just-lsp 0.4.5

A language server for just
Documentation 
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use super::*;

define_rule! {
  /// Emits diagnostics when the same `set` option is declared more than once.
  DuplicateSettingRule {
    id: "duplicate-setting",
    message: "duplicate setting",
    run(context) {
      let mut diagnostics = Vec::new();

      let mut seen = HashSet::new();

      for setting in context.settings() {
        if !seen.insert(setting.name.value.clone()) {
          diagnostics.push(Diagnostic::error(
            format!("Duplicate setting `{}`", setting.name.value),
            setting.range,
          ));
        }
      }

      diagnostics
    }
  }
}