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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/type/type-check/assignment-in-if.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/type/type-check/assignment-in-if.rs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/test/ui/type/type-check/assignment-in-if.rs b/src/test/ui/type/type-check/assignment-in-if.rs new file mode 100644 index 000000000..8da7b32b4 --- /dev/null +++ b/src/test/ui/type/type-check/assignment-in-if.rs @@ -0,0 +1,43 @@ +// Test that the parser does not attempt to parse struct literals +// within assignments in if expressions. + +#![allow(unused_parens)] + +struct Foo { + foo: usize +} + +fn main() { + let x = 1; + let y: Foo; + + // `x { ... }` should not be interpreted as a struct literal here + if x = x { + //~^ ERROR mismatched types + println!("{}", x); + } + // Explicit parentheses on the left should match behavior of above + if (x = x) { + //~^ ERROR mismatched types + println!("{}", x); + } + // The struct literal interpretation is fine with explicit parentheses on the right + if y = (Foo { foo: x }) { + //~^ ERROR mismatched types + println!("{}", x); + } + // "invalid left-hand side of assignment" error is suppresed + if 3 = x { + //~^ ERROR mismatched types + println!("{}", x); + } + if ( + if true { + x = 4 //~ ERROR mismatched types + } else { + x = 5 //~ ERROR mismatched types + } + ) { + println!("{}", x); + } +} |