// SC2239: Ensure $? is used correctly (placeholder - complex pattern analysis)
#[allow(unused_imports)]
use crate::linter::LintResult;

pub fn check(_source: &str) -> LintResult {
    // Placeholder: Complex rule requiring control flow analysis
    // Would need to track $? usage and ensure it references the intended command
    // Implementation deferred pending AST-based analysis
    LintResult::new()
}

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn test_sc2239_placeholder() {
        let code = "cmd\nif [ $? -eq 0 ]; then";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2239_exit_status_placeholder() {
        let code = "result=$?";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2239_comment_placeholder() {
        let code = "# comment";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0);
    }
    #[test]
    fn test_sc2239_no_code_placeholder() {
        let code = "";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0);
    }
    #[test]
    fn test_sc2239_simple_placeholder() {
        let code = "echo test";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0);
    }
    #[test]
    fn test_sc2239_save_status_placeholder() {
        let code = "important_cmd\nstatus=$?\nlog \"Result: $status\"";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2239_test_status_placeholder() {
        let code = "[ $? -ne 0 ] && exit 1";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2239_chain_placeholder() {
        let code = "cmd1 || cmd2\necho $?";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2239_function_placeholder() {
        let code = "foo() { return 42; }\nfoo\necho $?";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
    #[test]
    fn test_sc2239_pipeline_placeholder() {
        let code = "cmd1 | cmd2\necho $?";
        let result = check(code);
        assert_eq!(result.diagnostics.len(), 0); // Placeholder
    }
}
