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#![allow(dead_code, missing_docs)]
#![unstable(feature = "core_panic",
reason = "internal details of the implementation of the `panic!` \
and related macros",
issue = "0")]
use crate::fmt;
use crate::panic::{Location, PanicInfo};
#[cfg(bootstrap)]
#[cold]
#[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() }
}
let (expr, file, line, col) = *expr_file_line_col;
panic_fmt(fmt::Arguments::new_v1(&[expr], &[]), &(file, line, col))
}
#[cfg(not(bootstrap))]
#[cold]
#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
#[lang = "panic"]
pub fn panic(expr: &str, location: &Location<'_>) -> ! {
if cfg!(feature = "panic_immediate_abort") {
unsafe { super::intrinsics::abort() }
}
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"]
fn panic_bounds_check(location: &Location<'_>, 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),
location
)
}
#[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() }
}
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)]
pub fn panic_fmt(fmt: fmt::Arguments<'_>, location: &Location<'_>) -> ! {
if cfg!(feature = "panic_immediate_abort") {
unsafe { super::intrinsics::abort() }
}
extern "Rust" {
#[lang = "panic_impl"]
fn panic_impl(pi: &PanicInfo<'_>) -> !;
}
let pi = PanicInfo::internal_constructor(Some(&fmt), location);
unsafe { panic_impl(&pi) }
}