# Expensive projection repeated by a comparator

RuleID: performance.comparator-projection-amplification@1.0.0
Status: recovery-required
Catalog snapshot: 4558458d

## V-PERF-07 — Expensive projection repeated by a comparator

Expensive projection repeated by a comparator. It examines repeated work, allocation, traversal, retention, and scheduling cost. The result remains unknown when the required evidence is incomplete.

Status: recovery-required

Current scope: The source producer still requires recovery and qualification in this snapshot. The target description is not evidence of an active diagnostic.

Evidence boundary: Required evidence must be complete for the selected immutable build snapshot. Otherwise the affected result is unknown.

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Language: en
Canonical: https://docs.swift-analyzer.com/en/catalog/performance.comparator-projection-amplification/
Source revision: 4558458d