//! lint on if branches that could be swapped so no `!` operation is necessary
//! on the condition
-use rustc::lint::in_external_macro;
+use rustc_ast::ast::{BinOpKind, Expr, ExprKind, UnOp};
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;
cx,
IF_NOT_ELSE,
item.span,
- "Unnecessary boolean `not` operation",
+ "unnecessary boolean `not` operation",
+ None,
"remove the `!` and swap the blocks of the `if`/`else`",
);
},
cx,
IF_NOT_ELSE,
item.span,
- "Unnecessary `!=` operation",
+ "unnecessary `!=` operation",
+ None,
"change to `==` and swap the blocks of the `if`/`else`",
);
},