mirror of https://github.com/rust-lang/rust.git
87 lines
1.3 KiB
Rust
87 lines
1.3 KiB
Rust
#![feature(no_core, lang_items)]
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#![no_core]
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#[lang="sized"]
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trait Sized {}
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#[lang="copy"]
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trait Copy {}
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#[lang="freeze"]
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trait Freeze {}
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#[lang="mul"]
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trait Mul<RHS = Self> {
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type Output;
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#[must_use]
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fn mul(self, rhs: RHS) -> Self::Output;
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}
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impl Mul for u8 {
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type Output = Self;
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fn mul(self, rhs: Self) -> Self {
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self * rhs
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}
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}
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#[lang="panic"]
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fn panic(_expr_file_line_col: &(&'static str, &'static str, u32, u32)) -> ! {
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loop {}
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}
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#[lang = "drop_in_place"]
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#[allow(unconditional_recursion)]
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unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
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// Code here does not matter - this is replaced by the
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// real drop glue by the compiler.
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drop_in_place(to_drop);
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}
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fn abc(a: u8) -> u8 {
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a * 2
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}
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fn bcd(b: bool, a: u8) -> u8 {
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if b {
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a * 2
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} else {
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a * 3
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}
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}
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// FIXME make calls work
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/*fn call() {
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abc(42);
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}
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fn indirect_call() {
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let f: fn() = call;
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f();
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}*/
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enum BoolOption {
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Some(bool),
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None,
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}
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fn option_unwrap_or(o: BoolOption, d: bool) -> bool {
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match o {
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BoolOption::Some(b) => b,
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BoolOption::None => d,
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}
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}
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fn ret_42() -> u8 {
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42
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}
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fn return_str() -> &'static str {
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"hello world"
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}
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fn promoted_val() -> &'static u8 {
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&(1 * 2)
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}
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