Rollup merge of #71322 - petrochenkov:tuple00, r=nikomatsakis
Accept tuple.0.0 as tuple indexing (take 2) If we expect something identifier-like when parsing a field name after `.`, but encounter a float token, we break that float token into parts, similarly to how we break `&&` into `&` `&`, or `<<` into `<` `<`, etc. An alternative to https://github.com/rust-lang/rust/pull/70420.
This commit is contained in:
Manish Goregaokar
GitHub
commit
ec1e7e9dbc
13 changed files with 615 additions and 60 deletions
17
src/test/ui/parser/float-field-interpolated.rs
Normal file
17
src/test/ui/parser/float-field-interpolated.rs
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@ -0,0 +1,17 @@
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struct S(u8, (u8, u8));
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macro_rules! generate_field_accesses {
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($a:tt, $b:literal, $c:expr) => {
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let s = S(0, (0, 0));
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s.$a; // OK
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{ s.$b; } //~ ERROR unexpected token: `1.1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1`
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{ s.$c; } //~ ERROR unexpected token: `1.1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1`
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};
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}
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fn main() {
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generate_field_accesses!(1.1, 1.1, 1.1);
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}
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46
src/test/ui/parser/float-field-interpolated.stderr
Normal file
46
src/test/ui/parser/float-field-interpolated.stderr
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@ -0,0 +1,46 @@
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error: unexpected token: `1.1`
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--> $DIR/float-field-interpolated.rs:8:13
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LL | { s.$b; }
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| ^^
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...
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LL | generate_field_accesses!(1.1, 1.1, 1.1);
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| ---------------------------------------- in this macro invocation
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= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1`
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--> $DIR/float-field-interpolated.rs:8:13
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LL | { s.$b; }
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| ^^ expected one of `.`, `;`, `?`, `}`, or an operator
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...
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LL | generate_field_accesses!(1.1, 1.1, 1.1);
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| ---------------------------------------- in this macro invocation
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= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
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error: unexpected token: `1.1`
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--> $DIR/float-field-interpolated.rs:10:13
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LL | { s.$c; }
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| ^^
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...
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LL | generate_field_accesses!(1.1, 1.1, 1.1);
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| ---------------------------------------- in this macro invocation
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= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1`
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--> $DIR/float-field-interpolated.rs:10:13
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LL | { s.$c; }
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| ^^ expected one of `.`, `;`, `?`, `}`, or an operator
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...
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LL | generate_field_accesses!(1.1, 1.1, 1.1);
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| ---------------------------------------- in this macro invocation
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= note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
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error: aborting due to 4 previous errors
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62
src/test/ui/parser/float-field.rs
Normal file
62
src/test/ui/parser/float-field.rs
Normal file
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struct S(u8, (u8, u8));
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fn main() {
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let s = S(0, (0, 0));
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s.1e1; //~ ERROR no field `1e1` on type `S`
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s.1.; //~ ERROR unexpected token: `;`
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s.1.1;
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s.1.1e1; //~ ERROR no field `1e1` on type `(u8, u8)`
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{ s.1e+; } //~ ERROR unexpected token: `1e+`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1e+`
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//~| ERROR expected at least one digit in exponent
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{ s.1e-; } //~ ERROR unexpected token: `1e-`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1e-`
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//~| ERROR expected at least one digit in exponent
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{ s.1e+1; } //~ ERROR unexpected token: `1e+1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1e+1`
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{ s.1e-1; } //~ ERROR unexpected token: `1e-1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1e-1`
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{ s.1.1e+1; } //~ ERROR unexpected token: `1.1e+1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1e+1`
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{ s.1.1e-1; } //~ ERROR unexpected token: `1.1e-1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1e-1`
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s.0x1e1; //~ ERROR no field `0x1e1` on type `S`
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s.0x1.; //~ ERROR no field `0x1` on type `S`
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//~| ERROR hexadecimal float literal is not supported
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//~| ERROR unexpected token: `;`
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s.0x1.1; //~ ERROR no field `0x1` on type `S`
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//~| ERROR hexadecimal float literal is not supported
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s.0x1.1e1; //~ ERROR no field `0x1` on type `S`
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//~| ERROR hexadecimal float literal is not supported
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{ s.0x1e+; } //~ ERROR expected expression, found `;`
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{ s.0x1e-; } //~ ERROR expected expression, found `;`
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s.0x1e+1; //~ ERROR no field `0x1e` on type `S`
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s.0x1e-1; //~ ERROR no field `0x1e` on type `S`
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{ s.0x1.1e+1; } //~ ERROR unexpected token: `0x1.1e+1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `0x1.1e+1`
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//~| ERROR hexadecimal float literal is not supported
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{ s.0x1.1e-1; } //~ ERROR unexpected token: `0x1.1e-1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `0x1.1e-1`
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//~| ERROR hexadecimal float literal is not supported
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s.1e1f32; //~ ERROR no field `1e1` on type `S`
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//~| ERROR suffixes on a tuple index are invalid
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s.1.f32; //~ ERROR no field `f32` on type `(u8, u8)`
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s.1.1f32; //~ ERROR suffixes on a tuple index are invalid
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s.1.1e1f32; //~ ERROR no field `1e1` on type `(u8, u8)`
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//~| ERROR suffixes on a tuple index are invalid
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{ s.1e+f32; } //~ ERROR unexpected token: `1e+f32`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1e+f32`
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//~| ERROR expected at least one digit in exponent
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{ s.1e-f32; } //~ ERROR unexpected token: `1e-f32`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1e-f32`
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//~| ERROR expected at least one digit in exponent
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{ s.1e+1f32; } //~ ERROR unexpected token: `1e+1f32`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1e+1f32`
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{ s.1e-1f32; } //~ ERROR unexpected token: `1e-1f32`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1e-1f32`
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{ s.1.1e+1f32; } //~ ERROR unexpected token: `1.1e+1f32`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1e+1f32`
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{ s.1.1e-1f32; } //~ ERROR unexpected token: `1.1e-1f32`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1e-1f32`
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}
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349
src/test/ui/parser/float-field.stderr
Normal file
349
src/test/ui/parser/float-field.stderr
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@ -0,0 +1,349 @@
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error: expected at least one digit in exponent
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--> $DIR/float-field.rs:10:9
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LL | { s.1e+; }
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| ^^^
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error: expected at least one digit in exponent
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--> $DIR/float-field.rs:13:9
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LL | { s.1e-; }
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| ^^^
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error: hexadecimal float literal is not supported
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--> $DIR/float-field.rs:25:7
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LL | s.0x1.;
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| ^^^^
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error: hexadecimal float literal is not supported
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--> $DIR/float-field.rs:28:7
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LL | s.0x1.1;
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| ^^^^^
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error: hexadecimal float literal is not supported
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--> $DIR/float-field.rs:30:7
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LL | s.0x1.1e1;
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| ^^^^^^^
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error: hexadecimal float literal is not supported
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--> $DIR/float-field.rs:36:9
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LL | { s.0x1.1e+1; }
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| ^^^^^^^^
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error: hexadecimal float literal is not supported
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--> $DIR/float-field.rs:39:9
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LL | { s.0x1.1e-1; }
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| ^^^^^^^^
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error: expected at least one digit in exponent
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--> $DIR/float-field.rs:48:9
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LL | { s.1e+f32; }
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| ^^^^^^
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error: expected at least one digit in exponent
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--> $DIR/float-field.rs:51:9
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LL | { s.1e-f32; }
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| ^^^^^^
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error: unexpected token: `;`
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--> $DIR/float-field.rs:7:9
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LL | s.1.;
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| ^
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error: unexpected token: `1e+`
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--> $DIR/float-field.rs:10:9
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LL | { s.1e+; }
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| ^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1e+`
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--> $DIR/float-field.rs:10:9
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LL | { s.1e+; }
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| ^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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error: unexpected token: `1e-`
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--> $DIR/float-field.rs:13:9
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LL | { s.1e-; }
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| ^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1e-`
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--> $DIR/float-field.rs:13:9
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LL | { s.1e-; }
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| ^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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error: unexpected token: `1e+1`
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--> $DIR/float-field.rs:16:9
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LL | { s.1e+1; }
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| ^^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1e+1`
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--> $DIR/float-field.rs:16:9
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LL | { s.1e+1; }
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| ^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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error: unexpected token: `1e-1`
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--> $DIR/float-field.rs:18:9
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LL | { s.1e-1; }
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| ^^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1e-1`
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--> $DIR/float-field.rs:18:9
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|
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LL | { s.1e-1; }
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| ^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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error: unexpected token: `1.1e+1`
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--> $DIR/float-field.rs:20:9
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|
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LL | { s.1.1e+1; }
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| ^^^^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1e+1`
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--> $DIR/float-field.rs:20:9
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LL | { s.1.1e+1; }
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| ^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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error: unexpected token: `1.1e-1`
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--> $DIR/float-field.rs:22:9
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LL | { s.1.1e-1; }
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| ^^^^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1e-1`
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--> $DIR/float-field.rs:22:9
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LL | { s.1.1e-1; }
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| ^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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error: unexpected token: `;`
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--> $DIR/float-field.rs:25:11
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LL | s.0x1.;
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| ^
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error: expected expression, found `;`
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--> $DIR/float-field.rs:32:14
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|
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LL | { s.0x1e+; }
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| ^ expected expression
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error: expected expression, found `;`
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--> $DIR/float-field.rs:33:14
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|
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LL | { s.0x1e-; }
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| ^ expected expression
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error: unexpected token: `0x1.1e+1`
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--> $DIR/float-field.rs:36:9
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|
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LL | { s.0x1.1e+1; }
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| ^^^^^^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `0x1.1e+1`
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--> $DIR/float-field.rs:36:9
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|
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LL | { s.0x1.1e+1; }
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| ^^^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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error: unexpected token: `0x1.1e-1`
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--> $DIR/float-field.rs:39:9
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|
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LL | { s.0x1.1e-1; }
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| ^^^^^^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `0x1.1e-1`
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--> $DIR/float-field.rs:39:9
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|
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LL | { s.0x1.1e-1; }
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| ^^^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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error: suffixes on a tuple index are invalid
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--> $DIR/float-field.rs:42:7
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|
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LL | s.1e1f32;
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| ^^^^^^ invalid suffix `f32`
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error: suffixes on a tuple index are invalid
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--> $DIR/float-field.rs:45:7
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|
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LL | s.1.1f32;
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| ^^^^^^ invalid suffix `f32`
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error: suffixes on a tuple index are invalid
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--> $DIR/float-field.rs:46:7
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|
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LL | s.1.1e1f32;
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| ^^^^^^^^ invalid suffix `f32`
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error: unexpected token: `1e+f32`
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--> $DIR/float-field.rs:48:9
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|
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LL | { s.1e+f32; }
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| ^^^^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1e+f32`
|
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--> $DIR/float-field.rs:48:9
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|
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LL | { s.1e+f32; }
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| ^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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|
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error: unexpected token: `1e-f32`
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--> $DIR/float-field.rs:51:9
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|
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LL | { s.1e-f32; }
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| ^^^^^^
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|
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1e-f32`
|
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--> $DIR/float-field.rs:51:9
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|
|
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LL | { s.1e-f32; }
|
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| ^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
|
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|
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error: unexpected token: `1e+1f32`
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--> $DIR/float-field.rs:54:9
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|
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LL | { s.1e+1f32; }
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| ^^^^^^^
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|
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1e+1f32`
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--> $DIR/float-field.rs:54:9
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|
|
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LL | { s.1e+1f32; }
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| ^^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
|
||||
|
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error: unexpected token: `1e-1f32`
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--> $DIR/float-field.rs:56:9
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|
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LL | { s.1e-1f32; }
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| ^^^^^^^
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|
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1e-1f32`
|
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--> $DIR/float-field.rs:56:9
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|
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LL | { s.1e-1f32; }
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| ^^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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|
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error: unexpected token: `1.1e+1f32`
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--> $DIR/float-field.rs:58:9
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|
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LL | { s.1.1e+1f32; }
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| ^^^^^^^^^
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1e+1f32`
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--> $DIR/float-field.rs:58:9
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|
|
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LL | { s.1.1e+1f32; }
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| ^^^^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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|
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error: unexpected token: `1.1e-1f32`
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--> $DIR/float-field.rs:60:9
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|
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LL | { s.1.1e-1f32; }
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| ^^^^^^^^^
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|
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error: expected one of `.`, `;`, `?`, `}`, or an operator, found `1.1e-1f32`
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--> $DIR/float-field.rs:60:9
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|
|
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LL | { s.1.1e-1f32; }
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| ^^^^^^^^^ expected one of `.`, `;`, `?`, `}`, or an operator
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|
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error[E0609]: no field `1e1` on type `S`
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--> $DIR/float-field.rs:6:7
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|
|
||||
LL | s.1e1;
|
||||
| ^^^ unknown field
|
||||
|
|
||||
= note: available fields are: `0`, `1`
|
||||
|
||||
error[E0609]: no field `1e1` on type `(u8, u8)`
|
||||
--> $DIR/float-field.rs:9:7
|
||||
|
|
||||
LL | s.1.1e1;
|
||||
| ^^^^^
|
||||
|
||||
error[E0609]: no field `0x1e1` on type `S`
|
||||
--> $DIR/float-field.rs:24:7
|
||||
|
|
||||
LL | s.0x1e1;
|
||||
| ^^^^^ unknown field
|
||||
|
|
||||
= note: available fields are: `0`, `1`
|
||||
|
||||
error[E0609]: no field `0x1` on type `S`
|
||||
--> $DIR/float-field.rs:25:7
|
||||
|
|
||||
LL | s.0x1.;
|
||||
| ^^^^ unknown field
|
||||
|
|
||||
= note: available fields are: `0`, `1`
|
||||
|
||||
error[E0609]: no field `0x1` on type `S`
|
||||
--> $DIR/float-field.rs:28:7
|
||||
|
|
||||
LL | s.0x1.1;
|
||||
| ^^^^^ unknown field
|
||||
|
|
||||
= note: available fields are: `0`, `1`
|
||||
|
||||
error[E0609]: no field `0x1` on type `S`
|
||||
--> $DIR/float-field.rs:30:7
|
||||
|
|
||||
LL | s.0x1.1e1;
|
||||
| ^^^^^^^ unknown field
|
||||
|
|
||||
= note: available fields are: `0`, `1`
|
||||
|
||||
error[E0609]: no field `0x1e` on type `S`
|
||||
--> $DIR/float-field.rs:34:7
|
||||
|
|
||||
LL | s.0x1e+1;
|
||||
| ^^^^ unknown field
|
||||
|
|
||||
= note: available fields are: `0`, `1`
|
||||
|
||||
error[E0609]: no field `0x1e` on type `S`
|
||||
--> $DIR/float-field.rs:35:7
|
||||
|
|
||||
LL | s.0x1e-1;
|
||||
| ^^^^ unknown field
|
||||
|
|
||||
= note: available fields are: `0`, `1`
|
||||
|
||||
error[E0609]: no field `1e1` on type `S`
|
||||
--> $DIR/float-field.rs:42:7
|
||||
|
|
||||
LL | s.1e1f32;
|
||||
| ^^^^^^ unknown field
|
||||
|
|
||||
= note: available fields are: `0`, `1`
|
||||
|
||||
error[E0609]: no field `f32` on type `(u8, u8)`
|
||||
--> $DIR/float-field.rs:44:9
|
||||
|
|
||||
LL | s.1.f32;
|
||||
| ^^^
|
||||
|
||||
error[E0609]: no field `1e1` on type `(u8, u8)`
|
||||
--> $DIR/float-field.rs:46:7
|
||||
|
|
||||
LL | s.1.1e1f32;
|
||||
| ^^^^^^^^
|
||||
|
||||
error: aborting due to 55 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0609`.
|
||||
10
src/test/ui/tuple/index-float.rs
Normal file
10
src/test/ui/tuple/index-float.rs
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
// check-pass
|
||||
|
||||
fn main() {
|
||||
let tuple = (((),),);
|
||||
|
||||
let _ = tuple. 0.0; // OK, whitespace
|
||||
let _ = tuple.0. 0; // OK, whitespace
|
||||
|
||||
let _ = tuple./*special cases*/0.0; // OK, comment
|
||||
}
|
||||
7
src/test/ui/tuple/index-invalid.rs
Normal file
7
src/test/ui/tuple/index-invalid.rs
Normal file
|
|
@ -0,0 +1,7 @@
|
|||
fn main() {
|
||||
let _ = (((),),).1.0; //~ ERROR no field `1` on type `(((),),)`
|
||||
|
||||
let _ = (((),),).0.1; //~ ERROR no field `1` on type `((),)`
|
||||
|
||||
let _ = (((),),).000.000; //~ ERROR no field `000` on type `(((),),)`
|
||||
}
|
||||
21
src/test/ui/tuple/index-invalid.stderr
Normal file
21
src/test/ui/tuple/index-invalid.stderr
Normal file
|
|
@ -0,0 +1,21 @@
|
|||
error[E0609]: no field `1` on type `(((),),)`
|
||||
--> $DIR/index-invalid.rs:2:22
|
||||
|
|
||||
LL | let _ = (((),),).1.0;
|
||||
| ^^^
|
||||
|
||||
error[E0609]: no field `1` on type `((),)`
|
||||
--> $DIR/index-invalid.rs:4:22
|
||||
|
|
||||
LL | let _ = (((),),).0.1;
|
||||
| ^^^
|
||||
|
||||
error[E0609]: no field `000` on type `(((),),)`
|
||||
--> $DIR/index-invalid.rs:6:22
|
||||
|
|
||||
LL | let _ = (((),),).000.000;
|
||||
| ^^^^^^^
|
||||
|
||||
error: aborting due to 3 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0609`.
|
||||
9
src/test/ui/tuple/indexing-in-macro.rs
Normal file
9
src/test/ui/tuple/indexing-in-macro.rs
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
// check-pass
|
||||
|
||||
macro_rules! m {
|
||||
(.$l:literal) => {};
|
||||
}
|
||||
|
||||
m!(.0.0); // OK, `0.0` after a dot is still a float token.
|
||||
|
||||
fn main() {}
|
||||
12
src/test/ui/tuple/nested-index.rs
Normal file
12
src/test/ui/tuple/nested-index.rs
Normal file
|
|
@ -0,0 +1,12 @@
|
|||
// run-pass
|
||||
|
||||
fn main () {
|
||||
let n = (1, (2, 3)).1.1;
|
||||
assert_eq!(n, 3);
|
||||
|
||||
let n = (1, (2, (3, 4))).1.1.1;
|
||||
assert_eq!(n, 4);
|
||||
|
||||
// This is a range expression, not nested indexing.
|
||||
let _ = 0.0..1.1;
|
||||
}
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
// run-rustfix
|
||||
|
||||
fn main () {
|
||||
((1, (2, 3)).1).1; //~ ERROR unexpected token: `1.1`
|
||||
}
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
// run-rustfix
|
||||
|
||||
fn main () {
|
||||
(1, (2, 3)).1.1; //~ ERROR unexpected token: `1.1`
|
||||
}
|
||||
|
|
@ -1,11 +0,0 @@
|
|||
error: unexpected token: `1.1`
|
||||
--> $DIR/tuple-float-index.rs:4:17
|
||||
|
|
||||
LL | (1, (2, 3)).1.1;
|
||||
| ------------^^^
|
||||
| | |
|
||||
| | unexpected token
|
||||
| help: try parenthesizing the first index: `((1, (2, 3)).1).1`
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue