Mercurial > projects > ldc
view tests/mini/bug34.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 |
line wrap: on
line source
module bug34; class MyTypeInfo_Pointer { char[] toString() { return m_next.toString() ~ "*"; } int opEquals(Object o) { TypeInfo_Pointer c; return this is o || ((c = cast(TypeInfo_Pointer)o) !is null && this.m_next == c.m_next); } hash_t getHash(void *p) { return cast(uint)*cast(void* *)p; } int equals(void *p1, void *p2) { return cast(int)(*cast(void* *)p1 == *cast(void* *)p2); } int compare(void *p1, void *p2) { if (*cast(void* *)p1 < *cast(void* *)p2) return -1; else if (*cast(void* *)p1 > *cast(void* *)p2) return 1; else return 0; } size_t tsize() { return (void*).sizeof; } void swap(void *p1, void *p2) { void* tmp; tmp = *cast(void**)p1; *cast(void**)p1 = *cast(void**)p2; *cast(void**)p2 = tmp; } TypeInfo next() { return m_next; } uint flags() { return 1; } TypeInfo m_next; } void main() { }