https://d.puremagic.com/issues/show_bug.cgi?id=12278
Summary: __traits(classInstanceSize) returns wrong value if
used before class is declared
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: DMD
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from Adam D. Ruppe <[email protected]> 2014-02-28
10:21:05 PST ---
class Foo {
InPlace!Bar inside;
}
class Bar { }
struct InPlace(T) {
pragma(msg, __traits(classInstanceSize, T));
private byte[__traits(classInstanceSize, T)] rawData;
void initializeObject() {
pragma(msg, __traits(classInstanceSize, T));
}
}
dmd bug.d
0u
8u
The first one, where the static array is declared, gives 0. The correct value
of 8 is given inside the function.
If you move `class Bar{}` to above Foo's definition, it correctly gives 8 at
both msgs.
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