Rollup merge of #81645 - m-ou-se:panic-lint, r=estebank,flip1995
Add lint for `panic!(123)` which is not accepted in Rust 2021. This extends the `panic_fmt` lint to warn for all cases where the first argument cannot be interpreted as a format string, as will happen in Rust 2021. It suggests to add `"{}",` to format the message as a string. In the case of `std::panic!()`, it also suggests the recently stabilized `std::panic::panic_any()` function as an alternative. It renames the lint to `non_fmt_panic` to match the lint naming guidelines. ![image](https://user-images.githubusercontent.com/783247/106520928-675ea680-64d5-11eb-81f7-d8fa48b93a0b.png) This is part of #80162. r? ```@estebank```
This commit is contained in:
commit
87b269ab66
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@ -28,7 +28,7 @@ pub trait ExpectOne<A: Array> {
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impl<A: Array> ExpectOne<A> for SmallVec<A> {
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fn expect_one(self, err: &'static str) -> A::Item {
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assert!(self.len() == 1, err);
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assert!(self.len() == 1, "{}", err);
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self.into_iter().next().unwrap()
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}
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}
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@ -901,7 +901,7 @@ impl HandlerInner {
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fn span_bug(&mut self, sp: impl Into<MultiSpan>, msg: &str) -> ! {
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self.emit_diag_at_span(Diagnostic::new(Bug, msg), sp);
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panic!(ExplicitBug);
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panic::panic_any(ExplicitBug);
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}
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fn emit_diag_at_span(&mut self, mut diag: Diagnostic, sp: impl Into<MultiSpan>) {
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@ -955,7 +955,7 @@ impl HandlerInner {
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fn bug(&mut self, msg: &str) -> ! {
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self.emit_diagnostic(&Diagnostic::new(Bug, msg));
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panic!(ExplicitBug);
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panic::panic_any(ExplicitBug);
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}
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fn delay_as_bug(&mut self, diagnostic: Diagnostic) {
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@ -55,8 +55,8 @@ mod late;
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mod levels;
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mod methods;
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mod non_ascii_idents;
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mod non_fmt_panic;
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mod nonstandard_style;
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mod panic_fmt;
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mod passes;
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mod redundant_semicolon;
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mod traits;
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@ -81,8 +81,8 @@ use builtin::*;
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use internal::*;
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use methods::*;
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use non_ascii_idents::*;
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use non_fmt_panic::NonPanicFmt;
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use nonstandard_style::*;
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use panic_fmt::PanicFmt;
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use redundant_semicolon::*;
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use traits::*;
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use types::*;
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@ -169,7 +169,7 @@ macro_rules! late_lint_passes {
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ClashingExternDeclarations: ClashingExternDeclarations::new(),
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DropTraitConstraints: DropTraitConstraints,
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TemporaryCStringAsPtr: TemporaryCStringAsPtr,
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PanicFmt: PanicFmt,
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NonPanicFmt: NonPanicFmt,
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]
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);
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};
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@ -0,0 +1,197 @@
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use crate::{LateContext, LateLintPass, LintContext};
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use rustc_ast as ast;
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use rustc_errors::{pluralize, Applicability};
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use rustc_hir as hir;
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use rustc_middle::ty;
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use rustc_parse_format::{ParseMode, Parser, Piece};
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use rustc_span::{sym, symbol::kw, InnerSpan, Span, Symbol};
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declare_lint! {
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/// The `non_fmt_panic` lint detects `panic!(..)` invocations where the first
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/// argument is not a formatting string.
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///
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/// ### Example
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///
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/// ```rust,no_run
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/// panic!("{}");
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/// panic!(123);
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/// ```
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///
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/// {{produces}}
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///
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/// ### Explanation
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///
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/// In Rust 2018 and earlier, `panic!(x)` directly uses `x` as the message.
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/// That means that `panic!("{}")` panics with the message `"{}"` instead
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/// of using it as a formatting string, and `panic!(123)` will panic with
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/// an `i32` as message.
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///
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/// Rust 2021 always interprets the first argument as format string.
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NON_FMT_PANIC,
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Warn,
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"detect single-argument panic!() invocations in which the argument is not a format string",
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report_in_external_macro
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}
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declare_lint_pass!(NonPanicFmt => [NON_FMT_PANIC]);
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impl<'tcx> LateLintPass<'tcx> for NonPanicFmt {
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fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) {
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if let hir::ExprKind::Call(f, [arg]) = &expr.kind {
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if let &ty::FnDef(def_id, _) = cx.typeck_results().expr_ty(f).kind() {
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if Some(def_id) == cx.tcx.lang_items().begin_panic_fn()
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|| Some(def_id) == cx.tcx.lang_items().panic_fn()
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|| Some(def_id) == cx.tcx.lang_items().panic_str()
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{
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if let Some(id) = f.span.ctxt().outer_expn_data().macro_def_id {
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if cx.tcx.is_diagnostic_item(sym::std_panic_2015_macro, id)
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|| cx.tcx.is_diagnostic_item(sym::core_panic_2015_macro, id)
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{
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check_panic(cx, f, arg);
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}
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}
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}
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}
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}
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}
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}
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fn check_panic<'tcx>(cx: &LateContext<'tcx>, f: &'tcx hir::Expr<'tcx>, arg: &'tcx hir::Expr<'tcx>) {
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if let hir::ExprKind::Lit(lit) = &arg.kind {
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if let ast::LitKind::Str(sym, _) = lit.node {
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// The argument is a string literal.
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check_panic_str(cx, f, arg, &sym.as_str());
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return;
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}
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}
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// The argument is *not* a string literal.
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let (span, panic) = panic_call(cx, f);
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cx.struct_span_lint(NON_FMT_PANIC, arg.span, |lint| {
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let mut l = lint.build("panic message is not a string literal");
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l.note("this is no longer accepted in Rust 2021");
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if span.contains(arg.span) {
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l.span_suggestion_verbose(
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arg.span.shrink_to_lo(),
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"add a \"{}\" format string to Display the message",
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"\"{}\", ".into(),
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Applicability::MaybeIncorrect,
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);
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if panic == sym::std_panic_macro {
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l.span_suggestion_verbose(
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span.until(arg.span),
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"or use std::panic::panic_any instead",
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"std::panic::panic_any(".into(),
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Applicability::MachineApplicable,
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);
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}
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}
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l.emit();
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});
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}
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fn check_panic_str<'tcx>(
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cx: &LateContext<'tcx>,
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f: &'tcx hir::Expr<'tcx>,
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arg: &'tcx hir::Expr<'tcx>,
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fmt: &str,
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) {
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if !fmt.contains(&['{', '}'][..]) {
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// No brace, no problem.
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return;
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}
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let fmt_span = arg.span.source_callsite();
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let (snippet, style) = match cx.sess().parse_sess.source_map().span_to_snippet(fmt_span) {
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Ok(snippet) => {
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// Count the number of `#`s between the `r` and `"`.
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let style = snippet.strip_prefix('r').and_then(|s| s.find('"'));
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(Some(snippet), style)
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}
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Err(_) => (None, None),
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};
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let mut fmt_parser =
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Parser::new(fmt.as_ref(), style, snippet.clone(), false, ParseMode::Format);
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let n_arguments = (&mut fmt_parser).filter(|a| matches!(a, Piece::NextArgument(_))).count();
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let (span, _) = panic_call(cx, f);
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if n_arguments > 0 && fmt_parser.errors.is_empty() {
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let arg_spans: Vec<_> = match &fmt_parser.arg_places[..] {
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[] => vec![fmt_span],
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v => v.iter().map(|span| fmt_span.from_inner(*span)).collect(),
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};
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cx.struct_span_lint(NON_FMT_PANIC, arg_spans, |lint| {
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let mut l = lint.build(match n_arguments {
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1 => "panic message contains an unused formatting placeholder",
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_ => "panic message contains unused formatting placeholders",
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});
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l.note("this message is not used as a format string when given without arguments, but will be in Rust 2021");
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if span.contains(arg.span) {
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l.span_suggestion(
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arg.span.shrink_to_hi(),
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&format!("add the missing argument{}", pluralize!(n_arguments)),
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", ...".into(),
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Applicability::HasPlaceholders,
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);
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l.span_suggestion(
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arg.span.shrink_to_lo(),
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"or add a \"{}\" format string to use the message literally",
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"\"{}\", ".into(),
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Applicability::MachineApplicable,
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);
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}
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l.emit();
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});
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} else {
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let brace_spans: Option<Vec<_>> =
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snippet.filter(|s| s.starts_with('"') || s.starts_with("r#")).map(|s| {
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s.char_indices()
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.filter(|&(_, c)| c == '{' || c == '}')
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.map(|(i, _)| fmt_span.from_inner(InnerSpan { start: i, end: i + 1 }))
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.collect()
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});
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let msg = match &brace_spans {
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Some(v) if v.len() == 1 => "panic message contains a brace",
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_ => "panic message contains braces",
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};
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cx.struct_span_lint(NON_FMT_PANIC, brace_spans.unwrap_or(vec![span]), |lint| {
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let mut l = lint.build(msg);
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l.note("this message is not used as a format string, but will be in Rust 2021");
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if span.contains(arg.span) {
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l.span_suggestion(
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arg.span.shrink_to_lo(),
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"add a \"{}\" format string to use the message literally",
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"\"{}\", ".into(),
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Applicability::MachineApplicable,
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);
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}
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l.emit();
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});
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}
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}
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fn panic_call<'tcx>(cx: &LateContext<'tcx>, f: &'tcx hir::Expr<'tcx>) -> (Span, Symbol) {
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let mut expn = f.span.ctxt().outer_expn_data();
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let mut panic_macro = kw::Empty;
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// Unwrap more levels of macro expansion, as panic_2015!()
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// was likely expanded from panic!() and possibly from
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// [debug_]assert!().
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for &i in
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&[sym::std_panic_macro, sym::core_panic_macro, sym::assert_macro, sym::debug_assert_macro]
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{
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let parent = expn.call_site.ctxt().outer_expn_data();
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if parent.macro_def_id.map_or(false, |id| cx.tcx.is_diagnostic_item(i, id)) {
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expn = parent;
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panic_macro = i;
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}
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}
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(expn.call_site, panic_macro)
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}
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@ -1,155 +0,0 @@
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use crate::{LateContext, LateLintPass, LintContext};
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use rustc_ast as ast;
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use rustc_errors::{pluralize, Applicability};
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use rustc_hir as hir;
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use rustc_middle::ty;
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use rustc_parse_format::{ParseMode, Parser, Piece};
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use rustc_span::{sym, InnerSpan};
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declare_lint! {
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/// The `panic_fmt` lint detects `panic!("..")` with `{` or `}` in the string literal.
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///
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/// ### Example
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///
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/// ```rust,no_run
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/// panic!("{}");
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/// ```
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///
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/// {{produces}}
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///
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/// ### Explanation
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///
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/// In Rust 2018 and earlier, `panic!("{}")` panics with the message `"{}"`,
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/// as a `panic!()` invocation with a single argument does not use `format_args!()`.
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/// Rust 2021 interprets this string as format string, which breaks this.
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PANIC_FMT,
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Warn,
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"detect braces in single-argument panic!() invocations",
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report_in_external_macro
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}
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declare_lint_pass!(PanicFmt => [PANIC_FMT]);
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impl<'tcx> LateLintPass<'tcx> for PanicFmt {
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fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) {
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if let hir::ExprKind::Call(f, [arg]) = &expr.kind {
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if let &ty::FnDef(def_id, _) = cx.typeck_results().expr_ty(f).kind() {
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if Some(def_id) == cx.tcx.lang_items().begin_panic_fn()
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|| Some(def_id) == cx.tcx.lang_items().panic_fn()
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{
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check_panic(cx, f, arg);
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}
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}
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}
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}
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}
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fn check_panic<'tcx>(cx: &LateContext<'tcx>, f: &'tcx hir::Expr<'tcx>, arg: &'tcx hir::Expr<'tcx>) {
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if let hir::ExprKind::Lit(lit) = &arg.kind {
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if let ast::LitKind::Str(sym, _) = lit.node {
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let mut expn = f.span.ctxt().outer_expn_data();
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if let Some(id) = expn.macro_def_id {
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if cx.tcx.is_diagnostic_item(sym::std_panic_2015_macro, id)
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|| cx.tcx.is_diagnostic_item(sym::core_panic_2015_macro, id)
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{
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let fmt = sym.as_str();
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if !fmt.contains(&['{', '}'][..]) {
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return;
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}
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let fmt_span = arg.span.source_callsite();
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|
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let (snippet, style) =
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match cx.sess().parse_sess.source_map().span_to_snippet(fmt_span) {
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Ok(snippet) => {
|
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// Count the number of `#`s between the `r` and `"`.
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let style = snippet.strip_prefix('r').and_then(|s| s.find('"'));
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(Some(snippet), style)
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}
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Err(_) => (None, None),
|
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};
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let mut fmt_parser =
|
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Parser::new(fmt.as_ref(), style, snippet.clone(), false, ParseMode::Format);
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let n_arguments =
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(&mut fmt_parser).filter(|a| matches!(a, Piece::NextArgument(_))).count();
|
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|
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// Unwrap more levels of macro expansion, as panic_2015!()
|
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// was likely expanded from panic!() and possibly from
|
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// [debug_]assert!().
|
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for &assert in &[
|
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sym::std_panic_macro,
|
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sym::core_panic_macro,
|
||||
sym::assert_macro,
|
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sym::debug_assert_macro,
|
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] {
|
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let parent = expn.call_site.ctxt().outer_expn_data();
|
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if parent
|
||||
.macro_def_id
|
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.map_or(false, |id| cx.tcx.is_diagnostic_item(assert, id))
|
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{
|
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expn = parent;
|
||||
}
|
||||
}
|
||||
|
||||
if n_arguments > 0 && fmt_parser.errors.is_empty() {
|
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let arg_spans: Vec<_> = match &fmt_parser.arg_places[..] {
|
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[] => vec![fmt_span],
|
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v => v.iter().map(|span| fmt_span.from_inner(*span)).collect(),
|
||||
};
|
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cx.struct_span_lint(PANIC_FMT, arg_spans, |lint| {
|
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let mut l = lint.build(match n_arguments {
|
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1 => "panic message contains an unused formatting placeholder",
|
||||
_ => "panic message contains unused formatting placeholders",
|
||||
});
|
||||
l.note("this message is not used as a format string when given without arguments, but will be in a future Rust edition");
|
||||
if expn.call_site.contains(arg.span) {
|
||||
l.span_suggestion(
|
||||
arg.span.shrink_to_hi(),
|
||||
&format!("add the missing argument{}", pluralize!(n_arguments)),
|
||||
", ...".into(),
|
||||
Applicability::HasPlaceholders,
|
||||
);
|
||||
l.span_suggestion(
|
||||
arg.span.shrink_to_lo(),
|
||||
"or add a \"{}\" format string to use the message literally",
|
||||
"\"{}\", ".into(),
|
||||
Applicability::MachineApplicable,
|
||||
);
|
||||
}
|
||||
l.emit();
|
||||
});
|
||||
} else {
|
||||
let brace_spans: Option<Vec<_>> = snippet
|
||||
.filter(|s| s.starts_with('"') || s.starts_with("r#"))
|
||||
.map(|s| {
|
||||
s.char_indices()
|
||||
.filter(|&(_, c)| c == '{' || c == '}')
|
||||
.map(|(i, _)| {
|
||||
fmt_span.from_inner(InnerSpan { start: i, end: i + 1 })
|
||||
})
|
||||
.collect()
|
||||
});
|
||||
let msg = match &brace_spans {
|
||||
Some(v) if v.len() == 1 => "panic message contains a brace",
|
||||
_ => "panic message contains braces",
|
||||
};
|
||||
cx.struct_span_lint(PANIC_FMT, brace_spans.unwrap_or(vec![expn.call_site]), |lint| {
|
||||
let mut l = lint.build(msg);
|
||||
l.note("this message is not used as a format string, but will be in a future Rust edition");
|
||||
if expn.call_site.contains(arg.span) {
|
||||
l.span_suggestion(
|
||||
arg.span.shrink_to_lo(),
|
||||
"add a \"{}\" format string to use the message literally",
|
||||
"\"{}\", ".into(),
|
||||
Applicability::MachineApplicable,
|
||||
);
|
||||
}
|
||||
l.emit();
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
|
@ -3,7 +3,7 @@
|
|||
use crate::ty::{tls, TyCtxt};
|
||||
use rustc_span::{MultiSpan, Span};
|
||||
use std::fmt;
|
||||
use std::panic::Location;
|
||||
use std::panic::{panic_any, Location};
|
||||
|
||||
#[cold]
|
||||
#[inline(never)]
|
||||
|
@ -32,7 +32,7 @@ fn opt_span_bug_fmt<S: Into<MultiSpan>>(
|
|||
match (tcx, span) {
|
||||
(Some(tcx), Some(span)) => tcx.sess.diagnostic().span_bug(span, &msg),
|
||||
(Some(tcx), None) => tcx.sess.diagnostic().bug(&msg),
|
||||
(None, _) => panic!(msg),
|
||||
(None, _) => panic_any(msg),
|
||||
}
|
||||
});
|
||||
unreachable!();
|
||||
|
|
|
@ -10,22 +10,23 @@ tests. `panic!` is closely tied with the `unwrap` method of both
|
|||
`panic!` when they are set to [`None`] or [`Err`] variants.
|
||||
|
||||
This macro is used to inject panic into a Rust thread, causing the thread to
|
||||
panic entirely. Each thread's panic can be reaped as the [`Box`]`<`[`Any`]`>` type,
|
||||
and the single-argument form of the `panic!` macro will be the value which
|
||||
is transmitted.
|
||||
panic entirely. This macro panics with a string and uses the [`format!`] syntax
|
||||
for building the message.
|
||||
|
||||
Each thread's panic can be reaped as the [`Box`]`<`[`Any`]`>` type,
|
||||
which contains either a `&str` or `String` for regular `panic!()` invocations.
|
||||
To panic with a value of another other type, [`panic_any`] can be used.
|
||||
|
||||
[`Result`] enum is often a better solution for recovering from errors than
|
||||
using the `panic!` macro. This macro should be used to avoid proceeding using
|
||||
incorrect values, such as from external sources. Detailed information about
|
||||
error handling is found in the [book].
|
||||
|
||||
The multi-argument form of this macro panics with a string and has the
|
||||
[`format!`] syntax for building a string.
|
||||
|
||||
See also the macro [`compile_error!`], for raising errors during compilation.
|
||||
|
||||
[ounwrap]: Option::unwrap
|
||||
[runwrap]: Result::unwrap
|
||||
[`panic_any`]: ../std/panic/fn.panic_any.html
|
||||
[`Box`]: ../std/boxed/struct.Box.html
|
||||
[`Any`]: crate::any::Any
|
||||
[`format!`]: ../std/macro.format.html
|
||||
|
@ -42,6 +43,6 @@ program with code `101`.
|
|||
# #![allow(unreachable_code)]
|
||||
panic!();
|
||||
panic!("this is a terrible mistake!");
|
||||
panic!(4); // panic with the value of 4 to be collected elsewhere
|
||||
panic!("this is a {} {message}", "fancy", message = "message");
|
||||
std::panic::panic_any(4); // panic with the value of 4 to be collected elsewhere
|
||||
```
|
||||
|
|
|
@ -77,15 +77,15 @@ fn test_comparison_ops() {
|
|||
for &(op, bs) in v.iter() {
|
||||
let s = format!("%{{1}}%{{2}}%{}%d", op);
|
||||
let res = expand(s.as_bytes(), &[], &mut Variables::new());
|
||||
assert!(res.is_ok(), res.unwrap_err());
|
||||
assert!(res.is_ok(), "{}", res.unwrap_err());
|
||||
assert_eq!(res.unwrap(), vec![b'0' + bs[0]]);
|
||||
let s = format!("%{{1}}%{{1}}%{}%d", op);
|
||||
let res = expand(s.as_bytes(), &[], &mut Variables::new());
|
||||
assert!(res.is_ok(), res.unwrap_err());
|
||||
assert!(res.is_ok(), "{}", res.unwrap_err());
|
||||
assert_eq!(res.unwrap(), vec![b'0' + bs[1]]);
|
||||
let s = format!("%{{2}}%{{1}}%{}%d", op);
|
||||
let res = expand(s.as_bytes(), &[], &mut Variables::new());
|
||||
assert!(res.is_ok(), res.unwrap_err());
|
||||
assert!(res.is_ok(), "{}", res.unwrap_err());
|
||||
assert_eq!(res.unwrap(), vec![b'0' + bs[2]]);
|
||||
}
|
||||
}
|
||||
|
@ -95,13 +95,13 @@ fn test_conditionals() {
|
|||
let mut vars = Variables::new();
|
||||
let s = b"\\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m";
|
||||
let res = expand(s, &[Number(1)], &mut vars);
|
||||
assert!(res.is_ok(), res.unwrap_err());
|
||||
assert!(res.is_ok(), "{}", res.unwrap_err());
|
||||
assert_eq!(res.unwrap(), "\\E[31m".bytes().collect::<Vec<_>>());
|
||||
let res = expand(s, &[Number(8)], &mut vars);
|
||||
assert!(res.is_ok(), res.unwrap_err());
|
||||
assert!(res.is_ok(), "{}", res.unwrap_err());
|
||||
assert_eq!(res.unwrap(), "\\E[90m".bytes().collect::<Vec<_>>());
|
||||
let res = expand(s, &[Number(42)], &mut vars);
|
||||
assert!(res.is_ok(), res.unwrap_err());
|
||||
assert!(res.is_ok(), "{}", res.unwrap_err());
|
||||
assert_eq!(res.unwrap(), "\\E[38;5;42m".bytes().collect::<Vec<_>>());
|
||||
}
|
||||
|
||||
|
|
|
@ -199,7 +199,7 @@ fn test_should_panic_bad_message() {
|
|||
fn test_should_panic_non_string_message_type() {
|
||||
use crate::tests::TrFailedMsg;
|
||||
fn f() {
|
||||
panic!(1i32);
|
||||
std::panic::panic_any(1i32);
|
||||
}
|
||||
let expected = "foobar";
|
||||
let failed_msg = format!(
|
||||
|
|
|
@ -50,7 +50,7 @@ fn test() {
|
|||
.output().unwrap();
|
||||
|
||||
assert!(child_output.status.success(),
|
||||
format!("child assertion failed\n child stdout:\n {}\n child stderr:\n {}",
|
||||
str::from_utf8(&child_output.stdout).unwrap(),
|
||||
str::from_utf8(&child_output.stderr).unwrap()));
|
||||
"child assertion failed\n child stdout:\n {}\n child stderr:\n {}",
|
||||
str::from_utf8(&child_output.stdout).unwrap(),
|
||||
str::from_utf8(&child_output.stderr).unwrap());
|
||||
}
|
||||
|
|
|
@ -1,4 +1,5 @@
|
|||
#![feature(const_panic)]
|
||||
#![allow(non_fmt_panic)]
|
||||
#![crate_type = "lib"]
|
||||
|
||||
const MSG: &str = "hello";
|
||||
|
|
|
@ -1,10 +1,10 @@
|
|||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:6:15
|
||||
--> $DIR/const_panic.rs:7:15
|
||||
|
|
||||
LL | const Z: () = std::panic!("cheese");
|
||||
| --------------^^^^^^^^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'cheese', $DIR/const_panic.rs:6:15
|
||||
| the evaluated program panicked at 'cheese', $DIR/const_panic.rs:7:15
|
||||
|
|
||||
= note: `#[deny(const_err)]` on by default
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
|
@ -12,108 +12,108 @@ LL | const Z: () = std::panic!("cheese");
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:10:16
|
||||
--> $DIR/const_panic.rs:11:16
|
||||
|
|
||||
LL | const Z2: () = std::panic!();
|
||||
| ---------------^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'explicit panic', $DIR/const_panic.rs:10:16
|
||||
| the evaluated program panicked at 'explicit panic', $DIR/const_panic.rs:11:16
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:14:15
|
||||
--> $DIR/const_panic.rs:15:15
|
||||
|
|
||||
LL | const Y: () = std::unreachable!();
|
||||
| --------------^^^^^^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:14:15
|
||||
| the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:15:15
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:18:15
|
||||
--> $DIR/const_panic.rs:19:15
|
||||
|
|
||||
LL | const X: () = std::unimplemented!();
|
||||
| --------------^^^^^^^^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'not implemented', $DIR/const_panic.rs:18:15
|
||||
| the evaluated program panicked at 'not implemented', $DIR/const_panic.rs:19:15
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:22:15
|
||||
--> $DIR/const_panic.rs:23:15
|
||||
|
|
||||
LL | const W: () = std::panic!(MSG);
|
||||
| --------------^^^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'hello', $DIR/const_panic.rs:22:15
|
||||
| the evaluated program panicked at 'hello', $DIR/const_panic.rs:23:15
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:26:20
|
||||
--> $DIR/const_panic.rs:27:20
|
||||
|
|
||||
LL | const Z_CORE: () = core::panic!("cheese");
|
||||
| -------------------^^^^^^^^^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'cheese', $DIR/const_panic.rs:26:20
|
||||
| the evaluated program panicked at 'cheese', $DIR/const_panic.rs:27:20
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:30:21
|
||||
--> $DIR/const_panic.rs:31:21
|
||||
|
|
||||
LL | const Z2_CORE: () = core::panic!();
|
||||
| --------------------^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'explicit panic', $DIR/const_panic.rs:30:21
|
||||
| the evaluated program panicked at 'explicit panic', $DIR/const_panic.rs:31:21
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:34:20
|
||||
--> $DIR/const_panic.rs:35:20
|
||||
|
|
||||
LL | const Y_CORE: () = core::unreachable!();
|
||||
| -------------------^^^^^^^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:34:20
|
||||
| the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:35:20
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:38:20
|
||||
--> $DIR/const_panic.rs:39:20
|
||||
|
|
||||
LL | const X_CORE: () = core::unimplemented!();
|
||||
| -------------------^^^^^^^^^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'not implemented', $DIR/const_panic.rs:38:20
|
||||
| the evaluated program panicked at 'not implemented', $DIR/const_panic.rs:39:20
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: any use of this value will cause an error
|
||||
--> $DIR/const_panic.rs:42:20
|
||||
--> $DIR/const_panic.rs:43:20
|
||||
|
|
||||
LL | const W_CORE: () = core::panic!(MSG);
|
||||
| -------------------^^^^^^^^^^^^^^^^^-
|
||||
| |
|
||||
| the evaluated program panicked at 'hello', $DIR/const_panic.rs:42:20
|
||||
| the evaluated program panicked at 'hello', $DIR/const_panic.rs:43:20
|
||||
|
|
||||
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
|
||||
= note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
|
||||
|
|
|
@ -82,7 +82,7 @@ impl Allocator {
|
|||
self.cur_ops.set(self.cur_ops.get() + 1);
|
||||
|
||||
if self.cur_ops.get() == self.failing_op {
|
||||
panic!(InjectedFailure);
|
||||
panic::panic_any(InjectedFailure);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
@ -46,7 +46,7 @@ impl Allocator {
|
|||
self.cur_ops.set(self.cur_ops.get() + 1);
|
||||
|
||||
if self.cur_ops.get() == self.failing_op {
|
||||
panic!(InjectedFailure);
|
||||
panic::panic_any(InjectedFailure);
|
||||
}
|
||||
|
||||
let mut data = self.data.borrow_mut();
|
||||
|
@ -67,7 +67,7 @@ impl<'a> Drop for Ptr<'a> {
|
|||
self.1.cur_ops.set(self.1.cur_ops.get() + 1);
|
||||
|
||||
if self.1.cur_ops.get() == self.1.failing_op {
|
||||
panic!(InjectedFailure);
|
||||
panic::panic_any(InjectedFailure);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
@ -31,7 +31,7 @@ fn panic_with_single_argument_does_not_get_formatted() {
|
|||
// RFC #2795 suggests that this may need to change so that captured arguments are formatted.
|
||||
// For stability reasons this will need to part of an edition change.
|
||||
|
||||
#[allow(panic_fmt)]
|
||||
#[allow(non_fmt_panic)]
|
||||
let msg = std::panic::catch_unwind(|| {
|
||||
panic!("{foo}");
|
||||
}).unwrap_err();
|
||||
|
|
|
@ -2,6 +2,8 @@
|
|||
// error-pattern:panicked at 'test-assert-owned'
|
||||
// ignore-emscripten no processes
|
||||
|
||||
#![allow(non_fmt_panic)]
|
||||
|
||||
fn main() {
|
||||
assert!(false, "test-assert-owned".to_string());
|
||||
}
|
||||
|
|
|
@ -57,7 +57,7 @@ fn writeln_1arg() {
|
|||
//
|
||||
// (Example: Issue #48042)
|
||||
#[test]
|
||||
#[allow(panic_fmt)]
|
||||
#[allow(non_fmt_panic)]
|
||||
fn to_format_or_not_to_format() {
|
||||
// ("{}" is the easiest string to test because if this gets
|
||||
// sent to format_args!, it'll simply fail to compile.
|
||||
|
|
|
@ -38,7 +38,7 @@ fn main() {
|
|||
assert_eq!(get(), vec![0, 2, 3, 1]);
|
||||
|
||||
let _ = std::panic::catch_unwind(|| {
|
||||
(d(4), &d(5), d(6), &d(7), panic!(InjectedFailure));
|
||||
(d(4), &d(5), d(6), &d(7), panic::panic_any(InjectedFailure));
|
||||
});
|
||||
|
||||
// here, the temporaries (5/7) live until the end of the
|
||||
|
|
|
@ -13,19 +13,27 @@ fn main() {
|
|||
core::panic!("Hello {}"); //~ WARN panic message contains an unused formatting placeholder
|
||||
assert!(false, "{:03x} {test} bla");
|
||||
//~^ WARN panic message contains unused formatting placeholders
|
||||
assert!(false, S);
|
||||
//~^ WARN panic message is not a string literal
|
||||
debug_assert!(false, "{{}} bla"); //~ WARN panic message contains braces
|
||||
panic!(C); // No warning (yet)
|
||||
panic!(S); // No warning (yet)
|
||||
panic!(C); //~ WARN panic message is not a string literal
|
||||
panic!(S); //~ WARN panic message is not a string literal
|
||||
std::panic!(123); //~ WARN panic message is not a string literal
|
||||
core::panic!(&*"abc"); //~ WARN panic message is not a string literal
|
||||
panic!(concat!("{", "}")); //~ WARN panic message contains an unused formatting placeholder
|
||||
panic!(concat!("{", "{")); //~ WARN panic message contains braces
|
||||
|
||||
fancy_panic::fancy_panic!("test {} 123");
|
||||
//~^ WARN panic message contains an unused formatting placeholder
|
||||
|
||||
fancy_panic::fancy_panic!(S);
|
||||
//~^ WARN panic message is not a string literal
|
||||
|
||||
// Check that the lint only triggers for std::panic and core::panic,
|
||||
// not any panic macro:
|
||||
macro_rules! panic {
|
||||
($e:expr) => ();
|
||||
}
|
||||
panic!("{}"); // OK
|
||||
panic!(S); // OK
|
||||
}
|
|
@ -1,35 +1,35 @@
|
|||
warning: panic message contains a brace
|
||||
--> $DIR/panic-brace.rs:11:29
|
||||
--> $DIR/non-fmt-panic.rs:11:29
|
||||
|
|
||||
LL | panic!("here's a brace: {");
|
||||
| ^
|
||||
|
|
||||
= note: `#[warn(panic_fmt)]` on by default
|
||||
= note: this message is not used as a format string, but will be in a future Rust edition
|
||||
= note: `#[warn(non_fmt_panic)]` on by default
|
||||
= note: this message is not used as a format string, but will be in Rust 2021
|
||||
help: add a "{}" format string to use the message literally
|
||||
|
|
||||
LL | panic!("{}", "here's a brace: {");
|
||||
| ^^^^^
|
||||
|
||||
warning: panic message contains a brace
|
||||
--> $DIR/panic-brace.rs:12:31
|
||||
--> $DIR/non-fmt-panic.rs:12:31
|
||||
|
|
||||
LL | std::panic!("another one: }");
|
||||
| ^
|
||||
|
|
||||
= note: this message is not used as a format string, but will be in a future Rust edition
|
||||
= note: this message is not used as a format string, but will be in Rust 2021
|
||||
help: add a "{}" format string to use the message literally
|
||||
|
|
||||
LL | std::panic!("{}", "another one: }");
|
||||
| ^^^^^
|
||||
|
||||
warning: panic message contains an unused formatting placeholder
|
||||
--> $DIR/panic-brace.rs:13:25
|
||||
--> $DIR/non-fmt-panic.rs:13:25
|
||||
|
|
||||
LL | core::panic!("Hello {}");
|
||||
| ^^
|
||||
|
|
||||
= note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
|
||||
= note: this message is not used as a format string when given without arguments, but will be in Rust 2021
|
||||
help: add the missing argument
|
||||
|
|
||||
LL | core::panic!("Hello {}", ...);
|
||||
|
@ -40,12 +40,12 @@ LL | core::panic!("{}", "Hello {}");
|
|||
| ^^^^^
|
||||
|
||||
warning: panic message contains unused formatting placeholders
|
||||
--> $DIR/panic-brace.rs:14:21
|
||||
--> $DIR/non-fmt-panic.rs:14:21
|
||||
|
|
||||
LL | assert!(false, "{:03x} {test} bla");
|
||||
| ^^^^^^ ^^^^^^
|
||||
|
|
||||
= note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
|
||||
= note: this message is not used as a format string when given without arguments, but will be in Rust 2021
|
||||
help: add the missing arguments
|
||||
|
|
||||
LL | assert!(false, "{:03x} {test} bla", ...);
|
||||
|
@ -55,25 +55,97 @@ help: or add a "{}" format string to use the message literally
|
|||
LL | assert!(false, "{}", "{:03x} {test} bla");
|
||||
| ^^^^^
|
||||
|
||||
warning: panic message is not a string literal
|
||||
--> $DIR/non-fmt-panic.rs:16:20
|
||||
|
|
||||
LL | assert!(false, S);
|
||||
| ^
|
||||
|
|
||||
= note: this is no longer accepted in Rust 2021
|
||||
help: add a "{}" format string to Display the message
|
||||
|
|
||||
LL | assert!(false, "{}", S);
|
||||
| ^^^^^
|
||||
|
||||
warning: panic message contains braces
|
||||
--> $DIR/panic-brace.rs:16:27
|
||||
--> $DIR/non-fmt-panic.rs:18:27
|
||||
|
|
||||
LL | debug_assert!(false, "{{}} bla");
|
||||
| ^^^^
|
||||
|
|
||||
= note: this message is not used as a format string, but will be in a future Rust edition
|
||||
= note: this message is not used as a format string, but will be in Rust 2021
|
||||
help: add a "{}" format string to use the message literally
|
||||
|
|
||||
LL | debug_assert!(false, "{}", "{{}} bla");
|
||||
| ^^^^^
|
||||
|
||||
warning: panic message is not a string literal
|
||||
--> $DIR/non-fmt-panic.rs:19:12
|
||||
|
|
||||
LL | panic!(C);
|
||||
| ^
|
||||
|
|
||||
= note: this is no longer accepted in Rust 2021
|
||||
help: add a "{}" format string to Display the message
|
||||
|
|
||||
LL | panic!("{}", C);
|
||||
| ^^^^^
|
||||
help: or use std::panic::panic_any instead
|
||||
|
|
||||
LL | std::panic::panic_any(C);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
warning: panic message is not a string literal
|
||||
--> $DIR/non-fmt-panic.rs:20:12
|
||||
|
|
||||
LL | panic!(S);
|
||||
| ^
|
||||
|
|
||||
= note: this is no longer accepted in Rust 2021
|
||||
help: add a "{}" format string to Display the message
|
||||
|
|
||||
LL | panic!("{}", S);
|
||||
| ^^^^^
|
||||
help: or use std::panic::panic_any instead
|
||||
|
|
||||
LL | std::panic::panic_any(S);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
warning: panic message is not a string literal
|
||||
--> $DIR/non-fmt-panic.rs:21:17
|
||||
|
|
||||
LL | std::panic!(123);
|
||||
| ^^^
|
||||
|
|
||||
= note: this is no longer accepted in Rust 2021
|
||||
help: add a "{}" format string to Display the message
|
||||
|
|
||||
LL | std::panic!("{}", 123);
|
||||
| ^^^^^
|
||||
help: or use std::panic::panic_any instead
|
||||
|
|
||||
LL | std::panic::panic_any(123);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
warning: panic message is not a string literal
|
||||
--> $DIR/non-fmt-panic.rs:22:18
|
||||
|
|
||||
LL | core::panic!(&*"abc");
|
||||
| ^^^^^^^
|
||||
|
|
||||
= note: this is no longer accepted in Rust 2021
|
||||
help: add a "{}" format string to Display the message
|
||||
|
|
||||
LL | core::panic!("{}", &*"abc");
|
||||
| ^^^^^
|
||||
|
||||
warning: panic message contains an unused formatting placeholder
|
||||
--> $DIR/panic-brace.rs:19:12
|
||||
--> $DIR/non-fmt-panic.rs:23:12
|
||||
|
|
||||
LL | panic!(concat!("{", "}"));
|
||||
| ^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
|
||||
= note: this message is not used as a format string when given without arguments, but will be in Rust 2021
|
||||
help: add the missing argument
|
||||
|
|
||||
LL | panic!(concat!("{", "}"), ...);
|
||||
|
@ -84,24 +156,32 @@ LL | panic!("{}", concat!("{", "}"));
|
|||
| ^^^^^
|
||||
|
||||
warning: panic message contains braces
|
||||
--> $DIR/panic-brace.rs:20:5
|
||||
--> $DIR/non-fmt-panic.rs:24:5
|
||||
|
|
||||
LL | panic!(concat!("{", "{"));
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: this message is not used as a format string, but will be in a future Rust edition
|
||||
= note: this message is not used as a format string, but will be in Rust 2021
|
||||
help: add a "{}" format string to use the message literally
|
||||
|
|
||||
LL | panic!("{}", concat!("{", "{"));
|
||||
| ^^^^^
|
||||
|
||||
warning: panic message contains an unused formatting placeholder
|
||||
--> $DIR/panic-brace.rs:22:37
|
||||
--> $DIR/non-fmt-panic.rs:26:37
|
||||
|
|
||||
LL | fancy_panic::fancy_panic!("test {} 123");
|
||||
| ^^
|
||||
|
|
||||
= note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
|
||||
= note: this message is not used as a format string when given without arguments, but will be in Rust 2021
|
||||
|
||||
warning: 8 warnings emitted
|
||||
warning: panic message is not a string literal
|
||||
--> $DIR/non-fmt-panic.rs:29:31
|
||||
|
|
||||
LL | fancy_panic::fancy_panic!(S);
|
||||
| ^
|
||||
|
|
||||
= note: this is no longer accepted in Rust 2021
|
||||
|
||||
warning: 14 warnings emitted
|
||||
|
|
@ -1,5 +1,6 @@
|
|||
#![allow(unused_assignments)]
|
||||
#![allow(unused_variables)]
|
||||
#![allow(non_fmt_panic)]
|
||||
|
||||
// run-fail
|
||||
// error-pattern:wooooo
|
||||
|
|
|
@ -2,6 +2,8 @@
|
|||
// error-pattern:panicked at 'Box<Any>'
|
||||
// ignore-emscripten no processes
|
||||
|
||||
#![allow(non_fmt_panic)]
|
||||
|
||||
fn main() {
|
||||
panic!(Box::new(612_i64));
|
||||
}
|
||||
|
|
|
@ -3,6 +3,7 @@
|
|||
// ignore-emscripten no processes
|
||||
|
||||
#![feature(box_syntax)]
|
||||
#![allow(non_fmt_panic)]
|
||||
|
||||
fn main() {
|
||||
panic!(box 413 as Box<dyn std::any::Any + Send>);
|
||||
|
|
|
@ -5,7 +5,7 @@
|
|||
// ignore-emscripten no processes
|
||||
|
||||
fn main() {
|
||||
panic!({
|
||||
panic!("{}", {
|
||||
while true {
|
||||
panic!("giraffe")
|
||||
}
|
||||
|
|
|
@ -2183,7 +2183,7 @@ fn lint_expect_fun_call(
|
|||
span_replace_word,
|
||||
&format!("use of `{}` followed by a function call", name),
|
||||
"try this",
|
||||
format!("unwrap_or_else({} {{ panic!({}) }})", closure_args, arg_root_snippet),
|
||||
format!("unwrap_or_else({} {{ panic!(\"{{}}\", {}) }})", closure_args, arg_root_snippet),
|
||||
applicability,
|
||||
);
|
||||
}
|
||||
|
|
|
@ -9,14 +9,12 @@ fn test_missing_tests() {
|
|||
if !missing_files.is_empty() {
|
||||
assert!(
|
||||
false,
|
||||
format!(
|
||||
"Didn't see a test file for the following files:\n\n{}\n",
|
||||
missing_files
|
||||
.iter()
|
||||
.map(|s| format!("\t{}", s))
|
||||
.collect::<Vec<_>>()
|
||||
.join("\n")
|
||||
)
|
||||
"Didn't see a test file for the following files:\n\n{}\n",
|
||||
missing_files
|
||||
.iter()
|
||||
.map(|s| format!("\t{}", s))
|
||||
.collect::<Vec<_>>()
|
||||
.join("\n")
|
||||
);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -1,3 +1,5 @@
|
|||
#![allow(non_fmt_panic)]
|
||||
|
||||
macro_rules! assert_const {
|
||||
($len:expr) => {
|
||||
assert!($len > 0);
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
error: `assert!(true)` will be optimized out by the compiler
|
||||
--> $DIR/assertions_on_constants.rs:9:5
|
||||
--> $DIR/assertions_on_constants.rs:11:5
|
||||
|
|
||||
LL | assert!(true);
|
||||
| ^^^^^^^^^^^^^^
|
||||
|
@ -9,7 +9,7 @@ LL | assert!(true);
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: `assert!(false)` should probably be replaced
|
||||
--> $DIR/assertions_on_constants.rs:10:5
|
||||
--> $DIR/assertions_on_constants.rs:12:5
|
||||
|
|
||||
LL | assert!(false);
|
||||
| ^^^^^^^^^^^^^^^
|
||||
|
@ -18,7 +18,7 @@ LL | assert!(false);
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: `assert!(true)` will be optimized out by the compiler
|
||||
--> $DIR/assertions_on_constants.rs:11:5
|
||||
--> $DIR/assertions_on_constants.rs:13:5
|
||||
|
|
||||
LL | assert!(true, "true message");
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
@ -27,7 +27,7 @@ LL | assert!(true, "true message");
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: `assert!(false, "false message")` should probably be replaced
|
||||
--> $DIR/assertions_on_constants.rs:12:5
|
||||
--> $DIR/assertions_on_constants.rs:14:5
|
||||
|
|
||||
LL | assert!(false, "false message");
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
@ -36,7 +36,7 @@ LL | assert!(false, "false message");
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: `assert!(false, msg.to_uppercase())` should probably be replaced
|
||||
--> $DIR/assertions_on_constants.rs:15:5
|
||||
--> $DIR/assertions_on_constants.rs:17:5
|
||||
|
|
||||
LL | assert!(false, msg.to_uppercase());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
@ -45,7 +45,7 @@ LL | assert!(false, msg.to_uppercase());
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: `assert!(true)` will be optimized out by the compiler
|
||||
--> $DIR/assertions_on_constants.rs:18:5
|
||||
--> $DIR/assertions_on_constants.rs:20:5
|
||||
|
|
||||
LL | assert!(B);
|
||||
| ^^^^^^^^^^^
|
||||
|
@ -54,7 +54,7 @@ LL | assert!(B);
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: `assert!(false)` should probably be replaced
|
||||
--> $DIR/assertions_on_constants.rs:21:5
|
||||
--> $DIR/assertions_on_constants.rs:23:5
|
||||
|
|
||||
LL | assert!(C);
|
||||
| ^^^^^^^^^^^
|
||||
|
@ -63,7 +63,7 @@ LL | assert!(C);
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: `assert!(false, "C message")` should probably be replaced
|
||||
--> $DIR/assertions_on_constants.rs:22:5
|
||||
--> $DIR/assertions_on_constants.rs:24:5
|
||||
|
|
||||
LL | assert!(C, "C message");
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
@ -72,7 +72,7 @@ LL | assert!(C, "C message");
|
|||
= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
|
||||
|
||||
error: `debug_assert!(true)` will be optimized out by the compiler
|
||||
--> $DIR/assertions_on_constants.rs:24:5
|
||||
--> $DIR/assertions_on_constants.rs:26:5
|
||||
|
|
||||
LL | debug_assert!(true);
|
||||
| ^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
|
@ -74,12 +74,12 @@ fn main() {
|
|||
"foo"
|
||||
}
|
||||
|
||||
Some("foo").unwrap_or_else(|| { panic!(get_string()) });
|
||||
Some("foo").unwrap_or_else(|| { panic!(get_string()) });
|
||||
Some("foo").unwrap_or_else(|| { panic!(get_string()) });
|
||||
Some("foo").unwrap_or_else(|| { panic!("{}", get_string()) });
|
||||
Some("foo").unwrap_or_else(|| { panic!("{}", get_string()) });
|
||||
Some("foo").unwrap_or_else(|| { panic!("{}", get_string()) });
|
||||
|
||||
Some("foo").unwrap_or_else(|| { panic!(get_static_str()) });
|
||||
Some("foo").unwrap_or_else(|| { panic!(get_non_static_str(&0).to_string()) });
|
||||
Some("foo").unwrap_or_else(|| { panic!("{}", get_static_str()) });
|
||||
Some("foo").unwrap_or_else(|| { panic!("{}", get_non_static_str(&0).to_string()) });
|
||||
}
|
||||
|
||||
//Issue #3839
|
||||
|
|
|
@ -34,31 +34,31 @@ error: use of `expect` followed by a function call
|
|||
--> $DIR/expect_fun_call.rs:77:21
|
||||
|
|
||||
LL | Some("foo").expect(&get_string());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!(get_string()) })`
|
||||
| ^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_string()) })`
|
||||
|
||||
error: use of `expect` followed by a function call
|
||||
--> $DIR/expect_fun_call.rs:78:21
|
||||
|
|
||||
LL | Some("foo").expect(get_string().as_ref());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!(get_string()) })`
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_string()) })`
|
||||
|
||||
error: use of `expect` followed by a function call
|
||||
--> $DIR/expect_fun_call.rs:79:21
|
||||
|
|
||||
LL | Some("foo").expect(get_string().as_str());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!(get_string()) })`
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_string()) })`
|
||||
|
||||
error: use of `expect` followed by a function call
|
||||
--> $DIR/expect_fun_call.rs:81:21
|
||||
|
|
||||
LL | Some("foo").expect(get_static_str());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!(get_static_str()) })`
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_static_str()) })`
|
||||
|
||||
error: use of `expect` followed by a function call
|
||||
--> $DIR/expect_fun_call.rs:82:21
|
||||
|
|
||||
LL | Some("foo").expect(get_non_static_str(&0));
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!(get_non_static_str(&0).to_string()) })`
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| { panic!("{}", get_non_static_str(&0).to_string()) })`
|
||||
|
||||
error: use of `expect` followed by a function call
|
||||
--> $DIR/expect_fun_call.rs:86:16
|
||||
|
|
|
@ -36,7 +36,7 @@ impl From<Option<String>> for Invalid {
|
|||
fn from(s: Option<String>) -> Invalid {
|
||||
let s = s.unwrap();
|
||||
if !s.is_empty() {
|
||||
panic!(42);
|
||||
panic!("42");
|
||||
} else if s.parse::<u32>().unwrap() != 42 {
|
||||
panic!("{:?}", s);
|
||||
}
|
||||
|
|
|
@ -59,8 +59,8 @@ note: potential failure(s)
|
|||
LL | let s = s.unwrap();
|
||||
| ^^^^^^^^^^
|
||||
LL | if !s.is_empty() {
|
||||
LL | panic!(42);
|
||||
| ^^^^^^^^^^^
|
||||
LL | panic!("42");
|
||||
| ^^^^^^^^^^^^^
|
||||
LL | } else if s.parse::<u32>().unwrap() != 42 {
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
LL | panic!("{:?}", s);
|
||||
|
|
Loading…
Reference in New Issue