//! Lint on if expressions with an else if, but without a final else branch.
-use rustc::lint::in_external_macro;
+use clippy_utils::diagnostics::span_lint_and_help;
+use rustc_ast::ast::{Expr, ExprKind};
use rustc_lint::{EarlyContext, EarlyLintPass, LintContext};
+use rustc_middle::lint::in_external_macro;
use rustc_session::{declare_lint_pass, declare_tool_lint};
-use syntax::ast::*;
-
-use crate::utils::span_lint_and_help;
declare_clippy_lint! {
- /// **What it does:** Checks for usage of if expressions with an `else if` branch,
+ /// ### What it does
+ /// Checks for usage of if expressions with an `else if` branch,
/// but without a final `else` branch.
///
- /// **Why is this bad?** Some coding guidelines require this (e.g., MISRA-C:2004 Rule 14.10).
- ///
- /// **Known problems:** None.
+ /// ### Why is this bad?
+ /// Some coding guidelines require this (e.g., MISRA-C:2004 Rule 14.10).
///
- /// **Example:**
+ /// ### Example
/// ```rust
/// # fn a() {}
/// # fn b() {}
/// }
/// ```
///
- /// Could be written:
+ /// Use instead:
///
/// ```rust
/// # fn a() {}
/// // We don't care about zero.
/// }
/// ```
+ #[clippy::version = "pre 1.29.0"]
pub ELSE_IF_WITHOUT_ELSE,
restriction,
"`if` expression with an `else if`, but without a final `else` branch"
ELSE_IF_WITHOUT_ELSE,
els.span,
"`if` expression with an `else if`, but without a final `else`",
+ None,
"add an `else` block here",
);
}