CBD model is computing Fibonacci numbers! :)
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9c68b288c1
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27 changed files with 429 additions and 269 deletions
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@ -11,25 +11,34 @@ from services import od
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from services.primitives.string_type import String
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from services.primitives.actioncode_type import ActionCode
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from services.primitives.integer_type import Integer
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from util.eval import exec_then_eval
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from util.eval import exec_then_eval, simply_exec
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def process_rule(state, lhs: UUID, rhs: UUID):
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def preprocess_rule(state, lhs: UUID, rhs: UUID, name_mapping):
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bottom = Bottom(state)
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to_delete = { name for name in bottom.read_keys(lhs) if name not in bottom.read_keys(rhs) }
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to_create = { name for name in bottom.read_keys(rhs) if name not in bottom.read_keys(lhs) }
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common = { name for name in bottom.read_keys(lhs) if name in bottom.read_keys(rhs) }
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to_delete = { name for name in bottom.read_keys(lhs) if name not in bottom.read_keys(rhs) and name in name_mapping }
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to_create = { name for name in bottom.read_keys(rhs) if name not in bottom.read_keys(lhs)
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# extremely dirty:
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and "GlobalCondition" not in name }
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common = { name for name in bottom.read_keys(lhs) if name in bottom.read_keys(rhs) and name in name_mapping }
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# print("to_delete:", to_delete)
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# print("to_create:", to_create)
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print("to_delete:", to_delete)
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print("to_create:", to_create)
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return to_delete, to_create, common
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# Rewrite is performed in-place (modifying `host_m`)
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# Also updates the `mapping` in-place, to become RHS -> host
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def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dict, host_m: UUID, mm: UUID):
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def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dict, host_m: UUID, host_mm: UUID):
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bottom = Bottom(state)
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orig_name_mapping = dict(name_mapping)
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# function that can be called from within RHS action code
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def matched_callback(pattern_name: str):
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host_name = orig_name_mapping[pattern_name]
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return bottom.read_outgoing_elements(host_m, host_name)[0]
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scd_metamodel_id = state.read_dict(state.read_root(), "SCD")
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scd_metamodel = UUID(state.read_value(scd_metamodel_id))
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@ -38,12 +47,12 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
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assoc_type = od.get_scd_mm_assoc_node(bottom)
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modelref_type = od.get_scd_mm_modelref_node(bottom)
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m_od = od.OD(mm, host_m, bottom.state)
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m_od = od.OD(host_mm, host_m, bottom.state)
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rhs_od = od.OD(pattern_mm, rhs_m, bottom.state)
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to_delete, to_create, common = process_rule(state, lhs_m, rhs_m)
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to_delete, to_create, common = preprocess_rule(state, lhs_m, rhs_m, orig_name_mapping)
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odapi = ODAPI(state, host_m, mm)
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odapi = ODAPI(state, host_m, host_mm)
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# Perform deletions
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for pattern_name_to_delete in to_delete:
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@ -89,7 +98,7 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
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# print(' -> postpone (is link)')
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edges_to_create.append((pattern_name_to_create, rhs_el_to_create, original_type, 'link', model_el_name_to_create))
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else:
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original_type_name = od.get_object_name(bottom, mm, original_type)
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original_type_name = od.get_object_name(bottom, host_mm, original_type)
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print(" -> warning: don't know about", original_type_name)
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else:
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# print(" -> no original (un-RAMified) type")
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@ -100,7 +109,11 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
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# Assume the string is a Python expression to evaluate
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python_expr = ActionCode(UUID(bottom.read_value(rhs_el_to_create)), bottom.state).read()
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result = exec_then_eval(python_expr, _globals=bind_api(odapi))
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result = exec_then_eval(python_expr, _globals={
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**bind_api(odapi),
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'matched': matched_callback,
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})
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# Write the result into the host model.
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# This will be the *value* of an attribute. The attribute-link (connecting an object to the attribute) will be created as an edge later.
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if isinstance(result, int):
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@ -109,7 +122,8 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
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m_od.create_string_value(model_el_name_to_create, result)
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name_mapping[pattern_name_to_create] = model_el_name_to_create
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else:
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raise Exception(f"RHS element '{pattern_name_to_create}' needs to be created in host, but has no un-RAMified type, and I don't know what to do with it. It's type is '{type_name}'")
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msg = f"RHS element '{pattern_name_to_create}' needs to be created in host, but has no un-RAMified type, and I don't know what to do with it. It's type is '{type_name}'"
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raise Exception(msg)
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# print("create edges....")
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for pattern_name_to_create, rhs_el_to_create, original_type, original_type_name, model_el_name_to_create in edges_to_create:
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@ -130,7 +144,7 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
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tgt = bottom.read_edge_target(rhs_el_to_create)
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tgt_name = od.get_object_name(bottom, rhs_m, tgt)
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obj_name = name_mapping[src_name] # name of object in host graph to create slot for
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attr_name = od.get_object_name(bottom, mm, original_type)
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attr_name = od.get_object_name(bottom, host_mm, original_type)
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m_od.create_link(model_el_name_to_create, attr_name, obj_name, name_mapping[tgt_name])
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@ -146,7 +160,7 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
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# nothing to do
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pass
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elif od.is_typed_by(bottom, host_type, assoc_type):
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print(' -> is association')
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# print(' -> is association')
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# nothing to do
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pass
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elif od.is_typed_by(bottom, host_type, attr_link_type):
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@ -154,12 +168,15 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
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# nothing to do
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pass
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elif od.is_typed_by(bottom, host_type, modelref_type):
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print(' -> is modelref')
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old_value, _ = od.read_primitive_value(bottom, host_el, mm)
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# print(' -> is modelref')
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old_value, _ = od.read_primitive_value(bottom, host_el, host_mm)
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rhs_el, = bottom.read_outgoing_elements(rhs_m, pattern_el_name)
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python_expr, _ = od.read_primitive_value(bottom, rhs_el, pattern_mm)
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result = exec_then_eval(python_expr,
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_globals=bind_api(odapi),
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_globals={
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**bind_api(odapi),
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'matched': matched_callback,
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},
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_locals={'this': host_el})
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# print('eval result=', result)
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if isinstance(result, int):
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@ -172,3 +189,11 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
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msg = f"Don't know what to do with element '{pattern_el_name}'->'{host_el_name}' of type ({host_type})"
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# print(msg)
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raise Exception(msg)
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rhs_odapi = ODAPI(state, rhs_m, pattern_mm)
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for cond_name, cond in rhs_odapi.get_all_instances("GlobalCondition"):
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python_code = rhs_odapi.get_slot_value(cond, "condition")
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simply_exec(python_code, _globals={
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**bind_api(odapi),
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'matched': matched_callback,
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})
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