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|
// Here we test all kinds of range patterns in terms of parsing / recovery.
// We want to ensure that:
// 1. Things parse as they should.
// 2. Or at least we have parser recovery if they don't.
#![feature(exclusive_range_pattern)]
#![feature(half_open_range_patterns)]
#![deny(ellipsis_inclusive_range_patterns)]
fn main() {}
const X: u8 = 0;
const Y: u8 = 3;
fn exclusive_from_to() {
if let 0..3 = 0 {} // OK.
if let 0..Y = 0 {} // OK.
if let X..3 = 0 {} // OK.
if let X..Y = 0 {} // OK.
if let true..Y = 0 {} //~ ERROR only `char` and numeric types
if let X..true = 0 {} //~ ERROR only `char` and numeric types
if let .0..Y = 0 {} //~ ERROR mismatched types
//~^ ERROR float literals must have an integer part
if let X.. .0 = 0 {} //~ ERROR mismatched types
//~^ ERROR float literals must have an integer part
}
fn inclusive_from_to() {
if let 0..=3 = 0 {} // OK.
if let 0..=Y = 0 {} // OK.
if let X..=3 = 0 {} // OK.
if let X..=Y = 0 {} // OK.
if let true..=Y = 0 {} //~ ERROR only `char` and numeric types
if let X..=true = 0 {} //~ ERROR only `char` and numeric types
if let .0..=Y = 0 {} //~ ERROR mismatched types
//~^ ERROR float literals must have an integer part
if let X..=.0 = 0 {} //~ ERROR mismatched types
//~^ ERROR float literals must have an integer part
}
fn inclusive2_from_to() {
if let 0...3 = 0 {}
//~^ ERROR `...` range patterns are deprecated
//~| WARN this is accepted in the current edition
if let 0...Y = 0 {}
//~^ ERROR `...` range patterns are deprecated
//~| WARN this is accepted in the current edition
if let X...3 = 0 {}
//~^ ERROR `...` range patterns are deprecated
//~| WARN this is accepted in the current edition
if let X...Y = 0 {}
//~^ ERROR `...` range patterns are deprecated
//~| WARN this is accepted in the current edition
if let true...Y = 0 {} //~ ERROR only `char` and numeric types
//~^ ERROR `...` range patterns are deprecated
//~| WARN this is accepted in the current edition
if let X...true = 0 {} //~ ERROR only `char` and numeric types
//~^ ERROR `...` range patterns are deprecated
//~| WARN this is accepted in the current edition
if let .0...Y = 0 {} //~ ERROR mismatched types
//~^ ERROR float literals must have an integer part
//~| WARN this is accepted in the current edition
//~| ERROR `...` range patterns are deprecated
if let X... .0 = 0 {} //~ ERROR mismatched types
//~^ ERROR float literals must have an integer part
//~| ERROR `...` range patterns are deprecated
//~| WARN this is accepted in the current edition
}
fn exclusive_from() {
if let 0.. = 0 {}
if let X.. = 0 {}
if let true.. = 0 {}
//~^ ERROR only `char` and numeric types
if let .0.. = 0 {}
//~^ ERROR float literals must have an integer part
//~| ERROR mismatched types
}
fn inclusive_from() {
if let 0..= = 0 {} //~ ERROR inclusive range with no end
if let X..= = 0 {} //~ ERROR inclusive range with no end
if let true..= = 0 {} //~ ERROR inclusive range with no end
//~| ERROR only `char` and numeric types
if let .0..= = 0 {} //~ ERROR inclusive range with no end
//~^ ERROR float literals must have an integer part
//~| ERROR mismatched types
}
fn inclusive2_from() {
if let 0... = 0 {} //~ ERROR inclusive range with no end
if let X... = 0 {} //~ ERROR inclusive range with no end
if let true... = 0 {} //~ ERROR inclusive range with no end
//~| ERROR only `char` and numeric types
if let .0... = 0 {} //~ ERROR inclusive range with no end
//~^ ERROR float literals must have an integer part
//~| ERROR mismatched types
}
fn exclusive_to() {
if let ..0 = 0 {}
if let ..Y = 0 {}
if let ..true = 0 {}
//~^ ERROR only `char` and numeric types
if let .. .0 = 0 {}
//~^ ERROR float literals must have an integer part
//~| ERROR mismatched types
}
fn inclusive_to() {
if let ..=3 = 0 {}
if let ..=Y = 0 {}
if let ..=true = 0 {}
//~^ ERROR only `char` and numeric types
if let ..=.0 = 0 {}
//~^ ERROR float literals must have an integer part
//~| ERROR mismatched types
}
fn inclusive2_to() {
if let ...3 = 0 {}
//~^ ERROR range-to patterns with `...` are not allowed
if let ...Y = 0 {}
//~^ ERROR range-to patterns with `...` are not allowed
if let ...true = 0 {}
//~^ ERROR range-to patterns with `...` are not allowed
//~| ERROR only `char` and numeric types
if let ....3 = 0 {}
//~^ ERROR float literals must have an integer part
//~| ERROR range-to patterns with `...` are not allowed
//~| ERROR mismatched types
}
fn with_macro_expr_var() {
macro_rules! mac2 {
($e1:expr, $e2:expr) => {
let $e1..$e2;
let $e1...$e2;
//~^ ERROR `...` range patterns are deprecated
//~| WARN this is accepted in the current edition
let $e1..=$e2;
}
}
mac2!(0, 1);
macro_rules! mac {
($e:expr) => {
let ..$e;
let ...$e;
//~^ ERROR range-to patterns with `...` are not allowed
let ..=$e;
let $e..;
let $e...; //~ ERROR inclusive range with no end
let $e..=; //~ ERROR inclusive range with no end
}
}
mac!(0);
}
|
