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annotate tests/mini/bug10.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 |
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40 | 1 module bug10; |
270
d9d5d59873d8
[svn r291] Fixed a bunch of the old Phobos tests to work with Tango.
lindquist
parents:
40
diff
changeset
|
2 extern(C) int printf(char*, ...); |
d9d5d59873d8
[svn r291] Fixed a bunch of the old Phobos tests to work with Tango.
lindquist
parents:
40
diff
changeset
|
3 |
40 | 4 class C |
5 { | |
6 char[] msg; | |
7 | |
8 this() | |
9 { | |
10 } | |
11 this(char[] msg) | |
12 { | |
13 this.msg = msg; | |
14 } | |
15 } | |
16 | |
17 void main() | |
18 { | |
19 auto c = new C(); | |
20 c.msg = "world"; | |
21 auto b = new C("hello"); | |
22 printf("%.*s\n", b.msg.length, b.msg.ptr); | |
23 printf("%.*s\n", c.msg.length, c.msg.ptr); | |
24 } |