[gcc/devel/rust/master] libproc_macro: Implement Display for Group

[gcc/devel/rust/master] libproc_macro: Implement Display for Group

[Thomas Schwinge]

https://gcc.gnu.org/g:8901323c390b71b41ba11d1bcb9f166f2e15226c

commit 8901323c390b71b41ba11d1bcb9f166f2e15226c
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Mon Feb 20 16:34:43 2023 +0100

    libproc_macro: Implement Display for Group
    
    Implement the Display trait for the rust Group external structure.
    
    ChangeLog:
    
            * librust/proc_macro/rust/group.rs: Implement Display.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Diff:
---
 librust/proc_macro/rust/group.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/librust/proc_macro/rust/group.rs b/librust/proc_macro/rust/group.rs
index 6512982cc32..5b4bd6c710e 100644
--- a/librust/proc_macro/rust/group.rs
+++ b/librust/proc_macro/rust/group.rs
@@ -76,8 +76,8 @@ impl Group {
 }
 
 impl fmt::Display for Group {
-    fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        todo!("Implement this function")
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.0.fmt(f)
     }
 }

[gcc/devel/rust/master] libproc_macro: Implement Display for Group

[Thomas Schwinge]

https://gcc.gnu.org/g:fa88446bd539415fcb8301ba25048f8499422c88

commit fa88446bd539415fcb8301ba25048f8499422c88
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Mon Feb 20 15:48:13 2023 +0100

    libproc_macro: Implement Display for Group
    
    Implement the Display trait on internal rust Group structure.
    
    ChangeLog:
    
            * librust/proc_macro/rust/bridge/group.rs: Implement Display.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Diff:
---
 librust/proc_macro/rust/bridge/group.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/librust/proc_macro/rust/bridge/group.rs b/librust/proc_macro/rust/bridge/group.rs
index 6590f8952fa..5a68d87d972 100644
--- a/librust/proc_macro/rust/bridge/group.rs
+++ b/librust/proc_macro/rust/bridge/group.rs
@@ -1,4 +1,5 @@
 use bridge;
+use std::fmt;
 use Delimiter;
 
 #[repr(C)]
@@ -7,3 +8,24 @@ pub struct Group {
     delimiter: Delimiter,
     stream: bridge::token_stream::TokenStream,
 }
+impl fmt::Display for Group {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self.delimiter {
+            Delimiter::Parenthesis => f.write_str("(")?,
+            Delimiter::Brace => f.write_str("{")?,
+            Delimiter::Bracket => f.write_str("[")?,
+            Delimiter::None => (),
+        }
+
+        self.stream.fmt(f)?;
+
+        match self.delimiter {
+            Delimiter::Parenthesis => f.write_str(")")?,
+            Delimiter::Brace => f.write_str("}")?,
+            Delimiter::Bracket => f.write_str("]")?,
+            Delimiter::None => (),
+        }
+
+        Ok(())
+    }
+}