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Point at internal span in format string

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This commit is contained in:
Esteban Küber 2018-07-22 22:40:24 -07:00
parent d3b3bc5767
commit 38abca8c2d
5 changed files with 224 additions and 18 deletions
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67
src/test/compile-fail/ifmt-bad-arg.rs
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// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
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=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
}