False
def test_not_equal_input(self, large_operation_tree):
sfg = SFG(outputs=[Output(large_operation_tree)])
component_id = "c1"
- # Couldn't import pytest.raises
try:
sfg = sfg.replace_component(Multiplication(name="Multi"), component_id)
except AssertionError:
assert True
-
- assert False
+ else:
+ assert False