Mercurial > projects > ldc
view demos/qd1.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 | 22a56b65872b |
children |
line wrap: on
line source
module qd1; import qd; void main() { screen(640, 480); sleep(1); cls(Red); sleep(1); cls(Green); sleep(1); cls(Blue); sleep(1); // pset(10, 10); // line(0, 0, 100, 100, Box, Back(Red~Black)); // for (int i=0; i<=100; i+=10) { // line(i, 0, 100-i, 100); // line(0, i, 100, 100-i); // } // circle(100, 100, 50, 15, White~Black, Fill=White~Black); // paint(200, 200, Red, Back=White); // circle(100, 100, 50, 15, White); // paint(200, 200, Black); // pset(10, 11); pset(10, 11, Black); // pset(10, 10); // sleep(1); }