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  1. import typetraits
  2.  
  3. type MyObj = object
  4. type MyObj2 = object
  5.  
  6. proc test( x:int ) = discard
  7. proc test( x:MyObj ) = discard
  8.  
  9. template hasTestProc(x:typed) =
  10.     when( compiles( test(x) ) ):
  11.         echo typetraits.name( type(x) ), " has Test Proc"
  12.     else:
  13.         echo typetraits.name( type(x) ), " doesn't have Test Proc"
  14.  
  15. hasTestProc( 0 ) 
  16. hasTestProc( "abc" ) 
  17. hasTestProc( MyObj() )
  18. hasTestProc( MyObj2() )
Success #stdin #stdout 0s 4284KB
comments (?)
stdin 
Standard input is empty
stdout 
int has Test Proc
string doesn't have Test Proc
MyObj has Test Proc
MyObj2 doesn't have Test Proc
https://ideone.com/txRmOj
language:
Nim (nim 0.19.4)
created:
6 years ago
visibility:
public

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