use crate::fmt;
use crate::panic::{Location, PanicInfo};
-#[cfg(bootstrap)]
-#[cold]
-// never inline unless panic_immediate_abort to avoid code
-// bloat at the call sites as much as possible
-#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
-#[lang = "panic"]
-pub fn panic(expr_file_line_col: &(&'static str, &'static str, u32, u32)) -> ! {
- if cfg!(feature = "panic_immediate_abort") {
- unsafe { super::intrinsics::abort() }
- }
-
- // Use Arguments::new_v1 instead of format_args!("{}", expr) to potentially
- // reduce size overhead. The format_args! macro uses str's Display trait to
- // write expr, which calls Formatter::pad, which must accommodate string
- // truncation and padding (even though none is used here). Using
- // Arguments::new_v1 may allow the compiler to omit Formatter::pad from the
- // output binary, saving up to a few kilobytes.
- let (expr, file, line, col) = *expr_file_line_col;
- panic_fmt(fmt::Arguments::new_v1(&[expr], &[]), &(file, line, col))
-}
-
-#[cfg(not(bootstrap))]
#[cold]
// never inline unless panic_immediate_abort to avoid code
// bloat at the call sites as much as possible
panic_fmt(fmt::Arguments::new_v1(&[expr], &[]), location)
}
-#[cfg(bootstrap)]
-#[cold]
-#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
-#[lang = "panic_bounds_check"]
-fn panic_bounds_check(file_line_col: &(&'static str, u32, u32),
- index: usize, len: usize) -> ! {
- if cfg!(feature = "panic_immediate_abort") {
- unsafe { super::intrinsics::abort() }
- }
-
- panic_fmt(format_args!("index out of bounds: the len is {} but the index is {}",
- len, index), file_line_col)
-}
-
-#[cfg(not(bootstrap))]
#[cold]
#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
#[lang = "panic_bounds_check"]
)
}
-#[cfg(bootstrap)]
-#[cold]
-#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
-#[cfg_attr( feature="panic_immediate_abort" ,inline)]
-pub fn panic_fmt(fmt: fmt::Arguments<'_>, file_line_col: &(&'static str, u32, u32)) -> ! {
- if cfg!(feature = "panic_immediate_abort") {
- unsafe { super::intrinsics::abort() }
- }
-
- // NOTE This function never crosses the FFI boundary; it's a Rust-to-Rust call
- extern "Rust" {
- #[lang = "panic_impl"]
- fn panic_impl(pi: &PanicInfo<'_>) -> !;
- }
-
- let (file, line, col) = *file_line_col;
- let location = Location::internal_constructor(file, line, col);
- let pi = PanicInfo::internal_constructor(Some(&fmt), &location);
- unsafe { panic_impl(&pi) }
-}
-
-#[cfg(not(bootstrap))]
#[cold]
#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
#[cfg_attr( feature="panic_immediate_abort" ,inline)]