Use '#?' for rust debugging string

Author: nikoskoukis-slamcore

ftplugin/rust.vim

@@ -1,5 +1,5 @@
 function! s:DebugStringFunBase(desc, var)
-    let l:debug_str = 'println!("' . a:desc . '{}", ' . a:var . ');'
+    let l:debug_str = 'println!("' . a:desc . '{:#?}", ' . a:var . ');'
     return l:debug_str
 endfunc
 

test/ft/a.rust

@@ -1,2 +1,2 @@
-println!("[[Vader-workbench]:$1$] DEBUGGING STRING ==> {}", $2$);
-println!("a**2 + b**2: {}", a**2 + b**2);
+println!("[[Vader-workbench]:$1$] DEBUGGING STRING ==> {:#?}", $2$);
+println!("a**2 + b**2: {:#?}", a**2 + b**2);