tests/ui/collapsible_span_lint_calls.fixed

   1 // run-rustfix
   2 #![deny(clippy::internal)]
   3 #![feature(rustc_private)]
   4
   5 extern crate rustc_ast;
   6 extern crate rustc_errors;
   7 extern crate rustc_lint;
   8 extern crate rustc_session;
   9 extern crate rustc_span;
  10
  11 use rustc_ast::ast::Expr;
  12 use rustc_errors::{Applicability, DiagnosticBuilder};
  13 use rustc_lint::{EarlyContext, EarlyLintPass, Lint, LintContext};
  14 use rustc_session::{declare_lint_pass, declare_tool_lint};
  15 use rustc_span::source_map::Span;
  16
  17 #[allow(unused_variables)]
  18 pub fn span_lint_and_then<'a, T: LintContext, F>(cx: &'a T, lint: &'static Lint, sp: Span, msg: &str, f: F)
  19 where
  20     F: for<'b> FnOnce(&mut DiagnosticBuilder<'b>),
  21 {
  22 }
  23
  24 #[allow(unused_variables)]
  25 fn span_lint_and_help<'a, T: LintContext>(cx: &'a T, lint: &'static Lint, span: Span, msg: &str, help: &str) {}
  26
  27 #[allow(unused_variables)]
  28 fn span_lint_and_note<'a, T: LintContext>(
  29     cx: &'a T,
  30     lint: &'static Lint,
  31     span: Span,
  32     msg: &str,
  33     note_span: Span,
  34     note: &str,
  35 ) {
  36 }
  37
  38 #[allow(unused_variables)]
  39 fn span_lint_and_sugg<'a, T: LintContext>(
  40     cx: &'a T,
  41     lint: &'static Lint,
  42     sp: Span,
  43     msg: &str,
  44     help: &str,
  45     sugg: String,
  46     applicability: Applicability,
  47 ) {
  48 }
  49
  50 declare_tool_lint! {
  51     pub clippy::TEST_LINT,
  52     Warn,
  53     "",
  54     report_in_external_macro: true
  55 }
  56
  57 declare_lint_pass!(Pass => [TEST_LINT]);
  58
  59 impl EarlyLintPass for Pass {
  60     fn check_expr(&mut self, cx: &EarlyContext, expr: &Expr) {
  61         let lint_msg = "lint message";
  62         let help_msg = "help message";
  63         let note_msg = "note message";
  64         let sugg = "new_call()";
  65         let predicate = true;
  66
  67         span_lint_and_sugg(cx, TEST_LINT, expr.span, lint_msg, help_msg, sugg.to_string(), Applicability::MachineApplicable);
  68         span_lint_and_help(cx, TEST_LINT, expr.span, lint_msg, help_msg);
  69         span_lint_and_help(cx, TEST_LINT, expr.span, lint_msg, help_msg);
  70         span_lint_and_note(cx, TEST_LINT, expr.span, lint_msg, expr.span, note_msg);
  71         span_lint_and_note(cx, TEST_LINT, expr.span, lint_msg, expr.span, note_msg);
  72
  73         // This expr shouldn't trigger this lint.
  74         span_lint_and_then(cx, TEST_LINT, expr.span, lint_msg, |db| {
  75             db.note(note_msg);
  76             if predicate {
  77                 db.note(note_msg);
  78             }
  79         })
  80     }
  81 }
  82
  83 fn main() {}