rust/src/test/ui/hygiene/generic_params.rs
Tomasz Miąsko 427952e808 Make error and warning annotations mandatory in UI tests
This change makes error and warning annotations mandatory in UI tests.
The only exception are tests that use error patterns to match compiler
output and don't have any annotations.
2019-11-10 21:01:02 +01:00

105 lines
2.5 KiB
Rust

// Ensure that generic parameters always have modern hygiene.
// check-pass
// ignore-pretty pretty-printing is unhygienic
#![feature(decl_macro, rustc_attrs, const_generics)]
//~^ WARNING the feature `const_generics` is incomplete
mod type_params {
macro m($T:ident) {
fn f<$T: Clone, T: PartialEq>(t1: $T, t2: T) -> ($T, bool) {
(t1.clone(), t2 == t2)
}
}
#[rustc_macro_transparency = "semitransparent"]
macro n($T:ident) {
fn g<$T: Clone>(t1: $T, t2: T) -> (T, $T) {
(t1.clone(), t2.clone())
}
fn h<T: Clone>(t1: $T, t2: T) -> (T, $T) {
(t1.clone(), t2.clone())
}
}
#[rustc_macro_transparency = "transparent"]
macro p($T:ident) {
fn j<$T: Clone>(t1: $T, t2: T) -> (T, $T) {
(t1.clone(), t2.clone())
}
fn k<T: Clone>(t1: $T, t2: T) -> (T, $T) {
(t1.clone(), t2.clone())
}
}
m!(T);
n!(T);
p!(T);
}
mod lifetime_params {
macro m($a:lifetime) {
fn f<'b, 'c, $a: 'b, 'a: 'c>(t1: &$a(), t2: &'a ()) -> (&'b (), &'c ()) {
(t1, t2)
}
}
#[rustc_macro_transparency = "semitransparent"]
macro n($a:lifetime) {
fn g<$a>(t1: &$a(), t2: &'a ()) -> (&'a (), &$a ()) {
(t1, t2)
}
fn h<'a>(t1: &$a(), t2: &'a ()) -> (&'a (), &$a ()) {
(t1, t2)
}
}
#[rustc_macro_transparency = "transparent"]
macro p($a:lifetime) {
fn j<$a>(t1: &$a(), t2: &'a ()) -> (&'a (), &$a ()) {
(t1, t2)
}
fn k<'a>(t1: &$a(), t2: &'a ()) -> (&'a (), &$a ()) {
(t1, t2)
}
}
m!('a);
n!('a);
p!('a);
}
mod const_params {
macro m($C:ident) {
fn f<const $C: usize, const C: usize>(t1: [(); $C], t2: [(); C]) -> ([(); $C], [(); C]) {
(t1, t2)
}
}
#[rustc_macro_transparency = "semitransparent"]
macro n($C:ident) {
fn g<const $C: usize>(t1: [(); $C], t2: [(); C]) -> ([(); C], [(); $C]) {
(t1, t2)
}
fn h<const C: usize>(t1: [(); $C], t2: [(); C]) -> ([(); C], [(); $C]) {
(t1, t2)
}
}
#[rustc_macro_transparency = "transparent"]
macro p($C:ident) {
fn j<const $C: usize>(t1: [(); $C], t2: [(); C]) -> ([(); C], [(); $C]) {
(t1, t2)
}
fn k<const C: usize>(t1: [(); $C], t2: [(); C]) -> ([(); C], [(); $C]) {
(t1, t2)
}
}
m!(C);
n!(C);
p!(C);
}
fn main() {}