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annotate lphobos/typeinfo1/ti_uint.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 | 2c3cd3596187 |
children |
rev | line source |
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1 | 1 |
2 // uint | |
3 | |
58
2c3cd3596187
[svn r62] Added support for TypeInfo _Array, _Function, _Pointer, _Delegate, _Enum
lindquist
parents:
52
diff
changeset
|
4 module typeinfo1.ti_uint; |
1 | 5 |
6 class TypeInfo_k : TypeInfo | |
7 { | |
8 char[] toString() { return "uint"; } | |
9 | |
10 hash_t getHash(void *p) | |
11 { | |
12 return *cast(uint *)p; | |
13 } | |
14 | |
15 int equals(void *p1, void *p2) | |
16 { | |
17 return *cast(uint *)p1 == *cast(uint *)p2; | |
18 } | |
19 | |
20 int compare(void *p1, void *p2) | |
21 { | |
22 if (*cast(uint*) p1 < *cast(uint*) p2) | |
23 return -1; | |
24 else if (*cast(uint*) p1 > *cast(uint*) p2) | |
25 return 1; | |
26 return 0; | |
27 } | |
28 | |
29 size_t tsize() | |
30 { | |
31 return uint.sizeof; | |
32 } | |
33 | |
34 void swap(void *p1, void *p2) | |
35 { | |
36 int t; | |
37 | |
38 t = *cast(uint *)p1; | |
39 *cast(uint *)p1 = *cast(uint *)p2; | |
40 *cast(uint *)p2 = t; | |
41 } | |
42 } | |
43 |