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Add support for raw addr syntax #390

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Merged
merged 3 commits into from
Nov 1, 2024
Merged

Add support for raw addr syntax #390

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7d1a8f9
Add test of raw addr expression syntax
dtolnay Nov 1, 2024
1e7e9fe
Parse raw address expression syntax
dtolnay Nov 1, 2024
fcf2ef8
Compile &raw test on Rust 1.82+ only
dtolnay Nov 1, 2024
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16 changes: 16 additions & 0 deletions src/ensure.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -155,6 +155,14 @@ macro_rules! __parse_ensure {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $and $mut) $($parse)*} ($($rest)*) $($rest)*)
};

(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $raw:tt $mut:tt $($dup:tt)*) &raw mut $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $and $raw $mut) $($parse)*} ($($rest)*) $($rest)*)
};

(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $raw:tt $const:tt $($dup:tt)*) &raw const $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $and $raw $const) $($parse)*} ($($rest)*) $($rest)*)
};

(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($and:tt $($dup:tt)*) & $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $and) $($parse)*} ($($rest)*) $($rest)*)
};
Expand All @@ -163,6 +171,14 @@ macro_rules! __parse_ensure {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $andand $mut) $($parse)*} ($($rest)*) $($rest)*)
};

(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($andand:tt $raw:tt $mut:tt $($dup:tt)*) &&raw mut $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $andand $raw $mut) $($parse)*} ($($rest)*) $($rest)*)
};

(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($andand:tt $raw:tt $const:tt $($dup:tt)*) &&raw const $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $andand $raw $const) $($parse)*} ($($rest)*) $($rest)*)
};

(0 $stack:tt $bail:tt (~$($fuel:tt)*) {($($buf:tt)*) $($parse:tt)*} ($andand:tt $($dup:tt)*) && $($rest:tt)*) => {
$crate::__parse_ensure!(0 $stack $bail ($($fuel)*) {($($buf)* $andand) $($parse)*} ($($rest)*) $($rest)*)
};
Expand Down
11 changes: 11 additions & 0 deletions tests/test_ensure.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -186,6 +186,17 @@ fn test_unary() {
assert_err(test, "Condition failed: `&mut x == *&&mut &2` (1 vs 2)");
}

#[rustversion::since(1.82)]
#[test]
fn test_raw_addr() {
let mut x = 1;
let test = || Ok(ensure!(S + &raw const x != S + &raw mut x));
assert_err(
test,
"Condition failed: `S + &raw const x != S + &raw mut x` (false vs false)",
);
}

#[test]
fn test_if() {
#[rustfmt::skip]
Expand Down
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