On Monday, 25 February 2013 at 16:32:50 UTC, js.mdnq wrote:
We have __FILE__ and __LINE__. Is there a __FUNCTION__ that
gives the current function name? This helps with errors.
As was previously stated there's a pending pull request that
properly implements __FUNCTION__ and more.
If you can't wait for it, this is what I've been using ...
// put this in a module to re-use ...
// support functions
string fg_MakeFuncSig( string a_FName, string a_Sig )
{
return a_FName ~ "<" ~ a_Sig ~ ">";
}
string fg_MakeObjFuncSig( string a_OName, string a_FName, string
a_Sig )
{
return a_OName ~ "." ~ a_FName ~ "<" ~ a_Sig ~ ">";
}
// function name only
enum __FUNCTION_NAME = q{ __traits(identifier, __traits(parent,
{})) };
// function name and signature
enum __FUNCTION_SIG = q{ fg_MakeFuncSig( __traits(identifier,
__traits(parent, {})), typeof(__traits(parent, {})).stringof ) };
// class or struct member function name and signature
enum __OBJ_FUNCTION_SIG = q{ fg_MakeObjFuncSig(
typeof(this).stringof, __traits(identifier, __traits(parent,
{})), typeof(__traits(parent, {})).stringof ) };
// example code showing use.
struct X
{
void test( int a_i )
{
writeln( mixin(__OBJ_FUNCTION_SIG) );
}
}
int main()
{
writeln( mixin(__FUNCTION) );
writeln( mixin(__FUNCTION_SIG) );
X x;
x.test(1);
}
--rt
