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Make OD-API for consistent for constraints, LHS patterns, RHS actions.

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This commit is contained in:
Joeri Exelmans 2024-11-07 11:05:06 +01:00
parent 1eb8a84553
commit 9c68b288c1
8 changed files with 108 additions and 79 deletions
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13
transformation/rewriter.py
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@ -4,12 +4,14 @@
# - ? that's it?
from uuid import UUID
from api.od import ODAPI, bind_api
from services.bottom.V0 import Bottom
from transformation import ramify
from services import od
from services.primitives.string_type import String
from services.primitives.actioncode_type import ActionCode
from services.primitives.integer_type import Integer
from util.eval import exec_then_eval
def process_rule(state, lhs: UUID, rhs: UUID):
bottom = Bottom(state)
@ -41,6 +43,8 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
to_delete, to_create, common = process_rule(state, lhs_m, rhs_m)
odapi = ODAPI(state, host_m, mm)
# Perform deletions
for pattern_name_to_delete in to_delete:
# For every name in `to_delete`, look up the name of the matched element in the host graph
@ -95,7 +99,8 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
if type_name == "ActionCode":
# Assume the string is a Python expression to evaluate
python_expr = ActionCode(UUID(bottom.read_value(rhs_el_to_create)), bottom.state).read()
result = eval(python_expr, {}, {})
result = exec_then_eval(python_expr, _globals=bind_api(odapi))
# Write the result into the host model.
# This will be the *value* of an attribute. The attribute-link (connecting an object to the attribute) will be created as an edge later.
if isinstance(result, int):
@ -152,8 +157,10 @@ def rewrite(state, lhs_m: UUID, rhs_m: UUID, pattern_mm: UUID, name_mapping: dic
print(' -> is modelref')
old_value, _ = od.read_primitive_value(bottom, host_el, mm)
rhs_el, = bottom.read_outgoing_elements(rhs_m, pattern_el_name)
expr, _ = od.read_primitive_value(bottom, rhs_el, pattern_mm)
result = eval(expr, {}, {'v': old_value})
python_expr, _ = od.read_primitive_value(bottom, rhs_el, pattern_mm)
result = exec_then_eval(python_expr,
_globals=bind_api(odapi),
_locals={'this': host_el})
# print('eval result=', result)
if isinstance(result, int):
# overwrite the old value, in-place