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Retain information on whether a format argument has explicit position

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This commit is contained in:
Tommy Ip 2017-11-09 17:16:25 +00:00
parent 13a416298c
commit b577b9aef3
4 changed files with 57 additions and 32 deletions
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15
src/test/compile-fail/ifmt-bad-arg.rs
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@ -17,22 +17,26 @@ fn main() {
//~^ ERROR: 1 positional argument in format string, but no arguments were given
format!("{1}", 1);
//~^ ERROR: 1 positional argument in format string, but there is only 1 argument
//~^ 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: 2 positional arguments in format string, but there is only 1 argument
//~^ ERROR: invalid reference to positional argument 1 (there is 1 argument)
format!("{0} {1} {2}", 1, 2);
//~^ ERROR: 3 positional arguments in format string, but there are only 2 arguments
//~^ 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 only 2 arguments)
//~^ 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 only 3 arguments)
//~^ 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
@ -41,6 +45,7 @@ fn main() {
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