diff options
Diffstat (limited to 'src/test/ui/half-open-range-patterns')
38 files changed, 2218 insertions, 0 deletions
diff --git a/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision.rs b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision.rs new file mode 100644 index 000000000..3f4c17836 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision.rs @@ -0,0 +1,10 @@ +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] + +fn main() { + match [5..4, 99..105, 43..44] { + [_, 99.., _] => {}, + //~^ ERROR mismatched types + _ => {}, + } +} diff --git a/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision.stderr b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision.stderr new file mode 100644 index 000000000..a6f8563a0 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision.stderr @@ -0,0 +1,14 @@ +error[E0308]: mismatched types + --> $DIR/exclusive_range_pattern_syntax_collision.rs:6:13 + | +LL | match [5..4, 99..105, 43..44] { + | ----------------------- this expression has type `[std::ops::Range<{integer}>; 3]` +LL | [_, 99.., _] => {}, + | ^^ expected struct `std::ops::Range`, found integer + | + = note: expected struct `std::ops::Range<{integer}>` + found type `{integer}` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision2.rs b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision2.rs new file mode 100644 index 000000000..dedc85491 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision2.rs @@ -0,0 +1,11 @@ +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] + +fn main() { + match [5..4, 99..105, 43..44] { + [_, 99..] => {}, + //~^ ERROR pattern requires 2 elements but array has 3 + //~| ERROR mismatched types + _ => {}, + } +} diff --git a/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision2.stderr b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision2.stderr new file mode 100644 index 000000000..4e0102c93 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision2.stderr @@ -0,0 +1,21 @@ +error[E0527]: pattern requires 2 elements but array has 3 + --> $DIR/exclusive_range_pattern_syntax_collision2.rs:6:9 + | +LL | [_, 99..] => {}, + | ^^^^^^^^^ expected 3 elements + +error[E0308]: mismatched types + --> $DIR/exclusive_range_pattern_syntax_collision2.rs:6:13 + | +LL | match [5..4, 99..105, 43..44] { + | ----------------------- this expression has type `[std::ops::Range<{integer}>; 3]` +LL | [_, 99..] => {}, + | ^^ expected struct `std::ops::Range`, found integer + | + = note: expected struct `std::ops::Range<{integer}>` + found type `{integer}` + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0308, E0527. +For more information about an error, try `rustc --explain E0308`. diff --git a/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision3.rs b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision3.rs new file mode 100644 index 000000000..6a9b562cc --- /dev/null +++ b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision3.rs @@ -0,0 +1,12 @@ +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] + +fn main() { + match [5..4, 99..105, 43..44] { + [..9, 99..100, _] => {}, + //~^ ERROR mismatched types + //~| ERROR mismatched types + //~| ERROR mismatched types + _ => {}, + } +} diff --git a/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision3.stderr b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision3.stderr new file mode 100644 index 000000000..665eef2fc --- /dev/null +++ b/src/test/ui/half-open-range-patterns/exclusive_range_pattern_syntax_collision3.stderr @@ -0,0 +1,40 @@ +error[E0308]: mismatched types + --> $DIR/exclusive_range_pattern_syntax_collision3.rs:6:12 + | +LL | match [5..4, 99..105, 43..44] { + | ----------------------- this expression has type `[std::ops::Range<{integer}>; 3]` +LL | [..9, 99..100, _] => {}, + | ^ expected struct `std::ops::Range`, found integer + | + = note: expected struct `std::ops::Range<{integer}>` + found type `{integer}` + +error[E0308]: mismatched types + --> $DIR/exclusive_range_pattern_syntax_collision3.rs:6:15 + | +LL | match [5..4, 99..105, 43..44] { + | ----------------------- this expression has type `[std::ops::Range<{integer}>; 3]` +LL | [..9, 99..100, _] => {}, + | ^^ --- this is of type `{integer}` + | | + | expected struct `std::ops::Range`, found integer + | + = note: expected struct `std::ops::Range<{integer}>` + found type `{integer}` + +error[E0308]: mismatched types + --> $DIR/exclusive_range_pattern_syntax_collision3.rs:6:19 + | +LL | match [5..4, 99..105, 43..44] { + | ----------------------- this expression has type `[std::ops::Range<{integer}>; 3]` +LL | [..9, 99..100, _] => {}, + | -- ^^^ expected struct `std::ops::Range`, found integer + | | + | this is of type `{integer}` + | + = note: expected struct `std::ops::Range<{integer}>` + found type `{integer}` + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/half-open-range-patterns/feature-gate-half-open-range-patterns.rs b/src/test/ui/half-open-range-patterns/feature-gate-half-open-range-patterns.rs new file mode 100644 index 000000000..9281dda67 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/feature-gate-half-open-range-patterns.rs @@ -0,0 +1,18 @@ +#![feature(exclusive_range_pattern)] + +fn main() {} + +#[cfg(FALSE)] +fn foo() { + if let ..=5 = 0 {} + //~^ ERROR half-open range patterns are unstable + if let ...5 = 0 {} + //~^ ERROR half-open range patterns are unstable + //~| ERROR range-to patterns with `...` are not allowed + if let ..5 = 0 {} + //~^ ERROR half-open range patterns are unstable + if let 5..= = 0 {} + //~^ ERROR inclusive range with no end + if let 5... = 0 {} + //~^ ERROR inclusive range with no end +} diff --git a/src/test/ui/half-open-range-patterns/feature-gate-half-open-range-patterns.stderr b/src/test/ui/half-open-range-patterns/feature-gate-half-open-range-patterns.stderr new file mode 100644 index 000000000..a04883ae1 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/feature-gate-half-open-range-patterns.stderr @@ -0,0 +1,53 @@ +error: range-to patterns with `...` are not allowed + --> $DIR/feature-gate-half-open-range-patterns.rs:9:12 + | +LL | if let ...5 = 0 {} + | ^^^ help: use `..=` instead + +error[E0586]: inclusive range with no end + --> $DIR/feature-gate-half-open-range-patterns.rs:14:13 + | +LL | if let 5..= = 0 {} + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error[E0586]: inclusive range with no end + --> $DIR/feature-gate-half-open-range-patterns.rs:16:13 + | +LL | if let 5... = 0 {} + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error[E0658]: half-open range patterns are unstable + --> $DIR/feature-gate-half-open-range-patterns.rs:7:12 + | +LL | if let ..=5 = 0 {} + | ^^^^ + | + = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information + = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable + +error[E0658]: half-open range patterns are unstable + --> $DIR/feature-gate-half-open-range-patterns.rs:9:12 + | +LL | if let ...5 = 0 {} + | ^^^^ + | + = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information + = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable + +error[E0658]: half-open range patterns are unstable + --> $DIR/feature-gate-half-open-range-patterns.rs:12:12 + | +LL | if let ..5 = 0 {} + | ^^^ + | + = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information + = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable + +error: aborting due to 6 previous errors + +Some errors have detailed explanations: E0586, E0658. +For more information about an error, try `rustc --explain E0586`. diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-bad-types.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-bad-types.rs new file mode 100644 index 000000000..b08732219 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-bad-types.rs @@ -0,0 +1,8 @@ +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] + +fn main() { + let "a".. = "a"; //~ ERROR only `char` and numeric types are allowed in range patterns + let .."a" = "a"; //~ ERROR only `char` and numeric types are allowed in range patterns + let ..="a" = "a"; //~ ERROR only `char` and numeric types are allowed in range patterns +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-bad-types.stderr b/src/test/ui/half-open-range-patterns/half-open-range-pats-bad-types.stderr new file mode 100644 index 000000000..df0dae569 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-bad-types.stderr @@ -0,0 +1,21 @@ +error[E0029]: only `char` and numeric types are allowed in range patterns + --> $DIR/half-open-range-pats-bad-types.rs:5:9 + | +LL | let "a".. = "a"; + | ^^^ this is of type `&'static str` but it should be `char` or numeric + +error[E0029]: only `char` and numeric types are allowed in range patterns + --> $DIR/half-open-range-pats-bad-types.rs:6:11 + | +LL | let .."a" = "a"; + | ^^^ this is of type `&'static str` but it should be `char` or numeric + +error[E0029]: only `char` and numeric types are allowed in range patterns + --> $DIR/half-open-range-pats-bad-types.rs:7:12 + | +LL | let ..="a" = "a"; + | ^^^ this is of type `&'static str` but it should be `char` or numeric + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0029`. diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-fail.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-fail.rs new file mode 100644 index 000000000..be225359b --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-fail.rs @@ -0,0 +1,168 @@ +// Test various non-exhaustive matches for `X..`, `..=X` and `..X` ranges. + +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] +#![allow(illegal_floating_point_literal_pattern)] + +fn main() {} + +macro_rules! m { + ($s:expr, $($t:tt)+) => { + match $s { $($t)+ => {} } + } +} + +fn floats() { + m!(0f32, f32::NEG_INFINITY..); //~ ERROR non-exhaustive patterns: `_` not covered + m!(0f32, ..f32::INFINITY); //~ ERROR non-exhaustive patterns: `_` not covered +} + +fn khar() { + const ALMOST_MAX: char = '\u{10fffe}'; + const ALMOST_MIN: char = '\u{1}'; + const VAL: char = 'a'; + const VAL_1: char = 'b'; + const VAL_2: char = 'c'; + m!('a', ..core::char::MAX); //~ ERROR non-exhaustive patterns + m!('a', ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!('a', ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!('a', ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!('a', ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!('a', ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns +} + +mod unsigned { + fn u8() { + const ALMOST_MAX: u8 = u8::MAX - 1; + const ALMOST_MIN: u8 = u8::MIN + 1; + const VAL: u8 = 42; + const VAL_1: u8 = VAL + 1; + const VAL_2: u8 = VAL + 2; + m!(0, ..u8::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } + fn u16() { + const ALMOST_MAX: u16 = u16::MAX - 1; + const ALMOST_MIN: u16 = u16::MIN + 1; + const VAL: u16 = 42; + const VAL_1: u16 = VAL + 1; + const VAL_2: u16 = VAL + 2; + m!(0, ..u16::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } + fn u32() { + const ALMOST_MAX: u32 = u32::MAX - 1; + const ALMOST_MIN: u32 = u32::MIN + 1; + const VAL: u32 = 42; + const VAL_1: u32 = VAL + 1; + const VAL_2: u32 = VAL + 2; + m!(0, ..u32::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } + fn u64() { + const ALMOST_MAX: u64 = u64::MAX - 1; + const ALMOST_MIN: u64 = u64::MIN + 1; + const VAL: u64 = 42; + const VAL_1: u64 = VAL + 1; + const VAL_2: u64 = VAL + 2; + m!(0, ..u64::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } + fn u128() { + const ALMOST_MAX: u128 = u128::MAX - 1; + const ALMOST_MIN: u128 = u128::MIN + 1; + const VAL: u128 = 42; + const VAL_1: u128 = VAL + 1; + const VAL_2: u128 = VAL + 2; + m!(0, ..u128::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } +} + +mod signed { + fn i8() { + const ALMOST_MAX: i8 = i8::MAX - 1; + const ALMOST_MIN: i8 = i8::MIN + 1; + const VAL: i8 = 42; + const VAL_1: i8 = VAL + 1; + const VAL_2: i8 = VAL + 2; + m!(0, ..i8::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } + fn i16() { + const ALMOST_MAX: i16 = i16::MAX - 1; + const ALMOST_MIN: i16 = i16::MIN + 1; + const VAL: i16 = 42; + const VAL_1: i16 = VAL + 1; + const VAL_2: i16 = VAL + 2; + m!(0, ..i16::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } + fn i32() { + const ALMOST_MAX: i32 = i32::MAX - 1; + const ALMOST_MIN: i32 = i32::MIN + 1; + const VAL: i32 = 42; + const VAL_1: i32 = VAL + 1; + const VAL_2: i32 = VAL + 2; + m!(0, ..i32::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } + fn i64() { + const ALMOST_MAX: i64 = i64::MAX - 1; + const ALMOST_MIN: i64 = i64::MIN + 1; + const VAL: i64 = 42; + const VAL_1: i64 = VAL + 1; + const VAL_2: i64 = VAL + 2; + m!(0, ..i64::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } + fn i128() { + const ALMOST_MAX: i128 = i128::MAX - 1; + const ALMOST_MIN: i128 = i128::MIN + 1; + const VAL: i128 = 42; + const VAL_1: i128 = VAL + 1; + const VAL_2: i128 = VAL + 2; + m!(0, ..i128::MAX); //~ ERROR non-exhaustive patterns + m!(0, ..ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ALMOST_MIN..); //~ ERROR non-exhaustive patterns + m!(0, ..=ALMOST_MAX); //~ ERROR non-exhaustive patterns + m!(0, ..=VAL | VAL_2..); //~ ERROR non-exhaustive patterns + m!(0, ..VAL_1 | VAL_2..); //~ ERROR non-exhaustive patterns + } +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-fail.stderr b/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-fail.stderr new file mode 100644 index 000000000..d429b4e8e --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-fail.stderr @@ -0,0 +1,819 @@ +error[E0004]: non-exhaustive patterns: `_` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:16:8 + | +LL | m!(0f32, f32::NEG_INFINITY..); + | ^^^^ pattern `_` not covered + | + = note: the matched value is of type `f32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, _ => todo!() } + | ++++++++++++++ + +error[E0004]: non-exhaustive patterns: `_` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:17:8 + | +LL | m!(0f32, ..f32::INFINITY); + | ^^^^ pattern `_` not covered + | + = note: the matched value is of type `f32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, _ => todo!() } + | ++++++++++++++ + +error[E0004]: non-exhaustive patterns: `'\u{10ffff}'` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:26:8 + | +LL | m!('a', ..core::char::MAX); + | ^^^ pattern `'\u{10ffff}'` not covered + | + = note: the matched value is of type `char` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, '\u{10ffff}' => todo!() } + | +++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `'\u{10fffe}'..='\u{10ffff}'` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:27:8 + | +LL | m!('a', ..ALMOST_MAX); + | ^^^ pattern `'\u{10fffe}'..='\u{10ffff}'` not covered + | + = note: the matched value is of type `char` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, '\u{10fffe}'..='\u{10ffff}' => todo!() } + | ++++++++++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `'\0'` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:28:8 + | +LL | m!('a', ALMOST_MIN..); + | ^^^ pattern `'\0'` not covered + | + = note: the matched value is of type `char` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, '\0' => todo!() } + | +++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `'\u{10ffff}'` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:29:8 + | +LL | m!('a', ..=ALMOST_MAX); + | ^^^ pattern `'\u{10ffff}'` not covered + | + = note: the matched value is of type `char` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, '\u{10ffff}' => todo!() } + | +++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `'b'` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:30:8 + | +LL | m!('a', ..=VAL | VAL_2..); + | ^^^ pattern `'b'` not covered + | + = note: the matched value is of type `char` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 'b' => todo!() } + | ++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `'b'` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:31:8 + | +LL | m!('a', ..VAL_1 | VAL_2..); + | ^^^ pattern `'b'` not covered + | + = note: the matched value is of type `char` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 'b' => todo!() } + | ++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u8::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:41:12 + | +LL | m!(0, ..u8::MAX); + | ^ pattern `u8::MAX` not covered + | + = note: the matched value is of type `u8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u8::MAX => todo!() } + | ++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `254_u8..=u8::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:42:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `254_u8..=u8::MAX` not covered + | + = note: the matched value is of type `u8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 254_u8..=u8::MAX => todo!() } + | +++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `0_u8` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:43:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `0_u8` not covered + | + = note: the matched value is of type `u8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 0_u8 => todo!() } + | +++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u8::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:44:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `u8::MAX` not covered + | + = note: the matched value is of type `u8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u8::MAX => todo!() } + | ++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u8` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:45:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_u8` not covered + | + = note: the matched value is of type `u8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u8 => todo!() } + | ++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u8` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:46:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_u8` not covered + | + = note: the matched value is of type `u8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u8 => todo!() } + | ++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u16::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:54:12 + | +LL | m!(0, ..u16::MAX); + | ^ pattern `u16::MAX` not covered + | + = note: the matched value is of type `u16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u16::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `65534_u16..=u16::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:55:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `65534_u16..=u16::MAX` not covered + | + = note: the matched value is of type `u16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 65534_u16..=u16::MAX => todo!() } + | +++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `0_u16` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:56:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `0_u16` not covered + | + = note: the matched value is of type `u16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 0_u16 => todo!() } + | ++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u16::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:57:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `u16::MAX` not covered + | + = note: the matched value is of type `u16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u16::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u16` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:58:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_u16` not covered + | + = note: the matched value is of type `u16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u16 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u16` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:59:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_u16` not covered + | + = note: the matched value is of type `u16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u16 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u32::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:67:12 + | +LL | m!(0, ..u32::MAX); + | ^ pattern `u32::MAX` not covered + | + = note: the matched value is of type `u32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u32::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `4294967294_u32..=u32::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:68:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `4294967294_u32..=u32::MAX` not covered + | + = note: the matched value is of type `u32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 4294967294_u32..=u32::MAX => todo!() } + | ++++++++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `0_u32` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:69:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `0_u32` not covered + | + = note: the matched value is of type `u32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 0_u32 => todo!() } + | ++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u32::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:70:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `u32::MAX` not covered + | + = note: the matched value is of type `u32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u32::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u32` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:71:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_u32` not covered + | + = note: the matched value is of type `u32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u32 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u32` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:72:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_u32` not covered + | + = note: the matched value is of type `u32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u32 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u64::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:80:12 + | +LL | m!(0, ..u64::MAX); + | ^ pattern `u64::MAX` not covered + | + = note: the matched value is of type `u64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u64::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `18446744073709551614_u64..=u64::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:81:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `18446744073709551614_u64..=u64::MAX` not covered + | + = note: the matched value is of type `u64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 18446744073709551614_u64..=u64::MAX => todo!() } + | ++++++++++++++++++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `0_u64` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:82:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `0_u64` not covered + | + = note: the matched value is of type `u64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 0_u64 => todo!() } + | ++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u64::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:83:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `u64::MAX` not covered + | + = note: the matched value is of type `u64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u64::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u64` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:84:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_u64` not covered + | + = note: the matched value is of type `u64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u64 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u64` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:85:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_u64` not covered + | + = note: the matched value is of type `u64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u64 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u128::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:93:12 + | +LL | m!(0, ..u128::MAX); + | ^ pattern `u128::MAX` not covered + | + = note: the matched value is of type `u128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u128::MAX => todo!() } + | ++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `340282366920938463463374607431768211454_u128..=u128::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:94:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `340282366920938463463374607431768211454_u128..=u128::MAX` not covered + | + = note: the matched value is of type `u128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 340282366920938463463374607431768211454_u128..=u128::MAX => todo!() } + | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `0_u128` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:95:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `0_u128` not covered + | + = note: the matched value is of type `u128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 0_u128 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `u128::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:96:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `u128::MAX` not covered + | + = note: the matched value is of type `u128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, u128::MAX => todo!() } + | ++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u128` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:97:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_u128` not covered + | + = note: the matched value is of type `u128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u128 => todo!() } + | ++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_u128` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:98:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_u128` not covered + | + = note: the matched value is of type `u128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_u128 => todo!() } + | ++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i8::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:109:12 + | +LL | m!(0, ..i8::MAX); + | ^ pattern `i8::MAX` not covered + | + = note: the matched value is of type `i8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i8::MAX => todo!() } + | ++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `126_i8..=i8::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:110:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `126_i8..=i8::MAX` not covered + | + = note: the matched value is of type `i8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 126_i8..=i8::MAX => todo!() } + | +++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i8::MIN` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:111:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `i8::MIN` not covered + | + = note: the matched value is of type `i8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i8::MIN => todo!() } + | ++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i8::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:112:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `i8::MAX` not covered + | + = note: the matched value is of type `i8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i8::MAX => todo!() } + | ++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i8` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:113:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_i8` not covered + | + = note: the matched value is of type `i8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i8 => todo!() } + | ++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i8` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:114:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_i8` not covered + | + = note: the matched value is of type `i8` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i8 => todo!() } + | ++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i16::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:122:12 + | +LL | m!(0, ..i16::MAX); + | ^ pattern `i16::MAX` not covered + | + = note: the matched value is of type `i16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i16::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `32766_i16..=i16::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:123:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `32766_i16..=i16::MAX` not covered + | + = note: the matched value is of type `i16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 32766_i16..=i16::MAX => todo!() } + | +++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i16::MIN` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:124:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `i16::MIN` not covered + | + = note: the matched value is of type `i16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i16::MIN => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i16::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:125:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `i16::MAX` not covered + | + = note: the matched value is of type `i16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i16::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i16` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:126:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_i16` not covered + | + = note: the matched value is of type `i16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i16 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i16` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:127:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_i16` not covered + | + = note: the matched value is of type `i16` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i16 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i32::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:135:12 + | +LL | m!(0, ..i32::MAX); + | ^ pattern `i32::MAX` not covered + | + = note: the matched value is of type `i32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i32::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `2147483646_i32..=i32::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:136:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `2147483646_i32..=i32::MAX` not covered + | + = note: the matched value is of type `i32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 2147483646_i32..=i32::MAX => todo!() } + | ++++++++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i32::MIN` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:137:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `i32::MIN` not covered + | + = note: the matched value is of type `i32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i32::MIN => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i32::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:138:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `i32::MAX` not covered + | + = note: the matched value is of type `i32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i32::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i32` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:139:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_i32` not covered + | + = note: the matched value is of type `i32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i32 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i32` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:140:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_i32` not covered + | + = note: the matched value is of type `i32` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i32 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i64::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:148:12 + | +LL | m!(0, ..i64::MAX); + | ^ pattern `i64::MAX` not covered + | + = note: the matched value is of type `i64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i64::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `9223372036854775806_i64..=i64::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:149:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `9223372036854775806_i64..=i64::MAX` not covered + | + = note: the matched value is of type `i64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 9223372036854775806_i64..=i64::MAX => todo!() } + | +++++++++++++++++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i64::MIN` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:150:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `i64::MIN` not covered + | + = note: the matched value is of type `i64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i64::MIN => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i64::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:151:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `i64::MAX` not covered + | + = note: the matched value is of type `i64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i64::MAX => todo!() } + | +++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i64` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:152:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_i64` not covered + | + = note: the matched value is of type `i64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i64 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i64` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:153:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_i64` not covered + | + = note: the matched value is of type `i64` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i64 => todo!() } + | +++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i128::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:161:12 + | +LL | m!(0, ..i128::MAX); + | ^ pattern `i128::MAX` not covered + | + = note: the matched value is of type `i128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i128::MAX => todo!() } + | ++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `170141183460469231731687303715884105726_i128..=i128::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:162:12 + | +LL | m!(0, ..ALMOST_MAX); + | ^ pattern `170141183460469231731687303715884105726_i128..=i128::MAX` not covered + | + = note: the matched value is of type `i128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 170141183460469231731687303715884105726_i128..=i128::MAX => todo!() } + | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i128::MIN` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:163:12 + | +LL | m!(0, ALMOST_MIN..); + | ^ pattern `i128::MIN` not covered + | + = note: the matched value is of type `i128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i128::MIN => todo!() } + | ++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `i128::MAX` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:164:12 + | +LL | m!(0, ..=ALMOST_MAX); + | ^ pattern `i128::MAX` not covered + | + = note: the matched value is of type `i128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, i128::MAX => todo!() } + | ++++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i128` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:165:12 + | +LL | m!(0, ..=VAL | VAL_2..); + | ^ pattern `43_i128` not covered + | + = note: the matched value is of type `i128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i128 => todo!() } + | ++++++++++++++++++++ + +error[E0004]: non-exhaustive patterns: `43_i128` not covered + --> $DIR/half-open-range-pats-exhaustive-fail.rs:166:12 + | +LL | m!(0, ..VAL_1 | VAL_2..); + | ^ pattern `43_i128` not covered + | + = note: the matched value is of type `i128` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL | match $s { $($t)+ => {}, 43_i128 => todo!() } + | ++++++++++++++++++++ + +error: aborting due to 68 previous errors + +For more information about this error, try `rustc --explain E0004`. diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-pass.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-pass.rs new file mode 100644 index 000000000..d3a59e4df --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-exhaustive-pass.rs @@ -0,0 +1,49 @@ +// check-pass + +// Test various exhaustive matches for `X..`, `..=X` and `..X` ranges. + +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] + +fn main() {} + +macro_rules! m { + ($s:expr, $($t:tt)+) => { + match $s { $($t)+ => {} } + } +} + +macro_rules! test_int { + ($s:expr, $min:path, $max:path) => { + m!($s, $min..); + m!($s, $min..5 | 5..); + m!($s, ..5 | 5..); + m!($s, ..=4 | 5..); + m!($s, ..=$max); + m!($s, ..$max | $max); + m!(($s, true), (..5, true) | (5.., true) | ($min.., false)); + } +} + +fn unsigned_int() { + test_int!(0u8, u8::MIN, u8::MAX); + test_int!(0u16, u16::MIN, u16::MAX); + test_int!(0u32, u32::MIN, u32::MAX); + test_int!(0u64, u64::MIN, u64::MAX); + test_int!(0u128, u128::MIN, u128::MAX); +} + +fn signed_int() { + test_int!(0i8, i8::MIN, i8::MAX); + test_int!(0i16, i16::MIN, i16::MAX); + test_int!(0i32, i32::MIN, i32::MAX); + test_int!(0i64, i64::MIN, i64::MAX); + test_int!(0i128, i128::MIN, i128::MAX); +} + +fn khar() { + m!('a', ..=core::char::MAX); + m!('a', '\u{0}'..); + m!('a', ..='\u{D7FF}' | '\u{E000}'..); + m!('a', ..'\u{D7FF}' | '\u{D7FF}' | '\u{E000}'..); +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-dotdotdot-bad-syntax.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-dotdotdot-bad-syntax.rs new file mode 100644 index 000000000..daed775cf --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-dotdotdot-bad-syntax.rs @@ -0,0 +1,32 @@ +// Test that `...X` range-to patterns are syntactically invalid. +// +// See https://github.com/rust-lang/rust/pull/67258#issuecomment-565656155 +// for the reason why. To summarize, we might want to introduce `...expr` as +// an expression form for splatting (or "untupling") in an expression context. +// While there is no syntactic ambiguity with `...X` in a pattern context, +// there's a potential confusion factor here, and we would prefer to keep patterns +// and expressions in-sync. As such, we do not allow `...X` in patterns either. + +#![feature(half_open_range_patterns)] + +fn main() {} + +#[cfg(FALSE)] +fn syntax() { + match scrutinee { + ...X => {} //~ ERROR range-to patterns with `...` are not allowed + ...0 => {} //~ ERROR range-to patterns with `...` are not allowed + ...'a' => {} //~ ERROR range-to patterns with `...` are not allowed + ...0.0f32 => {} //~ ERROR range-to patterns with `...` are not allowed + } +} + +fn syntax2() { + macro_rules! mac { + ($e:expr) => { + let ...$e; //~ ERROR range-to patterns with `...` are not allowed + } + } + + mac!(0); +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-dotdotdot-bad-syntax.stderr b/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-dotdotdot-bad-syntax.stderr new file mode 100644 index 000000000..da37ff301 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-dotdotdot-bad-syntax.stderr @@ -0,0 +1,37 @@ +error: range-to patterns with `...` are not allowed + --> $DIR/half-open-range-pats-inclusive-dotdotdot-bad-syntax.rs:17:9 + | +LL | ...X => {} + | ^^^ help: use `..=` instead + +error: range-to patterns with `...` are not allowed + --> $DIR/half-open-range-pats-inclusive-dotdotdot-bad-syntax.rs:18:9 + | +LL | ...0 => {} + | ^^^ help: use `..=` instead + +error: range-to patterns with `...` are not allowed + --> $DIR/half-open-range-pats-inclusive-dotdotdot-bad-syntax.rs:19:9 + | +LL | ...'a' => {} + | ^^^ help: use `..=` instead + +error: range-to patterns with `...` are not allowed + --> $DIR/half-open-range-pats-inclusive-dotdotdot-bad-syntax.rs:20:9 + | +LL | ...0.0f32 => {} + | ^^^ help: use `..=` instead + +error: range-to patterns with `...` are not allowed + --> $DIR/half-open-range-pats-inclusive-dotdotdot-bad-syntax.rs:27:17 + | +LL | let ...$e; + | ^^^ help: use `..=` instead +... +LL | mac!(0); + | ------- in this macro invocation + | + = note: this error originates in the macro `mac` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 5 previous errors + diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-no-end.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-no-end.rs new file mode 100644 index 000000000..9ace0c357 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-no-end.rs @@ -0,0 +1,26 @@ +// Test `X...` and `X..=` range patterns not being allowed syntactically. +// FIXME(Centril): perhaps these should be semantic restrictions. + +#![feature(half_open_range_patterns)] + +fn main() {} + +#[cfg(FALSE)] +fn foo() { + if let 0... = 1 {} //~ ERROR inclusive range with no end + if let 0..= = 1 {} //~ ERROR inclusive range with no end + const X: u8 = 0; + if let X... = 1 {} //~ ERROR inclusive range with no end + if let X..= = 1 {} //~ ERROR inclusive range with no end +} + +fn bar() { + macro_rules! mac { + ($e:expr) => { + let $e...; //~ ERROR inclusive range with no end + let $e..=; //~ ERROR inclusive range with no end + } + } + + mac!(0); +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-no-end.stderr b/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-no-end.stderr new file mode 100644 index 000000000..5a504a90b --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-inclusive-no-end.stderr @@ -0,0 +1,59 @@ +error[E0586]: inclusive range with no end + --> $DIR/half-open-range-pats-inclusive-no-end.rs:10:13 + | +LL | if let 0... = 1 {} + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error[E0586]: inclusive range with no end + --> $DIR/half-open-range-pats-inclusive-no-end.rs:11:13 + | +LL | if let 0..= = 1 {} + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error[E0586]: inclusive range with no end + --> $DIR/half-open-range-pats-inclusive-no-end.rs:13:13 + | +LL | if let X... = 1 {} + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error[E0586]: inclusive range with no end + --> $DIR/half-open-range-pats-inclusive-no-end.rs:14:13 + | +LL | if let X..= = 1 {} + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error[E0586]: inclusive range with no end + --> $DIR/half-open-range-pats-inclusive-no-end.rs:20:19 + | +LL | let $e...; + | ^^^ help: use `..` instead +... +LL | mac!(0); + | ------- in this macro invocation + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + = note: this error originates in the macro `mac` (in Nightly builds, run with -Z macro-backtrace for more info) + +error[E0586]: inclusive range with no end + --> $DIR/half-open-range-pats-inclusive-no-end.rs:21:19 + | +LL | let $e..=; + | ^^^ help: use `..` instead +... +LL | mac!(0); + | ------- in this macro invocation + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + = note: this error originates in the macro `mac` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 6 previous errors + +For more information about this error, try `rustc --explain E0586`. diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-ref-ambiguous-interp.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-ref-ambiguous-interp.rs new file mode 100644 index 000000000..f054bbea4 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-ref-ambiguous-interp.rs @@ -0,0 +1,26 @@ +#![feature(half_open_range_patterns)] + +fn main() {} + +#[cfg(FALSE)] +fn syntax() { + match &0 { + &0.. | _ => {} + //~^ ERROR the range pattern here has ambiguous interpretation + &0..= | _ => {} + //~^ ERROR the range pattern here has ambiguous interpretation + //~| ERROR inclusive range with no end + &0... | _ => {} + //~^ ERROR inclusive range with no end + } + + match &0 { + &..0 | _ => {} + //~^ ERROR the range pattern here has ambiguous interpretation + &..=0 | _ => {} + //~^ ERROR the range pattern here has ambiguous interpretation + &...0 | _ => {} + //~^ ERROR the range pattern here has ambiguous interpretation + //~| ERROR range-to patterns with `...` are not allowed + } +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-ref-ambiguous-interp.stderr b/src/test/ui/half-open-range-patterns/half-open-range-pats-ref-ambiguous-interp.stderr new file mode 100644 index 000000000..93b73c57e --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-ref-ambiguous-interp.stderr @@ -0,0 +1,55 @@ +error: the range pattern here has ambiguous interpretation + --> $DIR/half-open-range-pats-ref-ambiguous-interp.rs:8:10 + | +LL | &0.. | _ => {} + | ^^^ help: add parentheses to clarify the precedence: `(0..)` + +error[E0586]: inclusive range with no end + --> $DIR/half-open-range-pats-ref-ambiguous-interp.rs:10:11 + | +LL | &0..= | _ => {} + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error: the range pattern here has ambiguous interpretation + --> $DIR/half-open-range-pats-ref-ambiguous-interp.rs:10:10 + | +LL | &0..= | _ => {} + | ^^^^ help: add parentheses to clarify the precedence: `(0..=)` + +error[E0586]: inclusive range with no end + --> $DIR/half-open-range-pats-ref-ambiguous-interp.rs:13:11 + | +LL | &0... | _ => {} + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error: the range pattern here has ambiguous interpretation + --> $DIR/half-open-range-pats-ref-ambiguous-interp.rs:18:10 + | +LL | &..0 | _ => {} + | ^^^ help: add parentheses to clarify the precedence: `(..0)` + +error: the range pattern here has ambiguous interpretation + --> $DIR/half-open-range-pats-ref-ambiguous-interp.rs:20:10 + | +LL | &..=0 | _ => {} + | ^^^^ help: add parentheses to clarify the precedence: `(..=0)` + +error: range-to patterns with `...` are not allowed + --> $DIR/half-open-range-pats-ref-ambiguous-interp.rs:22:10 + | +LL | &...0 | _ => {} + | ^^^ help: use `..=` instead + +error: the range pattern here has ambiguous interpretation + --> $DIR/half-open-range-pats-ref-ambiguous-interp.rs:22:10 + | +LL | &...0 | _ => {} + | ^^^^ help: add parentheses to clarify the precedence: `(..=0)` + +error: aborting due to 8 previous errors + +For more information about this error, try `rustc --explain E0586`. diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-semantics.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-semantics.rs new file mode 100644 index 000000000..ae532d935 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-semantics.rs @@ -0,0 +1,160 @@ +// run-pass + +// Test half-open range patterns against their expression equivalents +// via `.contains(...)` and make sure the dynamic semantics match. + +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] +#![allow(illegal_floating_point_literal_pattern)] +#![allow(unreachable_patterns)] + +macro_rules! yes { + ($scrutinee:expr, $($t:tt)+) => { + { + let m = match $scrutinee { $($t)+ => true, _ => false, }; + let c = ($($t)+).contains(&$scrutinee); + assert_eq!(m, c); + m + } + } +} + +fn range_to_inclusive() { + // `..=X` (`RangeToInclusive`-equivalent): + //--------------------------------------- + + // u8; `..=X` + assert!(yes!(u8::MIN, ..=u8::MIN)); + assert!(yes!(u8::MIN, ..=5)); + assert!(yes!(5u8, ..=5)); + assert!(!yes!(6u8, ..=5)); + + // i16; `..=X` + assert!(yes!(i16::MIN, ..=i16::MIN)); + assert!(yes!(i16::MIN, ..=0)); + assert!(yes!(i16::MIN, ..=-5)); + assert!(yes!(-5, ..=-5)); + assert!(!yes!(-4, ..=-5)); + + // char; `..=X` + assert!(yes!('\u{0}', ..='\u{0}')); + assert!(yes!('\u{0}', ..='a')); + assert!(yes!('a', ..='a')); + assert!(!yes!('b', ..='a')); + + // f32; `..=X` + assert!(yes!(f32::NEG_INFINITY, ..=f32::NEG_INFINITY)); + assert!(yes!(f32::NEG_INFINITY, ..=1.0f32)); + assert!(yes!(1.5f32, ..=1.5f32)); + assert!(!yes!(1.6f32, ..=-1.5f32)); + + // f64; `..=X` + assert!(yes!(f64::NEG_INFINITY, ..=f64::NEG_INFINITY)); + assert!(yes!(f64::NEG_INFINITY, ..=1.0f64)); + assert!(yes!(1.5f64, ..=1.5f64)); + assert!(!yes!(1.6f64, ..=-1.5f64)); +} + +fn range_to() { + // `..X` (`RangeTo`-equivalent): + //----------------------------- + + // u8; `..X` + assert!(yes!(0u8, ..1)); + assert!(yes!(0u8, ..5)); + assert!(!yes!(5u8, ..5)); + assert!(!yes!(6u8, ..5)); + + // u8; `..X` + const NU8: u8 = u8::MIN + 1; + assert!(yes!(u8::MIN, ..NU8)); + assert!(yes!(0u8, ..5)); + assert!(!yes!(5u8, ..5)); + assert!(!yes!(6u8, ..5)); + + // i16; `..X` + const NI16: i16 = i16::MIN + 1; + assert!(yes!(i16::MIN, ..NI16)); + assert!(yes!(i16::MIN, ..5)); + assert!(yes!(-6, ..-5)); + assert!(!yes!(-5, ..-5)); + + // char; `..X` + assert!(yes!('\u{0}', ..'\u{1}')); + assert!(yes!('\u{0}', ..'a')); + assert!(yes!('a', ..'b')); + assert!(!yes!('a', ..'a')); + assert!(!yes!('b', ..'a')); + + // f32; `..X` + assert!(yes!(f32::NEG_INFINITY, ..1.0f32)); + assert!(!yes!(1.5f32, ..1.5f32)); + const E32: f32 = 1.5f32 + f32::EPSILON; + assert!(yes!(1.5f32, ..E32)); + assert!(!yes!(1.6f32, ..1.5f32)); + + // f64; `..X` + assert!(yes!(f64::NEG_INFINITY, ..1.0f64)); + assert!(!yes!(1.5f64, ..1.5f64)); + const E64: f64 = 1.5f64 + f64::EPSILON; + assert!(yes!(1.5f64, ..E64)); + assert!(!yes!(1.6f64, ..1.5f64)); +} + +fn range_from() { + // `X..` (`RangeFrom`-equivalent): + //-------------------------------- + + // u8; `X..` + assert!(yes!(u8::MIN, u8::MIN..)); + assert!(yes!(u8::MAX, u8::MIN..)); + assert!(!yes!(u8::MIN, 1..)); + assert!(!yes!(4, 5..)); + assert!(yes!(5, 5..)); + assert!(yes!(6, 5..)); + assert!(yes!(u8::MAX, u8::MAX..)); + + // i16; `X..` + assert!(yes!(i16::MIN, i16::MIN..)); + assert!(yes!(i16::MAX, i16::MIN..)); + const NI16: i16 = i16::MIN + 1; + assert!(!yes!(i16::MIN, NI16..)); + assert!(!yes!(-4, 5..)); + assert!(yes!(-4, -4..)); + assert!(yes!(-3, -4..)); + assert!(yes!(i16::MAX, i16::MAX..)); + + // char; `X..` + assert!(yes!('\u{0}', '\u{0}'..)); + assert!(yes!(core::char::MAX, '\u{0}'..)); + assert!(yes!('a', 'a'..)); + assert!(yes!('b', 'a'..)); + assert!(!yes!('a', 'b'..)); + assert!(yes!(core::char::MAX, core::char::MAX..)); + + // f32; `X..` + assert!(yes!(f32::NEG_INFINITY, f32::NEG_INFINITY..)); + assert!(yes!(f32::INFINITY, f32::NEG_INFINITY..)); + assert!(!yes!(f32::NEG_INFINITY, 1.0f32..)); + assert!(yes!(f32::INFINITY, 1.0f32..)); + assert!(!yes!(1.0f32 - f32::EPSILON, 1.0f32..)); + assert!(yes!(1.0f32, 1.0f32..)); + assert!(yes!(f32::INFINITY, 1.0f32..)); + assert!(yes!(f32::INFINITY, f32::INFINITY..)); + + // f64; `X..` + assert!(yes!(f64::NEG_INFINITY, f64::NEG_INFINITY..)); + assert!(yes!(f64::INFINITY, f64::NEG_INFINITY..)); + assert!(!yes!(f64::NEG_INFINITY, 1.0f64..)); + assert!(yes!(f64::INFINITY, 1.0f64..)); + assert!(!yes!(1.0f64 - f64::EPSILON, 1.0f64..)); + assert!(yes!(1.0f64, 1.0f64..)); + assert!(yes!(f64::INFINITY, 1.0f64..)); + assert!(yes!(f64::INFINITY, f64::INFINITY..)); +} + +fn main() { + range_to_inclusive(); + range_to(); + range_from(); +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-syntactic-pass.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-syntactic-pass.rs new file mode 100644 index 000000000..8bb98d3b5 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-syntactic-pass.rs @@ -0,0 +1,30 @@ +// check-pass + +// Test the parsing of half-open ranges. + +#![feature(exclusive_range_pattern)] +#![feature(half_open_range_patterns)] + +fn main() {} + +#[cfg(FALSE)] +fn syntax() { + match scrutinee { + X.. | 0.. | 'a'.. | 0.0f32.. => {} + ..=X | ..X => {} + ..=0 | ..0 => {} + ..='a' | ..'a' => {} + ..=0.0f32 | ..0.0f32 => {} + } +} + +fn syntax2() { + macro_rules! mac { + ($e:expr) => { + match 0u8 { ..$e => {}, _ => {} } + match 0u8 { ..=$e => {}, _ => {} } + match 0u8 { $e.. => {}, _ => {} } + } + } + mac!(42u8); +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-thir-lower-empty.rs b/src/test/ui/half-open-range-patterns/half-open-range-pats-thir-lower-empty.rs new file mode 100644 index 000000000..2c8e554b2 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-thir-lower-empty.rs @@ -0,0 +1,54 @@ +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] +#![allow(illegal_floating_point_literal_pattern)] + +macro_rules! m { + ($s:expr, $($t:tt)+) => { + match $s { $($t)+ => {} } + } +} + +fn main() { + m!(0, ..u8::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0, ..u16::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0, ..u32::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0, ..u64::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0, ..u128::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + + m!(0, ..i8::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0, ..i16::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0, ..i32::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0, ..i64::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0, ..i128::MIN); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + + m!(0f32, ..f32::NEG_INFINITY); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + m!(0f64, ..f64::NEG_INFINITY); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper + + m!('a', ..'\u{0}'); + //~^ ERROR lower range bound must be less than upper + //~| ERROR lower range bound must be less than upper +} diff --git a/src/test/ui/half-open-range-patterns/half-open-range-pats-thir-lower-empty.stderr b/src/test/ui/half-open-range-patterns/half-open-range-pats-thir-lower-empty.stderr new file mode 100644 index 000000000..4931ddfac --- /dev/null +++ b/src/test/ui/half-open-range-patterns/half-open-range-pats-thir-lower-empty.stderr @@ -0,0 +1,159 @@ +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:12:11 + | +LL | m!(0, ..u8::MIN); + | ^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:15:11 + | +LL | m!(0, ..u16::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:18:11 + | +LL | m!(0, ..u32::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:21:11 + | +LL | m!(0, ..u64::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:24:11 + | +LL | m!(0, ..u128::MIN); + | ^^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:28:11 + | +LL | m!(0, ..i8::MIN); + | ^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:31:11 + | +LL | m!(0, ..i16::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:34:11 + | +LL | m!(0, ..i32::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:37:11 + | +LL | m!(0, ..i64::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:40:11 + | +LL | m!(0, ..i128::MIN); + | ^^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:44:14 + | +LL | m!(0f32, ..f32::NEG_INFINITY); + | ^^^^^^^^^^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:47:14 + | +LL | m!(0f64, ..f64::NEG_INFINITY); + | ^^^^^^^^^^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:51:13 + | +LL | m!('a', ..'\u{0}'); + | ^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:12:11 + | +LL | m!(0, ..u8::MIN); + | ^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:15:11 + | +LL | m!(0, ..u16::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:18:11 + | +LL | m!(0, ..u32::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:21:11 + | +LL | m!(0, ..u64::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:24:11 + | +LL | m!(0, ..u128::MIN); + | ^^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:28:11 + | +LL | m!(0, ..i8::MIN); + | ^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:31:11 + | +LL | m!(0, ..i16::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:34:11 + | +LL | m!(0, ..i32::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:37:11 + | +LL | m!(0, ..i64::MIN); + | ^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:40:11 + | +LL | m!(0, ..i128::MIN); + | ^^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:44:14 + | +LL | m!(0f32, ..f32::NEG_INFINITY); + | ^^^^^^^^^^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:47:14 + | +LL | m!(0f64, ..f64::NEG_INFINITY); + | ^^^^^^^^^^^^^^^^^^^ + +error[E0579]: lower range bound must be less than upper + --> $DIR/half-open-range-pats-thir-lower-empty.rs:51:13 + | +LL | m!('a', ..'\u{0}'); + | ^^^^^^^^^ + +error: aborting due to 26 previous errors + +For more information about this error, try `rustc --explain E0579`. diff --git a/src/test/ui/half-open-range-patterns/pat-tuple-4.rs b/src/test/ui/half-open-range-patterns/pat-tuple-4.rs new file mode 100644 index 000000000..bd7953682 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/pat-tuple-4.rs @@ -0,0 +1,13 @@ +// check-pass + +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] + +fn main() { + const PAT: u8 = 1; + + match 0 { + (.. PAT) => {} + _ => {} + } +} diff --git a/src/test/ui/half-open-range-patterns/pat-tuple-5.rs b/src/test/ui/half-open-range-patterns/pat-tuple-5.rs new file mode 100644 index 000000000..613d907cf --- /dev/null +++ b/src/test/ui/half-open-range-patterns/pat-tuple-5.rs @@ -0,0 +1,10 @@ +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] + +fn main() { + const PAT: u8 = 1; + + match (0, 1) { + (PAT ..) => {} //~ ERROR mismatched types + } +} diff --git a/src/test/ui/half-open-range-patterns/pat-tuple-5.stderr b/src/test/ui/half-open-range-patterns/pat-tuple-5.stderr new file mode 100644 index 000000000..307ad711b --- /dev/null +++ b/src/test/ui/half-open-range-patterns/pat-tuple-5.stderr @@ -0,0 +1,14 @@ +error[E0308]: mismatched types + --> $DIR/pat-tuple-5.rs:8:10 + | +LL | match (0, 1) { + | ------ this expression has type `({integer}, {integer})` +LL | (PAT ..) => {} + | ^^^ expected tuple, found `u8` + | + = note: expected tuple `({integer}, {integer})` + found type `u8` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/half-open-range-patterns/range_pat_interactions0.rs b/src/test/ui/half-open-range-patterns/range_pat_interactions0.rs new file mode 100644 index 000000000..8f745e810 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/range_pat_interactions0.rs @@ -0,0 +1,32 @@ +// run-pass +#![allow(incomplete_features)] +#![feature(exclusive_range_pattern)] +#![feature(half_open_range_patterns)] +#![feature(inline_const_pat)] + +fn main() { + let mut if_lettable = vec![]; + let mut first_or = vec![]; + let mut or_two = vec![]; + let mut range_from = vec![]; + let mut bottom = vec![]; + + for x in -9 + 1..=(9 - 2) { + if let -1..=0 | 2..3 | 4 = x { + if_lettable.push(x) + } + match x { + 1 | -3..0 => first_or.push(x), + y @ (0..5 | 6) => or_two.push(y), + y @ 0..const { 5 + 1 } => assert_eq!(y, 5), + y @ -5.. => range_from.push(y), + y @ ..-7 => assert_eq!(y, -8), + y => bottom.push(y), + } + } + assert_eq!(if_lettable, [-1, 0, 2, 4]); + assert_eq!(first_or, [-3, -2, -1, 1]); + assert_eq!(or_two, [0, 2, 3, 4, 6]); + assert_eq!(range_from, [-5, -4, 7]); + assert_eq!(bottom, [-7, -6]); +} diff --git a/src/test/ui/half-open-range-patterns/range_pat_interactions1.rs b/src/test/ui/half-open-range-patterns/range_pat_interactions1.rs new file mode 100644 index 000000000..55353999b --- /dev/null +++ b/src/test/ui/half-open-range-patterns/range_pat_interactions1.rs @@ -0,0 +1,29 @@ +fn main() { + let mut if_lettable = Vec::<i32>::new(); + let mut first_or = Vec::<i32>::new(); + let mut or_two = Vec::<i32>::new(); + let mut range_from = Vec::<i32>::new(); + let mut bottom = Vec::<i32>::new(); + let mut errors_only = Vec::<i32>::new(); + + for x in -9 + 1..=(9 - 2) { + if let n @ 2..3|4 = x { + //~^ error: variable `n` is not bound in all patterns + //~| exclusive range pattern syntax is experimental + errors_only.push(x); + } else if let 2..3 | 4 = x { + //~^ exclusive range pattern syntax is experimental + if_lettable.push(x); + } + match x as i32 { + 0..5+1 => errors_only.push(x), + //~^ error: expected one of `=>`, `if`, or `|`, found `+` + 1 | -3..0 => first_or.push(x), + y @ (0..5 | 6) => or_two.push(y), + y @ 0..const { 5 + 1 } => assert_eq!(y, 5), + y @ -5.. => range_from.push(y), + y @ ..-7 => assert_eq!(y, -8), + y => bottom.push(y), + } + } +} diff --git a/src/test/ui/half-open-range-patterns/range_pat_interactions1.stderr b/src/test/ui/half-open-range-patterns/range_pat_interactions1.stderr new file mode 100644 index 000000000..19ebcaf0f --- /dev/null +++ b/src/test/ui/half-open-range-patterns/range_pat_interactions1.stderr @@ -0,0 +1,36 @@ +error: expected one of `=>`, `if`, or `|`, found `+` + --> $DIR/range_pat_interactions1.rs:19:17 + | +LL | 0..5+1 => errors_only.push(x), + | ^ expected one of `=>`, `if`, or `|` + +error[E0408]: variable `n` is not bound in all patterns + --> $DIR/range_pat_interactions1.rs:10:25 + | +LL | if let n @ 2..3|4 = x { + | - ^ pattern doesn't bind `n` + | | + | variable not in all patterns + +error[E0658]: exclusive range pattern syntax is experimental + --> $DIR/range_pat_interactions1.rs:10:20 + | +LL | if let n @ 2..3|4 = x { + | ^^^^ + | + = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information + = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable + +error[E0658]: exclusive range pattern syntax is experimental + --> $DIR/range_pat_interactions1.rs:14:23 + | +LL | } else if let 2..3 | 4 = x { + | ^^^^ + | + = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information + = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable + +error: aborting due to 4 previous errors + +Some errors have detailed explanations: E0408, E0658. +For more information about an error, try `rustc --explain E0408`. diff --git a/src/test/ui/half-open-range-patterns/range_pat_interactions2.rs b/src/test/ui/half-open-range-patterns/range_pat_interactions2.rs new file mode 100644 index 000000000..4615ebd68 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/range_pat_interactions2.rs @@ -0,0 +1,21 @@ +fn main() { + let mut first_or = Vec::<i32>::new(); + let mut or_two = Vec::<i32>::new(); + let mut range_from = Vec::<i32>::new(); + let mut bottom = Vec::<i32>::new(); + let mut errors_only = Vec::<i32>::new(); + + for x in -9 + 1..=(9 - 2) { + match x as i32 { + 0..=(5+1) => errors_only.push(x), + //~^ error: inclusive range with no end + //~| error: expected one of `=>`, `if`, or `|`, found `(` + 1 | -3..0 => first_or.push(x), + y @ (0..5 | 6) => or_two.push(y), + y @ 0..const { 5 + 1 } => assert_eq!(y, 5), + y @ -5.. => range_from.push(y), + y @ ..-7 => assert_eq!(y, -8), + y => bottom.push(y), + } + } +} diff --git a/src/test/ui/half-open-range-patterns/range_pat_interactions2.stderr b/src/test/ui/half-open-range-patterns/range_pat_interactions2.stderr new file mode 100644 index 000000000..13a5542a4 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/range_pat_interactions2.stderr @@ -0,0 +1,17 @@ +error[E0586]: inclusive range with no end + --> $DIR/range_pat_interactions2.rs:10:14 + | +LL | 0..=(5+1) => errors_only.push(x), + | ^^^ help: use `..` instead + | + = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`) + +error: expected one of `=>`, `if`, or `|`, found `(` + --> $DIR/range_pat_interactions2.rs:10:17 + | +LL | 0..=(5+1) => errors_only.push(x), + | ^ expected one of `=>`, `if`, or `|` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0586`. diff --git a/src/test/ui/half-open-range-patterns/range_pat_interactions3.rs b/src/test/ui/half-open-range-patterns/range_pat_interactions3.rs new file mode 100644 index 000000000..41c7e46df --- /dev/null +++ b/src/test/ui/half-open-range-patterns/range_pat_interactions3.rs @@ -0,0 +1,24 @@ +fn main() { + let mut first_or = Vec::<i32>::new(); + let mut or_two = Vec::<i32>::new(); + let mut range_from = Vec::<i32>::new(); + let mut bottom = Vec::<i32>::new(); + + for x in -9 + 1..=(9 - 2) { + match x as i32 { + 8.. => bottom.push(x), + 1 | -3..0 => first_or.push(x), + //~^ exclusive range pattern syntax is experimental + y @ (0..5 | 6) => or_two.push(y), + //~^ exclusive range pattern syntax is experimental + y @ 0..const { 5 + 1 } => assert_eq!(y, 5), + //~^ inline-const in pattern position is experimental + //~| exclusive range pattern syntax is experimental + y @ -5.. => range_from.push(y), + y @ ..-7 => assert_eq!(y, -8), + //~^ half-open range patterns are unstable + //~| exclusive range pattern syntax is experimental + y => bottom.push(y), + } + } +} diff --git a/src/test/ui/half-open-range-patterns/range_pat_interactions3.stderr b/src/test/ui/half-open-range-patterns/range_pat_interactions3.stderr new file mode 100644 index 000000000..5e36996a4 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/range_pat_interactions3.stderr @@ -0,0 +1,57 @@ +error[E0658]: half-open range patterns are unstable + --> $DIR/range_pat_interactions3.rs:18:17 + | +LL | y @ ..-7 => assert_eq!(y, -8), + | ^^^^ + | + = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information + = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable + +error[E0658]: inline-const in pattern position is experimental + --> $DIR/range_pat_interactions3.rs:14:20 + | +LL | y @ 0..const { 5 + 1 } => assert_eq!(y, 5), + | ^^^^^ + | + = note: see issue #76001 <https://github.com/rust-lang/rust/issues/76001> for more information + = help: add `#![feature(inline_const_pat)]` to the crate attributes to enable + +error[E0658]: exclusive range pattern syntax is experimental + --> $DIR/range_pat_interactions3.rs:10:17 + | +LL | 1 | -3..0 => first_or.push(x), + | ^^^^^ + | + = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information + = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable + +error[E0658]: exclusive range pattern syntax is experimental + --> $DIR/range_pat_interactions3.rs:12:18 + | +LL | y @ (0..5 | 6) => or_two.push(y), + | ^^^^ + | + = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information + = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable + +error[E0658]: exclusive range pattern syntax is experimental + --> $DIR/range_pat_interactions3.rs:14:17 + | +LL | y @ 0..const { 5 + 1 } => assert_eq!(y, 5), + | ^^^^^^^^^^^^^^^^^^ + | + = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information + = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable + +error[E0658]: exclusive range pattern syntax is experimental + --> $DIR/range_pat_interactions3.rs:18:17 + | +LL | y @ ..-7 => assert_eq!(y, -8), + | ^^^^ + | + = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information + = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable + +error: aborting due to 6 previous errors + +For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem0.rs b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem0.rs new file mode 100644 index 000000000..2884a2734 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem0.rs @@ -0,0 +1,16 @@ +#![feature(half_open_range_patterns)] +#![feature(exclusive_range_pattern)] + +fn main() { + let xs = [13, 1, 5, 2, 3, 1, 21, 8]; + let [a, b, c, rest @ ..] = xs; + // Consider the following example: + assert!(a == 13 && b == 1 && c == 5 && rest.len() == 5); + + // What if we wanted to pull this apart without individually binding a, b, and c? + let [first_three @ ..3, rest @ 2..] = xs; + //~^ pattern requires 2 elements but array has 8 + // This is somewhat unintuitive and makes slice patterns exceedingly verbose. + // We want to stabilize half-open RangeFrom (`X..`) patterns + // but without banning us from using them for a more efficient slice pattern syntax. +} diff --git a/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem0.stderr b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem0.stderr new file mode 100644 index 000000000..ec3472a50 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem0.stderr @@ -0,0 +1,9 @@ +error[E0527]: pattern requires 2 elements but array has 8 + --> $DIR/slice_pattern_syntax_problem0.rs:11:9 + | +LL | let [first_three @ ..3, rest @ 2..] = xs; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 8 elements + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0527`. diff --git a/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem1.rs b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem1.rs new file mode 100644 index 000000000..9e289b591 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem1.rs @@ -0,0 +1,9 @@ +// Instead of allowing the previous case, maintain the feature gate for slice patterns for now. +fn main() { + let xs = [13, 1, 5, 2, 3, 1, 21, 8]; + let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs; + //~^ `X..` patterns in slices are experimental + //~| half-open range patterns are unstable + //~| exclusive range pattern syntax is experimental + //~| exclusive range pattern syntax is experimental +} diff --git a/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem1.stderr b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem1.stderr new file mode 100644 index 000000000..eadaf8776 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem1.stderr @@ -0,0 +1,39 @@ +error[E0658]: half-open range patterns are unstable + --> $DIR/slice_pattern_syntax_problem1.rs:4:23 + | +LL | let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs; + | ^^^ + | + = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information + = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable + +error[E0658]: `X..` patterns in slices are experimental + --> $DIR/slice_pattern_syntax_problem1.rs:4:10 + | +LL | let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs; + | ^^^^^^^ + | + = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information + = help: add `#![feature(half_open_range_patterns)]` to the crate attributes to enable + +error[E0658]: exclusive range pattern syntax is experimental + --> $DIR/slice_pattern_syntax_problem1.rs:4:23 + | +LL | let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs; + | ^^^ + | + = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information + = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable + +error[E0658]: exclusive range pattern syntax is experimental + --> $DIR/slice_pattern_syntax_problem1.rs:4:32 + | +LL | let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs; + | ^^^^ + | + = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information + = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem2.rs b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem2.rs new file mode 100644 index 000000000..6e7df3094 --- /dev/null +++ b/src/test/ui/half-open-range-patterns/slice_pattern_syntax_problem2.rs @@ -0,0 +1,10 @@ +// run-pass + +fn main() { + let xs = [13, 1, 5, 2, 3, 1, 21, 8]; + if let [3..=14, ..] = xs { + /* this variant must pass for now, unfortunately. + * This test is included here to help inform a future plan for these. + */ + }; +} |