Is this expected behaviour?

bar.d
---
void foo(string s)
{
}


app.d
---

import std.stdio;
import bar;

void foo(int x)
{
}

void main()
{
  foo("hi");
};


===
Error: function app.foo (int x) is not callable using argument types (string)

JN wrote:

> Is this expected behaviour?
>
> bar.d
> ---
> void foo(string s)
> {
> }
>
>
> app.d
> ---
>
> import std.stdio;
> import bar;
>
> void foo(int x)
> {
> }
>
> void main()
> {
>    foo("hi");
> };
>
>
> ===
> Error: function app.foo (int x) is not callable using argument types (string)

yes. this is done so unqualified won't silently "steal" your functions. this can cause some unexpected (and hard to find) bugs.

if you want it to work, you can either do qualified import

	import bar : foo;

or manuall bring overloads from `bar` with

	alias foo = bar.foo;

On Thursday, 22 February 2018 at 21:19:12 UTC, ketmar wrote:
>
> yes. this is done so unqualified won't silently "steal" your functions. this can cause some unexpected (and hard to find) bugs.
>
> if you want it to work, you can either do qualified import
>
> 	import bar : foo;
>
> or manuall bring overloads from `bar` with
>
> 	alias foo = bar.foo;

I see, how about this one:

bar.d
---
void foo(T)(T t)
{
}
app.d
---
import std.stdio;
import bar;
void foo(T : string)(T t)
{
}
void main()
{
   foo(123);
};

same idea?

JN wrote:

> same idea?

absolutely the same. non-qualified imports (be it template, or function) won't take part in overload resoultion.

On Thursday, 22 February 2018 at 21:12:45 UTC, JN wrote:
> Is this expected behaviour?
>
> bar.d
> ---
> void foo(string s)
> {
> }
>
>
> app.d
> ---
>
> import std.stdio;
> import bar;
>
> void foo(int x)
> {
> }
>
> void main()
> {
>   foo("hi");
> };
>
>
> ===
> Error: function app.foo (int x) is not callable using argument types (string)

https://dlang.org/articles/hijack.html