diff options
| -rw-r--r-- | library/proc_macro/src/lib.rs | 12 | ||||
| -rw-r--r-- | src/test/ui/proc-macro/auxiliary/api/parse.rs | 4 |
2 files changed, 14 insertions, 2 deletions
diff --git a/library/proc_macro/src/lib.rs b/library/proc_macro/src/lib.rs index 3a06cd04ab1..9d673d69687 100644 --- a/library/proc_macro/src/lib.rs +++ b/library/proc_macro/src/lib.rs @@ -1074,7 +1074,11 @@ impl Literal { if !n.is_finite() { panic!("Invalid float literal {}", n); } - Literal(bridge::client::Literal::float(&n.to_string())) + let mut repr = n.to_string(); + if !repr.contains('.') { + repr.push_str(".0"); + } + Literal(bridge::client::Literal::float(&repr)) } /// Creates a new suffixed floating-point literal. @@ -1115,7 +1119,11 @@ impl Literal { if !n.is_finite() { panic!("Invalid float literal {}", n); } - Literal(bridge::client::Literal::float(&n.to_string())) + let mut repr = n.to_string(); + if !repr.contains('.') { + repr.push_str(".0"); + } + Literal(bridge::client::Literal::float(&repr)) } /// Creates a new suffixed floating-point literal. diff --git a/src/test/ui/proc-macro/auxiliary/api/parse.rs b/src/test/ui/proc-macro/auxiliary/api/parse.rs index 93551ebaf82..ef777fc0333 100644 --- a/src/test/ui/proc-macro/auxiliary/api/parse.rs +++ b/src/test/ui/proc-macro/auxiliary/api/parse.rs @@ -8,6 +8,10 @@ pub fn test() { fn test_display_literal() { assert_eq!(Literal::isize_unsuffixed(-10).to_string(), "-10"); assert_eq!(Literal::isize_suffixed(-10).to_string(), "-10isize"); + assert_eq!(Literal::f32_unsuffixed(-10.0).to_string(), "-10.0"); + assert_eq!(Literal::f32_suffixed(-10.0).to_string(), "-10f32"); + assert_eq!(Literal::f64_unsuffixed(-10.0).to_string(), "-10.0"); + assert_eq!(Literal::f64_suffixed(-10.0).to_string(), "-10f64"); } fn test_parse_literal() { |