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Pyreverse: Don't show multiple class association arrows #9055

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merged 2 commits into from
Sep 25, 2023
Merged

Pyreverse: Don't show multiple class association arrows #9055

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3496fe2
Don't show multiple class association arrows
nickdrozd Sep 21, 2023
4869dd8
Update bugfix description
nickdrozd Sep 22, 2023
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3 changes: 3 additions & 0 deletions doc/whatsnew/fragments/9045.bugfix
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Don't show multiple class association arrows.
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Refs #9045
5 changes: 5 additions & 0 deletions pylint/pyreverse/writer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
import argparse
import itertools
import os
from collections import defaultdict
from collections.abc import Iterable

from astroid import modutils, nodes
Expand Down Expand Up @@ -133,8 +134,10 @@ def write_classes(self, diagram: ClassDiagram) -> None:
rel.to_object.fig_id,
type_=EdgeType.INHERITS,
)
associations: dict[str, set[str]] = defaultdict(set)
# generate associations
for rel in diagram.get_relationships("association"):
associations[rel.from_object.fig_id].add(rel.to_object.fig_id)
self.printer.emit_edge(
rel.from_object.fig_id,
rel.to_object.fig_id,
Expand All @@ -143,6 +146,8 @@ def write_classes(self, diagram: ClassDiagram) -> None:
)
# generate aggregations
for rel in diagram.get_relationships("aggregation"):
if rel.to_object.fig_id in associations[rel.from_object.fig_id]:
continue
self.printer.emit_edge(
rel.from_object.fig_id,
rel.to_object.fig_id,
Expand Down
1 change: 0 additions & 1 deletion tests/pyreverse/functional/class_diagrams/aggregation/fields.mmd
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Expand Up @@ -21,4 +21,3 @@ classDiagram
P --* D : x
P --* E : x
P --o B : x
P --o C : x