When we handle functions by name, an important detail is left out; overloaded functions with the same name, but different arguments. How can we drill down into these overloads?
Let's execute the following steps to inspect function overloads:
Get the function name, whether from a string or by inspecting
__traits(allMembers).Use
__traits(getOverloads, Aggregate, memberName)to get a list of symbols.Inspect the symbols with a loop and
is(typeof(overload)).
The code is as follows:
struct S {
void foo() {}
void foo(int a) {}
}
void main() {
import std.stdio;
foreach(overload; __traits(getOverloads, S, "foo"))
writeln(typeof(overload).stringof);
}The following is the result of the preceding code:
void() void(int a)