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safishamsiandClaude Opus 4.8
93de0d4aea
`defdelegate name(args), to: Mod` declares an invocable function with the same `call` head shape as `def`, but was missing from the def-family recognizer, so no node was minted and same-module calls to the delegated name dangled. Add `defdelegate` to the def-family tuple and to the call-pass skip set. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
66 lines
2.2 KiB
Python
66 lines
2.2 KiB
Python
"""`defdelegate` defines an invocable function in the module (#4132).
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`defdelegate greet(name), to: Greeter` declares a callable `greet` whose body is
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delegated to another module. It has the same `call` head shape as `def`, but was
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missing from the def-family recognizer, so no node was minted and same-module
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calls to the delegated name dangled.
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"""
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from __future__ import annotations
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from pathlib import Path
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from graphify.extract import extract
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def _graph(tmp_path: Path):
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src = tmp_path / "facade.ex"
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src.write_text(
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"defmodule Facade do\n"
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" defdelegate start(x), to: Worker\n"
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" defdelegate stop(x), to: Worker, as: :halt\n"
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" def run(x) do\n"
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" start(x)\n"
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" stop(x)\n"
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" end\n"
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"end\n",
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encoding="utf-8",
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)
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result = extract([src], cache_root=tmp_path / "graphify-out")
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label = {n["id"]: n["label"] for n in result["nodes"]}
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return result, label
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def _edges(result, label, relation):
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return {
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(label[e["source"]], label[e["target"]])
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for e in result["edges"]
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if e["relation"] == relation and e["source"] in label and e["target"] in label
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}
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def test_defdelegate_defines_functions(tmp_path: Path) -> None:
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result, label = _graph(tmp_path)
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labels = set(label.values())
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assert "start()" in labels, "defdelegate function dropped"
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assert "stop()" in labels, "defdelegate-with-as function dropped"
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methods = _edges(result, label, "method")
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assert ("Facade", "start()") in methods
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assert ("Facade", "stop()") in methods
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def test_defdelegate_same_module_calls_resolve(tmp_path: Path) -> None:
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result, label = _graph(tmp_path)
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calls = _edges(result, label, "calls")
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assert ("run()", "start()") in calls, "call to a delegated function dangled"
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assert ("run()", "stop()") in calls
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def test_defdelegate_leaves_no_dangling_edges(tmp_path: Path) -> None:
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result, _ = _graph(tmp_path)
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node_ids = {n["id"] for n in result["nodes"]}
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dangling = [
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e for e in result["edges"]
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if e["source"] not in node_ids or e["target"] not in node_ids
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]
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assert not dangling, f"defdelegate produced dangling edges: {dangling}"
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