102 lines
2.5 KiB
Rust
102 lines
2.5 KiB
Rust
// run-rustfix
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#![deny(clippy::internal)]
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#![feature(rustc_private)]
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extern crate rustc_ast;
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extern crate rustc_errors;
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extern crate rustc_lint;
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extern crate rustc_session;
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extern crate rustc_span;
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use rustc_ast::ast::Expr;
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use rustc_errors::{Applicability, DiagnosticBuilder};
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use rustc_lint::{EarlyContext, EarlyLintPass, Lint, LintContext};
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use rustc_session::{declare_lint_pass, declare_tool_lint};
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use rustc_span::source_map::Span;
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#[allow(unused_variables)]
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pub fn span_lint_and_then<'a, T: LintContext, F>(cx: &'a T, lint: &'static Lint, sp: Span, msg: &str, f: F)
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where
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F: for<'b> FnOnce(&mut DiagnosticBuilder<'b>),
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{
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}
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#[allow(unused_variables)]
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fn span_lint_and_help<'a, T: LintContext>(
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cx: &'a T,
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lint: &'static Lint,
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span: Span,
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msg: &str,
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option_span: Option<Span>,
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help: &str,
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) {
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}
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#[allow(unused_variables)]
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fn span_lint_and_note<'a, T: LintContext>(
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cx: &'a T,
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lint: &'static Lint,
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span: Span,
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msg: &str,
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note_span: Option<Span>,
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note: &str,
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) {
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}
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#[allow(unused_variables)]
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fn span_lint_and_sugg<'a, T: LintContext>(
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cx: &'a T,
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lint: &'static Lint,
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sp: Span,
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msg: &str,
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help: &str,
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sugg: String,
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applicability: Applicability,
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) {
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}
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declare_tool_lint! {
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pub clippy::TEST_LINT,
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Warn,
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"",
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report_in_external_macro: true
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}
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declare_lint_pass!(Pass => [TEST_LINT]);
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impl EarlyLintPass for Pass {
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fn check_expr(&mut self, cx: &EarlyContext, expr: &Expr) {
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let lint_msg = "lint message";
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let help_msg = "help message";
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let note_msg = "note message";
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let sugg = "new_call()";
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let predicate = true;
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span_lint_and_then(cx, TEST_LINT, expr.span, lint_msg, |db| {
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db.span_suggestion(expr.span, help_msg, sugg.to_string(), Applicability::MachineApplicable);
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});
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span_lint_and_then(cx, TEST_LINT, expr.span, lint_msg, |db| {
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db.span_help(expr.span, help_msg);
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});
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span_lint_and_then(cx, TEST_LINT, expr.span, lint_msg, |db| {
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db.help(help_msg);
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});
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span_lint_and_then(cx, TEST_LINT, expr.span, lint_msg, |db| {
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db.span_note(expr.span, note_msg);
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});
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span_lint_and_then(cx, TEST_LINT, expr.span, lint_msg, |db| {
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db.note(note_msg);
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});
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// This expr shouldn't trigger this lint.
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span_lint_and_then(cx, TEST_LINT, expr.span, lint_msg, |db| {
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db.note(note_msg);
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if predicate {
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db.note(note_msg);
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}
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})
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}
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}
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fn main() {}
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