mcp-server-semgrep/semgrep-rules/javascript/react/correctness/hooks/set-state-no-op.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
  - id: calling-set-state-on-current-state
    patterns:
      - pattern: $Y($X);
      - pattern-inside: |
          const [$X, $Y] = useState(...);
          ...
    message: >-
      Calling setState on the current state is always a no-op. Did you mean to change the state like $Y(!$X) instead?
    languages:
      - javascript
    severity: ERROR
    metadata:
      technology:
        - react
      category: correctness