"""LintQ detector stub -- auto-scaffolded from research note.

Generated by detector_stub_cron.py for cluster 54
(label: PennyLane:parsing).

Source note (#32): PATTERN: Hand-rolled string/expression parsers that drift from the formal grammar or break on edge inputs. 1 issue(s) across: PennyLane. Sample: Open GitHub issue #6132 in PennyLaneAI/pennylane reported by @dwierichs: Raise an error or war…
"""

from __future__ import annotations

from typing import Dict, List


class DetectorParsing:
    """Detect the 'parsing' anti-pattern reported against PennyLane.

    STATUS: STUB. This class was scaffolded automatically from a real issue
    cluster in lintq_research.db. Fill in ``detect`` with the logic below and
    add it to the engine rule set.

    TODO -- implement the detection:
        PATTERN: Hand-rolled string/expression parsers that drift from the formal grammar or break on edge inputs. 1 issue(s) across: PennyLane. Sample: Open GitHub issue #6132 in PennyLaneAI/pennylane reported by @dwierichs: Raise an error or warning in `qml.compile` if `basis_set` contains operations instead o

        DETECTION LOGIC: Add a LintQ detector 'unsafe-custom-parser' that flags quantum programs which invoke bespoke string parsers on parameter expressions (e.g. ParameterExpression constructor parsing) and recommends routing through the canonical tokenizer/grammar. Static heuristic: scan for direct parse()/regex consumption of expression strings instead of the shared parser API.
    """

    id = "parsing"
    theme = "parsing"
    software = "PennyLane"
    cluster_id = 54
    note_id = 32

    def detect(self, facts: Dict) -> List[Dict]:
        """Return a list of warning dicts for the given extracted facts.

        Args:
            facts: the 7-relation EDB fact dict produced by the extractor
                (Stmt, CFGEdge, Assign, CircuitAlloc, GateOp, MeasureOp,
                CircuitCall).

        Returns:
            A list of warning dicts, e.g.
            {"kind": "parsing", "stmt": <id>, "qubit": <q>, "detail": <str>}.
        """
        raise NotImplementedError(
            "Detector stub -- implement 'parsing' detection for PennyLane. "
            "See the TODO block in this class for the source note's logic."
        )