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digitalmars.D.learn - pragma mangle on extern(C) in function body

reply Sebastiaan Koppe <mail skoppe.eu> writes:
While it is perfectly ok to define an extern(C) function in a 
function method, I can't seem to get pragma(mangle, "...") on it 
to work.

---
pragma(mangle, "Foo")    // Ok
extern(C) void foo();

void main() {
     pragma(mangle, "Bar")    // Error....
     extern(C) void bar();
}
---

Any idea why?
Jan 16
next sibling parent Sebastiaan Koppe <mail skoppe.eu> writes:
On Wednesday, 16 January 2019 at 19:41:04 UTC, Sebastiaan Koppe 
wrote:
 While it is perfectly ok to define an extern(C) function in a 
 function method, I can't seem to get pragma(mangle, "...") on 
 it to work.

 ---
 pragma(mangle, "Foo")    // Ok
 extern(C) void foo();

 void main() {
     pragma(mangle, "Bar")    // Error....
     extern(C) void bar();
 }
 ---

 Any idea why?
See also: https://issues.dlang.org/show_bug.cgi?id=15843 https://issues.dlang.org/show_bug.cgi?id=17638 https://issues.dlang.org/show_bug.cgi?id=19149
Jan 16
prev sibling parent reply Steven Schveighoffer <schveiguy gmail.com> writes:
On 1/16/19 2:41 PM, Sebastiaan Koppe wrote:
 While it is perfectly ok to define an extern(C) function in a function 
 method, I can't seem to get pragma(mangle, "...") on it to work.
 
 ---
 pragma(mangle, "Foo")    // Ok
 extern(C) void foo();
 
 void main() {
      pragma(mangle, "Bar")    // Error....
      extern(C) void bar();
 }
 ---
 
 Any idea why?
I found the same error, not too long ago. I would note also, the error is not very good: Error: unrecognized pragma(mangle) Which is the same error you get if you put any unknown pragma identifier in there. I'm guessing it's a missed case in the compiler, and not intentionally omitted. -Steve
Jan 16
parent Sebastiaan Koppe <mail skoppe.eu> writes:
On Wednesday, 16 January 2019 at 19:59:02 UTC, Steven 
Schveighoffer wrote:
 I'm guessing it's a missed case in the compiler, and not 
 intentionally omitted.

 -Steve
The workaround is quite silly. Seems like a parser issue. --- pragma(mangle, "Foo") extern(C) void foo(); mixin template T() { pragma(mangle, "Bar") extern(C) void bar(); } void main() { mixin T!(); // Hurrah! } ---
Jan 16