Mercurial > projects > ldc
annotate tests/mini/classes3.d @ 1499:df11cdec45a2
Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324.
The idea is to separate the notion of const from 'this variable can always be
replaced with its initializer' in the frontend. To do that, I introduced
Declaration::isSameAsInitializer, which is overridden in VarDeclaration to
return false for constants that have a struct literal initializer.
So
{{{
const S s = S(5);
void foo() { auto ps = &s; }
// is no longer replaced by
void foo() { auto ps = &(S(5)); }
}}}
To make taking the address of a struct constant with a struct-initializer
outside of function scope possible, I made sure that AddrExp::optimize doesn't
try to run the argument's optimization with WANTinterpret - that'd again
replace the constant with a struct literal temporary.
author | Christian Kamm <kamm incasoftware de> |
---|---|
date | Sun, 14 Jun 2009 19:49:58 +0200 |
parents | 1bb99290e03a |
children |
rev | line source |
---|---|
1 | 1 class C |
2 { | |
3 int c; | |
4 long f(long l) | |
5 { | |
6 return l; | |
7 } | |
8 } | |
9 | |
10 class D : C | |
11 { | |
12 int d; | |
13 override long f(long l) | |
14 { | |
15 return l*2; | |
16 } | |
17 } | |
18 | |
19 void main() | |
20 { | |
21 scope c = new C; | |
22 assert(c.f(25L) == 25); | |
23 scope d = new D; | |
24 assert(d.f(25L) == 50); | |
25 C cd = d; | |
26 assert(cd.f(25L) == 50); | |
27 assert(func(d,25L) == 50); | |
28 } | |
29 | |
30 long func(C c, long l) | |
31 { | |
32 return c.f(l); | |
33 } |