https://d.puremagic.com/issues/show_bug.cgi?id=11601
Summary: pragma(msg, ...) output not silenced inside
is(typeof()) and __traits(compiles, ...)
Product: D
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: DMD
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from Simen Kjaeraas <[email protected]> 2013-11-25 00:43:57
PST ---
void foo(T)() {
static if (!is(T : int)) {
pragma(msg, "Error message.");
}
static assert(is(T : int));
}
void main() {
assert(!is(typeof(foo!string)));
}
The above program outputs "Error message." before concluding that the function
could not be instantiated. In my use case, the pragma is used to tell the user
exactly what he's doing wrong, and have absolutely no use when testing if the
code compiles or not.
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