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c3c/resources/examples/contextfree/dynscope.c3
2025-03-03 00:32:20 +01:00

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module foo;
import std::io;
tlocal String context_user = "safe";
macro long reallyPerform(task)
{
io::printfn("%s: %s", context_user, task);
return task.len;
}
macro long perform(task)
{
return reallyPerform(task);
}
macro @with_mode(String user, #action, ...)
{
@scope(context_user)
{
context_user = user;
return #action($vasplat);
};
}
fn void main()
{
long val1 = perform("something");
long val2 = @with_mode("faster", perform, "reliable");
long val3 = perform((String[]){"something"});
io::printfn("%d %d %d", val1, val2, val3);
}