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Show backtrace numbers in backtrace whenever more than one is involved #75194

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merged 1 commit into from
Aug 5, 2020
Merged

Show backtrace numbers in backtrace whenever more than one is involved #75194

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4 changes: 2 additions & 2 deletions src/librustc_errors/emitter.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -362,7 +362,7 @@ pub trait Emitter {
format!(
"in this expansion of `{}`{}",
trace.kind.descr(),
if macro_backtrace.len() > 2 {
if macro_backtrace.len() > 1 {
// if macro_backtrace.len() == 1 it'll be
// pointed at by "in this macro invocation"
format!(" (#{})", i + 1)
Expand Down Expand Up @@ -393,7 +393,7 @@ pub trait Emitter {
trace.call_site,
format!(
"in this macro invocation{}",
if macro_backtrace.len() > 2 && always_backtrace {
if macro_backtrace.len() > 1 && always_backtrace {
// only specify order when the macro
// backtrace is multiple levels deep
format!(" (#{})", i + 1)
Expand Down
8 changes: 4 additions & 4 deletions src/test/ui/macro_backtrace/main.-Zmacro-backtrace.stderr
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Original file line number Diff line number Diff line change
Expand Up @@ -17,20 +17,20 @@ LL | / macro_rules! pong {
LL | | () => { syntax error };
| | ^^^^^ expected one of 8 possible tokens
LL | | }
| |__- in this expansion of `pong!`
| |__- in this expansion of `pong!` (#2)
...
LL | ping!();
| -------- in this macro invocation
| -------- in this macro invocation (#1)
|
::: $DIR/auxiliary/ping.rs:5:1
|
LL | / macro_rules! ping {
LL | | () => {
LL | | pong!();
| | -------- in this macro invocation
| | -------- in this macro invocation (#2)
LL | | }
LL | | }
| |_- in this expansion of `ping!`
| |_- in this expansion of `ping!` (#1)

error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `error`
--> $DIR/main.rs:10:20
Expand Down