2.071.0 import article

ex1_a.d

module ex1_a;

void foo() {}

ex1_b.d

module ex1_b;

private import ex1_a; // note private is only for illustration

ex1_main.d

import ex1_b;

void main()
{
    ex1_a.foo();
}

ex2_a.d

module ex2_a;
import core.stdc.stdio: printf;

ex2_main.d

import ex2_a;

void main()
{
    printf("");
}

ex3_main.d

import std.range;

void main()
{
    import std.stdio : write;
    std.stdio.writeln("hello"); // not actually imported
}

ex4_a.d

module ex4_a;

int foo() { return 1; }

ex4_main.d

void main()
{
    int foo = 5;
    {
        import ex4_a;
        assert(foo == 5); // fails with dmd prior to 2.071.0
    }
}

ex5_a.d

module ex5_a;

mixin template foo()
{
    import std.stdio;
    void foo() { writeln("foo"); }
}

ex5_a2.d

module ex5_a;

mixin template foo()
{
    import std.stdio : writeln; // now C.bar will work
    void foo() { writeln("foo"); }
}

ex5_main.d

import ex5_a;

class C
{
    mixin foo;
    void bar()
    {
        writeln("hello"); // error, writeln symbol not found
    }
}

void main()
{
    auto c = new C;
    c.foo();
    c.bar();
}