diff options
Diffstat (limited to 'src/test/ui/fmt')
| -rw-r--r-- | src/test/ui/fmt/ifmt-bad-arg.rs | 94 | ||||
| -rw-r--r-- | src/test/ui/fmt/ifmt-bad-arg.stderr | 327 | ||||
| -rw-r--r-- | src/test/ui/fmt/ifmt-bad-format-args.rs | 4 | ||||
| -rw-r--r-- | src/test/ui/fmt/ifmt-bad-format-args.stderr | 21 | ||||
| -rw-r--r-- | src/test/ui/fmt/ifmt-unimpl.rs | 4 | ||||
| -rw-r--r-- | src/test/ui/fmt/ifmt-unimpl.stderr | 13 | ||||
| -rw-r--r-- | src/test/ui/fmt/ifmt-unknown-trait.rs | 4 | ||||
| -rw-r--r-- | src/test/ui/fmt/ifmt-unknown-trait.stderr | 19 |
8 files changed, 486 insertions, 0 deletions
diff --git a/src/test/ui/fmt/ifmt-bad-arg.rs b/src/test/ui/fmt/ifmt-bad-arg.rs new file mode 100644 index 00000000000..a0b0a8fb985 --- /dev/null +++ b/src/test/ui/fmt/ifmt-bad-arg.rs @@ -0,0 +1,94 @@ +fn main() { + // bad arguments to the format! call + + // bad number of arguments, see #44954 (originally #15780) + + format!("{}"); + //~^ ERROR: 1 positional argument in format string, but no arguments were given + + format!("{1}", 1); + //~^ ERROR: invalid reference to positional argument 1 (there is 1 argument) + //~^^ ERROR: argument never used + + format!("{} {}"); + //~^ ERROR: 2 positional arguments in format string, but no arguments were given + + format!("{0} {1}", 1); + //~^ ERROR: invalid reference to positional argument 1 (there is 1 argument) + + format!("{0} {1} {2}", 1, 2); + //~^ ERROR: invalid reference to positional argument 2 (there are 2 arguments) + + format!("{} {value} {} {}", 1, value=2); + //~^ ERROR: invalid reference to positional argument 2 (there are 2 arguments) + format!("{name} {value} {} {} {} {} {} {}", 0, name=1, value=2); + //~^ ERROR: invalid reference to positional arguments 3, 4 and 5 (there are 3 arguments) + + format!("{} {foo} {} {bar} {}", 1, 2, 3); + //~^ ERROR: there is no argument named `foo` + //~^^ ERROR: there is no argument named `bar` + + format!("{foo}"); //~ ERROR: no argument named `foo` + format!("", 1, 2); //~ ERROR: multiple unused formatting arguments + format!("{}", 1, 2); //~ ERROR: argument never used + format!("{1}", 1, 2); //~ ERROR: argument never used + format!("{}", 1, foo=2); //~ ERROR: named argument never used + format!("{foo}", 1, foo=2); //~ ERROR: argument never used + format!("", foo=2); //~ ERROR: named argument never used + format!("{} {}", 1, 2, foo=1, bar=2); //~ ERROR: multiple unused formatting arguments + + format!("{foo}", foo=1, foo=2); //~ ERROR: duplicate argument + format!("{foo} {} {}", foo=1, 2); //~ ERROR: positional arguments cannot follow + + // bad named arguments, #35082 + + format!("{valuea} {valueb}", valuea=5, valuec=7); + //~^ ERROR there is no argument named `valueb` + //~^^ ERROR named argument never used + + // bad syntax of the format string + + format!("{"); //~ ERROR: expected `'}'` but string was terminated + + format!("foo } bar"); //~ ERROR: unmatched `}` found + format!("foo }"); //~ ERROR: unmatched `}` found + + format!("foo %s baz", "bar"); //~ ERROR: argument never used + + format!(r##" + + {foo} + + "##); + //~^^^ ERROR: there is no argument named `foo` + + // bad syntax in format string with multiple newlines, #53836 + format!("first number: {} +second number: {} +third number: {} +fourth number: {} +fifth number: {} +sixth number: {} +seventh number: {} +eighth number: {} +ninth number: { +tenth number: {}", + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10); + //~^^ ERROR: invalid format string + println!("{} {:.*} {}", 1, 3.2, 4); + //~^ ERROR 4 positional arguments in format string, but there are 3 arguments + //~| ERROR mismatched types + println!("{} {:07$.*} {}", 1, 3.2, 4); + //~^ ERROR 4 positional arguments in format string, but there are 3 arguments + //~| ERROR mismatched types + println!("{} {:07$} {}", 1, 3.2, 4); + //~^ ERROR invalid reference to positional argument 7 (there are 3 arguments) + println!("{:foo}", 1); //~ ERROR unknown format trait `foo` + println!("{5} {:4$} {6:7$}", 1); + //~^ ERROR invalid reference to positional arguments 4, 5, 6 and 7 (there is 1 argument) + + // We used to ICE here because we tried to unconditionally access the first argument, which + // doesn't exist. + println!("{:.*}"); + //~^ ERROR 2 positional arguments in format string, but no arguments were given +} diff --git a/src/test/ui/fmt/ifmt-bad-arg.stderr b/src/test/ui/fmt/ifmt-bad-arg.stderr new file mode 100644 index 00000000000..0ff478826f7 --- /dev/null +++ b/src/test/ui/fmt/ifmt-bad-arg.stderr @@ -0,0 +1,327 @@ +error: 1 positional argument in format string, but no arguments were given + --> $DIR/ifmt-bad-arg.rs:6:14 + | +LL | format!("{}"); + | ^^ + +error: invalid reference to positional argument 1 (there is 1 argument) + --> $DIR/ifmt-bad-arg.rs:9:14 + | +LL | format!("{1}", 1); + | ^^^ + | + = note: positional arguments are zero-based + +error: argument never used + --> $DIR/ifmt-bad-arg.rs:9:20 + | +LL | format!("{1}", 1); + | ----- ^ argument never used + | | + | formatting specifier missing + +error: 2 positional arguments in format string, but no arguments were given + --> $DIR/ifmt-bad-arg.rs:13:14 + | +LL | format!("{} {}"); + | ^^ ^^ + +error: invalid reference to positional argument 1 (there is 1 argument) + --> $DIR/ifmt-bad-arg.rs:16:18 + | +LL | format!("{0} {1}", 1); + | ^^^ + | + = note: positional arguments are zero-based + +error: invalid reference to positional argument 2 (there are 2 arguments) + --> $DIR/ifmt-bad-arg.rs:19:22 + | +LL | format!("{0} {1} {2}", 1, 2); + | ^^^ + | + = note: positional arguments are zero-based + +error: invalid reference to positional argument 2 (there are 2 arguments) + --> $DIR/ifmt-bad-arg.rs:22:28 + | +LL | format!("{} {value} {} {}", 1, value=2); + | ^^ + | + = note: positional arguments are zero-based + +error: invalid reference to positional arguments 3, 4 and 5 (there are 3 arguments) + --> $DIR/ifmt-bad-arg.rs:24:38 + | +LL | format!("{name} {value} {} {} {} {} {} {}", 0, name=1, value=2); + | ^^ ^^ ^^ + | + = note: positional arguments are zero-based + +error: there is no argument named `foo` + --> $DIR/ifmt-bad-arg.rs:27:17 + | +LL | format!("{} {foo} {} {bar} {}", 1, 2, 3); + | ^^^^^ + | + = help: if you intended to capture `foo` from the surrounding scope, add `#![feature(format_args_capture)]` to the crate attributes + +error: there is no argument named `bar` + --> $DIR/ifmt-bad-arg.rs:27:26 + | +LL | format!("{} {foo} {} {bar} {}", 1, 2, 3); + | ^^^^^ + | + = help: if you intended to capture `bar` from the surrounding scope, add `#![feature(format_args_capture)]` to the crate attributes + +error: there is no argument named `foo` + --> $DIR/ifmt-bad-arg.rs:31:14 + | +LL | format!("{foo}"); + | ^^^^^ + | + = help: if you intended to capture `foo` from the surrounding scope, add `#![feature(format_args_capture)]` to the crate attributes + +error: multiple unused formatting arguments + --> $DIR/ifmt-bad-arg.rs:32:17 + | +LL | format!("", 1, 2); + | -- ^ ^ argument never used + | | | + | | argument never used + | multiple missing formatting specifiers + +error: argument never used + --> $DIR/ifmt-bad-arg.rs:33:22 + | +LL | format!("{}", 1, 2); + | ---- ^ argument never used + | | + | formatting specifier missing + +error: argument never used + --> $DIR/ifmt-bad-arg.rs:34:20 + | +LL | format!("{1}", 1, 2); + | ----- ^ argument never used + | | + | formatting specifier missing + +error: named argument never used + --> $DIR/ifmt-bad-arg.rs:35:26 + | +LL | format!("{}", 1, foo=2); + | ---- ^ named argument never used + | | + | formatting specifier missing + +error: argument never used + --> $DIR/ifmt-bad-arg.rs:36:22 + | +LL | format!("{foo}", 1, foo=2); + | ------- ^ argument never used + | | + | formatting specifier missing + +error: named argument never used + --> $DIR/ifmt-bad-arg.rs:37:21 + | +LL | format!("", foo=2); + | -- ^ named argument never used + | | + | formatting specifier missing + +error: multiple unused formatting arguments + --> $DIR/ifmt-bad-arg.rs:38:32 + | +LL | format!("{} {}", 1, 2, foo=1, bar=2); + | ------- ^ ^ named argument never used + | | | + | | named argument never used + | multiple missing formatting specifiers + +error: duplicate argument named `foo` + --> $DIR/ifmt-bad-arg.rs:40:33 + | +LL | format!("{foo}", foo=1, foo=2); + | - ^ duplicate argument + | | + | previously here + +error: positional arguments cannot follow named arguments + --> $DIR/ifmt-bad-arg.rs:41:35 + | +LL | format!("{foo} {} {}", foo=1, 2); + | - ^ positional arguments must be before named arguments + | | + | named argument + +error: there is no argument named `valueb` + --> $DIR/ifmt-bad-arg.rs:45:23 + | +LL | format!("{valuea} {valueb}", valuea=5, valuec=7); + | ^^^^^^^^ + | + = help: if you intended to capture `valueb` from the surrounding scope, add `#![feature(format_args_capture)]` to the crate attributes + +error: named argument never used + --> $DIR/ifmt-bad-arg.rs:45:51 + | +LL | format!("{valuea} {valueb}", valuea=5, valuec=7); + | ------------------- ^ named argument never used + | | + | formatting specifier missing + +error: invalid format string: expected `'}'` but string was terminated + --> $DIR/ifmt-bad-arg.rs:51:15 + | +LL | format!("{"); + | -^ expected `'}'` in format string + | | + | because of this opening brace + | + = note: if you intended to print `{`, you can escape it using `{{` + +error: invalid format string: unmatched `}` found + --> $DIR/ifmt-bad-arg.rs:53:18 + | +LL | format!("foo } bar"); + | ^ unmatched `}` in format string + | + = note: if you intended to print `}`, you can escape it using `}}` + +error: invalid format string: unmatched `}` found + --> $DIR/ifmt-bad-arg.rs:54:18 + | +LL | format!("foo }"); + | ^ unmatched `}` in format string + | + = note: if you intended to print `}`, you can escape it using `}}` + +error: argument never used + --> $DIR/ifmt-bad-arg.rs:56:27 + | +LL | format!("foo %s baz", "bar"); + | -- ^^^^^ argument never used + | | + | help: format specifiers use curly braces: `{}` + | + = note: printf formatting not supported; see the documentation for `std::fmt` + +error: there is no argument named `foo` + --> $DIR/ifmt-bad-arg.rs:60:9 + | +LL | {foo} + | ^^^^^ + | + = help: if you intended to capture `foo` from the surrounding scope, add `#![feature(format_args_capture)]` to the crate attributes + +error: invalid format string: expected `'}'`, found `'t'` + --> $DIR/ifmt-bad-arg.rs:75:1 + | +LL | ninth number: { + | - because of this opening brace +LL | tenth number: {}", + | ^ expected `}` in format string + | + = note: if you intended to print `{`, you can escape it using `{{` + +error: 4 positional arguments in format string, but there are 3 arguments + --> $DIR/ifmt-bad-arg.rs:78:15 + | +LL | println!("{} {:.*} {}", 1, 3.2, 4); + | ^^ ^^--^ ^^ - --- - + | | | + | | this parameter corresponds to the precision flag + | this precision flag adds an extra required argument at position 1, which is why there are 4 arguments expected + | + = note: positional arguments are zero-based + = note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html + +error: 4 positional arguments in format string, but there are 3 arguments + --> $DIR/ifmt-bad-arg.rs:81:15 + | +LL | println!("{} {:07$.*} {}", 1, 3.2, 4); + | ^^ ^^^----^ ^^ - --- - + | | | | + | | | this parameter corresponds to the precision flag + | | this precision flag adds an extra required argument at position 1, which is why there are 4 arguments expected + | this width flag expects an `usize` argument at position 7, but there are 3 arguments + | + = note: positional arguments are zero-based + = note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html + +error: invalid reference to positional argument 7 (there are 3 arguments) + --> $DIR/ifmt-bad-arg.rs:84:18 + | +LL | println!("{} {:07$} {}", 1, 3.2, 4); + | ^^^--^ + | | + | this width flag expects an `usize` argument at position 7, but there are 3 arguments + | + = note: positional arguments are zero-based + = note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html + +error: unknown format trait `foo` + --> $DIR/ifmt-bad-arg.rs:86:17 + | +LL | println!("{:foo}", 1); + | ^^^ + | + = note: the only appropriate formatting traits are: + - ``, which uses the `Display` trait + - `?`, which uses the `Debug` trait + - `e`, which uses the `LowerExp` trait + - `E`, which uses the `UpperExp` trait + - `o`, which uses the `Octal` trait + - `p`, which uses the `Pointer` trait + - `b`, which uses the `Binary` trait + - `x`, which uses the `LowerHex` trait + - `X`, which uses the `UpperHex` trait + +error: invalid reference to positional arguments 4, 5, 6 and 7 (there is 1 argument) + --> $DIR/ifmt-bad-arg.rs:87:15 + | +LL | println!("{5} {:4$} {6:7$}", 1); + | ^^^ ^^--^ ^^^--^ + | | | + | | this width flag expects an `usize` argument at position 7, but there is 1 argument + | this width flag expects an `usize` argument at position 4, but there is 1 argument + | + = note: positional arguments are zero-based + = note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html + +error: 2 positional arguments in format string, but no arguments were given + --> $DIR/ifmt-bad-arg.rs:92:15 + | +LL | println!("{:.*}"); + | ^^--^ + | | + | this precision flag adds an extra required argument at position 0, which is why there are 2 arguments expected + | + = note: positional arguments are zero-based + = note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html + +error[E0308]: mismatched types + --> $DIR/ifmt-bad-arg.rs:78:32 + | +LL | println!("{} {:.*} {}", 1, 3.2, 4); + | ^^^ expected `usize`, found floating-point number + | + = note: expected reference `&usize` + found reference `&{float}` + = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) + +error[E0308]: mismatched types + --> $DIR/ifmt-bad-arg.rs:81:35 + | +LL | println!("{} {:07$.*} {}", 1, 3.2, 4); + | ^^^ expected `usize`, found floating-point number + | + = note: expected reference `&usize` + found reference `&{float}` + = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 36 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/fmt/ifmt-bad-format-args.rs b/src/test/ui/fmt/ifmt-bad-format-args.rs new file mode 100644 index 00000000000..ba7301561bd --- /dev/null +++ b/src/test/ui/fmt/ifmt-bad-format-args.rs @@ -0,0 +1,4 @@ +fn main() { + format_args!(); //~ ERROR: requires at least a format string argument + format_args!(|| {}); //~ ERROR: must be a string literal +} diff --git a/src/test/ui/fmt/ifmt-bad-format-args.stderr b/src/test/ui/fmt/ifmt-bad-format-args.stderr new file mode 100644 index 00000000000..8bb0d40629f --- /dev/null +++ b/src/test/ui/fmt/ifmt-bad-format-args.stderr @@ -0,0 +1,21 @@ +error: requires at least a format string argument + --> $DIR/ifmt-bad-format-args.rs:2:5 + | +LL | format_args!(); + | ^^^^^^^^^^^^^^^ + | + = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) + +error: format argument must be a string literal + --> $DIR/ifmt-bad-format-args.rs:3:18 + | +LL | format_args!(|| {}); + | ^^^^^ + | +help: you might be missing a string literal to format with + | +LL | format_args!("{}", || {}); + | ^^^^^ + +error: aborting due to 2 previous errors + diff --git a/src/test/ui/fmt/ifmt-unimpl.rs b/src/test/ui/fmt/ifmt-unimpl.rs new file mode 100644 index 00000000000..258f4eea509 --- /dev/null +++ b/src/test/ui/fmt/ifmt-unimpl.rs @@ -0,0 +1,4 @@ +fn main() { + format!("{:X}", "3"); + //~^ ERROR: `str: UpperHex` is not satisfied +} diff --git a/src/test/ui/fmt/ifmt-unimpl.stderr b/src/test/ui/fmt/ifmt-unimpl.stderr new file mode 100644 index 00000000000..65b0f4a09b3 --- /dev/null +++ b/src/test/ui/fmt/ifmt-unimpl.stderr @@ -0,0 +1,13 @@ +error[E0277]: the trait bound `str: UpperHex` is not satisfied + --> $DIR/ifmt-unimpl.rs:2:21 + | +LL | format!("{:X}", "3"); + | ^^^ the trait `UpperHex` is not implemented for `str` + | + = note: required because of the requirements on the impl of `UpperHex` for `&str` + = note: required by `std::fmt::UpperHex::fmt` + = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/fmt/ifmt-unknown-trait.rs b/src/test/ui/fmt/ifmt-unknown-trait.rs new file mode 100644 index 00000000000..158152c89a4 --- /dev/null +++ b/src/test/ui/fmt/ifmt-unknown-trait.rs @@ -0,0 +1,4 @@ +fn main() { + format!("{:notimplemented}", "3"); + //~^ ERROR: unknown format trait `notimplemented` +} diff --git a/src/test/ui/fmt/ifmt-unknown-trait.stderr b/src/test/ui/fmt/ifmt-unknown-trait.stderr new file mode 100644 index 00000000000..459432bf4e4 --- /dev/null +++ b/src/test/ui/fmt/ifmt-unknown-trait.stderr @@ -0,0 +1,19 @@ +error: unknown format trait `notimplemented` + --> $DIR/ifmt-unknown-trait.rs:2:16 + | +LL | format!("{:notimplemented}", "3"); + | ^^^^^^^^^^^^^^ + | + = note: the only appropriate formatting traits are: + - ``, which uses the `Display` trait + - `?`, which uses the `Debug` trait + - `e`, which uses the `LowerExp` trait + - `E`, which uses the `UpperExp` trait + - `o`, which uses the `Octal` trait + - `p`, which uses the `Pointer` trait + - `b`, which uses the `Binary` trait + - `x`, which uses the `LowerHex` trait + - `X`, which uses the `UpperHex` trait + +error: aborting due to previous error + |