nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2025-04-28 11:07:42 +00:00
Code Issues Packages Projects Releases Wiki Activity

Test for formating placeholders in panic_fmt lint test.

Browse Source
This commit is contained in:
Mara Bos 2020-10-18 23:36:00 +02:00
parent b8a8b681b8
commit 14dcf0a8ac
2 changed files with 24 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/test/ui/panic-brace.rs
View File

@ -4,6 +4,6 @@
fn main() { fn main() {
panic!("here's a brace: {"); //~ WARN Panic message contains a brace panic!("here's a brace: {"); //~ WARN Panic message contains a brace
std::panic!("another one: }"); //~ WARN Panic message contains a brace std::panic!("another one: }"); //~ WARN Panic message contains a brace
core::panic!("Hello { { {"); //~ WARN Panic message contains a brace core::panic!("Hello {}"); //~ WARN Panic message contains an unused formatting placeholder
assert!(false, "} } }..."); //~ WARN Panic message contains a brace assert!(false, "{:03x} bla"); //~ WARN Panic message contains an unused formatting placeholder
} }

36
src/test/ui/panic-brace.stderr
View File

@ -23,28 +23,36 @@ help: add a "{}" format string to use the message literally
LL | std::panic!("{}", "another one: }"); LL | std::panic!("{}", "another one: }");
| ^^^^^ | ^^^^^
warning: Panic message contains a brace warning: Panic message contains an unused formatting placeholder
--> $DIR/panic-brace.rs:7:5 --> $DIR/panic-brace.rs:7:18
| |
LL | core::panic!("Hello { { {"); LL | core::panic!("Hello {}");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^
| |
= note: This message is not used as a format string, but will be in a future Rust version = note: This message is not used as a format string when given without arguments, but will be in a future Rust version
help: add a "{}" format string to use the message literally help: add the missing argument(s)
| |
LL | core::panic!("{}", "Hello { { {"); LL | core::panic!("Hello {}", argument);
| ^^^^^^^^^^
help: or add a "{}" format string to use the message literally
|
LL | core::panic!("{}", "Hello {}");
| ^^^^^ | ^^^^^
warning: Panic message contains a brace warning: Panic message contains an unused formatting placeholder
--> $DIR/panic-brace.rs:8:5 --> $DIR/panic-brace.rs:8:20
| |
LL | assert!(false, "} } }..."); LL | assert!(false, "{:03x} bla");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ^^^^^^^^^^^^
| |
= note: This message is not used as a format string, but will be in a future Rust version = note: This message is not used as a format string when given without arguments, but will be in a future Rust version
help: add a "{}" format string to use the message literally help: add the missing argument(s)
| |
LL | assert!(false, "{}", "} } }..."); LL | assert!(false, "{:03x} bla", argument);
| ^^^^^^^^^^
help: or add a "{}" format string to use the message literally
|
LL | assert!(false, "{}", "{:03x} bla");
| ^^^^^ | ^^^^^
warning: 4 warnings emitted warning: 4 warnings emitted